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Diffstat (limited to 'bfd/targets.c')
| -rw-r--r-- | bfd/targets.c | 1079 |
1 files changed, 1079 insertions, 0 deletions
diff --git a/bfd/targets.c b/bfd/targets.c new file mode 100644 index 00000000000..bb6e51d854e --- /dev/null +++ b/bfd/targets.c @@ -0,0 +1,1079 @@ +/* Generic target-file-type support for the BFD library. + Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998 + 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "fnmatch.h" + +/* +SECTION + Targets + +DESCRIPTION + Each port of BFD to a different machine requries the creation + of a target back end. All the back end provides to the root + part of BFD is a structure containing pointers to functions + which perform certain low level operations on files. BFD + translates the applications's requests through a pointer into + calls to the back end routines. + + When a file is opened with <<bfd_openr>>, its format and + target are unknown. BFD uses various mechanisms to determine + how to interpret the file. The operations performed are: + + o Create a BFD by calling the internal routine + <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the + target string supplied to <<bfd_openr>> and the new BFD pointer. + + o If a null target string was provided to <<bfd_find_target>>, + look up the environment variable <<GNUTARGET>> and use + that as the target string. + + o If the target string is still <<NULL>>, or the target string is + <<default>>, then use the first item in the target vector + as the target type, and set <<target_defaulted>> in the BFD to + cause <<bfd_check_format>> to loop through all the targets. + @xref{bfd_target}. @xref{Formats}. + + o Otherwise, inspect the elements in the target vector + one by one, until a match on target name is found. When found, + use it. + + o Otherwise return the error <<bfd_error_invalid_target>> to + <<bfd_openr>>. + + o <<bfd_openr>> attempts to open the file using + <<bfd_open_file>>, and returns the BFD. + + Once the BFD has been opened and the target selected, the file + format may be determined. This is done by calling + <<bfd_check_format>> on the BFD with a suggested format. + If <<target_defaulted>> has been set, each possible target + type is tried to see if it recognizes the specified format. + <<bfd_check_format>> returns <<true>> when the caller guesses right. +@menu +@* bfd_target:: +@end menu +*/ + + +/* + +INODE + bfd_target, , Targets, Targets +DOCDD +SUBSECTION + bfd_target + +DESCRIPTION + This structure contains everything that BFD knows about a + target. It includes things like its byte order, name, and which + routines to call to do various operations. + + Every BFD points to a target structure with its <<xvec>> + member. + + The macros below are used to dispatch to functions through the + <<bfd_target>> vector. They are used in a number of macros further + down in @file{bfd.h}, and are also used when calling various + routines by hand inside the BFD implementation. The @var{arglist} + argument must be parenthesized; it contains all the arguments + to the called function. + + They make the documentation (more) unpleasant to read, so if + someone wants to fix this and not break the above, please do. + +.#define BFD_SEND(bfd, message, arglist) \ +. ((*((bfd)->xvec->message)) arglist) +. +.#ifdef DEBUG_BFD_SEND +.#undef BFD_SEND +.#define BFD_SEND(bfd, message, arglist) \ +. (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ +. ((*((bfd)->xvec->message)) arglist) : \ +. (bfd_assert (__FILE__,__LINE__), NULL)) +.#endif + + For operations which index on the BFD format: + +.#define BFD_SEND_FMT(bfd, message, arglist) \ +. (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) +. +.#ifdef DEBUG_BFD_SEND +.#undef BFD_SEND_FMT +.#define BFD_SEND_FMT(bfd, message, arglist) \ +. (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ +. (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \ +. (bfd_assert (__FILE__,__LINE__), NULL)) +.