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/* PEF support for BFD.
Copyright 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <ctype.h>
#include "pef.h"
#include "pef-traceback.h"
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libiberty.h"
#ifndef BFD_IO_FUNCS
#define BFD_IO_FUNCS 0
#endif
#define bfd_pef_close_and_cleanup _bfd_generic_close_and_cleanup
#define bfd_pef_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define bfd_pef_new_section_hook _bfd_generic_new_section_hook
#define bfd_pef_bfd_is_local_label_name bfd_generic_is_local_label_name
#define bfd_pef_get_lineno _bfd_nosymbols_get_lineno
#define bfd_pef_find_nearest_line _bfd_nosymbols_find_nearest_line
#define bfd_pef_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define bfd_pef_read_minisymbols _bfd_generic_read_minisymbols
#define bfd_pef_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
#define bfd_pef_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound
#define bfd_pef_canonicalize_reloc _bfd_norelocs_canonicalize_reloc
#define bfd_pef_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
#define bfd_pef_set_arch_mach _bfd_generic_set_arch_mach
#define bfd_pef_get_section_contents _bfd_generic_get_section_contents
#define bfd_pef_set_section_contents _bfd_generic_set_section_contents
#define bfd_pef_bfd_get_relocated_section_contents \
bfd_generic_get_relocated_section_contents
#define bfd_pef_bfd_relax_section bfd_generic_relax_section
#define bfd_pef_bfd_gc_sections bfd_generic_gc_sections
#define bfd_pef_bfd_merge_sections bfd_generic_merge_sections
#define bfd_pef_bfd_discard_group bfd_generic_discard_group
#define bfd_pef_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define bfd_pef_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
#define bfd_pef_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define bfd_pef_bfd_link_just_syms _bfd_generic_link_just_syms
#define bfd_pef_bfd_final_link _bfd_generic_final_link
#define bfd_pef_bfd_link_split_section _bfd_generic_link_split_section
#define bfd_pef_get_section_contents_in_window \
_bfd_generic_get_section_contents_in_window
static void bfd_pef_print_symbol
PARAMS ((bfd *abfd, PTR afile, asymbol *symbol, bfd_print_symbol_type how));
static void bfd_pef_convert_architecture
PARAMS ((unsigned long architecture,
enum bfd_architecture *type, unsigned long *subtype));
static bfd_boolean bfd_pef_mkobject PARAMS ((bfd *abfd));
static int bfd_pef_parse_traceback_table
PARAMS ((bfd *abfd, asection *section, unsigned char *buf,
size_t len, size_t pos, asymbol *sym, FILE *file));
static const char *bfd_pef_section_name PARAMS ((bfd_pef_section *section));
static unsigned long bfd_pef_section_flags PARAMS ((bfd_pef_section *section));
static asection *bfd_pef_make_bfd_section
PARAMS ((bfd *abfd, bfd_pef_section *section));
static int bfd_pef_read_header PARAMS ((bfd *abfd, bfd_pef_header *header));
static const bfd_target *bfd_pef_object_p PARAMS ((bfd *));
static int bfd_pef_parse_traceback_tables
PARAMS ((bfd *abfd, asection *sec, unsigned char *buf,
size_t len, long *nsym, asymbol **csym));
static int bfd_pef_parse_function_stub
PARAMS ((bfd *abfd, unsigned char *buf, size_t len, unsigned long *offset));
static int bfd_pef_parse_function_stubs
PARAMS ((bfd *abfd, asection *codesec, unsigned char *codebuf, size_t codelen,
unsigned char *loaderbuf, size_t loaderlen, unsigned long *nsym,
asymbol **csym));
static long bfd_pef_parse_symbols PARAMS ((bfd *abfd, asymbol **csym));
static long bfd_pef_count_symbols PARAMS ((bfd *abfd));
static long bfd_pef_get_symtab_upper_bound PARAMS ((bfd *));
static long bfd_pef_get_symtab PARAMS ((bfd *, asymbol **));
static asymbol *bfd_pef_make_empty_symbol PARAMS ((bfd *));
