diff options
Diffstat (limited to 'bfd/aout-tic30.c')
| -rw-r--r-- | bfd/aout-tic30.c | 1065 |
1 files changed, 1065 insertions, 0 deletions
diff --git a/bfd/aout-tic30.c b/bfd/aout-tic30.c new file mode 100644 index 00000000000..eae6cb754cb --- /dev/null +++ b/bfd/aout-tic30.c @@ -0,0 +1,1065 @@ +/* BFD back-end for TMS320C30 a.out binaries. + Copyright (C) 1998 Free Software Foundation, Inc. + Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au) + + 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. */ + +#define TARGET_IS_BIG_ENDIAN_P +#define N_HEADER_IN_TEXT(x) 1 +#define BYTES_IN_WORD 4 +#define TEXT_START_ADDR 1024 +#define TARGET_PAGE_SIZE 128 +#define SEGMENT_SIZE TARGET_PAGE_SIZE +#define DEFAULT_ARCH bfd_arch_tic30 +#define ARCH_SIZE 32 + +#define MY(OP) CAT(tic30_aout_,OP) +#define TARGETNAME "a.out-tic30" +#define NAME(x,y) CAT3(tic30_aout,_32_,y) + +#include "bfd.h" +#include "sysdep.h" +#include "libaout.h" + +#include "aout/aout64.h" +#include "aout/stab_gnu.h" +#include "aout/ar.h" + +static bfd_reloc_status_type tic30_aout_fix_16 + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static bfd_reloc_status_type tic30_aout_fix_32 + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static bfd_reloc_status_type tic30_aout_fix_pcrel_16 + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static reloc_howto_type *tic30_aout_reloc_howto + PARAMS ((bfd *, struct reloc_std_external *, int *, int *, int *)); +static bfd_reloc_status_type tic30_aout_relocate_contents + PARAMS ((reloc_howto_type *, bfd *, bfd_vma, bfd_byte *)); +static bfd_reloc_status_type tic30_aout_final_link_relocate + PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, bfd_vma, + bfd_vma, bfd_vma)); +static const bfd_target *tic30_aout_object_p PARAMS ((bfd *)); +static boolean tic30_aout_write_object_contents PARAMS ((bfd *)); +static boolean tic30_aout_set_sizes PARAMS ((bfd *)); + +#define MY_reloc_howto(BFD,REL,IN,EX,PC) tic30_aout_reloc_howto(BFD,REL,&IN,&EX,&PC) +#define MY_final_link_relocate tic30_aout_final_link_relocate +#define MY_object_p tic30_aout_object_p +#define MY_mkobject NAME(aout,mkobject) +#define MY_write_object_contents tic30_aout_write_object_contents +#define MY_set_sizes tic30_aout_set_sizes + +#ifndef MY_exec_hdr_flags +#define MY_exec_hdr_flags 1 +#endif + +#ifndef MY_backend_data + +#ifndef MY_zmagic_contiguous +#define MY_zmagic_contiguous 0 +#endif +#ifndef MY_text_includes_header +#define MY_text_includes_header 0 +#endif +#ifndef MY_entry_is_text_address +#define MY_entry_is_text_address 0 +#endif +#ifndef MY_exec_header_not_counted +#define MY_exec_header_not_counted 1 +#endif +#ifndef MY_add_dynamic_symbols +#define MY_add_dynamic_symbols 0 +#endif +#ifndef MY_add_one_symbol +#define MY_add_one_symbol 0 +#endif +#ifndef MY_link_dynamic_object +#define MY_link_dynamic_object 0 +#endif +#ifndef MY_write_dynamic_symbol +#define MY_write_dynamic_symbol 0 +#endif +#ifndef MY_check_dynamic_reloc +#define MY_check_dynamic_reloc 0 +#endif +#ifndef MY_finish_dynamic_link +#define MY_finish_dynamic_link 0 +#endif + +static CONST struct aout_backend_data tic30_aout_backend_data = +{ + MY_zmagic_contiguous, + MY_text_includes_header, + MY_entry_is_text_address, + MY_exec_hdr_flags, + 0, /* text vma? */ + MY_set_sizes, + MY_exec_header_not_counted, + MY_add_dynamic_symbols, + MY_add_one_symbol, + MY_link_dynamic_object, + MY_write_dynamic_symbol, + MY_check_dynamic_reloc, + MY_finish_dynamic_link +}; +#define MY_backend_data &tic30_aout_backend_data +#endif + +/* FIXME: This is wrong. aoutx.h should really only be included by + aout32.c. */ + +#include "aoutx.h" + +/* This table lists the relocation types for the TMS320C30. There are + only a few relocations required, and all must be divided by 4 (>> + 2) to get the 32-bit addresses in the format the TMS320C30 likes + it. */ +reloc_howto_type tic30_aout_howto_table[] = +{ + {-1}, + HOWTO (1, 2, 1, 16, false, 0, 0, tic30_aout_fix_16, + "16", false, 0x0000FFFF, 0x0000FFFF, false), + HOWTO (2, 2, 2, 24, false, 0, complain_overflow_bitfield, NULL, + "24", false, 0x00FFFFFF, 0x00FFFFFF, false), + HOWTO (3, 18, 3, 24, false, 0, complain_overflow_bitfield, NULL, + "LDP", false, 0x00FF0000, 0x000000FF, false), + HOWTO (4, 2, 4, 32, false, 0, complain_overflow_bitfield, tic30_aout_fix_32, + "32", false, 0xFFFFFFFF, 0xFFFFFFFF, false), + HOWTO (5, 2, 1, 16, true, 0, complain_overflow_signed, + tic30_aout_fix_pcrel_16, "PCREL", true, 0x0000FFFF, 0x0000FFFF, true), + {-1}, + {-1}, + {-1}, + {-1}, + {-1} +}; + +extern reloc_howto_type *NAME (aout, reloc_type_lookup) (); + +reloc_howto_type * +tic30_aout_reloc_type_lookup (abfd, code) + bfd *abfd; + bfd_reloc_code_real_type code; +{ + switch (code) + { + case BFD_RELOC_8: + case BFD_RELOC_TIC30_LDP: + return &tic30_aout_howto_table[3]; + case BFD_RELOC_16: + return &tic30_aout_howto_table[1]; + case BFD_RELOC_24: + return &tic30_aout_howto_table[2]; + case BFD_RELOC_16_PCREL: + return &tic30_aout_howto_table[5]; + case BFD_RELOC_32: + return &tic30_aout_howto_table[4]; + default: + return (reloc_howto_type *) NULL; + } +} + +static reloc_howto_type * +tic30_aout_reloc_howto (abfd, relocs, r_index, r_extern, r_pcrel) + bfd *abfd; + struct reloc_std_external *relocs; + int *r_index; + int *r_extern; + int *r_pcrel; +{ + unsigned int r_length; + unsigned int r_pcrel_done; + int index; + + *r_pcrel = 0; + if (bfd_header_big_endian (abfd)) + { + *r_index = ((relocs->r_index[0] << 16) | (relocs->r_index[1] << 8) | relocs->r_index[2]); + *r_extern = (0 != (relocs->r_type[0] & RELOC_STD_BITS_EXTERN_BIG)); + r_pcrel_done = (0 != (relocs->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); + r_length = ((relocs->r_type[0] & RELOC_STD_BITS_LENGTH_BIG) >> RELOC_STD_BITS_LENGTH_SH_BIG); + } + else + { + *r_index = ((relocs->r_index[2] << 16) | (relocs->r_index[1] << 8) | relocs->r_index[0]); + *r_extern = (0 != (relocs->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE)); + r_pcrel_done = (0 != (relocs->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); + r_length = ((relocs->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE) >> RELOC_STD_BITS_LENGTH_SH_LITTLE); + } + index = r_length + 4 * r_pcrel_done; + return tic30_aout_howto_table + index; +} + +/* This function is used as a callback for 16-bit relocs. This is + required for relocations between segments. A line in aoutx.h + requires that any relocations for the data section should point to + the end of the aligned text section, plus an offset. By default, + this does not happen, therefore this function takes care of + that. */ + +static bfd_reloc_status_type +tic30_aout_fix_16 (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message; +{ + bfd_vma relocation; + + /* Make sure that the symbol's section is defined. */ + if (symbol->section == &bfd_und_section && (symbol->flags & BSF_WEAK) == 0) + return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined; + /* Get the size of the input section and turn it into the TMS320C30 + 32-bit address format. */ + relocation = (symbol->section->vma >> 2); + relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); + bfd_put_16 (abfd, relocation, (bfd_byte *) data + reloc_entry->address); + return bfd_reloc_ok; +} + +/* This function does the same thing as tic30_aout_fix_16 except for 32 + bit relocations. */ + +static bfd_reloc_status_type +tic30_aout_fix_32 (abfd, reloc_entry, symbol, data, input_section, + output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message; +{ + bfd_vma relocation; + + /* Make sure that the symbol's section is defined. */ + if (symbol->section == &bfd_und_section && (symbol->flags & BSF_WEAK) == 0) + return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined; + /* Get the size of the input section and turn