#endif + + This is the structure which defines the type of BFD this is. The + <<xvec>> member of the struct <<bfd>> itself points here. Each + module that implements access to a different target under BFD, + defines one of these. + + + FIXME, these names should be rationalised with the names of + the entry points which call them. Too bad we can't have one + macro to define them both! + +.enum bfd_flavour { +. bfd_target_unknown_flavour, +. bfd_target_aout_flavour, +. bfd_target_coff_flavour, +. bfd_target_ecoff_flavour, +. bfd_target_elf_flavour, +. bfd_target_ieee_flavour, +. bfd_target_nlm_flavour, +. bfd_target_oasys_flavour, +. bfd_target_tekhex_flavour, +. bfd_target_srec_flavour, +. bfd_target_ihex_flavour, +. bfd_target_som_flavour, +. bfd_target_os9k_flavour, +. bfd_target_versados_flavour, +. bfd_target_msdos_flavour, +. bfd_target_ovax_flavour, +. bfd_target_evax_flavour +.}; +. +.enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN }; +. +.{* Forward declaration. *} +.typedef struct bfd_link_info _bfd_link_info; +. +.typedef struct bfd_target +.{ + +Identifies the kind of target, e.g., SunOS4, Ultrix, etc. + +. char *name; + +The "flavour" of a back end is a general indication about the contents +of a file. + +. enum bfd_flavour flavour; + +The order of bytes within the data area of a file. + +. enum bfd_endian byteorder; + +The order of bytes within the header parts of a file. + +. enum bfd_endian header_byteorder; + +A mask of all the flags which an executable may have set - +from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>. + +. flagword object_flags; + +A mask of all the flags which a section may have set - from +the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>. + +. flagword section_flags; + +The character normally found at the front of a symbol +(if any), perhaps `_'. + +. char symbol_leading_char; + +The pad character for file names within an archive header. + +. char ar_pad_char; + +The maximum number of characters in an archive header. + +. unsigned short ar_max_namelen; + +Entries for byte swapping for data. These are different from the other +entry points, since they don't take a BFD asthe first argument. +Certain other handlers could do the same. + +. bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *)); +. bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *)); +. void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *)); +. bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *)); +. bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *)); +. void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *)); +. bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *)); +. bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *)); +. void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *)); + +Byte swapping for the headers + +. bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *)); +. bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *)); +. void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *)); +. bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *)); +. bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *)); +. void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *)); +. bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *)); +. bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *)); +. void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *)); + +Format dependent routines: these are vectors of entry points +within the target vector structure, one for each format to check. + +Check the format of a file being read. Return a <<bfd_target *>> or zero. + +. const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *)); + +Set the format of a file being written. + +. boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *)); + +Write cached information into a file being written, at <<bfd_close>>. + +. boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *)); + +The general target vector. + +. +. {* Generic entry points. *} +.#define BFD_JUMP_TABLE_GENERIC(NAME)\ +.CAT(NAME,_close_and_cleanup),\ +.CAT(NAME,_bfd_free_cached_info),\ +.CAT(NAME,_new_section_hook),\ +.CAT(NAME,_get_section_contents),\ +.CAT(NAME,_get_section_contents_in_window) +. +. {* Called when the BFD is being closed to do any necessary cleanup. *} +. boolean (*_close_and_cleanup) PARAMS ((bfd *)); +. {* Ask the BFD to free all cached information. *} +. boolean (*_bfd_free_cached_info) PARAMS ((bfd *)); +. {* Called when a new section is created. *} +. boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr)); +. {* Read the contents of a section. *} +. boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR, +. file_ptr, bfd_size_type)); +. boolean (*_bfd_get_section_contents_in_window) +. PARAMS ((bfd *, sec_ptr, bfd_window *, +. file_ptr, bfd_size_type)); +. +. {* Entry points to copy private data. *} +.