static void bfd_pef_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
static int bfd_pef_sizeof_headers PARAMS ((bfd *, bfd_boolean));
static int bfd_pef_xlib_read_header
PARAMS ((bfd *abfd, bfd_pef_xlib_header *header));
static int bfd_pef_xlib_scan PARAMS ((bfd *abfd, bfd_pef_xlib_header *header));
static const bfd_target *bfd_pef_xlib_object_p PARAMS ((bfd *abfd));
static void
bfd_pef_print_symbol (abfd, afile, symbol, how)
bfd *abfd;
PTR afile;
asymbol *symbol;
bfd_print_symbol_type how;
{
FILE *file = (FILE *) afile;
switch (how)
{
case bfd_print_symbol_name:
fprintf (file, "%s", symbol->name);
break;
default:
bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
if (strncmp (symbol->name, "__traceback_", strlen ("__traceback_")) == 0)
{
char *buf = alloca (symbol->udata.i);
size_t offset = symbol->value + 4;
size_t len = symbol->udata.i;
int ret;
bfd_get_section_contents (abfd, symbol->section, buf, offset, len);
ret = bfd_pef_parse_traceback_table (abfd, symbol->section, buf,
len, 0, NULL, file);
if (ret < 0)
fprintf (file, " [ERROR]");
}
}
}
static void
bfd_pef_convert_architecture (architecture, type, subtype)
unsigned long architecture;
enum bfd_architecture *type;
unsigned long *subtype;
{
const unsigned long ARCH_POWERPC = 0x70777063; /* 'pwpc' */
const unsigned long ARCH_M68K = 0x6d36386b; /* 'm68k' */
*subtype = bfd_arch_unknown;
*type = bfd_arch_unknown;
if (architecture == ARCH_POWERPC)
*type = bfd_arch_powerpc;
else if (architecture == ARCH_M68K)
*type = bfd_arch_m68k;
}
static bfd_boolean
bfd_pef_mkobject (abfd)
bfd *abfd ATTRIBUTE_UNUSED;
{
return TRUE;
}
static int
bfd_pef_parse_traceback_table (abfd, section, buf, len, pos, sym, file)
bfd *abfd;
asection *section;
unsigned char *buf;
size_t len;
size_t pos;
asymbol *sym;
FILE *file;
{
struct traceback_table table;
size_t offset;
const char *s;
asymbol tmpsymbol;
if (sym == NULL)
sym = &tmpsymbol;
sym->name = NULL;
sym->value = 0;
sym->the_bfd = abfd;
sym->section = section;
sym->flags = 0;
sym->udata.i = 0;
/* memcpy is fine since all fields are unsigned char */
if ((pos + 8) > len)
return -1;
memcpy (&table, buf + pos, 8);
/* calling code relies on returned symbols having a name and
correct offset */
if ((table.lang != TB_C) && (table.lang != TB_CPLUSPLUS))
return -1;
if (! (table.flags2 & TB_NAME_PRESENT))
return -1;
if (! table.flags1 & TB_HAS_TBOFF)
return -1;
offset = 8;
if ((table.flags5 & TB_FLOATPARAMS) || (table.fixedparams))
offset += 4;
if (table.flags1 & TB_HAS_TBOFF)
{
struct traceback_table_tboff off;
if ((pos + offset + 4) > len)
return -1;
off.tb_offset = bfd_getb32 (buf + pos + offset);
offset += 4;
/* need to subtract 4 because the offset includes the 0x0L
preceding the table */
if (file != NULL)
fprintf (file, " [offset = 0x%lx]", off.tb_offset);
if ((file == NULL) && ((off.tb_offset + 4) > (pos + offset)))
return -1;
sym->value = pos - off.tb_offset - 4;
}
if (table.flags2 & TB_INT_HNDL)
offset += 4;
if (table.flags1 & TB_HAS_CTL)
{
struct traceback_table_anchors anchors;
if ((pos + offset + 4) > len)
return -1;
anchors.ctl_info = bfd_getb32 (buf + pos + offset);
offset += 4;
if (anchors.ctl_info > 1024)
return -1;
offset += anchors.ctl_info * 4;
}
if (table.flags2 & TB_NAME_PRESENT)
{
struct traceback_table_routine name;
char *namebuf;
if ((pos + offset + 2) > len)
return -1;
name.name_len = bfd_getb16 (buf + pos + offset);
offset += 2;
if (name.name_len > 4096)
return -1;
if ((pos + offset + name.name_len) > len)
return -1;
namebuf = (char *) bfd_alloc (abfd, name.name_len + 1);
if (namebuf == NULL)
return -1;
memcpy (namebuf, buf + pos + offset, name.name_len);
namebuf[name.name_len] = '\0';
/* strip leading period inserted by compiler */
if (namebuf[0] == '.')
