sec_ptr
bfd_make_section_anyway (bfd *abfd, const char *name)
{
struct section_hash_entry *sh;
asection *newsect;
if (abfd->output_has_begun)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
}
sh = section_hash_lookup (&abfd->section_htab, name, TRUE, FALSE);
if (sh == NULL)
return NULL;
newsect = &sh->section;
if (newsect->name != NULL)
{
/* We are making a section of the same name. It can't go in
section_htab without generating a unique section name and
that would be pointless; We don't need to traverse the
hash table. */
newsect = bfd_zalloc (abfd, sizeof (asection));
if (newsect == NULL)
return NULL;
}
newsect->name = name;
return bfd_section_init (abfd, newsect);
}
asymbol *
_bfd_generic_make_empty_symbol (bfd *abfd)
{
bfd_size_type amt = sizeof (asymbol);
asymbol *new_symbol = (asymbol *) bfd_zalloc (abfd, amt);
if (new_symbol)
new_symbol->the_bfd = abfd;
return new_symbol;
}
static bfd_boolean
sh64_elf_new_section_hook (bfd *abfd, asection *sec)
{
struct _sh64_elf_section_data *sdata;
bfd_size_type amt = sizeof (*sdata);
sdata = (struct _sh64_elf_section_data *) bfd_zalloc (abfd, amt);
if (sdata == NULL)
return FALSE;
sec->used_by_bfd = sdata;
return _bfd_elf_new_section_hook (abfd, sec);
}
static struct dwarf1_unit*
alloc_dwarf1_unit (struct dwarf1_debug* stash)
{
bfd_size_type amt = sizeof (struct dwarf1_unit);
struct dwarf1_unit* x = (struct dwarf1_unit *) bfd_zalloc (stash->abfd, amt);
if (x)
{
x->prev = stash->lastUnit;
stash->lastUnit = x;
}
return x;
}
static struct dwarf1_func *
alloc_dwarf1_func (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
{
bfd_size_type amt = sizeof (struct dwarf1_func);
struct dwarf1_func* x = (struct dwarf1_func *) bfd_zalloc (stash->abfd, amt);
if (x)
{
x->prev = aUnit->func_list;
aUnit->func_list = x;
}
return x;
}
bfd_boolean
nlm_mkobject (bfd * abfd)
{
bfd_size_type amt = sizeof (struct nlm_obj_tdata);
nlm_tdata (abfd) = bfd_zalloc (abfd, amt);
if (nlm_tdata (abfd) == NULL)
return FALSE;
if (nlm_architecture (abfd) != bfd_arch_unknown)
bfd_default_set_arch_mach (abfd, nlm_architecture (abfd),
nlm_machine (abfd));
/* Since everything is done at close time, do we need any initialization ? */
return TRUE;
}
static bfd_boolean
versados_mkobject (bfd *abfd)
{
if (abfd->tdata.versados_data == NULL)
{
bfd_size_type amt = sizeof (tdata_type);
tdata_type *tdata = bfd_zalloc (abfd, amt);
if (tdata == NULL)
return FALSE;
abfd->tdata.versados_data = tdata;
tdata->symbols = NULL;
VDATA (abfd)->alert = 0x12345678;
}
bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
return TRUE;
}
bfd_boolean
bfd_record_phdr (bfd *abfd,
unsigned long type,
bfd_boolean flags_valid,
flagword flags,
bfd_boolean at_valid,
bfd_vma at,
bfd_boolean includes_filehdr,
bfd_boolean includes_phdrs,
unsigned int count,
asection **secs)
{
struct elf_segment_map *m, **pm;
bfd_size_type amt;
if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
return TRUE;
amt = sizeof (struct elf_segment_map);
amt += ((bfd_size_type) count - 1) * sizeof (asection *);
m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
return FALSE;
m->p_type = type;
m->p_flags = flags;
m->p_paddr = at;
m->p_flags_valid = flags_valid;
m->p_paddr_valid = at_valid;
m->includes_filehdr = includes_filehdr;
m->includes_phdrs = includes_phdrs;
m->count = count;
if (count > 0)
memcpy (m->sections, secs, count * sizeof (asection *));
for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next)
;
*pm = m;
return TRUE;
}
static bfd_boolean
elf_s390_allocate_local_syminfo (bfd *abfd, Elf_Internal_Shdr *symtab_hdr)
{
bfd_size_type size;
size = symtab_hdr->sh_info;
size *= (sizeof (bfd_signed_vma) /* local got */
+ sizeof (struct plt_entry) /* local plt */
+ sizeof(char)); /* local tls type */
elf_local_got_refcounts (abfd) = ((bfd_signed_vma *)
bfd_zalloc (abfd, size));
if (elf_local_got_refcounts (abfd) == NULL)
return FALSE;
elf_s390_local_plt (abfd)
= (struct plt_entry*)(elf_local_got_refcounts (abfd)
+ symtab_hdr->sh_info);
elf_s390_local_got_tls_type (abfd)
= (char *) (elf_s390_local_plt (abfd) + symtab_hdr->sh_info);
return TRUE;
}
static bfd_boolean
aout_adobe_mkobject (bfd *abfd)
{
struct bout_data_struct *rawptr;
bfd_size_type amt = sizeof (struct bout_data_struct);
rawptr = bfd_zalloc (abfd, amt);
if (rawptr == NULL)
return FALSE;
abfd->tdata.bout_data = rawptr;
exec_hdr (abfd) = &rawptr->e;
adata (abfd).reloc_entry_size = sizeof (struct reloc_std_external);
adata (abfd).symbol_entry_size = sizeof (struct external_nlist);
adata (abfd).page_size = 1; /* Not applicable. */
adata (abfd).segment_size = 1; /* Not applicable. */
adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
return TRUE;
}
/* We permute the segment_map to get BFD to do the file layout we want:
The first non-executable PT_LOAD segment appears first in the file
and contains the ELF file header and phdrs. */
bfd_boolean
nacl_modify_segment_map (bfd *abfd, struct bfd_link_info *info)
{
const struct elf_backend_data *const bed = get_elf_backend_data (abfd);
struct elf_segment_map **m = &elf_seg_map (abfd);
struct elf_segment_map **first_load = NULL;
struct elf_segment_map **last_load = NULL;
bfd_boolean moved_headers = FALSE;
int sizeof_headers;
if (info != NULL && info->user_phdrs)
/* The linker script used PHDRS explicitly, so don't change what the
user asked for. */
return TRUE;
if (info != NULL)
/* We're doing linking, so evalute SIZEOF_HEADERS as in a linker script. */
sizeof_headers = bfd_sizeof_headers (abfd, info);
else
{
/* We're not doing linking, so this is objcopy or suchlike.
We just need to collect the size of the existing headers. */
struct elf_segment_map *seg;
sizeof_headers = bed->s->sizeof_ehdr;
for (seg = *m; seg != NULL; seg = seg->next)
sizeof_headers += bed->s->sizeof_phdr;
}
while (*m != NULL)
{
struct elf_segment_map *seg = *m;
if (seg->p_type == PT_LOAD)
{
bfd_boolean executable = segment_executable (seg);
if (executable
&& seg->count > 0
&& seg->sections[0]->vma % bed->minpagesize == 0)
{
asection *lastsec = seg->sections[seg->count - 1];
bfd_vma end = lastsec->vma + lastsec->size;
if (end % bed->minpagesize != 0)
{
/* This is an executable segment that starts on a page
boundary but does not end on a page boundary. Fill
it out to a whole page with code fill (the tail of
the segment will not be within any section). Thus
the entire code segment can be mapped from the file
as whole pages and that mapping will contain only
valid instructions.