#define BFD_JUMP_TABLE_COPY(NAME)\ +.CAT(NAME,_bfd_copy_private_bfd_data),\ +.CAT(NAME,_bfd_merge_private_bfd_data),\ +.CAT(NAME,_bfd_copy_private_section_data),\ +.CAT(NAME,_bfd_copy_private_symbol_data),\ +.CAT(NAME,_bfd_set_private_flags),\ +.CAT(NAME,_bfd_print_private_bfd_data)\ +. {* Called to copy BFD general private data from one object file +. to another. *} +. boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *)); +. {* Called to merge BFD general private data from one object file +. to a common output file when linking. *} +. boolean (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *)); +. {* Called to copy BFD private section data from one object file +. to another. *} +. boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr, +. bfd *, sec_ptr)); +. {* Called to copy BFD private symbol data from one symbol +. to another. *} +. boolean (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *, +. bfd *, asymbol *)); +. {* Called to set private backend flags *} +. boolean (*_bfd_set_private_flags) PARAMS ((bfd *, flagword)); +. +. {* Called to print private BFD data *} +. boolean (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR)); +. +. {* Core file entry points. *} +.#define BFD_JUMP_TABLE_CORE(NAME)\ +.CAT(NAME,_core_file_failing_command),\ +.CAT(NAME,_core_file_failing_signal),\ +.CAT(NAME,_core_file_matches_executable_p) +. char * (*_core_file_failing_command) PARAMS ((bfd *)); +. int (*_core_file_failing_signal) PARAMS ((bfd *)); +. boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *)); +. +. {* Archive entry points. *} +.#define BFD_JUMP_TABLE_ARCHIVE(NAME)\ +.CAT(NAME,_slurp_armap),\ +.CAT(NAME,_slurp_extended_name_table),\ +.CAT(NAME,_construct_extended_name_table),\ +.CAT(NAME,_truncate_arname),\ +.CAT(NAME,_write_armap),\ +.CAT(NAME,_read_ar_hdr),\ +.CAT(NAME,_openr_next_archived_file),\ +.CAT(NAME,_get_elt_at_index),\ +.CAT(NAME,_generic_stat_arch_elt),\ +.CAT(NAME,_update_armap_timestamp) +. boolean (*_bfd_slurp_armap) PARAMS ((bfd *)); +. boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *)); +. boolean (*_bfd_construct_extended_name_table) +. PARAMS ((bfd *, char **, bfd_size_type *, const char **)); +. void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *)); +. boolean (*write_armap) PARAMS ((bfd *arch, +. unsigned int elength, +. struct orl *map, +. unsigned int orl_count, +. int stridx)); +. PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *)); +. bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev)); +.#define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i)) +. bfd * (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex)); +. int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *)); +. boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *)); +. +. {* Entry points used for symbols. *} +.#define BFD_JUMP_TABLE_SYMBOLS(NAME)\ +.CAT(NAME,_get_symtab_upper_bound),\ +.CAT(NAME,_get_symtab),\ +.CAT(NAME,_make_empty_symbol),\ +.CAT(NAME,_print_symbol),\ +.CAT(NAME,_get_symbol_info),\ +.CAT(NAME,_bfd_is_local_label_name),\ +.CAT(NAME,_get_lineno),\ +.CAT(NAME,_find_nearest_line),\ +.CAT(NAME,_bfd_make_debug_symbol),\ +.CAT(NAME,_read_minisymbols),\ +.CAT(NAME,_minisymbol_to_symbol) +. long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *)); +. long (*_bfd_canonicalize_symtab) PARAMS ((bfd *, +. struct symbol_cache_entry **)); +. struct symbol_cache_entry * +. (*_bfd_make_empty_symbol) PARAMS ((bfd *)); +. void (*_bfd_print_symbol) PARAMS ((bfd *, PTR, +. struct symbol_cache_entry *, +. bfd_print_symbol_type)); +.#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e)) +. void (*_bfd_get_symbol_info) PARAMS ((bfd *, +. struct symbol_cache_entry *, +. symbol_info *)); +.