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Diffstat (limited to 'bfd/coffcode.h')
| -rw-r--r-- | bfd/coffcode.h | 6134 |
1 files changed, 6134 insertions, 0 deletions
diff --git a/bfd/coffcode.h b/bfd/coffcode.h new file mode 100644 index 0000000..9990b16 --- /dev/null +++ b/bfd/coffcode.h @@ -0,0 +1,6134 @@ +/* Support for the generic parts of most COFF variants, for BFD. + Copyright (C) 1990-2014 Free Software Foundation, Inc. + Written by Cygnus Support. + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* Most of this hacked by Steve Chamberlain, + sac@cygnus.com. */ +/* +SECTION + coff backends + + BFD supports a number of different flavours of coff format. + The major differences between formats are the sizes and + alignments of fields in structures on disk, and the occasional + extra field. + + Coff in all its varieties is implemented with a few common + files and a number of implementation specific files. For + example, The 88k bcs coff format is implemented in the file + @file{coff-m88k.c}. This file @code{#include}s + @file{coff/m88k.h} which defines the external structure of the + coff format for the 88k, and @file{coff/internal.h} which + defines the internal structure. @file{coff-m88k.c} also + defines the relocations used by the 88k format + @xref{Relocations}. + + The Intel i960 processor version of coff is implemented in + @file{coff-i960.c}. This file has the same structure as + @file{coff-m88k.c}, except that it includes @file{coff/i960.h} + rather than @file{coff-m88k.h}. + +SUBSECTION + Porting to a new version of coff + + The recommended method is to select from the existing + implementations the version of coff which is most like the one + you want to use. For example, we'll say that i386 coff is + the one you select, and that your coff flavour is called foo. + Copy @file{i386coff.c} to @file{foocoff.c}, copy + @file{../include/coff/i386.h} to @file{../include/coff/foo.h}, + and add the lines to @file{targets.c} and @file{Makefile.in} + so that your new back end is used. Alter the shapes of the + structures in @file{../include/coff/foo.h} so that they match + what you need. You will probably also have to add + @code{#ifdef}s to the code in @file{coff/internal.h} and + @file{coffcode.h} if your version of coff is too wild. + + You can verify that your new BFD backend works quite simply by + building @file{objdump} from the @file{binutils} directory, + and making sure that its version of what's going on and your + host system's idea (assuming it has the pretty standard coff + dump utility, usually called @code{att-dump} or just + @code{dump}) are the same. Then clean up your code, and send + what you've done to Cygnus. Then your stuff will be in the + next release, and you won't have to keep integrating it. + +SUBSECTION + How the coff backend works + +SUBSUBSECTION + File layout + + The Coff backend is split into generic routines that are + applicable to any Coff target and routines that are specific + to a particular target. The target-specific routines are + further split into ones which are basically the same for all + Coff targets except that they use the external symbol format + or use different values for certain constants. + + The generic routines are in @file{coffgen.c}. These routines + work for any Coff target. They use some hooks into the target + specific code; the hooks are in a @code{bfd_coff_backend_data} + structure, one of which exists for each target. + + The essentially similar target-specific routines are in + @file{coffcode.h}. This header file includes executable C code. + The various Coff targets first include the appropriate Coff + header file, make any special defines that are needed, and + then include @file{coffcode.h}. + + Some of the Coff targets then also have additional routines in + the target source file itself. + + For example, @file{coff-i960.c} includes + @file{coff/internal.h} and @file{coff/i960.h}. It then + defines a few constants, such as @code{I960}, and includes + @file{coffcode.h}. Since the i960 has complex relocation + types, @file{coff-i960.c} also includes some code to + manipulate the i960 relocs. This code is not in + @file{coffcode.h} because it would not be used by any other + target. + +SUBSUBSECTION + Coff long section names + + In the standard Coff object format, section names are limited to + the eight bytes available in the @code{s_name} field of the + @code{SCNHDR} section header structure. The format requires the + field to be NUL-padded, but not necessarily NUL-terminated, so + the longest section names permitted are a full eight characters. + + The Microsoft PE variants of the Coff object file format add + an extension to support the use of long section names. This + extension is defined in section 4 of the Microsoft PE/COFF + specification (rev 8.1). If a section name is too long to fit + into the section header's @code{s_name} field, it is instead + placed into the string table, and the @code{s_name} field is + filled with a slash ("/") followed by the ASCII decimal + representation of the offset of the full name relative to the + string table base. + + Note that this implies that the extension can only be used in object + files, as executables do not contain a string table. The standard + specifies that long section names from objects emitted into executable + images are to be truncated. + + However, as a GNU extension, BFD can generate executable images + that contain a string table and long section names. This + would appear to be technically valid, as the standard only says + that Coff debugging information is deprecated, not forbidden, + and in practice it works, although some tools that parse PE files + expecting the MS standard format may become confused; @file{PEview} is + one known example. + + The functionality is supported in BFD by code implemented under + the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not + defined, the format does not support long section names in any way. + If defined, it is used to initialise a flag, + @code{_bfd_coff_long_section_names}, and a hook function pointer, + @code{_bfd_coff_set_long_section_names}, in the Coff backend data + structure. The flag controls the generation of long section names + in output BFDs at runtime; if it is false, as it will be by default + when generating an executable image, long section names are truncated; + if true, the long section names extension is employed. The hook + points to a function that allows the value of the flag to be altered + at runtime, on formats that support long section names at all; on + other formats it points to a stub that returns an error indication. + + With input BFDs, the flag is set according to whether any long section + names are detected while reading the section headers. For a completely + new BFD, the flag is set to the default for the target format. This + information can be used by a client of the BFD library when deciding + what output format to generate, and means that a BFD that is opened + for read and subsequently converted to a writeable BFD and modified + in-place will retain whatever format it had on input. + + If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is + defined to the value "1", then long section names are enabled by + default; if it is defined to the value zero, they are disabled by + default (but still accepted in input BFDs). The header @file{coffcode.h} + defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is + used in the backends to initialise the backend data structure fields + appropriately; see the comments for further detail. + +SUBSUBSECTION + Bit twiddling + + Each flavour of coff supported in BFD has its own header file + describing the external layout of the structures. There is also + an internal description of the coff layout, in + @file{coff/internal.h}. A major function of the + coff backend is swapping the bytes and twiddling the bits to + translate the external form of the structures into the normal + internal form. This is all performed in the + @code{bfd_swap}_@i{thing}_@i{direction} routines. Some + elements are different sizes between different versions of + coff; it is the duty of the coff version specific include file + to override the definitions of various packing routines in + @file{coffcode.h}. E.g., the size of line number entry in coff is + sometimes 16 bits, and sometimes 32 bits. @code{#define}ing + @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the + correct one. No doubt, some day someone will find a version of + coff which has a varying field size not catered to at the + moment. To port BFD, that person will have to add more @code{#defines}. + Three of the bit twiddling routines are exported to + @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in} + and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol + table on its own, but uses BFD to fix things up. More of the + bit twiddlers are exported for @code{gas}; + @code{coff_swap_aux_out}, @code{coff_swap_sym_out}, + @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out}, + @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out}, + @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track + of all the symbol table and reloc drudgery itself, thereby + saving the internal BFD overhead, but uses BFD to swap things + on the way out, making cross ports much safer. Doing so also + allows BFD (and thus the linker) to use the same header files + as @code{gas}, which makes one avenue to disaster disappear. + +SUBSUBSECTION + Symbol reading + + The simple canonical form for symbols used by BFD is not rich + enough to keep all the information available in a coff symbol + table. The back end gets around this problem by keeping the original + symbol table around, "behind the scenes". + + When a symbol table is requested (through a call to + @code{bfd_canonicalize_symtab}), a request gets through to + @code{coff_get_normalized_symtab}. This reads the symbol table from + the coff file and swaps all the structures inside into the + internal form. It also fixes up all the pointers in the table + (represented in the file by offsets from the first symbol in + the table) into physical pointers to elements in the new + internal table. This involves some work since the meanings of + fields change depending upon context: a field that is a + pointer to another structure in the symbol table at one moment + may be the size in bytes of a structure at the next. Another + pass is made over the table. All symbols which mark file names + (<<C_FILE>> symbols) are modified so that the internal + string points to the value in the auxent (the real filename) + rather than the normal text associated with the symbol + (@code{".file"}). + + At this time the symbol names are moved around. Coff stores + all symbols less than nine characters long physically + within the symbol table; longer strings are kept at the end of + the file in the string table. This pass moves all strings + into memory and replaces them with pointers to the strings. + + The symbol table is massaged once again, this time to create + the canonical table used by the BFD application. Each symbol + is inspected in turn, and a decision made (using the + @code{sclass} field) about the various flags to set in the + @code{asymbol}. @xref{Symbols}. The generated canonical table + shares strings with the hidden internal symbol table. + + Any linenumbers are read from the coff file too, and attached + to the symbols which own the functions the linenumbers belong to. + +SUBSUBSECTION + Symbol writing + + Writing a symbol to a coff file which didn't come from a coff + file will lose any debugging information. The @code{asymbol} + structure remembers the BFD from which the symbol was taken, and on + output the back end makes sure that the same destination target as + source target is present. + + When the symbols have come from a coff file then all the + debugging information is preserved. + + Symbol tables are provided for writing to the back end in a + vector of pointers to pointers. This allows applications like + the linker to accumulate and output large symbol tables + without having to do too much byte copying. + + This function runs through the provided symbol table and + patches each symbol marked as a file place holder + (@code{C_FILE}) to point to the next file place holder in the + list. It also marks each @code{offset} field in the list with + the offset from the first symbol of the current symbol. + + Another function of this procedure is to turn the canonical + value form of BFD into the form used by coff. Internally, BFD + expects symbol values to be offsets from a section base; so a + symbol physically at 0x120, but in a section starting at + 0x100, would have the value 0x20. Coff expects symbols to + contain their final value, so symbols have their values + changed at this point to reflect their sum with their owning + section. This transformation uses the + <<output_section>> field of the @code{asymbol}'s + @code{asection} @xref{Sections}. + + o <<coff_mangle_symbols>> + + This routine runs though the provided symbol table and uses + the offsets generated by the previous pass and the pointers + generated when the symbol table was read in to create the + structured hierarchy required by coff. It changes each pointer + to a symbol into the index into the symbol table of the asymbol. + + o <<coff_write_symbols>> + + This routine runs through the symbol table and patches up the + symbols from their internal form into the coff way, calls the + bit twiddlers, and writes out the table to the file. + +*/ + +/* +INTERNAL_DEFINITION + coff_symbol_type + +DESCRIPTION + The hidden information for an <<asymbol>> is described in a + <<combined_entry_type>>: + +CODE_FRAGMENT +. +.typedef struct coff_ptr_struct +.{ +. {* Remembers the offset from the first symbol in the file for +. this symbol. Generated by coff_renumber_symbols. *} +. unsigned int offset; +. +. {* Should the value of this symbol be renumbered. Used for +. XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *} +. unsigned int fix_value : 1; +. +. {* Should the tag field of this symbol be renumbered. +. Created by coff_pointerize_aux. *} +. unsigned int fix_tag : 1; +. +. {* Should the endidx field of this symbol be renumbered. +. Created by coff_pointerize_aux. *} +. unsigned int fix_end : 1; +. +. {* Should the x_csect.x_scnlen field be renumbered. +. Created by coff_pointerize_aux. *} +. unsigned int fix_scnlen : 1; +. +. {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the +. index into the line number entries. Set by coff_slurp_symbol_table. *} +. unsigned int fix_line : 1; +. +. {* The container for the symbol structure as read and translated +. from the file. *} +. union +. { +. union internal_auxent auxent; +. struct internal_syment syment; +. } u; +. +. {* Selector for the union above. *} +. bfd_boolean is_sym; +.} combined_entry_type; +. +. +.{* Each canonical asymbol really looks like this: *} +. +.typedef struct coff_symbol_struct +.{ +. {* The actual symbol which the rest of BFD works with *} +. asymbol symbol; +. +. {* A pointer to the hidden information for this symbol *} +. combined_entry_type *native; +. +. {* A pointer to the linenumber information for this symbol *} +. struct lineno_cache_entry *lineno; +. +. {* Have the line numbers been relocated yet ? *} +. bfd_boolean done_lineno; +.} coff_symbol_type; + +*/ + +#include "libiberty.h" + +#ifdef COFF_WITH_PE +#include "peicode.h" +#else +#include "coffswap.h" +#endif + +#define STRING_SIZE_SIZE 4 + +#define DOT_DEBUG ".debug" +#define DOT_ZDEBUG ".zdebug" +#define GNU_LINKONCE_WI ".gnu.linkonce.wi." +#define GNU_LINKONCE_WT ".gnu.linkonce.wt." +#define DOT_RELOC ".reloc" + +#if defined (COFF_LONG_SECTION_NAMES) +/* Needed to expand the inputs to BLANKOR1TOODD. */ +#define COFFLONGSECTIONCATHELPER(x,y) x ## y +/* If the input macro Y is blank or '1', return an odd number; if it is + '0', return an even number. Result undefined in all other cases. */ +#define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y) +/* Defined to numerical 0 or 1 according to whether generation of long + section names is disabled or enabled by default. */ +#define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1) +/* Where long section names are supported, we allow them to be enabled + and disabled at runtime, so select an appropriate hook function for + _bfd_coff_set_long_section_names. */ +#define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed +#else /* !defined (COFF_LONG_SECTION_NAMES) */ +/* If long section names are not supported, this stub disallows any + attempt to enable them at run-time. */ +#define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed +#endif /* defined (COFF_LONG_SECTION_NAMES) */ + +/* Define a macro that can be used to initialise both the fields relating + to long section names in the backend data struct simultaneously. */ +#if COFF_ENABLE_LONG_SECTION_NAMES +#define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER +#else /* !COFF_ENABLE_LONG_SECTION_NAMES */ +#define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER +#endif /* COFF_ENABLE_LONG_SECTION_NAMES */ + +#if defined (COFF_LONG_SECTION_NAMES) +static bfd_boolean bfd_coff_set_long_section_names_allowed + (bfd *, int); +#else /* !defined (COFF_LONG_SECTION_NAMES) */ +static bfd_boolean bfd_coff_set_long_section_names_disallowed + (bfd *, int); +#endif /* defined (COFF_LONG_SECTION_NAMES) */ +static long sec_to_styp_flags + (const char *, flagword); +static bfd_boolean styp_to_sec_flags + (bfd *, void *, const char *, asection *, flagword *); +static bfd_boolean coff_bad_format_hook + (bfd *, void *); +static void coff_set_custom_section_alignment + (bfd *, asection *, const struct coff_section_alignment_entry *, + const unsigned int); +static bfd_boolean coff_new_section_hook + (bfd *, asection *); +static bfd_boolean coff_set_arch_mach_hook + (bfd *, void *); +static bfd_boolean coff_write_relocs + (bfd *, int); +static bfd_boolean coff_set_flags + (bfd *, unsigned int *, unsigned short *); +static bfd_boolean coff_set_arch_mach + (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED; +static bfd_boolean coff_compute_section_file_positions + (bfd *); +static bfd_boolean coff_write_object_contents + (bfd *) ATTRIBUTE_UNUSED; +static bfd_boolean coff_set_section_contents + (bfd *, asection *, const void *, file_ptr, bfd_size_type); +static void * buy_and_read + (bfd *, file_ptr, bfd_size_type); +static bfd_boolean coff_slurp_line_table + (bfd *, asection *); +static bfd_boolean coff_slurp_symbol_table + (bfd *); +static enum coff_symbol_classification coff_classify_symbol + (bfd *, struct internal_syment *); +static bfd_boolean coff_slurp_reloc_table + (bfd *, asection *, asymbol **); +static long coff_canonicalize_reloc + (bfd *, asection *, arelent **, asymbol **); +#ifndef coff_mkobject_hook +static void * coff_mkobject_hook + (bfd *, void *, void *); +#endif +#ifdef COFF_WITH_PE +static flagword handle_COMDAT + (bfd *, flagword, void *, const char *, asection *); +#endif +#ifdef COFF_IMAGE_WITH_PE +static bfd_boolean coff_read_word + (bfd *, unsigned int *); +static unsigned int coff_compute_checksum + (bfd *); +static bfd_boolean coff_apply_checksum + (bfd *); +#endif +#ifdef TICOFF +static bfd_boolean ticoff0_bad_format_hook + (bfd *, void * ); +static bfd_boolean ticoff1_bad_format_hook + (bfd *, void * ); +#endif + +/* void warning(); */ + +#if defined (COFF_LONG_SECTION_NAMES) +static bfd_boolean +bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable) +{ + coff_backend_info (abfd)->_bfd_coff_long_section_names = enable; + return TRUE; +} +#else /* !defined (COFF_LONG_SECTION_NAMES) */ +static bfd_boolean +bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable) +{ + (void) abfd; + (void) enable; + return FALSE; +} +#endif /* defined (COFF_LONG_SECTION_NAMES) */ + +/* Return a word with STYP_* (scnhdr.s_flags) flags set to represent + the incoming SEC_* flags. The inverse of this function is + styp_to_sec_flags(). NOTE: If you add to/change this routine, you + should probably mirror the changes in styp_to_sec_flags(). */ + +#ifndef COFF_WITH_PE + +/* Macros for setting debugging flags. */ + +#ifdef STYP_DEBUG +#define STYP_XCOFF_DEBUG STYP_DEBUG +#else +#define STYP_XCOFF_DEBUG STYP_INFO +#endif + +#ifdef COFF_ALIGN_IN_S_FLAGS +#define STYP_DEBUG_INFO STYP_DSECT +#else +#define STYP_DEBUG_INFO STYP_INFO +#endif + +static long +sec_to_styp_flags (const char *sec_name, flagword sec_flags) +{ + long styp_flags = 0; + + if (!strcmp (sec_name, _TEXT)) + { + styp_flags = STYP_TEXT; + } + else if (!strcmp (sec_name, _DATA)) + { + styp_flags = STYP_DATA; + } + else if (!strcmp (sec_name, _BSS)) + { + styp_flags = STYP_BSS; +#ifdef _COMMENT + } + else if (!strcmp (sec_name, _COMMENT)) + { + styp_flags = STYP_INFO; +#endif /* _COMMENT */ +#ifdef _LIB + } + else if (!strcmp (sec_name, _LIB)) + { + styp_flags = STYP_LIB; +#endif /* _LIB */ +#ifdef _LIT + } + else if (!strcmp (sec_name, _LIT)) + { + styp_flags = STYP_LIT; +#endif /* _LIT */ + } + else if (CONST_STRNEQ (sec_name, DOT_DEBUG) + || CONST_STRNEQ (sec_name, DOT_ZDEBUG)) + { + /* Handle the XCOFF debug section and DWARF2 debug sections. */ + if (!sec_name[6]) + styp_flags = STYP_XCOFF_DEBUG; + else + styp_flags = STYP_DEBUG_INFO; + } + else if (CONST_STRNEQ (sec_name, ".stab")) + { + styp_flags = STYP_DEBUG_INFO; + } +#ifdef COFF_LONG_SECTION_NAMES + else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI) + || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT)) + { + styp_flags = STYP_DEBUG_INFO; + } +#endif +#ifdef RS6000COFF_C + else if (!strcmp (sec_name, _PAD)) + { + styp_flags = STYP_PAD; + } + else if (!strcmp (sec_name, _LOADER)) + { + styp_flags = STYP_LOADER; + } + else if (!strcmp (sec_name, _EXCEPT)) + { + styp_flags = STYP_EXCEPT; + } + else if (!strcmp (sec_name, _TYPCHK)) + { + styp_flags = STYP_TYPCHK; + } + else if (sec_flags & SEC_DEBUGGING) + { + int i; + + for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++) + if (!strcmp (sec_name, xcoff_dwsect_names[i].name)) + { + styp_flags = STYP_DWARF | xcoff_dwsect_names[i].flag; + break; + } + } +#endif + /* Try and figure out what it should be */ + else if (sec_flags & SEC_CODE) + { + styp_flags = STYP_TEXT; + } + else if (sec_flags & SEC_DATA) + { + styp_flags = STYP_DATA; + } + else if (sec_flags & SEC_READONLY) + { +#ifdef STYP_LIT /* 29k readonly text/data section */ + styp_flags = STYP_LIT; +#else + styp_flags = STYP_TEXT; +#endif /* STYP_LIT */ + } + else if (sec_flags & SEC_LOAD) + { + styp_flags = STYP_TEXT; + } + else if (sec_flags & SEC_ALLOC) + { + styp_flags = STYP_BSS; + } + +#ifdef STYP_CLINK + if (sec_flags & SEC_TIC54X_CLINK) + styp_flags |= STYP_CLINK; +#endif + +#ifdef STYP_BLOCK + if (sec_flags & SEC_TIC54X_BLOCK) + styp_flags |= STYP_BLOCK; +#endif + +#ifdef STYP_NOLOAD + if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0) + styp_flags |= STYP_NOLOAD; +#endif + + return styp_flags; +} + +#else /* COFF_WITH_PE */ + +/* The PE version; see above for the general comments. The non-PE + case seems to be more guessing, and breaks PE format; specifically, + .rdata is readonly, but it sure ain't text. Really, all this + should be set up properly in gas (or whatever assembler is in use), + and honor whatever objcopy/strip, etc. sent us as input. */ + +static long +sec_to_styp_flags (const char *sec_name, flagword sec_flags) +{ + long styp_flags = 0; + bfd_boolean is_dbg = FALSE; + + if (CONST_STRNEQ (sec_name, DOT_DEBUG) + || CONST_STRNEQ (sec_name, DOT_ZDEBUG) +#ifdef COFF_LONG_SECTION_NAMES + || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI) + || CONST_STRNEQ (sec_name, GNU_LINKONCE_WT) +#endif + || CONST_STRNEQ (sec_name, ".stab")) + is_dbg = TRUE; + + /* caution: there are at least three groups of symbols that have + very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*. + SEC_* are the BFD internal flags, used for generic BFD + information. STYP_* are the COFF section flags which appear in + COFF files. IMAGE_SCN_* are the PE section flags which appear in + PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap, + but there are more IMAGE_SCN_* flags. */ + + /* FIXME: There is no gas syntax to specify the debug section flag. */ + if (is_dbg) + { + sec_flags &= (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD + | SEC_LINK_DUPLICATES_SAME_CONTENTS + | SEC_LINK_DUPLICATES_SAME_SIZE); + sec_flags |= SEC_DEBUGGING | SEC_READONLY; + } + + /* skip LOAD */ + /* READONLY later */ + /* skip RELOC */ + if ((sec_flags & SEC_CODE) != 0) + styp_flags |= IMAGE_SCN_CNT_CODE; + if ((sec_flags & (SEC_DATA | SEC_DEBUGGING)) != 0) + styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA; + if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0) + styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */ + /* skip ROM */ + /* skip constRUCTOR */ + /* skip CONTENTS */ + if ((sec_flags & SEC_IS_COMMON) != 0) + styp_flags |= IMAGE_SCN_LNK_COMDAT; + if ((sec_flags & SEC_DEBUGGING) != 0) + styp_flags |= IMAGE_SCN_MEM_DISCARDABLE; + if ((sec_flags & SEC_EXCLUDE) != 0 && !is_dbg) + styp_flags |= IMAGE_SCN_LNK_REMOVE; + if ((sec_flags & SEC_NEVER_LOAD) != 0 && !is_dbg) + styp_flags |= IMAGE_SCN_LNK_REMOVE; + /* skip IN_MEMORY */ + /* skip SORT */ + if (sec_flags & SEC_LINK_ONCE) + styp_flags |= IMAGE_SCN_LNK_COMDAT; + if ((sec_flags + & (SEC_LINK_DUPLICATES_DISCARD | SEC_LINK_DUPLICATES_SAME_CONTENTS + | SEC_LINK_DUPLICATES_SAME_SIZE)) != 0) + styp_flags |= IMAGE_SCN_LNK_COMDAT; + + /* skip LINKER_CREATED */ + + if ((sec_flags & SEC_COFF_NOREAD) == 0) + styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */ + if ((sec_flags & SEC_READONLY) == 0) + styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */ + if (sec_flags & SEC_CODE) + styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */ + if (sec_flags & SEC_COFF_SHARED) + styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */ + + return styp_flags; +} + +#endif /* COFF_WITH_PE */ + +/* Return a word with SEC_* flags set to represent the incoming STYP_* + flags (from scnhdr.s_flags). The inverse of this function is + sec_to_styp_flags(). NOTE: If you add to/change this routine, you + should probably mirror the changes in sec_to_styp_flags(). */ + +#ifndef COFF_WITH_PE + +static bfd_boolean +styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED, + void * hdr, + const char *name, + asection *section ATTRIBUTE_UNUSED, + flagword *flags_ptr) +{ + struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; + long styp_flags = internal_s->s_flags; + flagword sec_flags = 0; + +#ifdef STYP_BLOCK + if (styp_flags & STYP_BLOCK) + sec_flags |= SEC_TIC54X_BLOCK; +#endif + +#ifdef STYP_CLINK + if (styp_flags & STYP_CLINK) + sec_flags |= SEC_TIC54X_CLINK; +#endif + +#ifdef STYP_NOLOAD + if (styp_flags & STYP_NOLOAD) + sec_flags |= SEC_NEVER_LOAD; +#endif /* STYP_NOLOAD */ + + /* For 386 COFF, at least, an unloadable text or data section is + actually a shared library section. */ + if (styp_flags & STYP_TEXT) + { + if (sec_flags & SEC_NEVER_LOAD) + sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; + else + sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; + } + else if (styp_flags & STYP_DATA) + { + if (sec_flags & SEC_NEVER_LOAD) + sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; + else + sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; + } + else if (styp_flags & STYP_BSS) + { +#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY + if (sec_flags & SEC_NEVER_LOAD) + sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; + else +#endif + sec_flags |= SEC_ALLOC; + } + else if (styp_flags & STYP_INFO) + { + /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is + defined. coff_compute_section_file_positions uses + COFF_PAGE_SIZE to ensure that the low order bits of the + section VMA and the file offset match. If we don't know + COFF_PAGE_SIZE, we can't ensure the correct correspondence, + and demand page loading of the file will fail. */ +#if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS) + sec_flags |= SEC_DEBUGGING; +#endif + } + else if (styp_flags & STYP_PAD) + sec_flags = 0; +#ifdef RS6000COFF_C + else if (styp_flags & STYP_EXCEPT) + sec_flags |= SEC_LOAD; + else if (styp_flags & STYP_LOADER) + sec_flags |= SEC_LOAD; + else if (styp_flags & STYP_TYPCHK) + sec_flags |= SEC_LOAD; + else if (styp_flags & STYP_DWARF) + sec_flags |= SEC_DEBUGGING; +#endif + else if (strcmp (name, _TEXT) == 0) + { + if (sec_flags & SEC_NEVER_LOAD) + sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; + else + sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; + } + else if (strcmp (name, _DATA) == 0) + { + if (sec_flags & SEC_NEVER_LOAD) + sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; + else + sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; + } + else if (strcmp (name, _BSS) == 0) + { +#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY + if (sec_flags & SEC_NEVER_LOAD) + sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY; + else +#endif + sec_flags |= SEC_ALLOC; + } + else if (CONST_STRNEQ (name, DOT_DEBUG) + || CONST_STRNEQ (name, DOT_ZDEBUG) +#ifdef _COMMENT + || strcmp (name, _COMMENT) == 0 +#endif +#ifdef COFF_LONG_SECTION_NAMES + || CONST_STRNEQ (name, GNU_LINKONCE_WI) + || CONST_STRNEQ (name, GNU_LINKONCE_WT) +#endif + || CONST_STRNEQ (name, ".stab")) + { +#ifdef COFF_PAGE_SIZE + sec_flags |= SEC_DEBUGGING; +#endif + } +#ifdef _LIB + else if (strcmp (name, _LIB) == 0) + ; +#endif +#ifdef _LIT + else if (strcmp (name, _LIT) == 0) + sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY; +#endif + else + sec_flags |= SEC_ALLOC | SEC_LOAD; + +#ifdef STYP_LIT /* A29k readonly text/data section type. */ + if ((styp_flags & STYP_LIT) == STYP_LIT) + sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY); +#endif /* STYP_LIT */ + +#ifdef STYP_OTHER_LOAD /* Other loaded sections. */ + if (styp_flags & STYP_OTHER_LOAD) + sec_flags = (SEC_LOAD | SEC_ALLOC); +#endif /* STYP_SDATA */ + +#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) + /* As a GNU extension, if the name begins with .gnu.linkonce, we + only link a single copy of the section. This is used to support + g++. g++ will emit each template expansion in its own section. + The symbols will be defined as weak, so that multiple definitions + are permitted. The GNU linker extension is to actually discard + all but one of the sections. */ + if (CONST_STRNEQ (name, ".gnu.linkonce")) + sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; +#endif + + if (flags_ptr == NULL) + return FALSE; + + * flags_ptr = sec_flags; + return TRUE; +} + +#else /* COFF_WITH_PE */ + +static flagword +handle_COMDAT (bfd * abfd, + flagword sec_flags, + void * hdr, + const char *name, + asection *section) +{ + struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; + bfd_byte *esymstart, *esym, *esymend; + int seen_state = 0; + char *target_name = NULL; + + sec_flags |= SEC_LINK_ONCE; + + /* Unfortunately, the PE format stores essential information in + the symbol table, of all places. We need to extract that + information now, so that objdump and the linker will know how + to handle the section without worrying about the symbols. We + can't call slurp_symtab, because the linker doesn't want the + swapped symbols. */ + + /* COMDAT sections are special. The first symbol is the section + symbol, which tells what kind of COMDAT section it is. The + second symbol is the "comdat symbol" - the one with the + unique name. GNU uses the section symbol for the unique + name; MS uses ".text" for every comdat section. Sigh. - DJ */ + + /* This is not mirrored in sec_to_styp_flags(), but there + doesn't seem to be a need to, either, and it would at best be + rather messy. */ + + if (! _bfd_coff_get_external_symbols (abfd)) + return sec_flags; + + esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd); + esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); + + while (esym < esymend) + { + struct internal_syment isym; + char buf[SYMNMLEN + 1]; + const char *symname; + + bfd_coff_swap_sym_in (abfd, esym, & isym); + + BFD_ASSERT (sizeof (internal_s->s_name) <= SYMNMLEN); + + if (isym.n_scnum == section->target_index) + { + /* According to the MSVC documentation, the first + TWO entries with the section # are both of + interest to us. The first one is the "section + symbol" (section name). The second is the comdat + symbol name. Here, we've found the first + qualifying entry; we distinguish it from the + second with a state flag. + + In the case of gas-generated (at least until that + is fixed) .o files, it isn't necessarily the + second one. It may be some other later symbol. + + Since gas also doesn't follow MS conventions and + emits the section similar to .text$<name>, where + <something> is the name we're looking for, we + distinguish the two as follows: + + If the section name is simply a section name (no + $) we presume it's MS-generated, and look at + precisely the second symbol for the comdat name. + If the section name has a $, we assume it's + gas-generated, and look for <something> (whatever + follows the $) as the comdat symbol. */ + + /* All 3 branches use this. */ + symname = _bfd_coff_internal_syment_name (abfd, &isym, buf); + + /* PR 17512 file: 078-11867-0.004 */ + if (symname == NULL) + { + _bfd_error_handler (_("%B: unable to load COMDAT section name"), abfd); + break; + } + + switch (seen_state) + { + case 0: + { + /* The first time we've seen the symbol. */ + union internal_auxent aux; + + /* If it isn't the stuff we're expecting, die; + The MS documentation is vague, but it + appears that the second entry serves BOTH + as the comdat symbol and the defining + symbol record (either C_STAT or C_EXT, + possibly with an aux entry with debug + information if it's a function.) It + appears the only way to find the second one + is to count. (On Intel, they appear to be + adjacent, but on Alpha, they have been + found separated.) + + Here, we think we've found the first one, + but there's some checking we can do to be + sure. */ + + if (! ((isym.n_sclass == C_STAT + || isym.n_sclass == C_EXT) + && BTYPE (isym.n_type) == T_NULL + && isym.n_value == 0)) + abort (); + + /* FIXME LATER: MSVC generates section names + like .text for comdats. Gas generates + names like .text$foo__Fv (in the case of a + function). See comment above for more. */ + + if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0) + _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"), + abfd, symname, name); + + seen_state = 1; + + /* This is the section symbol. */ + bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)), + isym.n_type, isym.n_sclass, + 0, isym.n_numaux, & aux); + + target_name = strchr (name, '$'); + if (target_name != NULL) + { + /* Gas mode. */ + seen_state = 2; + /* Skip the `$'. */ + target_name += 1; + } + + /* FIXME: Microsoft uses NODUPLICATES and + ASSOCIATIVE, but gnu uses ANY and + SAME_SIZE. Unfortunately, gnu doesn't do + the comdat symbols right. So, until we can + fix it to do the right thing, we are + temporarily disabling comdats for the MS + types (they're used in DLLs and C++, but we + don't support *their* C++ libraries anyway + - DJ. */ + + /* Cygwin does not follow the MS style, and + uses ANY and SAME_SIZE where NODUPLICATES + and ASSOCIATIVE should be used. For + Interix, we just do the right thing up + front. */ + + switch (aux.x_scn.x_comdat) + { + case IMAGE_COMDAT_SELECT_NODUPLICATES: +#ifdef STRICT_PE_FORMAT + sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY; +#else + sec_flags &= ~SEC_LINK_ONCE; +#endif + break; + + case IMAGE_COMDAT_SELECT_ANY: + sec_flags |= SEC_LINK_DUPLICATES_DISCARD; + break; + + case IMAGE_COMDAT_SELECT_SAME_SIZE: + sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE; + break; + + case IMAGE_COMDAT_SELECT_EXACT_MATCH: + /* Not yet fully implemented ??? */ + sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS; + break; + + /* debug$S gets this case; other + implications ??? */ + + /* There may be no symbol... we'll search + the whole table... Is this the right + place to play this game? Or should we do + it when reading it in. */ + case IMAGE_COMDAT_SELECT_ASSOCIATIVE: +#ifdef STRICT_PE_FORMAT + /* FIXME: This is not currently implemented. */ + sec_flags |= SEC_LINK_DUPLICATES_DISCARD; +#else + sec_flags &= ~SEC_LINK_ONCE; +#endif + break; + + default: /* 0 means "no symbol" */ + /* debug$F gets this case; other + implications ??? */ + sec_flags |= SEC_LINK_DUPLICATES_DISCARD; + break; + } + } + break; + + case 2: + /* Gas mode: the first matching on partial name. */ + +#ifndef TARGET_UNDERSCORE +#define TARGET_UNDERSCORE 0 +#endif + /* Is this the name we're looking for ? */ + if (strcmp (target_name, + symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0) + { + /* Not the name we're looking for */ + esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); + continue; + } + /* Fall through. */ + case 1: + /* MSVC mode: the lexically second symbol (or + drop through from the above). */ + { + char *newname; + bfd_size_type amt; + + /* This must the second symbol with the + section #. It is the actual symbol name. + Intel puts the two adjacent, but Alpha (at + least) spreads them out. */ + + amt = sizeof (struct coff_comdat_info); + coff_section_data (abfd, section)->comdat + = (struct coff_comdat_info *) bfd_alloc (abfd, amt); + if (coff_section_data (abfd, section)->comdat == NULL) + abort (); + + coff_section_data (abfd, section)->comdat->symbol = + (esym - esymstart) / bfd_coff_symesz (abfd); + + amt = strlen (symname) + 1; + newname = (char *) bfd_alloc (abfd, amt); + if (newname == NULL) + abort (); + + strcpy (newname, symname); + coff_section_data (abfd, section)->comdat->name + = newname; + } + + goto breakloop; + } + } + + esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd); + } + + breakloop: + return sec_flags; +} + + +/* The PE version; see above for the general comments. + + Since to set the SEC_LINK_ONCE and associated flags, we have to + look at the symbol table anyway, we return the symbol table index + of the symbol being used as the COMDAT symbol. This is admittedly + ugly, but there's really nowhere else that we have access to the + required information. FIXME: Is the COMDAT symbol index used for + any purpose other than objdump? */ + +static bfd_boolean +styp_to_sec_flags (bfd *abfd, + void * hdr, + const char *name, + asection *section, + flagword *flags_ptr) +{ + struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; + long styp_flags = internal_s->s_flags; + flagword sec_flags; + bfd_boolean result = TRUE; + bfd_boolean is_dbg = FALSE; + + if (CONST_STRNEQ (name, DOT_DEBUG) + || CONST_STRNEQ (name, DOT_ZDEBUG) +#ifdef COFF_LONG_SECTION_NAMES + || CONST_STRNEQ (name, GNU_LINKONCE_WI) + || CONST_STRNEQ (name, GNU_LINKONCE_WT) +#endif + || CONST_STRNEQ (name, ".stab")) + is_dbg = TRUE; + /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */ + sec_flags = SEC_READONLY; + + /* If section disallows read, then set the NOREAD flag. */ + if ((styp_flags & IMAGE_SCN_MEM_READ) == 0) + sec_flags |= SEC_COFF_NOREAD; + + /* Process each flag bit in styp_flags in turn. */ + while (styp_flags) + { + long flag = styp_flags & - styp_flags; + char * unhandled = NULL; + + styp_flags &= ~ flag; + + /* We infer from the distinct read/write/execute bits the settings + of some of the bfd flags; the actual values, should we need them, + are also in pei_section_data (abfd, section)->pe_flags. */ + + switch (flag) + { + case STYP_DSECT: + unhandled = "STYP_DSECT"; + break; + case STYP_GROUP: + unhandled = "STYP_GROUP"; + break; + case STYP_COPY: + unhandled = "STYP_COPY"; + break; + case STYP_OVER: + unhandled = "STYP_OVER"; + break; +#ifdef SEC_NEVER_LOAD + case STYP_NOLOAD: + sec_flags |= SEC_NEVER_LOAD; + break; +#endif + case IMAGE_SCN_MEM_READ: + sec_flags &= ~SEC_COFF_NOREAD; + break; + case IMAGE_SCN_TYPE_NO_PAD: + /* Skip. */ + break; + case IMAGE_SCN_LNK_OTHER: + unhandled = "IMAGE_SCN_LNK_OTHER"; + break; + case IMAGE_SCN_MEM_NOT_CACHED: + unhandled = "IMAGE_SCN_MEM_NOT_CACHED"; + break; + case IMAGE_SCN_MEM_NOT_PAGED: + /* Generate a warning message rather using the 'unhandled' + variable as this will allow some .sys files generate by + other toolchains to be processed. See bugzilla issue 196. */ + _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"), + abfd, name); + break; + case IMAGE_SCN_MEM_EXECUTE: + sec_flags |= SEC_CODE; + break; + case IMAGE_SCN_MEM_WRITE: + sec_flags &= ~ SEC_READONLY; + break; + case IMAGE_SCN_MEM_DISCARDABLE: + /* The MS PE spec says that debug sections are DISCARDABLE, + but the presence of a DISCARDABLE flag does not necessarily + mean that a given section contains debug information. Thus + we only set the SEC_DEBUGGING flag on sections that we + recognise as containing debug information. */ + if (is_dbg +#ifdef _COMMENT + || strcmp (name, _COMMENT) == 0 +#endif + ) + { + sec_flags |= SEC_DEBUGGING | SEC_READONLY; + } + break; + case IMAGE_SCN_MEM_SHARED: + sec_flags |= SEC_COFF_SHARED; + break; + case IMAGE_SCN_LNK_REMOVE: + if (!is_dbg) + sec_flags |= SEC_EXCLUDE; + break; + case IMAGE_SCN_CNT_CODE: + sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD; + break; + case IMAGE_SCN_CNT_INITIALIZED_DATA: + if (is_dbg) + sec_flags |= SEC_DEBUGGING; + else + sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD; + break; + case IMAGE_SCN_CNT_UNINITIALIZED_DATA: + sec_flags |= SEC_ALLOC; + break; + case IMAGE_SCN_LNK_INFO: + /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is + defined. coff_compute_section_file_positions uses + COFF_PAGE_SIZE to ensure that the low order bits of the + section VMA and the file offset match. If we don't know + COFF_PAGE_SIZE, we can't ensure the correct correspondence, + and demand page loading of the file will fail. */ +#ifdef COFF_PAGE_SIZE + sec_flags |= SEC_DEBUGGING; +#endif + break; + case IMAGE_SCN_LNK_COMDAT: + /* COMDAT gets very special treatment. */ + sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section); + break; + default: + /* Silently ignore for now. */ + break; + } + + /* If the section flag was not handled, report it here. */ + if (unhandled != NULL) + { + (*_bfd_error_handler) + (_("%B (%s): Section flag %s (0x%x) ignored"), + abfd, name, unhandled, flag); + result = FALSE; + } + } + +#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE) + /* As a GNU extension, if the name begins with .gnu.linkonce, we + only link a single copy of the section. This is used to support + g++. g++ will emit each template expansion in its own section. + The symbols will be defined as weak, so that multiple definitions + are permitted. The GNU linker extension is to actually discard + all but one of the sections. */ + if (CONST_STRNEQ (name, ".gnu.linkonce")) + sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; +#endif + + if (flags_ptr) + * flags_ptr = sec_flags; + + return result; +} + +#endif /* COFF_WITH_PE */ + +#define get_index(symbol) ((symbol)->udata.i) + +/* +INTERNAL_DEFINITION + bfd_coff_backend_data + +CODE_FRAGMENT + +.