782 lines
21 KiB
C
782 lines
21 KiB
C
/* rescoff.c -- read and write resources in Windows COFF files.
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Copyright 1997, 1998 Free Software Foundation, Inc.
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Written by Ian Lance Taylor, Cygnus Support.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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/* This file contains function that read and write Windows resources
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in COFF files. */
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#include "bfd.h"
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#include "bucomm.h"
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#include "libiberty.h"
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#include "windres.h"
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#include <assert.h>
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/* In order to use the address of a resource data entry, we need to
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get the image base of the file. Right now we extract it from
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internal BFD information. FIXME. */
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#include "coff/internal.h"
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#include "libcoff.h"
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/* Information we extract from the file. */
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struct coff_file_info
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{
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/* File name. */
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const char *filename;
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/* Data read from the file. */
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const bfd_byte *data;
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/* End of data read from file. */
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const bfd_byte *data_end;
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/* Address of the resource section minus the image base of the file. */
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bfd_vma secaddr;
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/* Non-zero if the file is big endian. */
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int big_endian;
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};
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/* A resource directory table in a COFF file. */
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struct extern_res_directory
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{
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/* Characteristics. */
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bfd_byte characteristics[4];
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/* Time stamp. */
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bfd_byte time[4];
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/* Major version number. */
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bfd_byte major[2];
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/* Minor version number. */
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bfd_byte minor[2];
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/* Number of named directory entries. */
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bfd_byte name_count[2];
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/* Number of directory entries with IDs. */
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bfd_byte id_count[2];
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};
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/* A resource directory entry in a COFF file. */
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struct extern_res_entry
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{
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/* Name or ID. */
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bfd_byte name[4];
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/* Address of resource entry or subdirectory. */
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bfd_byte rva[4];
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};
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/* A resource data entry in a COFF file. */
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struct extern_res_data
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{
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/* Address of resource data. This is apparently a file relative
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address, rather than a section offset. */
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bfd_byte rva[4];
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/* Size of resource data. */
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bfd_byte size[4];
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/* Code page. */
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bfd_byte codepage[4];
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/* Reserved. */
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bfd_byte reserved[4];
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};
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/* Macros to swap in values. */
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#define getfi_16(fi, s) ((fi)->big_endian ? bfd_getb16 (s) : bfd_getl16 (s))
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#define getfi_32(fi, s) ((fi)->big_endian ? bfd_getb32 (s) : bfd_getl32 (s))
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/* Local functions. */
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static void overrun PARAMS ((const struct coff_file_info *, const char *));
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static struct res_directory *read_coff_res_dir
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PARAMS ((const bfd_byte *, const struct coff_file_info *,
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const struct res_id *, int));
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static struct res_resource *read_coff_data_entry
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PARAMS ((const bfd_byte *, const struct coff_file_info *,
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const struct res_id *));
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/* Read the resources in a COFF file. */
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struct res_directory *
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read_coff_rsrc (filename, target)
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const char *filename;
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const char *target;
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{
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bfd *abfd;
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char **matching;
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asection *sec;
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bfd_size_type size;
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bfd_byte *data;
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struct coff_file_info finfo;
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if (filename == NULL)
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fatal (_("filename required for COFF input"));
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abfd = bfd_openr (filename, target);
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if (abfd == NULL)
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bfd_fatal (filename);
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if (! bfd_check_format_matches (abfd, bfd_object, &matching))
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{
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bfd_nonfatal (bfd_get_filename (abfd));
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if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
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list_matching_formats (matching);
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xexit (1);
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}
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sec = bfd_get_section_by_name (abfd, ".rsrc");
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if (sec == NULL)
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{
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fprintf (stderr, _("%s: %s: no resource section\n"), program_name,
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filename);
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xexit (1);
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}
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size = bfd_section_size (abfd, sec);
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data = (bfd_byte *) res_alloc (size);
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if (! bfd_get_section_contents (abfd, sec, data, 0, size))