it into the TMS320C30 + 32-bit address format. */ + relocation = (symbol->section->vma >> 2); + relocation += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); + bfd_put_32 (abfd, relocation, (bfd_byte *) data + reloc_entry->address); + return bfd_reloc_ok; +} + +/* This function is used to work out pc-relative offsets for the + TMS320C30. The data already placed by md_pcrel_from within gas is + useless for a relocation, so we just get the offset value and place + a version of this within the object code. + tic30_aout_final_link_relocate will then calculate the required + relocation to add on to the value in the object code. */ + +static bfd_reloc_status_type +tic30_aout_fix_pcrel_16 (abfd, reloc_entry, symbol, data, input_section, + output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message; +{ + bfd_vma relocation = 1; + bfd_byte offset_data = bfd_get_8 (abfd, (bfd_byte *) data + reloc_entry->address - 1); + + /* The byte before the location of the fix contains bits 23-16 of + the pcrel instruction. Bit 21 is set for a delayed instruction + which requires on offset of 3 instead of 1. */ + if (offset_data & 0x20) + relocation -= 3; + else + relocation -= 1; + bfd_put_16 (abfd, relocation, (bfd_byte *) data + reloc_entry->address); + return bfd_reloc_ok; +} + +/* These macros will get 24-bit values from the bfd definition. + Big-endian only. */ +#define bfd_getb_24(BFD,ADDR) (bfd_get_8(BFD,ADDR) << 16) | \ + (bfd_get_8(BFD,ADDR+1) << 8) | \ + (bfd_get_8(BFD,ADDR+2)) + +#define bfd_putb_24(BFD,DATA,ADDR) bfd_put_8(BFD,(bfd_byte)((DATA >> 16) & 0xFF),ADDR); \ + bfd_put_8(BFD,(bfd_byte)((DATA >> 8) & 0xFF),ADDR+1); \ + bfd_put_8(BFD,(bfd_byte)(DATA & 0xFF),ADDR+2) + +/* Set parameters about this a.out file that are machine-dependent. + This routine is called from some_aout_object_p just before it returns. */ + +static const bfd_target * +tic30_aout_callback (abfd) + bfd *abfd; +{ + struct internal_exec *execp = exec_hdr (abfd); + unsigned int arch_align_power; + unsigned long arch_align; + + /* Calculate the file positions of the parts of a newly read aout header */ + obj_textsec (abfd)->_raw_size = N_TXTSIZE (*execp); + + /* The virtual memory addresses of the sections */ + obj_textsec (abfd)->vma = N_TXTADDR (*execp); + obj_datasec (abfd)->vma = N_DATADDR (*execp); + obj_bsssec (abfd)->vma = N_BSSADDR (*execp); + + obj_textsec (abfd)->lma = obj_textsec (abfd)->vma; + obj_datasec (abfd)->lma = obj_datasec (abfd)->vma; + obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma; + + /* The file offsets of the sections */ + obj_textsec (abfd)->filepos = N_TXTOFF (*execp); + obj_datasec (abfd)->filepos = N_DATOFF (*execp); + + /* The file offsets of the relocation info */ + obj_textsec (abfd)->rel_filepos = N_TRELOFF (*execp); + obj_datasec (abfd)->rel_filepos = N_DRELOFF (*execp); + + /* The file offsets of the string table and symbol table. */ + obj_sym_filepos (abfd) = N_SYMOFF (*execp); + obj_str_filepos (abfd) = N_STROFF (*execp); + + /* Determine the architecture and machine type of the object file. */ +#ifdef SET_ARCH_MACH + SET_ARCH_MACH (abfd, *execp); +#else + bfd_default_set_arch_mach (abfd, DEFAULT_ARCH, 0); +#endif + + /* Now that we know the architecture, set the alignments of the + sections. This is normally done by NAME(aout,new_section_hook), + but when the initial sections were created the architecture had + not yet been set. However, for backward compatibility, we don't + set the alignment power any higher than as required by the size + of the section. */ + arch_align_power = bfd_get_arch_info (abfd)->section_align_power; + arch_align = 1 << arch_align_power; + if ((BFD_ALIGN (obj_textsec (abfd)->_raw_size, arch_align) + == obj_textsec (abfd)->_raw_size) + && (BFD_ALIGN (obj_datasec (abfd)->_raw_size, arch_align) + == obj_datasec (abfd)->_raw_size) + && (BFD_ALIGN (obj_bsssec (abfd)->_raw_size, arch_align) + == obj_bsssec (abfd)->_raw_size)) + { + obj_textsec (abfd)->alignment_power = arch_align_power; + obj_datasec (abfd)->alignment_power = arch_align_power; + obj_bsssec (abfd)->alignment_power = arch_align_power; + } + return abfd->xvec; +} + +static bfd_reloc_status_type +tic30_aout_final_link_relocate (howto, input_bfd, input_section, contents, + address, value, addend) + reloc_howto_type *howto; + bfd *input_bfd; + asection *input_section; + bfd_byte *contents; + bfd_vma address; + bfd_vma value; + bfd_vma addend; +{ + bfd_vma relocation; + + if (address > input_section->_raw_size) + return bfd_reloc_outofrange; + + relocation = value + addend; + if (howto->pc_relative) + { + relocation -= (input_section->output_section->vma + input_section->output_offset); + if (howto->pcrel_offset) + relocation -= address; + } + return tic30_aout_relocate_contents (howto, input_bfd, relocation, + contents + address); +} + +bfd_reloc_status_type +tic30_aout_relocate_contents (howto, input_bfd, relocation, location) + reloc_howto_type *howto; + bfd *input_bfd; + bfd_vma relocation; + bfd_byte *location; +{ + bfd_vma x; + boolean overflow; + + if (howto->size < 0) + relocation = -relocation; + + switch (howto->size) + { + default: + case 0: + abort (); + break; + case 1: + x = bfd_get_16 (input_bfd, location); + break; + case 2: + x = bfd_getb_24 (input_bfd, location); + break; + case 3: + x = bfd_get_8 (input_bfd, location); + break; + case 4: + x = bfd_get_32 (input_bfd, location); + break; + } + overflow = false; + if (howto->complain_on_overflow != complain_overflow_dont) + { + bfd_vma check; + bfd_signed_vma signed_check; + bfd_vma add; + bfd_signed_vma signed_add; + + if (howto->rightshift == 0) + { + check = relocation; + signed_check = (bfd_signed_vma) relocation; + } + else + { + check = relocation >> howto->rightshift; + if ((bfd_signed_vma) relocation >= 0) + signed_check = check; + else + signed_check = (check | ((bfd_vma) - 1 & ~((bfd_vma) - 1 >> howto->rightshift))); + } + add = x & howto->src_mask; + signed_add = add; + if ((add & (((~howto->src_mask) >> 1) & howto->src_mask)) != 0) + signed_add -= (((~howto->src_mask) >> 1) & howto->src_mask) << 1; + if (howto->bitpos == 0) + { + check += add; + signed_check += signed_add; + } + else + { + check += add >> howto->bitpos; + if (signed_add >= 0) + signed_check += add >> howto->bitpos; + else + signed_check += ((add >> howto->bitpos) | ((bfd_vma) - 1 & ~((bfd_vma) - 1 >> howto->bitpos))); + } + switch (howto->complain_on_overflow) + { + case complain_overflow_signed: + { + bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1; + bfd_signed_vma reloc_signed_min = ~reloc_signed_max; + if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) + overflow = true; + } + break; + case complain_overflow_unsigned: + { + bfd_vma reloc_unsigned_max = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1; + if (check > reloc_unsigned_max) + overflow = true; + } + break; + case complain_overflow_bitfield: + { + bfd_vma reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1; + if ((check & ~reloc_bits) != 0 && (((bfd_vma) signed_check & ~reloc_bits) != (-1 & ~reloc_bits))) + overflow = true; + } + break; + default: + abort (); + } + } + relocation >>= (bfd_vma) howto->rightshift; + relocation <<= (bfd_vma) howto->bitpos; + x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask)); + switch (howto->size) + { + default: + case 0: + abort (); + break; + case 1: + bfd_put_16 (input_bfd, x, location); + break; + case 2: + bfd_putb_24 (input_bfd, x, location); + break; + case 3: + bfd_put_8 (input_bfd, x, location); + break; + case 4: + bfd_put_32 (input_bfd, x, location); + break; + } + return overflow ? bfd_reloc_overflow : bfd_reloc_ok; +} + +/* Finish up the reading of an a.out file header */ + +static const bfd_target * +tic30_aout_object_p (abfd) + bfd *abfd; +{ + struct external_exec exec_bytes; /* Raw exec header from file */ + struct internal_exec exec; /* Cleaned-up exec header */ + const bfd_target *target; + + if (bfd_read ((PTR) & exec_bytes, 1, EXEC_BYTES_SIZE, abfd) + != EXEC_BYTES_SIZE) + { + if (bfd_get_error () != bfd_error_system_call) + bfd_set_error (bfd_error_wrong_format); + return 0; + } + +#ifdef SWAP_MAGIC + exec.a_info = SWAP_MAGIC (exec_bytes.e_info); +#else + exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info); +#endif /* SWAP_MAGIC */ + + if (N_BADMAG (exec)) + return 0; +#ifdef MACHTYPE_OK + if (!