To accomplish this, we must fake out the code in
assign_file_positions_for_load_sections (elf.c) so
that it advances past the rest of the final page,
rather than trying to put the next (unaligned, or
unallocated) section. We do this by appending a
dummy section record to this element in the segment
map. No such output section ever actually exists,
but this gets the layout logic to advance the file
positions past this partial page. Since we are
lying to BFD like this, nothing will ever know to
write the section contents. So we do that by hand
after the fact, in nacl_final_write_processing, below. */
struct elf_segment_map *newseg;
asection *sec;
struct bfd_elf_section_data *secdata;
BFD_ASSERT (!seg->p_size_valid);
secdata = bfd_zalloc (abfd, sizeof *secdata);
if (secdata == NULL)
return FALSE;
sec = bfd_zalloc (abfd, sizeof *sec);
if (sec == NULL)
return FALSE;
/* Fill in only the fields that actually affect the logic
in assign_file_positions_for_load_sections. */
sec->vma = end;
sec->lma = lastsec->lma + lastsec->size;
sec->size = bed->minpagesize - (end % bed->minpagesize);
sec->flags = (SEC_ALLOC | SEC_LOAD
| SEC_READONLY | SEC_CODE | SEC_LINKER_CREATED);
sec->used_by_bfd = secdata;
secdata->this_hdr.sh_type = SHT_PROGBITS;
secdata->this_hdr.sh_flags = SHF_ALLOC | SHF_EXECINSTR;
secdata->this_hdr.sh_addr = sec->vma;
secdata->this_hdr.sh_size = sec->size;
newseg = bfd_alloc (abfd,
sizeof *newseg + ((seg->count + 1)
* sizeof (asection *)));
if (newseg == NULL)
return FALSE;
memcpy (newseg, seg,
sizeof *newseg + (seg->count * sizeof (asection *)));
newseg->sections[newseg->count++] = sec;
*m = seg = newseg;
}
}
/* First, we're just finding the earliest PT_LOAD.
By the normal rules, this will be the lowest-addressed one.
We only have anything interesting to do if it's executable. */
last_load = m;
if (first_load == NULL)
{
if (!executable)
goto next;
first_load = m;
}
/* Now that we've noted the first PT_LOAD, we're looking for
the first non-executable PT_LOAD with a nonempty p_filesz. */
else if (!moved_headers
&& segment_eligible_for_headers (seg, bed->minpagesize,
sizeof_headers))
{
/* This is the one we were looking for!
First, clear the flags on previous segments that
say they include the file header and phdrs. */
struct elf_segment_map *prevseg;
for (prevseg = *first_load;
prevseg != seg;
prevseg = prevseg->next)
if (prevseg->p_type == PT_LOAD)
{
prevseg->includes_filehdr = 0;
prevseg->includes_phdrs = 0;
}
/* This segment will include those headers instead. */
seg->includes_filehdr = 1;
seg->includes_phdrs = 1;
moved_headers = TRUE;
}
}
next:
m = &seg->next;
}
if (first_load != last_load && moved_headers)
{
/* Now swap the first and last PT_LOAD segments'
positions in segment_map. */
struct elf_segment_map *first = *first_load;
struct elf_segment_map *last = *last_load;
*first_load = first->next;
first->next = last->next;
last->next = first;
}
return TRUE;
}
static const bfd_target *
netbsd_core_file_p (bfd *abfd)
{
int val;
unsigned i;
file_ptr offset;
asection *asect;
struct core core;
struct coreseg coreseg;
bfd_size_type amt = sizeof core;
val = bfd_bread (&core, amt, abfd);
if (val != sizeof core)
{
/* Too small to be a core file. */
bfd_set_error (bfd_error_wrong_format);
return 0;
}
if (CORE_GETMAGIC (core) != COREMAGIC)
{
bfd_set_error (bfd_error_wrong_format);
return 0;
}
amt = sizeof (struct netbsd_core_struct);
rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
if (rawptr == NULL)
return 0;
rawptr->core = core;
abfd->tdata.netbsd_core_data = rawptr;
offset = core.c_hdrsize;
for (i = 0; i < core.c_nseg; i++)
{
const char *sname;
flagword flags;
if (bfd_seek (abfd, offset, SEEK_SET) != 0)
goto punt;
val = bfd_bread (&coreseg, sizeof coreseg, abfd);
if (val != sizeof coreseg)
{
bfd_set_error (bfd_error_file_truncated);
goto punt;
}
if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
{
bfd_set_error (bfd_error_wrong_format);
goto punt;
}
offset += core.c_seghdrsize;
switch (CORE_GETFLAG (coreseg))
{
case CORE_CPU:
sname = ".reg";
flags = SEC_ALLOC + SEC_HAS_CONTENTS;
break;
case CORE_DATA:
sname = ".data";
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
break;
case CORE_STACK:
sname = ".stack";
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
break;
default:
sname = ".unknown";
flags = SEC_ALLOC + SEC_HAS_CONTENTS;
break;
}
asect = bfd_make_section_anyway_with_flags (abfd, sname, flags);
if (asect == NULL)
goto punt;
asect->size = coreseg.c_size;
asect->vma = coreseg.c_addr;
asect->filepos = offset;
asect->alignment_power = 2;
if (CORE_GETFLAG (coreseg) == CORE_CPU)
{
bfd_size_type wcookie_offset;
switch (CORE_GETMID (core))
{
case M_SPARC_NETBSD:
wcookie_offset = SPARC_WCOOKIE_OFFSET;
break;
case M_SPARC64_OPENBSD:
wcookie_offset = SPARC64_WCOOKIE_OFFSET;
break;
default:
wcookie_offset = 0;
break;
}
if (wcookie_offset > 0 && coreseg.c_size > wcookie_offset)
{
/* Truncate the .reg section. */
asect->size = wcookie_offset;
/* And create the .wcookie section. */
flags = SEC_ALLOC + SEC_HAS_CONTENTS;
asect = bfd_make_section_anyway_with_flags (abfd, ".wcookie",
flags);
if (asect == NULL)
goto punt;
asect->size = coreseg.c_size - wcookie_offset;
asect->vma = 0;
asect->filepos = offset + wcookie_offset;
asect->alignment_power = 2;
}
}
offset += coreseg.c_size;
}
/* Set architecture from machine ID. */
switch (CORE_GETMID (core))
{
case M_ALPHA_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
break;
case M_ARM6_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_3);
break;
case M_X86_64_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
break;
case M_386_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
break;
case M_68K_NETBSD:
case M_68K4K_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
break;
case M_88K_OPENBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
break;
case M_HPPA_OPENBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_hppa, bfd_mach_hppa11);
break;
case M_POWERPC_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_powerpc, bfd_mach_ppc);
break;
case M_SPARC_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
break;
case M_SPARC64_NETBSD:
case M_SPARC64_OPENBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
break;
case M_VAX_NETBSD:
case M_VAX4K_NETBSD:
bfd_default_set_arch_mach (abfd, bfd_arch_vax, 0);
break;
}
/* OK, we believe you. You're a core file (sure, sure). */
return abfd->xvec;
punt:
bfd_release (abfd, abfd->tdata.any);
abfd->tdata.any = NULL;
bfd_section_list_clear (abfd);
return 0;
}
const bfd_target *
rs6000coff_core_p (bfd *abfd)
{
CoreHdr core;
struct stat statbuf;
bfd_size_type size;
char *tmpptr;
/* Values from new and old core structures. */
int c_flag;
file_ptr c_stack, c_regoff, c_loader;
bfd_size_type c_size, c_regsize, c_lsize;
bfd_vma c_stackend;
void *c_regptr;
int proc64;
if (!read_hdr (abfd, &core))
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* This isn't the right handler for 64-bit core files on AIX 5.x. */
if (CORE_NEW (core) && CNEW_IS_CORE_DUMPXX (core))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Copy fields from new or old core structure. */
if (CORE_NEW (core))
{
c_flag = core.new_dump.c_flag;
c_stack = (file_ptr) core.new_dump.c_stack;
c_size = core.new_dump.c_size;
c_stackend = CNEW_STACKORG (core.new_dump) + c_size;
c_lsize = CNEW_LSIZE (core.new_dump);
c_loader = CNEW_LOADER (core.new_dump);
#ifndef BFD64
proc64 = CNEW_PROC64 (core.new_dump);
}
else
{
c_flag = core.old.c_flag;
c_stack = (file_ptr) (ptr_to_uint) core.old.c_stack;
c_size = core.old.c_size;
c_stackend = COLD_STACKEND;
c_lsize = 0x7ffffff;
c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
#endif
proc64 = 0;
}
if (proc64)
{
c_regsize = sizeof (CNEW_CONTEXT64 (core.new_dump));
c_regptr = &CNEW_CONTEXT64 (core.new_dump);
}
else if (CORE_NEW (core))
{
c_regsize = sizeof (CNEW_MSTSAVE (core.new_dump));
c_regptr = &CNEW_MSTSAVE (core.new_dump);
}
#ifndef BFD64
else
{
c_regsize = sizeof (COLD_MSTSAVE (core.old));
c_regptr = &COLD_MSTSAVE (core.old);
}
#endif
c_regoff = (char *) c_regptr - (char *) &core;
if (bfd_stat (abfd, &statbuf) < 0)
{
bfd_set_error (bfd_error_system_call);
return NULL;
}
/* If the core file ulimit is too small, the system will first
omit the data segment, then omit the stack, then decline to
dump core altogether (as far as I know UBLOCK_VALID and LE_VALID
are always set) (this is based on experimentation on AIX 3.2).