memmove (namebuf, namebuf + 1, name.name_len + 1);
sym->name = namebuf;
for (s = sym->name; (*s != '\0'); s++)
if (! isprint (*s))
return -1;
offset += name.name_len;
}
if (table.flags2 & TB_USES_ALLOCA)
offset += 4;
if (table.flags4 & TB_HAS_VEC_INFO)
offset += 4;
if (file != NULL)
fprintf (file, " [length = 0x%lx]", (long) offset);
return offset;
}
static const char *bfd_pef_section_name (section)
bfd_pef_section *section;
{
switch (section->section_kind)
{
case BFD_PEF_SECTION_CODE: return "code";
case BFD_PEF_SECTION_UNPACKED_DATA: return "unpacked-data";
case BFD_PEF_SECTION_PACKED_DATA: return "packed-data";
case BFD_PEF_SECTION_CONSTANT: return "constant";
case BFD_PEF_SECTION_LOADER: return "loader";
case BFD_PEF_SECTION_DEBUG: return "debug";
case BFD_PEF_SECTION_EXEC_DATA: return "exec-data";
case BFD_PEF_SECTION_EXCEPTION: return "exception";
case BFD_PEF_SECTION_TRACEBACK: return "traceback";
default: return "unknown";
}
}
static unsigned long bfd_pef_section_flags (section)
bfd_pef_section *section;
{
switch (section->section_kind)
{
case BFD_PEF_SECTION_CODE:
return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
case BFD_PEF_SECTION_UNPACKED_DATA:
case BFD_PEF_SECTION_PACKED_DATA:
case BFD_PEF_SECTION_CONSTANT:
case BFD_PEF_SECTION_LOADER:
case BFD_PEF_SECTION_DEBUG:
case BFD_PEF_SECTION_EXEC_DATA:
case BFD_PEF_SECTION_EXCEPTION:
case BFD_PEF_SECTION_TRACEBACK:
default:
return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
}
}
static asection *
bfd_pef_make_bfd_section (abfd, section)
bfd *abfd;
bfd_pef_section *section;
{
asection *bfdsec;
const char *name = bfd_pef_section_name (section);
bfdsec = bfd_make_section_anyway (abfd, name);
if (bfdsec == NULL)
return NULL;
bfdsec->vma = section->default_address + section->container_offset;
bfdsec->lma = section->default_address + section->container_offset;
bfdsec->_raw_size = section->container_length;
bfdsec->filepos = section->container_offset;
bfdsec->alignment_power = section->alignment;
bfdsec->flags = bfd_pef_section_flags (section);
return bfdsec;
}
int bfd_pef_parse_loader_header (abfd, buf, len, header)
bfd *abfd ATTRIBUTE_UNUSED;
unsigned char *buf;
size_t len;
bfd_pef_loader_header *header;
{
BFD_ASSERT (len == 56);
header->main_section = bfd_getb32 (buf);
header->main_offset = bfd_getb32 (buf + 4);
header->init_section = bfd_getb32 (buf + 8);
header->init_offset = bfd_getb32 (buf + 12);
header->term_section = bfd_getb32 (buf + 16);
header->term_offset = bfd_getb32 (buf + 20);
header->imported_library_count = bfd_getb32 (buf + 24);
header->total_imported_symbol_count = bfd_getb32 (buf + 28);
header->reloc_section_count = bfd_getb32 (buf + 32);
header->reloc_instr_offset = bfd_getb32 (buf + 36);
header->loader_strings_offset = bfd_getb32 (buf + 40);
header->export_hash_offset = bfd_getb32 (buf + 44);
header->export_hash_table_power = bfd_getb32 (buf + 48);
header->exported_symbol_count = bfd_getb32 (buf + 52);
return 0;
}
int bfd_pef_parse_imported_library (abfd, buf, len, header)
bfd *abfd ATTRIBUTE_UNUSED;
unsigned char *buf;
size_t len;
bfd_pef_imported_library *header;
{
BFD_ASSERT (len == 24);
header->name_offset = bfd_getb32 (buf);
header->old_implementation_version = bfd_getb32 (buf + 4);
header->current_version = bfd_getb32 (buf + 8);
header->imported_symbol_count = bfd_getb32 (buf + 12);
header->first_imported_symbol = bfd_getb32 (buf + 16);
header->options = buf[20];
header->reserved_a = buf[21];
header->reserved_b = bfd_getb16 (buf + 22);
return 0;
}
int bfd_pef_parse_imported_symbol (abfd, buf, len, symbol)
bfd *abfd ATTRIBUTE_UNUSED;
unsigned char *buf;
size_t len;
bfd_pef_imported_symbol *symbol;
{
unsigned long value;
BFD_ASSERT (len == 4);