(MACHTYPE_OK (N_MACHTYPE (exec)))) + return 0; +#endif + + NAME (aout, swap_exec_header_in) (abfd, &exec_bytes, &exec); + +#ifdef SWAP_MAGIC + /* swap_exec_header_in read in a_info with the wrong byte order */ + exec.a_info = SWAP_MAGIC (exec_bytes.e_info); +#endif /* SWAP_MAGIC */ + + target = NAME (aout, some_aout_object_p) (abfd, &exec, tic30_aout_callback); + +#ifdef ENTRY_CAN_BE_ZERO + /* The NEWSOS3 entry-point is/was 0, which (amongst other lossage) + * means that it isn't obvious if EXEC_P should be set. + * All of the following must be true for an executable: + * There must be no relocations, the bfd can be neither an + * archive nor an archive element, and the file must be executable. */ + + if (exec.a_trsize + exec.a_drsize == 0 + && bfd_get_format (abfd) == bfd_object && abfd->my_archive == NULL) + { + struct stat buf; +#ifndef S_IXUSR +#define S_IXUSR 0100 /* Execute by owner. */ +#endif + if (stat (abfd->filename, &buf) == 0 && (buf.st_mode & S_IXUSR)) + abfd->flags |= EXEC_P; + } +#endif /* ENTRY_CAN_BE_ZERO */ + + return target; +} + +/* Copy private section data. This actually does nothing with the + sections. It copies the subformat field. We copy it here, because + we need to know whether this is a QMAGIC file before we set the + section contents, and copy_private_bfd_data is not called until + after the section contents have been set. */ + +/*ARGSUSED */ +static boolean +MY_bfd_copy_private_section_data (ibfd, isec, obfd, osec) + bfd *ibfd; + asection *isec; + bfd *obfd; + asection *osec; +{ + if (bfd_get_flavour (obfd) == bfd_target_aout_flavour) + obj_aout_subformat (obfd) = obj_aout_subformat (ibfd); + return true; +} + +/* Write an object file. + Section contents have already been written. We write the + file header, symbols, and relocation. */ + +static boolean +tic30_aout_write_object_contents (abfd) + bfd *abfd; +{ + struct external_exec exec_bytes; + struct internal_exec *execp = exec_hdr (abfd); + +#if CHOOSE_RELOC_SIZE + CHOOSE_RELOC_SIZE (abfd); +#else + obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; +#endif + { + bfd_size_type text_size; /* dummy vars */ + file_ptr text_end; + if (adata (abfd).magic == undecided_magic) + NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end); + + execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; + execp->a_entry = bfd_get_start_address (abfd); + + execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * obj_reloc_entry_size (abfd)); + execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * obj_reloc_entry_size (abfd)); + NAME (aout, swap_exec_header_out) (abfd, execp, &exec_bytes); + + if (adata (abfd).exec_bytes_size > 0) + { + if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) + return false; + if (bfd_write ((PTR) & exec_bytes, 1, adata (abfd).exec_bytes_size, abfd) != adata (abfd).exec_bytes_size) + return false; + } + /* Now write out reloc info, followed by syms and strings */ + + if (bfd_get_outsymbols (abfd) != (asymbol **) NULL + && bfd_get_symcount (abfd) != 0) + { + if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*execp)), SEEK_SET) != 0) + return false; + + if (!NAME (aout, write_syms) (abfd)) + return false; + } + + if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*execp)), SEEK_SET) != 0) + return false; + if (!NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))) + return