/* DWARF 2 support.
- Copyright (C) 1994-2018 Free Software Foundation, Inc.
+ Copyright (C) 1994-2019 Free Software Foundation, Inc.
Adapted from gdb/dwarf2read.c by Gavin Koch of Cygnus Solutions
(gavin@cygnus.com).
/* Section VMAs at the time the stash was built. */
bfd_vma *sec_vma;
+ /* Number of sections in the SEC_VMA table. */
+ unsigned int sec_vma_count;
/* Number of sections whose VMA we must adjust. */
int adjusted_section_count;
{ NULL, NULL },
};
-/* NB/ Numbers in this enum must match up with indicies
+/* NB/ Numbers in this enum must match up with indices
into the dwarf_debug_sections[] array above. */
enum dwarf_debug_section_enum
{
asection *msec;
const char *section_name = sec->uncompressed_name;
bfd_byte *contents = *section_buffer;
+ bfd_size_type amt;
/* The section may have already been read. */
if (contents == NULL)
}
if (! msec)
{
- _bfd_error_handler (_("Dwarf Error: Can't find %s section."),
+ _bfd_error_handler (_("DWARF error: can't find %s section."),
sec->uncompressed_name);
bfd_set_error (bfd_error_bad_value);
return FALSE;
*section_size = msec->rawsize ? msec->rawsize : msec->size;
/* Paranoia - alloc one extra so that we can make sure a string
section is NUL terminated. */
- contents = (bfd_byte *) bfd_malloc (*section_size + 1);
+ amt = *section_size + 1;
+ if (amt == 0)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return FALSE;
+ }
+ contents = (bfd_byte *) bfd_malloc (amt);
if (contents == NULL)
return FALSE;
if (syms
if (offset != 0 && offset >= *section_size)
{
/* xgettext: c-format */
- _bfd_error_handler (_("Dwarf Error: Offset (%" PRIu64 ")"
- " greater than or equal to %s size (%" PRIu64 ")."),
+ _bfd_error_handler (_("DWARF error: offset (%" PRIu64 ")"
+ " greater than or equal to %s size (%" PRIu64 ")"),
(uint64_t) offset, section_name,
(uint64_t) *section_size);
bfd_set_error (bfd_error_bad_value);
}
static bfd_byte *
-read_n_bytes (bfd *abfd ATTRIBUTE_UNUSED,
- bfd_byte *buf,
- bfd_byte *end,
- unsigned int size ATTRIBUTE_UNUSED)
+read_n_bytes (bfd_byte * buf,
+ bfd_byte * end,
+ struct dwarf_block * block)
{
- if (buf + size > end)
- return NULL;
- return buf;
+ unsigned int size = block->size;
+ bfd_byte * block_end = buf + size;
+
+ if (block_end > end || block_end < buf)
+ {
+ block->data = NULL;
+ block->size = 0;
+ return end;
+ }
+ else
+ {
+ block->data = buf;
+ return block_end;
+ }
}
/* Scans a NUL terminated string starting at BUF, returning a pointer to it.
if (info_ptr >= info_ptr_end && form != DW_FORM_flag_present)
{
- _bfd_error_handler (_("Dwarf Error: Info pointer extends beyond end of attributes"));
+ _bfd_error_handler (_("DWARF error: info pointer extends beyond end of attributes"));
bfd_set_error (bfd_error_bad_value);
return info_ptr;
}
return NULL;
blk->size = read_2_bytes (abfd, info_ptr, info_ptr_end);
info_ptr += 2;
- blk->data = read_n_bytes (abfd, info_ptr, info_ptr_end, blk->size);
- info_ptr += blk->size;
+ info_ptr = read_n_bytes (info_ptr, info_ptr_end, blk);
attr->u.blk = blk;
break;
case DW_FORM_block4:
return NULL;
blk->size = read_4_bytes (abfd, info_ptr, info_ptr_end);
info_ptr += 4;
- blk->data = read_n_bytes (abfd, info_ptr, info_ptr_end, blk->size);
- info_ptr += blk->size;
+ info_ptr = read_n_bytes (info_ptr, info_ptr_end, blk);
attr->u.blk = blk;
break;
case DW_FORM_data2:
blk->size = _bfd_safe_read_leb128 (abfd, info_ptr, &bytes_read,
FALSE, info_ptr_end);
info_ptr += bytes_read;
- blk->data = read_n_bytes (abfd, info_ptr, info_ptr_end, blk->size);
- info_ptr += blk->size;
+ info_ptr = read_n_bytes (info_ptr, info_ptr_end, blk);
attr->u.blk = blk;
break;
case DW_FORM_block1:
return NULL;
blk->size = read_1_byte (abfd, info_ptr, info_ptr_end);
info_ptr += 1;
- blk->data = read_n_bytes (abfd, info_ptr, info_ptr_end, blk->size);
