From 54f1b3cf509cd889905287cb8ce6c5ae33911a21 Mon Sep 17 00:00:00 2001 From: Andrew Hsieh Date: Fri, 13 Jun 2014 12:38:00 -0700 Subject: Add upstream binutils-2.25 snapshot 4/4 2014 For MIPS -mmsa support Change-Id: I08c4f002fa7b33dec85ed75956e6ab551bb03c96 --- binutils-2.25/bfd/aout-adobe.c | 520 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 520 insertions(+) create mode 100644 binutils-2.25/bfd/aout-adobe.c (limited to 'binutils-2.25/bfd/aout-adobe.c') diff --git a/binutils-2.25/bfd/aout-adobe.c b/binutils-2.25/bfd/aout-adobe.c new file mode 100644 index 00000000..c8331d8c --- /dev/null +++ b/binutils-2.25/bfd/aout-adobe.c @@ -0,0 +1,520 @@ +/* BFD back-end for a.out.adobe binaries. + Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, + 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2011 + Free Software Foundation, Inc. + Written by Cygnus Support. Based on bout.c. + + 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. */ + +#include "sysdep.h" +#include "bfd.h" +#include "libbfd.h" +#include "aout/adobe.h" +#include "aout/stab_gnu.h" +#include "libaout.h" /* BFD a.out internal data structures. */ + +/* Forward decl. */ +extern const bfd_target a_out_adobe_vec; + +/* Swaps the information in an executable header taken from a raw byte + stream memory image, into the internal exec_header structure. */ + +static void +aout_adobe_swap_exec_header_in (bfd *abfd, + struct external_exec *bytes, + struct internal_exec *execp) +{ + /* Now fill in fields in the execp, from the bytes in the raw data. */ + execp->a_info = H_GET_32 (abfd, bytes->e_info); + execp->a_text = GET_WORD (abfd, bytes->e_text); + execp->a_data = GET_WORD (abfd, bytes->e_data); + execp->a_bss = GET_WORD (abfd, bytes->e_bss); + execp->a_syms = GET_WORD (abfd, bytes->e_syms); + execp->a_entry = GET_WORD (abfd, bytes->e_entry); + execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); + execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); +} + +/* Swaps the information in an internal exec header structure into the + supplied buffer ready for writing to disk. */ + +static void +aout_adobe_swap_exec_header_out (bfd *abfd, + struct internal_exec *execp, + struct external_exec *bytes) +{ + /* Now fill in fields in the raw data, from the fields in the exec + struct. */ + H_PUT_32 (abfd, execp->a_info , bytes->e_info); + PUT_WORD (abfd, execp->a_text , bytes->e_text); + PUT_WORD (abfd, execp->a_data , bytes->e_data); + PUT_WORD (abfd, execp->a_bss , bytes->e_bss); + PUT_WORD (abfd, execp->a_syms , bytes->e_syms); + PUT_WORD (abfd, execp->a_entry , bytes->e_entry); + PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize); + PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize); +} + +/* Finish up the opening of a b.out file for reading. Fill in all the + fields that are not handled by common code. */ + +static const bfd_target * +aout_adobe_callback (bfd *abfd) +{ + struct internal_exec *execp = exec_hdr (abfd); + asection *sect; + struct external_segdesc ext[1]; + char *section_name; + char try_again[30]; /* Name and number. */ + char *newname; + int trynum; + flagword flags; + + /* Architecture and machine type -- unknown in this format. */ + bfd_set_arch_mach (abfd, bfd_arch_unknown, 0L); + + /* The positions of the string table and symbol table. */ + obj_str_filepos (abfd) = N_STROFF (*execp); + obj_sym_filepos (abfd) = N_SYMOFF (*execp); + + /* Suck up the section information from the file, one section at a time. */ + for (;;) + { + bfd_size_type amt = sizeof (*ext); + if (bfd_bread ( ext, amt, abfd) != amt) + { + if (bfd_get_error () != bfd_error_system_call) + bfd_set_error (bfd_error_wrong_format); + + return NULL; + } + switch (ext->e_type[0]) + { + case N_TEXT: + section_name = ".text"; + flags = SEC_CODE | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS; + break; + + case