/* Mach-O support for BFD.
- Copyright (C) 1999-2020 Free Software Foundation, Inc.
+ Copyright (C) 1999-2021 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#define FILE_ALIGN(off, algn) \
(((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn)))
-static bfd_boolean
+static bool
bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd);
unsigned int
return mdata->header.version;
}
-bfd_boolean
+bool
bfd_mach_o_valid (bfd *abfd)
{
if (abfd == NULL || abfd->xvec == NULL)
- return FALSE;
+ return false;
if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
- return FALSE;
+ return false;
if (bfd_mach_o_get_data (abfd) == NULL)
- return FALSE;
- return TRUE;
+ return false;
+ return true;
}
-static INLINE bfd_boolean
+static INLINE bool
mach_o_wide_p (bfd_mach_o_header *header)
{
switch (header->version)
{
case 1:
- return FALSE;
+ return false;
case 2:
- return TRUE;
+ return true;
default:
BFD_FAIL ();
- return FALSE;
+ return false;
}
}
-static INLINE bfd_boolean
+static INLINE bool
bfd_mach_o_wide_p (bfd *abfd)
{
return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
/* Copy any private info we understand from the input symbol
to the output symbol. */
-bfd_boolean
+bool
bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
asymbol *isymbol,
bfd *obfd ATTRIBUTE_UNUSED,
os->n_desc = is->n_desc;
os->symbol.udata.i = is->symbol.udata.i;
- return TRUE;
+ return true;
}
/* Copy any private info we understand from the input section
to the output section. */
-bfd_boolean
+bool
bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection,
bfd *obfd, asection *osection)
{
if (ibfd->xvec->flavour != bfd_target_mach_o_flavour
|| obfd->xvec->flavour != bfd_target_mach_o_flavour)
- return TRUE;
+ return true;
BFD_ASSERT (is != NULL && os != NULL);
os->reserved2 = is->reserved2;
os->reserved3 = is->reserved3;
- return TRUE;
+ return true;
}
static const char *
}
static const char *
-cpusubtype (unsigned long cpu_type, unsigned long cpu_subtype)
+cpusubtype (unsigned long cpu_type, unsigned long cpu_subtype, char *buffer)
{
- static char buffer[128];
-
buffer[0] = 0;
switch (cpu_subtype & BFD_MACH_O_CPU_SUBTYPE_MASK)
{
return buffer;
}
-bfd_boolean
+bool
bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr)
{
FILE * file = (FILE *) ptr;
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
+ char buff[128];
fprintf (file, _(" MACH-O header:\n"));
fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic);
fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype,
cputype (mdata->header.cputype));
fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype,
- cpusubtype (mdata->header.cputype, mdata->header.cpusubtype));
+ cpusubtype (mdata->header.cputype, mdata->header.cpusubtype, buff));
fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype);
fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds);
fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds);
fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags);
fprintf (file, _(" version: %x\n"), mdata->header.version);
- return TRUE;
+ return true;
}
/* Copy any private info we understand from the input bfd
to the output bfd. */
-bfd_boolean
+bool
bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
{
bfd_mach_o_data_struct *imdata;
if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
|| bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
- return TRUE;
+ return true;
BFD_ASSERT (bfd_mach_o_valid (ibfd));
BFD_ASSERT (bfd_mach_o_valid (obfd));
/* Command is copied. */
ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command));
if (ocmd == NULL)
- return FALSE;
+ return false;
/* Copy common fields. */
ocmd->type = icmd->type;
bfd_mach_o_append_command (obfd, ocmd);
}
- return TRUE;
+ return true;
}
/* This allows us to set up to 32 bits of flags (unless we invent some
fiendish scheme to subdivide). For now, we'll just set the file flags
without error checking - just overwrite. */
-bfd_boolean
+bool
bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
if (!mdata)
- return FALSE;
+ return false;
mdata->header.flags = flags;
- return TRUE;
+ return true;
}
/* Count the total number of symbols. */
return 0;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
{
struct mach_o_header_external raw;
if (bfd_seek (abfd, 0, SEEK_SET) != 0
|| bfd_bwrite (&raw, size, abfd) != size)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_thread_command *cmd = &command->command.thread;
if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
offset += cmd->flavours[i].size + sizeof (raw);
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
namelen = strlen (cmd->name_str) + 1;
if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
- return FALSE;
+ return false;
if (bfd_mach_o_pad_command (abfd, namelen) < 0)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_dylib_command *cmd = &command->command.dylib;
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
namelen = strlen (cmd->name_str) + 1;
if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
- return FALSE;
+ return false;
if (bfd_mach_o_pad_command (abfd, namelen) < 0)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_main_command *cmd = &command->command.main;
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
if (cmd->rebase_size != 0)
if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
|| (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
cmd->rebase_size))
- return FALSE;
+ return false;
if (cmd->bind_size != 0)
if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
|| (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
cmd->bind_size))
- return FALSE;
+ return false;
if (cmd->weak_bind_size != 0)
if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
|| (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
cmd->weak_bind_size))
- return FALSE;
+ return false;
if (cmd->lazy_bind_size != 0)
if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
|| (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
cmd->lazy_bind_size))
- return FALSE;
+ return false;
if (cmd->export_size != 0)
if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
|| (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
cmd->export_size))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
long
/* Set syms_ptr_ptr and addend of RES. */
-bfd_boolean
+bool
bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd,
bfd_mach_o_reloc_info *reloc,
arelent *res, asymbol **syms)
{
_bfd_error_handler (_("\
malformed mach-o reloc: section index is greater than the number of sections"));
- return FALSE;
+ return false;
}
/* A section number. */
the PPC swap_reloc_in routine. */
res->sym_ptr_ptr = sym;
- return TRUE;
+ return true;
}
/* Do most of the work for canonicalize_relocs on RAW: create internal
(like arm64) don't follow the generic rules (symnum is a value for the