- info_ptr += blk->size;
+ info_ptr = read_n_bytes (info_ptr, info_ptr_end, blk);
attr->u.blk = blk;
break;
case DW_FORM_data1:
attr->u.sval = implicit_const;
break;
default:
- _bfd_error_handler (_("Dwarf Error: Invalid or unhandled FORM value: %#x."),
+ _bfd_error_handler (_("DWARF error: invalid or unhandled FORM value: %#x"),
form);
bfd_set_error (bfd_error_bad_value);
return NULL;
{
char *filename;
- if (file - 1 >= table->num_files)
+ if (table == NULL || file - 1 >= table->num_files)
{
/* FILE == 0 means unknown. */
if (file)
_bfd_error_handler
- (_("Dwarf Error: mangled line number section (bad file number)."));
+ (_("DWARF error: mangled line number section (bad file number)"));
return strdup ("<unknown>");
}
buf += bytes_read;
if (format_count == 0 && data_count != 0)
{
- _bfd_error_handler (_("Dwarf Error: Zero format count."));
+ _bfd_error_handler (_("DWARF error: zero format count"));
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (data_count > (bfd_vma) (buf_end - buf))
{
_bfd_error_handler
- (_("Dwarf Error: data count (%" PRIx64 ") larger than buffer size."),
+ (_("DWARF error: data count (%" PRIx64 ") larger than buffer size"),
(uint64_t) data_count);
bfd_set_error (bfd_error_bad_value);
return FALSE;
break;
default:
_bfd_error_handler
- (_("Dwarf Error: Unknown format content type %" PRIu64 "."),
+ (_("DWARF error: unknown format content type %" PRIu64),
(uint64_t) content_type);
bfd_set_error (bfd_error_bad_value);
return FALSE;
if (stash->dwarf_line_size < 16)
{
_bfd_error_handler
- (_("Dwarf Error: Line info section is too small (%" PRId64 ")"),
+ (_("DWARF error: line info section is too small (%" PRId64 ")"),
(int64_t) stash->dwarf_line_size);
bfd_set_error (bfd_error_bad_value);
return NULL;
{
_bfd_error_handler
/* xgettext: c-format */
- (_("Dwarf Error: Line info data is bigger (%#" PRIx64 ")"
+ (_("DWARF error: line info data is bigger (%#" PRIx64 ")"
" than the space remaining in the section (%#lx)"),
(uint64_t) lh.total_length, (unsigned long) (line_end - line_ptr));
bfd_set_error (bfd_error_bad_value);
if (lh.version < 2 || lh.version > 5)
{
_bfd_error_handler
- (_("Dwarf Error: Unhandled .debug_line version %d."), lh.version);
+ (_("DWARF error: unhandled .debug_line version %d"), lh.version);
bfd_set_error (bfd_error_bad_value);
return NULL;
}
>= line_end)
{
_bfd_error_handler
- (_("Dwarf Error: Ran out of room reading prologue"));
+ (_("DWARF error: ran out of room reading prologue"));
bfd_set_error (bfd_error_bad_value);
return NULL;
}
if (segment_selector_size != 0)
{
_bfd_error_handler
- (_("Dwarf Error: Line info unsupported segment selector size %u."),
+ (_("DWARF error: line info unsupported segment selector size %u"),
segment_selector_size);
bfd_set_error (bfd_error_bad_value);
return NULL;
if (lh.maximum_ops_per_insn == 0)
{
_bfd_error_handler
- (_("Dwarf Error: Invalid maximum operations per instruction."));
+ (_("DWARF error: invalid maximum operations per instruction"));
bfd_set_error (bfd_error_bad_value);
return NULL;
}
if (line_ptr + (lh.opcode_base - 1) >= line_end)
{
- _bfd_error_handler (_("Dwarf Error: Ran out of room reading opcodes"));
+ _bfd_error_handler (_("DWARF error: ran out of room reading opcodes"));
bfd_set_error (bfd_error_bad_value);
return NULL;
}
break;
default:
_bfd_error_handler
- (_("Dwarf Error: mangled line number section."));
+ (_("DWARF error: mangled line number section"));
bfd_set_error (bfd_error_bad_value);
line_fail:
if (filename != NULL)
info_ptr = unit->stash->info_ptr_memory;
info_ptr_end = unit->stash->info_ptr_end;
total = info_ptr_end - info_ptr;
- if (!die_ref || die_ref >= total)
+ if (!die_ref)
+ return TRUE;
+ else if (die_ref >= total)
{
_bfd_error_handler
- (_("Dwarf Error: Invalid abstract instance DIE ref."));