{* COFF symbol classifications. *} +. +.enum coff_symbol_classification +.{ +. {* Global symbol. *} +. COFF_SYMBOL_GLOBAL, +. {* Common symbol. *} +. COFF_SYMBOL_COMMON, +. {* Undefined symbol. *} +. COFF_SYMBOL_UNDEFINED, +. {* Local symbol. *} +. COFF_SYMBOL_LOCAL, +. {* PE section symbol. *} +. COFF_SYMBOL_PE_SECTION +.}; +. +Special entry points for gdb to swap in coff symbol table parts: +.typedef struct +.{ +. void (*_bfd_coff_swap_aux_in) +. (bfd *, void *, int, int, int, int, void *); +. +. void (*_bfd_coff_swap_sym_in) +. (bfd *, void *, void *); +. +. void (*_bfd_coff_swap_lineno_in) +. (bfd *, void *, void *); +. +. unsigned int (*_bfd_coff_swap_aux_out) +. (bfd *, void *, int, int, int, int, void *); +. +. unsigned int (*_bfd_coff_swap_sym_out) +. (bfd *, void *, void *); +. +. unsigned int (*_bfd_coff_swap_lineno_out) +. (bfd *, void *, void *); +. +. unsigned int (*_bfd_coff_swap_reloc_out) +. (bfd *, void *, void *); +. +. unsigned int (*_bfd_coff_swap_filehdr_out) +. (bfd *, void *, void *); +. +. unsigned int (*_bfd_coff_swap_aouthdr_out) +. (bfd *, void *, void *); +. +. unsigned int (*_bfd_coff_swap_scnhdr_out) +. (bfd *, void *, void *); +. +. unsigned int _bfd_filhsz; +. unsigned int _bfd_aoutsz; +. unsigned int _bfd_scnhsz; +. unsigned int _bfd_symesz; +. unsigned int _bfd_auxesz; +. unsigned int _bfd_relsz; +. unsigned int _bfd_linesz; +. unsigned int _bfd_filnmlen; +. bfd_boolean _bfd_coff_long_filenames; +. +. bfd_boolean _bfd_coff_long_section_names; +. bfd_boolean (*_bfd_coff_set_long_section_names) +. (bfd *, int); +. +. unsigned int _bfd_coff_default_section_alignment_power; +. bfd_boolean _bfd_coff_force_symnames_in_strings; +. unsigned int _bfd_coff_debug_string_prefix_length; +. unsigned int _bfd_coff_max_nscns; +. +. void (*_bfd_coff_swap_filehdr_in) +. (bfd *, void *, void *); +. +. void (*_bfd_coff_swap_aouthdr_in) +. (bfd *, void *, void *); +. +. void (*_bfd_coff_swap_scnhdr_in) +. (bfd *, void *, void *); +. +. void (*_bfd_coff_swap_reloc_in) +. (bfd *abfd, void *, void *); +. +. bfd_boolean (*_bfd_coff_bad_format_hook) +. (bfd *, void *); +. +. bfd_boolean (*_bfd_coff_set_arch_mach_hook) +. (bfd *, void *); +. +. void * (*_bfd_coff_mkobject_hook) +. (bfd *, void *, void *); +. +. bfd_boolean (*_bfd_styp_to_sec_flags_hook) +. (bfd *, void *, const char *, asection *, flagword *); +. +. void (*_bfd_set_alignment_hook) +. (bfd *, asection *, void *); +. +. bfd_boolean (*_bfd_coff_slurp_symbol_table) +. (bfd *); +. +. bfd_boolean (*_bfd_coff_symname_in_debug) +. (bfd *, struct internal_syment *); +. +. bfd_boolean (*_bfd_coff_pointerize_aux_hook) +. (bfd *, combined_entry_type *, combined_entry_type *, +. unsigned int, combined_entry_type *); +. +. bfd_boolean (*_bfd_coff_print_aux) +. (bfd *, FILE *, combined_entry_type *, combined_entry_type *, +. combined_entry_type *, unsigned int); +. +. void (*_bfd_coff_reloc16_extra_cases) +. (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, +. bfd_byte *, unsigned int *, unsigned int *); +. +. int (*_bfd_coff_reloc16_estimate) +. (bfd *, asection *, arelent *, unsigned int, +. struct bfd_link_info *); +. +. enum coff_symbol_classification (*_bfd_coff_classify_symbol) +. (bfd *, struct internal_syment *); +. +. bfd_boolean (*_bfd_coff_compute_section_file_positions) +. (bfd *); +. +. bfd_boolean (*_bfd_coff_start_final_link) +. (bfd *, struct bfd_link_info *); +. +. bfd_boolean (*_bfd_coff_relocate_section) +. (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, +. struct internal_reloc *, struct internal_syment *, asection **); +. +. reloc_howto_type *(*_bfd_coff_rtype_to_howto) +. (bfd *, asection *, struct internal_reloc *, +. struct coff_link_hash_entry *, struct internal_syment *, +. bfd_vma *); +. +. bfd_boolean (*_bfd_coff_adjust_symndx) +. (bfd *, struct bfd_link_info *, bfd *, asection *, +. struct internal_reloc *, bfd_boolean *); +. +. bfd_boolean (*_bfd_coff_link_add_one_symbol) +. (struct bfd_link_info *, bfd *, const char *, flagword, +. asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, +. struct bfd_link_hash_entry **); +. +. bfd_boolean (*_bfd_coff_link_output_has_begun) +. (bfd *, struct coff_final_link_info *); +. +. bfd_boolean (*_bfd_coff_final_link_postscript) +. (bfd *, struct coff_final_link_info *); +. +. bfd_boolean (*_bfd_coff_print_pdata) +. (bfd *, void *); +. +.} bfd_coff_backend_data; +. +.#define coff_backend_info(abfd) \ +. ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) +. +.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ +. ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) +. +.#define bfd_coff_swap_sym_in(a,e,i) \ +. ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) +. +.#define bfd_coff_swap_lineno_in(a,e,i) \ +. ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) +. +.#define bfd_coff_swap_reloc_out(abfd, i, o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) +. +.#define bfd_coff_swap_lineno_out(abfd, i, o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) +. +.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ +. ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) +. +.#define bfd_coff_swap_sym_out(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) +. +.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) +. +.#define bfd_coff_swap_filehdr_out(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) +. +.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) +. +.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) +.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) +.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) +.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) +.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) +.#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) +.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) +.#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) +.#define bfd_coff_long_filenames(abfd) \ +. (coff_backend_info (abfd)->_bfd_coff_long_filenames) +.#define bfd_coff_long_section_names(abfd) \ +. (coff_backend_info (abfd)->_bfd_coff_long_section_names) +.#define bfd_coff_set_long_section_names(abfd, enable) \ +. ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable)) +.#define bfd_coff_default_section_alignment_power(abfd) \ +. (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) +.#define bfd_coff_max_nscns(abfd) \ +. (coff_backend_info (abfd)->_bfd_coff_max_nscns) +. +.#define bfd_coff_swap_filehdr_in(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) +. +.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) +. +.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) +. +.#define bfd_coff_swap_reloc_in(abfd, i, o) \ +. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) +. +.#define bfd_coff_bad_format_hook(abfd, filehdr) \ +. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) +. +.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ +. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) +.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ +. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\ +. (abfd, filehdr, aouthdr)) +. +.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\ +. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ +. (abfd, scnhdr, name, section, flags_ptr)) +. +.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ +. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) +. +.#define bfd_coff_slurp_symbol_table(abfd)\ +. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) +. +.#define bfd_coff_symname_in_debug(abfd, sym)\ +. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) +. +.#define bfd_coff_force_symnames_in_strings(abfd)\ +. (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings) +. +.#define bfd_coff_debug_string_prefix_length(abfd)\ +. (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length) +. +.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ +. ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ +. (abfd, file, base, symbol, aux, indaux)) +. +.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\ +. reloc, data, src_ptr, dst_ptr)\ +. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ +. (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) +. +.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ +. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ +. (abfd, section, reloc, shrink, link_info)) +. +.#define bfd_coff_classify_symbol(abfd, sym)\ +. ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ +. (abfd, sym)) +. +.#define bfd_coff_compute_section_file_positions(abfd)\ +. ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ +. (abfd)) +. +.#define bfd_coff_start_final_link(obfd, info)\ +. ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ +. (obfd, info)) +.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ +. ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ +. (obfd, info, ibfd, o, con, rel, isyms, secs)) +.#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ +. ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ +. (abfd, sec, rel, h, sym, addendp)) +.#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ +. ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ +. (obfd, info, ibfd, sec, rel, adjustedp)) +.#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\ +. value, string, cp, coll, hashp)\ +. ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ +. (info, abfd, name, flags, section, value, string, cp, coll, hashp)) +. +.#define bfd_coff_link_output_has_begun(a,p) \ +. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p)) +.#define bfd_coff_final_link_postscript(a,p) \ +. ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p)) +. +.#define bfd_coff_have_print_pdata(a) \ +. (coff_backend_info (a)->_bfd_coff_print_pdata) +.#define bfd_coff_print_pdata(a,p) \ +. ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p)) +. +.{* Macro: Returns true if the bfd is a PE executable as opposed to a +. PE object file. *} +.#define bfd_pei_p(abfd) \ +. (CONST_STRNEQ ((abfd)->xvec->name, "pei-")) +*/ + +/* See whether the magic number matches. */ + +static bfd_boolean +coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr) +{ + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; + + if (BADMAG (*internal_f)) + return FALSE; + + /* If the optional header is NULL or not the correct size then + quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) + and Intel 960 readwrite headers (I960WRMAGIC) is that the + optional header is of a different size. + + But the mips keeps extra stuff in it's opthdr, so dont check + when doing that. */ + +#if defined(M88) || defined(I960) + if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr) + return FALSE; +#endif + + return TRUE; +} + +#ifdef TICOFF +static bfd_boolean +ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr) +{ + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; + + if (COFF0_BADMAG (*internal_f)) + return FALSE; + + return TRUE; +} +#endif + +#ifdef TICOFF +static bfd_boolean +ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr) +{ + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; + + if (COFF1_BADMAG (*internal_f)) + return FALSE; + + return TRUE; +} +#endif + +/* Check whether this section uses an alignment other than the + default. */ + +static void +coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED, + asection *section, + const struct coff_section_alignment_entry *alignment_table, + const unsigned int table_size) +{ + const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; + unsigned int i; + + for (i = 0; i < table_size; ++i) + { + const char *secname = bfd_get_section_name (abfd, section); + + if (alignment_table[i].comparison_length == (unsigned int) -1 + ? strcmp (alignment_table[i].name, secname) == 0 + : strncmp (alignment_table[i].name, secname, + alignment_table[i].comparison_length) == 0) + break; + } + if (i >= table_size) + return; + + if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY + && default_alignment < alignment_table[i].default_alignment_min) + return; + + if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY +#if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0 + && default_alignment > alignment_table[i].default_alignment_max +#endif + ) + return; + + section->alignment_power = alignment_table[i].alignment_power; +} + +/* Custom section alignment records. */ + +static const struct coff_section_alignment_entry +coff_section_alignment_table[] = +{ +#ifdef COFF_SECTION_ALIGNMENT_ENTRIES + COFF_SECTION_ALIGNMENT_ENTRIES, +#endif + /* There must not be any gaps between .stabstr sections. */ + { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"), + 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, + /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */ + { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"), + 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, + /* Similarly for the .ctors and .dtors sections. */ + { COFF_SECTION_NAME_EXACT_MATCH (".ctors"), + 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, + { COFF_SECTION_NAME_EXACT_MATCH (".dtors"), + 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 } +}; + +static const unsigned int coff_section_alignment_table_size = + sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0]; + +/* Initialize a section structure with information peculiar to this + particular implementation of COFF. */ + +static bfd_boolean +coff_new_section_hook (bfd * abfd, asection * section) +{ + combined_entry_type *native; + bfd_size_type amt; + unsigned char sclass = C_STAT; + + section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER; + +#ifdef RS6000COFF_C + if (bfd_xcoff_text_align_power (abfd) != 0 + && strcmp (bfd_get_section_name (abfd, section), ".text") == 0) + section->alignment_power = bfd_xcoff_text_align_power (abfd); + else if (bfd_xcoff_data_align_power (abfd) != 0 + && strcmp (bfd_get_section_name (abfd, section), ".data") == 0) + section->alignment_power = bfd_xcoff_data_align_power (abfd); + else + { + int i; + + for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++) + if (strcmp (bfd_get_section_name (abfd, section), + xcoff_dwsect_names[i].name) == 0) + { + section->alignment_power = 0; + sclass = C_DWARF; + break; + } + } +#endif + + /* Set up the section symbol. */ + if (!_bfd_generic_new_section_hook (abfd, section)) + return FALSE; + + /* Allocate aux records for section symbols, to store size and + related info. + + @@ The 10 is a guess at a plausible maximum number of aux entries + (but shouldn't be a constant). */ + amt = sizeof (combined_entry_type) * 10; + native = (combined_entry_type *) bfd_zalloc (abfd, amt); + if (native == NULL) + return FALSE; + + /* We don't need to set up n_name, n_value, or n_scnum in the native + symbol information, since they'll be overridden by the BFD symbol + anyhow. However, we do need to set the type and storage class, + in case this symbol winds up getting written out. The value 0 + for n_numaux is already correct. */ + + native->is_sym = TRUE; + native->u.syment.n_type = T_NULL; + native->u.syment.n_sclass = sclass; + + coffsymbol (section->symbol)->native = native; + + coff_set_custom_section_alignment (abfd, section, + coff_section_alignment_table, + coff_section_alignment_table_size); + + return TRUE; +} + +#ifdef COFF_ALIGN_IN_SECTION_HEADER + +/* Set the alignment of a BFD section. */ + +static void +coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED, + asection * section, + void * scnhdr) +{ + struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; + unsigned int i; + +#ifdef I960 + /* Extract ALIGN from 2**ALIGN stored in section header. */ + for (i = 0; i < 32; i++) + if ((1 << i) >= hdr->s_align) + break; +#endif +#ifdef TIC80COFF + /* TI tools puts the alignment power in bits 8-11. */ + i = (hdr->s_flags >> 8) & 0xF ; +#endif +#ifdef COFF_DECODE_ALIGNMENT + i = COFF_DECODE_ALIGNMENT(hdr->s_flags); +#endif + section->alignment_power = i; + +#ifdef coff_set_section_load_page + coff_set_section_load_page (section, hdr->s_page); +#endif +} + +#else /* ! COFF_ALIGN_IN_SECTION_HEADER */ +#ifdef COFF_WITH_PE + +static void +coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED, + asection * section, + void * scnhdr) +{ + struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; + bfd_size_type amt; + unsigned int alignment_power_const + = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK; + + switch (alignment_power_const) + { + case IMAGE_SCN_ALIGN_8192BYTES: + case IMAGE_SCN_ALIGN_4096BYTES: + case IMAGE_SCN_ALIGN_2048BYTES: + case IMAGE_SCN_ALIGN_1024BYTES: + case IMAGE_SCN_ALIGN_512BYTES: + case IMAGE_SCN_ALIGN_256BYTES: + case IMAGE_SCN_ALIGN_128BYTES: + case IMAGE_SCN_ALIGN_64BYTES: + case IMAGE_SCN_ALIGN_32BYTES: + case IMAGE_SCN_ALIGN_16BYTES: + case IMAGE_SCN_ALIGN_8BYTES: + case IMAGE_SCN_ALIGN_4BYTES: + case IMAGE_SCN_ALIGN_2BYTES: + case IMAGE_SCN_ALIGN_1BYTES: + section->alignment_power + = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const); + break; + default: + break; + } + + /* In a PE image file, the s_paddr field holds the virtual size of a + section, while the s_size field holds the raw size. We also keep + the original section flag value, since not every bit can be + mapped onto a generic BFD section bit. */ + if (coff_section_data (abfd, section) == NULL) + { + amt = sizeof (struct coff_section_tdata); + section->used_by_bfd = bfd_zalloc (abfd, amt); + if (section->used_by_bfd == NULL) + /* FIXME: Return error. */ + abort (); + } + + if (pei_section_data (abfd, section) == NULL) + { + amt = sizeof (struct pei_section_tdata); + coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt); + if (coff_section_data (abfd, section)->tdata == NULL) + /* FIXME: Return error. */ + abort (); + } + pei_section_data (abfd, section)->virt_size = hdr->s_paddr; + pei_section_data (abfd, section)->pe_flags = hdr->s_flags; + + section->lma = hdr->s_vaddr; + + /* Check for extended relocs. */ + if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL) + { + struct external_reloc dst; + struct internal_reloc n; + file_ptr oldpos = bfd_tell (abfd); + bfd_size_type relsz = bfd_coff_relsz (abfd); + + if (bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0) != 0) + return; + if (bfd_bread (& dst, relsz, abfd) != relsz) + return; + + coff_swap_reloc_in (abfd, &dst, &n); + if (bfd_seek (abfd, oldpos, 0) != 0) + return; + section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1; + section->rel_filepos += relsz; + } + else if (hdr->s_nreloc == 0xffff) + (*_bfd_error_handler) + ("%s: warning: claims to have 0xffff relocs, without overflow", + bfd_get_filename (abfd)); +} +#undef ALIGN_SET +#undef ELIFALIGN_SET + +#else /* ! COFF_WITH_PE */ +#ifdef RS6000COFF_C + +/* We grossly abuse this function to handle XCOFF overflow headers. + When we see one, we correct the reloc and line number counts in the + real header, and remove the section we just created. */ + +static void +coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr) +{ + struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr; + asection *real_sec; + + if ((hdr->s_flags & STYP_OVRFLO) == 0) + return; + + real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc); + if (real_sec == NULL) + return; + + real_sec->reloc_count = hdr->s_paddr; + real_sec->lineno_count = hdr->s_vaddr; + + if (!bfd_section_removed_from_list (abfd, section)) + { + bfd_section_list_remove (abfd, section); + --abfd->section_count; + } +} + +#else /* ! RS6000COFF_C */ + +#define coff_set_alignment_hook \ + ((void (*) (bfd *, asection *, void *)) bfd_void) + +#endif /* ! RS6000COFF_C */ +#endif /* ! COFF_WITH_PE */ +#endif /* ! COFF_ALIGN_IN_SECTION_HEADER */ + +#ifndef coff_mkobject + +static bfd_boolean +coff_mkobject (bfd * abfd) +{ + coff_data_type *coff; + bfd_size_type amt = sizeof (coff_data_type); + + abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt); + if (abfd->tdata.coff_obj_data == NULL) + return FALSE; + coff = coff_data (abfd); + coff->symbols = NULL; + coff->conversion_table = NULL; + coff->raw_syments = NULL; + coff->relocbase = 0; + coff->local_toc_sym_map = 0; + +/* make_abs_section(abfd);*/ + + return TRUE; +} +#endif + +/* Create the COFF backend specific information. */ + +#ifndef coff_mkobject_hook +static void * +coff_mkobject_hook (bfd * abfd, + void * filehdr, + void * aouthdr ATTRIBUTE_UNUSED) +{ + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; + coff_data_type *coff; + + if (! coff_mkobject (abfd)) + return NULL; + + coff = coff_data (abfd); + + coff->sym_filepos = internal_f->f_symptr; + + /* These members communicate important constants about the symbol + table to GDB's symbol-reading code. These `constants' + unfortunately vary among coff implementations... */ + coff->local_n_btmask = N_BTMASK; + coff->local_n_btshft = N_BTSHFT; + coff->local_n_tmask = N_TMASK; + coff->local_n_tshift = N_TSHIFT; + coff->local_symesz = bfd_coff_symesz (abfd); + coff->local_auxesz = bfd_coff_auxesz (abfd); + coff->local_linesz = bfd_coff_linesz (abfd); + + coff->timestamp = internal_f->f_timdat; + + obj_raw_syment_count (abfd) = + obj_conv_table_size (abfd) = + internal_f->f_nsyms; + +#ifdef RS6000COFF_C + if ((internal_f->f_flags & F_SHROBJ) != 0) + abfd->flags |= DYNAMIC; + if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd)) + { + struct internal_aouthdr *internal_a = + (struct internal_aouthdr *) aouthdr; + struct xcoff_tdata *xcoff; + + xcoff = xcoff_data (abfd); +# ifdef U803XTOCMAGIC + xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC; +# else + xcoff->xcoff64 = 0; +# endif + xcoff->full_aouthdr = TRUE; + xcoff->toc = internal_a->o_toc; + xcoff->sntoc = internal_a->o_sntoc; + xcoff->snentry = internal_a->o_snentry; + bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext; + bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata; + xcoff->modtype = internal_a->o_modtype; + xcoff->cputype = internal_a->o_cputype; + xcoff->maxdata = internal_a->o_maxdata; + xcoff->maxstack = internal_a->o_maxstack; + } +#endif + +#ifdef ARM + /* Set the flags field from the COFF header read in. */ + if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) + coff->flags = 0; +#endif + +#ifdef COFF_WITH_PE + /* FIXME: I'm not sure this is ever executed, since peicode.h + defines coff_mkobject_hook. */ + if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) + abfd->flags |= HAS_DEBUG; +#endif + + if ((internal_f->f_flags & F_GO32STUB) != 0) + coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE); + if (coff->go32stub != NULL) + memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE); + + return coff; +} +#endif + +/* Determine the machine architecture and type. FIXME: This is target + dependent because the magic numbers are defined in the target + dependent header files. But there is no particular need for this. + If the magic numbers were moved to a separate file, this function + would be target independent and would also be much more successful + at linking together COFF files for different architectures. */ + +static bfd_boolean +coff_set_arch_mach_hook (bfd *abfd, void * filehdr) +{ + unsigned long machine; + enum bfd_architecture arch; + struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; + + /* Zero selects the default machine for an arch. */ + machine = 0; + switch (internal_f->f_magic) + { +#ifdef PPCMAGIC + case PPCMAGIC: + arch = bfd_arch_powerpc; + break; +#endif +#ifdef I386MAGIC + case I386MAGIC: + case I386PTXMAGIC: + case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */ + case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */ + arch = bfd_arch_i386; + break; +#endif +#ifdef AMD64MAGIC + case AMD64MAGIC: + arch = bfd_arch_i386; + machine = bfd_mach_x86_64; + break; +#endif +#ifdef IA64MAGIC + case IA64MAGIC: + arch = bfd_arch_ia64; + break; +#endif +#ifdef ARMMAGIC + case ARMMAGIC: + case ARMPEMAGIC: + case THUMBPEMAGIC: + arch = bfd_arch_arm; + machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION); + if (machine == bfd_mach_arm_unknown) + { + switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK) + { + case F_ARM_2: machine = bfd_mach_arm_2; break; + case F_ARM_2a: machine = bfd_mach_arm_2a; break; + case F_ARM_3: machine = bfd_mach_arm_3; break; + default: + case F_ARM_3M: machine = bfd_mach_arm_3M; break; + case F_ARM_4: machine = bfd_mach_arm_4; break; + case F_ARM_4T: machine = bfd_mach_arm_4T; break; + /* The COFF header does not have enough bits available + to cover all the different ARM architectures. So + we interpret F_ARM_5, the highest flag value to mean + "the highest ARM architecture known to BFD" which is + currently the XScale. */ + case F_ARM_5: machine = bfd_mach_arm_XScale; break; + } + } + break; +#endif +#ifdef MC68MAGIC + case MC68MAGIC: + case M68MAGIC: +#ifdef MC68KBCSMAGIC + case MC68KBCSMAGIC: +#endif +#ifdef APOLLOM68KMAGIC + case APOLLOM68KMAGIC: +#endif +#ifdef LYNXCOFFMAGIC + case LYNXCOFFMAGIC: +#endif + arch = bfd_arch_m68k; + machine = bfd_mach_m68020; + break; +#endif +#ifdef MC88MAGIC + case MC88MAGIC: + case MC88DMAGIC: + case MC88OMAGIC: + arch = bfd_arch_m88k; + machine = 88100; + break; +#endif +#ifdef Z80MAGIC + case Z80MAGIC: + arch = bfd_arch_z80; + switch (internal_f->f_flags & F_MACHMASK) + { + case 0: + case bfd_mach_z80strict << 12: + case bfd_mach_z80 << 12: + case bfd_mach_z80full << 12: + case bfd_mach_r800 << 12: + machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12; + break; + default: + return FALSE; + } + break; +#endif +#ifdef Z8KMAGIC + case Z8KMAGIC: + arch = bfd_arch_z8k; + switch (internal_f->f_flags & F_MACHMASK) + { + case F_Z8001: + machine = bfd_mach_z8001; + break; + case F_Z8002: + machine = bfd_mach_z8002; + break; + default: + return FALSE; + } + break; +#endif +#ifdef I860 + case I860MAGIC: + arch = bfd_arch_i860; + break; +#endif +#ifdef I960 +#ifdef I960ROMAGIC + case I960ROMAGIC: + case I960RWMAGIC: + arch = bfd_arch_i960; + switch (F_I960TYPE & internal_f->f_flags) + { + default: + case F_I960CORE: + machine = bfd_mach_i960_core; + break; + case F_I960KB: + machine = bfd_mach_i960_kb_sb; + break; + case F_I960MC: + machine = bfd_mach_i960_mc; + break; + case F_I960XA: + machine = bfd_mach_i960_xa; + break; + case F_I960CA: + machine = bfd_mach_i960_ca; + break; + case F_I960KA: + machine = bfd_mach_i960_ka_sa; + break; + case F_I960JX: + machine = bfd_mach_i960_jx; + break; + case F_I960HX: + machine = bfd_mach_i960_hx; + break; + } + break; +#endif +#endif + +#ifdef RS6000COFF_C +#ifdef XCOFF64 + case U64_TOCMAGIC: + case U803XTOCMAGIC: +#else + case U802ROMAGIC: + case U802WRMAGIC: + case U802TOCMAGIC: +#endif + { + int cputype; + + if (xcoff_data (abfd)->cputype != -1) + cputype = xcoff_data (abfd)->cputype & 0xff; + else + { + /* We did not get a value from the a.out header. If the + file has not been stripped, we may be able to get the + architecture information from the first symbol, if it + is a .file symbol. */ + if (obj_raw_syment_count (abfd) == 0) + cputype = 0; + else + { + bfd_byte *buf; + struct internal_syment sym; + bfd_size_type amt = bfd_coff_symesz (abfd); + + buf = bfd_malloc (amt); + if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 + || bfd_bread (buf, amt, abfd) != amt) + { + free (buf); + return FALSE; + } + bfd_coff_swap_sym_in (abfd, buf, & sym); + if (sym.n_sclass == C_FILE) + cputype = sym.n_type & 0xff; + else + cputype = 0; + free (buf); + } + } + + /* FIXME: We don't handle all cases here. */ + switch (cputype) + { + default: + case 0: + arch = bfd_xcoff_architecture (abfd); + machine = bfd_xcoff_machine (abfd); + break; + + case 1: + arch = bfd_arch_powerpc; + machine = bfd_mach_ppc_601; + break; + case 2: /* 64 bit PowerPC */ + arch = bfd_arch_powerpc; + machine = bfd_mach_ppc_620; + break; + case 3: + arch = bfd_arch_powerpc; + machine = bfd_mach_ppc; + break; + case 4: + arch = bfd_arch_rs6000; + machine = bfd_mach_rs6k; + break; + } + } + break; +#endif + +#ifdef WE32KMAGIC + case WE32KMAGIC: + arch = bfd_arch_we32k; + break; +#endif + +#ifdef H8300MAGIC + case H8300MAGIC: + arch = bfd_arch_h8300; + machine = bfd_mach_h8300; + /* !! FIXME this probably isn't the right place for this. */ + abfd->flags |= BFD_IS_RELAXABLE; + break; +#endif + +#ifdef H8300HMAGIC + case H8300HMAGIC: + arch = bfd_arch_h8300; + machine = bfd_mach_h8300h; + /* !! FIXME this probably isn't the right place for this. */ + abfd->flags |= BFD_IS_RELAXABLE; + break; +#endif + +#ifdef H8300SMAGIC + case H8300SMAGIC: + arch = bfd_arch_h8300; + machine = bfd_mach_h8300s; + /* !! FIXME this probably isn't the right place for this. */ + abfd->flags |= BFD_IS_RELAXABLE; + break; +#endif + +#ifdef H8300HNMAGIC + case H8300HNMAGIC: + arch = bfd_arch_h8300; + machine = bfd_mach_h8300hn; + /* !! FIXME this probably isn't the right place for this. */ + abfd->flags |= BFD_IS_RELAXABLE; + break; +#endif + +#ifdef H8300SNMAGIC + case H8300SNMAGIC: + arch = bfd_arch_h8300; + machine = bfd_mach_h8300sn; + /* !! FIXME this probably isn't the right place for this. */ + abfd->flags |= BFD_IS_RELAXABLE; + break; +#endif + +#ifdef SH_ARCH_MAGIC_BIG + case SH_ARCH_MAGIC_BIG: + case SH_ARCH_MAGIC_LITTLE: +#ifdef COFF_WITH_PE + case SH_ARCH_MAGIC_WINCE: +#endif + arch = bfd_arch_sh; + break; +#endif + +#ifdef MIPS_ARCH_MAGIC_WINCE + case MIPS_ARCH_MAGIC_WINCE: + arch = bfd_arch_mips; + break; +#endif + +#ifdef H8500MAGIC + case H8500MAGIC: + arch = bfd_arch_h8500; + break; +#endif + +#ifdef SPARCMAGIC + case SPARCMAGIC: +#ifdef LYNXCOFFMAGIC + case LYNXCOFFMAGIC: +#endif + arch = bfd_arch_sparc; + break; +#endif + +#ifdef TIC30MAGIC + case TIC30MAGIC: + arch = bfd_arch_tic30; + break; +#endif + +#ifdef TICOFF0MAGIC +#ifdef TICOFF_TARGET_ARCH + /* This TI COFF section should be used by all new TI COFF v0 targets. */ + case TICOFF0MAGIC: + arch = TICOFF_TARGET_ARCH; + machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags); + break; +#endif +#endif + +#ifdef TICOFF1MAGIC + /* This TI COFF section should be used by all new TI COFF v1/2 targets. */ + /* TI COFF1 and COFF2 use the target_id field to specify which arch. */ + case TICOFF1MAGIC: + case TICOFF2MAGIC: + switch (internal_f->f_target_id) + { +#ifdef TI_TARGET_ID + case TI_TARGET_ID: + arch = TICOFF_TARGET_ARCH; + machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags); + break; +#endif + default: + arch = bfd_arch_obscure; + (*_bfd_error_handler) + (_("Unrecognized TI COFF target id '0x%x'"), + internal_f->f_target_id); + break; + } + break; +#endif + +#ifdef TIC80_ARCH_MAGIC + case TIC80_ARCH_MAGIC: + arch = bfd_arch_tic80; + break; +#endif + +#ifdef MCOREMAGIC + case MCOREMAGIC: + arch = bfd_arch_mcore; + break; +#endif + +#ifdef W65MAGIC + case W65MAGIC: + arch = bfd_arch_w65; + break; +#endif + + default: /* Unreadable input file type. */ + arch = bfd_arch_obscure; + break; + } + + bfd_default_set_arch_mach (abfd, arch, machine); + return TRUE; +} + +#ifdef SYMNAME_IN_DEBUG + +static bfd_boolean +symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym) +{ + return SYMNAME_IN_DEBUG (sym) != 0; +} + +#else + +#define symname_in_debug_hook \ + (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false + +#endif + +#ifdef RS6000COFF_C + +#ifdef XCOFF64 +#define FORCE_SYMNAMES_IN_STRINGS +#endif + +/* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */ + +static bfd_boolean +coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED, + combined_entry_type *table_base, + combined_entry_type *symbol, + unsigned int indaux, + combined_entry_type *aux) +{ + BFD_ASSERT (symbol->is_sym); + int n_sclass = symbol->u.syment.n_sclass; + + if (CSECT_SYM_P (n_sclass) + && indaux + 1 == symbol->u.syment.n_numaux) + { + BFD_ASSERT (! aux->is_sym); + if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD) + { + aux->u.auxent.x_csect.x_scnlen.p = + table_base + aux->u.auxent.x_csect.x_scnlen.l; + aux->fix_scnlen = 1; + } + + /* Return TRUE to indicate that the caller should not do any + further work on this auxent. */ + return TRUE; + } + + /* Return FALSE to indicate that this auxent should be handled by + the caller. */ + return FALSE; +} + +#else +#ifdef I960 + +/* We don't want to pointerize bal entries. */ + +static bfd_boolean +coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED, + combined_entry_type *table_base ATTRIBUTE_UNUSED, + combined_entry_type *symbol, + unsigned int indaux, + combined_entry_type *aux ATTRIBUTE_UNUSED) +{ + /* Return TRUE if we don't want to pointerize this aux entry, which + is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */ + return (indaux == 1 + && symbol->is_sym + && (symbol->u.syment.n_sclass == C_LEAFPROC + || symbol->u.syment.n_sclass == C_LEAFSTAT + || symbol->u.syment.n_sclass == C_LEAFEXT)); +} + +#else /* ! I960 */ + +#define coff_pointerize_aux_hook 0 + +#endif /* ! I960 */ +#endif /* ! RS6000COFF_C */ + +/* Print an aux entry. This returns TRUE if it has printed it. */ + +static bfd_boolean +coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED, + FILE *file ATTRIBUTE_UNUSED, + combined_entry_type *table_base ATTRIBUTE_UNUSED, + combined_entry_type *symbol ATTRIBUTE_UNUSED, + combined_entry_type *aux ATTRIBUTE_UNUSED, + unsigned int indaux ATTRIBUTE_UNUSED) +{ + BFD_ASSERT (symbol->is_sym); + BFD_ASSERT (! aux->is_sym); +#ifdef RS6000COFF_C + if (CSECT_SYM_P (symbol->u.syment.n_sclass) + && indaux + 1 == symbol->u.syment.n_numaux) + { + /* This is a csect entry. */ + fprintf (file, "AUX "); + if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD) + { + BFD_ASSERT (! aux->fix_scnlen); +#ifdef XCOFF64 + fprintf (file, "val %5lld", + (long long) aux->u.auxent.x_csect.x_scnlen.l); +#else + fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l); +#endif + } + else + { + fprintf (file, "indx "); + if (! aux->fix_scnlen) +#ifdef XCOFF64 + fprintf (file, "%4lld", + (long long) aux->u.auxent.x_csect.x_scnlen.l); +#else + fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l); +#endif + else + fprintf (file, "%4ld", + (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base)); + } + fprintf (file, + " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u", + aux->u.auxent.x_csect.x_parmhash, + (unsigned int) aux->u.auxent.x_csect.x_snhash, + SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp), + SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp), + (unsigned int) aux->u.auxent.x_csect.x_smclas, + aux->u.auxent.x_csect.x_stab, + (unsigned int) aux->u.auxent.x_csect.x_snstab); + return TRUE; + } +#endif + + /* Return FALSE to indicate that no special action was taken. */ + return FALSE; +} + +/* +SUBSUBSECTION + Writing relocations + + To write relocations, the back end steps though the + canonical relocation table and create an + @code{internal_reloc}. The symbol index to use is removed from + the @code{offset} field in the symbol table supplied. The + address comes directly from the sum of the section base + address and the relocation offset; the type is dug directly + from the howto field. Then the @code{internal_reloc} is + swapped into the shape of an @code{external_reloc} and written + out to disk. + +*/ + +#ifdef TARG_AUX + + +/* AUX's ld wants relocations to be sorted. */ +static int +compare_arelent_ptr (const void * x, const void * y) +{ + const arelent **a = (const arelent **) x; + const arelent **b = (const arelent **) y; + bfd_size_type aadr = (*a)->address; + bfd_size_type badr = (*b)->address; + + return (aadr < badr ? -1 : badr < aadr ? 1 : 0); +} + +#endif /* TARG_AUX */ + +static bfd_boolean +coff_write_relocs (bfd * abfd, int first_undef) +{ + asection *s; + + for (s = abfd->sections; s != NULL; s = s->next) + { + unsigned int i; + struct external_reloc dst; + arelent **p; + +#ifndef TARG_AUX + p = s->orelocation; +#else + { + /* Sort relocations before we write them out. */ + bfd_size_type amt; + + amt = s->reloc_count; + amt *= sizeof (arelent *); + p = bfd_malloc (amt); + if (p == NULL && s->reloc_count > 0) + return FALSE; + memcpy (p, s->orelocation, (size_t) amt); + qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr); + } +#endif + + if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0) + return FALSE; + +#ifdef COFF_WITH_PE + if (obj_pe (abfd) && s->reloc_count >= 0xffff) + { + /* Encode real count here as first reloc. */ + struct internal_reloc n; + + memset (& n, 0, sizeof (n)); + /* Add one to count *this* reloc (grr). */ + n.r_vaddr = s->reloc_count + 1; + coff_swap_reloc_out (abfd, &n, &dst); + if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd), + abfd) != bfd_coff_relsz (abfd)) + return FALSE; + } +#endif + + for (i = 0; i < s->reloc_count; i++) + { + struct internal_reloc n; + arelent *q = p[i]; + + memset (& n, 0, sizeof (n)); + + /* Now we've renumbered the symbols we know where the + undefined symbols live in the table. Check the reloc + entries for symbols who's output bfd isn't the right one. + This is because the symbol was undefined (which means + that all the pointers are never made to point to the same + place). This is a bad thing,'cause the symbols attached + to the output bfd are indexed, so that the relocation + entries know which symbol index they point to. So we + have to look up the output symbol here. */ + + if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd) + { + int j; + const char *sname = q->sym_ptr_ptr[0]->name; + asymbol **outsyms = abfd->outsymbols; + + for (j = first_undef; outsyms[j]; j++) + { + const char *intable = outsyms[j]->name; + + if (strcmp (intable, sname) == 0) + { + /* Got a hit, so repoint the reloc. */ + q->sym_ptr_ptr = outsyms + j; + break; + } + } + } + + n.r_vaddr = q->address + s->vma; + +#ifdef R_IHCONST + /* The 29k const/consth reloc pair is a real kludge. The consth + part doesn't have a symbol; it has an offset. So rebuilt + that here. */ + if (q->howto->type == R_IHCONST) + n.r_symndx = q->addend; + else +#endif + if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL) + { +#ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P + if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s)) +#else + if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr + && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0) +#endif + /* This is a relocation relative to the absolute symbol. */ + n.r_symndx = -1; + else + { + n.r_symndx = get_index ((*(q->sym_ptr_ptr))); + /* Check to see if the symbol reloc points to a symbol + we don't have in our symbol table. */ + if (n.r_symndx > obj_conv_table_size (abfd)) + { + bfd_set_error (bfd_error_bad_value); + _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"), + abfd, n.r_symndx); + return FALSE; + } + } + } + +#ifdef SWAP_OUT_RELOC_OFFSET + n.r_offset = q->addend; +#endif + +#ifdef SELECT_RELOC + /* Work out reloc type from what is required. */ + SELECT_RELOC (n, q->howto); +#else + n.r_type = q->howto->type; +#endif + coff_swap_reloc_out (abfd, &n, &dst); + + if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd), + abfd) != bfd_coff_relsz (abfd)) + return FALSE; + } + +#ifdef TARG_AUX + if (p != NULL) + free (p); +#endif + } + + return TRUE; +} + +/* Set flags and magic number of a coff file from architecture and machine + type. Result is TRUE if we can represent the arch&type, FALSE if not. */ + +static bfd_boolean +coff_set_flags (bfd * abfd, + unsigned int *magicp ATTRIBUTE_UNUSED, + unsigned short *flagsp ATTRIBUTE_UNUSED) +{ + switch (bfd_get_arch (abfd)) + { +#ifdef Z80MAGIC + case bfd_arch_z80: + *magicp = Z80MAGIC; + switch (bfd_get_mach (abfd)) + { + case 0: + case bfd_mach_z80strict: + case bfd_mach_z80: + case bfd_mach_z80full: + case bfd_mach_r800: + *flagsp = bfd_get_mach (abfd) << 12; + break; + default: + return FALSE; + } + return TRUE; +#endif + +#ifdef Z8KMAGIC + case bfd_arch_z8k: + *magicp = Z8KMAGIC; + + switch (bfd_get_mach (abfd)) + { + case bfd_mach_z8001: *flagsp = F_Z8001; break; + case bfd_mach_z8002: *flagsp = F_Z8002; break; + default: return FALSE; + } + return TRUE; +#endif + +#ifdef I960ROMAGIC + case bfd_arch_i960: + + { + unsigned flags; + + *magicp = I960ROMAGIC; + + switch (bfd_get_mach (abfd)) + { + case bfd_mach_i960_core: flags = F_I960CORE; break; + case bfd_mach_i960_kb_sb: flags = F_I960KB; break; + case bfd_mach_i960_mc: flags = F_I960MC; break; + case bfd_mach_i960_xa: flags = F_I960XA; break; + case bfd_mach_i960_ca: flags = F_I960CA; break; + case bfd_mach_i960_ka_sa: flags = F_I960KA; break; + case bfd_mach_i960_jx: flags = F_I960JX; break; + case bfd_mach_i960_hx: flags = F_I960HX; break; + default: return FALSE; + } + *flagsp = flags; + return TRUE; + } + break; +#endif + +#ifdef TIC30MAGIC + case bfd_arch_tic30: + *magicp = TIC30MAGIC; + return TRUE; +#endif + +#ifdef TICOFF_DEFAULT_MAGIC + case TICOFF_TARGET_ARCH: + /* If there's no indication of which version we want, use the default. */ + if (!abfd->xvec ) + *magicp = TICOFF_DEFAULT_MAGIC; + else + { + /* We may want to output in a different COFF version. */ + switch (abfd->xvec->name[4]) + { + case '0': + *magicp = TICOFF0MAGIC; + break; + case '1': + *magicp = TICOFF1MAGIC; + break; + case '2': + *magicp = TICOFF2MAGIC; + break; + default: + return FALSE; + } + } + TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd)); + return TRUE; +#endif + +#ifdef TIC80_ARCH_MAGIC + case bfd_arch_tic80: + *magicp = TIC80_ARCH_MAGIC; + return TRUE; +#endif + +#ifdef ARMMAGIC + case bfd_arch_arm: +#ifdef ARM_WINCE + * magicp = ARMPEMAGIC; +#else + * magicp = ARMMAGIC; +#endif + * flagsp = 0; + if (APCS_SET (abfd)) + { + if (APCS_26_FLAG (abfd)) + * flagsp |= F_APCS26; + + if (APCS_FLOAT_FLAG (abfd)) + * flagsp |= F_APCS_FLOAT; + + if (PIC_FLAG (abfd)) + * flagsp |= F_PIC; + } + if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd)) + * flagsp |= F_INTERWORK; + switch (bfd_get_mach (abfd)) + { + case bfd_mach_arm_2: * flagsp |= F_ARM_2; break; + case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break; + case bfd_mach_arm_3: * flagsp |= F_ARM_3; break; + case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break; + case bfd_mach_arm_4: * flagsp |= F_ARM_4; break; + case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break; + case bfd_mach_arm_5: * flagsp |= F_ARM_5; break; + /* FIXME: we do not have F_ARM vaues greater than F_ARM_5. + See also the comment in coff_set_arch_mach_hook(). */ + case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break; + case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break; + case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break; + } + return TRUE; +#endif + +#ifdef PPCMAGIC + case bfd_arch_powerpc: + *magicp = PPCMAGIC; + return TRUE; +#endif + +#if defined(I386MAGIC) || defined(AMD64MAGIC) + case bfd_arch_i386: +#if