non-scattered relocation ADDEND). */
-bfd_boolean
+bool
bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd,
struct mach_o_reloc_info_external *raw,
bfd_mach_o_reloc_info *reloc,
if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc,
res, syms))
- return FALSE;
+ return false;
}
/* We have set up a reloc with all the information present, so the swapper
can modify address, value and addend fields, if necessary, to convey
information in the generic BFD reloc that is mach-o specific. */
- return TRUE;
+ return true;
}
static int
bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
unsigned long i;
struct mach_o_reloc_info_external *native_relocs = NULL;
- bfd_size_type native_size;
+ size_t native_size;
/* Allocate and read relocs. */
- native_size = count * BFD_MACH_O_RELENT_SIZE;
-
- /* PR 17512: file: 09477b57. */
- if (native_size < count)
+ if (_bfd_mul_overflow (count, BFD_MACH_O_RELENT_SIZE, &native_size))
+ /* PR 17512: file: 09477b57. */
goto err;
- native_relocs =
- (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
+ if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
+ return -1;
+ native_relocs = (struct mach_o_reloc_info_external *)
+ _bfd_malloc_and_read (abfd, native_size, native_size);
if (native_relocs == NULL)
return -1;
- if (bfd_seek (abfd, filepos, SEEK_SET) != 0
- || bfd_bread (native_relocs, native_size, abfd) != native_size)
- goto err;
-
for (i = 0; i < count; i++)
{
if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i],
if (asect->relocation == NULL)
{
- if (asect->reloc_count * sizeof (arelent) < asect->reloc_count)
+ size_t amt;
+
+ if (_bfd_mul_overflow (asect->reloc_count, sizeof (arelent), &amt))
return -1;
- res = bfd_malloc (asect->reloc_count * sizeof (arelent));
+ res = bfd_malloc (amt);
if (res == NULL)
return -1;
if (mdata->dyn_reloc_cache == NULL)
{
- if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)
- < (dysymtab->nextrel + dysymtab->nlocrel))
- return -1;
+ ufile_ptr filesize = bfd_get_file_size (abfd);
+ size_t amt;
- res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
- * sizeof (arelent));
+ if (filesize != 0)
+ {
+ if (dysymtab->extreloff > filesize
+ || dysymtab->nextrel > ((filesize - dysymtab->extreloff)
+ / BFD_MACH_O_RELENT_SIZE)
+ || dysymtab->locreloff > filesize
+ || dysymtab->nlocrel > ((filesize - dysymtab->locreloff)
+ / BFD_MACH_O_RELENT_SIZE))
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return -1;
+ }
+ }
+ if (_bfd_mul_overflow (dysymtab->nextrel + dysymtab->nlocrel,
+ sizeof (arelent), &amt))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ return -1;
+ }
+
+ res = bfd_malloc (amt);
if (res == NULL)
return -1;
fields[3] = info;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
{
unsigned int i;
sec = section->bfdsection;
if (sec->reloc_count == 0)
- return TRUE;
+ return true;
if (bed->_bfd_mach_o_swap_reloc_out == NULL)
- return TRUE;
+ return true;
if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
- return FALSE;
+ return false;
/* Convert and write. */
entries = section->bfdsection->orelocation;
/* Convert relocation to an intermediate representation. */
if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
- return FALSE;
+ return false;
/* Lower the relocation info. */
if (pinfo->r_scattered)
if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
!= BFD_MACH_O_RELENT_SIZE)
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
{
struct mach_o_section_32_external raw;
if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
!= BFD_MACH_O_SECTION_SIZE)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
{
struct mach_o_section_64_external raw;
if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
!= BFD_MACH_O_SECTION_64_SIZE)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
{
struct mach_o_segment_command_32_external raw;
for (sec = seg->sect_head; sec != NULL; sec = sec->next)
if (!bfd_mach_o_write_relocs (abfd, sec))
- return FALSE;
+ return false;
memcpy (raw.segname, seg->segname, 16);
bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
for (sec = seg->sect_head; sec != NULL; sec = sec->next)
if (!bfd_mach_o_write_section_32 (abfd, sec))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
{
struct mach_o_segment_command_64_external raw;
for (sec = seg->sect_head; sec != NULL; sec = sec->next)
if (!bfd_mach_o_write_relocs (abfd, sec))
- return FALSE;
+ return false;
memcpy (raw.segname, seg->segname, 16);
bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
for (sec = seg->sect_head; sec != NULL; sec = sec->next)
if (!bfd_mach_o_write_section_64 (abfd, sec))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
/* Write the symbols first. */
if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
strtab = _bfd_stringtab_init ();
if (strtab == NULL)
- return FALSE;
+ return false;
if (sym->nsyms > 0)
/* Although we don't strictly need to do this, for compatibility with
Darwin system tools, actually output an empty string for the index
0 entry. */
- _bfd_stringtab_add (strtab, "", TRUE, FALSE);
+ _bfd_stringtab_add (strtab, "", true, false);
for (i = 0; i < sym->nsyms; i++)
{
str_index = 0;
else
{
- str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
+ str_index = _bfd_stringtab_add (strtab, s->symbol.name, true, false);
if (str_index == (bfd_size_type) -1)
goto err;
/* Pad string table. */
padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
if (padlen < 0)
- return FALSE;
+ return false;
mdata->filelen += padlen;
sym->strsize += padlen;
- return TRUE;
+ return true;
err:
_bfd_stringtab_free (strtab);
sym->strsize = 0;
- return FALSE;
+ return false;
}
-static bfd_boolean
+static bool
bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_symtab_command *sym = &command->command.symtab;
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
|| bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
/* Count the number of indirect symbols in the image.
/* Create the dysymtab. */
-static bfd_boolean
+static bool
bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
{
_bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
" implemented for dysymtab commands."));
- return FALSE;
+ return false;
}
cmd->ilocalsym = 0;
{
unsigned i;
unsigned n;
+ size_t amt;
mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
cmd->indirectsymoff = mdata->filelen;
- mdata->filelen += cmd->nindirectsyms * 4;
+ if (_bfd_mul_overflow (cmd->nindirectsyms, 4, &amt))
+ return false;
+ mdata->filelen += amt;
- if (cmd->nindirectsyms * 4 < cmd->nindirectsyms)
- return FALSE;
- cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
+ cmd->indirect_syms = bfd_zalloc (abfd, amt);
if (cmd->indirect_syms == NULL)
- return FALSE;
+ return false;
n = 0;
for (i = 0; i < mdata->nsects; ++i)
}
}
- return TRUE;
+ return true;
}
/* Write a dysymtab command.
