diff options
Diffstat (limited to 'ld/pe-dll.c')
| -rw-r--r-- | ld/pe-dll.c | 1835 |
1 files changed, 0 insertions, 1835 deletions
diff --git a/ld/pe-dll.c b/ld/pe-dll.c deleted file mode 100644 index 9fff27649ee..00000000000 --- a/ld/pe-dll.c +++ /dev/null @@ -1,1835 +0,0 @@ -/* Routines to help build PEI-format DLLs (Win32 etc) - Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc. - Written by DJ Delorie <dj@cygnus.com> - - This file is part of GLD, the Gnu Linker. - - GLD 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, or (at your option) - any later version. - - GLD 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 GLD; see the file COPYING. If not, write to the Free - Software Foundation, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libiberty.h" - -#include <time.h> -#include <ctype.h> - -#include "ld.h" -#include "ldexp.h" -#include "ldlang.h" -#include "ldwrite.h" -#include "ldmisc.h" -#include "ldgram.h" -#include "ldmain.h" -#include "ldemul.h" -#include "coff/internal.h" -#include "../bfd/libcoff.h" -#include "deffile.h" -#include "pe-dll.h" - -/************************************************************************ - - This file turns a regular Windows PE image into a DLL. Because of - the complexity of this operation, it has been broken down into a - number of separate modules which are all called by the main function - at the end of this file. This function is not re-entrant and is - normally only called once, so static variables are used to reduce - the number of parameters and return values required. - - See also: ld/emultempl/pe.em - - ************************************************************************/ - -/* for emultempl/pe.em */ - -def_file *pe_def_file = 0; -int pe_dll_export_everything = 0; -int pe_dll_do_default_excludes = 1; -int pe_dll_kill_ats = 0; -int pe_dll_stdcall_aliases = 0; -int pe_dll_warn_dup_exports = 0; -int pe_dll_compat_implib = 0; - -/************************************************************************ - - static variables and types - - ************************************************************************/ - -static bfd_vma image_base; - -static bfd *filler_bfd; -static struct sec *edata_s, *reloc_s; -static unsigned char *edata_d, *reloc_d; -static size_t edata_sz, reloc_sz; - -typedef struct { - char *target_name; - char *object_target; - unsigned int imagebase_reloc; - int pe_arch; - int bfd_arch; - int underscored; -} pe_details_type; - -#define PE_ARCH_i386 1 - -static pe_details_type pe_detail_list[] = { - { - "pei-i386", - "pe-i386", - 7 /* R_IMAGEBASE */, - PE_ARCH_i386, - bfd_arch_i386, - 1 - }, - { NULL, NULL, 0, 0, 0, 0 } -}; - -static pe_details_type *pe_details; - -#define U(str) (pe_details->underscored ? "_" str : str) - -void -pe_dll_id_target (target) - const char *target; -{ - int i; - for (i=0; pe_detail_list[i].target_name; i++) - if (strcmp (pe_detail_list[i].target_name, target) == 0) - { - pe_details = pe_detail_list+i; - return; - } - einfo (_("%XUnsupported PEI architecture: %s\n"), target); - exit (1); -} - -/************************************************************************ - - Helper functions for qsort. Relocs must be sorted so that we can write - them out by pages. - - ************************************************************************/ - -typedef struct { - bfd_vma vma; - char type; - short extra; -} reloc_data_type; - -static int -reloc_sort (va, vb) - const void *va, *vb; -{ - bfd_vma a = ((reloc_data_type *) va)->vma; - bfd_vma b = ((reloc_data_type *) vb)->vma; - return (a > b) ? 1 : ((a < b) ? -1 : 0); -} - -static int -pe_export_sort (va, vb) - const void *va, *vb; -{ - def_file_export *a = (def_file_export *) va; - def_file_export *b = (def_file_export *) vb; - return strcmp (a->name, b->name); -} - -/************************************************************************ - - Read and process the .DEF file - - ************************************************************************/ - -/* These correspond to the entries in pe_def_file->exports[]. I use - exported_symbol_sections[i] to tag whether or not the symbol was - defined, since we can't export symbols we don't have. */ - -static bfd_vma *exported_symbol_offsets; -static struct sec **exported_symbol_sections; - -static int export_table_size; -static int count_exported; -static int count_exported_byname; -static int count_with_ordinals; -static const char *dll_name; -static int min_ordinal, max_ordinal; -static int *exported_symbols; - -typedef struct exclude_list_struct - { - char *string; - struct exclude_list_struct *next; - } -exclude_list_struct; -static struct exclude_list_struct *excludes = 0; - -void -pe_dll_add_excludes (new_excludes) - const char *new_excludes; -{ - char *local_copy; - char *exclude_string; - - local_copy = xstrdup (new_excludes); - - exclude_string = strtok (local_copy, ",:"); - for (; exclude_string; exclude_string = strtok (NULL, ",:")) - { - struct exclude_list_struct *new_exclude; - - new_exclude = ((struct exclude_list_struct *) - xmalloc (sizeof (struct exclude_list_struct))); - new_exclude->string = (char *) xmalloc (strlen (exclude_string) + 1); - strcpy (new_exclude->string, exclude_string); - new_exclude->next = excludes; - excludes = new_exclude; - } - - free (local_copy); -} - -static int -auto_export (d, n) - def_file *d; - const char *n; -{ - int i; - struct exclude_list_struct *ex; - for (i = 0; i < d->num_exports; i++) - if (strcmp (d->exports[i].name, n) == 0) - return 0; - if (pe_dll_do_default_excludes) - { - if (strcmp (n, "DllMain@12") == 0) - return 0; - if (strcmp (n, "DllEntryPoint@0") == 0) - return 0; - if (strcmp (n, "impure_ptr") == 0) - return 0; - } - for (ex = excludes; ex; ex = ex->next) - if (strcmp (n, ex->string) == 0) - return 0; - return 