#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e)) +. boolean (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *)); +. +. alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *)); +. boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd, +. struct sec *section, struct symbol_cache_entry **symbols, +. bfd_vma offset, CONST char **file, CONST char **func, +. unsigned int *line)); +. {* Back-door to allow format-aware applications to create debug symbols +. while using BFD for everything else. Currently used by the assembler +. when creating COFF files. *} +. asymbol * (*_bfd_make_debug_symbol) PARAMS (( +. bfd *abfd, +. void *ptr, +. unsigned long size)); +.#define bfd_read_minisymbols(b, d, m, s) \ +. BFD_SEND (b, _read_minisymbols, (b, d, m, s)) +. long (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *, +. unsigned int *)); +.#define bfd_minisymbol_to_symbol(b, d, m, f) \ +. BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f)) +. asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR, +. asymbol *)); +. +. {* Routines for relocs. *} +.#define BFD_JUMP_TABLE_RELOCS(NAME)\ +.CAT(NAME,_get_reloc_upper_bound),\ +.CAT(NAME,_canonicalize_reloc),\ +.CAT(NAME,_bfd_reloc_type_lookup) +. long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr)); +. long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **, +. struct symbol_cache_entry **)); +. {* See documentation on reloc types. *} +. reloc_howto_type * +. (*reloc_type_lookup) PARAMS ((bfd *abfd, +. bfd_reloc_code_real_type code)); +. +. {* Routines used when writing an object file. *} +.#define BFD_JUMP_TABLE_WRITE(NAME)\ +.CAT(NAME,_set_arch_mach),\ +.CAT(NAME,_set_section_contents) +. boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture, +. unsigned long)); +. boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR, +. file_ptr, bfd_size_type)); +. +. {* Routines used by the linker. *} +.#define BFD_JUMP_TABLE_LINK(NAME)\ +.CAT(NAME,_sizeof_headers),\ +.CAT(NAME,_bfd_get_relocated_section_contents),\ +.CAT(NAME,_bfd_relax_section),\ +.CAT(NAME,_bfd_link_hash_table_create),\ +.CAT(NAME,_bfd_link_add_symbols),\ +.CAT(NAME,_bfd_final_link),\ +.CAT(NAME,_bfd_link_split_section),\ +.CAT(NAME,_bfd_gc_sections) +. int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean)); +. bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *, +. struct bfd_link_info *, struct bfd_link_order *, +. bfd_byte *data, boolean relocateable, +. struct symbol_cache_entry **)); +. +. boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *, +. struct bfd_link_info *, boolean *again)); +. +. {* Create a hash table for the linker. Different backends store +. different information in this table. *} +. struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *)); +. +. {* Add symbols from this object file into the hash table. *} +. boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *)); +. +. {* Do a link based on the link_order structures attached to each +. section of the BFD. *} +. boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *)); +. +. {* Should this section be split up into smaller pieces during linking. *} +. boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *)); +. +. {* Remove sections that are not referenced from the output. *} +. boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *)); +. +. {* Routines to handle dynamic symbols and relocs. *} +.#define BFD_JUMP_TABLE_DYNAMIC(NAME)\ +.CAT(NAME,_get_dynamic_symtab_upper_bound),\ +.CAT(NAME,_canonicalize_dynamic_symtab),\ +.CAT(NAME,_get_dynamic_reloc_upper_bound),\ +.CAT(NAME,_canonicalize_dynamic_reloc) +. {* Get the amount of memory required to hold the dynamic symbols. *} +. long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *)); +. {* Read in the dynamic symbols. *} +. long (*_bfd_canonicalize_dynamic_symtab) +. PARAMS ((bfd *, struct symbol_cache_entry **)); +. {* Get the amount of memory required to hold the dynamic relocs. *} +. long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *)); +. {* Read in the dynamic relocs. *} +. long (*_bfd_canonicalize_dynamic_reloc) +. PARAMS ((bfd *, arelent **, struct symbol_cache_entry **)); +. + +Data for use by back-end routines, which isn't generic enough to belong +in this structure. + +. PTR backend_data; +.