Now, the thing is that GDB users will be surprised
if segments just silently don't appear (well, maybe they would
think to check "info files", I don't know).
For the data segment, we have no choice but to keep going if it's
not there, since the default behavior is not to dump it (regardless
of the ulimit, it's based on SA_FULLDUMP). But for the stack segment,
if it's not there, we refuse to have anything to do with this core
file. The usefulness of a core dump without a stack segment is pretty
limited anyway. */
if (!(c_flag & UBLOCK_VALID)
|| !(c_flag & LE_VALID))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
if (!(c_flag & USTACK_VALID))
{
bfd_set_error (bfd_error_file_truncated);
return NULL;
}
/* Don't check the core file size for a full core, AIX 4.1 includes
additional shared library sections in a full core. */
if (!(c_flag & (FULL_CORE | CORE_TRUNC)))
{
/* If the size is wrong, it means we're misinterpreting something. */
if (c_stack + (file_ptr) c_size != statbuf.st_size)
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
}
/* Sanity check on the c_tab field. */
if (!CORE_NEW (core)
&& (
#ifndef BFD64
c_loader < (file_ptr) sizeof core.old
#else
c_loader < (file_ptr) sizeof core.new_dump
#endif
|| c_loader >= statbuf.st_size
|| c_loader >= c_stack))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Issue warning if the core file was truncated during writing. */
if (c_flag & CORE_TRUNC)
_bfd_error_handler (_("%s: warning core file truncated"),
bfd_get_filename (abfd));
/* Allocate core file header. */
#ifndef BFD64
size = CORE_NEW (core) ? sizeof (core.new_dump) : sizeof (core.old);
#else
size = sizeof (core.new_dump);
#endif
tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size);
if (!tmpptr)
return NULL;
/* Copy core file header. */
memcpy (tmpptr, &core, size);
set_tdata (abfd, tmpptr);
/* Set architecture. */
if (CORE_NEW (core))
{
enum bfd_architecture arch;
unsigned long mach;
switch (CNEW_IMPL (core.new_dump))
{
case POWER_RS1:
case POWER_RSC:
case POWER_RS2:
arch = bfd_arch_rs6000;
mach = bfd_mach_rs6k;
break;
default:
arch = bfd_arch_powerpc;
mach = bfd_mach_ppc;
break;
}
bfd_default_set_arch_mach (abfd, arch, mach);
}
/* .stack section. */
if (!make_bfd_asection (abfd, ".stack",
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
c_size, c_stackend - c_size, c_stack))
goto fail;
/* .reg section for all registers. */
if (!make_bfd_asection (abfd, ".reg",
SEC_HAS_CONTENTS,
c_regsize, (bfd_vma) 0, c_regoff))
goto fail;
/* .ldinfo section.
To actually find out how long this section is in this particular
core dump would require going down the whole list of struct ld_info's.
See if we can just fake it. */
if (!make_bfd_asection (abfd, ".ldinfo",
SEC_HAS_CONTENTS,
c_lsize, (bfd_vma) 0, c_loader))
goto fail;
#ifndef CORE_VERSION_1
/* .data section if present.
AIX 3 dumps the complete data section and sets FULL_CORE if the
ulimit is large enough, otherwise the data section is omitted.
AIX 4 sets FULL_CORE even if the core file is truncated, we have
to examine core.c_datasize below to find out the actual size of
the .data section. */
if (c_flag & FULL_CORE)
{
if (!make_bfd_asection (abfd, ".data",
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
(bfd_size_type) core.old.c_u.u_dsize,
(bfd_vma)
CDATA_ADDR (core.old.c_u.u_dsize),
c_stack + c_size))
goto fail;
}
#endif
#ifdef CORE_VERSION_1
/* AIX 4 adds data sections from loaded objects to the core file,
which can be found by examining ldinfo, and anonymously mmapped
regions. */
{
LdInfo ldinfo;
bfd_size_type ldi_datasize;
file_ptr ldi_core;
uint ldi_next;
bfd_vma ldi_dataorg;
bfd_vma core_dataorg;
/* Fields from new and old core structures. */
bfd_size_type c_datasize, c_vmregions;
file_ptr c_data, c_vmm;
if (CORE_NEW (core))
{
c_datasize = CNEW_DATASIZE (core.new_dump);
c_data = (file_ptr) core.new_dump.c_data;
c_vmregions = core.new_dump.c_vmregions;
c_vmm = (file_ptr) core.new_dump.c_vmm;
}
#ifndef BFD64
else
{
c_datasize = core.old.c_datasize;
c_data = (file_ptr) (ptr_to_uint) core.old.c_data;
c_vmregions = core.old.c_vmregions;
c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm;
}
#endif
/* .data section from executable. */
if (c_datasize)
{
/* If Large Memory Model is used, then the .data segment should start from
BDATAORG which has been defined in the system header files. */
if (c_flag & CORE_BIGDATA)
core_dataorg = BDATAORG;
else
core_dataorg = CDATA_ADDR (c_datasize);
if (!make_bfd_asection (abfd, ".data",
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
c_datasize,
(bfd_vma) core_dataorg,
c_data))
goto fail;
}
/* .data sections from loaded objects. */
if (proc64)
size = (unsigned long) ((LdInfo *) 0)->l64.ldinfo_filename;
else
size = (unsigned long) ((LdInfo *) 0)->l32.ldinfo_filename;
while (1)
{
if (bfd_seek (abfd, c_loader, SEEK_SET) != 0)
goto fail;
if (bfd_bread (&ldinfo, size, abfd) != size)
goto fail;
if (proc64)
{
ldi_core = ldinfo.l64.ldinfo_core;
ldi_datasize = ldinfo.l64.ldinfo_datasize;
ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg;
ldi_next = ldinfo.l64.ldinfo_next;
}
else
{
ldi_core = ldinfo.l32.ldinfo_core;
ldi_datasize = ldinfo.l32.ldinfo_datasize;
ldi_dataorg = (bfd_vma) (ptr_to_uint) ldinfo.l32.ldinfo_dataorg;
ldi_next = ldinfo.l32.ldinfo_next;
}
if (ldi_core)
if (!make_bfd_asection (abfd, ".data",
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
ldi_datasize, ldi_dataorg, ldi_core))
goto fail;
if (ldi_next == 0)
break;
c_loader += ldi_next;
}
/* .vmdata sections from anonymously mmapped regions. */
if (c_vmregions)
{
bfd_size_type i;
if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0)
goto fail;
for (i = 0; i < c_vmregions; i++)
{
VmInfo vminfo;
bfd_size_type vminfo_size;
file_ptr vminfo_offset;
bfd_vma vminfo_addr;
#ifndef BFD64
size = CORE_NEW (core) ? sizeof (vminfo.new_dump) : sizeof (vminfo.old);
#else
size = sizeof (vminfo.new_dump);
#endif
if (bfd_bread (&vminfo, size, abfd) != size)
goto fail;
if (CORE_NEW (core))
{