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bfd_fatal (_("can't read resource section"));
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finfo.filename = filename;
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finfo.data = data;
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finfo.data_end = data + size;
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finfo.secaddr = (bfd_get_section_vma (abfd, sec)
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- pe_data (abfd)->pe_opthdr.ImageBase);
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finfo.big_endian = bfd_big_endian (abfd);
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bfd_close (abfd);
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/* Now just read in the top level resource directory. Note that we
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don't free data, since we create resource entries that point into
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it. If we ever want to free up the resource information we read,
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this will have to be cleaned up. */
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return read_coff_res_dir (data, &finfo, (const struct res_id *) NULL, 0);
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}
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/* Give an error if we are out of bounds. */
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static void
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overrun (finfo, msg)
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const struct coff_file_info *finfo;
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const char *msg;
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{
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fatal (_("%s: %s: address out of bounds"), finfo->filename, msg);
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}
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/* Read a resource directory. */
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static struct res_directory *
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read_coff_res_dir (data, finfo, type, level)
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const bfd_byte *data;
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const struct coff_file_info *finfo;
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const struct res_id *type;
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int level;
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{
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const struct extern_res_directory *erd;
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struct res_directory *rd;
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int name_count, id_count, i;
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struct res_entry **pp;
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const struct extern_res_entry *ere;
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if ((size_t) (finfo->data_end - data) < sizeof (struct extern_res_directory))
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overrun (finfo, _("directory"));
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erd = (const struct extern_res_directory *) data;
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rd = (struct res_directory *) res_alloc (sizeof *rd);
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rd->characteristics = getfi_32 (finfo, erd->characteristics);
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rd->time = getfi_32 (finfo, erd->time);
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rd->major = getfi_16 (finfo, erd->major);
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rd->minor = getfi_16 (finfo, erd->minor);
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rd->entries = NULL;
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name_count = getfi_16 (finfo, erd->name_count);
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id_count = getfi_16 (finfo, erd->id_count);
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pp = &rd->entries;
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/* The resource directory entries immediately follow the directory
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table. */
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ere = (const struct extern_res_entry *) (erd + 1);
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for (i = 0; i < name_count; i++, ere++)
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{
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unsigned long name, rva;
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struct res_entry *re;
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const bfd_byte *ers;
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int length, j;
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if ((const bfd_byte *) ere >= finfo->data_end)
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overrun (finfo, _("named directory entry"));
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name = getfi_32 (finfo, ere->name);
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rva = getfi_32 (finfo, ere->rva);
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/* For some reason the high bit in NAME is set. */
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name &=~ 0x80000000;
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if (name > (size_t) (finfo->data_end - finfo->data))
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overrun (finfo, _("directory entry name"));
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ers = finfo->data + name;
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re = (struct res_entry *) res_alloc (sizeof *re);
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re->next = NULL;
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re->id.named = 1;
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length = getfi_16 (finfo, ers);
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re->id.u.n.length = length;
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re->id.u.n.name = (unichar *) res_alloc (length * sizeof (unichar));
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for (j = 0; j < length; j++)
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re->id.u.n.name[j] = getfi_16 (finfo, ers + j * 2 + 2);
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if (level == 0)
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type = &re->id;
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if ((rva & 0x80000000) != 0)
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{
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rva &=~ 0x80000000;
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if (rva >= (size_t) (finfo->data_end - finfo->data))
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overrun (finfo, _("named subdirectory"));
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re->subdir = 1;
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re->u.dir = read_coff_res_dir (finfo->data + rva, finfo, type,
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level + 1);
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}
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else
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{
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if (rva >= (size_t) (finfo->data_end - finfo->data))
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overrun (finfo, _("named resource"));
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re->subdir = 0;
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re->u.res = read_coff_data_entry (finfo->data + rva, finfo, type);
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}
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*pp = re;
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pp = &re->next;
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}
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for (i = 0; i < id_count; i++, ere++)
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{
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unsigned long name, rva;
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struct res_entry *re;
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if ((const bfd_byte *) ere >= finfo->data_end)
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overrun (finfo, _("ID directory entry"));
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name = getfi_32 (finfo, ere->name);
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rva = getfi_32 (finfo, ere->rva);
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re = (struct res_entry *) res_alloc (sizeof *re);
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re->next = NULL;
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re->id.named = 0;
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re->id.u.id = name;
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if (level == 0)