+ (_("DWARF error: invalid abstract instance DIE ref"));
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (info_ptr == NULL)
{
_bfd_error_handler
- (_("Dwarf Error: Unable to read alt ref %" PRIu64 "."),
+ (_("DWARF error: unable to read alt ref %" PRIu64),
(uint64_t) die_ref);
bfd_set_error (bfd_error_bad_value);
return FALSE;
if (!die_ref || die_ref >= total)
{
_bfd_error_handler
- (_("Dwarf Error: Invalid abstract instance DIE ref."));
+ (_("DWARF error: invalid abstract instance DIE ref"));
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (! abbrev)
{
_bfd_error_handler
- (_("Dwarf Error: Could not find abbrev number %u."), abbrev_number);
+ (_("DWARF error: could not find abbrev number %u"), abbrev_number);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (info_ptr == orig_info_ptr)
{
_bfd_error_handler
- (_("Dwarf Error: Abstract instance recursion detected."));
+ (_("DWARF error: abstract instance recursion detected"));
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
break;
case DW_AT_specification:
if (!find_abstract_instance (unit, info_ptr, &attr,
- pname, is_linkage,
+ &name, is_linkage,
filename_ptr, linenumber_ptr))
return FALSE;
break;
if (abbrev_number != previous_failed_abbrev)
{
_bfd_error_handler
- (_("Dwarf Error: Could not find abbrev number %u."),
+ (_("DWARF error: could not find abbrev number %u"),
abbrev_number);
previous_failed_abbrev = abbrev_number;
}
if (version)
{
_bfd_error_handler
- (_("Dwarf Error: found dwarf version '%u', this reader"
- " only handles version 2, 3, 4 and 5 information."), version);
+ (_("DWARF error: found dwarf version '%u', this reader"
+ " only handles version 2, 3, 4 and 5 information"), version);
bfd_set_error (bfd_error_bad_value);
}
return NULL;
{
_bfd_error_handler
/* xgettext: c-format */
- (_("Dwarf Error: found address size '%u', this reader"
- " can not handle sizes greater than '%u'."),
+ (_("DWARF error: found address size '%u', this reader"
+ " can not handle sizes greater than '%u'"),
addr_size,
(unsigned int) sizeof (bfd_vma));
bfd_set_error (bfd_error_bad_value);
if (addr_size != 2 && addr_size != 4 && addr_size != 8)
{
_bfd_error_handler
- ("Dwarf Error: found address size '%u', this reader"
- " can only handle address sizes '2', '4' and '8'.", addr_size);
+ ("DWARF error: found address size '%u', this reader"
+ " can only handle address sizes '2', '4' and '8'", addr_size);
bfd_set_error (bfd_error_bad_value);
return NULL;
}
abbrev = lookup_abbrev (abbrev_number, abbrevs);
if (! abbrev)
{
- _bfd_error_handler (_("Dwarf Error: Could not find abbrev number %u."),
+ _bfd_error_handler (_("DWARF error: could not find abbrev number %u"),
abbrev_number);
bfd_set_error (bfd_error_bad_value);
return NULL;
if (! is_str_attr (attr.form))
{
_bfd_error_handler
- (_("Dwarf Error: DW_AT_comp_dir attribute encountered with a non-string form."));
+ (_("DWARF error: DW_AT_comp_dir attribute encountered with a non-string form"));
comp_dir = NULL;
}
stash->sec_vma = bfd_malloc (sizeof (*stash->sec_vma) * abfd->section_count);
if (stash->sec_vma == NULL)
return FALSE;
+ stash->sec_vma_count = abfd->section_count;
for (i = 0, s = abfd->sections; i < abfd->section_count; i++, s = s->next)
{
if (s->output_section != NULL)
asection *s;
unsigned int i;
+ /* PR 24334: If the number of sections in ABFD has changed between
+ when the stash was created and now, then we cannot trust the
+ stashed vma information. */
+ if (abfd->section_count != stash->sec_vma_count)
+ return FALSE;
+
for (i = 0, s = abfd->sections; i < abfd->section_count; i++, s = s->next)
{
bfd_vma vma;
stash = (struct dwarf2_debug *) *pinfo;
- if (stash == NULL)
+ if (stash == NULL || symbols == NULL)
return 0;
for (unit = stash->all_comp_units; unit; unit = unit->next_unit)
projects / deliverable / binutils-gdb.git / blobdiff