} bfd_target; + +*/ + +/* All known xvecs (even those that don't compile on all systems). + Alphabetized for easy reference. + They are listed a second time below, since + we can't intermix extern's and initializers. */ +extern const bfd_target a29kcoff_big_vec; +extern const bfd_target a_out_adobe_vec; +extern const bfd_target aout_arm_big_vec; +extern const bfd_target aout_arm_little_vec; +extern const bfd_target aout_mips_big_vec; +extern const bfd_target aout_mips_little_vec; +extern const bfd_target aout0_big_vec; +extern const bfd_target apollocoff_vec; +extern const bfd_target armcoff_little_vec; +extern const bfd_target armcoff_big_vec; +extern const bfd_target armpe_little_vec; +extern const bfd_target armpe_big_vec; +extern const bfd_target armpei_little_vec; +extern const bfd_target armpei_big_vec; +extern const bfd_target arm_epoc_pe_little_vec; +extern const bfd_target arm_epoc_pe_big_vec; +extern const bfd_target arm_epoc_pei_little_vec; +extern const bfd_target arm_epoc_pei_big_vec; +extern const bfd_target b_out_vec_big_host; +extern const bfd_target b_out_vec_little_host; +extern const bfd_target bfd_elf64_alpha_vec; +extern const bfd_target bfd_elf32_bigarc_vec; +extern const bfd_target bfd_elf32_bigarm_vec; +extern const bfd_target bfd_elf32_bigarm_oabi_vec; +extern const bfd_target bfd_elf32_littlearc_vec; +extern const bfd_target bfd_elf32_littlearm_vec; +extern const bfd_target bfd_elf32_littlearm_oabi_vec; +extern const bfd_target bfd_elf32_big_generic_vec; +extern const bfd_target bfd_elf32_bigmips_vec; +extern const bfd_target bfd_elf64_bigmips_vec; +extern const bfd_target bfd_elf32_d10v_vec; +extern const bfd_target bfd_elf32_d30v_vec; +extern const bfd_target bfd_elf32_hppa_vec; +extern const bfd_target bfd_elf32_i386_vec; +extern const bfd_target bfd_elf32_i860_vec; +extern const bfd_target bfd_elf32_little_generic_vec; +extern const bfd_target bfd_elf32_littlemips_vec; +extern const bfd_target bfd_elf64_littlemips_vec; +extern const bfd_target bfd_elf32_m32r_vec; +extern const bfd_target bfd_elf32_m68k_vec; +extern const bfd_target bfd_elf32_m88k_vec; +extern const bfd_target bfd_elf32_mn10200_vec; +extern const bfd_target bfd_elf32_mn10300_vec; +extern const bfd_target bfd_elf32_powerpc_vec; +extern const bfd_target bfd_elf32_powerpcle_vec; +extern const bfd_target bfd_elf32_sh_vec; +extern const bfd_target bfd_elf32_shl_vec; +extern const bfd_target bfd_elf32_sparc_vec; +extern const bfd_target bfd_elf32_v850_vec; +extern const bfd_target bfd_elf32_fr30_vec; +extern const bfd_target bfd_elf32_mcore_big_vec; +extern const bfd_target bfd_elf32_mcore_little_vec; +extern const bfd_target bfd_elf64_big_generic_vec; +extern const bfd_target bfd_elf64_little_generic_vec; +extern const bfd_target bfd_elf64_sparc_vec; +extern const bfd_target demo_64_vec; +extern const bfd_target ecoff_big_vec; +extern const bfd_target ecoff_little_vec; +extern const bfd_target ecoff_biglittle_vec; +extern const bfd_target ecoffalpha_little_vec; +extern const bfd_target h8300coff_vec; +extern const bfd_target h8500coff_vec; +extern const bfd_target host_aout_vec; +extern const bfd_target hp300bsd_vec; +extern const bfd_target hp300hpux_vec; +extern const bfd_target som_vec; +extern const bfd_target i386aout_vec; +extern const bfd_target i386bsd_vec; +extern const bfd_target i386dynix_vec; +extern const bfd_target i386freebsd_vec; +extern const bfd_target i386os9k_vec; +extern const bfd_target i386coff_vec; +extern const bfd_target bfd_powerpc_pe_vec; +extern const bfd_target bfd_powerpcle_pe_vec; +extern const bfd_target bfd_powerpc_pei_vec; +extern const bfd_target bfd_powerpcle_pei_vec; +extern const bfd_target i386pe_vec; +extern const bfd_target i386pei_vec; +extern const bfd_target go32coff_vec; +extern const bfd_target go32stubbedcoff_vec; +extern const bfd_target i386linux_vec; +extern const bfd_target i386lynx_aout_vec; +extern const bfd_target i386lynx_coff_vec; +extern const bfd_target i386mach3_vec; +extern const bfd_target i386msdos_vec; +extern const bfd_target i386netbsd_vec; +extern const bfd_target i860coff_vec; +extern const bfd_target icoff_big_vec; +extern const bfd_target icoff_little_vec; +extern const bfd_target ieee_vec; +extern const bfd_target m68kaux_coff_vec; +extern const bfd_target m68kcoff_vec; +extern const bfd_target m68kcoffun_vec; +extern const bfd_target m68klinux_vec; +extern const bfd_target m68klynx_aout_vec; +extern const bfd_target m68klynx_coff_vec; +extern const bfd_target m68knetbsd_vec; +extern const bfd_target m68ksysvcoff_vec; +extern const bfd_target m68k4knetbsd_vec; +extern const