N_DATA: + section_name = ".data"; + flags = SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS; + break; + + case N_BSS: + section_name = ".bss"; + flags = SEC_DATA | SEC_HAS_CONTENTS; + break; + + case 0: + goto no_more_sections; + + default: + (*_bfd_error_handler) + (_("%B: Unknown section type in a.out.adobe file: %x\n"), + abfd, ext->e_type[0]); + goto no_more_sections; + } + + /* First one is called ".text" or whatever; subsequent ones are + ".text1", ".text2", ... */ + bfd_set_error (bfd_error_no_error); + sect = bfd_make_section_with_flags (abfd, section_name, flags); + trynum = 0; + + while (!sect) + { + if (bfd_get_error () != bfd_error_no_error) + /* Some other error -- slide into the sunset. */ + return NULL; + sprintf (try_again, "%s%d", section_name, ++trynum); + sect = bfd_make_section_with_flags (abfd, try_again, flags); + } + + /* Fix the name, if it is a sprintf'd name. */ + if (sect->name == try_again) + { + amt = strlen (sect->name); + newname = bfd_zalloc (abfd, amt); + if (newname == NULL) + return NULL; + strcpy (newname, sect->name); + sect->name = newname; + } + + /* Assumed big-endian. */ + sect->size = ((ext->e_size[0] << 8) + | ext->e_size[1] << 8 + | ext->e_size[2]); + sect->vma = H_GET_32 (abfd, ext->e_virtbase); + sect->filepos = H_GET_32 (abfd, ext->e_filebase); + /* FIXME XXX alignment? */ + + /* Set relocation information for first section of each type. */ + if (trynum == 0) + switch (ext->e_type[0]) + { + case N_TEXT: + sect->rel_filepos = N_TRELOFF (*execp); + sect->reloc_count = execp->a_trsize; + break; + + case N_DATA: + sect->rel_filepos = N_DRELOFF (*execp); + sect->reloc_count = execp->a_drsize; + break; + + default: + break; + } + } + no_more_sections: + + adata (abfd).reloc_entry_size = sizeof (struct reloc_std_external); + adata (abfd).symbol_entry_size = sizeof (struct external_nlist); + adata (abfd).page_size = 1; /* Not applicable. */ + adata (abfd).segment_size = 1; /* Not applicable. */ + adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; + + return abfd->xvec; +} + +static const bfd_target * +aout_adobe_object_p (bfd *abfd) +{ + struct internal_exec anexec; + struct external_exec exec_bytes; + char *targ; + bfd_size_type amt = EXEC_BYTES_SIZE; + + if (bfd_bread (& exec_bytes, amt, abfd) != amt) + { + if (bfd_get_error () != bfd_error_system_call) + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + + anexec.a_info = H_GET_32 (abfd, exec_bytes.e_info); + + /* Normally we just compare for the magic number. + However, a bunch of Adobe tools aren't fixed up yet; they generate + files using ZMAGIC(!). + If the environment variable GNUTARGET is set to "a.out.adobe", we will + take just about any a.out file as an Adobe a.out file. FIXME! */ + + if (N_BADMAG (anexec)) + { + targ = getenv ("GNUTARGET"); + if (targ && !strcmp (targ, a_out_adobe_vec.name)) + /* Just continue anyway, if specifically set to this format. */ + ; + else + { + bfd_set_error (bfd_error_wrong_format); + return NULL; + } + } + + aout_adobe_swap_exec_header_in (abfd, &exec_bytes, &anexec); + return aout_32_some_aout_object_p (abfd, &anexec, aout_adobe_callback); +} + +struct bout_data_struct +{ + struct aoutdata a; + struct internal_exec e; +}; + +static bfd_boolean +aout_adobe_mkobject (bfd *abfd) +{ + struct bout_data_struct *rawptr; + bfd_size_type amt = sizeof (struct bout_data_struct); + + rawptr = bfd_zalloc (abfd, amt); + if (rawptr == NULL) + return FALSE; + + abfd->tdata.bout_data = rawptr; + exec_hdr (abfd) = &rawptr->e; + + adata (abfd).reloc_entry_size = sizeof (struct reloc_std_external); + adata (abfd).symbol_entry_size = sizeof (struct external_nlist); + adata (abfd).page_size = 1; /* Not applicable. */ + adata (abfd).segment_size = 1; /* Not applicable. */ + adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; + + return