vminfo_addr = (bfd_vma) vminfo.new_dump.vminfo_addr;
vminfo_size = vminfo.new_dump.vminfo_size;
vminfo_offset = vminfo.new_dump.vminfo_offset;
}
#ifndef BFD64
else
{
vminfo_addr = (bfd_vma) (ptr_to_uint) vminfo.old.vminfo_addr;
vminfo_size = vminfo.old.vminfo_size;
vminfo_offset = vminfo.old.vminfo_offset;
}
#endif
if (vminfo_offset)
if (!make_bfd_asection (abfd, ".vmdata",
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
vminfo_size, vminfo_addr,
vminfo_offset))
goto fail;
}
}
}
#endif
return abfd->xvec; /* This is garbage for now. */
fail:
bfd_release (abfd, abfd->tdata.any);
abfd->tdata.any = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
bfd_boolean
bfd_elf64_archive_slurp_armap (bfd *abfd)
{
struct artdata *ardata = bfd_ardata (abfd);
char nextname[17];
bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
struct areltdata *mapdata;
bfd_byte int_buf[8];
char *stringbase;
char *stringend;
bfd_byte *raw_armap = NULL;
carsym *carsyms;
bfd_size_type amt;
ardata->symdefs = NULL;
/* Get the name of the first element. */
i = bfd_bread (nextname, 16, abfd);
if (i == 0)
return TRUE;
if (i != 16)
return FALSE;
if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
return FALSE;
/* Archives with traditional armaps are still permitted. */
if (CONST_STRNEQ (nextname, "/ "))
return bfd_slurp_armap (abfd);
if (! CONST_STRNEQ (nextname, "/SYM64/ "))
{
bfd_has_map (abfd) = FALSE;
return TRUE;
}
mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
if (mapdata == NULL)
return FALSE;
parsed_size = mapdata->parsed_size;
free (mapdata);
if (bfd_bread (int_buf, 8, abfd) != 8)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_malformed_archive);
return FALSE;
}
nsymz = bfd_getb64 (int_buf);
stringsize = parsed_size - 8 * nsymz - 8;
carsym_size = nsymz * sizeof (carsym);
ptrsize = 8 * nsymz;
amt = carsym_size + stringsize + 1;
if (carsym_size < nsymz || ptrsize < nsymz || amt < nsymz)
{
bfd_set_error (bfd_error_malformed_archive);
return FALSE;
}
ardata->symdefs = (struct carsym *) bfd_zalloc (abfd, amt);
if (ardata->symdefs == NULL)
return FALSE;
carsyms = ardata->symdefs;
stringbase = ((char *) ardata->symdefs) + carsym_size;
stringbase[stringsize] = 0;
stringend = stringbase + stringsize;
raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize);
if (raw_armap == NULL)
goto release_symdefs;
if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
|| bfd_bread (stringbase, stringsize, abfd) != stringsize)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_malformed_archive);
goto release_raw_armap;
}
for (i = 0; i < nsymz; i++)
{
carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
carsyms->name = stringbase;
if (stringbase < stringend)
stringbase += strlen (stringbase) + 1;
++carsyms;
}
*stringbase = '\0';
ardata->symdef_count = nsymz;
ardata->first_file_filepos = bfd_tell (abfd);
/* Pad to an even boundary if you have to. */
ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
bfd_has_map (abfd) = TRUE;
bfd_release (abfd, raw_armap);
return TRUE;
release_raw_armap:
bfd_release (abfd, raw_armap);
release_symdefs:
bfd_release (abfd, ardata->symdefs);
return FALSE;
}
const bfd_target *
xcoff64_core_p (bfd *abfd)
{
enum bfd_architecture arch;
unsigned long mach;
struct core_dumpxx core, *new_core_hdr;
struct stat statbuf;
asection *sec;
struct __ld_info64 ldinfo;
bfd_vma ld_offset;
bfd_size_type i;
struct vm_infox vminfo;
const bfd_target *return_value = NULL;
flagword flags;
/* Get the header. */
if (bfd_seek (abfd, 0, SEEK_SET) != 0)
goto xcoff64_core_p_error;
if (sizeof (struct core_dumpxx)
!= bfd_bread (&core, sizeof (struct core_dumpxx), abfd))
goto xcoff64_core_p_error;
if (bfd_stat (abfd, &statbuf) < 0)
goto xcoff64_core_p_error;
/* Sanity checks
c_flag has CORE_VERSION_1, Aix 4+
c_entries = 0 for Aix 4.3+
IS_PROC64 is a macro defined in procinfo.h, test for 64 bit process.
We will still be confused if a Aix 4.3 64 bit core file is
copied over to a Aix 5 machine.
Check file header offsets
See rs6000-core.c for comment on size of core
If there isn't enough of a real core file, bail. */
if ((CORE_VERSION_1 != (core.c_flag & CORE_VERSION_1))
|| (0 != core.c_entries)
|| (! (IS_PROC64 (&core.c_u.U_proc)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_fdsinfox)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_loader)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_loader + core.c_lsize)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_thr)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_segregion)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_stack)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_stack + core.c_size)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_data)))
|| ((CHECK_FILE_OFFSET (statbuf, core.c_data + core.c_datasize)))
|| (! (core.c_flag & UBLOCK_VALID))
|| (! (core.c_flag & LE_VALID)))
goto xcoff64_core_p_error;
/* Check for truncated stack or general truncating. */
if ((! (core.c_flag & USTACK_VALID))
|| (core.c_flag & CORE_TRUNC))
{
bfd_set_error (bfd_error_file_truncated);
return return_value;
}
new_core_hdr = bfd_zalloc (abfd, sizeof (struct core_dumpxx));
if (NULL == new_core_hdr)
return return_value;
memcpy (new_core_hdr, &core, sizeof (struct core_dumpxx));
/* The core_hdr() macro is no longer used here because it would
expand to code relying on gcc's cast-as-lvalue extension,
which was removed in gcc 4.0. */
abfd->tdata.any = new_core_hdr;
/* .stack section. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
sec = bfd_make_section_anyway_with_flags (abfd, ".stack", flags);
if (NULL == sec)
return return_value;
sec->size = core.c_size;
sec->vma = core.c_stackorg;
sec->filepos = core.c_stack;
/* .reg section for all registers. */
flags = SEC_HAS_CONTENTS | SEC_IN_MEMORY;
sec = bfd_make_section_anyway_with_flags (abfd, ".reg", flags);
if (NULL == sec)
return return_value;
sec->size = sizeof (struct __context64);
sec->vma = 0;
sec->filepos = 0;
sec->contents = (bfd_byte *)&new_core_hdr->c_flt.r64;
/* .ldinfo section.