TODO: Possibly coalesce writes of smaller objects. */
-static bfd_boolean
+static bool
bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
unsigned int i;
if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->nmodtab; i++)
{
&w.objc_module_info_size);
if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
- return FALSE;
+ return false;
}
else
{
&n.objc_module_info_size);
if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
- return FALSE;
+ return false;
}
}
}
unsigned int i;
if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->ntoc; i++)
{
bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
}
}
unsigned int i;
if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->nindirectsyms; ++i)
{
bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
}
}
unsigned int i;
if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->nextrefsyms; i++)
{
bfd_h_put_32 (abfd, v, raw);
if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
}
}
/* The command. */
if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
- return FALSE;
+ return false;
else
{
struct mach_o_dysymtab_command_external raw;
bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
static unsigned
(by name)
*/
-static bfd_boolean
+static bool
bfd_mach_o_mangle_symbols (bfd *abfd)
{
unsigned long i;
asymbol **symbols = bfd_get_outsymbols (abfd);
if (symbols == NULL || bfd_get_symcount (abfd) == 0)
- return TRUE;
+ return true;
for (i = 0; i < bfd_get_symcount (abfd); i++)
{
s->symbol.udata.i = i; /* renumber. */
}
- return TRUE;
+ return true;
}
/* We build a flat table of sections, which can be re-ordered if necessary.
Fill in the section number and other mach-o-specific data. */
-static bfd_boolean
+static bool
bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
{
asection *sec;
doing. */
if (mdata->nsects == nsect
&& (mdata->nsects == 0 || mdata->sections != NULL))
- return TRUE;
+ return true;
/* We need to check that this can be done... */
if (nsect > 255)
{
_bfd_error_handler (_("mach-o: there are too many sections (%u)"
" maximum is 255,\n"), nsect);
- return FALSE;
+ return false;
}
mdata->nsects = nsect;
- if (_bfd_mul_overflow (mdata->nsects, sizeof (bfd_mach_o_section *), &amt))
- {
- bfd_set_error (bfd_error_no_memory);
- return FALSE;
- }
+ amt = mdata->nsects * sizeof (bfd_mach_o_section *);
mdata->sections = bfd_alloc (abfd, amt);
if (mdata->sections == NULL)
- return FALSE;
+ return false;
/* Create Mach-O sections.
Section type, attribute and align should have been set when the
sec->target_index = ++target_index;
}
- return TRUE;
+ return true;
}
-bfd_boolean
+bool
bfd_mach_o_write_contents (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
/* Make the commands, if not already present. */
if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
- return FALSE;
- abfd->output_has_begun = TRUE;
+ return false;
+ abfd->output_has_begun = true;
/* Write the header. */
if (!bfd_mach_o_write_header (abfd, &mdata->header))
- return FALSE;
+ return false;
/* First pass: allocate the linkedit segment. */
for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
/* Build the dysymtab. */
if (dysymtab != NULL)
if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
- return FALSE;
+ return false;
/* Write symtab and strtab. */
if (symtab != NULL)
if (!bfd_mach_o_write_symtab_content (abfd, symtab))
- return FALSE;
+ return false;
/* Adjust linkedit size. */
if (linkedit != NULL)
if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
|| bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
- return FALSE;
+ return false;
switch (cmd->type)
{
case BFD_MACH_O_LC_SEGMENT:
if (!bfd_mach_o_write_segment_32 (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_SEGMENT_64:
if (!bfd_mach_o_write_segment_64 (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_SYMTAB:
if (!bfd_mach_o_write_symtab (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_DYSYMTAB:
if (!bfd_mach_o_write_dysymtab (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_THREAD:
case BFD_MACH_O_LC_UNIXTHREAD:
if (!bfd_mach_o_write_thread (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_LOAD_DYLIB:
if (!bfd_mach_o_write_dylib (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_LOAD_DYLINKER:
if (!bfd_mach_o_write_dylinker (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_MAIN:
if (!bfd_mach_o_write_main (abfd, cmd))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_DYLD_INFO:
if (!bfd_mach_o_write_dyld_info (abfd, cmd))
- return FALSE;
+ return false;
break;
default:
_bfd_error_handler
(_("unable to write unknown load command %#x"),
cmd->type);
- return FALSE;
+ return false;
}
}
- return TRUE;
+ return true;
}
static void
s->flags = BFD_MACH_O_S_REGULAR;
}
-static bfd_boolean
+static bool
bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
(_("section address (%#" PRIx64 ") "
"below start of segment (%#" PRIx64 ")"),
(uint64_t) s->addr, (uint64_t) vma);
- return FALSE;
+ return false;
}
vma = s->addr + s->size;
/* Relocs shouldn't appear in non-object files. */
if (s->bfdsection->reloc_count != 0)
- return FALSE;
+ return false;
}
/* Set maxprot. */
seg->filesize = (seg->filesize + pagemask) & ~pagemask;
mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
- return TRUE;
+ return true;
}
/* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
fields in header. */
-static bfd_boolean
+static bool
bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
{
unsigned wide = mach_o_wide_p (&mdata->header);
ufile_ptr offset;
bfd_mach_o_load_command *cmd;
unsigned int align;
- bfd_boolean ret = TRUE;
+ bool ret = true;
hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
align = wide ? 8 - 1 : 4 - 1;
_bfd_error_handler
(_("unable to layout unknown load command %#x"),
cmd->type);
- ret = FALSE;
+ ret = false;
break;
}
/* Init segment command. */
cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
- cmd->type_required = FALSE;
+ cmd->type_required = false;
strcpy (seg->segname, segname);
seg->nsects = nbr_sect;
TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
and copy functionality. */
-bfd_boolean
+bool
bfd_mach_o_build_commands (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
/* Return now if already built. */
if (mdata->header.ncmds != 0)
- return TRUE;
+ return true;
/* Fill in the file type, if not already set. */
if (mdata->header.filetype == 0)
since that depends on properly numbered sections. */
if (mdata->nsects == 0 || mdata->sections == NULL)
if (! bfd_mach_o_mangle_sections (abfd, mdata))
- return FALSE;
+ return false;
/* Order the symbol table, fill-in/check mach-o specific fields and
partition out any indirect symbols. */
if (!bfd_mach_o_mangle_symbols (abfd))
- return FALSE;
+ return false;
/* Segment commands. */
if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
/* Create commands for segments (and symtabs), prepend them. */
commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
if (commands == NULL)
- return FALSE;
+ return false;
for (i = 0; i < nbr_commands - 1; i++)
commands[i].next = &commands[i + 1];
commands[nbr_commands - 1].next = mdata->first_command;
bfd_mach_o_load_command *cmd = &commands[symtab_idx];
cmd->type = BFD_MACH_O_LC_SYMTAB;
- cmd->type_required = FALSE;
+ cmd->type_required = false;
}
/* If required, setup symtab command, see comment above about the quality
bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
cmd->type = BFD_MACH_O_LC_DYSYMTAB;
- cmd->type_required = FALSE;
+ cmd->type_required = false;
}
/* Create the main command. */
bfd_mach_o_load_command *cmd = &commands[main_idx];
cmd->type = BFD_MACH_O_LC_MAIN;
- cmd->type_required = TRUE;
+ cmd->type_required = true;
cmd->command.main.entryoff = 0;
cmd->command.main.stacksize = 0;
/* Layout commands. */
if (! bfd_mach_o_layout_commands (mdata))
- return FALSE;
+ return false;
/* So, now we have sized the commands and the filelen set to that.