false; + + if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*execp)), SEEK_SET) != 0) + return false; + if (!NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) + return false; + } + + return true; +} + +static boolean +tic30_aout_set_sizes (abfd) + bfd *abfd; +{ + adata (abfd).page_size = TARGET_PAGE_SIZE; + +#ifdef SEGMENT_SIZE + adata (abfd).segment_size = SEGMENT_SIZE; +#else + adata (abfd).segment_size = TARGET_PAGE_SIZE; +#endif + +#ifdef ZMAGIC_DISK_BLOCK_SIZE + adata (abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE; +#else + adata (abfd).zmagic_disk_block_size = TARGET_PAGE_SIZE; +#endif + + adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; + + return true; +} + +#ifndef MY_final_link_callback + +/* Callback for the final_link routine to set the section offsets. */ + +static void MY_final_link_callback + PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *)); + +static void +MY_final_link_callback (abfd, ptreloff, pdreloff, psymoff) + bfd *abfd; + file_ptr *ptreloff; + file_ptr *pdreloff; + file_ptr *psymoff; +{ + struct internal_exec *execp = exec_hdr (abfd); + + *ptreloff = obj_datasec (abfd)->filepos + execp->a_data; + *pdreloff = *ptreloff + execp->a_trsize; + *psymoff = *pdreloff + execp->a_drsize;; +} + +#endif + +#ifndef MY_bfd_final_link + +/* Final link routine. We need to use a call back to get the correct + offsets in the output file. */ + +static boolean +MY_bfd_final_link (abfd, info) + bfd *abfd; + struct bfd_link_info *info; +{ + struct internal_exec *execp = exec_hdr (abfd); + file_ptr pos; + bfd_vma vma = 0; + int pad; + + /* Set the executable header size to 0, as we don't want one for an + output. */ + adata (abfd).exec_bytes_size = 0; + pos = adata (abfd).exec_bytes_size; + /* Text. */ + vma = info->create_object_symbols_section->vma; + pos += vma; + obj_textsec (abfd)->filepos = pos; + obj_textsec (abfd)->vma = vma; + obj_textsec (abfd)->user_set_vma = 1; + pos += obj_textsec (abfd)->_raw_size; + vma += obj_textsec (abfd)->_raw_size; + + /* Data. */ + if (abfd->flags & D_PAGED) + { + if (info->create_object_symbols_section->next->vma > 0) + obj_datasec (abfd)->vma = info->create_object_symbols_section->next->vma; + else + obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size); + } + else + { + obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4); + } + if (obj_datasec (abfd)->vma < vma) + { + obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4); + } + obj_datasec (abfd)->user_set_vma = 1; + vma = obj_datasec (abfd)->vma; + obj_datasec (abfd)->filepos = vma + adata (abfd).exec_bytes_size; + execp->a_text = vma - obj_textsec (abfd)->vma; + obj_textsec (abfd)->_raw_size = execp->a_text; + + /* Since BSS follows data immediately, see if it needs alignment. */ + vma += obj_datasec (abfd)->_raw_size; + pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma; + obj_datasec (abfd)->_raw_size += pad; + pos += obj_datasec (abfd)->_raw_size; + execp->a_data = obj_datasec (abfd)->_raw_size; + + /* BSS. */ + obj_bsssec (abfd)->vma = vma; + obj_bsssec (abfd)->user_set_vma = 1; + + /* We are fully resized, so don't readjust in final_link. */ + adata (abfd).magic = z_magic; + + return NAME (aout, final_link) (abfd, info, MY_final_link_callback); +} + +#endif + +enum machine_type +tic30_aout_machine_type (arch, machine, unknown) + enum bfd_architecture arch; + unsigned long machine; + boolean *unknown; +{ + enum machine_type arch_flags; + + arch_flags = M_UNKNOWN; + *unknown = true; + + switch (arch) + { + case bfd_arch_tic30: + *unknown = false; + break; + default: + arch_flags = M_UNKNOWN; + } + if (arch_flags != M_UNKNOWN) + *unknown = false; + return arch_flags; +} + +boolean +tic30_aout_set_arch_mach (abfd, arch, machine) + bfd *abfd; + enum bfd_architecture arch; + unsigned long machine; +{ + if (!bfd_default_set_arch_mach (abfd, arch, machine)) + return