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type = &re->id;
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if ((rva & 0x80000000) != 0)
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{
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rva &=~ 0x80000000;
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if (rva >= (size_t) (finfo->data_end - finfo->data))
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overrun (finfo, _("ID subdirectory"));
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re->subdir = 1;
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re->u.dir = read_coff_res_dir (finfo->data + rva, finfo, type,
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level + 1);
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}
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else
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{
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if (rva >= (size_t) (finfo->data_end - finfo->data))
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overrun (finfo, _("ID resource"));
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re->subdir = 0;
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re->u.res = read_coff_data_entry (finfo->data + rva, finfo, type);
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}
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*pp = re;
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pp = &re->next;
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}
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return rd;
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}
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/* Read a resource data entry. */
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static struct res_resource *
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read_coff_data_entry (data, finfo, type)
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const bfd_byte *data;
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const struct coff_file_info *finfo;
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const struct res_id *type;
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{
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const struct extern_res_data *erd;
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struct res_resource *r;
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unsigned long size, rva;
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const bfd_byte *resdata;
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if (type == NULL)
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fatal (_("resource type unknown"));
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if ((size_t) (finfo->data_end - data) < sizeof (struct extern_res_data))
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overrun (finfo, _("data entry"));
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erd = (const struct extern_res_data *) data;
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size = getfi_32 (finfo, erd->size);
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rva = getfi_32 (finfo, erd->rva);
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if (rva < finfo->secaddr
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|| rva - finfo->secaddr >= (size_t) (finfo->data_end - finfo->data))
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overrun (finfo, _("resource data"));
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resdata = finfo->data + (rva - finfo->secaddr);
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if (size > (size_t) (finfo->data_end - resdata))
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overrun (finfo, _("resource data size"));
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r = bin_to_res (*type, resdata, size, finfo->big_endian);
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memset (&r->res_info, 0, sizeof (struct res_res_info));
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r->coff_info.codepage = getfi_32 (finfo, erd->codepage);
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r->coff_info.reserved = getfi_32 (finfo, erd->reserved);
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return r;
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}
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/* This structure is used to build a list of bindata structures. */
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struct bindata_build
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{
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/* The data. */
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struct bindata *d;
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/* The last structure we have added to the list. */
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struct bindata *last;
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/* The size of the list as a whole. */
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unsigned long length;
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};
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/* This structure keeps track of information as we build the directory
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tree. */
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struct coff_write_info
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{
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/* These fields are based on the BFD. */
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/* The BFD itself. */
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bfd *abfd;
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/* Non-zero if the file is big endian. */
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int big_endian;
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/* Pointer to section symbol used to build RVA relocs. */
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asymbol **sympp;
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/* These fields are computed initially, and then not changed. */
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/* Length of directory tables and entries. */
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unsigned long dirsize;
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/* Length of directory entry strings. */
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unsigned long dirstrsize;
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/* Length of resource data entries. */
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unsigned long dataentsize;
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/* These fields are updated as we add data. */
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/* Directory tables and entries. */
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struct bindata_build dirs;
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/* Directory entry strings. */
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struct bindata_build dirstrs;
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/* Resource data entries. */
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struct bindata_build dataents;
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/* Actual resource data. */
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struct bindata_build resources;
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/* Relocations. */
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arelent **relocs;
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/* Number of relocations. */
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unsigned int reloc_count;
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};
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/* Macros to swap out values. */
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#define putcwi_16(cwi, v, s) \
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((cwi->big_endian) ? bfd_putb16 ((v), (s)) : bfd_putl16 ((v), (s)))
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#define putcwi_32(cwi, v, s) \
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((cwi->big_endian) ? bfd_putb32 ((v), (s)) : bfd_putl32 ((v), (s)))
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static void coff_bin_sizes
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PARAMS ((const struct res_directory *, struct coff_write_info *));
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static unsigned char *coff_alloc PARAMS ((struct bindata_build *, size_t));
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static void coff_to_bin
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PARAMS ((const struct res_directory *, struct coff_write_info *));
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static void coff_res_to_bin
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PARAMS ((const struct res_resource *, struct coff_write_info *));
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/* Write resources to a COFF file. RESOURCES should already be
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sorted.