Now we can build the segment command and set the section file offsets. */
for (i = 0; i < nbr_segcmd; i++)
if (!bfd_mach_o_build_obj_seg_command
(abfd, &commands[i].command.segment))
- return FALSE;
+ return false;
}
else
{
bfd_mach_o_segment_command *seg = &commands[i].command.segment;
if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
- return FALSE;
+ return false;
if (seg->vmaddr + seg->vmsize > maxvma)
maxvma = seg->vmaddr + seg->vmsize;
bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
}
- return TRUE;
+ return true;
}
/* Set the contents of a section. */
-bfd_boolean
+bool
bfd_mach_o_set_section_contents (bfd *abfd,
asection *section,
const void * location,
/* Trying to write the first section contents will trigger the creation of
the load commands if they are not already present. */
if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
- return FALSE;
+ return false;
if (count == 0)
- return TRUE;
+ return true;
pos = section->filepos + offset;
if (bfd_seek (abfd, pos, SEEK_SET) != 0
|| bfd_bwrite (location, count, abfd) != count)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
int
return new_symbol;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
{
struct mach_o_header_external raw;
/* Just read the magic number. */
if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
|| bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
- return FALSE;
+ return false;
if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
{
else
{
header->byteorder = BFD_ENDIAN_UNKNOWN;
- return FALSE;
+ return false;
}
/* Once the size of the header is known, read the full header. */
if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
|| bfd_bread (&raw, size, abfd) != size)
- return FALSE;
+ return false;
header->cputype = (*get32) (raw.cputype);
header->cpusubtype = (*get32) (raw.cpusubtype);
else
header->reserved = 0;
- return TRUE;
+ return true;
}
-bfd_boolean
+bool
bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
{
bfd_mach_o_section *s;
s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
if (s == NULL)
- return FALSE;
+ return false;
sec->used_by_bfd = s;
s->bfdsection = sec;
return bfd_mach_o_read_section_32 (abfd, prot);
}
-static bfd_boolean
+static bool
bfd_mach_o_read_symtab_symbol (bfd *abfd,
bfd_mach_o_symtab_command *sym,
bfd_mach_o_asymbol *s,
/* xgettext:c-format */
(_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
symwidth, symoff);
- return FALSE;
+ return false;
}
stroff = bfd_h_get_32 (abfd, raw.n_strx);
(_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
stroff,
sym->strsize);
- return FALSE;
+ return false;
}
s->symbol.the_bfd = abfd;
}
}
- return TRUE;
+ return true;
}
-bfd_boolean
+bool
bfd_mach_o_read_symtab_strtab (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
/* Fail if there is no symtab. */
if (sym == NULL)
- return FALSE;
+ return false;
/* Success if already loaded. */
if (sym->strtab)
- return TRUE;
+ return true;
if (abfd->flags & BFD_IN_MEMORY)
{
if ((sym->stroff + sym->strsize) > b->size)
{
bfd_set_error (bfd_error_file_truncated);
- return FALSE;
+ return false;
}
sym->strtab = (char *) b->buffer + sym->stroff;
}
{
/* See PR 21840 for a reproducer. */
if ((sym->strsize + 1) == 0)
- return FALSE;
- sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
+ return false;
+ if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
+ return false;
+ sym->strtab = (char *) _bfd_alloc_and_read (abfd, sym->strsize + 1,
+ sym->strsize);
if (sym->strtab == NULL)
- return FALSE;
+ return false;
- if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
- || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
- {
- /* PR 17512: file: 10888-1609-0.004. */
- bfd_release (abfd, sym->strtab);
- sym->strtab = NULL;
- bfd_set_error (bfd_error_file_truncated);
- return FALSE;
- }
/* Zero terminate the string table. */
sym->strtab[sym->strsize] = 0;
}
- return TRUE;
+ return true;
}
-bfd_boolean
+bool
bfd_mach_o_read_symtab_symbols (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bfd_mach_o_symtab_command *sym = mdata->symtab;
unsigned long i;
size_t amt;
+ ufile_ptr filesize;
- if (sym == NULL || sym->symbols)
+ if (sym == NULL || sym->nsyms == 0 || sym->symbols)
/* Return now if there are no symbols or if already loaded. */
- return TRUE;
+ return true;
+
+ filesize = bfd_get_file_size (abfd);
+ if (filesize != 0)
+ {
+ unsigned int wide = mach_o_wide_p (&mdata->header);
+ unsigned int symwidth
+ = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
+ if (sym->symoff > filesize
+ || sym->nsyms > (filesize - sym->symoff) / symwidth)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ sym->nsyms = 0;
+ return false;
+ }
+ }
if (_bfd_mul_overflow (sym->nsyms, sizeof (bfd_mach_o_asymbol), &amt)
|| (sym->symbols = bfd_alloc (abfd, amt)) == NULL)
{
bfd_set_error (bfd_error_no_memory);
- _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
- "unable to allocate memory for symbols"));
sym->nsyms = 0;
- return FALSE;
+ return false;
}
if (!bfd_mach_o_read_symtab_strtab (abfd))
if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
goto fail;
- return TRUE;
+ return true;
fail:
bfd_release (abfd, sym->symbols);
sym->symbols = NULL;
sym->nsyms = 0;
- return FALSE;
+ return false;
}
static const char *
}
}
-static bfd_boolean
+static unsigned char *
+bfd_mach_o_alloc_and_read (bfd *abfd, file_ptr filepos, size_t size)
+{
+ if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
+ return NULL;
+ return _bfd_alloc_and_read (abfd, size, size);
+}
+
+static bool
bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
unsigned int namelen;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
nameoff = bfd_h_get_32 (abfd, raw.str);
if (nameoff > command->len)
- return FALSE;
+ return false;
cmd->name_offset = nameoff;
namelen = command->len - nameoff;
nameoff += command->offset;
- cmd->name_str = bfd_alloc (abfd, namelen);
- if (cmd->name_str == NULL)
- return FALSE;
- if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
- || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
- return FALSE;
- return TRUE;
+ cmd->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, nameoff, namelen);
+ return cmd->name_str != NULL;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
struct mach_o_dylib_command_external raw;
unsigned int nameoff;
unsigned int namelen;
+ file_ptr pos;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
switch (command->type)
{
case BFD_MACH_O_LC_LOAD_DYLIB:
break;
default:
BFD_FAIL ();
- return FALSE;
+ return false;
}
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
nameoff = bfd_h_get_32 (abfd, raw.name);
if (nameoff > command->len)