defined(I386MAGIC) + *magicp = I386MAGIC; +#endif +#if defined LYNXOS + /* Just overwrite the usual value if we're doing Lynx. */ + *magicp = LYNXCOFFMAGIC; +#endif +#if defined AMD64MAGIC + *magicp = AMD64MAGIC; +#endif + return TRUE; +#endif + +#ifdef I860MAGIC + case bfd_arch_i860: + *magicp = I860MAGIC; + return TRUE; +#endif + +#ifdef IA64MAGIC + case bfd_arch_ia64: + *magicp = IA64MAGIC; + return TRUE; +#endif + +#ifdef MC68MAGIC + case bfd_arch_m68k: +#ifdef APOLLOM68KMAGIC + *magicp = APOLLO_COFF_VERSION_NUMBER; +#else + /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */ +#ifdef NAMES_HAVE_UNDERSCORE + *magicp = MC68KBCSMAGIC; +#else + *magicp = MC68MAGIC; +#endif +#endif +#ifdef LYNXOS + /* Just overwrite the usual value if we're doing Lynx. */ + *magicp = LYNXCOFFMAGIC; +#endif + return TRUE; +#endif + +#ifdef MC88MAGIC + case bfd_arch_m88k: + *magicp = MC88OMAGIC; + return TRUE; +#endif + +#ifdef H8300MAGIC + case bfd_arch_h8300: + switch (bfd_get_mach (abfd)) + { + case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE; + case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE; + case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE; + case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE; + case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE; + default: break; + } + break; +#endif + +#ifdef SH_ARCH_MAGIC_BIG + case bfd_arch_sh: +#ifdef COFF_IMAGE_WITH_PE + *magicp = SH_ARCH_MAGIC_WINCE; +#else + if (bfd_big_endian (abfd)) + *magicp = SH_ARCH_MAGIC_BIG; + else + *magicp = SH_ARCH_MAGIC_LITTLE; +#endif + return TRUE; +#endif + +#ifdef MIPS_ARCH_MAGIC_WINCE + case bfd_arch_mips: + *magicp = MIPS_ARCH_MAGIC_WINCE; + return TRUE; +#endif + +#ifdef SPARCMAGIC + case bfd_arch_sparc: + *magicp = SPARCMAGIC; +#ifdef LYNXOS + /* Just overwrite the usual value if we're doing Lynx. */ + *magicp = LYNXCOFFMAGIC; +#endif + return TRUE; +#endif + +#ifdef H8500MAGIC + case bfd_arch_h8500: + *magicp = H8500MAGIC; + return TRUE; + break; +#endif + +#ifdef WE32KMAGIC + case bfd_arch_we32k: + *magicp = WE32KMAGIC; + return TRUE; +#endif + +#ifdef RS6000COFF_C + case bfd_arch_rs6000: +#ifndef PPCMAGIC + case bfd_arch_powerpc: +#endif + BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour); + *magicp = bfd_xcoff_magic_number (abfd); + return TRUE; +#endif + +#ifdef MCOREMAGIC + case bfd_arch_mcore: + * magicp = MCOREMAGIC; + return TRUE; +#endif + +#ifdef W65MAGIC + case bfd_arch_w65: + *magicp = W65MAGIC; + return TRUE; +#endif + + default: /* Unknown architecture. */ + /* Fall through to "return FALSE" below, to avoid + "statement never reached" errors on the one below. */ + break; + } + + return FALSE; +} + +static bfd_boolean +coff_set_arch_mach (bfd * abfd, + enum bfd_architecture arch, + unsigned long machine) +{ + unsigned dummy1; + unsigned short dummy2; + + if (! bfd_default_set_arch_mach (abfd, arch, machine)) + return FALSE; + + if (arch != bfd_arch_unknown + && ! coff_set_flags (abfd, &dummy1, &dummy2)) + return FALSE; /* We can't represent this type. */ + + return TRUE; /* We're easy... */ +} + +#ifdef COFF_IMAGE_WITH_PE + +/* This is used to sort sections by VMA, as required by PE image + files. */ + +static int +sort_by_secaddr (const void * arg1, const void * arg2) +{ + const asection *a = *(const asection **) arg1; + const asection *b = *(const asection **) arg2; + + if (a->vma < b->vma) + return -1; + else if (a->vma > b->vma) + return 1; + + return 0; +} + +#endif /* COFF_IMAGE_WITH_PE */ + +/* Calculate the file position for each section. */ + +#ifndef I960 +#define ALIGN_SECTIONS_IN_FILE +#endif +#if defined(TIC80COFF) || defined(TICOFF) +#undef ALIGN_SECTIONS_IN_FILE +#endif + +static bfd_boolean +coff_compute_section_file_positions (bfd * abfd) +{ + asection *current; + file_ptr sofar = bfd_coff_filhsz (abfd); + bfd_boolean align_adjust; + unsigned int target_index; +#ifdef ALIGN_SECTIONS_IN_FILE + asection *previous = NULL; + file_ptr old_sofar; +#endif + +#ifdef COFF_IMAGE_WITH_PE + int page_size; + + if (coff_data (abfd)->link_info + || (pe_data (abfd) && pe_data (abfd)->pe_opthdr.FileAlignment)) + { + page_size = pe_data (abfd)->pe_opthdr.FileAlignment; + + /* If no file alignment has been set, default to one. + This repairs 'ld -r' for arm-wince-pe target. */ + if (page_size == 0) + page_size = 1; + } + else + page_size = PE_DEF_FILE_ALIGNMENT; +#else +#ifdef COFF_PAGE_SIZE + int page_size = COFF_PAGE_SIZE; +#endif +#endif + +#ifdef RS6000COFF_C + /* On XCOFF, if we have symbols, set up the .debug section. */ + if (bfd_get_symcount (abfd) > 0) + { + bfd_size_type sz; + bfd_size_type i, symcount; + asymbol **symp; + + sz = 0; + symcount = bfd_get_symcount (abfd); + for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++) + { + coff_symbol_type *cf; + + cf = coff_symbol_from (abfd, *symp); + if (cf != NULL + && cf->native != NULL + && cf->native->is_sym + && SYMNAME_IN_DEBUG (&cf->native->u.syment)) + { + size_t len; + + len = strlen (bfd_asymbol_name (*symp)); + if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd)) + sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd); + } + } + if (sz > 0) + { + asection *dsec; + + dsec = bfd_make_section_old_way (abfd, DOT_DEBUG); + if (dsec == NULL) + abort (); + dsec->size = sz; + dsec->flags |= SEC_HAS_CONTENTS; + } + } +#endif + + if (bfd_get_start_address (abfd)) + /* A start address may have been added to the original file. In this + case it will need an optional header to record it. */ + abfd->flags |= EXEC_P; + + if (abfd->flags & EXEC_P) + sofar += bfd_coff_aoutsz (abfd); +#ifdef RS6000COFF_C + else if (xcoff_data (abfd)->full_aouthdr) + sofar += bfd_coff_aoutsz (abfd); + else + sofar += SMALL_AOUTSZ; +#endif + + sofar += abfd->section_count * bfd_coff_scnhsz (abfd); + +#ifdef RS6000COFF_C + /* XCOFF handles overflows in the reloc and line number count fields + by allocating a new section header to hold the correct counts. */ + for (current = abfd->sections; current != NULL; current = current->next) + if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) + sofar += bfd_coff_scnhsz (abfd); +#endif + +#ifdef COFF_IMAGE_WITH_PE + { + /* PE requires the sections to be in memory order when listed in + the section headers. It also does not like empty loadable + sections. The sections apparently do not have to be in the + right order in the image file itself, but we do need to get the + target_index values right. */ + + unsigned int count; + asection **section_list; + unsigned int i; + bfd_size_type amt; + +#ifdef COFF_PAGE_SIZE + /* Clear D_PAGED if section alignment is smaller than + COFF_PAGE_SIZE. */ + if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE) + abfd->flags &= ~D_PAGED; +#endif + + count = 0; + for (current = abfd->sections; current != NULL; current = current->next) + ++count; + + /* We allocate an extra cell to simplify the final loop. */ + amt = sizeof (struct asection *) * (count + 1); + section_list = (asection **) bfd_malloc (amt); + if (section_list == NULL) + return FALSE; + + i = 0; + for (current = abfd->sections; current != NULL; current = current->next) + { + section_list[i] = current; + ++i; + } + section_list[i] = NULL; + + qsort (section_list, count, sizeof (asection *), sort_by_secaddr); + + /* Rethread the linked list into sorted order; at the same time, + assign target_index values. */ + target_index = 1; + abfd->sections = NULL; + abfd->section_last = NULL; + for (i = 0; i < count; i++) + { + current = section_list[i]; + bfd_section_list_append (abfd, current); + + /* Later, if the section has zero size, we'll be throwing it + away, so we don't want to number it now. Note that having + a zero size and having real contents are different + concepts: .bss has no contents, but (usually) non-zero + size. */ + if (current->size == 0) + { + /* Discard. However, it still might have (valid) symbols + in it, so arbitrarily set it to section 1 (indexing is + 1-based here; usually .text). __end__ and other + contents of .endsection really have this happen. + FIXME: This seems somewhat dubious. */ + current->target_index = 1; + } + else + current->target_index = target_index++; + } + + free (section_list); + } +#else /* ! COFF_IMAGE_WITH_PE */ + { + /* Set the target_index field. */ + target_index = 1; + for (current = abfd->sections; current != NULL; current = current->next) + current->target_index = target_index++; + } +#endif /* ! COFF_IMAGE_WITH_PE */ + + if (target_index >= bfd_coff_max_nscns (abfd)) + { + bfd_set_error (bfd_error_file_too_big); + (*_bfd_error_handler) + (_("%B: too many sections (%d)"), abfd, target_index); + return FALSE; + } + + align_adjust = FALSE; + for (current = abfd->sections; + current != NULL; + current = current->next) + { +#ifdef COFF_IMAGE_WITH_PE + /* With PE we have to pad each section to be a multiple of its + page size too, and remember both sizes. */ + if (coff_section_data (abfd, current) == NULL) + { + bfd_size_type amt = sizeof (struct coff_section_tdata); + + current->used_by_bfd = bfd_zalloc (abfd, amt); + if (current->used_by_bfd == NULL) + return FALSE; + } + if (pei_section_data (abfd, current) == NULL) + { + bfd_size_type amt = sizeof (struct pei_section_tdata); + + coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt); + if (coff_section_data (abfd, current)->tdata == NULL) + return FALSE; + } + if (pei_section_data (abfd, current)->virt_size == 0) + pei_section_data (abfd, current)->virt_size = current->size; +#endif + + /* Only deal with sections which have contents. */ + if (!(current->flags & SEC_HAS_CONTENTS)) + continue; + + current->rawsize = current->size; + +#ifdef COFF_IMAGE_WITH_PE + /* Make sure we skip empty sections in a PE image. */ + if (current->size == 0) + continue; +#endif + + /* Align the sections in the file to the same boundary on + which they are aligned in virtual memory. I960 doesn't + do this (FIXME) so we can stay in sync with Intel. 960 + doesn't yet page from files... */ +#ifdef ALIGN_SECTIONS_IN_FILE + if ((abfd->flags & EXEC_P) != 0) + { + /* Make sure this section is aligned on the right boundary - by + padding the previous section up if necessary. */ + old_sofar = sofar; + + sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); + +#ifdef RS6000COFF_C + /* Make sure the file offset and the vma of .text/.data are at the + same page offset, so that the file can be mmap'ed without being + relocated. Failing that, AIX is able to load and execute the + program, but it will be silently relocated (possible as + executables are PIE). But the relocation is slightly costly and + complexify the use of addr2line or gdb. So better to avoid it, + like does the native linker. Usually gnu ld makes sure that + the vma of .text is the file offset so this issue shouldn't + appear unless you are stripping such an executable. + + AIX loader checks the text section alignment of (vma - filepos), + and the native linker doesn't try to align the text sections. + For example: + + 0 .text 000054cc 10000128 10000128 00000128 2**5 + CONTENTS, ALLOC, LOAD, CODE + */ + + if (!strcmp (current->name, _TEXT) + || !strcmp (current->name, _DATA)) + { + bfd_vma align = 4096; + bfd_vma sofar_off = sofar % align; + bfd_vma vma_off = current->vma % align; + + if (vma_off > sofar_off) + sofar += vma_off - sofar_off; + else if (vma_off < sofar_off) + sofar += align + vma_off - sofar_off; + } +#endif + if (previous != NULL) + previous->size += sofar - old_sofar; + } + +#endif + + /* In demand paged files the low order bits of the file offset + must match the low order bits of the virtual address. */ +#ifdef COFF_PAGE_SIZE + if ((abfd->flags & D_PAGED) != 0 + && (current->flags & SEC_ALLOC) != 0) + sofar += (current->vma - (bfd_vma) sofar) % page_size; +#endif + current->filepos = sofar; + +#ifdef COFF_IMAGE_WITH_PE + /* Set the padded size. */ + current->size = (current->size + page_size - 1) & -page_size; +#endif + + sofar += current->size; + +#ifdef ALIGN_SECTIONS_IN_FILE + /* Make sure that this section is of the right size too. */ + if ((abfd->flags & EXEC_P) == 0) + { + bfd_size_type old_size; + + old_size = current->size; + current->size = BFD_ALIGN (current->size, + 1 << current->alignment_power); + align_adjust = current->size != old_size; + sofar += current->size - old_size; + } + else + { + old_sofar = sofar; + sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); + align_adjust = sofar != old_sofar; + current->size += sofar - old_sofar; + } +#endif + +#ifdef COFF_IMAGE_WITH_PE + /* For PE we need to make sure we pad out to the aligned + size, in case the caller only writes out data to the + unaligned size. */ + if (pei_section_data (abfd, current)->virt_size < current->size) + align_adjust = TRUE; +#endif + +#ifdef _LIB + /* Force .lib sections to start at zero. The vma is then + incremented in coff_set_section_contents. This is right for + SVR3.2. */ + if (strcmp (current->name, _LIB) == 0) + (void) bfd_set_section_vma (abfd, current, 0); +#endif + +#ifdef ALIGN_SECTIONS_IN_FILE + previous = current; +#endif + } + + /* It is now safe to write to the output file. If we needed an + alignment adjustment for the last section, then make sure that + there is a byte at offset sofar. If there are no symbols and no + relocs, then nothing follows the last section. If we don't force + the last byte out, then the file may appear to be truncated. */ + if (align_adjust) + { + bfd_byte b; + + b = 0; + if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0 + || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) + return FALSE; + } + + /* Make sure the relocations are aligned. We don't need to make + sure that this byte exists, because it will only matter if there + really are relocs. */ + sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER); + + obj_relocbase (abfd) = sofar; + abfd->output_has_begun = TRUE; + + return TRUE; +} + +#ifdef COFF_IMAGE_WITH_PE + +static unsigned int pelength; +static unsigned int peheader; + +static bfd_boolean +coff_read_word (bfd *abfd, unsigned int *value) +{ + unsigned char b[2]; + int status; + + status = bfd_bread (b, (bfd_size_type) 2, abfd); + if (status < 1) + { + *value = 0; + return FALSE; + } + + if (status == 1) + *value = (unsigned int) b[0]; + else + *value = (unsigned int) (b[0] + (b[1] << 8)); + + pelength += (unsigned int) status; + + return TRUE; +} + +static unsigned int +coff_compute_checksum (bfd *abfd) +{ + bfd_boolean more_data; + file_ptr filepos; + unsigned int value; + unsigned int total; + + total = 0; + pelength = 0; + filepos = (file_ptr) 0; + + do + { + if (bfd_seek (abfd, filepos, SEEK_SET) != 0) + return 0; + + more_data = coff_read_word (abfd, &value); + total += value; + total = 0xffff & (total + (total >> 0x10)); + filepos += 2; + } + while (more_data); + + return (0xffff & (total + (total >> 0x10))); +} + +static bfd_boolean +coff_apply_checksum (bfd *abfd) +{ + unsigned int computed; + unsigned int checksum = 0; + + if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0) + return FALSE; + + if (!coff_read_word (abfd, &peheader)) + return FALSE; + + if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0) + return FALSE; + + checksum = 0; + bfd_bwrite (&checksum, (bfd_size_type) 4, abfd); + + if (bfd_seek (abfd, peheader, SEEK_SET) != 0) + return FALSE; + + computed = coff_compute_checksum (abfd); + + checksum = computed + pelength; + + if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0) + return FALSE; + + bfd_bwrite (&checksum, (bfd_size_type) 4, abfd); + + return TRUE; +} + +#endif /* COFF_IMAGE_WITH_PE */ + +static bfd_boolean +coff_write_object_contents (bfd * abfd) +{ + asection *current; + bfd_boolean hasrelocs = FALSE; + bfd_boolean haslinno = FALSE; +#ifdef COFF_IMAGE_WITH_PE + bfd_boolean hasdebug = FALSE; +#endif + file_ptr scn_base; + file_ptr reloc_base; + file_ptr lineno_base; + file_ptr sym_base; + unsigned long reloc_size = 0, reloc_count = 0; + unsigned long lnno_size = 0; + bfd_boolean long_section_names; + asection *text_sec = NULL; + asection *data_sec = NULL; + asection *bss_sec = NULL; + struct internal_filehdr internal_f; + struct internal_aouthdr internal_a; +#ifdef COFF_LONG_SECTION_NAMES + size_t string_size = STRING_SIZE_SIZE; +#endif + + bfd_set_error (bfd_error_system_call); + + /* Make a pass through the symbol table to count line number entries and + put them into the correct asections. */ + lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); + + if (! abfd->output_has_begun) + { + if (! coff_compute_section_file_positions (abfd)) + return FALSE; + } + + reloc_base = obj_relocbase (abfd); + + /* Work out the size of the reloc and linno areas. */ + + for (current = abfd->sections; current != NULL; current = + current->next) + { +#ifdef COFF_WITH_PE + /* We store the actual reloc count in the first reloc's addr. */ + if (obj_pe (abfd) && current->reloc_count >= 0xffff) + reloc_count ++; +#endif + reloc_count += current->reloc_count; + } + + reloc_size = reloc_count * bfd_coff_relsz (abfd); + + lineno_base = reloc_base + reloc_size; + sym_base = lineno_base + lnno_size; + + /* Indicate in each section->line_filepos its actual file address. */ + for (current = abfd->sections; current != NULL; current = + current->next) + { + if (current->lineno_count) + { + current->line_filepos = lineno_base; + current->moving_line_filepos = lineno_base; + lineno_base += current->lineno_count * bfd_coff_linesz (abfd); + } + else + current->line_filepos = 0; + + if (current->reloc_count) + { + current->rel_filepos = reloc_base; + reloc_base += current->reloc_count * bfd_coff_relsz (abfd); +#ifdef COFF_WITH_PE + /* Extra reloc to hold real count. */ + if (obj_pe (abfd) && current->reloc_count >= 0xffff) + reloc_base += bfd_coff_relsz (abfd); +#endif + } + else + current->rel_filepos = 0; + } + + /* Write section headers to the file. */ + internal_f.f_nscns = 0; + + if ((abfd->flags & EXEC_P) != 0) + scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); + else + { + scn_base = bfd_coff_filhsz (abfd); +#ifdef RS6000COFF_C +#ifndef XCOFF64 + if (xcoff_data (abfd)->full_aouthdr) + scn_base += bfd_coff_aoutsz (abfd); + else + scn_base += SMALL_AOUTSZ; +#endif +#endif + } + + if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) + return FALSE; + + long_section_names = FALSE; + for (current = abfd->sections; + current != NULL; + current = current->next) + { + struct internal_scnhdr section; +#ifdef COFF_IMAGE_WITH_PE + bfd_boolean is_reloc_section = FALSE; + + if (strcmp (current->name, DOT_RELOC) == 0) + { + is_reloc_section = TRUE; + hasrelocs = TRUE; + pe_data (abfd)->has_reloc_section = 1; + } +#endif + + internal_f.f_nscns++; + + strncpy (section.s_name, current->name, SCNNMLEN); + +#ifdef COFF_LONG_SECTION_NAMES + /* Handle long section names as in PE. This must be compatible + with the code in coff_write_symbols and _bfd_coff_final_link. */ + if (bfd_coff_long_section_names (abfd)) + { + size_t len; + + len = strlen (current->name); + if (len > SCNNMLEN) + { + /* The s_name field is defined to be NUL-padded but need not be + NUL-terminated. We use a temporary buffer so that we can still + sprintf all eight chars without splatting a terminating NUL + over the first byte of the following member (s_paddr). */ + char s_name_buf[SCNNMLEN + 1]; + + /* An inherent limitation of the /nnnnnnn notation used to indicate + the offset of the long name in the string table is that we + cannot address entries beyone the ten million byte boundary. */ + if (string_size >= 10000000) + { + bfd_set_error (bfd_error_file_too_big); + (*_bfd_error_handler) + (_("%B: section %s: string table overflow at offset %ld"), + abfd, current->name, string_size); + return FALSE; + } + + /* snprintf not strictly necessary now we've verified the value + has less than eight ASCII digits, but never mind. */ + snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size); + /* Then strncpy takes care of any padding for us. */ + strncpy (section.s_name, s_name_buf, SCNNMLEN); + string_size += len + 1; + long_section_names = TRUE; + } + } +#endif + +#ifdef _LIB + /* Always set s_vaddr of .lib to 0. This is right for SVR3.2 + Ian Taylor <ian@cygnus.com>. */ + if (strcmp (current->name, _LIB) == 0) + section.s_vaddr = 0; + else +#endif + section.s_vaddr = current->vma; + section.s_paddr = current->lma; + section.s_size = current->size; +#ifdef coff_get_section_load_page + section.s_page = coff_get_section_load_page (current); +#else + section.s_page = 0; +#endif + +#ifdef COFF_WITH_PE + section.s_paddr = 0; +#endif +#ifdef COFF_IMAGE_WITH_PE + /* Reminder: s_paddr holds the virtual size of the section. */ + if (coff_section_data (abfd, current) != NULL + && pei_section_data (abfd, current) != NULL) + section.s_paddr = pei_section_data (abfd, current)->virt_size; + else + section.s_paddr = 0; +#endif + + /* If this section has no size or is unloadable then the scnptr + will be 0 too. */ + if (current->size == 0 + || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) + section.s_scnptr = 0; + else + section.s_scnptr = current->filepos; + + section.s_relptr = current->rel_filepos; + section.s_lnnoptr = current->line_filepos; + section.s_nreloc = current->reloc_count; + section.s_nlnno = current->lineno_count; +#ifndef COFF_IMAGE_WITH_PE + /* In PEI, relocs come in the .reloc section. */ + if (current->reloc_count != 0) + hasrelocs = TRUE; +#endif + if (current->lineno_count != 0) + haslinno = TRUE; +#ifdef COFF_IMAGE_WITH_PE + if ((current->flags & SEC_DEBUGGING) != 0 + && ! is_reloc_section) + hasdebug = TRUE; +#endif + +#ifdef RS6000COFF_C +#ifndef XCOFF64 + /* Indicate the use of an XCOFF overflow section header. */ + if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) + { + section.s_nreloc = 0xffff; + section.s_nlnno = 0xffff; + } +#endif +#endif + + section.s_flags = sec_to_styp_flags (current->name, current->flags); + + if (!strcmp (current->name, _TEXT)) + text_sec = current; + else if (!strcmp (current->name, _DATA)) + data_sec = current; + else if (!strcmp (current->name, _BSS)) + bss_sec = current; + +#ifdef I960 + section.s_align = (current->alignment_power + ? 