bfd_target m88kbcs_vec; +extern const bfd_target m88kmach3_vec; +extern const bfd_target mcore_pe_big_vec; +extern const bfd_target mcore_pe_little_vec; +extern const bfd_target mcore_pei_big_vec; +extern const bfd_target mcore_pei_little_vec; +extern const bfd_target newsos3_vec; +extern const bfd_target nlm32_i386_vec; +extern const bfd_target nlm32_sparc_vec; +extern const bfd_target nlm32_alpha_vec; +extern const bfd_target nlm32_powerpc_vec; +extern const bfd_target pc532netbsd_vec; +extern const bfd_target oasys_vec; +extern const bfd_target pc532machaout_vec; +extern const bfd_target ppcboot_vec; +extern const bfd_target riscix_vec; +extern const bfd_target pmac_xcoff_vec; +extern const bfd_target rs6000coff_vec; +extern const bfd_target shcoff_vec; +extern const bfd_target shlcoff_vec; +extern const bfd_target shcoff_small_vec; +extern const bfd_target shlcoff_small_vec; +extern const bfd_target sparcle_aout_vec; +extern const bfd_target sparclinux_vec; +extern const bfd_target sparclynx_aout_vec; +extern const bfd_target sparclynx_coff_vec; +extern const bfd_target sparcnetbsd_vec; +extern const bfd_target sparccoff_vec; +extern const bfd_target sunos_big_vec; +extern const bfd_target tekhex_vec; +extern const bfd_target tic30_aout_vec; +extern const bfd_target tic30_coff_vec; +extern const bfd_target tic80coff_vec; +extern const bfd_target vaxnetbsd_vec; +extern const bfd_target versados_vec; +extern const bfd_target vms_alpha_vec; +extern const bfd_target vms_vax_vec; +extern const bfd_target we32kcoff_vec; +extern const bfd_target w65_vec; +extern const bfd_target z8kcoff_vec; + +/* srec is always included. */ +extern const bfd_target srec_vec; +extern const bfd_target symbolsrec_vec; + +/* binary is always included. */ +extern const bfd_target binary_vec; + +/* ihex is always included. */ +extern const bfd_target ihex_vec; + +/* All of the xvecs for core files. */ +extern const bfd_target aix386_core_vec; +extern const bfd_target cisco_core_vec; +extern const bfd_target hpux_core_vec; +extern const bfd_target hppabsd_core_vec; +extern const bfd_target irix_core_vec; +extern const bfd_target netbsd_core_vec; +extern const bfd_target osf_core_vec; +extern const bfd_target sco5_core_vec; +extern const bfd_target trad_core_vec; +extern const bfd_target ptrace_core_vec; + +const bfd_target * const bfd_target_vector[] = { + +#ifdef SELECT_VECS + + SELECT_VECS, + +#else /* not SELECT_VECS */ + +#ifdef DEFAULT_VECTOR + &DEFAULT_VECTOR, +#endif + /* This list is alphabetized to make it easy to compare + with other vector lists -- the decls above and + the case statement in configure.in. + Vectors that don't compile on all systems, or aren't finished, + should have an entry here with #if 0 around it, to show that + it wasn't omitted by mistake. */ + &a29kcoff_big_vec, + &a_out_adobe_vec, +#if 0 /* No one seems to use this. */ + &aout_mips_big_vec, +#endif + &aout_mips_little_vec, + &b_out_vec_big_host, + &b_out_vec_little_host, + + /* This, and other vectors, may not be used in any *.mt configuration. + But that does not mean they are unnecessary. If configured with + --enable-targets=all, objdump or gdb should be able to examine + the file even if we don't recognize the machine type. */ + &bfd_elf32_big_generic_vec, +#ifdef BFD64 + &bfd_elf64_alpha_vec, +#endif + &bfd_elf32_bigarc_vec, + &bfd_elf32_bigarm_vec, + &bfd_elf32_bigarm_oabi_vec, + &bfd_elf32_bigmips_vec, +#ifdef BFD64 + &bfd_elf64_bigmips_vec, +#endif + &bfd_elf32_d10v_vec, + &bfd_elf32_d30v_vec, + &bfd_elf32_hppa_vec, + &bfd_elf32_i386_vec, + &bfd_elf32_i860_vec, + &bfd_elf32_little_generic_vec, + &bfd_elf32_littlearc_vec, + &bfd_elf32_littlearm_vec, + &bfd_elf32_littlearm_oabi_vec, + &bfd_elf32_littlemips_vec, +#ifdef BFD64 + &bfd_elf64_littlemips_vec, +#endif + &bfd_elf32_m32r_vec, + &bfd_elf32_mn10200_vec, + &bfd_elf32_mn10300_vec, + &bfd_elf32_m68k_vec, + &bfd_elf32_m88k_vec, + &bfd_elf32_sparc_vec, + &bfd_elf32_powerpc_vec, + &bfd_elf32_powerpcle_vec, + &bfd_elf32_v850_vec, + &bfd_elf32_fr30_vec, + &bfd_elf32_mcore_big_vec, + &bfd_elf32_mcore_little_vec, +#ifdef BFD64 /* No one seems to use this. */ + &bfd_elf64_big_generic_vec, + &bfd_elf64_little_generic_vec, +#endif +#if 0 + &bfd_elf64_sparc_vec, +#endif + /* We don't include cisco_core_vec. Although