TRUE; +} + +static void +aout_adobe_write_section (bfd *abfd ATTRIBUTE_UNUSED, + sec_ptr sect ATTRIBUTE_UNUSED) +{ + /* FIXME XXX. */ +} + +static bfd_boolean +aout_adobe_write_object_contents (bfd *abfd) +{ + struct external_exec swapped_hdr; + static struct external_segdesc sentinel[1]; /* Initialized to zero. */ + asection *sect; + bfd_size_type amt; + + exec_hdr (abfd)->a_info = ZMAGIC; + + /* Calculate text size as total of text sections, etc. */ + exec_hdr (abfd)->a_text = 0; + exec_hdr (abfd)->a_data = 0; + exec_hdr (abfd)->a_bss = 0; + exec_hdr (abfd)->a_trsize = 0; + exec_hdr (abfd)->a_drsize = 0; + + for (sect = abfd->sections; sect; sect = sect->next) + { + if (sect->flags & SEC_CODE) + { + exec_hdr (abfd)->a_text += sect->size; + exec_hdr (abfd)->a_trsize += sect->reloc_count * + sizeof (struct reloc_std_external); + } + else if (sect->flags & SEC_DATA) + { + exec_hdr (abfd)->a_data += sect->size; + exec_hdr (abfd)->a_drsize += sect->reloc_count * + sizeof (struct reloc_std_external); + } + else if (sect->flags & SEC_ALLOC && !(sect->flags & SEC_LOAD)) + exec_hdr (abfd)->a_bss += sect->size; + } + + exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd) + * sizeof (struct external_nlist); + exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); + + aout_adobe_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr); + + amt = EXEC_BYTES_SIZE; + if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 + || bfd_bwrite (& swapped_hdr, amt, abfd) != amt) + return FALSE; + + /* Now write out the section information. Text first, data next, rest + afterward. */ + for (sect = abfd->sections; sect; sect = sect->next) + if (sect->flags & SEC_CODE) + aout_adobe_write_section (abfd, sect); + + for (sect = abfd->sections; sect; sect = sect->next) + if (sect->flags & SEC_DATA) + aout_adobe_write_section (abfd, sect); + + for (sect = abfd->sections; sect; sect = sect->next) + if (!(sect->flags & (SEC_CODE | SEC_DATA))) + aout_adobe_write_section (abfd, sect); + + /* Write final `sentinel` section header (with type of 0). */ + amt = sizeof (*sentinel); + if (bfd_bwrite (sentinel, amt, abfd) != amt) + return FALSE; + + /* Now write out reloc info, followed by syms and strings. */ + if (bfd_get_symcount (abfd) != 0) + { + if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*exec_hdr (abfd))), SEEK_SET) + != 0) + return FALSE; + + if (! aout_32_write_syms (abfd)) + return FALSE; + + if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*exec_hdr (abfd))), SEEK_SET) + != 0) + return FALSE; + + for (sect = abfd->sections; sect; sect = sect->next) + if (sect->flags & SEC_CODE) + if (!aout_32_squirt_out_relocs (abfd, sect)) + return FALSE; + + if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*exec_hdr (abfd))), SEEK_SET) + != 0) + return FALSE; + + for (sect = abfd->sections; sect; sect = sect->next) + if (sect->flags & SEC_DATA) + if (!aout_32_squirt_out_relocs (abfd, sect)) + return FALSE; + } + + return TRUE; +} + +static bfd_boolean +aout_adobe_set_section_contents (bfd *abfd, + asection *section, + const void * location, + file_ptr offset, + bfd_size_type count) +{ + file_ptr section_start; + sec_ptr sect; + + /* Set by bfd.c handler. */ + if (! abfd->output_has_begun) + { + /* Assign file offsets to sections. Text sections are first, and + are contiguous. Then data sections. Everything else at the end. */ + section_start = N_TXTOFF (ignore<-->me); + + for (sect = abfd->sections; sect; sect = sect->next) + { + if (sect->flags & SEC_CODE) + { + sect->filepos = section_start; + /* FIXME: Round to alignment. */ + section_start += sect->size; + } + } + + for (sect = abfd->sections; sect; sect = sect->next) + { + if (sect->flags & SEC_DATA) + { + sect->filepos = section_start; + /* FIXME: Round to alignment. */ + section_start += sect->size; + } + } + + for (sect = abfd->sections; sect; sect = sect->next) + { + if (sect->flags & SEC_HAS_CONTENTS && + !