false; + if (arch != bfd_arch_unknown) + { + boolean unknown; + tic30_aout_machine_type (arch, machine, &unknown); + if (unknown) + return false; + } + obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; + return (*aout_backend_info (abfd)->set_sizes) (abfd); +} + +/* We assume BFD generic archive files. */ +#ifndef MY_openr_next_archived_file +#define MY_openr_next_archived_file bfd_generic_openr_next_archived_file +#endif +#ifndef MY_get_elt_at_index +#define MY_get_elt_at_index _bfd_generic_get_elt_at_index +#endif +#ifndef MY_generic_stat_arch_elt +#define MY_generic_stat_arch_elt bfd_generic_stat_arch_elt +#endif +#ifndef MY_slurp_armap +#define MY_slurp_armap bfd_slurp_bsd_armap +#endif +#ifndef MY_slurp_extended_name_table +#define MY_slurp_extended_name_table _bfd_slurp_extended_name_table +#endif +#ifndef MY_construct_extended_name_table +#define MY_construct_extended_name_table \ + _bfd_archive_bsd_construct_extended_name_table +#endif +#ifndef MY_write_armap +#define MY_write_armap bsd_write_armap +#endif +#ifndef MY_read_ar_hdr +#define MY_read_ar_hdr _bfd_generic_read_ar_hdr +#endif +#ifndef MY_truncate_arname +#define MY_truncate_arname bfd_bsd_truncate_arname +#endif +#ifndef MY_update_armap_timestamp +#define MY_update_armap_timestamp _bfd_archive_bsd_update_armap_timestamp +#endif + +/* No core file defined here -- configure in trad-core.c separately. */ +#ifndef MY_core_file_failing_command +#define MY_core_file_failing_command _bfd_nocore_core_file_failing_command +#endif +#ifndef MY_core_file_failing_signal +#define MY_core_file_failing_signal _bfd_nocore_core_file_failing_signal +#endif +#ifndef MY_core_file_matches_executable_p +#define MY_core_file_matches_executable_p \ + _bfd_nocore_core_file_matches_executable_p +#endif +#ifndef MY_core_file_p +#define MY_core_file_p _bfd_dummy_target +#endif + +#ifndef MY_bfd_debug_info_start +#define MY_bfd_debug_info_start bfd_void +#endif +#ifndef MY_bfd_debug_info_end +#define MY_bfd_debug_info_end bfd_void +#endif +#ifndef MY_bfd_debug_info_accumulate +#define MY_bfd_debug_info_accumulate \ + (void (*) PARAMS ((bfd*, struct sec *))) bfd_void +#endif + +#ifndef MY_core_file_failing_command +#define MY_core_file_failing_command NAME(aout,core_file_failing_command) +#endif +#ifndef MY_core_file_failing_signal +#define MY_core_file_failing_signal NAME(aout,core_file_failing_signal) +#endif +#ifndef MY_core_file_matches_executable_p +#define MY_core_file_matches_executable_p NAME(aout,core_file_matches_executable_p) +#endif +#ifndef MY_set_section_contents +#define MY_set_section_contents NAME(aout,set_section_contents) +#endif +#ifndef MY_get_section_contents +#define MY_get_section_contents aout_32_get_section_contents +#endif +#ifndef MY_get_section_contents_in_window +#define MY_get_section_contents_in_window _bfd_generic_get_section_contents_in_window +#endif +#ifndef MY_new_section_hook +#define MY_new_section_hook NAME(aout,new_section_hook) +#endif +#ifndef MY_get_symtab_upper_bound +#define MY_get_symtab_upper_bound NAME(aout,get_symtab_upper_bound) +#endif +#ifndef MY_get_symtab +#define MY_get_symtab NAME(aout,get_symtab) +#endif +#ifndef MY_get_reloc_upper_bound +#define MY_get_reloc_upper_bound NAME(aout,get_reloc_upper_bound) +#endif +#ifndef MY_canonicalize_reloc +#define MY_canonicalize_reloc NAME(aout,canonicalize_reloc) +#endif +#ifndef MY_make_empty_symbol +#define MY_make_empty_symbol NAME(aout,make_empty_symbol) +#endif +#ifndef MY_print_symbol +#define MY_print_symbol NAME(aout,print_symbol) +#endif +#ifndef MY_get_symbol_info +#define MY_get_symbol_info NAME(aout,get_symbol_info) +#endif +#ifndef MY_get_lineno +#define MY_get_lineno NAME(aout,get_lineno) +#endif +#ifndef MY_set_arch_mach +#define MY_set_arch_mach tic30_aout_set_arch_mach +#endif +#ifndef MY_find_nearest_line +#define MY_find_nearest_line NAME(aout,find_nearest_line) +#endif +#ifndef MY_sizeof_headers +#define MY_sizeof_headers NAME(aout,sizeof_headers) +#endif +#ifndef MY_bfd_get_relocated_section_contents +#define MY_bfd_get_relocated_section_contents \ + bfd_generic_get_relocated_section_contents +#endif +#ifndef MY_bfd_relax_section +#define MY_bfd_relax_section bfd_generic_relax_section +#endif +#ifndef MY_bfd_gc_sections +#define MY_bfd_gc_sections bfd_generic_gc_sections +#endif +#ifndef MY_bfd_reloc_type_lookup +#define MY_bfd_reloc_type_lookup tic30_aout_reloc_type_lookup +#endif +#ifndef MY_bfd_make_debug_symbol +#define MY_bfd_make_debug_symbol 0 +#endif +#ifndef MY_read_minisymbols +#define MY_read_minisymbols NAME(aout,read_minisymbols) +#endif +#ifndef MY_minisymbol_to_symbol +#define MY_minisymbol_to_symbol NAME(aout,minisymbol_to_symbol) +#endif +#ifndef MY_bfd_link_hash_table_create +#define MY_bfd_link_hash_table_create NAME(aout,link_hash_table_create) +#endif +#ifndef MY_bfd_link_add_symbols +#define MY_bfd_link_add_symbols NAME(aout,link_add_symbols) +#endif +#ifndef MY_bfd_link_split_section +#define MY_bfd_link_split_section _bfd_generic_link_split_section +#endif + + +#ifndef MY_bfd_copy_private_bfd_data +#define MY_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data +#endif + +#ifndef MY_bfd_merge_private_bfd_data +#define MY_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data +#endif + +#ifndef MY_bfd_copy_private_symbol_data +#define MY_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data +#endif + +#ifndef MY_bfd_print_private_bfd_data +#define MY_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data +#endif + +#ifndef MY_bfd_set_private_flags +#define MY_bfd_set_private_flags _bfd_generic_bfd_set_private_flags +#endif + +#ifndef MY_bfd_is_local_label_name +#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name +#endif + +#ifndef MY_bfd_free_cached_info +#define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info) +#endif + +#ifndef MY_close_and_cleanup +#define MY_close_and_cleanup MY_bfd_free_cached_info +#endif + +#ifndef MY_get_dynamic_symtab_upper_bound +#define MY_get_dynamic_symtab_upper_bound \ + _bfd_nodynamic_get_dynamic_symtab_upper_bound +#endif +#ifndef MY_canonicalize_dynamic_symtab +#define MY_canonicalize_dynamic_symtab \ + _bfd_nodynamic_canonicalize_dynamic_symtab +#endif +#ifndef MY_get_dynamic_reloc_upper_bound +#define MY_get_dynamic_reloc_upper_bound \ + _bfd_nodynamic_get_dynamic_reloc_upper_bound +#endif +#ifndef MY_canonicalize_dynamic_reloc +#define MY_canonicalize_dynamic_reloc \ + _bfd_nodynamic_canonicalize_dynamic_reloc +#endif + +/* Aout symbols normally have leading underscores */ +#ifndef MY_symbol_leading_char +#define MY_symbol_leading_char '_' +#endif + +/* Aout archives normally use spaces for padding */ +#ifndef AR_PAD_CHAR +#define AR_PAD_CHAR ' ' +#endif + +#ifndef MY_BFD_TARGET +const bfd_target tic30_aout_vec = +{ + TARGETNAME, /* name */ + bfd_target_aout_flavour, + BFD_ENDIAN_BIG, /* target byte order (big) */ + BFD_ENDIAN_BIG, /* target headers byte order (big) */ + (HAS_RELOC | /* object flags */ + HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ + MY_symbol_leading_char, + AR_PAD_CHAR, /* ar_pad_char */ + 15, /* ar_max_namelen */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ + {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ + bfd_generic_archive_p, MY_core_file_p}, + {bfd_false, MY_mkobject, /* bfd_set_format */ + _bfd_generic_mkarchive, bfd_false}, + {bfd_false, MY_write_object_contents, /* bfd_write_contents */ + _bfd_write_archive_contents, bfd_false}, + + BFD_JUMP_TABLE_GENERIC (MY), + BFD_JUMP_TABLE_COPY (MY), + BFD_JUMP_TABLE_CORE (MY), + BFD_JUMP_TABLE_ARCHIVE (MY), + BFD_JUMP_TABLE_SYMBOLS (MY), + BFD_JUMP_TABLE_RELOCS (MY), + BFD_JUMP_TABLE_WRITE (MY), + BFD_JUMP_TABLE_LINK (MY), + BFD_JUMP_TABLE_DYNAMIC (MY), + + (PTR) MY_backend_data, +}; +#endif /* MY_BFD_TARGET */ |