1; -} - -static void -process_def_file (abfd, info) - bfd *abfd ATTRIBUTE_UNUSED; - struct bfd_link_info *info; -{ - int i, j; - struct bfd_link_hash_entry *blhe; - bfd *b; - struct sec *s; - def_file_export *e=0; - - if (!pe_def_file) - pe_def_file = def_file_empty (); - - /* First, run around to all the objects looking for the .drectve - sections, and push those into the def file too */ - - for (b = info->input_bfds; b; b = b->link_next) - { - s = bfd_get_section_by_name (b, ".drectve"); - if (s) - { - int size = bfd_get_section_size_before_reloc (s); - char *buf = xmalloc (size); - bfd_get_section_contents (b, s, buf, 0, size); - def_file_add_directive (pe_def_file, buf, size); - free (buf); - } - } - - /* Now, maybe export everything else the default way */ - - if (pe_dll_export_everything || pe_def_file->num_exports == 0) - { - for (b = info->input_bfds; b; b = b->link_next) - { - asymbol **symbols; - int nsyms, symsize; - - symsize = bfd_get_symtab_upper_bound (b); - symbols = (asymbol **) xmalloc (symsize); - nsyms = bfd_canonicalize_symtab (b, symbols); - - for (j = 0; j < nsyms; j++) - { - if ((symbols[j]->flags & (BSF_FUNCTION | BSF_GLOBAL)) - == (BSF_FUNCTION | BSF_GLOBAL)) - { - const char *sn = symbols[j]->name; - if (*sn == '_') - sn++; - if (auto_export (pe_def_file, sn)) - def_file_add_export (pe_def_file, sn, 0, -1); - } - } - } - } - -#undef NE -#define NE pe_def_file->num_exports - - /* Canonicalize the export list */ - - if (pe_dll_kill_ats) - { - for (i = 0; i < NE; i++) - { - if (strchr (pe_def_file->exports[i].name, '@')) - { - /* This will preserve internal_name, which may have been pointing - to the same memory as name, or might not have */ - char *tmp = xstrdup (pe_def_file->exports[i].name); - *(strchr (tmp, '@')) = 0; - pe_def_file->exports[i].name = tmp; - } - } - } - - if (pe_dll_stdcall_aliases) - { - for (i = 0; i < NE; i++) - { - if (strchr (pe_def_file->exports[i].name, '@')) - { - char *tmp = xstrdup (pe_def_file->exports[i].name); - *(strchr (tmp, '@')) = 0; - if (auto_export (pe_def_file, tmp)) - def_file_add_export (pe_def_file, tmp, - pe_def_file->exports[i].internal_name, -1); - else - free (tmp); - } - } - } - - e = pe_def_file->exports; /* convenience, but watch out for it changing */ - - exported_symbol_offsets = (bfd_vma *) xmalloc (NE * sizeof (bfd_vma)); - exported_symbol_sections = (struct sec **) xmalloc (NE * sizeof (struct sec *)); - - memset (exported_symbol_sections, 0, NE * sizeof (struct sec *)); - max_ordinal = 0; - min_ordinal = 65536; - count_exported = 0; - count_exported_byname = 0; - count_with_ordinals = 0; - - qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), pe_export_sort); - for (i = 0, j = 0; i < NE; i++) - { - if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) - { - /* This is a duplicate. */ - if (e[j - 1].ordinal != -1 - && e[i].ordinal != -1 - && e[j - 1].ordinal != e[i].ordinal) - { - if (pe_dll_warn_dup_exports) - /* xgettext:c-format */ - einfo (_("%XError, duplicate EXPORT with oridinals: %s (%d vs %d)\n"), - e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); - } - else - { - if (pe_dll_warn_dup_exports) - /* xgettext:c-format */ - einfo (_("Warning, duplicate EXPORT: %s\n"), - e[j - 1].name); - } - if (e[i].ordinal) - e[j - 1].ordinal = e[i].ordinal; - e[j - 1].flag_private |= e[i].flag_private; - e[j - 1].flag_constant |= e[i].flag_constant; - e[j - 1].flag_noname |= e[i].flag_noname; - e[j - 1].flag_data |= e[i].flag_data; - } - else - { - if (i != j) - e[j] = e[i]; - j++; - } - } - pe_def_file->num_exports = j; /* == NE */ - - for (i = 0; i < NE; i++) - { - char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); - if (pe_details->underscored) - { - *name = '_'; - strcpy (name + 1, pe_def_file->exports[i].internal_name); - } - else - strcpy (name, pe_def_file->exports[i].internal_name); - - blhe = bfd_link_hash_lookup (info->hash, - name, - false, false, true); - - if (blhe - && (blhe->type == bfd_link_hash_defined - || (blhe->type == bfd_link_hash_common))) - { - count_exported++; - if (!pe_def_file->exports[i].flag_noname) - count_exported_byname++; - - /* Only fill in the sections. The actual offsets are computed - in fill_exported_offsets() after common symbols are laid - out. */ - if (blhe->type == bfd_link_hash_defined) - exported_symbol_sections[i] = blhe->u.def.section; - else - exported_symbol_sections[i] = blhe->u.c.p->section; - - if (pe_def_file->exports[i].ordinal != -1) - { - if (max_ordinal < pe_def_file->exports[i].ordinal) - max_ordinal = pe_def_file->exports[i].ordinal; - if (min_ordinal > pe_def_file->exports[i].ordinal) - min_ordinal = pe_def_file->exports[i].ordinal; - count_with_ordinals++; - } - } - else if (blhe && blhe->type == bfd_link_hash_undefined) - { - /* xgettext:c-format */ - einfo (_("%XCannot export %s: symbol not defined\n"), - pe_def_file->exports[i].internal_name); - } - else if (blhe) - { - /* xgettext:c-format */ - einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), - pe_def_file->exports[i].internal_name, - blhe->type, bfd_link_hash_defined); - } - else - { - /* xgettext:c-format */ - einfo (_("%XCannot export %s: symbol not found\n"), - pe_def_file->exports[i].internal_name); - } - free (name); - } -} - -/************************************************************************ - - Build the bfd that will contain .edata and .reloc sections - - ************************************************************************/ - -static void -build_filler_bfd (include_edata) - int include_edata; -{ - lang_input_statement_type *filler_file; - filler_file = lang_add_input_file ("dll stuff", - lang_input_file_is_fake_enum, - NULL); - filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); - if (filler_bfd == NULL - || !bfd_set_arch_mach (filler_bfd, - bfd_get_arch (output_bfd), - bfd_get_mach (output_bfd))) - { - einfo ("%X%P: can not create BFD %E\n"); - return; - } - - if (include_edata) - { - edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); - if (edata_s == NULL - || !bfd_set_section_flags (filler_bfd, edata_s, - (SEC_HAS_CONTENTS - | SEC_ALLOC - | SEC_LOAD - | SEC_KEEP - | SEC_IN_MEMORY))) - { - einfo ("%X%P: can not create .edata section: %E\n"); - return; - } - bfd_set_section_size (filler_bfd, edata_s, edata_sz); - } - - reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); - if (reloc_s == NULL - || !bfd_set_section_flags (filler_bfd, reloc_s, - (SEC_HAS_CONTENTS - | SEC_ALLOC - | SEC_LOAD - | SEC_KEEP - | SEC_IN_MEMORY))) - { - einfo ("%X%P: can not create .reloc section: %E\n"); - return; - } - bfd_set_section_size (filler_bfd, reloc_s, 0); - - ldlang_add_file (filler_file); -} - -/************************************************************************ - - Gather all the exported symbols and build the .edata section - - ************************************************************************/ - -static void -generate_edata (abfd, info) - bfd *abfd; - struct bfd_link_info *info ATTRIBUTE_UNUSED; -{ - int i, next_ordinal; - int name_table_size = 0; - const char *dlnp; - - /* First, we need to know how many exported symbols there are, - and what the range of ordinals is. */ - - if (pe_def_file->name) - { - dll_name = pe_def_file->name; - } - else - { - dll_name = abfd->filename; - for (dlnp = dll_name; *dlnp; dlnp++) - { - if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') - dll_name = dlnp + 1; - } - } - - if (count_with_ordinals && max_ordinal > count_exported) - { - if (min_ordinal > max_ordinal - count_exported + 1) - min_ordinal = max_ordinal - count_exported + 1; - } - else - { - min_ordinal = 1; - max_ordinal = count_exported; - } - export_table_size = max_ordinal - min_ordinal + 1; - - exported_symbols = (int *) xmalloc (export_table_size * sizeof (int)); - for (i = 0; i < export_table_size; i++) - exported_symbols[i] = -1; - - /* Now we need to assign ordinals to those that don't have them */ - for (i = 0; i < NE; i++) - { - if (exported_symbol_sections[i]) - { - if (pe_def_file->exports[i].ordinal != -1) - { - int ei = pe_def_file->exports[i].ordinal - min_ordinal; - int pi = exported_symbols[ei]; - if (pi != -1) - { - /* xgettext:c-format */ - einfo (_("%XError, oridinal used twice: %d (%s vs %s)\n"), - pe_def_file->exports[i].ordinal, - pe_def_file->exports[i].name, - pe_def_file->exports[pi].name); - } - exported_symbols[ei] = i; - } - name_table_size += strlen (pe_def_file->exports[i].name) + 1; - } - } - - next_ordinal = min_ordinal; - for (i = 0; i < NE; i++) - if (exported_symbol_sections[i]) - if (pe_def_file->exports[i].ordinal == -1) - { - while (exported_symbols[next_ordinal - min_ordinal] != -1) - next_ordinal++; - exported_symbols[next_ordinal - min_ordinal] = i; - pe_def_file->exports[i].ordinal = next_ordinal; - } - - /* OK, now we can allocate some memory */ - - edata_sz = (40 /* directory */ - + 4 * export_table_size /* addresses */ - + 4 * count_exported_byname /* name ptrs */ - + 2 * count_exported_byname /* ordinals */ - + name_table_size + strlen (dll_name) + 1); -} - -/* Fill the exported symbol offsets. The preliminary work has already - been done in process_def_file(). */ - -static void -fill_exported_offsets (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - int i, j; - struct bfd_link_hash_entry *blhe; - bfd *b; - struct sec *s; - def_file_export *e=0; - - for (i = 0; i < pe_def_file->num_exports; i++) - { - char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); - if (pe_details->underscored) - { - *name = '_'; - strcpy (name + 1, pe_def_file->exports[i].internal_name); - } - else - strcpy (name, pe_def_file->exports[i].internal_name); - - blhe = bfd_link_hash_lookup (info->hash, - name, - false, false, true); - - if (blhe && (blhe->type == bfd_link_hash_defined)) - { - exported_symbol_offsets[i] = blhe->u.def.value; - } - free (name); - } -} - -static void -fill_edata (abfd, info) - bfd *abfd; - struct bfd_link_info *info ATTRIBUTE_UNUSED; -{ - int i, hint; - unsigned char *edirectory; - unsigned long *eaddresses; - unsigned long *enameptrs; - unsigned short *eordinals; - unsigned char *enamestr; - time_t now; - - time (&now); - - edata_d = (unsigned char *) xmalloc (edata_sz); - - /* Note use of array pointer math here */ - edirectory = edata_d; - eaddresses = (unsigned long *) (edata_d + 40); - enameptrs = eaddresses + export_table_size; - eordinals = (unsigned short *) (enameptrs + count_exported_byname); - enamestr = (char *) (eordinals + count_exported_byname); - -#define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) + edata_s->output_section->vma - image_base) - - memset (edata_d, 0, 40); - bfd_put_32 (abfd, now, edata_d + 4); - if (pe_def_file->version_major != -1) - { - bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); - bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); - } - bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); - strcpy (enamestr, dll_name); - enamestr += strlen (enamestr) + 1; - bfd_put_32 (abfd, min_ordinal, edata_d + 16); - bfd_put_32 (abfd, export_table_size, edata_d + 20); - bfd_put_32 (abfd, count_exported_byname, edata_d + 24); - bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); - bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); - bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); - - fill_exported_offsets (abfd, info); - - /* Ok, now for the filling in part */ - hint = 0; - for (i = 0; i < export_table_size; i++) - { - int s = exported_symbols[i]; - if (s != -1) - { - struct sec *ssec = exported_symbol_sections[s]; - unsigned long srva = (exported_symbol_offsets[s] - + ssec->output_section->vma - + ssec->output_offset); - - bfd_put_32 (abfd, srva - image_base, (void *) (eaddresses + i)); - if (!pe_def_file->exports[s].flag_noname) - { - char *ename = pe_def_file->exports[s].name; - bfd_put_32 (abfd, ERVA (enamestr), (void *) enameptrs); - strcpy (enamestr, ename); - enamestr += strlen (enamestr) + 1; - bfd_put_16 (abfd, i, (void *) eordinals); - enameptrs++; - pe_def_file->exports[s].hint = hint++; - } - eordinals++; - } - } -} - -/************************************************************************ - - Gather all the relocations and build the .reloc section - - ************************************************************************/ - -static void -generate_reloc (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - - /* for .reloc stuff */ - reloc_data_type *reloc_data; - int total_relocs = 0; - int i; - unsigned long sec_page = (unsigned long) (-1); - unsigned long page_ptr, page_count; - int bi; - bfd *b; - struct sec *s; - - total_relocs = 0; - for (b = info->input_bfds; b; b = b->link_next) - for (s = b->sections; s; s = s->next) - total_relocs += s->reloc_count; - - reloc_data = (reloc_data_type *) xmalloc (total_relocs * sizeof (reloc_data_type)); - - total_relocs = 0; - bi = 0; - for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) - { - arelent **relocs; - int relsize, nrelocs, i; - - for (s = b->sections; s; s = s->next) - { - unsigned long sec_vma = s->output_section->vma + s->output_offset; - asymbol **symbols; - int nsyms, symsize; - - /* if it's not loaded, we don't need to relocate it this way */ - if (!(s->output_section->flags & SEC_LOAD)) - continue; - - /* I don't know why there would be a reloc for these, but I've - seen it happen - DJ */ - if (s->output_section == &bfd_abs_section) - continue; - - if (s->output_section->vma == 0) - { - /* Huh? Shouldn't happen, but punt if it does */ - einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", - s->output_section->name, s->output_section->index, - s->output_section->flags); - continue; - } - - symsize = bfd_get_symtab_upper_bound (b); - symbols = (asymbol **) xmalloc (symsize); - nsyms = bfd_canonicalize_symtab (b, symbols); - - relsize = bfd_get_reloc_upper_bound (b, s); - relocs = (arelent **) xmalloc ((size_t) relsize); - nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); - - for (i = 0; i < nrelocs; i++) - { - if (!relocs[i]->howto->pc_relative - && relocs[i]->howto->type != pe_details->imagebase_reloc) - { - bfd_vma sym_vma; - struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; - sym_vma = (relocs[i]->addend - + sym->value - + sym->section->vma - + sym->section->output_offset - + sym->section->output_section->vma); - reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; - switch (relocs[i]->howto->bitsize*1000 - + relocs[i]->howto->rightshift) - { - case 32000: - reloc_data[total_relocs].type = 3; - total_relocs++; - break; - default: - /* xgettext:c-format */ - einfo (_("%XError: %d-bit reloc in dll\n"), - relocs[i]->howto->bitsize); - break; - } - } - } - free (relocs); - /* Warning: the allocated symbols are remembered in BFD and reused - later, so don't free them! */ - /* free (symbols); */ - } - } - - /* At this point, we have total_relocs relocation addresses in - reloc_addresses, which are all suitable for the .reloc section. - We must now create the new sections. */ - - qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); - - for (i = 0; i < total_relocs; i++) - { - unsigned long this_page = (reloc_data[i].vma >> 12); - if (this_page != sec_page) - { - reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ - reloc_sz += 8; - sec_page = this_page; - } - reloc_sz += 2; - } - reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ - - reloc_d = (unsigned char *) xmalloc (reloc_sz); - - sec_page = (unsigned long) (-1); - reloc_sz = 0; - page_ptr = (unsigned long) (-1); - page_count = 0; - for (i = 0; i < total_relocs; i++) - { - unsigned long rva = reloc_data[i].vma - image_base; - unsigned long this_page = (rva & ~0xfff); - if (this_page != sec_page) - { - while (reloc_sz & 3) - reloc_d[reloc_sz++] = 0; - if (page_ptr != (unsigned long) (-1)) - bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); - bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); - page_ptr = reloc_sz; - reloc_sz += 8; - sec_page = this_page; - page_count = 0; - } - bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type<<12), - reloc_d + reloc_sz); - reloc_sz += 2; - if (reloc_data[i].type == 4) - { - bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); - reloc_sz += 2; - } - page_count++; - } - while (reloc_sz & 3) - reloc_d[reloc_sz++] = 0; - if (page_ptr != (unsigned long) (-1)) - bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); - while (reloc_sz < reloc_s->_raw_size) - reloc_d[reloc_sz++] = 0; -} - -/************************************************************************ - - Given the exiting def_file structure, print out a .DEF file that - corresponds to it. - - ************************************************************************/ - -static void -quoteput (s, f, needs_quotes) - char *s; - FILE * f; - int needs_quotes; -{ - char *cp; - for (cp = s; *cp; cp++) - if (*cp == '\'' - || *cp == '"' - || *cp == '\\' - || isspace ((unsigned char) *cp) - || *cp == ',' - || *cp == ';') - needs_quotes = 1; - if (needs_quotes) - { - putc ('"', f); - while (*s) - { - if (*s == '"' || *s == '\\') - putc ('\\', f); - putc (*s, f); - s++; - } - putc ('"', f); - } - else - fputs (s, f); -} - -void -pe_dll_generate_def_file (pe_out_def_filename) - const char *pe_out_def_filename; -{ - int i; - FILE *out = fopen (pe_out_def_filename, "w"); - if (out == NULL) - { - /* xgettext:c-format */ - einfo (_("%s: Can't open output def file %s\n"), - program_name, pe_out_def_filename); - } - - if (pe_def_file) - { - if (pe_def_file->name) - { - if (pe_def_file->is_dll) - fprintf (out, "LIBRARY "); - else - fprintf (out, "NAME "); - quoteput (pe_def_file->name, out, 1); - if (pe_data (output_bfd)->pe_opthdr.ImageBase) - fprintf (out, " BASE=0x%lx", - (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); - fprintf (out, "\n"); - } - - if (pe_def_file->description) - { - fprintf (out, "DESCRIPTION "); - quoteput (pe_def_file->description, out, 1); - fprintf (out, "\n"); - } - - if (pe_def_file->version_minor != -1) - fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, - pe_def_file->version_minor); - else if (pe_def_file->version_major != -1) - fprintf (out, "VERSION %d\n", pe_def_file->version_major); - - if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) - fprintf (out, "\n"); - - if (pe_def_file->stack_commit != -1) - fprintf (out, "STACKSIZE 0x%x,0x%x\n", - pe_def_file->stack_reserve, pe_def_file->stack_commit); - else if (pe_def_file->stack_reserve != -1) - fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); - if (pe_def_file->heap_commit != -1) - fprintf (out, "HEAPSIZE 0x%x,0x%x\n", - pe_def_file->heap_reserve, pe_def_file->heap_commit); - else if (pe_def_file->heap_reserve != -1) - fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); - - if (pe_def_file->num_section_defs > 0) - { - fprintf (out, "\nSECTIONS\n\n"); - for (i = 0; i < pe_def_file->num_section_defs; i++) - { - fprintf (out, " "); - quoteput (pe_def_file->section_defs[i].name, out, 0); - if (pe_def_file->section_defs[i].class) - { - fprintf (out, " CLASS "); - quoteput (pe_def_file->section_defs[i].class, out, 0); - } - if (pe_def_file->section_defs[i].flag_read) - fprintf (out, " READ"); - if (pe_def_file->section_defs[i].flag_write) - fprintf (out, " WRITE"); - if (pe_def_file->section_defs[i].flag_execute) - fprintf (out, " EXECUTE"); - if (pe_def_file->section_defs[i].flag_shared) - fprintf (out, " SHARED"); - fprintf (out, "\n"); - } - } - - if (pe_def_file->num_exports > 0) - { - fprintf (out, "\nEXPORTS\n\n"); - for (i = 0; i < pe_def_file->num_exports; i++) - { - def_file_export *e = pe_def_file->exports + i; - fprintf (out, " "); - quoteput (e->name, out, 0); - if (e->internal_name && strcmp (e->internal_name, e->name)) - { - fprintf (out, " = "); - quoteput (e->internal_name, out, 0); - } - if (e->ordinal != -1) - fprintf (out, " @%d", e->ordinal); - if (e->flag_private) - fprintf (out, " PRIVATE"); - if (e->flag_constant) - fprintf (out, " CONSTANT"); - if (e->flag_noname) - fprintf (out, " NONAME"); - if (e->flag_data) - fprintf (out, " DATA"); - - fprintf (out, "\n"); - } - } - - if (pe_def_file->num_imports > 0) - { - fprintf (out, "\nIMPORTS\n\n"); - for (i = 0; i < pe_def_file->num_imports; i++) - { - def_file_import *im = pe_def_file->imports + i; - fprintf (out, " "); - if (im->internal_name - && (!im->name || strcmp (im->internal_name, im->name))) - { - quoteput (im->internal_name, out, 0); - fprintf (out, " = "); - } - quoteput (im->module->name, out, 0); - fprintf (out, "."); - if (im->name) - quoteput (im->name, out, 0); - else - fprintf (out, "%d", im->ordinal); - fprintf (out, "\n"); - } - } - } - else - fprintf (out, _("; no contents available\n")); - - if (fclose (out) == EOF) - { - /* xgettext:c-format */ - einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); - } -} - -/************************************************************************ - - Generate the import library - - ************************************************************************/ - -static asymbol **symtab; -static int symptr; -static int tmp_seq; -static const char *dll_filename; -static char *dll_symname; - -#define UNDSEC (asection *) &bfd_und_section - -static asection * -quick_section(abfd, name, flags, align) - bfd *abfd; - const char *name; - int flags; - int align; -{ - asection *sec; - asymbol *sym; - - sec = bfd_make_section_old_way (abfd, name); - bfd_set_section_flags (abfd, sec, flags - | SEC_ALLOC - | SEC_LOAD - | SEC_KEEP - ); - bfd_set_section_alignment (abfd, sec, align); - /* remember to undo this before trying to link internally! */ - sec->output_section = sec; - - sym = bfd_make_empty_symbol (abfd); - symtab[symptr++] = sym; - sym->name = sec->name; - sym->section = sec; - sym->flags = BSF_LOCAL; - sym->value = 0; - - return sec; -} - -static void -quick_symbol (abfd, n1, n2, n3, sec, flags, addr) - bfd *abfd; - char *n1; - char *n2; - char *n3; - asection *sec; - int flags; - int addr; -{ - asymbol *sym; - char *name = (char *) xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); - strcpy (name, n1); - strcat (name, n2); - strcat (name, n3); - sym = bfd_make_empty_symbol (abfd); - sym->name = name; - sym->section = sec; - sym->flags = flags; - sym->value = addr; - symtab[symptr++] = sym; -} - -static arelent *reltab = 0; -static int relcount = 0, relsize = 0; - -static void -quick_reloc (abfd, address, which_howto, symidx) - bfd *abfd; - int address; - int which_howto; - int symidx; -{ - if (relcount >= (relsize-1)) - { - relsize += 10; - if (reltab) - reltab = (arelent *) xrealloc (reltab, relsize * sizeof (arelent)); - else - reltab = (arelent *) xmalloc (relsize * sizeof (arelent)); - } - reltab[relcount].address = address; - reltab[relcount].addend = 0; - reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); - reltab[relcount].sym_ptr_ptr = symtab + symidx; - relcount++; -} - -static void -save_relocs (asection *sec) -{ - int i; - sec->relocation = reltab; - sec->reloc_count = relcount; - sec->orelocation = (arelent **) xmalloc ((relcount+1) * sizeof (arelent *)); - for (i=0; i<relcount; i++) - sec->orelocation[i] = sec->relocation + i; - sec->orelocation[relcount] = 0; - sec->flags |= SEC_RELOC; - reltab = 0; - relcount = relsize = 0; -} - -/* - * .section .idata$2 - * .global __head_my_dll - * __head_my_dll: - * .rva hname - * .long 0 - * .long 0 - * .rva __my_dll_iname - * .rva fthunk - * - * .section .idata$5 - * .long 0 - * fthunk: - * - * .section .idata$4 - * .long 0 - * hname: - */ - -static bfd * -make_head (parent) - bfd *parent; -{ - asection *id2, *id5, *id4; - unsigned char *d2, *d5, *d4; - char *oname; - bfd *abfd; - - oname = (char *) xmalloc (20); - sprintf (oname, "d%06d.o", tmp_seq); - tmp_seq++; - - abfd = bfd_create (oname, parent); - bfd_find_target (pe_details->object_target, abfd); - bfd_make_writable (abfd); - - bfd_set_format (abfd, bfd_object); - bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); - - symptr = 0; - symtab = (asymbol **) xmalloc (6 * sizeof (asymbol *)); - id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); - id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); - id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); - quick_symbol (abfd, U("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); - quick_symbol (abfd, U(""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); - - /* OK, pay attention here. I got confused myself looking back at - it. We create a four-byte section to mark the beginning of the - list, and we include an offset of 4 in the section, so that the - pointer to the list points to the *end* of this section, which is - the start of the list of sections from other objects. */ - - bfd_set_section_size (abfd, id2, 20); - d2 = (unsigned char *) xmalloc (20); - id2->contents = d2; - memset (d2, 0, 20); - d2[0] = d2[16] = 4; /* reloc addend */ - quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); - quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); - quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); - save_relocs (id2); - - bfd_set_section_size (abfd, id5, 4); - d5 = (unsigned char *) xmalloc (4); - id5->contents = d5; - memset (d5, 0, 4); - - bfd_set_section_size (abfd, id4, 4); - d4 = (unsigned char *) xmalloc (4); - id4->contents = d4; - memset (d4, 0, 4); - - bfd_set_symtab (abfd, symtab, symptr); - - bfd_set_section_contents (abfd, id2, d2, 0, 20); - bfd_set_section_contents (abfd, id5, d5, 0, 4); - bfd_set_section_contents (abfd, id4, d4, 0, 4); - - bfd_make_readable (abfd); - return abfd; -} - -/* - * .section .idata$4 - * .long 0 - * .section .idata$5 - * .long 0 - * .section idata$7 - * .global __my_dll_iname - *__my_dll_iname: - * .asciz "my.dll" - */ - -static bfd * -make_tail (parent) - bfd *parent; -{ - asection *id4, *id5, *id7; - unsigned char *d4, *d5, *d7; - int len; - char *oname; - bfd *abfd; - - oname = (char *) xmalloc (20); - sprintf (oname, "d%06d.o", tmp_seq); - tmp_seq++; - - abfd = bfd_create (oname, parent); - bfd_find_target (pe_details->object_target, abfd); - bfd_make_writable (abfd); - - bfd_set_format (abfd, bfd_object); - bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); - - symptr = 0; - symtab = (asymbol **) xmalloc (5 * sizeof (asymbol *)); - id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); - id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); - id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); - quick_symbol (abfd, U(""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); - - bfd_set_section_size (abfd, id4, 4); - d4 = (unsigned char *) xmalloc (4); - id4->contents = d4; - memset (d4, 0, 4); - - bfd_set_section_size (abfd, id5, 4); - d5 = (unsigned char *) xmalloc (4); - id5->contents = d5; - memset (d5, 0, 4); - - len = strlen (dll_filename)+1; - if (len & 1) - len ++; - bfd_set_section_size (abfd, id7, len); - d7 = (unsigned char *) xmalloc (len); - id7->contents = d7; - strcpy (d7, dll_filename); - - bfd_set_symtab (abfd, symtab, symptr); - - bfd_set_section_contents (abfd, id4, d4, 0, 4); - bfd_set_section_contents (abfd, id5, d5, 0, 4); - bfd_set_section_contents (abfd, id7, d7, 0, len); - - bfd_make_readable (abfd); - return abfd; -} - -/* - * .text - * .global _function - * .global ___imp_function - * .global __imp__function - *_function: - * jmp *__imp__function: - * - * .section idata$7 - * .long __head_my_dll - * - * .section .idata$5 - *___imp_function: - *__imp__function: - *iat? - * .section .idata$4 - *iat? - * .section .idata$6 - *ID<ordinal>: - * .short <hint> - * .asciz "function" xlate? (add underscore, kill at) - */ - -static unsigned char jmp_ix86_bytes[] = { - 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 -}; - - -static bfd * -make_one (exp, parent) - def_file_export *exp; - bfd *parent; -{ - asection *tx, *id7, *id5, *id4, *id6; - unsigned char *td, *d7, *d5, *d4, *d6; - int len; - char *oname; - bfd *abfd; - unsigned char *jmp_bytes; - int jmp_byte_count; - - switch (pe_details->pe_arch) - { - case PE_ARCH_i386: - jmp_bytes = jmp_ix86_bytes; - jmp_byte_count = sizeof (jmp_ix86_bytes); - break; - } - - oname = (char *) xmalloc (20); - sprintf (oname, "d%06d.o", tmp_seq); - tmp_seq++; - - abfd = bfd_create (oname, parent); - bfd_find_target (pe_details->object_target, abfd); - bfd_make_writable (abfd); - - bfd_set_format (abfd, bfd_object); - bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); - - symptr = 0; - symtab = (asymbol **) xmalloc (10 * sizeof (asymbol *)); - tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); - id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); - id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); - id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); - id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); - if (! exp->flag_data) - quick_symbol (abfd, U(""), exp->internal_name, "", tx, BSF_GLOBAL, 0); - quick_symbol (abfd, U("_head_"), dll_symname, "", UNDSEC, BSF_GLOBAL, 0); - quick_symbol (abfd, U("__imp_"), exp->internal_name, "", id5, BSF_GLOBAL, 0); - if (pe_dll_compat_implib) - quick_symbol (abfd, U("__imp_"), exp->internal_name, "", - id5, BSF_GLOBAL, 0); - - bfd_set_section_size (abfd, tx, jmp_byte_count); - td = (unsigned char *) xmalloc (jmp_byte_count); - tx->contents = td; - memcpy (td, jmp_bytes, jmp_byte_count); - switch (pe_details->pe_arch) - { - case PE_ARCH_i386: - quick_reloc (abfd, 2, BFD_RELOC_32, 2); - break; - } - save_relocs (tx); - - bfd_set_section_size (abfd, id7, 4); - d7 = (unsigned char *) xmalloc (4); - id7->contents = d7; - memset (d7, 0, 4); - quick_reloc (abfd, 0, BFD_RELOC_RVA, 6); - save_relocs (id7); - - bfd_set_section_size (abfd, id5, 4); - d5 = (unsigned char *) xmalloc (4); - id5->contents = d5; - memset (d5, 0, 4); - if (exp->flag_noname) - { - d5[0] = exp->ordinal; - d5[1] = exp->ordinal >> 8; - d5[3] = 0x80; - } - else - { - quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); - save_relocs (id5); - } - - bfd_set_section_size (abfd, id4, 4); - d4 = (unsigned char *) xmalloc (4); - id4->contents = d4; - memset (d4, 0, 4); - if (exp->flag_noname) - { - d5[0] = exp->ordinal; - d5[1] = exp->ordinal >> 8; - d5[3] = 0x80; - } - else - { - quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); - save_relocs (id4); - } - - if (exp->flag_noname) - { - len = 0; - bfd_set_section_size (abfd, id6, 0); - } - else - { - len = strlen (exp->name) + 3; - if (len & 1) - len++; - bfd_set_section_size (abfd, id6, len); - d6 = (unsigned char *) xmalloc (len); - id6->contents = d6; - memset (d6, 0, len); - d6[0] = exp->hint & 0xff; - d6[1] = exp->hint >> 8; - strcpy (d6+2, exp->name); - } - - bfd_set_symtab (abfd, symtab, symptr); - - bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); - bfd_set_section_contents (abfd, id7, d7, 0, 4); - bfd_set_section_contents (abfd, id5, d5, 0, 4); - bfd_set_section_contents (abfd, id4, d4, 0, 4); - if (!exp->flag_noname) - bfd_set_section_contents (abfd, id6, d6, 0, len); - - bfd_make_readable (abfd); - return abfd; -} - -void -pe_dll_generate_implib (def, impfilename) - def_file *def; - const char *impfilename; -{ - int i; - bfd *ar_head; - bfd *ar_tail; - bfd *outarch; - bfd *head = 0; - - dll_filename = (def->name) ? def->name : dll_name; - dll_symname = xstrdup (dll_filename); - for (i=0; dll_symname[i]; i++) - if (!isalnum ((unsigned char) dll_symname[i])) - dll_symname[i] = '_'; - - unlink (impfilename); - - outarch = bfd_openw (impfilename, 0); - - if (!outarch) - { - /* xgettext:c-format */ - einfo (_("%XCan't open .lib file: %s\n"), impfilename); - return; - } - - /* xgettext:c-format */ - einfo (_("Creating library file: %s\n"), impfilename); - - bfd_set_format (outarch, bfd_archive); - outarch->has_armap = 1; - - /* Work out a reasonable size of things to put onto one line. */ - - ar_head = make_head (outarch); - - for (i = 0; i<def->num_exports; i++) - { - /* The import library doesn't know about the internal name */ - char *internal = def->exports[i].internal_name; - bfd *n; - def->exports[i].internal_name = def->exports[i].name; - n = make_one (def->exports+i, outarch); - n->next = head; - head = n; - def->exports[i].internal_name = internal; - } - - ar_tail = make_tail (outarch); - - if (ar_head == NULL || ar_tail == NULL) - return; - - /* Now stick them all into the archive */ - - ar_head->next = head; - ar_tail->next = ar_head; - head = ar_tail; - - if (! bfd_set_archive_head (outarch, head)) - einfo ("%Xbfd_set_archive_head: %s\n", bfd_errmsg (bfd_get_error ())); - - if (! bfd_close (outarch)) - einfo ("%Xbfd_close %s: %s\n", impfilename, bfd_errmsg (bfd_get_error ())); - - while (head != NULL) - { - bfd *n = head->next; - bfd_close (head); - head = n; - } -} - -static void -add_bfd_to_link (abfd, name, link_info) - bfd *abfd; - char *name; - struct bfd_link_info *link_info; -{ - lang_input_statement_type *fake_file; - fake_file = lang_add_input_file (name, - lang_input_file_is_fake_enum, - NULL); - fake_file->the_bfd = abfd; - ldlang_add_file (fake_file); - if (!bfd_link_add_symbols (abfd, link_info)) - einfo ("%Xaddsym %s: %s\n", name, bfd_errmsg (bfd_get_error ())); -} - -void -pe_process_import_defs (output_bfd, link_info) - bfd *output_bfd; - struct bfd_link_info *link_info; -{ - def_file_module *module; - pe_dll_id_target(bfd_get_target (output_bfd)); - - if (!pe_def_file) - return; - - for (module = pe_def_file->modules; module; module = module->next) - { - int i, do_this_dll; - - dll_filename = module->name; - dll_symname = xstrdup (module->name); - for (i=0; dll_symname[i]; i++) - if (!isalnum (dll_symname[i])) - dll_symname[i] = '_'; - - do_this_dll = 0; - - for (i=0; i<pe_def_file->num_imports; i++) - if (pe_def_file->imports[i].module == module) - { - def_file_export exp; - struct bfd_link_hash_entry *blhe; - - /* see if we need this import */ - char *name = (char *) xmalloc (strlen (pe_def_file->imports[i].internal_name) + 2); - sprintf (name, "%s%s", U(""), pe_def_file->imports[i].internal_name); - blhe = bfd_link_hash_lookup (link_info->hash, name, - false, false, false); - free (name); - if (blhe && blhe->type == bfd_link_hash_undefined) - { - bfd *one; - /* we do */ - if (!do_this_dll) - { - bfd *ar_head = make_head (output_bfd); - add_bfd_to_link (ar_head, ar_head->filename, link_info); - do_this_dll = 1; - } - exp.internal_name = pe_def_file->imports[i].internal_name; - exp.name = pe_def_file->imports[i].name; - exp.ordinal = pe_def_file->imports[i].ordinal; - exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; - exp.flag_private = 0; - exp.flag_constant = 0; - exp.flag_data = 0; - exp.flag_noname = exp.name ? 