value = bfd_getb32 (buf);
symbol->class = value >> 24;
symbol->name = value & 0x00ffffff;
return 0;
}
int bfd_pef_scan_section (abfd, section)
bfd *abfd;
bfd_pef_section *section;
{
unsigned char buf[28];
bfd_seek (abfd, section->header_offset, SEEK_SET);
if (bfd_bread ((PTR) buf, 28, abfd) != 28)
return -1;
section->name_offset = bfd_h_get_32 (abfd, buf);
section->default_address = bfd_h_get_32 (abfd, buf + 4);
section->total_length = bfd_h_get_32 (abfd, buf + 8);
section->unpacked_length = bfd_h_get_32 (abfd, buf + 12);
section->container_length = bfd_h_get_32 (abfd, buf + 16);
section->container_offset = bfd_h_get_32 (abfd, buf + 20);
section->section_kind = buf[24];
section->share_kind = buf[25];
section->alignment = buf[26];
section->reserved = buf[27];
section->bfd_section = bfd_pef_make_bfd_section (abfd, section);
if (section->bfd_section == NULL)
return -1;
return 0;
}
void
bfd_pef_print_loader_header (abfd, header, file)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_pef_loader_header *header;
FILE *file;
{
fprintf (file, "main_section: %ld\n", header->main_section);
fprintf (file, "main_offset: %lu\n", header->main_offset);
fprintf (file, "init_section: %ld\n", header->init_section);
fprintf (file, "init_offset: %lu\n", header->init_offset);
fprintf (file, "term_section: %ld\n", header->term_section);
fprintf (file, "term_offset: %lu\n", header->term_offset);
fprintf (file, "imported_library_count: %lu\n",
header->imported_library_count);
fprintf (file, "total_imported_symbol_count: %lu\n",
header->total_imported_symbol_count);
fprintf (file, "reloc_section_count: %lu\n", header->reloc_section_count);
fprintf (file, "reloc_instr_offset: %lu\n", header->reloc_instr_offset);
fprintf (file, "loader_strings_offset: %lu\n",
header->loader_strings_offset);
fprintf (file, "export_hash_offset: %lu\n", header->export_hash_offset);
fprintf (file, "export_hash_table_power: %lu\n",
header->export_hash_table_power);
fprintf (file, "exported_symbol_count: %lu\n",
header->exported_symbol_count);
}
int
bfd_pef_print_loader_section (abfd, file)
bfd *abfd;
FILE *file;
{
bfd_pef_loader_header header;
asection *loadersec = NULL;
unsigned char *loaderbuf = NULL;
size_t loaderlen = 0;
int ret;
loadersec = bfd_get_section_by_name (abfd, "loader");
if (loadersec == NULL)
return -1;
loaderlen = bfd_section_size (abfd, loadersec);
loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
{
free (loaderbuf);
return -1;
}
if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
{
free (loaderbuf);
return -1;
}
if (loaderlen < 56)
{
free (loaderbuf);
return -1;
}
ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
if (ret < 0)
{
free (loaderbuf);
return -1;
}
bfd_pef_print_loader_header (abfd, &header, file);
return 0;
}
int
bfd_pef_scan_start_address (abfd)
bfd *abfd;
{
bfd_pef_loader_header header;
asection *section;
asection *loadersec = NULL;
unsigned char *loaderbuf = NULL;
size_t loaderlen = 0;
int ret;
loadersec = bfd_get_section_by_name (abfd, "loader");
if (loadersec == NULL)
goto end;
loaderlen = bfd_section_size (abfd, loadersec);
loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
goto error;
if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
goto error;
if (loaderlen < 56)
goto error;
ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
if (ret < 0)
goto error;
if (header.main_section < 0)
goto end;
for (section = abfd->sections; section != NULL; section = section->next)
if ((section->index + 1) == header.main_section)
break;
if (section == NULL)
goto error;
abfd->start_address = section->vma + header.main_offset;
end:
if (loaderbuf != NULL)
free (loaderbuf);
return 0;
error:
if (loaderbuf != NULL)
free (loaderbuf);