To actually find out how long this section is in this particular
core dump would require going down the whole list of struct
ld_info's. See if we can just fake it. */
flags = SEC_HAS_CONTENTS;
sec = bfd_make_section_anyway_with_flags (abfd, ".ldinfo", flags);
if (NULL == sec)
return return_value;
sec->size = core.c_lsize;
sec->vma = 0;
sec->filepos = core.c_loader;
/* AIX 4 adds data sections from loaded objects to the core file,
which can be found by examining ldinfo, and anonymously mmapped
regions. */
/* .data section from executable. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
sec = bfd_make_section_anyway_with_flags (abfd, ".data", flags);
if (NULL == sec)
return return_value;
sec->size = core.c_datasize;
sec->vma = core.c_dataorg;
sec->filepos = core.c_data;
/* .data sections from loaded objects. */
ld_offset = core.c_loader;
while (1)
{
if (bfd_seek (abfd, ld_offset, SEEK_SET) != 0)
return return_value;
if (sizeof (struct __ld_info64) !=
bfd_bread (&ldinfo, sizeof (struct __ld_info64), abfd))
return return_value;
if (ldinfo.ldinfo_core)
{
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
sec = bfd_make_section_anyway_with_flags (abfd, ".data", flags);
if (NULL == sec)
return return_value;
sec->size = ldinfo.ldinfo_datasize;
sec->vma = ldinfo.ldinfo_dataorg;
sec->filepos = ldinfo.ldinfo_core;
}
if (0 == ldinfo.ldinfo_next)
break;
ld_offset += ldinfo.ldinfo_next;
}
/* .vmdata sections from anonymously mmapped regions. */
if (core.c_vmregions)
{
if (bfd_seek (abfd, core.c_vmm, SEEK_SET) != 0)
return return_value;
for (i = 0; i < core.c_vmregions; i++)
if (sizeof (struct vm_infox) !=
bfd_bread (&vminfo, sizeof (struct vm_infox), abfd))
return return_value;
if (vminfo.vminfo_offset)
{
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
sec = bfd_make_section_anyway_with_flags (abfd, ".vmdata", flags);
if (NULL == sec)
return return_value;
sec->size = vminfo.vminfo_size;
sec->vma = vminfo.vminfo_addr;
sec->filepos = vminfo.vminfo_offset;
}
}
/* Set the architecture and machine. */
arch = DEFAULT_ARCHITECTURE;
mach = DEFAULT_MACHINE;
bfd_default_set_arch_mach (abfd, arch, mach);
return_value = (bfd_target *) abfd->xvec; /* This is garbage for now. */
xcoff64_core_p_error:
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return return_value;
}
static bfd_boolean
wasm_scan (bfd *abfd)
{
bfd_boolean error = FALSE;
/* Fake VMAs for now. Choose 0x80000000 as base to avoid clashes
with actual data addresses. */
bfd_vma vma = 0x80000000;
int section_code;
unsigned int bytes_read;
char *name = NULL;
asection *bfdsec;
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
goto error_return;
if (! wasm_read_header (abfd, &error))
goto error_return;
while ((section_code = wasm_read_byte (abfd, &error)) != EOF)
{
if (section_code != 0)
{
const char *sname = wasm_section_code_to_name (section_code);
if (! sname)
goto error_return;
name = strdup (sname);
bfdsec = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS);
if (bfdsec == NULL)
goto error_return;
name = NULL;
bfdsec->vma = vma;
bfdsec->lma = vma;
bfdsec->size = wasm_read_leb128 (abfd, &error, &bytes_read, FALSE);
if (error)
goto error_return;
bfdsec->filepos = bfd_tell (abfd);
bfdsec->alignment_power = 0;
}
else
{
bfd_vma payload_len;
file_ptr section_start;
bfd_vma namelen;
char *prefix = WASM_SECTION_PREFIX;
char *p;
int ret;
payload_len = wasm_read_leb128 (abfd, &error, &bytes_read, FALSE);
if (error)
goto error_return;
section_start = bfd_tell (abfd);
namelen = wasm_read_leb128 (abfd, &error, &bytes_read, FALSE);
if (error || namelen > payload_len)
goto error_return;
name = bfd_zmalloc (namelen + strlen (prefix) + 1);
if (! name)
goto error_return;
p = name;
ret = sprintf (p, "%s", prefix);
if (ret < 0 || (bfd_vma) ret != strlen (prefix))
goto error_return;
p += ret;
if (bfd_bread (p, namelen, abfd) != namelen)
goto error_return;
bfdsec = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS);
if (bfdsec == NULL)
goto error_return;
name = NULL;
bfdsec->vma = vma;
bfdsec->lma = vma;
bfdsec->filepos = bfd_tell (abfd);
bfdsec->size = section_start + payload_len - bfdsec->filepos;
bfdsec->alignment_power = 0;
}
if (bfdsec->size != 0)
{
bfdsec->contents = bfd_zalloc (abfd, bfdsec->size);
if (! bfdsec->contents)
goto error_return;
if (bfd_bread (bfdsec->contents, bfdsec->size, abfd) != bfdsec->size)
goto error_return;
}
vma += bfdsec->size;
}
/* Make sure we're at actual EOF. There's no indication in the
WebAssembly format of how long the file is supposed to be. */
if (error)
goto error_return;
return TRUE;
error_return:
if (name)
free (name);
for (bfdsec = abfd->sections; bfdsec; bfdsec = bfdsec->next)
free ((void *) bfdsec->name);
return FALSE;
}
bfd *
_bfd_elf_link_setup_gnu_properties (struct bfd_link_info *info)
{
bfd *abfd, *first_pbfd = NULL;
elf_property_list *list;
asection *sec;
bfd_boolean has_properties = FALSE;
const struct elf_backend_data *bed
= get_elf_backend_data (info->output_bfd);
unsigned int elfclass = bed->s->elfclass;
int elf_machine_code = bed->elf_machine_code;
/* Find the first relocatable ELF input with GNU properties. */
for (abfd = info->input_bfds; abfd != NULL; abfd = abfd->link.next)
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& (abfd->flags & DYNAMIC) == 0
&& elf_properties (abfd) != NULL)
{
has_properties = TRUE;
/* Ignore GNU properties from ELF objects with different machine
code or class. Also skip objects without a GNU_PROPERTY note
section. */
if ((elf_machine_code
== get_elf_backend_data (abfd)->elf_machine_code)
&& (elfclass
== get_elf_backend_data (abfd)->s->elfclass)
&& bfd_get_section_by_name (abfd,
NOTE_GNU_PROPERTY_SECTION_NAME) != NULL
)
{
/* Keep .note.gnu.property section in FIRST_PBFD. */
first_pbfd = abfd;
break;
}
}
/* Do nothing if there is no .note.gnu.property section. */
if (!has_properties)
return NULL;
/* Merge .note.gnu.property sections. */
for (abfd = info->input_bfds; abfd != NULL; abfd = abfd->link.next)
if (abfd != first_pbfd && (abfd->flags & DYNAMIC) == 0)
{
elf_property_list *null_ptr = NULL;
elf_property_list **listp = &null_ptr;
/* Merge .note.gnu.property section in relocatable ELF input. */
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
{
list = elf_properties (abfd);
/* Ignore GNU properties from ELF objects with different
machine code. */
if (list != NULL
&& (elf_machine_code
== get_elf_backend_data (abfd)->elf_machine_code))
listp = &elf_properties (abfd);
}
else
list = NULL;
/* Merge properties with FIRST_PBFD. FIRST_PBFD can be NULL
when all properties are from ELF objects with different
machine code or class. */
if (first_pbfd != NULL)
elf_merge_gnu_property_list (info, first_pbfd, listp);
if (list != NULL)
{
/* Discard the .note.gnu.property section in this bfd. */
sec = bfd_get_section_by_name (abfd,
NOTE_GNU_PROPERTY_SECTION_NAME);
if (sec != NULL)
sec->output_section = bfd_abs_section_ptr;
}
}
/* Rewrite .note.gnu.property section so that GNU properties are
always sorted by type even if input GNU properties aren't sorted. */
if (first_pbfd != NULL)
{
bfd_size_type size;
bfd_byte *contents;
unsigned int align_size = elfclass == ELFCLASS64 ? 8 : 4;
sec = bfd_get_section_by_name (first_pbfd,
NOTE_GNU_PROPERTY_SECTION_NAME);
BFD_ASSERT (sec != NULL);
/* Update stack size in .note.gnu.property with -z stack-size=N
if N > 0. */
if (info->stacksize > 0)
{
elf_property *p;