(sect->flags & (SEC_CODE | SEC_DATA))) + { + sect->filepos = section_start; + /* FIXME: Round to alignment. */ + section_start += sect->size; + } + } + } + + /* Regardless, once we know what we're doing, we might as well get + going. */ + 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 bfd_boolean +aout_adobe_set_arch_mach (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 + || arch == bfd_arch_m68k) + return TRUE; + + return FALSE; +} + +static int +aout_adobe_sizeof_headers (bfd *ignore_abfd ATTRIBUTE_UNUSED, + struct bfd_link_info *info ATTRIBUTE_UNUSED) +{ + return sizeof (struct internal_exec); +} + +/* Build the transfer vector for Adobe A.Out files. */ + +#define aout_32_bfd_make_debug_symbol ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) +#define aout_32_bfd_reloc_type_lookup ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) +#define aout_32_bfd_reloc_name_lookup ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) +#define aout_32_close_and_cleanup aout_32_bfd_free_cached_info +#define aout_32_set_arch_mach aout_adobe_set_arch_mach +#define aout_32_set_section_contents aout_adobe_set_section_contents +#define aout_32_sizeof_headers aout_adobe_sizeof_headers +#define aout_32_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents +#define aout_32_get_section_contents_in_window _bfd_generic_get_section_contents_in_window +#define aout_32_bfd_relax_section bfd_generic_relax_section +#define aout_32_bfd_gc_sections bfd_generic_gc_sections +#define aout_32_bfd_lookup_section_flags bfd_generic_lookup_section_flags +#define aout_32_bfd_merge_sections bfd_generic_merge_sections +#define aout_32_bfd_is_group_section bfd_generic_is_group_section +#define aout_32_bfd_discard_group bfd_generic_discard_group +#define aout_32_section_already_linked _bfd_generic_section_already_linked +#define aout_32_bfd_define_common_symbol bfd_generic_define_common_symbol +#define aout_32_bfd_link_hash_table_create _bfd_generic_link_hash_table_create +#define aout_32_bfd_link_hash_table_free _bfd_generic_link_hash_table_free +#define aout_32_bfd_link_add_symbols _bfd_generic_link_add_symbols +#define aout_32_bfd_link_just_syms _bfd_generic_link_just_syms +#define aout_32_bfd_copy_link_hash_symbol_type \ + _bfd_generic_copy_link_hash_symbol_type +#define aout_32_bfd_final_link _bfd_generic_final_link +#define aout_32_bfd_link_split_section _bfd_generic_link_split_section + +const bfd_target a_out_adobe_vec = +{ + "a.out.adobe", /* Name. */ + bfd_target_aout_flavour, + BFD_ENDIAN_BIG, /* Data byte order is unknown (big assumed). */ + BFD_ENDIAN_BIG, /* Header byte order is big. */ + (HAS_RELOC | EXEC_P | /* Object flags. */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT ), + /* section flags */ + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_DATA | SEC_RELOC), + '_', /* Symbol leading char. */ + ' ', /* AR_pad_char. */ + 16, /* AR_max_namelen. */ + 0, /* match priority. */ + + 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, /* Headers. */ + + {_bfd_dummy_target, aout_adobe_object_p, /* bfd_check_format. */ + bfd_generic_archive_p, _bfd_dummy_target}, + {bfd_false, aout_adobe_mkobject, /* bfd_set_format. */ + _bfd_generic_mkarchive, bfd_false}, + {bfd_false, aout_adobe_write_object_contents,/* bfd_write_contents. */ + _bfd_write_archive_contents, bfd_false}, + + BFD_JUMP_TABLE_GENERIC (aout_32), + BFD_JUMP_TABLE_COPY (_bfd_generic), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd), + BFD_JUMP_TABLE_SYMBOLS (aout_32), + BFD_JUMP_TABLE_RELOCS (aout_32), + BFD_JUMP_TABLE_WRITE (aout_32), + BFD_JUMP_TABLE_LINK (aout_32), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + NULL, + + NULL +}; -- cgit v1.2.3