- return FALSE;
+ return false;
cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
cmd->name_offset = command->offset + nameoff;
namelen = command->len - nameoff;
- cmd->name_str = bfd_alloc (abfd, namelen);
- if (cmd->name_str == NULL)
- return FALSE;
- if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
- || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
- return FALSE;
- return TRUE;
+ pos = mdata->hdr_offset + cmd->name_offset;
+ cmd->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, pos, namelen);
+ return cmd->name_str != NULL;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_prebound_dylib (bfd *abfd,
bfd_mach_o_load_command *command)
{
unsigned char *str;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
nameoff = bfd_h_get_32 (abfd, raw.name);
modoff = bfd_h_get_32 (abfd, raw.linked_modules);
if (nameoff > command->len || modoff > command->len)
- return FALSE;
+ return false;
str_len = command->len - sizeof (raw);
- str = bfd_alloc (abfd, str_len);
+ str = _bfd_alloc_and_read (abfd, str_len, str_len);
if (str == NULL)
- return FALSE;
- if (bfd_bread (str, str_len, abfd) != str_len)
- return FALSE;
+ return false;
cmd->name_offset = command->offset + nameoff;
cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_prebind_cksum (bfd *abfd,
bfd_mach_o_load_command *command)
{
struct mach_o_prebind_cksum_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->cksum = bfd_get_32 (abfd, raw.cksum);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_twolevel_hints (bfd *abfd,
bfd_mach_o_load_command *command)
{
struct mach_o_twolevel_hints_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->offset = bfd_get_32 (abfd, raw.offset);
cmd->nhints = bfd_get_32 (abfd, raw.nhints);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
unsigned int namelen;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
nameoff = bfd_h_get_32 (abfd, raw.name);
if (nameoff > command->len)
- return FALSE;
+ return false;
fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
fvm->name_offset = command->offset + nameoff;
namelen = command->len - nameoff;
- fvm->name_str = bfd_alloc (abfd, namelen);
- if (fvm->name_str == NULL)
- return FALSE;
- if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
- || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
- return FALSE;
- return TRUE;
+ fvm->name_str = (char *) bfd_mach_o_alloc_and_read (abfd, fvm->name_offset,
+ namelen);
+ return fvm->name_str != NULL;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
|| bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
count = bfd_h_get_32 (abfd, raw.count);
if (count > (unsigned) -1 / 4
|| command->len - (offset + sizeof (raw)) < count * 4)
- return FALSE;
+ return false;
offset += sizeof (raw) + count * 4;
nflavours++;
}
if (nflavours == 0 || offset != command->len)
- return FALSE;
+ return false;
/* Allocate threads. */
if (_bfd_mul_overflow (nflavours, sizeof (bfd_mach_o_thread_flavour), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
cmd->flavours = bfd_alloc (abfd, amt);
if (cmd->flavours == NULL)
- return FALSE;
+ return false;
cmd->nflavours = nflavours;
offset = 8;
{
if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
|| bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
sname = bfd_alloc (abfd, snamelen);
if (sname == NULL)
- return FALSE;
+ return false;
for (;;)
{
cmd->section = bfdsec;
}
- return TRUE;
+ return true;
}
-static bfd_boolean
-bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
+static bool
+bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command,
+ ufile_ptr filesize)
{
bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
struct mach_o_dysymtab_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
unsigned int module_len = wide ? 56 : 52;
size_t amt;
+ if (cmd->modtaboff > filesize
+ || cmd->nmodtab > (filesize - cmd->modtaboff) / module_len)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return false;
+ }
if (_bfd_mul_overflow (cmd->nmodtab,
sizeof (bfd_mach_o_dylib_module), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
cmd->dylib_module = bfd_alloc (abfd, amt);
if (cmd->dylib_module == NULL)
- return FALSE;
+ return false;
if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->nmodtab; i++)
{
unsigned char buf[56];
if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
- return FALSE;
+ return false;
module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
{
unsigned long i;
size_t amt;
+ struct mach_o_dylib_table_of_contents_external raw;
+ if (cmd->tocoff > filesize
+ || cmd->ntoc > (filesize - cmd->tocoff) / sizeof (raw))
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return false;
+ }
if (_bfd_mul_overflow (cmd->ntoc,
sizeof (bfd_mach_o_dylib_table_of_content), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
cmd->dylib_toc = bfd_alloc (abfd, amt);
if (cmd->dylib_toc == NULL)
- return FALSE;
+ return false;
if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->ntoc; i++)
{
- struct mach_o_dylib_table_of_contents_external raw;
bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
unsigned int i;
size_t amt;
+ if (cmd->indirectsymoff > filesize
+ || cmd->nindirectsyms > (filesize - cmd->indirectsymoff) / 4)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return false;
+ }
if (_bfd_mul_overflow (cmd->nindirectsyms, sizeof (unsigned int), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
cmd->indirect_syms = bfd_alloc (abfd, amt);
if (cmd->indirect_syms == NULL)
- return FALSE;
+ return false;
if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->nindirectsyms; i++)
{
unsigned int *is = &cmd->indirect_syms[i];
if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
*is = bfd_h_get_32 (abfd, raw);
}
unsigned int i;
size_t amt;
+ if (cmd->extrefsymoff > filesize
+ || cmd->nextrefsyms > (filesize - cmd->extrefsymoff) / 4)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return false;
+ }
if (_bfd_mul_overflow (cmd->nextrefsyms,
sizeof (bfd_mach_o_dylib_reference), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
cmd->ext_refs = bfd_alloc (abfd, amt);
if (cmd->ext_refs == NULL)
- return FALSE;
+ return false;
if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
- return FALSE;
+ return false;
for (i = 0; i < cmd->nextrefsyms; i++)
{
bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
/* Fields isym and flags are written as bit-fields, thus we need
a specific processing for endianness. */
}
if (mdata->dysymtab)
- return FALSE;
+ return false;
mdata->dysymtab = cmd;
- return TRUE;
+ return true;
}
-static bfd_boolean
-bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
+static bool
+bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command,
+ ufile_ptr filesize)
{
bfd_mach_o_symtab_command *symtab = &command->command.symtab;
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
symtab->symbols = NULL;
symtab->strtab = NULL;
+ if (symtab->symoff > filesize
+ || symtab->nsyms > (filesize - symtab->symoff) / BFD_MACH_O_NLIST_SIZE
+ || symtab->stroff > filesize
+ || symtab->strsize > filesize - symtab->stroff)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return false;
+ }
+
if (symtab->nsyms != 0)
abfd->flags |= HAS_SYMS;
if (mdata->symtab)
- return FALSE;
+ return false;
mdata->symtab = symtab;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_uuid_command *cmd = &command->command.uuid;
BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
if (command->len < 16 + 8)
- return FALSE;
+ return false;
if (bfd_bread (cmd->uuid, 16, abfd) != 16)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
struct mach_o_linkedit_data_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
cmd->datasize = bfd_get_32 (abfd, raw.datasize);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_str_command *cmd = &command->command.str;
unsigned long off;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
off = bfd_get_32 (abfd, raw.str);
if (off > command->len)
- return FALSE;
+ return false;
cmd->stroff = command->offset + off;
cmd->str_len = command->len - off;
- cmd->str = bfd_alloc (abfd, cmd->str_len);
- if (cmd->str == NULL)
- return FALSE;
- if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
- || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
- return FALSE;
- return TRUE;
-}
-
-static unsigned char *
-bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
-{
- unsigned char *buf;
-
- buf = bfd_alloc (abfd, size);
- if (buf == NULL)
- return NULL;
- if (bfd_seek (abfd, off, SEEK_SET) != 0
- || bfd_bread (buf, size, abfd) != size)
- return NULL;
- return buf;
+ cmd->str = (char *) bfd_mach_o_alloc_and_read (abfd, cmd->stroff,
+ cmd->str_len);
+ return cmd->str != NULL;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
{
/* Read rebase content. */
if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
{
- cmd->rebase_content =
- bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
+ cmd->rebase_content
+ = bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
if (cmd->rebase_content == NULL)
- return FALSE;
+ return false;
}
/* Read bind content. */
if (cmd->bind_content == NULL && cmd->bind_size != 0)
{
- cmd->bind_content =
- bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
+ cmd->bind_content
+ = bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
if (cmd->bind_content == NULL)
- return FALSE;
+ return false;
}
/* Read weak bind content. */
cmd->weak_bind_content = bfd_mach_o_alloc_and_read
(abfd, cmd->weak_bind_off, cmd->weak_bind_size);
if (cmd->weak_bind_content == NULL)
- return FALSE;
+ return false;
}
/* Read lazy bind content. */
cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
(abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
if (cmd->lazy_bind_content == NULL)
- return FALSE;
+ return false;
}
/* Read export content. */
cmd->export_content = bfd_mach_o_alloc_and_read
(abfd, cmd->export_off, cmd->export_size);
if (cmd->export_content == NULL)
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
struct mach_o_dyld_info_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
cmd->export_off = bfd_get_32 (abfd, raw.export_off);
cmd->export_size = bfd_get_32 (abfd, raw.export_size);
cmd->export_content = NULL;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_version_min_command *cmd = &command->command.version_min;
struct mach_o_version_min_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->version = bfd_get_32 (abfd, raw.version);
cmd->sdk = bfd_get_32 (abfd, raw.sdk);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
struct mach_o_encryption_info_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
struct mach_o_encryption_info_64_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_main_command *cmd = &command->command.main;
struct mach_o_entry_point_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_source_version_command *cmd = &command->command.source_version;
bfd_uint64_t ver;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
ver = bfd_get_64 (abfd, raw.version);
/* Note: we use a serie of shift to avoid shift > 32 (for which gcc
cmd->b = ver & 0x3ff;
ver >>= 10;
cmd->a = ver & 0xffffff;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_note (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_note_command *cmd = &command->command.note;
struct mach_o_note_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
memcpy (cmd->data_owner, raw.data_owner, 16);
cmd->offset = bfd_get_64 (abfd, raw.offset);
cmd->size = bfd_get_64 (abfd, raw.size);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_build_version (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_build_version_command *cmd = &command->command.build_version;
struct mach_o_build_version_command_external raw;
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
cmd->platform = bfd_get_32 (abfd, raw.platform);
cmd->minos = bfd_get_32 (abfd, raw.minos);
cmd->sdk = bfd_get_32 (abfd, raw.sdk);
cmd->ntools = bfd_get_32 (abfd, raw.ntools);
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_segment (bfd *abfd,
bfd_mach_o_load_command *command,
unsigned int wide)
BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
memcpy (seg->segname, raw.segname, 16);
seg->segname[16] = '\0';
BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
if (command->len < sizeof (raw) + 8)
- return FALSE;
+ return false;
if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
- return FALSE;
+ return false;
memcpy (seg->segname, raw.segname, 16);
seg->segname[16] = '\0';
sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
if (sec == NULL)
- return FALSE;
+ return false;
bfd_mach_o_append_section_to_segment
(seg, bfd_mach_o_get_mach_o_section (sec));
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
{
return bfd_mach_o_read_segment (abfd, command, 0);
}
-static bfd_boolean
+static bool
bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
{
return bfd_mach_o_read_segment (abfd, command, 1);
}
-static bfd_boolean
-bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
+static bool
+bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command,
+ ufile_ptr filesize)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
struct mach_o_load_command_external raw;
/* Read command type and length. */
if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
|| bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
- return FALSE;
+ return false;
cmd = bfd_h_get_32 (abfd, raw.cmd);
command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
- command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
+ command->type_required = (cmd & BFD_MACH_O_LC_REQ_DYLD) != 0;
command->len = bfd_h_get_32 (abfd, raw.cmdsize);
if (command->len < 8 || command->len % 4 != 0)
- return FALSE;
+ return false;
switch (command->type)
{
case BFD_MACH_O_LC_SEGMENT:
if (!bfd_mach_o_read_segment_32 (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_SEGMENT_64:
if (!bfd_mach_o_read_segment_64 (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_SYMTAB:
- if (!bfd_mach_o_read_symtab (abfd, command))
- return FALSE;
+ if (!bfd_mach_o_read_symtab (abfd, command, filesize))
+ return false;
break;
case BFD_MACH_O_LC_SYMSEG:
break;
case BFD_MACH_O_LC_THREAD:
case BFD_MACH_O_LC_UNIXTHREAD:
if (!bfd_mach_o_read_thread (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_LOAD_DYLINKER:
case BFD_MACH_O_LC_ID_DYLINKER:
case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
if (!bfd_mach_o_read_dylinker (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_LOAD_DYLIB:
case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
case BFD_MACH_O_LC_REEXPORT_DYLIB:
case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
if (!bfd_mach_o_read_dylib (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_PREBOUND_DYLIB:
if (!bfd_mach_o_read_prebound_dylib (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_LOADFVMLIB:
case BFD_MACH_O_LC_IDFVMLIB:
if (!bfd_mach_o_read_fvmlib (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_IDENT:
case BFD_MACH_O_LC_FVMFILE:
case BFD_MACH_O_LC_SUB_CLIENT:
case BFD_MACH_O_LC_RPATH:
if (!bfd_mach_o_read_str (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_DYSYMTAB:
- if (!bfd_mach_o_read_dysymtab (abfd, command))
- return FALSE;
+ if (!bfd_mach_o_read_dysymtab (abfd, command, filesize))
+ return false;
break;
case BFD_MACH_O_LC_PREBIND_CKSUM:
if (!bfd_mach_o_read_prebind_cksum (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_TWOLEVEL_HINTS:
if (!bfd_mach_o_read_twolevel_hints (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_UUID:
if (!bfd_mach_o_read_uuid (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_CODE_SIGNATURE:
case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
case BFD_MACH_O_LC_DATA_IN_CODE:
case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
+ case BFD_MACH_O_LC_DYLD_EXPORTS_TRIE:
+ case BFD_MACH_O_LC_DYLD_CHAINED_FIXUPS:
if (!bfd_mach_o_read_linkedit (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_ENCRYPTION_INFO:
if (!bfd_mach_o_read_encryption_info (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_DYLD_INFO:
if (!bfd_mach_o_read_dyld_info (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
case BFD_MACH_O_LC_VERSION_MIN_TVOS:
if (!bfd_mach_o_read_version_min (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_MAIN:
if (!bfd_mach_o_read_main (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_SOURCE_VERSION:
if (!bfd_mach_o_read_source_version (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_LINKER_OPTIONS:
break;
case BFD_MACH_O_LC_NOTE:
if (!bfd_mach_o_read_note (abfd, command))
- return FALSE;
+ return false;
break;
case BFD_MACH_O_LC_BUILD_VERSION:
if (!bfd_mach_o_read_build_version (abfd, command))
- return FALSE;
+ return false;
break;
default:
command->len = 0;
_bfd_error_handler (_("%pB: unknown load command %#x"),
abfd, command->type);
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_flatten_sections (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
if (_bfd_mul_overflow (mdata->nsects, sizeof (bfd_mach_o_section *), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
mdata->sections = bfd_alloc (abfd, amt);
if (mdata->sections == NULL && mdata->nsects != 0)
- return FALSE;
+ return false;
/* Fill the array. */
csect = 0;
mdata->sections[csect++] = sec;
}
}
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_scan_start_address (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
{
abfd->start_address = main_cmd->entryoff
+ (text_sect->addr - text_sect->offset);
- return TRUE;
+ return true;
}
}
/* An object file has no start address, so do not fail if not found. */
if (thr == NULL)
- return TRUE;
+ return true;
/* FIXME: create a subtarget hook ? */
for (i = 0; i < thr->nflavours; i++)
if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
|| bfd_bread (buf, 4, abfd) != 4)
- return FALSE;
+ return false;
abfd->start_address = bfd_h_get_32 (abfd, buf);
}
if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
|| bfd_bread (buf, 4, abfd) != 4)
- return FALSE;
+ return false;
abfd->start_address = bfd_h_get_32 (abfd, buf);
}
if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
|| bfd_bread (buf, 8, abfd) != 8)
- return FALSE;
+ return false;
abfd->start_address = bfd_h_get_64 (abfd, buf);
}
if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
|| bfd_bread (buf, 8, abfd) != 8)
- return FALSE;
+ return false;
abfd->start_address = bfd_h_get_64 (abfd, buf);
}
}
- return TRUE;
+ return true;
}
-bfd_boolean
+bool
bfd_mach_o_set_arch_mach (bfd *abfd,
enum bfd_architecture arch,
unsigned long machine)
if (arch != bed->arch
&& arch != bfd_arch_unknown
&& bed->arch != bfd_arch_unknown)
- return FALSE;
+ return false;
return bfd_default_set_arch_mach (abfd, arch, machine);
}
-static bfd_boolean
+static bool
bfd_mach_o_scan (bfd *abfd,
bfd_mach_o_header *header,
bfd_mach_o_data_struct *mdata)
/* xgettext:c-format */
(_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
header->cputype, header->cpusubtype);
- return FALSE;
+ return false;
}
bfd_set_arch_mach (abfd, cpu_type, cpu_subtype);
{
bfd_mach_o_load_command *cmd;
size_t amt;
+ ufile_ptr filesize = bfd_get_file_size (abfd);
+
+ if (filesize == 0)
+ filesize = (ufile_ptr) -1;
mdata->first_command = NULL;
mdata->last_command = NULL;
+ if (header->ncmds > (filesize - hdrsize) / BFD_MACH_O_LC_SIZE)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return false;
+ }
if (_bfd_mul_overflow (header->ncmds,
sizeof (bfd_mach_o_load_command), &amt))
{
bfd_set_error (bfd_error_file_too_big);
- return FALSE;
+ return false;
}
cmd = bfd_alloc (abfd, amt);
if (cmd == NULL)
- return FALSE;
+ return false;
for (i = 0; i < header->ncmds; i++)
{
cur->offset = prev->offset + prev->len;
}
- if (!bfd_mach_o_read_command (abfd, cur))
- return FALSE;
+ if (!bfd_mach_o_read_command (abfd, cur, filesize))
+ return false;
}
}
/* Sections should be flatten before scanning start address. */
if (!bfd_mach_o_flatten_sections (abfd))
- return FALSE;