bfd_vma stacksize = info->stacksize;
p = _bfd_elf_get_property (first_pbfd, GNU_PROPERTY_STACK_SIZE,
align_size);
if (p->pr_kind == property_unknown)
{
/* Create GNU_PROPERTY_STACK_SIZE. */
p->u.number = stacksize;
p->pr_kind = property_number;
}
else if (stacksize > p->u.number)
p->u.number = stacksize;
}
else if (elf_properties (first_pbfd) == NULL)
{
/* Discard .note.gnu.property section if all properties have
been removed. */
sec->output_section = bfd_abs_section_ptr;
return NULL;
}
/* Fix up GNU properties. */
if (bed->fixup_gnu_properties)
bed->fixup_gnu_properties (info, &elf_properties (first_pbfd));
if (elf_properties (first_pbfd) == NULL)
{
/* Discard .note.gnu.property section if all properties have
been removed. */
sec->output_section = bfd_abs_section_ptr;
return NULL;
}
/* Compute the section size. */
list = elf_properties (first_pbfd);
size = elf_get_gnu_property_section_size (list, align_size);
/* Update .note.gnu.property section now. */
sec->size = size;
contents = (bfd_byte *) bfd_zalloc (first_pbfd, size);
elf_write_gnu_properties (first_pbfd, contents, list, size,
align_size);
/* Cache the section contents for elf_link_input_bfd. */
elf_section_data (sec)->this_hdr.contents = contents;
/* If GNU_PROPERTY_NO_COPY_ON_PROTECTED is set, protected data
symbol is defined in the shared object. */
if (elf_has_no_copy_on_protected (first_pbfd))
info->extern_protected_data = FALSE;
}
return first_pbfd;
}
static const bfd_target *
osf_core_core_file_p (bfd *abfd)
{
int val;
int i;
char *secname;
struct core_filehdr core_header;
bfd_size_type amt;
amt = sizeof core_header;
val = bfd_bread (& core_header, amt, abfd);
if (val != sizeof core_header)
return NULL;
if (! CONST_STRNEQ (core_header.magic, "Core"))
return NULL;
core_hdr (abfd) = (struct osf_core_struct *)
bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct));
if (!core_hdr (abfd))
return NULL;
strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
core_signal (abfd) = core_header.signo;
for (i = 0; i < core_header.nscns; i++)
{
struct core_scnhdr core_scnhdr;
flagword flags;
amt = sizeof core_scnhdr;
val = bfd_bread (& core_scnhdr, amt, abfd);
if (val != sizeof core_scnhdr)
break;
/* Skip empty sections. */
if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0)
continue;
switch (core_scnhdr.scntype)
{
case SCNRGN:
secname = ".data";
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
break;
case SCNSTACK:
secname = ".stack";
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
break;
case SCNREGS:
secname = ".reg";
flags = SEC_HAS_CONTENTS;
break;
default:
(*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"),
core_scnhdr.scntype);
continue;
}
if (!make_bfd_asection (abfd, secname, flags,
(bfd_size_type) core_scnhdr.size,
(bfd_vma) core_scnhdr.vaddr,
(file_ptr) core_scnhdr.scnptr))
goto fail;
}
/* OK, we believe you. You're a core file (sure, sure). */
return abfd->xvec;
fail:
bfd_release (abfd, core_hdr (abfd));
core_hdr (abfd) = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
const bfd_target *
lynx_core_file_p (bfd *abfd)
{
int secnum;
struct pssentry pss;
bfd_size_type tcontext_size;
core_st_t *threadp;
int pagesize;
asection *newsect;
bfd_size_type amt;
pagesize = getpagesize (); /* Serious cross-target issue here... This
really needs to come from a system-specific
header file. */
/* Get the pss entry from the core file */
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
return NULL;
amt = sizeof pss;
if (bfd_bread ((void *) &pss, amt, abfd) != amt)
{
/* Too small to be a core file */
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
amt = sizeof (struct lynx_core_struct);
core_hdr (abfd) = (struct lynx_core_struct *) bfd_zalloc (abfd, amt);
if (!core_hdr (abfd))
return NULL;
strncpy (core_command (abfd), pss.pname, PNMLEN + 1);
/* Compute the size of the thread contexts */
tcontext_size = pss.threadcnt * sizeof (core_st_t);
/* Allocate space for the thread contexts */
threadp = (core_st_t *) bfd_alloc (abfd, tcontext_size);
if (!threadp)
goto fail;
/* Save thread contexts */
if (bfd_seek (abfd, (file_ptr) pagesize, SEEK_SET) != 0)
goto fail;
if (bfd_bread ((void *) threadp, tcontext_size, abfd) != tcontext_size)
{
/* Probably too small to be a core file */
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
goto fail;
}
core_signal (abfd) = threadp->currsig;
newsect = make_bfd_asection (abfd, ".stack",
SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
pss.ssize,
pss.slimit,
pagesize + tcontext_size);
if (!newsect)
goto fail;
newsect = make_bfd_asection (abfd, ".data",
SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
pss.data_len + pss.bss_len,
pss.data_start,
pagesize + tcontext_size + pss.ssize
#if defined (SPARC) || defined (__SPARC__)
/* SPARC Lynx seems to start dumping
the .data section at a page
boundary. It's OK to check a
#define like SPARC here because this
file can only be compiled on a Lynx
host. */
+ pss.data_start % pagesize
#endif
);
if (!newsect)
goto fail;
/* And, now for the .reg/XXX pseudo sections. Each thread has it's own
.reg/XXX section, where XXX is the thread id (without leading zeros). The
currently running thread (at the time of the core dump) also has an alias
called `.reg' (just to keep GDB happy). Note that we use `.reg/XXX' as
opposed to `.regXXX' because GDB expects that .reg2 will be the floating-
point registers. */
newsect = make_bfd_asection (abfd, ".reg",
SEC_HAS_CONTENTS,
sizeof (core_st_t),
0,
pagesize);
if (!newsect)
goto fail;
for (secnum = 0; secnum < pss.threadcnt; secnum++)
{
char secname[100];
sprintf (secname, ".reg/%d", BUILDPID (0, threadp[secnum].tid));
newsect = make_bfd_asection (abfd, secname,
SEC_HAS_CONTENTS,
sizeof (core_st_t),
0,
pagesize + secnum * sizeof (core_st_t));
if (!newsect)
goto fail;
}
return abfd->xvec;
fail:
bfd_release (abfd, core_hdr (abfd));
core_hdr (abfd) = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
static bfd_boolean
oasys_slurp_section_data (bfd *const abfd)
{
oasys_record_union_type record;
oasys_data_type *data = OASYS_DATA (abfd);
bfd_boolean loop = TRUE;
oasys_per_section_type *per;
asection *s;
bfd_size_type amt;
/* See if the data has been slurped already. */
for (s = abfd->sections; s != NULL; s = s->next)
{
per = oasys_per_section (s);
if (per->initialized)
return TRUE;
}
if (data->first_data_record == 0)
return TRUE;
if (bfd_seek (abfd, data->first_data_record, SEEK_SET) != 0)
return FALSE;
while (loop)
{
if (! oasys_read_record (abfd, &record))
return FALSE;
switch (record.header.type)
{
case oasys_record_is_header_enum:
break;
case oasys_record_is_data_enum:
{
bfd_byte *src = record.data.data;
bfd_byte *end_src = ((bfd_byte *) & record) + record.header.length;
bfd_byte *dst_ptr;
bfd_byte *dst_base_ptr;
unsigned int relbit;
unsigned int count;
asection *section =
data->sections[record.data.relb & RELOCATION_SECT_BITS];
bfd_vma dst_offset;
per = oasys_per_section (section);
if (! per->initialized)
{
arelent **relpp;
per->data = bfd_zalloc (abfd, section->size);
if (!per->data)
return FALSE;
relpp = §ion->relocation;
per->reloc_tail_ptr = (oasys_reloc_type **) relpp;
per->had_vma = FALSE;
per->initialized = TRUE;
section->reloc_count = 0;
section->flags = SEC_ALLOC;
}
dst_offset = H_GET_32 (abfd, record.data.addr);
if (! per->had_vma)
{
/* Take the first vma we see as the base. */
section->vma = dst_offset;
per->had_vma = TRUE;