return -1;
}
int
bfd_pef_scan (abfd, header, mdata)
bfd *abfd;
bfd_pef_header *header;
bfd_pef_data_struct *mdata;
{
unsigned int i;
enum bfd_architecture cputype;
unsigned long cpusubtype;
mdata->header = *header;
bfd_pef_convert_architecture (header->architecture, &cputype, &cpusubtype);
if (cputype == bfd_arch_unknown)
{
fprintf (stderr, "bfd_pef_scan: unknown architecture 0x%lx\n",
header->architecture);
return -1;
}
bfd_set_arch_mach (abfd, cputype, cpusubtype);
mdata->header = *header;
abfd->flags = (abfd->xvec->object_flags
| (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
if (header->section_count != 0)
{
mdata->sections =
((bfd_pef_section *)
bfd_alloc (abfd, header->section_count * sizeof (bfd_pef_section)));
if (mdata->sections == NULL)
return -1;
for (i = 0; i < header->section_count; i++)
{
bfd_pef_section *cur = &mdata->sections[i];
cur->header_offset = 40 + (i * 28);
if (bfd_pef_scan_section (abfd, cur) < 0)
return -1;
}
}
if (bfd_pef_scan_start_address (abfd) < 0)
{
#if 0
fprintf (stderr, "bfd_pef_scan: unable to scan start address: %s\n",
bfd_errmsg (bfd_get_error ()));
return -1;
#endif
}
abfd->tdata.pef_data = mdata;
return 0;
}
static int
bfd_pef_read_header (abfd, header)
bfd *abfd;
bfd_pef_header *header;
{
unsigned char buf[40];
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bread ((PTR) buf, 40, abfd) != 40)
return -1;
header->tag1 = bfd_getb32 (buf);
header->tag2 = bfd_getb32 (buf + 4);
header->architecture = bfd_getb32 (buf + 8);
header->format_version = bfd_getb32 (buf + 12);
header->timestamp = bfd_getb32 (buf + 16);
header->old_definition_version = bfd_getb32 (buf + 20);
header->old_implementation_version = bfd_getb32 (buf + 24);
header->current_version = bfd_getb32 (buf + 28);
header->section_count = bfd_getb32 (buf + 32) + 1;
header->instantiated_section_count = bfd_getb32 (buf + 34);
header->reserved = bfd_getb32 (buf + 36);
return 0;
}
static const bfd_target *
bfd_pef_object_p (abfd)
bfd *abfd;
{
struct bfd_preserve preserve;
bfd_pef_header header;
preserve.marker = NULL;
if (bfd_pef_read_header (abfd, &header) != 0)
goto wrong;
if (header.tag1 != BFD_PEF_TAG1 || header.tag2 != BFD_PEF_TAG2)
goto wrong;
preserve.marker = bfd_zalloc (abfd, sizeof (bfd_pef_data_struct));
if (preserve.marker == NULL
|| !bfd_preserve_save (abfd, &preserve))
goto fail;
if (bfd_pef_scan (abfd, &header,
(bfd_pef_data_struct *) preserve.marker) != 0)
goto wrong;
bfd_preserve_finish (abfd, &preserve);
return abfd->xvec;
wrong:
bfd_set_error (bfd_error_wrong_format);
fail:
if (preserve.marker != NULL)
bfd_preserve_restore (abfd, &preserve);
return NULL;
}
static int bfd_pef_parse_traceback_tables (abfd, sec, buf, len, nsym, csym)
bfd *abfd;
asection *sec;
unsigned char *buf;
size_t len;
long *nsym;
asymbol **csym;
{
char *name;
asymbol function;
asymbol traceback;
const char *const tbprefix = "__traceback_";
size_t tbnamelen;
size_t pos = 0;
unsigned long count = 0;
int ret;
for (;;)
{
/* we're reading symbols two at a time */
if (csym && ((csym[count] == NULL) || (csym[count + 1] == NULL)))
break;
pos += 3;
pos -= (pos % 4);
while ((pos + 4) <= len)
{
if (bfd_getb32 (buf + pos) == 0)
break;
pos += 4;
}
if ((pos + 4) > len)
break;
ret = bfd_pef_parse_traceback_table (abfd, sec, buf, len, pos + 4,
&function, 0);
if (ret < 0)
{
/* skip over 0x0L to advance to next possible traceback table */
pos += 4;
continue;
}
BFD_ASSERT (function.name != NULL);
/* Don't bother to compute the name if we are just
counting symbols */
if (csym)
{
tbnamelen = strlen (tbprefix) + strlen (function.name);
name = bfd_alloc (abfd, tbnamelen + 1);
if (name == NULL)
{
bfd_release (abfd, (PTR) function.name);
function.name = NULL;