it has a magic number, + the magic number isn't at the beginning of the file, and thus + might spuriously match other kinds of files. */ +#ifdef BFD64 + &demo_64_vec, /* Only compiled if host has long-long support */ +#endif + &ecoff_big_vec, + &ecoff_little_vec, + &ecoff_biglittle_vec, +#ifdef BFD64 + &ecoffalpha_little_vec, +#endif + &h8300coff_vec, + &h8500coff_vec, +#if 0 + /* Since a.out files lack decent magic numbers, no way to recognize + which kind of a.out file it is. */ + &host_aout_vec, +#endif +#if 0 /* Clashes with sunos_big_vec magic no. */ + &hp300bsd_vec, +#endif + &hp300hpux_vec, +#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) + &som_vec, +#endif + &i386aout_vec, + &i386bsd_vec, + &i386coff_vec, + &i386freebsd_vec, + &i860coff_vec, + &bfd_powerpc_pe_vec, + &bfd_powerpcle_pe_vec, + &bfd_powerpc_pei_vec, + &bfd_powerpcle_pei_vec, + &go32coff_vec, + &go32stubbedcoff_vec, +#if 0 + /* Since a.out files lack decent magic numbers, no way to recognize + which kind of a.out file it is. */ + &i386linux_vec, +#endif + &i386lynx_aout_vec, + &i386lynx_coff_vec, +#if 0 + /* No distinguishing features for Mach 3 executables. */ + &i386mach3_vec, +#endif + &i386msdos_vec, + &i386netbsd_vec, + &i386os9k_vec, + &i386pe_vec, + &i386pei_vec, + &armcoff_little_vec, + &armcoff_big_vec, + &armpe_little_vec, + &armpe_big_vec, + &armpei_little_vec, + &armpei_big_vec, + &arm_epoc_pe_little_vec, + &arm_epoc_pe_big_vec, + &arm_epoc_pei_little_vec, + &arm_epoc_pei_big_vec, + &icoff_big_vec, + &icoff_little_vec, + &ieee_vec, + &m68kcoff_vec, + &m68kcoffun_vec, +#if 0 + /* Since a.out files lack decent magic numbers, no way to recognize + which kind of a.out file it is. */ + &m68klinux_vec, +#endif + &m68klynx_aout_vec, + &m68klynx_coff_vec, + &m68knetbsd_vec, + &m68ksysvcoff_vec, + &m88kbcs_vec, + &m88kmach3_vec, + &mcore_pe_big_vec, + &mcore_pe_little_vec, + &mcore_pei_big_vec, + &mcore_pei_little_vec, + &newsos3_vec, + &nlm32_i386_vec, + &nlm32_sparc_vec, +#ifdef BFD64 + &nlm32_alpha_vec, +#endif + &pc532netbsd_vec, +#if 0 + /* We have no oasys tools anymore, so we can't test any of this + anymore. If you want to test the stuff yourself, go ahead... + steve@cygnus.com + Worse, since there is no magic number for archives, there + can be annoying target mis-matches. */ + &oasys_vec, +#endif + &pc532machaout_vec, +#if 0 + /* We have no way of distinguishing these from other a.out variants */ + &aout_arm_big_vec, + &aout_arm_little_vec, + &riscix_vec, +#endif +#if 0 + /* This has the same magic number as RS/6000. */ + &pmac_xcoff_vec, +#endif + &rs6000coff_vec, + &ppcboot_vec, + &shcoff_vec, + &shlcoff_vec, + &shcoff_small_vec, + &shlcoff_small_vec, + &sparcle_aout_vec, + &sparclinux_vec, + &sparclynx_aout_vec, + &sparclynx_coff_vec, + &sparcnetbsd_vec, + &sunos_big_vec, + &aout0_big_vec, + &tic30_aout_vec, + &tic30_coff_vec, + &tic80coff_vec, + &vaxnetbsd_vec, + &versados_vec, +#ifdef BFD64 + &vms_alpha_vec, +#endif + &vms_vax_vec, + &we32kcoff_vec, + &z8kcoff_vec, + +#endif /* not SELECT_VECS */ + +/* Always support S-records, for convenience. */ + &srec_vec, + &symbolsrec_vec, +/* And tekhex */ + &tekhex_vec, +/* Likewise for binary output. */ + &binary_vec, +/* Likewise for ihex. */ + &ihex_vec, + +/* Add any required traditional-core-file-handler. */ + +#ifdef AIX386_CORE + &aix386_core_vec, +#endif +#ifdef HPUX_CORE + &hpux_core_vec, +#endif +#ifdef HPPABSD_CORE + &hppabsd_core_vec, +#endif +#ifdef IRIX_CORE + &irix_core_vec, +#endif +#ifdef NETBSD_CORE + &netbsd_core_vec, +#endif +#ifdef OSF_CORE + &osf_core_vec, +#endif +#ifdef SCO5_CORE + &sco5_core_vec, +#endif +#ifdef TRAD_CORE + &trad_core_vec, +#endif + +#ifdef PTRACE_CORE + &ptrace_core_vec, +#endif + + NULL /* end of list marker */ +}; + +/* bfd_default_vector[0] contains either the address of the default vector, + if there is one, or zero if there isn't. */ + +const bfd_target *bfd_default_vector[] = { +#ifdef DEFAULT_VECTOR + &DEFAULT_VECTOR, +#endif + NULL +}; + +/* When there is an ambiguous match, bfd_check_format_matches puts the + names of the matching targets in an array. This variable is the maximum + number of entries that the array could possibly need. */ +const size_t _bfd_target_vector_entries = sizeof(bfd_target_vector)/sizeof(*bfd_target_vector); + +/* This