0 : 1; - one = make_one (&exp, output_bfd); - add_bfd_to_link (one, one->filename, link_info); - } - } - if (do_this_dll) - { - bfd *ar_tail = make_tail (output_bfd); - add_bfd_to_link (ar_tail, ar_tail->filename, link_info); - } - - free (dll_symname); - } -} - -/************************************************************************ - - We were handed a *.DLL file. Parse it and turn it into a set of - IMPORTS directives in the def file. Return true if the file was - handled, false if not. - - ************************************************************************/ - -static unsigned int -pe_get16 (abfd, where) - bfd *abfd; - int where; -{ - unsigned char b[2]; - bfd_seek (abfd, where, SEEK_SET); - bfd_read (b, 1, 2, abfd); - return b[0] + (b[1]<<8); -} - -static unsigned int -pe_get32 (abfd, where) - bfd *abfd; - int where; -{ - unsigned char b[4]; - bfd_seek (abfd, where, SEEK_SET); - bfd_read (b, 1, 4, abfd); - return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); -} - -#if 0 /* This is not currently used. */ - -static unsigned int -pe_as16 (ptr) - void *ptr; -{ - unsigned char *b = ptr; - return b[0] + (b[1]<<8); -} - -#endif - -static unsigned int -pe_as32 (ptr) - void *ptr; -{ - unsigned char *b = ptr; - return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); -} - -boolean -pe_implied_import_dll (filename) - const char *filename; -{ - bfd *dll; - unsigned long pe_header_offset, opthdr_ofs, num_entries, i; - unsigned long export_rva, export_size, nsections, secptr, expptr; - unsigned char *expdata, *erva; - unsigned long name_rvas, ordinals, nexp, ordbase; - const char *dll_name; - - /* No, I can't use bfd here. kernel32.dll puts its export table in - the middle of the .rdata section. */ - - dll = bfd_openr (filename, pe_details->target_name); - if (!dll) - { - einfo ("%Xopen %s: %s\n", filename, bfd_errmsg (bfd_get_error ())); - return false; - } - /* PEI dlls seem to be bfd_objects */ - if (!bfd_check_format (dll, bfd_object)) - { - einfo ("%X%s: this doesn't appear to be a DLL\n", filename); - return false; - } - - dll_name = filename; - for (i=0; filename[i]; i++) - if (filename[i] == '/' || filename[i] == '\\' || filename[i] == ':') - dll_name = filename + i + 1; - - pe_header_offset = pe_get32 (dll, 0x3c); - opthdr_ofs = pe_header_offset + 4 + 20; - num_entries = pe_get32 (dll, opthdr_ofs + 92); - if (num_entries < 1) /* no exports */ - return false; - export_rva = pe_get32 (dll, opthdr_ofs + 96); - export_size = pe_get32 (dll, opthdr_ofs + 100); - nsections = pe_get16 (dll, pe_header_offset + 4 + 2); - secptr = (pe_header_offset + 4 + 20 + - pe_get16 (dll, pe_header_offset + 4 + 16)); - expptr = 0; - for (i=0; i<nsections; i++) - { - char sname[8]; - unsigned long secptr1 = secptr + 40 * i; - unsigned long vaddr = pe_get32 (dll, secptr1 + 12); - unsigned long vsize = pe_get32 (dll, secptr1 + 16); - unsigned long fptr = pe_get32 (dll, secptr1 + 20); - bfd_seek(dll, secptr1, SEEK_SET); - bfd_read(sname, 1, 8, dll); - if (vaddr <= export_rva && vaddr+vsize > export_rva) - { - expptr = fptr + (export_rva - vaddr); - if (export_rva + export_size > vaddr + vsize) - export_size = vsize - (export_rva - vaddr); - break; - } - } - - expdata = (unsigned char *) xmalloc (export_size); - bfd_seek (dll, expptr, SEEK_SET); - bfd_read (expdata, 1, export_size, dll); - erva = expdata - export_rva; - - if (pe_def_file == 0) - pe_def_file = def_file_empty(); - - nexp = pe_as32 (expdata+24); - name_rvas = pe_as32 (expdata+32); - ordinals = pe_as32 (expdata+36); - ordbase = pe_as32 (expdata+16); - for (i=0; i<nexp; i++) - { - unsigned long name_rva = pe_as32 (erva+name_rvas+i*4); - def_file_import *imp; - imp = def_file_add_import (pe_def_file, erva+name_rva, dll_name, - i, 0); - } - - return true; -} - -/************************************************************************ - - These are the main functions, called from the emulation. The first - is called after the bfds are read, so we can guess at how much space - we need. The second is called after everything is placed, so we - can put the right values in place. - - ************************************************************************/ - -void -pe_dll_build_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - pe_dll_id_target (bfd_get_target (abfd)); - process_def_file (abfd, info); - - generate_edata (abfd, info); - build_filler_bfd (1); -} - -void -pe_exe_build_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info ATTRIBUTE_UNUSED; -{ - pe_dll_id_target (bfd_get_target (abfd)); - build_filler_bfd (0); -} - -void -pe_dll_fill_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - pe_dll_id_target (bfd_get_target (abfd)); - image_base = pe_data (abfd)->pe_opthdr.ImageBase; - - generate_reloc (abfd, info); - if (reloc_sz > 0) - { - bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); - - /* Resize the sections. */ - lang_size_sections (stat_ptr->head, abs_output_section, - &stat_ptr->head, 0, (bfd_vma) 0, false); - - /* Redo special stuff. */ - ldemul_after_allocation (); - - /* Do the assignments again. */ - lang_do_assignments (stat_ptr->head, - abs_output_section, - (fill_type) 0, (bfd_vma) 0); - } - - fill_edata (abfd, info); - - pe_data (abfd)->dll = 1; - - edata_s->contents = edata_d; - reloc_s->contents = reloc_d; -} - -void -pe_exe_fill_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - pe_dll_id_target (bfd_get_target (abfd)); - image_base = pe_data (abfd)->pe_opthdr.ImageBase; - - generate_reloc (abfd, info); - if (reloc_sz > 0) - { - bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); - - /* Resize the sections. */ - lang_size_sections (stat_ptr->head, abs_output_section, - &stat_ptr->head, 0, (bfd_vma) 0, false); - - /* Redo special stuff. */ - ldemul_after_allocation (); - - /* Do the assignments again. */ - lang_do_assignments (stat_ptr->head, - abs_output_section, - (fill_type) 0, (bfd_vma) 0); - } - reloc_s->contents = reloc_d; -} |