+ return false;
if (!bfd_mach_o_scan_start_address (abfd))
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
-bfd_boolean
+bool
bfd_mach_o_mkobject_init (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = NULL;
mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
if (mdata == NULL)
- return FALSE;
+ return false;
abfd->tdata.mach_o_data = mdata;
mdata->header.magic = 0;
mdata->sections = NULL;
mdata->dyn_reloc_cache = NULL;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
bfd_mach_o_gen_mkobject (bfd *abfd)
{
bfd_mach_o_data_struct *mdata;
if (!bfd_mach_o_mkobject_init (abfd))
- return FALSE;
+ return false;
mdata = bfd_mach_o_get_data (abfd);
mdata->header.magic = BFD_MACH_O_MH_MAGIC;
mdata->header.byteorder = abfd->xvec->byteorder;
mdata->header.version = 1;
- return TRUE;
+ return true;
}
-const bfd_target *
+bfd_cleanup
bfd_mach_o_header_p (bfd *abfd,
file_ptr hdr_off,
bfd_mach_o_filetype file_type,
if (!bfd_mach_o_scan (abfd, &header, mdata))
goto wrong;
- return abfd->xvec;
+ return _bfd_no_cleanup;
wrong:
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
-static const bfd_target *
+static bfd_cleanup
bfd_mach_o_gen_object_p (bfd *abfd)
{
return bfd_mach_o_header_p (abfd, 0, 0, 0);
}
-static const bfd_target *
+static bfd_cleanup
bfd_mach_o_gen_core_p (bfd *abfd)
{
return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
mach_o_fat_archentry *archentries;
} mach_o_fat_data_struct;
-const bfd_target *
+bfd_cleanup
bfd_mach_o_fat_archive_p (bfd *abfd)
{
mach_o_fat_data_struct *adata = NULL;
abfd->tdata.mach_o_fat_data = adata;
- return abfd->xvec;
+ return _bfd_no_cleanup;
error:
if (adata != NULL)
ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
Set arelt_data and origin fields too. */
-static bfd_boolean
+static bool
bfd_mach_o_fat_member_init (bfd *abfd,
enum bfd_architecture arch_type,
unsigned long arch_subtype,
struct areltdata *areltdata;
/* Create the member filename. Use ARCH_NAME. */
const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
- char *filename;
+ const char *filename;
if (ap)
{
/* Use the architecture name if known. */
- filename = bfd_strdup (ap->printable_name);
- if (filename == NULL)
- return FALSE;
+ filename = bfd_set_filename (abfd, ap->printable_name);
}
else
{
/* Forge a uniq id. */
- const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
- filename = bfd_malloc (namelen);
- if (filename == NULL)
- return FALSE;
- snprintf (filename, namelen, "0x%lx-0x%lx",
+ char buf[2 + 8 + 1 + 2 + 8 + 1];
+ snprintf (buf, sizeof (buf), "0x%lx-0x%lx",
entry->cputype, entry->cpusubtype);
+ filename = bfd_set_filename (abfd, buf);
}
- bfd_set_filename (abfd, filename);
+ if (!filename)
+ return false;
areltdata = bfd_zmalloc (sizeof (struct areltdata));
if (areltdata == NULL)
- return FALSE;
+ return false;
areltdata->parsed_size = entry->size;
abfd->arelt_data = areltdata;
abfd->iostream = NULL;
abfd->origin = entry->offset;
- return TRUE;
+ return true;
}
bfd *
return NULL;
}
-static bfd_boolean
+static bool
bfd_mach_o_fat_close_and_cleanup (bfd *abfd)
{
_bfd_unlink_from_archive_parent (abfd);
- return TRUE;
+ return true;
}
int
{
unsigned long val;
- val = *((unsigned long *) (buf + size - offset));
+ val = bfd_get_32(abfd, buf + size - offset);
+
if (! found_nonnull)
{
if (val != 0)
bfd_mach_o_load_command *uuid_cmd = NULL;
int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
if (ncmd != 1 || uuid_cmd == NULL)
- return FALSE;
+ return false;
return &uuid_cmd->command.uuid;
}
/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
-static bfd_boolean
+static bool
bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
{
bfd_mach_o_uuid_command *dsym_uuid_cmd;
BFD_ASSERT (uuid_cmd);
if (!bfd_check_format (abfd, bfd_object))
- return FALSE;
+ return false;
if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
|| bfd_mach_o_get_data (abfd) == NULL
|| bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
- return FALSE;
+ return false;
dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
if (dsym_uuid_cmd == NULL)
- return FALSE;
+ return false;
if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
sizeof (uuid_cmd->uuid)) != 0)
- return FALSE;
+ return false;
- return TRUE;
+ return true;
}
/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
base_bfd = abfd->my_archive;
/* BFD may have been opened from a stream. */
- if (base_bfd->filename == NULL)
+ if (bfd_get_filename (base_bfd) == NULL)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
}
- base_basename = lbasename (base_bfd->filename);
+ base_basename = lbasename (bfd_get_filename (base_bfd));
uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
if (uuid_cmd == NULL)
It seems apple's GDB checks all files in the dSYM bundle directory.
http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
*/
- dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
+ dsym_filename = (char *)bfd_malloc (strlen (bfd_get_filename (base_bfd))
+ strlen (dsym_subdir) + 1
+ strlen (base_basename) + 1);
if (dsym_filename == NULL)
return NULL;
sprintf (dsym_filename, "%s%s/%s",
- base_bfd->filename, dsym_subdir, base_basename);
+ bfd_get_filename (base_bfd), dsym_subdir, base_basename);
dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
bfd_get_arch_info (abfd));
return dsym_bfd;
}
-bfd_boolean
+bool
bfd_mach_o_find_nearest_line (bfd *abfd,
asymbol **symbols,
asection *section,
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
if (mdata == NULL)
- return FALSE;
+ return false;
switch (mdata->header.filetype)
{
case BFD_MACH_O_MH_OBJECT:
if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
dwarf_debug_sections, symbols,
&mdata->dwarf2_find_line_info,
- FALSE))
- return FALSE;
+ false))
+ return false;
}
break;
default:
- return FALSE;
+ return false;
}
return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
filename_ptr, functionname_ptr,
&mdata->dwarf2_find_line_info);
}
-bfd_boolean
+bool
bfd_mach_o_close_and_cleanup (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
but it is small, and happens when we are closing down, so it
should not matter too much. */
char *dsym_filename = (char *)(fat_bfd
- ? fat_bfd->filename
- : mdata->dsym_bfd->filename);
+ ? bfd_get_filename (fat_bfd)
+ : bfd_get_filename (mdata->dsym_bfd));
#endif
bfd_close (mdata->dsym_bfd);
mdata->dsym_bfd = NULL;
return _bfd_generic_close_and_cleanup (abfd);
}
-bfd_boolean
+bool
bfd_mach_o_free_cached_info (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
asect->relocation = NULL;
}
- return TRUE;
+ return true;
}
#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
projects / deliverable / binutils-gdb.git / blobdiff