}
dst_offset -= section->vma;
dst_base_ptr = oasys_per_section (section)->data;
dst_ptr = oasys_per_section (section)->data +
dst_offset;
if (src < end_src)
section->flags |= SEC_LOAD | SEC_HAS_CONTENTS;
while (src < end_src)
{
unsigned char mod_byte = *src++;
size_t gap = end_src - src;
count = 8;
if (mod_byte == 0 && gap >= 8)
{
dst_ptr[0] = src[0];
dst_ptr[1] = src[1];
dst_ptr[2] = src[2];
dst_ptr[3] = src[3];
dst_ptr[4] = src[4];
dst_ptr[5] = src[5];
dst_ptr[6] = src[6];
dst_ptr[7] = src[7];
dst_ptr += 8;
src += 8;
}
else
{
for (relbit = 1; count-- != 0 && src < end_src; relbit <<= 1)
{
if (relbit & mod_byte)
{
unsigned char reloc = *src;
/* This item needs to be relocated. */
switch (reloc & RELOCATION_TYPE_BITS)
{
case RELOCATION_TYPE_ABS:
break;
case RELOCATION_TYPE_REL:
{
/* Relocate the item relative to the section. */
oasys_reloc_type *r;
amt = sizeof (oasys_reloc_type);
r = bfd_alloc (abfd, amt);
if (!r)
return FALSE;
*(per->reloc_tail_ptr) = r;
per->reloc_tail_ptr = &r->next;
r->next = NULL;
/* Reference to undefined symbol. */
src++;
/* There is no symbol. */
r->symbol = 0;
/* Work out the howto. */
abort ();
r->relent.address = dst_ptr - dst_base_ptr;
r->relent.howto = &howto_table[reloc >> 6];
r->relent.sym_ptr_ptr = NULL;
section->reloc_count++;
/* Fake up the data to look like
it's got the -ve pc in it, this
makes it much easier to convert
into other formats. This is done
by hitting the addend. */
if (r->relent.howto->pc_relative)
r->relent.addend -= dst_ptr - dst_base_ptr;
}
break;
case RELOCATION_TYPE_UND:
{
oasys_reloc_type *r;
amt = sizeof (oasys_reloc_type);
r = bfd_alloc (abfd, amt);
if (!r)
return FALSE;
*(per->reloc_tail_ptr) = r;
per->reloc_tail_ptr = &r->next;
r->next = NULL;
/* Reference to undefined symbol. */
src++;
/* Get symbol number. */
r->symbol = (src[0] << 8) | src[1];
/* Work out the howto. */
abort ();
r->relent.addend = 0;
r->relent.address = dst_ptr - dst_base_ptr;
r->relent.howto = &howto_table[reloc >> 6];
r->relent.sym_ptr_ptr = NULL;
section->reloc_count++;
src += 2;
/* Fake up the data to look like
it's got the -ve pc in it, this
makes it much easier to convert
into other formats. This is done
by hitting the addend. */
if (r->relent.howto->pc_relative)
r->relent.addend -= dst_ptr - dst_base_ptr;
}
break;
case RELOCATION_TYPE_COM:
BFD_FAIL ();
}
}
*dst_ptr++ = *src++;
}
}
}
}
break;
case oasys_record_is_local_enum:
case oasys_record_is_symbol_enum:
case oasys_record_is_section_enum:
break;
default:
loop = FALSE;
}
}
static const bfd_target *
hppabsd_core_core_file_p (bfd *abfd)
{
int val;
struct user u;
struct hppabsd_core_struct *coredata;
int clicksz;
/* Try to read in the u-area. We will need information from this
to know how to grok the rest of the core structures. */
val = bfd_bread ((void *) &u, (bfd_size_type) sizeof u, abfd);
if (val != sizeof u)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Get the page size out of the u structure. This will be different
for PA 1.0 machines and PA 1.1 machines. Yuk! */
clicksz = u.u_pcb.pcb_pgsz;
/* clicksz must be a power of two >= 2k. */
if (clicksz < 0x800
|| clicksz != (clicksz & -clicksz))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Sanity checks. Make sure the size of the core file matches the
the size computed from information within the core itself. */
{
struct stat statbuf;
if (bfd_stat (abfd, &statbuf) < 0)
return NULL;
if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
{
bfd_set_error (bfd_error_file_truncated);
return NULL;
}
if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size)
{
/* The file is too big. Maybe it's not a core file
or we otherwise have bad values for u_dsize and u_ssize). */
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
}
/* OK, we believe you. You're a core file (sure, sure). */
coredata = (struct hppabsd_core_struct *)
bfd_zalloc (abfd, (bfd_size_type) sizeof (struct hppabsd_core_struct));
if (!coredata)
return NULL;
/* Make the core data and available via the tdata part of the BFD. */
abfd->tdata.hppabsd_core_data = coredata;
/* Create the sections. */
core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
SEC_ALLOC + SEC_HAS_CONTENTS,
clicksz * u.u_ssize,
NBPG * (USIZE + KSTAKSIZE)
+ clicksz * u.u_dsize, 2);
if (core_stacksec (abfd) == NULL)
goto fail;
core_stacksec (abfd)->vma = USRSTACK;
core_datasec (abfd) = make_bfd_asection (abfd, ".data",
SEC_ALLOC + SEC_LOAD
+ SEC_HAS_CONTENTS,
clicksz * u.u_dsize,
NBPG * (USIZE + KSTAKSIZE), 2);
if (core_datasec (abfd) == NULL)
goto fail;
core_datasec (abfd)->vma = UDATASEG;
core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
SEC_HAS_CONTENTS,
KSTAKSIZE * NBPG,
NBPG * USIZE, 2);
if (core_regsec (abfd) == NULL)
goto fail;
core_regsec (abfd)->vma = 0;
strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1);
core_signal (abfd) = u.u_code;
return abfd->xvec;
fail:
bfd_release (abfd, abfd->tdata.any);
abfd->tdata.any = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
static const bfd_target *
irix_core_core_file_p (bfd *abfd)
{
int val;
struct coreout coreout;
struct idesc *idg, *idf, *ids;
bfd_size_type amt;
val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
if (val != sizeof coreout)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return 0;
}
if (coreout.c_version != CORE_VERSION1)
return 0;
/* Have we got a corefile? */
switch (coreout.c_magic)
{
case CORE_MAGIC: break;
#ifdef CORE_MAGIC64
case CORE_MAGIC64: break;
#endif
#ifdef CORE_MAGICN32
case CORE_MAGICN32: break;
#endif
default: return 0; /* Un-identifiable or not corefile. */
}
amt = sizeof (struct sgi_core_struct);
core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
if (!core_hdr (abfd))
return NULL;
strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
core_signal (abfd) = coreout.c_sigcause;
if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
goto fail;
/* Process corefile sections. */
#ifdef CORE_MAGIC64
if (coreout.c_magic == (int) CORE_MAGIC64)
{
if (! do_sections64 (abfd, & coreout))
goto fail;
}
else
#endif
if (! do_sections (abfd, & coreout))
goto fail;
/* Make sure that the regs are contiguous within the core file. */
idg = &coreout.c_idesc[I_GPREGS];
idf = &coreout.c_idesc[I_FPREGS];
ids = &coreout.c_idesc[I_SPECREGS];
if (idg->i_offset + idg->i_len != idf->i_offset
|| idf->i_offset + idf->i_len != ids->i_offset)
goto fail; /* Can't deal with non-contig regs */
if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
goto fail;
if (!make_bfd_asection (abfd, ".reg",
SEC_HAS_CONTENTS,
idg->i_len + idf->i_len + ids->i_len,
0,
idg->i_offset))
goto fail;
/* OK, we believe you. You're a core file (sure, sure). */
bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
return abfd->xvec;
fail:
bfd_release (abfd, core_hdr (abfd));
core_hdr (abfd) = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
bfd_boolean
_bfd_dwarf1_find_nearest_line (bfd *abfd,
asection *section,
asymbol **symbols,
bfd_vma offset,
const char **filename_ptr,
const char **functionname_ptr,
unsigned int *linenumber_ptr)
{
struct dwarf1_debug *stash = elf_tdata (abfd)->dwarf1_find_line_info;
struct dwarf1_unit* eachUnit;
/* What address are we looking for? */
unsigned long addr = (unsigned long)(offset + section->vma);
*filename_ptr = NULL;
*functionname_ptr = NULL;
*linenumber_ptr = 0;
if (! stash)
{
asection *msec;
bfd_size_type size = sizeof (struct dwarf1_debug);