break;
}
snprintf (name, tbnamelen + 1, "%s%s", tbprefix, function.name);
traceback.name = name;
traceback.value = pos;
traceback.the_bfd = abfd;
traceback.section = sec;
traceback.flags = 0;
traceback.udata.i = ret;
*(csym[count]) = function;
*(csym[count + 1]) = traceback;
}
pos += ret;
count += 2;
}
*nsym = count;
return 0;
}
static int bfd_pef_parse_function_stub (abfd, buf, len, offset)
bfd *abfd ATTRIBUTE_UNUSED;
unsigned char *buf;
size_t len;
unsigned long *offset;
{
BFD_ASSERT (len == 24);
if ((bfd_getb32 (buf) & 0xffff0000) != 0x81820000)
return -1;
if (bfd_getb32 (buf + 4) != 0x90410014)
return -1;
if (bfd_getb32 (buf + 8) != 0x800c0000)
return -1;
if (bfd_getb32 (buf + 12) != 0x804c0004)
return -1;
if (bfd_getb32 (buf + 16) != 0x7c0903a6)
return -1;
if (bfd_getb32 (buf + 20) != 0x4e800420)
return -1;
if (offset != NULL)
*offset = (bfd_getb32 (buf) & 0x0000ffff) / 4;
return 0;
}
static int bfd_pef_parse_function_stubs (abfd, codesec, codebuf, codelen,
loaderbuf, loaderlen, nsym, csym)
bfd *abfd;
asection *codesec;
unsigned char *codebuf;
size_t codelen;
unsigned char *loaderbuf;
size_t loaderlen;
unsigned long *nsym;
asymbol **csym;
{
const char *const sprefix = "__stub_";
size_t codepos = 0;
unsigned long count = 0;
bfd_pef_loader_header header;
bfd_pef_imported_library *libraries = NULL;
bfd_pef_imported_symbol *imports = NULL;
unsigned long i;
int ret;
if (loaderlen < 56)
goto error;
ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
if (ret < 0)
goto error;
libraries = (bfd_pef_imported_library *) bfd_malloc
(header.imported_library_count * sizeof (bfd_pef_imported_library));
imports = (bfd_pef_imported_symbol *) bfd_malloc
(header.total_imported_symbol_count * sizeof (bfd_pef_imported_symbol));
if (loaderlen < (56 + (header.imported_library_count * 24)))
goto error;
for (i = 0; i < header.imported_library_count; i++)
{
ret = bfd_pef_parse_imported_library
(abfd, loaderbuf + 56 + (i * 24), 24, &libraries[i]);
if (ret < 0)
goto error;
}
if (loaderlen < (56 + (header.imported_library_count * 24)
+ (header.total_imported_symbol_count * 4)))
goto error;
for (i = 0; i < header.total_imported_symbol_count; i++)
{
ret = (bfd_pef_parse_imported_symbol
(abfd,
loaderbuf + 56 + (header.imported_library_count * 24) + (i * 4),
4, &imports[i]));
if (ret < 0)
goto error;
}
codepos = 0;
for (;;)
{
asymbol sym;
const char *symname;
char *name;
unsigned long index;
int ret;
if (csym && (csym[count] == NULL))
break;
codepos += 3;
codepos -= (codepos % 4);
while ((codepos + 4) <= codelen)
{
if ((bfd_getb32 (codebuf + codepos) & 0xffff0000) == 0x81820000)
break;
codepos += 4;
}
if ((codepos + 4) > codelen)
break;
ret = bfd_pef_parse_function_stub (abfd, codebuf + codepos, 24, &index);
if (ret < 0)
{
codepos += 24;
continue;
}
if (index >= header.total_imported_symbol_count)
{
codepos += 24;
continue;
}
{
size_t max, namelen;
const char *s;
if (loaderlen < (header.loader_strings_offset + imports[index].name))
goto error;
max = loaderlen - (header.loader_strings_offset + imports[index].name);
symname = loaderbuf + header.loader_strings_offset + imports[index].name;
namelen = 0;
for (s = symname; s < (symname + max); s++)
{
if (*s == '\0')
break;
if (! isprint (*s))
goto error;
namelen++;
}
if (*s != '\0')
goto error;
name = bfd_alloc (abfd, strlen (sprefix) + namelen + 1);
if (name == NULL)
break;
snprintf (name, strlen (sprefix) + namelen + 1, "%s%s",
sprefix, symname);
sym.name = name;
}
sym.value = codepos;
sym.the_bfd = abfd;
sym.section = codesec;
sym.flags = 0;
sym.udata.i = 0;
codepos += 24;
if (csym != NULL)
*(csym[count]) = sym;
count++;
}
goto end;
end:
if (libraries != NULL)
free (libraries);
if (imports != NULL)
free (imports);