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Right now we always create a new file. Someday we should also
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offer the ability to merge resources into an existing file. This
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would require doing the basic work of objcopy, just modifying or
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adding the .rsrc section. */
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void
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write_coff_file (filename, target, resources)
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const char *filename;
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const char *target;
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const struct res_directory *resources;
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{
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bfd *abfd;
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asection *sec;
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struct coff_write_info cwi;
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struct bindata *d;
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unsigned long length, offset;
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if (filename == NULL)
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fatal (_("filename required for COFF output"));
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abfd = bfd_openw (filename, target);
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if (abfd == NULL)
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bfd_fatal (filename);
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if (! bfd_set_format (abfd, bfd_object))
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bfd_fatal ("bfd_set_format");
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#ifdef DLLTOOL_ARM
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if (! bfd_set_arch_mach (abfd, bfd_arch_arm, 0))
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bfd_fatal ("bfd_set_arch_mach(arm)");
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#else
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/* FIXME: This is obviously i386 specific. */
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if (! bfd_set_arch_mach (abfd, bfd_arch_i386, 0))
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bfd_fatal ("bfd_set_arch_mach(i386)");
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#endif /* arm */
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if (! bfd_set_file_flags (abfd, HAS_SYMS | HAS_RELOC))
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bfd_fatal ("bfd_set_file_flags");
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sec = bfd_make_section (abfd, ".rsrc");
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if (sec == NULL)
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bfd_fatal ("bfd_make_section");
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if (! bfd_set_section_flags (abfd, sec,
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(SEC_HAS_CONTENTS | SEC_ALLOC
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| SEC_LOAD | SEC_DATA)))
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bfd_fatal ("bfd_set_section_flags");
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if (! bfd_set_symtab (abfd, sec->symbol_ptr_ptr, 1))
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bfd_fatal ("bfd_set_symtab");
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/* Requiring this is probably a bug in BFD. */
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sec->output_section = sec;
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/* The order of data in the .rsrc section is
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resource directory tables and entries
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resource directory strings
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resource data entries
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actual resource data
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We build these different types of data in different lists. */
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cwi.abfd = abfd;
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cwi.big_endian = bfd_big_endian (abfd);
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cwi.sympp = sec->symbol_ptr_ptr;
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cwi.dirsize = 0;
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cwi.dirstrsize = 0;
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cwi.dataentsize = 0;