stash = elf_tdata (abfd)->dwarf1_find_line_info
= (struct dwarf1_debug *) bfd_zalloc (abfd, size);
if (! stash)
return FALSE;
msec = bfd_get_section_by_name (abfd, ".debug");
if (! msec)
/* No dwarf1 info. Note that at this point the stash
has been allocated, but contains zeros, this lets
future calls to this function fail quicker. */
return FALSE;
size = msec->rawsize ? msec->rawsize : msec->size;
stash->debug_section
= bfd_simple_get_relocated_section_contents (abfd, msec, NULL,
symbols);
if (! stash->debug_section)
return FALSE;
stash->debug_section_end = stash->debug_section + size;
stash->currentDie = stash->debug_section;
stash->abfd = abfd;
stash->syms = symbols;
}
/* A null debug_section indicates that there was no dwarf1 info
or that an error occured while setting up the stash. */
if (! stash->debug_section)
return FALSE;
/* Look at the previously parsed units to see if any contain
the addr. */
for (eachUnit = stash->lastUnit; eachUnit; eachUnit = eachUnit->prev)
if (eachUnit->low_pc <= addr && addr < eachUnit->high_pc)
return dwarf1_unit_find_nearest_line (stash, eachUnit, addr,
filename_ptr,
functionname_ptr,
linenumber_ptr);
while (stash->currentDie < stash->debug_section_end)
{
struct die_info aDieInfo;
if (! parse_die (stash->abfd, &aDieInfo, stash->currentDie,
stash->debug_section_end))
return FALSE;
if (aDieInfo.tag == TAG_compile_unit)
{
struct dwarf1_unit* aUnit
= alloc_dwarf1_unit (stash);
if (!aUnit)
return FALSE;
aUnit->name = aDieInfo.name;
aUnit->low_pc = aDieInfo.low_pc;
aUnit->high_pc = aDieInfo.high_pc;
aUnit->has_stmt_list = aDieInfo.has_stmt_list;
aUnit->stmt_list_offset = aDieInfo.stmt_list_offset;
/* A die has a child if it's followed by a die that is
not it's sibling. */
if (aDieInfo.sibling
&& stash->currentDie + aDieInfo.length
< stash->debug_section_end
&& stash->currentDie + aDieInfo.length
!= stash->debug_section + aDieInfo.sibling)
aUnit->first_child = stash->currentDie + aDieInfo.length;
else
aUnit->first_child = 0;
if (aUnit->low_pc <= addr && addr < aUnit->high_pc)
return dwarf1_unit_find_nearest_line (stash, aUnit, addr,
filename_ptr,
functionname_ptr,
linenumber_ptr);
}
if (aDieInfo.sibling != 0)
stash->currentDie = stash->debug_section + aDieInfo.sibling;
else
stash->currentDie += aDieInfo.length;
}
return FALSE;
}
static const bfd_target *
aout_adobe_callback (bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
asection *sect;
struct external_segdesc ext[1];
char *section_name;
char try_again[30]; /* Name and number. */
char *newname;
int trynum;
flagword flags;
/* Architecture and machine type -- unknown in this format. */
bfd_set_arch_mach (abfd, bfd_arch_unknown, 0L);
/* The positions of the string table and symbol table. */
obj_str_filepos (abfd) = N_STROFF (*execp);
obj_sym_filepos (abfd) = N_SYMOFF (*execp);
/* Suck up the section information from the file, one section at a time. */
for (;;)
{
bfd_size_type amt = sizeof (*ext);
if (bfd_bread ( ext, amt, abfd) != amt)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
switch (ext->e_type[0])
{
case N_TEXT:
section_name = ".text";
flags = SEC_CODE | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
break;
case N_DATA:
section_name = ".data";
flags = SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
break;
case N_BSS:
section_name = ".bss";
flags = SEC_DATA | SEC_HAS_CONTENTS;
break;
case 0:
goto no_more_sections;
default:
(*_bfd_error_handler)
(_("%B: Unknown section type in a.out.adobe file: %x\n"),
abfd, ext->e_type[0]);
goto no_more_sections;
}
/* First one is called ".text" or whatever; subsequent ones are
".text1", ".text2", ... */
bfd_set_error (bfd_error_no_error);
sect = bfd_make_section_with_flags (abfd, section_name, flags);
trynum = 0;
while (!sect)
{
if (bfd_get_error () != bfd_error_no_error)
/* Some other error -- slide into the sunset. */
return NULL;
sprintf (try_again, "%s%d", section_name, ++trynum);
sect = bfd_make_section_with_flags (abfd, try_again, flags);
}
/* Fix the name, if it is a sprintf'd name. */
if (sect->name == try_again)
{
amt = strlen (sect->name);
newname = bfd_zalloc (abfd, amt);
if (newname == NULL)
return NULL;
strcpy (newname, sect->name);
sect->name = newname;
}
/* Assumed big-endian. */
sect->size = ((ext->e_size[0] << 8)
| ext->e_size[1] << 8
| ext->e_size[2]);
sect->vma = H_GET_32 (abfd, ext->e_virtbase);
sect->filepos = H_GET_32 (abfd, ext->e_filebase);
/* FIXME XXX alignment? */
/* Set relocation information for first section of each type. */
if (trynum == 0)
switch (ext->e_type[0])
{
case N_TEXT:
sect->rel_filepos = N_TRELOFF (*execp);
sect->reloc_count = execp->a_trsize;
break;
case N_DATA:
sect->rel_filepos = N_DRELOFF (*execp);
sect->reloc_count = execp->a_drsize;
break;
default:
break;
}
}
no_more_sections:
adata (abfd).reloc_entry_size = sizeof (struct reloc_std_external);
adata (abfd).symbol_entry_size = sizeof (struct external_nlist);
adata (abfd).page_size = 1; /* Not applicable. */
adata (abfd).segment_size = 1; /* Not applicable. */
adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
return abfd->xvec;
}
static bfd_boolean
wasm_scan_name_function_section (bfd *abfd, sec_ptr asect)
{
bfd_byte *p;
bfd_byte *end;
bfd_vma payload_size;
bfd_vma symcount = 0;
tdata_type *tdata = abfd->tdata.any;
asymbol *symbols = NULL;
sec_ptr space_function_index;
if (! asect)
return FALSE;
if (strcmp (asect->name, WASM_NAME_SECTION) != 0)
return FALSE;
p = asect->contents;
end = asect->contents + asect->size;
if (! p)
return FALSE;
while (p < end)
{
bfd_byte subsection_code = *p++;
if (subsection_code == WASM_FUNCTION_SUBSECTION)
break;
/* subsection_code is documented to be a varuint7, meaning that
it has to be a single byte in the 0 - 127 range. If it isn't,
the spec must have changed underneath us, so give up. */
if (subsection_code & 0x80)
return FALSE;
READ_LEB128 (payload_size, p, end);
if (p > p + payload_size)
return FALSE;
p += payload_size;
}
if (p >= end)
return FALSE;
READ_LEB128 (payload_size, p, end);
if (p > p + payload_size)
return FALSE;
if (p + payload_size > end)
return FALSE;
end = p + payload_size;
READ_LEB128 (symcount, p, end);
/* Sanity check: each symbol has at least two bytes. */
if (symcount > payload_size/2)
return FALSE;
tdata->symcount = symcount;
space_function_index = bfd_make_section_with_flags
(abfd, WASM_SECTION_FUNCTION_INDEX, SEC_READONLY | SEC_CODE);
if (! space_function_index)
space_function_index = bfd_get_section_by_name (abfd, WASM_SECTION_FUNCTION_INDEX);
if (! space_function_index)
return FALSE;
symbols = bfd_zalloc (abfd, tdata->symcount * sizeof (asymbol));
if (! symbols)
return FALSE;
for (symcount = 0; p < end && symcount < tdata->symcount; symcount++)
{
bfd_vma idx;
bfd_vma len;
char *name;
asymbol *sym;
READ_LEB128 (idx, p, end);
READ_LEB128 (len, p, end);
if (p + len < p || p + len > end)
goto error_return;
name = bfd_zalloc (abfd, len + 1);
if (! name)
goto error_return;
memcpy (name, p, len);
p += len;
sym = &symbols[symcount];
sym->the_bfd = abfd;
sym->name = name;
sym->value = idx;
sym->flags = BSF_GLOBAL | BSF_FUNCTION;
sym->section = space_function_index;
sym->udata.p = NULL;
}
if (symcount < tdata->symcount)
goto error_return;
tdata->symbols = symbols;
abfd->symcount = symcount;
return TRUE;
error_return:
while (symcount)
bfd_release (abfd, (void *)symbols[--symcount].name);
bfd_release (abfd, symbols);
return FALSE;
}