*nsym = count;
return 0;
error:
if (libraries != NULL)
free (libraries);
if (imports != NULL)
free (imports);
*nsym = count;
return -1;
}
static long bfd_pef_parse_symbols (abfd, csym)
bfd *abfd;
asymbol **csym;
{
unsigned long count = 0;
asection *codesec = NULL;
unsigned char *codebuf = NULL;
size_t codelen = 0;
asection *loadersec = NULL;
unsigned char *loaderbuf = NULL;
size_t loaderlen = 0;
codesec = bfd_get_section_by_name (abfd, "code");
if (codesec != NULL)
{
codelen = bfd_section_size (abfd, codesec);
codebuf = (unsigned char *) bfd_malloc (codelen);
if (bfd_seek (abfd, codesec->filepos, SEEK_SET) < 0)
goto end;
if (bfd_bread ((PTR) codebuf, codelen, abfd) != codelen)
goto end;
}
loadersec = bfd_get_section_by_name (abfd, "loader");
if (loadersec != NULL)
{
loaderlen = bfd_section_size (abfd, loadersec);
loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
goto end;
if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
goto end;
}
count = 0;
if (codesec != NULL)
{
unsigned long ncount = 0;
bfd_pef_parse_traceback_tables (abfd, codesec, codebuf, codelen,
&ncount, csym);
count += ncount;
}
if ((codesec != NULL) && (loadersec != NULL))
{
unsigned long ncount = 0;
bfd_pef_parse_function_stubs
(abfd, codesec, codebuf, codelen, loaderbuf, loaderlen, &ncount,
(csym != NULL) ? (csym + count) : NULL);
count += ncount;
}
if (csym != NULL)
csym[count] = NULL;
end:
if (codebuf != NULL)
free (codebuf);
if (loaderbuf != NULL)
free (loaderbuf);
return count;
}
static long
bfd_pef_count_symbols (abfd)
bfd *abfd;
{
return bfd_pef_parse_symbols (abfd, NULL);
}
static long
bfd_pef_get_symtab_upper_bound (abfd)
bfd *abfd;
{
long nsyms = bfd_pef_count_symbols (abfd);
if (nsyms < 0)
return nsyms;
return ((nsyms + 1) * sizeof (asymbol *));
}
static long
bfd_pef_get_symtab (abfd, alocation)
bfd *abfd;
asymbol **alocation;
{
long i;
asymbol *syms;
long ret;
long nsyms = bfd_pef_count_symbols (abfd);
if (nsyms < 0)
return nsyms;
syms = bfd_alloc (abfd, nsyms * sizeof (asymbol));
if (syms == NULL)
return -1;
for (i = 0; i < nsyms; i++)
alocation[i] = &syms[i];
alocation[nsyms] = NULL;
ret = bfd_pef_parse_symbols (abfd, alocation);
if (ret != nsyms)
return 0;
return ret;
}
static asymbol *
bfd_pef_make_empty_symbol (abfd)
bfd *abfd;
{
return (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
}
static void
bfd_pef_get_symbol_info (abfd, symbol, ret)
bfd *abfd ATTRIBUTE_UNUSED;
asymbol *symbol;
symbol_info *ret;
{
bfd_symbol_info (symbol, ret);
}
static int
bfd_pef_sizeof_headers (abfd, exec)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_boolean exec ATTRIBUTE_UNUSED;
{
return 0;
}
const bfd_target pef_vec =
{
"pef", /* name */
bfd_target_pef_flavour, /* flavour */
BFD_ENDIAN_BIG, /* byteorder */
BFD_ENDIAN_BIG, /* header_byteorder */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
| SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
0, /* symbol_leading_char */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
{ /* bfd_check_format */
_bfd_dummy_target,
bfd_pef_object_p, /* bfd_check_format */
_bfd_dummy_target,
_bfd_dummy_target,
},
{ /* bfd_set_format */
bfd_false,
bfd_pef_mkobject,
bfd_false,
bfd_false,
},
{ /* bfd_write_contents */
bfd_false,
bfd_true,
bfd_false,
bfd_false,
},
BFD_JUMP_TABLE_GENERIC (bfd_pef),
BFD_JUMP_TABLE_COPY (_bfd_generic),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
BFD_JUMP_TABLE_SYMBOLS (bfd_pef),
BFD_JUMP_TABLE_RELOCS (bfd_pef),
BFD_JUMP_TABLE_WRITE (bfd_pef),
BFD_JUMP_TABLE_LINK (bfd_pef),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
NULL
};
#define bfd_pef_xlib_close_and_cleanup _bfd_generic_close_and_cleanup