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cwi.dirs.d = NULL;
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cwi.dirs.last = NULL;
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cwi.dirs.length = 0;
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cwi.dirstrs.d = NULL;
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cwi.dirstrs.last = NULL;
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cwi.dirstrs.length = 0;
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cwi.dataents.d = NULL;
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cwi.dataents.last = NULL;
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cwi.dataents.length = 0;
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cwi.resources.d = NULL;
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cwi.resources.last = NULL;
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cwi.resources.length = 0;
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cwi.relocs = NULL;
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cwi.reloc_count = 0;
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/* Work out the sizes of the resource directory entries, so that we
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know the various offsets we will need. */
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coff_bin_sizes (resources, &cwi);
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/* Force the directory strings to be 32 bit aligned. Every other
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structure is 32 bit aligned anyhow. */
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cwi.dirstrsize = (cwi.dirstrsize + 3) &~ 3;
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||
/* Actually convert the resources to binary. */
|
||
coff_to_bin (resources, &cwi);
|
||
|
||
/* Add another 2 bytes to the directory strings if needed for
|
||
alignment. */
|
||
if ((cwi.dirstrs.length & 3) != 0)
|
||
{
|
||
unsigned char *ex;
|
||
|
||
ex = coff_alloc (&cwi.dirstrs, 2);
|
||
ex[0] = 0;
|
||
ex[1] = 0;
|
||
}
|
||
|
||
/* Make sure that the data we built came out to the same size as we
|
||
calculated initially. */
|
||
assert (cwi.dirs.length == cwi.dirsize);
|
||
assert (cwi.dirstrs.length == cwi.dirstrsize);
|
||
assert (cwi.dataents.length == cwi.dataentsize);
|
||
|
||
length = (cwi.dirsize
|
||
+ cwi.dirstrsize
|
||
+ cwi.dataentsize
|
||
+ cwi.resources.length);
|
||
|
||
if (! bfd_set_section_size (abfd, sec, length))
|
||
bfd_fatal ("bfd_set_section_size");
|
||
|
||
bfd_set_reloc (abfd, sec, cwi.relocs, cwi.reloc_count);
|
||
|
||
offset = 0;
|
||
for (d = cwi.dirs.d; d != NULL; d = d->next)
|
||
{
|
||
if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length))
|
||
bfd_fatal ("bfd_set_section_contents");
|
||
offset += d->length;
|
||
}
|
||
for (d = cwi.dirstrs.d; d != NULL; d = d->next)
|
||
{
|
||
if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length))
|
||
bfd_fatal ("bfd_set_section_contents");
|
||
offset += d->length;
|
||
}
|
||
for (d = cwi.dataents.d; d != NULL; d = d->next)
|
||
{
|
||
if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length))
|
||
bfd_fatal ("bfd_set_section_contents");
|
||
offset += d->length;
|
||
}
|
||
for (d = cwi.resources.d; d != NULL; d = d->next)
|
||
{
|
||
if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length))
|
||
bfd_fatal ("bfd_set_section_contents");
|
||
offset += d->length;
|
||
}
|
||
|
||
assert (offset == length);
|
||
|
||
if (! bfd_close (abfd))
|
||
bfd_fatal ("bfd_close");
|
||
|
||
/* We allocated the relocs array using malloc. */
|
||
free (cwi.relocs);
|
||
}
|
||
|
||
/* Work out the sizes of the various fixed size resource directory
|
||
entries. This updates fields in CWI. */
|
||
|
||
static void
|
||
coff_bin_sizes (resdir, cwi)
|
||
const struct res_directory *resdir;
|
||
struct coff_write_info *cwi;
|
||
{
|
||
const struct res_entry *re;
|
||
|
||
cwi->dirsize += sizeof (struct extern_res_directory);
|
||
|
||
for (re = resdir->entries; re != NULL; re = re->next)
|
||
{
|
||
cwi->dirsize += sizeof (struct extern_res_entry);
|
||
|
||
if (re->id.named)
|
||
cwi->dirstrsize += re->id.u.n.length * 2 + 2;
|
||
|
||
if (re->subdir)
|
||
coff_bin_sizes (re->u.dir, cwi);
|
||
else
|
||
cwi->dataentsize += sizeof (struct extern_res_data);
|
||
}
|
||
}
|
||
|
||
/* Allocate data for a particular list. */
|
||
|
||
static unsigned char *
|
||
coff_alloc (bb, size)
|
||
struct bindata_build *bb;
|
||
size_t size;
|
||
{
|
||
struct bindata *d;
|
||
|
||
d = (struct bindata *) reswr_alloc (sizeof *d);
|
||
|
||
d->next = NULL;
|
||