array maps configuration triplets onto BFD vectors. */ + +struct targmatch +{ + /* The configuration triplet. */ + const char *triplet; + /* The BFD vector. If this is NULL, then the vector is found by + searching forward for the next structure with a non NULL vector + field. */ + const bfd_target *vector; +}; + +/* targmatch.h is built by Makefile out of config.bfd. */ +static const struct targmatch bfd_target_match[] = { +#include "targmatch.h" + { NULL, NULL } +}; + +static const bfd_target *find_target PARAMS ((const char *)); + +/* Find a target vector, given a name or configuration triplet. */ + +static const bfd_target * +find_target (name) + const char *name; +{ + const bfd_target * const *target; + const struct targmatch *match; + + for (target = &bfd_target_vector[0]; *target != NULL; target++) + if (strcmp (name, (*target)->name) == 0) + return *target; + + /* If we couldn't match on the exact name, try matching on the + configuration triplet. FIXME: We should run the triplet through + config.sub first, but that is hard. */ + for (match = &bfd_target_match[0]; match->triplet != NULL; match++) + { + if (fnmatch (match->triplet, name, 0) == 0) + { + while (match->vector == NULL) + ++match; + return match->vector; + break; + } + } + + bfd_set_error (bfd_error_invalid_target); + return NULL; +} + +/* +FUNCTION + bfd_set_default_target + +SYNOPSIS + boolean bfd_set_default_target (const char *name); + +DESCRIPTION + Set the default target vector to use when recognizing a BFD. + This takes the name of the target, which may be a BFD target + name or a configuration triplet. +*/ + +boolean +bfd_set_default_target (name) + const char *name; +{ + const bfd_target *target; + + if (bfd_default_vector[0] != NULL + && strcmp (name, bfd_default_vector[0]->name) == 0) + return true; + + target = find_target (name); + if (target == NULL) + return false; + + bfd_default_vector[0] = target; + return true; +} + +/* +FUNCTION + bfd_find_target + +SYNOPSIS + const bfd_target *bfd_find_target(CONST char *target_name, bfd *abfd); + +DESCRIPTION + Return a pointer to the transfer vector for the object target + named @var{target_name}. If @var{target_name} is <<NULL>>, choose the + one in the environment variable <<GNUTARGET>>; if that is null or not + defined, then choose the first entry in the target list. + Passing in the string "default" or setting the environment + variable to "default" will cause the first entry in the target + list to be returned, and "target_defaulted" will be set in the + BFD. This causes <<bfd_check_format>> to loop over all the + targets to find the one that matches the file being read. +*/ + +const bfd_target * +bfd_find_target (target_name, abfd) + const char *target_name; + bfd *abfd; +{ + const char *targname; + const bfd_target *target; + + if (target_name != NULL) + targname = target_name; + else + targname = getenv ("GNUTARGET"); + + /* This is safe; the vector cannot be null */ + if (targname == NULL || strcmp (targname, "default") == 0) + { + abfd->target_defaulted = true; + if (bfd_default_vector[0] != NULL) + abfd->xvec = bfd_default_vector[0]; + else + abfd->xvec = bfd_target_vector[0]; + return abfd->xvec; + } + + abfd->target_defaulted = false; + + target = find_target (targname); + if (target == NULL) + return NULL; + + abfd->xvec = target; + return target; +} + +/* +FUNCTION + bfd_target_list + +SYNOPSIS + const char **bfd_target_list(void); + +DESCRIPTION + Return a freshly malloced NULL-terminated + vector of the names of all the valid BFD targets. Do not + modify the names. + +*/ + +const char ** +bfd_target_list () +{ + int vec_length= 0; +#if defined (HOST_HPPAHPUX) && ! defined (__STDC__) + /* The native compiler on the HP9000/700 has a bug which causes it + to loop endlessly when compiling this file. This avoids it. */ + volatile +#endif + const bfd_target * const *target; + CONST char **name_list, **name_ptr; + + for (target = &bfd_target_vector[0]; *target != NULL; target++) + vec_length++; + + name_ptr = name_list = (CONST char **) + bfd_zmalloc ((vec_length + 1) * sizeof (char **)); + + if (name_list == NULL) + return NULL; + + for (target = &bfd_target_vector[0]; *target != NULL; target++) + *(name_ptr++) = (*target)->name; + + return name_list; +} |