#define bfd_pef_xlib_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define bfd_pef_xlib_new_section_hook _bfd_generic_new_section_hook
#define bfd_pef_xlib_get_section_contents _bfd_generic_get_section_contents
#define bfd_pef_xlib_set_section_contents _bfd_generic_set_section_contents
#define bfd_pef_xlib_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
#define bfd_pef_xlib_set_section_contents_in_window _bfd_generic_set_section_contents_in_window
static int
bfd_pef_xlib_read_header (abfd, header)
bfd *abfd;
bfd_pef_xlib_header *header;
{
unsigned char buf[76];
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bread ((PTR) buf, 76, abfd) != 76)
return -1;
header->tag1 = bfd_getb32 (buf);
header->tag2 = bfd_getb32 (buf + 4);
header->current_format = bfd_getb32 (buf + 8);
header->container_strings_offset = bfd_getb32 (buf + 12);
header->export_hash_offset = bfd_getb32 (buf + 16);
header->export_key_offset = bfd_getb32 (buf + 20);
header->export_symbol_offset = bfd_getb32 (buf + 24);
header->export_names_offset = bfd_getb32 (buf + 28);
header->export_hash_table_power = bfd_getb32 (buf + 32);
header->exported_symbol_count = bfd_getb32 (buf + 36);
header->frag_name_offset = bfd_getb32 (buf + 40);
header->frag_name_length = bfd_getb32 (buf + 44);
header->dylib_path_offset = bfd_getb32 (buf + 48);
header->dylib_path_length = bfd_getb32 (buf + 52);
header->cpu_family = bfd_getb32 (buf + 56);
header->cpu_model = bfd_getb32 (buf + 60);
header->date_time_stamp = bfd_getb32 (buf + 64);
header->current_version = bfd_getb32 (buf + 68);
header->old_definition_version = bfd_getb32 (buf + 72);
header->old_implementation_version = bfd_getb32 (buf + 76);
return 0;
}
int
bfd_pef_xlib_scan (abfd, header)
bfd *abfd;
bfd_pef_xlib_header *header;
{
bfd_pef_xlib_data_struct *mdata = NULL;
mdata = ((bfd_pef_xlib_data_struct *)
bfd_alloc (abfd, sizeof (bfd_pef_xlib_data_struct)));
if (mdata == NULL)
return -1;
mdata->header = *header;
abfd->flags = (abfd->xvec->object_flags
| (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
abfd->tdata.pef_xlib_data = mdata;
return 0;
}
static const bfd_target *
bfd_pef_xlib_object_p (abfd)
bfd *abfd;
{
struct bfd_preserve preserve;
bfd_pef_xlib_header header;
if (bfd_pef_xlib_read_header (abfd, &header) != 0)
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
if ((header.tag1 != BFD_PEF_XLIB_TAG1)
|| ((header.tag2 != BFD_PEF_VLIB_TAG2)
&& (header.tag2 != BFD_PEF_BLIB_TAG2)))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
if (! bfd_preserve_save (abfd, &preserve))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
if (bfd_pef_xlib_scan (abfd, &header) != 0)
{
bfd_preserve_restore (abfd, &preserve);
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
bfd_preserve_finish (abfd, &preserve);
return abfd->xvec;
}
const bfd_target pef_xlib_vec =
{
"pef-xlib", /* name */
bfd_target_pef_xlib_flavour, /* flavour */
BFD_ENDIAN_BIG, /* byteorder */
BFD_ENDIAN_BIG, /* header_byteorder */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
| SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
0, /* symbol_leading_char */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
{ /* bfd_check_format */
_bfd_dummy_target,
bfd_pef_xlib_object_p, /* bfd_check_format */
_bfd_dummy_target,
_bfd_dummy_target,
},
{ /* bfd_set_format */
bfd_false,
bfd_pef_mkobject,
bfd_false,
bfd_false,
},
{ /* bfd_write_contents */
bfd_false,
bfd_true,
bfd_false,
bfd_false,
},
BFD_JUMP_TABLE_GENERIC (bfd_pef_xlib),
BFD_JUMP_TABLE_COPY (_bfd_generic),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
BFD_JUMP_TABLE_WRITE (_bfd_nowrite),
BFD_JUMP_TABLE_LINK (_bfd_nolink),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
NULL
};
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