d->data = (unsigned char *) reswr_alloc (size);
|
||
d->length = size;
|
||
|
||
if (bb->d == NULL)
|
||
bb->d = d;
|
||
else
|
||
bb->last->next = d;
|
||
bb->last = d;
|
||
bb->length += size;
|
||
|
||
return d->data;
|
||
}
|
||
|
||
/* Convert the resource directory RESDIR to binary. */
|
||
|
||
static void
|
||
coff_to_bin (resdir, cwi)
|
||
const struct res_directory *resdir;
|
||
struct coff_write_info *cwi;
|
||
{
|
||
struct extern_res_directory *erd;
|
||
int ci, cn;
|
||
const struct res_entry *e;
|
||
struct extern_res_entry *ere;
|
||
|
||
/* Write out the directory table. */
|
||
|
||
erd = ((struct extern_res_directory *)
|
||
coff_alloc (&cwi->dirs, sizeof (*erd)));
|
||
|
||
putcwi_32 (cwi, resdir->characteristics, erd->characteristics);
|
||
putcwi_32 (cwi, resdir->time, erd->time);
|
||
putcwi_16 (cwi, resdir->major, erd->major);
|
||
putcwi_16 (cwi, resdir->minor, erd->minor);
|
||
|
||
ci = 0;
|
||
cn = 0;
|
||
for (e = resdir->entries; e != NULL; e = e->next)
|
||
{
|
||
if (e->id.named)
|
||
++cn;
|
||
else
|
||
++ci;
|
||
}
|
||
|
||
putcwi_16 (cwi, cn, erd->name_count);
|
||
putcwi_16 (cwi, ci, erd->id_count);
|
||
|
||
/* Write out the data entries. Note that we allocate space for all
|
||
the entries before writing them out. That permits a recursive
|
||
call to work correctly when writing out subdirectories. */
|
||
|
||
ere = ((struct extern_res_entry *)
|
||
coff_alloc (&cwi->dirs, (ci + cn) * sizeof (*ere)));
|
||
for (e = resdir->entries; e != NULL; e = e->next, ere++)
|
||
{
|
||
if (! e->id.named)
|
||
putcwi_32 (cwi, e->id.u.id, ere->name);
|
||
else
|
||
{
|
||
unsigned char *str;
|
||
int i;
|
||
|
||
/* For some reason existing files seem to have the high bit
|
||
set on the address of the name, although that is not
|
||
documented. */
|
||
putcwi_32 (cwi,
|
||
0x80000000 | (cwi->dirsize + cwi->dirstrs.length),
|
||
ere->name);
|
||
|
||
str = coff_alloc (&cwi->dirstrs, e->id.u.n.length * 2 + 2);
|
||
putcwi_16 (cwi, e->id.u.n.length, str);
|
||
for (i = 0; i < e->id.u.n.length; i++)
|
||
putcwi_16 (cwi, e->id.u.n.name[i], str + i * 2 + 2);
|
||
}
|
||
|
||
if (e->subdir)
|
||
{
|
||
putcwi_32 (cwi, 0x80000000 | cwi->dirs.length, ere->rva);
|
||
coff_to_bin (e->u.dir, cwi);
|
||
}
|
||
else
|
||
{
|
||
putcwi_32 (cwi,
|
||
cwi->dirsize + cwi->dirstrsize + cwi->dataents.length,
|
||
ere->rva);
|
||
|
||
coff_res_to_bin (e->u.res, cwi);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Convert the resource RES to binary. */
|
||
|
||
static void
|
||
coff_res_to_bin (res, cwi)
|
||
const struct res_resource *res;
|
||
struct coff_write_info *cwi;
|
||
{
|
||
arelent *r;
|
||
struct extern_res_data *erd;
|
||
struct bindata *d;
|
||
unsigned long length;
|
||
|
||
/* For some reason, although every other address is a section
|
||
offset, the address of the resource data itself is an RVA. That
|
||
means that we need to generate a relocation for it. We allocate
|
||
the relocs array using malloc so that we can use realloc. FIXME:
|
||
This relocation handling is correct for the i386, but probably
|
||
not for any other target. */
|
||
|
||
r = (arelent *) reswr_alloc (sizeof (arelent));
|
||
r->sym_ptr_ptr = cwi->sympp;
|
||
r->address = cwi->dirsize + cwi->dirstrsize + cwi->dataents.length;
|
||
r->addend = 0;
|
||
r->howto = bfd_reloc_type_lookup (cwi->abfd, BFD_RELOC_RVA);
|
||
if (r->howto == NULL)
|
||
bfd_fatal (_("can't get BFD_RELOC_RVA relocation type"));
|
||
|
||
cwi->relocs = xrealloc (cwi->relocs,
|
||
(cwi->reloc_count + 2) * sizeof (arelent *));
|
||
cwi->relocs[cwi->reloc_count] = r;
|
||
cwi->relocs[cwi->reloc_count + 1] = NULL;
|
||
++cwi->reloc_count;
|
||
|
||
erd = (struct extern_res_data *) coff_alloc (&cwi->dataents, sizeof (*erd));
|
||
|
||
putcwi_32 (cwi,
|
||
(cwi->dirsize
|
||
+ cwi->dirstrsize
|
||
+ cwi->dataentsize
|
||
+ cwi->resources.length),
|
||
erd->rva);
|
||
putcwi_32 (cwi, res->coff_info.codepage, erd->codepage);
|
||
putcwi_32 (cwi, res->coff_info.reserved, erd->reserved);
|
||
|
||
d = res_to_bin (res, cwi->big_endian);
|
||
|
||
if (cwi->resources.d == NULL)
|
||
cwi->resources.d = d;
|
||
else
|
||
cwi->resources.last->next = d;
|
||
|
||
length = 0;
|
||
for (; d->next != NULL; d = d->next)
|
||
length += d->length;
|
||
length += d->length;
|
||
cwi->resources.last = d;
|
||
cwi->resources.length += length;
|
||
|
||
putcwi_32 (cwi, length, erd->size);
|
||
|
||
/* Force the next resource to have 32 bit alignment. */
|
||
|
||
if ((length & 3) != 0)
|
||
{
|
||
int add;
|
||
unsigned char *ex;
|
||
|
||
add = 4 - (length & 3);
|
||
|
||
ex = coff_alloc (&cwi->resources, add);
|
||
memset (ex, 0, add);
|
||
}
|
||
}
|