1 << current->alignment_power + : 0); +#endif +#ifdef TIC80COFF + /* TI COFF puts the alignment power in bits 8-11 of the flags. */ + section.s_flags |= (current->alignment_power & 0xF) << 8; +#endif +#ifdef COFF_ENCODE_ALIGNMENT + COFF_ENCODE_ALIGNMENT(section, current->alignment_power); +#endif + +#ifdef COFF_IMAGE_WITH_PE + /* Suppress output of the sections if they are null. ld + includes the bss and data sections even if there is no size + assigned to them. NT loader doesn't like it if these section + headers are included if the sections themselves are not + needed. See also coff_compute_section_file_positions. */ + if (section.s_size == 0) + internal_f.f_nscns--; + else +#endif + { + SCNHDR buff; + bfd_size_type amt = bfd_coff_scnhsz (abfd); + + if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 + || bfd_bwrite (& buff, amt, abfd) != amt) + return FALSE; + } + +#ifdef COFF_WITH_PE + /* PE stores COMDAT section information in the symbol table. If + this section is supposed to have some COMDAT info, track down + the symbol in the symbol table and modify it. */ + if ((current->flags & SEC_LINK_ONCE) != 0) + { + unsigned int i, count; + asymbol **psym; + coff_symbol_type *csym = NULL; + asymbol **psymsec; + + psymsec = NULL; + count = bfd_get_symcount (abfd); + for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++) + { + if ((*psym)->section != current) + continue; + + /* Remember the location of the first symbol in this + section. */ + if (psymsec == NULL) + psymsec = psym; + + /* See if this is the section symbol. */ + if (strcmp ((*psym)->name, current->name) == 0) + { + csym = coff_symbol_from (abfd, *psym); + if (csym == NULL + || csym->native == NULL + || ! csym->native->is_sym + || csym->native->u.syment.n_numaux < 1 + || csym->native->u.syment.n_sclass != C_STAT + || csym->native->u.syment.n_type != T_NULL) + continue; + + /* Here *PSYM is the section symbol for CURRENT. */ + + break; + } + } + + /* Did we find it? + Note that we might not if we're converting the file from + some other object file format. */ + if (i < count) + { + combined_entry_type *aux; + + /* We don't touch the x_checksum field. The + x_associated field is not currently supported. */ + + aux = csym->native + 1; + BFD_ASSERT (! aux->is_sym); + switch (current->flags & SEC_LINK_DUPLICATES) + { + case SEC_LINK_DUPLICATES_DISCARD: + aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY; + break; + + case SEC_LINK_DUPLICATES_ONE_ONLY: + aux->u.auxent.x_scn.x_comdat = + IMAGE_COMDAT_SELECT_NODUPLICATES; + break; + + case SEC_LINK_DUPLICATES_SAME_SIZE: + aux->u.auxent.x_scn.x_comdat = + IMAGE_COMDAT_SELECT_SAME_SIZE; + break; + + case SEC_LINK_DUPLICATES_SAME_CONTENTS: + aux->u.auxent.x_scn.x_comdat = + IMAGE_COMDAT_SELECT_EXACT_MATCH; + break; + } + + /* The COMDAT symbol must be the first symbol from this + section in the symbol table. In order to make this + work, we move the COMDAT symbol before the first + symbol we found in the search above. It's OK to + rearrange the symbol table at this point, because + coff_renumber_symbols is going to rearrange it + further and fix up all the aux entries. */ + if (psym != psymsec) + { + asymbol *hold; + asymbol **pcopy; + + hold = *psym; + for (pcopy = psym; pcopy > psymsec; pcopy--) + pcopy[0] = pcopy[-1]; + *psymsec = hold; + } + } + } +#endif /* COFF_WITH_PE */ + } + +#ifdef RS6000COFF_C +#ifndef XCOFF64 + /* XCOFF handles overflows in the reloc and line number count fields + by creating a new section header to hold the correct values. */ + for (current = abfd->sections; current != NULL; current = current->next) + { + if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff) + { + struct internal_scnhdr scnhdr; + SCNHDR buff; + bfd_size_type amt; + + internal_f.f_nscns++; + memcpy (scnhdr.s_name, ".ovrflo", 8); + scnhdr.s_paddr = current->reloc_count; + scnhdr.s_vaddr = current->lineno_count; + scnhdr.s_size = 0; + scnhdr.s_scnptr = 0; + scnhdr.s_relptr = current->rel_filepos; + scnhdr.s_lnnoptr = current->line_filepos; + scnhdr.s_nreloc = current->target_index; + scnhdr.s_nlnno = current->target_index; + scnhdr.s_flags = STYP_OVRFLO; + amt = bfd_coff_scnhsz (abfd); + if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0 + || bfd_bwrite (& buff, amt, abfd) != amt) + return FALSE; + } + } +#endif +#endif + + /* OK, now set up the filehdr... */ + + /* Don't include the internal abs section in the section count */ + + /* We will NOT put a fucking timestamp in the header here. Every time you + put it back, I will come in and take it out again. I'm sorry. This + field does not belong here. We fill it with a 0 so it compares the + same but is not a reasonable time. -- gnu@cygnus.com */ + internal_f.f_timdat = 0; + internal_f.f_flags = 0; + + if (abfd->flags & EXEC_P) + internal_f.f_opthdr = bfd_coff_aoutsz (abfd); + else + { + internal_f.f_opthdr = 0; +#ifdef RS6000COFF_C +#ifndef XCOFF64 + if (xcoff_data (abfd)->full_aouthdr) + internal_f.f_opthdr = bfd_coff_aoutsz (abfd); + else + internal_f.f_opthdr = SMALL_AOUTSZ; +#endif +#endif + } + + if (!hasrelocs) + internal_f.f_flags |= F_RELFLG; + if (!haslinno) + internal_f.f_flags |= F_LNNO; + if (abfd->flags & EXEC_P) + internal_f.f_flags |= F_EXEC; +#ifdef COFF_IMAGE_WITH_PE + if (! hasdebug) + internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED; + if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) + internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; +#endif + +#ifndef COFF_WITH_pex64 +#ifdef COFF_WITH_PE + internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE; +#else + if (bfd_little_endian (abfd)) + internal_f.f_flags |= F_AR32WR; + else + internal_f.f_flags |= F_AR32W; +#endif +#endif + +#ifdef TI_TARGET_ID + /* Target id is used in TI COFF v1 and later; COFF0 won't use this field, + but it doesn't hurt to set it internally. */ + internal_f.f_target_id = TI_TARGET_ID; +#endif +#ifdef TIC80_TARGET_ID + internal_f.f_target_id = TIC80_TARGET_ID; +#endif + + /* FIXME, should do something about the other byte orders and + architectures. */ + +#ifdef RS6000COFF_C + if ((abfd->flags & DYNAMIC) != 0) + internal_f.f_flags |= F_SHROBJ; + if (bfd_get_section_by_name (abfd, _LOADER) != NULL) + internal_f.f_flags |= F_DYNLOAD; +#endif + + /* Set up architecture-dependent stuff. */ + { + unsigned int magic = 0; + unsigned short flags = 0; + + coff_set_flags (abfd, &magic, &flags); + internal_f.f_magic = magic; + internal_f.f_flags |= flags; + /* ...and the "opt"hdr... */ + +#ifdef TICOFF_AOUT_MAGIC + internal_a.magic = TICOFF_AOUT_MAGIC; +#define __A_MAGIC_SET__ +#endif +#ifdef TIC80COFF + internal_a.magic = TIC80_ARCH_MAGIC; +#define __A_MAGIC_SET__ +#endif /* TIC80 */ +#ifdef I860 + /* FIXME: What are the a.out magic numbers for the i860? */ + internal_a.magic = 0; +#define __A_MAGIC_SET__ +#endif /* I860 */ +#ifdef I960 + internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); +#define __A_MAGIC_SET__ +#endif /* I960 */ +#if M88 +#define __A_MAGIC_SET__ + internal_a.magic = PAGEMAGICBCS; +#endif /* M88 */ + +#if APOLLO_M68 +#define __A_MAGIC_SET__ + internal_a.magic = APOLLO_COFF_VERSION_NUMBER; +#endif + +#if defined(M68) || defined(WE32K) || defined(M68K) +#define __A_MAGIC_SET__ +#if defined(LYNXOS) + internal_a.magic = LYNXCOFFMAGIC; +#else +#if defined(TARG_AUX) + internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED : + abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED : + PAGEMAGICEXECSWAPPED); +#else +#if defined (PAGEMAGICPEXECPAGED) + internal_a.magic = PAGEMAGICPEXECPAGED; +#endif +#endif /* TARG_AUX */ +#endif /* LYNXOS */ +#endif /* M68 || WE32K || M68K */ + +#if defined(ARM) +#define __A_MAGIC_SET__ + internal_a.magic = ZMAGIC; +#endif + +#if defined(PPC_PE) +#define __A_MAGIC_SET__ + internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; +#endif + +#if defined MCORE_PE +#define __A_MAGIC_SET__ + internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC; +#endif + +#if defined(I386) +#define __A_MAGIC_SET__ +#if defined LYNXOS + internal_a.magic = LYNXCOFFMAGIC; +#elif defined AMD64 + internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC; +#else + internal_a.magic = ZMAGIC; +#endif +#endif /* I386 */ + +#if defined(IA64) +#define __A_MAGIC_SET__ + internal_a.magic = PE32PMAGIC; +#endif /* IA64 */ + +#if defined(SPARC) +#define __A_MAGIC_SET__ +#if defined(LYNXOS) + internal_a.magic = LYNXCOFFMAGIC; +#endif /* LYNXOS */ +#endif /* SPARC */ + +#ifdef RS6000COFF_C +#define __A_MAGIC_SET__ + internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : + (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : + RS6K_AOUTHDR_OMAGIC; +#endif + +#if defined(SH) && defined(COFF_WITH_PE) +#define __A_MAGIC_SET__ + internal_a.magic = SH_PE_MAGIC; +#endif + +#if defined(MIPS) && defined(COFF_WITH_PE) +#define __A_MAGIC_SET__ + internal_a.magic = MIPS_PE_MAGIC; +#endif + +#ifndef __A_MAGIC_SET__ +#include "Your aouthdr magic number is not being set!" +#else +#undef __A_MAGIC_SET__ +#endif + } + + /* FIXME: Does anybody ever set this to another value? */ + internal_a.vstamp = 0; + + /* Now should write relocs, strings, syms. */ + obj_sym_filepos (abfd) = sym_base; + + if (bfd_get_symcount (abfd) != 0) + { + int firstundef; + + if (!coff_renumber_symbols (abfd, &firstundef)) + return FALSE; + coff_mangle_symbols (abfd); + if (! coff_write_symbols (abfd)) + return FALSE; + if (! coff_write_linenumbers (abfd)) + return FALSE; + if (! coff_write_relocs (abfd, firstundef)) + return FALSE; + } +#ifdef COFF_LONG_SECTION_NAMES + else if (long_section_names && ! obj_coff_strings_written (abfd)) + { + /* If we have long section names we have to write out the string + table even if there are no symbols. */ + if (! coff_write_symbols (abfd)) + return FALSE; + } +#endif +#ifdef COFF_IMAGE_WITH_PE +#ifdef PPC_PE + else if ((abfd->flags & EXEC_P) != 0) + { + bfd_byte b; + + /* PowerPC PE appears to require that all executable files be + rounded up to the page size. */ + b = 0; + if (bfd_seek (abfd, + (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1, + SEEK_SET) != 0 + || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) + return FALSE; + } +#endif +#endif + + /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF + backend linker, and obj_raw_syment_count is not valid until after + coff_write_symbols is called. */ + if (obj_raw_syment_count (abfd) != 0) + { + internal_f.f_symptr = sym_base; +#ifdef RS6000COFF_C + /* AIX appears to require that F_RELFLG not be set if there are + local symbols but no relocations. */ + internal_f.f_flags &=~ F_RELFLG; +#endif + } + else + { + if (long_section_names) + internal_f.f_symptr = sym_base; + else + internal_f.f_symptr = 0; + internal_f.f_flags |= F_LSYMS; + } + + if (text_sec) + { + internal_a.tsize = text_sec->size; + internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; + } + if (data_sec) + { + internal_a.dsize = data_sec->size; + internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; + } + if (bss_sec) + { + internal_a.bsize = bss_sec->size; + if (internal_a.bsize && bss_sec->vma < internal_a.data_start) + internal_a.data_start = bss_sec->vma; + } + + internal_a.entry = bfd_get_start_address (abfd); + internal_f.f_nsyms = obj_raw_syment_count (abfd); + +#ifdef RS6000COFF_C + if (xcoff_data (abfd)->full_aouthdr) + { + bfd_vma toc; + asection *loader_sec; + + internal_a.vstamp = 1; + + internal_a.o_snentry = xcoff_data (abfd)->snentry; + if (internal_a.o_snentry == 0) + internal_a.entry = (bfd_vma) -1; + + if (text_sec != NULL) + { + internal_a.o_sntext = text_sec->target_index; + internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); + } + else + { + internal_a.o_sntext = 0; + internal_a.o_algntext = 0; + } + if (data_sec != NULL) + { + internal_a.o_sndata = data_sec->target_index; + internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); + } + else + { + internal_a.o_sndata = 0; + internal_a.o_algndata = 0; + } + loader_sec = bfd_get_section_by_name (abfd, ".loader"); + if (loader_sec != NULL) + internal_a.o_snloader = loader_sec->target_index; + else + internal_a.o_snloader = 0; + if (bss_sec != NULL) + internal_a.o_snbss = bss_sec->target_index; + else + internal_a.o_snbss = 0; + + toc = xcoff_data (abfd)->toc; + internal_a.o_toc = toc; + internal_a.o_sntoc = xcoff_data (abfd)->sntoc; + + internal_a.o_modtype = xcoff_data (abfd)->modtype; + if (xcoff_data (abfd)->cputype != -1) + internal_a.o_cputype = xcoff_data (abfd)->cputype; + else + { + switch (bfd_get_arch (abfd)) + { + case bfd_arch_rs6000: + internal_a.o_cputype = 4; + break; + case bfd_arch_powerpc: + if (bfd_get_mach (abfd) == bfd_mach_ppc) + internal_a.o_cputype = 3; + else + internal_a.o_cputype = 1; + break; + default: + abort (); + } + } + internal_a.o_maxstack = xcoff_data (abfd)->maxstack; + internal_a.o_maxdata = xcoff_data (abfd)->maxdata; + } +#endif + +#ifdef COFF_WITH_PE + { + /* After object contents are finalized so we can compute a reasonable hash, + but before header is written so we can update it to point to debug directory. */ + struct pe_tdata *pe = pe_data (abfd); + + if (pe->build_id.after_write_object_contents != NULL) + (*pe->build_id.after_write_object_contents) (abfd); + } +#endif + + /* Now write header. */ + if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) + return FALSE; + + { + char * buff; + bfd_size_type amount = bfd_coff_filhsz (abfd); + + buff = (char *) bfd_malloc (amount); + if (buff == NULL) + return FALSE; + + bfd_coff_swap_filehdr_out (abfd, & internal_f, buff); + amount = bfd_bwrite (buff, amount, abfd); + + free (buff); + + if (amount != bfd_coff_filhsz (abfd)) + return FALSE; + } + + if (abfd->flags & EXEC_P) + { + /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR. + include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */ + char * buff; + bfd_size_type amount = bfd_coff_aoutsz (abfd); + + buff = (char *) bfd_malloc (amount); + if (buff == NULL) + return FALSE; + + coff_swap_aouthdr_out (abfd, & internal_a, buff); + amount = bfd_bwrite (buff, amount, abfd); + + free (buff); + + if (amount != bfd_coff_aoutsz (abfd)) + return FALSE; + +#ifdef COFF_IMAGE_WITH_PE + if (! coff_apply_checksum (abfd)) + return FALSE; +#endif + } +#ifdef RS6000COFF_C + else + { + AOUTHDR buff; + size_t size; + + /* XCOFF seems to always write at least a small a.out header. */ + coff_swap_aouthdr_out (abfd, & internal_a, & buff); + if (xcoff_data (abfd)->full_aouthdr) + size = bfd_coff_aoutsz (abfd); + else + size = SMALL_AOUTSZ; + if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size) + return FALSE; + } +#endif + + return TRUE; +} + +static bfd_boolean +coff_set_section_contents (bfd * abfd, + sec_ptr section, + const void * location, + file_ptr offset, + bfd_size_type count) +{ + if (! abfd->output_has_begun) /* Set by bfd.c handler. */ + { + if (! coff_compute_section_file_positions (abfd)) + return FALSE; + } + +#if defined(_LIB) && !defined(TARG_AUX) + /* The physical address field of a .lib section is used to hold the + number of shared libraries in the section. This code counts the + number of sections being written, and increments the lma field + with the number. + + I have found no documentation on the contents of this section. + Experimentation indicates that the section contains zero or more + records, each of which has the following structure: + + - a (four byte) word holding the length of this record, in words, + - a word that always seems to be set to "2", + - the path to a shared library, null-terminated and then padded + to a whole word boundary. + + bfd_assert calls have been added to alert if an attempt is made + to write a section which doesn't follow these assumptions. The + code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe + <robertl@arnet.com> (Thanks!). + + Gvran Uddeborg <gvran@uddeborg.pp.se>. */ + if (strcmp (section->name, _LIB) == 0) + { + bfd_byte *rec, *recend; + + rec = (bfd_byte *) location; + recend = rec + count; + while (rec < recend) + { + ++section->lma; + rec += bfd_get_32 (abfd, rec) * 4; + } + + BFD_ASSERT (rec == recend); + } +#endif + + /* Don't write out bss sections - one way to do this is to + see if the filepos has not been set. */ + if (section->filepos == 0) + return TRUE; + + if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0) + return FALSE; + + if (count == 0) + return TRUE; + + return bfd_bwrite (location, count, abfd) == count; +} + +static void * +buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size) +{ + void * area = bfd_alloc (abfd, size); + + if (!area) + return NULL; + if (bfd_seek (abfd, where, SEEK_SET) != 0 + || bfd_bread (area, size, abfd) != size) + return NULL; + return area; +} + +/* +SUBSUBSECTION + Reading linenumbers + + Creating the linenumber table is done by reading in the entire + coff linenumber table, and creating another table for internal use. + + A coff linenumber table is structured so that each function + is marked as having a line number of 0. Each line within the + function is an offset from the first line in the function. The + base of the line number information for the table is stored in + the symbol associated with the function. + + Note: The PE format uses line number 0 for a flag indicating a + new source file. + + The information is copied from the external to the internal + table, and each symbol which marks a function is marked by + pointing its... + + How does this work ? +*/ + +static int +coff_sort_func_alent (const void * arg1, const void * arg2) +{ + const alent *al1 = *(const alent **) arg1; + const alent *al2 = *(const alent **) arg2; + const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym); + const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym); + + if (s1 == NULL || s2 == NULL) + return 0; + if (s1->symbol.value < s2->symbol.value) + return -1; + else if (s1->symbol.value > s2->symbol.value) + return 1; + + return 0; +} + +static bfd_boolean +coff_slurp_line_table (bfd *abfd, asection *asect) +{ + LINENO *native_lineno; + alent *lineno_cache; + bfd_size_type amt; + unsigned int counter; + alent *cache_ptr; + bfd_vma prev_offset = 0; + bfd_boolean ordered = TRUE; + unsigned int nbr_func; + LINENO *src; + bfd_boolean have_func; + + BFD_ASSERT (asect->lineno == NULL); + + amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent); + lineno_cache = (alent *) bfd_alloc (abfd, amt); + if (lineno_cache == NULL) + return FALSE; + + amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count; + native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt); + if (native_lineno == NULL) + { + (*_bfd_error_handler) + (_("%B: warning: line number table read failed"), abfd); + bfd_release (abfd, lineno_cache); + return FALSE; + } + + cache_ptr = lineno_cache; + asect->lineno = lineno_cache; + src = native_lineno; + nbr_func = 0; + have_func = FALSE; + + for (counter = 0; counter < asect->lineno_count; counter++, src++) + { + struct internal_lineno dst; + + bfd_coff_swap_lineno_in (abfd, src, &dst); + cache_ptr->line_number = dst.l_lnno; + /* Appease memory checkers that get all excited about + uninitialised memory when copying alents if u.offset is + larger than u.sym. (64-bit BFD on 32-bit host.) */ + memset (&cache_ptr->u, 0, sizeof (cache_ptr->u)); + + if (cache_ptr->line_number == 0) + { + combined_entry_type * ent; + bfd_vma symndx; + coff_symbol_type *sym; + + have_func = FALSE; + symndx = dst.l_addr.l_symndx; + if (symndx >= obj_raw_syment_count (abfd)) + { + (*_bfd_error_handler) + (_("%B: warning: illegal symbol index 0x%lx in line number entry %d"), + abfd, (long) symndx, counter); + cache_ptr->line_number = -1; + continue; + } + + ent = obj_raw_syments (abfd) + symndx; + /* FIXME: We should not be casting between ints and + pointers like this. */ + if (! ent->is_sym) + { + (*_bfd_error_handler) + (_("%B: warning: illegal symbol index 0x%lx in line number entry %d"), + abfd, (long) symndx, counter); + cache_ptr->line_number = -1; + continue; + } + sym = (coff_symbol_type *) (ent->u.syment._n._n_n._n_zeroes); + + /* PR 17512 file: 078-10659-0.004 */ + if (sym < obj_symbols (abfd) + || sym >= obj_symbols (abfd) + bfd_get_symcount (abfd)) + { + (*_bfd_error_handler) + (_("%B: warning: illegal symbol in line number entry %d"), + abfd, counter); + cache_ptr->line_number = -1; + continue; + } + + have_func = TRUE; + nbr_func++; + cache_ptr->u.sym = (asymbol *) sym; + if (sym->lineno != NULL) + (*_bfd_error_handler) + (_("%B: warning: duplicate line number information for `%s'"), + abfd, bfd_asymbol_name (&sym->symbol)); + + sym->lineno = cache_ptr; + if (sym->symbol.value < prev_offset) + ordered = FALSE; + prev_offset = sym->symbol.value; + } + else if (!have_func) + /* Drop line information that has no associated function. + PR 17521: file: 078-10659-0.004. */ + continue; + else + cache_ptr->u.offset = (dst.l_addr.l_paddr + - bfd_section_vma (abfd, asect)); + cache_ptr++; + } + + asect->lineno_count = cache_ptr - lineno_cache; + memset (cache_ptr, 0, sizeof (*cache_ptr)); + bfd_release (abfd, native_lineno); + + /* On some systems (eg AIX5.3) the lineno table may not be sorted. */ + if (!ordered) + { + /* Sort the table. */ + alent **func_table; + alent *n_lineno_cache; + + /* Create a table of functions. */ + func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *)); + if (func_table != NULL) + { + alent **p = func_table; + unsigned int i; + + for (i = 0; i < asect->lineno_count; i++) + if (lineno_cache[i].line_number == 0) + *p++ = &lineno_cache[i]; + + BFD_ASSERT ((unsigned int) (p - func_table) == nbr_func); + + /* Sort by functions. */ + qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent); + + /* Create the new sorted table. */ + amt = (bfd_size_type) asect->lineno_count * sizeof (alent); + n_lineno_cache = (alent *) bfd_alloc (abfd, amt); + if (n_lineno_cache != NULL) + { + alent *n_cache_ptr = n_lineno_cache; + + for (i = 0; i < nbr_func; i++) + { + coff_symbol_type *sym; + alent *old_ptr = func_table[i]; + + /* Update the function entry. */ + sym = (coff_symbol_type *) old_ptr->u.sym; + /* PR binutils/17512: Point the lineno to where + this entry will be after the memcpy below. */ + sym->lineno = lineno_cache + (n_cache_ptr - n_lineno_cache); + /* Copy the function and line number entries. */ + do + *n_cache_ptr++ = *old_ptr++; + while (old_ptr->line_number != 0); + } + BFD_ASSERT ((bfd_size_type) (n_cache_ptr - n_lineno_cache) == (amt / sizeof (alent))); + + memcpy (lineno_cache, n_lineno_cache, amt); + } + bfd_release (abfd, func_table); + } + } + + return TRUE; +} + +/* Slurp in the symbol table, converting it to generic form. Note + that if coff_relocate_section is defined, the linker will read + symbols via coff_link_add_symbols, rather than via this routine. */ + +static bfd_boolean +coff_slurp_symbol_table (bfd * abfd) +{ + combined_entry_type *native_symbols; + coff_symbol_type *cached_area; + unsigned int *table_ptr; + bfd_size_type amt; + unsigned int number_of_symbols = 0; + + if (obj_symbols (abfd)) + return TRUE; + + /* Read in the symbol table. */ + if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL) + return FALSE; + + /* Allocate enough room for all the symbols in cached form. */ + amt = obj_raw_syment_count (abfd); + amt *= sizeof (coff_symbol_type); + cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt); + if (cached_area == NULL) + return FALSE; + + amt = obj_raw_syment_count (abfd); + amt *= sizeof (unsigned int); + table_ptr = (unsigned int *) bfd_zalloc (abfd, amt); + + if (table_ptr == NULL) + return FALSE; + else + { + coff_symbol_type *dst = cached_area; + unsigned int last_native_index = obj_raw_syment_count (abfd); + unsigned int this_index = 0; + + while (this_index < last_native_index) + { + combined_entry_type *src = native_symbols + this_index; + table_ptr[this_index] = number_of_symbols; + + dst->symbol.the_bfd = abfd; + BFD_ASSERT (src->is_sym); + dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset); + /* We use the native name field to point to the cached field. */ + src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst; + dst->symbol.section = coff_section_from_bfd_index (abfd, + src->u.syment.n_scnum); + dst->symbol.flags = 0; + /* PR 17512: file: 079-7098-0.001:0.1. */ + dst->symbol.value = 0; + dst->done_lineno = FALSE; + + switch (src->u.syment.n_sclass) + { +#ifdef I960 + case C_LEAFEXT: + /* Fall through to next case. */ +#endif + + case C_EXT: + case C_WEAKEXT: +#if defined ARM + case C_THUMBEXT: + case C_THUMBEXTFUNC: +#endif +#ifdef RS6000COFF_C + case C_HIDEXT: +#endif +#ifdef C_SYSTEM + case C_SYSTEM: /* System Wide variable. */ +#endif +#ifdef COFF_WITH_PE + /* In PE, 0x68 (104) denotes a section symbol. */ + case C_SECTION: + /* In PE, 0x69 (105) denotes a weak external symbol. */ + case C_NT_WEAK: +#endif + switch (coff_classify_symbol (abfd, &src->u.syment)) + { + case COFF_SYMBOL_GLOBAL: + dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; +#if defined COFF_WITH_PE + /* PE sets the symbol to a value relative to the + start of the section. */ + dst->symbol.value = src->u.syment.n_value; +#else + dst->symbol.value = (src->u.syment.n_value + - dst->symbol.section->vma); +#endif + if (ISFCN ((src->u.syment.n_type))) + /* A function ext does not go at the end of a + file. */ + dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; + break; + + case COFF_SYMBOL_COMMON: + dst->symbol.section = bfd_com_section_ptr; + dst->symbol.value = src->u.syment.n_value; + break; + + case COFF_SYMBOL_UNDEFINED: + dst->symbol.section = bfd_und_section_ptr; + dst->symbol.value = 0; + break; + + case COFF_SYMBOL_PE_SECTION: + dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM; + dst->symbol.value = 0; + break; + + case COFF_SYMBOL_LOCAL: + dst->symbol.flags = BSF_LOCAL; +#if defined COFF_WITH_PE + /* PE sets the symbol to a value relative to the + start of the section. */ + dst->symbol.value = src->u.syment.n_value; +#else + dst->symbol.value = (src->u.syment.n_value + - dst->symbol.section->vma); +#endif + if (ISFCN ((src->u.syment.n_type))) + dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION; + break; + } + +#ifdef RS6000COFF_C + /* A symbol with a csect entry should not go at the end. */ + if (src->u.syment.n_numaux > 0) + dst->symbol.flags |= BSF_NOT_AT_END; +#endif + +#ifdef COFF_WITH_PE + if (src->u.syment.n_sclass == C_NT_WEAK) + dst->symbol.flags |= BSF_WEAK; + + if (src->u.syment.n_sclass == C_SECTION + && src->u.syment.n_scnum > 0) + dst->symbol.flags = BSF_LOCAL; +#endif + if (src->u.syment.n_sclass == C_WEAKEXT) + dst->symbol.flags |= BSF_WEAK; + + break; + + case C_STAT: /* Static. */ +#ifdef I960 + case C_LEAFSTAT: /* Static leaf procedure. */ +#endif +#if defined ARM + case C_THUMBSTAT: /* Thumb static. */ + case C_THUMBLABEL: /* Thumb label. */ + case C_THUMBSTATFUNC:/* Thumb static function. */ +#endif +#ifdef RS6000COFF_C + case C_DWARF: /* A label in a dwarf section. */ + case C_INFO: /* A label in a comment section. */ +#endif + case C_LABEL: /* Label. */ + if (src->u.syment.n_scnum == N_DEBUG) + dst->symbol.flags = BSF_DEBUGGING; + else + dst->symbol.flags = BSF_LOCAL; + + /* Base the value as an index from the base of the + section, if there is one. */ + if (dst->symbol.section) + { +#if defined COFF_WITH_PE + /* PE sets the symbol to a value relative to the + start of the section. */ + dst->symbol.value = src->u.syment.n_value; +#else + dst->symbol.value = (src->u.syment.n_value + - dst->symbol.section->vma); +#endif + } + else + dst->symbol.value = src->u.syment.n_value; + break; + + case C_MOS: /* Member of structure. */ + case C_EOS: /* End of structure. */ + case C_REGPARM: /* Register parameter. */ + case C_REG: /* register variable. */ + /* C_AUTOARG conflicts with TI COFF C_UEXT. */ +#if !defined (TIC80COFF) && !defined (TICOFF) +#ifdef C_AUTOARG + case C_AUTOARG: /* 960-specific storage class. */ +#endif +#endif + case C_TPDEF: /* Type definition. */ + case C_ARG: + case C_AUTO: /* Automatic variable. */ + case C_FIELD: /* Bit field. */ + case C_ENTAG: /* Enumeration tag. */ + case C_MOE: /* Member of enumeration. */ + case C_MOU: /* Member of union. */ + case C_UNTAG: /* Union tag. */ + dst->symbol.flags = BSF_DEBUGGING; + dst->symbol.value = (src->u.syment.n_value); + break; + + case C_FILE: /* File name. */ + case C_STRTAG: /* Structure tag. */ +#ifdef RS6000COFF_C + case C_GSYM: + case C_LSYM: + case C_PSYM: + case C_RSYM: + case C_RPSYM: + case C_STSYM: + case C_TCSYM: + case C_BCOMM: + case C_ECOML: + case C_ECOMM: + case C_DECL: + case C_ENTRY: + case C_FUN: + case C_ESTAT: +#endif + dst->symbol.flags = BSF_DEBUGGING; + dst->symbol.value = (src->u.syment.n_value); + break; + +#ifdef RS6000COFF_C + case C_BINCL: /* Beginning of include file. */ + case C_EINCL: /* Ending of include file. */ + /* The value is actually a pointer into the line numbers + of the file. We locate the line number entry, and + set the section to the section which contains it, and + the value to the index in that section. */ + { + asection *sec; + + dst->symbol.flags = BSF_DEBUGGING; + for (sec = abfd->sections; sec != NULL; sec = sec->next) + if (sec->line_filepos <= (file_ptr) src->u.syment.n_value + && ((file_ptr) (sec->line_filepos + + sec->lineno_count * bfd_coff_linesz (abfd)) + > (file_ptr) src->u.syment.n_value)) + break; + if (sec == NULL) + dst->symbol.value = 0; + else + { + dst->symbol.section = sec; + dst->symbol.value = ((src->u.syment.n_value + - sec->line_filepos) + / bfd_coff_linesz (abfd)); + src->fix_line = 1; + } + } + break; + + case C_BSTAT: + dst->symbol.flags = BSF_DEBUGGING; + + /* The value is actually a symbol index. Save a pointer + to the symbol instead of the index. FIXME: This + should use a union. */ + src->u.syment.n_value = + (long) (intptr_t) (native_symbols + src->u.syment.n_value); + dst->symbol.value = src->u.syment.n_value; + src->fix_value = 1; + break; +#endif + + case C_BLOCK: /* ".bb" or ".eb". */ + case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */ + case C_EFCN: /* Physical end of function. */ +#if defined COFF_WITH_PE + /* PE sets the symbol to a value relative to the start + of the section. */ + dst->symbol.value = src->u.syment.n_value; + if (strcmp (dst->symbol.name, ".bf") != 0) + { + /* PE uses funny values for .ef and .lf; don't + relocate them. */ + dst->symbol.flags = BSF_DEBUGGING; + } + else + dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC; +#else + /* Base the value as an index from the base of the + section. */ + dst->symbol.flags = BSF_LOCAL; + dst->symbol.value = (src->u.syment.n_value + - dst->symbol.section->vma); +#endif + break; + + case C_STATLAB: /* Static load time label. */ + dst->symbol.value = src->u.syment.n_value; + dst->symbol.flags = BSF_GLOBAL; + break; + + case C_NULL: + /* PE DLLs sometimes have zeroed out symbols for some + reason. Just ignore them without a warning. */ + if (src->u.syment.n_type == 0 + && src->u.syment.n_value == 0 + && src->u.syment.n_scnum == 0) + break; +#ifdef RS6000COFF_C + /* XCOFF specific: deleted entry. */ + if (src->u.syment.n_value == C_NULL_VALUE) + break; +#endif + /* Fall through. */ + case C_EXTDEF: /* External definition. */ + case C_ULABEL: /* Undefined label. */ + case C_USTATIC: /* Undefined static. */ +#ifndef COFF_WITH_PE + /* C_LINE in regular coff is 0x68. NT has taken over this storage + class to represent a section symbol. */ + case C_LINE: /* line # reformatted as symbol table entry. */ + /* NT uses 0x67 for a weak symbol, not C_ALIAS. */ + case C_ALIAS: /* Duplicate tag. */ +#endif + /* New storage classes for TI COFF. */ +#if defined(TIC80COFF) || defined(TICOFF) + case C_UEXT: /* Tentative external definition. */ +#endif + case C_EXTLAB: /* External load time label. */ + case C_HIDDEN: /* Ext symbol in dmert public lib. */ + default: + (*_bfd_error_handler) + (_("%B: Unrecognized storage class %d for %s symbol `%s'"), + abfd, src->u.syment.n_sclass, + dst->symbol.section->name, dst->symbol.name); + dst->symbol.flags = BSF_DEBUGGING; + dst->symbol.value = (src->u.syment.n_value); + break; + } + + dst->native = src; + dst->symbol.udata.i = 0; + dst->lineno = NULL; + + this_index += (src->u.syment.n_numaux) + 1; + dst++; + number_of_symbols++; + } + } + + obj_symbols (abfd) = cached_area; + obj_raw_syments (abfd) = native_symbols; + + bfd_get_symcount (abfd) = number_of_symbols; + obj_convert (abfd) = table_ptr; + /* Slurp the line tables for each section too. */ + { + asection *p; + + p = abfd->sections; + while (p) + { + coff_slurp_line_table (abfd, p); + p = p->next; + } + } + + return TRUE; +} + +/* Classify a COFF symbol. A couple of targets have globally visible + symbols which are not class C_EXT, and this handles those. It also + recognizes some special PE cases. */ + +static enum coff_symbol_classification +coff_classify_symbol (bfd *abfd, + struct internal_syment *syment) +{ + /* FIXME: This partially duplicates the switch in + coff_slurp_symbol_table. */ + switch (syment->n_sclass) + { + case C_EXT: + case C_WEAKEXT: +#ifdef I960 + case C_LEAFEXT: +#endif +#ifdef ARM + case C_THUMBEXT: + case C_THUMBEXTFUNC: +#endif +#ifdef C_SYSTEM + case C_SYSTEM: +#endif +#ifdef COFF_WITH_PE + case C_NT_WEAK: +#endif + if (syment->n_scnum == 0) + { + if (syment->n_value == 0) + return COFF_SYMBOL_UNDEFINED; + else + return COFF_SYMBOL_COMMON; + } + return COFF_SYMBOL_GLOBAL; + + default: + break; + } + +#ifdef COFF_WITH_PE + if (syment->n_sclass == C_STAT) + { + if (syment->n_scnum == 0) + /* The Microsoft compiler sometimes generates these if a + small static function is inlined every time it is used. + The function is discarded, but the symbol table entry + remains. */ + return COFF_SYMBOL_LOCAL; + +#ifdef STRICT_PE_FORMAT + /* This is correct for Microsoft generated objects, but it + breaks gas generated objects. */ + if (syment->n_value == 0) + { + asection *sec; + char * name; + char buf[SYMNMLEN + 1]; + + name = _bfd_coff_internal_syment_name (abfd, syment, buf) + sec = coff_section_from_bfd_index (abfd, syment->n_scnum); + if (sec != NULL && name != NULL + && (strcmp (bfd_get_section_name (abfd, sec), name) == 0)) + return COFF_SYMBOL_PE_SECTION; + } +#endif + + return COFF_SYMBOL_LOCAL; + } + + if (syment->n_sclass == C_SECTION) + { + /* In some cases in a DLL generated by the Microsoft linker, the + n_value field will contain garbage. FIXME: This should + probably be handled by the swapping function instead. */ + syment->n_value = 0; + if (syment->n_scnum == 0) + return COFF_SYMBOL_UNDEFINED; + return COFF_SYMBOL_PE_SECTION; + } +#endif /* COFF_WITH_PE */ + + /* If it is not a global symbol, we presume it is a local symbol. */ + if (syment->n_scnum == 0) + { + char buf[SYMNMLEN + 1]; + + (*_bfd_error_handler) + (_("warning: %B: local symbol `%s' has no section"), + abfd, _bfd_coff_internal_syment_name (abfd, syment, buf)); + } + + return COFF_SYMBOL_LOCAL; +} + +/* +SUBSUBSECTION + Reading relocations + + Coff relocations are easily transformed into the internal BFD form + (@code{arelent}). + + Reading a coff relocation table is done in the following stages: + + o Read the entire coff relocation table into memory. + + o Process each relocation in turn; first swap it from the + external to the internal form. + + o Turn the symbol referenced in the relocation's symbol index + into a pointer into the canonical symbol table. + This table is the same as the one returned by a call to + @code{bfd_canonicalize_symtab}. The back end will call that + routine and save the result if a canonicalization hasn't been done. + + o The reloc index is turned into a pointer to a howto + structure, in a back end specific way. For instance, the 386 + and 960 use the @code{r_type} to directly produce an index + into a howto table vector; the 88k subtracts a number from the + @code{r_type} field and creates an addend field. +*/ + +#ifndef CALC_ADDEND +#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ + { \ + coff_symbol_type *coffsym = NULL; \ + \ + if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ + coffsym = (obj_symbols (abfd) \ + + (cache_ptr->sym_ptr_ptr - symbols)); \ + else if (ptr) \ + coffsym = coff_symbol_from (abfd, ptr); \ + if (coffsym != NULL \ + && coffsym->native->is_sym \ + && coffsym->native->u.syment.n_scnum == 0) \ + cache_ptr->addend = 0; \ + else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ + && ptr->section != NULL) \ + cache_ptr->addend = - (ptr->section->vma + ptr->value); \ + else \ + cache_ptr->addend = 0; \ + } +#endif + +static bfd_boolean +coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols) +{ + RELOC *native_relocs; + arelent *reloc_cache; + arelent *cache_ptr; + unsigned int idx; + bfd_size_type amt; + + if (asect->relocation) + return TRUE; + if (asect->reloc_count == 0) + return TRUE; + if (asect->flags & SEC_CONSTRUCTOR) + return TRUE; + if (!coff_slurp_symbol_table (abfd)) + return FALSE; + + amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count; + native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt); + amt = (bfd_size_type) asect->reloc_count * sizeof (arelent); + reloc_cache = (arelent *) bfd_alloc (abfd, amt); + + if (reloc_cache == NULL || native_relocs == NULL) + return FALSE; + + for (idx = 0; idx < asect->reloc_count; idx++) + { + struct internal_reloc dst; + struct external_reloc *src; +#ifndef RELOC_PROCESSING + asymbol *ptr; +#endif + + cache_ptr = reloc_cache + idx; + src = native_relocs + idx; + + dst.r_offset = 0; + coff_swap_reloc_in (abfd, src, &dst); + +#ifdef RELOC_PROCESSING + RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect); +#else + cache_ptr->address = dst.r_vaddr; + + if (dst.r_symndx != -1) + { + if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd)) + { + (*_bfd_error_handler) + (_("%B: warning: illegal symbol index %ld in relocs"), + abfd, (long) dst.r_symndx); + cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; + ptr = NULL; + } + else + { + cache_ptr->sym_ptr_ptr = (symbols + + obj_convert (abfd)[dst.r_symndx]); + ptr = *(cache_ptr->sym_ptr_ptr); + } + } + else + { + cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; + ptr = NULL; + } + + /* The symbols definitions that we have read in have been + relocated as if their sections started at 0. But the offsets + refering to the symbols in the raw data have not been + modified, so we have to have a negative addend to compensate. + + Note that symbols which used to be common must be left alone. */ + + /* Calculate any reloc addend by looking at the symbol. */ + CALC_ADDEND (abfd, ptr, dst, cache_ptr); + (void) ptr; + + cache_ptr->address -= asect->vma; + /* !! cache_ptr->section = NULL;*/ + + /* Fill in the cache_ptr->howto field from dst.r_type. */ + RTYPE2HOWTO (cache_ptr, &dst); +#endif /* RELOC_PROCESSING */ + + if (cache_ptr->howto == NULL) + { + (*_bfd_error_handler) + (_("%B: illegal relocation type %d at address 0x%lx"), + abfd, dst.r_type, (long) dst.r_vaddr); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + + asect->relocation = reloc_cache; + return TRUE; +} + +#ifndef coff_rtype_to_howto +#ifdef RTYPE2HOWTO + +/* Get the howto structure for a reloc. This is only used if the file + including this one defines coff_relocate_section to be + _bfd_coff_generic_relocate_section, so it is OK if it does not + always work. It is the responsibility of the including file to + make sure it is reasonable if it is needed. */ + +static reloc_howto_type * +coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, + asection *sec ATTRIBUTE_UNUSED, + struct internal_reloc *rel, + struct coff_link_hash_entry *h ATTRIBUTE_UNUSED, + struct internal_syment *sym ATTRIBUTE_UNUSED, + bfd_vma *addendp ATTRIBUTE_UNUSED) +{ + arelent genrel; + + genrel.howto = NULL; + RTYPE2HOWTO (&genrel, rel); + return genrel.howto; +} + +#else /* ! defined (RTYPE2HOWTO) */ + +#define coff_rtype_to_howto NULL + +#endif /* ! defined (RTYPE2HOWTO) */ +#endif /* ! defined (coff_rtype_to_howto) */ + +/* This is stupid. This function should be a boolean predicate. */ + +static long +coff_canonicalize_reloc (bfd * abfd, + sec_ptr section, + arelent ** relptr, + asymbol ** symbols) +{ + arelent *tblptr = section->relocation; + unsigned int count = 0; + + if (section->flags & SEC_CONSTRUCTOR) + { + /* This section has relocs made up by us, they are not in the + file, so take them out of their chain and place them into + the data area provided. */ + arelent_chain *chain = section->constructor_chain; + + for (count = 0; count < section->reloc_count; count++) + { + *relptr++ = &chain->relent; + chain = chain->next; + } + } + else + { + if (! coff_slurp_reloc_table (abfd, section, symbols)) + return -1; + + tblptr = section->relocation; + + for (; count++ < section->reloc_count;) + *relptr++ = tblptr++; + } + *relptr = 0; + return section->reloc_count; +} + +#ifndef coff_reloc16_estimate +#define coff_reloc16_estimate dummy_reloc16_estimate + +static int +dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED, + asection *input_section ATTRIBUTE_UNUSED, + arelent *reloc ATTRIBUTE_UNUSED, + unsigned int shrink ATTRIBUTE_UNUSED, + struct bfd_link_info *link_info ATTRIBUTE_UNUSED) +{ + abort (); + return 0; +} + +#endif + +#ifndef coff_reloc16_extra_cases + +#define coff_reloc16_extra_cases dummy_reloc16_extra_cases + +/* This works even if abort is not declared in any header file. */ + +static void +dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED, + struct bfd_link_info *link_info ATTRIBUTE_UNUSED, + struct bfd_link_order *link_order ATTRIBUTE_UNUSED, + arelent *reloc ATTRIBUTE_UNUSED, + bfd_byte *data ATTRIBUTE_UNUSED, + unsigned int *src_ptr ATTRIBUTE_UNUSED, + unsigned int *dst_ptr ATTRIBUTE_UNUSED) +{ + abort (); +} +#endif + +/* If coff_relocate_section is defined, we can use the optimized COFF + backend linker. Otherwise we must continue to use the old linker. */ + +#ifdef coff_relocate_section + +#ifndef coff_bfd_link_hash_table_create +#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create +#endif +#ifndef coff_bfd_link_add_symbols +#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols +#endif +#ifndef coff_bfd_final_link +#define coff_bfd_final_link _bfd_coff_final_link +#endif + +#else /* ! defined (coff_relocate_section) */ + +#define coff_relocate_section NULL +#ifndef coff_bfd_link_hash_table_create +#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create +#endif +#ifndef coff_bfd_link_add_symbols +#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols +#endif +#define coff_bfd_final_link _bfd_generic_final_link + +#endif /* ! defined (coff_relocate_section) */ + +#define coff_bfd_link_just_syms _bfd_generic_link_just_syms +#define coff_bfd_copy_link_hash_symbol_type \ + _bfd_generic_copy_link_hash_symbol_type +#define coff_bfd_link_split_section _bfd_generic_link_split_section + +#ifndef coff_start_final_link +#define coff_start_final_link NULL +#endif + +#ifndef coff_adjust_symndx +#define coff_adjust_symndx NULL +#endif + +#ifndef coff_link_add_one_symbol +#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol +#endif + +#ifndef coff_link_output_has_begun + +static bfd_boolean +coff_link_output_has_begun (bfd * abfd, + struct coff_final_link_info * info ATTRIBUTE_UNUSED) +{ + return abfd->output_has_begun; +} +#endif + +#ifndef coff_final_link_postscript + +static bfd_boolean +coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED, + struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED) +{ + return TRUE; +} +#endif + +#ifndef coff_SWAP_aux_in +#define coff_SWAP_aux_in coff_swap_aux_in +#endif +#ifndef coff_SWAP_sym_in +#define coff_SWAP_sym_in coff_swap_sym_in +#endif +#ifndef coff_SWAP_lineno_in +#define coff_SWAP_lineno_in coff_swap_lineno_in +#endif +#ifndef coff_SWAP_aux_out +#define coff_SWAP_aux_out coff_swap_aux_out +#endif +#ifndef coff_SWAP_sym_out +#define coff_SWAP_sym_out coff_swap_sym_out +#endif +#ifndef coff_SWAP_lineno_out +#define coff_SWAP_lineno_out coff_swap_lineno_out +#endif +#ifndef coff_SWAP_reloc_out +#define coff_SWAP_reloc_out coff_swap_reloc_out +#endif +#ifndef coff_SWAP_filehdr_out +#define coff_SWAP_filehdr_out coff_swap_filehdr_out +#endif +#ifndef coff_SWAP_aouthdr_out +#define coff_SWAP_aouthdr_out coff_swap_aouthdr_out +#endif +#ifndef coff_SWAP_scnhdr_out +#define coff_SWAP_scnhdr_out coff_swap_scnhdr_out +#endif +#ifndef coff_SWAP_reloc_in +#define coff_SWAP_reloc_in coff_swap_reloc_in +#endif +#ifndef coff_SWAP_filehdr_in +#define coff_SWAP_filehdr_in coff_swap_filehdr_in +#endif +#ifndef coff_SWAP_aouthdr_in +#define coff_SWAP_aouthdr_in coff_swap_aouthdr_in +#endif +#ifndef coff_SWAP_scnhdr_in +#define coff_SWAP_scnhdr_in coff_swap_scnhdr_in +#endif + +static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED = +{ + coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, + coff_SWAP_aux_out, coff_SWAP_sym_out, + coff_SWAP_lineno_out, coff_SWAP_reloc_out, + coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, + coff_SWAP_scnhdr_out, + FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, +#ifdef COFF_LONG_FILENAMES + TRUE, +#else + FALSE, +#endif + COFF_DEFAULT_LONG_SECTION_NAMES, + COFF_DEFAULT_SECTION_ALIGNMENT_POWER, +#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS + TRUE, +#else + FALSE, +#endif +#ifdef COFF_DEBUG_STRING_WIDE_PREFIX + 4, +#else + 2, +#endif + 32768, + coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, + coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, + coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, + coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, + coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, + coff_classify_symbol, coff_compute_section_file_positions, + coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, + coff_adjust_symndx, coff_link_add_one_symbol, + coff_link_output_has_begun, coff_final_link_postscript, + bfd_pe_print_pdata +}; + +#ifdef TICOFF +/* COFF0 differs in file/section header size and relocation entry size. */ + +static bfd_coff_backend_data ticoff0_swap_table = +{ + coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, + coff_SWAP_aux_out, coff_SWAP_sym_out, + coff_SWAP_lineno_out, coff_SWAP_reloc_out, + coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, + coff_SWAP_scnhdr_out, + FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN, +#ifdef COFF_LONG_FILENAMES + TRUE, +#else + FALSE, +#endif + COFF_DEFAULT_LONG_SECTION_NAMES, + COFF_DEFAULT_SECTION_ALIGNMENT_POWER, +#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS + TRUE, +#else + FALSE, +#endif +#ifdef COFF_DEBUG_STRING_WIDE_PREFIX + 4, +#else + 2, +#endif + 32768, + coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, + coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook, + coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, + coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, + coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, + coff_classify_symbol, coff_compute_section_file_positions, + coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, + coff_adjust_symndx, coff_link_add_one_symbol, + coff_link_output_has_begun, coff_final_link_postscript, + bfd_pe_print_pdata +}; +#endif + +#ifdef TICOFF +/* COFF1 differs in section header size. */ + +static bfd_coff_backend_data ticoff1_swap_table = +{ + coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in, + coff_SWAP_aux_out, coff_SWAP_sym_out, + coff_SWAP_lineno_out, coff_SWAP_reloc_out, + coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out, + coff_SWAP_scnhdr_out, + FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, +#ifdef COFF_LONG_FILENAMES + TRUE, +#else + FALSE, +#endif + COFF_DEFAULT_LONG_SECTION_NAMES, + COFF_DEFAULT_SECTION_ALIGNMENT_POWER, +#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS + TRUE, +#else + FALSE, +#endif +#ifdef COFF_DEBUG_STRING_WIDE_PREFIX + 4, +#else + 2, +#endif + 32768, + coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, + coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook, + coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, + coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, + coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, + coff_classify_symbol, coff_compute_section_file_positions, + coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, + coff_adjust_symndx, coff_link_add_one_symbol, + coff_link_output_has_begun, coff_final_link_postscript, + bfd_pe_print_pdata /* huh */ +}; +#endif + +#ifdef COFF_WITH_PE_BIGOBJ +/* The UID for bigobj files. */ + +static const char header_bigobj_classid[16] = +{ + 0xC7, 0xA1, 0xBA, 0xD1, + 0xEE, 0xBA, + 0xa9, 0x4b, + 0xAF, 0x20, + 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8 +}; + +/* Swap routines. */ + +static void +coff_bigobj_swap_filehdr_in (bfd * abfd, void * src, void * dst) +{ + struct external_ANON_OBJECT_HEADER_BIGOBJ *filehdr_src = + (struct external_ANON_OBJECT_HEADER_BIGOBJ *) src; + struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; + + filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->Machine); + filehdr_dst->f_nscns = H_GET_32 (abfd, filehdr_src->NumberOfSections); + filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->TimeDateStamp); + filehdr_dst->f_symptr = + GET_FILEHDR_SYMPTR (abfd, filehdr_src->PointerToSymbolTable); + filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->NumberOfSymbols); + filehdr_dst->f_opthdr = 0; + filehdr_dst->f_flags = 0; + + /* Check other magic numbers. */ + if (H_GET_16 (abfd, filehdr_src->Sig1) != IMAGE_FILE_MACHINE_UNKNOWN + || H_GET_16 (abfd, filehdr_src->Sig2) != 0xffff + || H_GET_16 (abfd, filehdr_src->Version) != 2 + || memcmp (filehdr_src->ClassID, header_bigobj_classid, 16) != 0) + filehdr_dst->f_opthdr = 0xffff; + + /* Note that CLR metadata are ignored. */ +} + +static unsigned int +coff_bigobj_swap_filehdr_out (bfd *abfd, void * in, void * out) +{ + struct internal_filehdr *filehdr_in = (struct internal_filehdr *) in; + struct external_ANON_OBJECT_HEADER_BIGOBJ *filehdr_out = + (struct external_ANON_OBJECT_HEADER_BIGOBJ *) out; + + memset (filehdr_out, 0, sizeof (*filehdr_out)); + + H_PUT_16 (abfd, IMAGE_FILE_MACHINE_UNKNOWN, filehdr_out->Sig1); + H_PUT_16 (abfd, 0xffff, filehdr_out->Sig2); + H_PUT_16 (abfd, 2, filehdr_out->Version); + memcpy (filehdr_out->ClassID, header_bigobj_classid, 16); + H_PUT_16 (abfd, filehdr_in->f_magic, filehdr_out->Machine); + H_PUT_32 (abfd, filehdr_in->f_nscns, filehdr_out->NumberOfSections); + H_PUT_32 (abfd, filehdr_in->f_timdat, filehdr_out->TimeDateStamp); + PUT_FILEHDR_SYMPTR (abfd, filehdr_in->f_symptr, + filehdr_out->PointerToSymbolTable); + H_PUT_32 (abfd, filehdr_in->f_nsyms, filehdr_out->NumberOfSymbols); + + return bfd_coff_filhsz (abfd); +} + +static void +coff_bigobj_swap_sym_in (bfd * abfd, void * ext1, void * in1) +{ + SYMENT_BIGOBJ *ext = (SYMENT_BIGOBJ *) ext1; + struct internal_syment *in = (struct internal_syment *) in1; + + if (ext->e.e_name[0] == 0) + { + in->_n._n_n._n_zeroes = 0; + in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e.e.e_offset); + } + else + { +#if SYMNMLEN != E_SYMNMLEN +#error we need to cope with truncating or extending SYMNMLEN +#else + memcpy (in->_n._n_name, ext->e.e_name, SYMNMLEN); +#endif + } + + in->n_value = H_GET_32 (abfd, ext->e_value); + in->n_scnum = H_GET_32 (abfd, ext->e_scnum); + in->n_type = H_GET_16 (abfd, ext->e_type); + in->n_sclass = H_GET_8 (abfd, ext->e_sclass); + in->n_numaux = H_GET_8 (abfd, ext->e_numaux); +} + +static unsigned int +coff_bigobj_swap_sym_out (bfd * abfd, void * inp, void * extp) +{ + struct internal_syment *in = (struct internal_syment *) inp; + SYMENT_BIGOBJ *ext = (SYMENT_BIGOBJ *) extp; + + if (in->_n._n_name[0] == 0) + { + H_PUT_32 (abfd, 0, ext->e.e.e_zeroes); + H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e.e.e_offset); + } + else + { +#if SYMNMLEN != E_SYMNMLEN +#error we need to cope with truncating or extending SYMNMLEN +#else + memcpy (ext->e.e_name, in->_n._n_name, SYMNMLEN); +#endif + } + + H_PUT_32 (abfd, in->n_value, ext->e_value); + H_PUT_32 (abfd, in->n_scnum, ext->e_scnum); + + H_PUT_16 (abfd, in->n_type, ext->e_type); + H_PUT_8 (abfd, in->n_sclass, ext->e_sclass); + H_PUT_8 (abfd, in->n_numaux, ext->e_numaux); + + return SYMESZ_BIGOBJ; +} + +static void +coff_bigobj_swap_aux_in (bfd *abfd, + void * ext1, + int type, + int in_class, + int indx, + int numaux, + void * in1) +{ + AUXENT_BIGOBJ *ext = (AUXENT_BIGOBJ *) ext1; + union internal_auxent *in = (union internal_auxent *) in1; + + switch (in_class) + { + case C_FILE: + if (numaux > 1) + { + if (indx == 0) + memcpy (in->x_file.x_fname, ext->File.Name, + numaux * sizeof (AUXENT_BIGOBJ)); + } + else + memcpy (in->x_file.x_fname, ext->File.Name, sizeof (ext->File.Name)); + break; + + case C_STAT: + case C_LEAFSTAT: + case C_HIDDEN: + if (type == T_NULL) + { + in->x_scn.x_scnlen = H_GET_32 (abfd, ext->Section.Length); + in->x_scn.x_nreloc = + H_GET_16 (abfd, ext->Section.NumberOfRelocations); + in->x_scn.x_nlinno = + H_GET_16 (abfd, ext->Section.NumberOfLinenumbers); + in->x_scn.x_checksum = H_GET_32 (abfd, ext->Section.Checksum); + in->x_scn.x_associated = H_GET_16 (abfd, ext->Section.Number) + | (H_GET_16 (abfd, ext->Section.HighNumber) << 16); + in->x_scn.x_comdat = H_GET_8 (abfd, ext->Section.Selection); + return; + } + break; + + default: + in->x_sym.x_tagndx.l = H_GET_32 (abfd, ext->Sym.WeakDefaultSymIndex); + /* Characteristics is ignored. */ + break; + } +} + +static unsigned int +coff_bigobj_swap_aux_out (bfd * abfd, + void * inp, + int type, + int in_class, + int indx ATTRIBUTE_UNUSED, + int numaux ATTRIBUTE_UNUSED, + void * extp) +{ + union internal_auxent * in = (union internal_auxent *) inp; + AUXENT_BIGOBJ *ext = (AUXENT_BIGOBJ *) extp; + + memset (ext, 0, AUXESZ); + + switch (in_class) + { + case C_FILE: + memcpy (ext->File.Name, in->x_file.x_fname, sizeof (ext->File.Name)); + + return AUXESZ; + + case C_STAT: + case C_LEAFSTAT: + case C_HIDDEN: + if (type == T_NULL) + { + H_PUT_32 (abfd, in->x_scn.x_scnlen, ext->Section.Length); + H_PUT_16 (abfd, in->x_scn.x_nreloc, + ext->Section.NumberOfRelocations); + H_PUT_16 (abfd, in->x_scn.x_nlinno, + ext->Section.NumberOfLinenumbers); + H_PUT_32 (abfd, in->x_scn.x_checksum, ext->Section.Checksum); + H_PUT_16 (abfd, in->x_scn.x_associated & 0xffff, + ext->Section.Number); + H_PUT_16 (abfd, (in->x_scn.x_associated >> 16), + ext->Section.HighNumber); + H_PUT_8 (abfd, in->x_scn.x_comdat, ext->Section.Selection); + return AUXESZ; + } + break; + } + + H_PUT_32 (abfd, in->x_sym.x_tagndx.l, ext->Sym.WeakDefaultSymIndex); + H_PUT_32 (abfd, 1, ext->Sym.WeakSearchType); + + return AUXESZ; +} + +static bfd_coff_backend_data bigobj_swap_table = +{ + coff_bigobj_swap_aux_in, coff_bigobj_swap_sym_in, coff_SWAP_lineno_in, + coff_bigobj_swap_aux_out, coff_bigobj_swap_sym_out, + coff_SWAP_lineno_out, coff_SWAP_reloc_out, + coff_bigobj_swap_filehdr_out, coff_SWAP_aouthdr_out, + coff_SWAP_scnhdr_out, + FILHSZ_BIGOBJ, AOUTSZ, SCNHSZ, SYMESZ_BIGOBJ, AUXESZ_BIGOBJ, + RELSZ, LINESZ, FILNMLEN_BIGOBJ, + TRUE, + COFF_DEFAULT_LONG_SECTION_NAMES, + COFF_DEFAULT_SECTION_ALIGNMENT_POWER, + FALSE, + 2, + 1U << 31, + coff_bigobj_swap_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in, + coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, + coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, + coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, + coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, + coff_classify_symbol, coff_compute_section_file_positions, + coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, + coff_adjust_symndx, coff_link_add_one_symbol, + coff_link_output_has_begun, coff_final_link_postscript, + bfd_pe_print_pdata /* huh */ +}; + +#endif /* COFF_WITH_PE_BIGOBJ */ + +#ifndef coff_close_and_cleanup +#define coff_close_and_cleanup _bfd_generic_close_and_cleanup +#endif + +#ifndef coff_bfd_free_cached_info +#define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info +#endif + +#ifndef coff_get_section_contents +#define coff_get_section_contents _bfd_generic_get_section_contents +#endif + +#ifndef coff_bfd_copy_private_symbol_data +#define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data +#endif + +#ifndef coff_bfd_copy_private_header_data +#define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data +#endif + +#ifndef coff_bfd_copy_private_section_data +#define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data +#endif + +#ifndef coff_bfd_copy_private_bfd_data +#define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data +#endif + +#ifndef coff_bfd_merge_private_bfd_data +#define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data +#endif + +#ifndef coff_bfd_set_private_flags +#define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags +#endif + +#ifndef coff_bfd_print_private_bfd_data +#define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data +#endif + +#ifndef coff_bfd_is_local_label_name +#define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name +#endif + +#ifndef coff_bfd_is_target_special_symbol +#define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) +#endif + +#ifndef coff_read_minisymbols +#define coff_read_minisymbols _bfd_generic_read_minisymbols +#endif + +#ifndef coff_minisymbol_to_symbol +#define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol +#endif + +/* The reloc lookup routine must be supplied by each individual COFF + backend. */ +#ifndef coff_bfd_reloc_type_lookup +#define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup +#endif +#ifndef coff_bfd_reloc_name_lookup +#define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup +#endif + +#ifndef coff_bfd_get_relocated_section_contents +#define coff_bfd_get_relocated_section_contents \ + bfd_generic_get_relocated_section_contents +#endif + +#ifndef coff_bfd_relax_section +#define coff_bfd_relax_section bfd_generic_relax_section +#endif + +#ifndef coff_bfd_gc_sections +#define coff_bfd_gc_sections bfd_generic_gc_sections +#endif + +#ifndef coff_bfd_lookup_section_flags +#define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags +#endif + +#ifndef coff_bfd_merge_sections +#define coff_bfd_merge_sections bfd_generic_merge_sections +#endif + +#ifndef coff_bfd_is_group_section +#define coff_bfd_is_group_section bfd_generic_is_group_section +#endif + +#ifndef coff_bfd_discard_group +#define coff_bfd_discard_group bfd_generic_discard_group +#endif + +#ifndef coff_section_already_linked +#define coff_section_already_linked \ + _bfd_coff_section_already_linked +#endif + +#ifndef coff_bfd_define_common_symbol +#define coff_bfd_define_common_symbol bfd_generic_define_common_symbol +#endif + +#define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ +const bfd_target VAR = \ +{ \ + NAME , \ + bfd_target_coff_flavour, \ + BFD_ENDIAN_BIG, /* Data byte order is big. */ \ + BFD_ENDIAN_BIG, /* Header byte order is big. */ \ + /* object flags */ \ + (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ + HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ + /* section flags */ \ + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ + UNDER, /* Leading symbol underscore. */ \ + '/', /* AR_pad_char. */ \ + 15, /* AR_max_namelen. */ \ + 0, /* match priority. */ \ + \ + /* Data conversion functions. */ \ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ + bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ + bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ + \ + /* Header conversion functions. */ \ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ + bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ + bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ + \ + /* bfd_check_format. */ \ + { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ + _bfd_dummy_target }, \ + /* bfd_set_format. */ \ + { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ + /* bfd_write_contents. */ \ + { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ + bfd_false }, \ + \ + BFD_JUMP_TABLE_GENERIC (coff), \ + BFD_JUMP_TABLE_COPY (coff), \ + BFD_JUMP_TABLE_CORE (_bfd_nocore), \ + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ + BFD_JUMP_TABLE_SYMBOLS (coff), \ + BFD_JUMP_TABLE_RELOCS (coff), \ + BFD_JUMP_TABLE_WRITE (coff), \ + BFD_JUMP_TABLE_LINK (coff), \ + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ + \ + ALTERNATIVE, \ + \ + SWAP_TABLE \ +}; + +#define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ +const bfd_target VAR = \ +{ \ + NAME , \ + bfd_target_coff_flavour, \ + BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \ + BFD_ENDIAN_BIG, /* Header byte order is big. */ \ + /* object flags */ \ + (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ + HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ + /* section flags */ \ + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ + UNDER, /* Leading symbol underscore. */ \ + '/', /* AR_pad_char. */ \ + 15, /* AR_max_namelen. */ \ + 0, /* match priority. */ \ + \ + /* Data conversion functions. */ \ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ + bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ + bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ + \ + /* Header conversion functions. */ \ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, \ + bfd_getb32, bfd_getb_signed_32, bfd_putb32, \ + bfd_getb16, bfd_getb_signed_16, bfd_putb16, \ + \ + /* bfd_check_format. */ \ + { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ + _bfd_dummy_target }, \ + /* bfd_set_format. */ \ + { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ + /* bfd_write_contents. */ \ + { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ + bfd_false }, \ + \ + BFD_JUMP_TABLE_GENERIC (coff), \ + BFD_JUMP_TABLE_COPY (coff), \ + BFD_JUMP_TABLE_CORE (_bfd_nocore), \ + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ + BFD_JUMP_TABLE_SYMBOLS (coff), \ + BFD_JUMP_TABLE_RELOCS (coff), \ + BFD_JUMP_TABLE_WRITE (coff), \ + BFD_JUMP_TABLE_LINK (coff), \ + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ + \ + ALTERNATIVE, \ + \ + SWAP_TABLE \ +}; + +#define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \ +const bfd_target VAR = \ +{ \ + NAME , \ + bfd_target_coff_flavour, \ + BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \ + BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \ + /* object flags */ \ + (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \ + HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \ + /* section flags */ \ + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\ + UNDER, /* Leading symbol underscore. */ \ + '/', /* AR_pad_char. */ \ + 15, /* AR_max_namelen. */ \ + 0, /* match priority. */ \ + \ + /* Data conversion functions. */ \ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ + bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ + bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ + /* Header conversion functions. */ \ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, \ + bfd_getl32, bfd_getl_signed_32, bfd_putl32, \ + bfd_getl16, bfd_getl_signed_16, bfd_putl16, \ + /* bfd_check_format. */ \ + { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \ + _bfd_dummy_target }, \ + /* bfd_set_format. */ \ + { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \ + /* bfd_write_contents. */ \ + { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \ + bfd_false }, \ + \ + BFD_JUMP_TABLE_GENERIC (coff), \ + BFD_JUMP_TABLE_COPY (coff), \ + BFD_JUMP_TABLE_CORE (_bfd_nocore), \ + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \ + BFD_JUMP_TABLE_SYMBOLS (coff), \ + BFD_JUMP_TABLE_RELOCS (coff), \ + BFD_JUMP_TABLE_WRITE (coff), \ + BFD_JUMP_TABLE_LINK (coff), \ + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \ + \ + ALTERNATIVE, \ + \ + SWAP_TABLE \ +}; 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