/* DWARF 2 support.
- Copyright 1994, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
Adapted from gdb/dwarf2read.c by Gavin Koch of Cygnus Solutions
(gavin@cygnus.com).
in a hash table. */
static struct abbrev_info**
-read_abbrevs (abfd, offset)
+read_abbrevs (abfd, offset, stash)
bfd * abfd;
unsigned int offset;
+ struct dwarf2_debug *stash;
{
struct abbrev_info **abbrevs;
char *abbrev_ptr;
struct abbrev_info *cur_abbrev;
unsigned int abbrev_number, bytes_read, abbrev_name;
unsigned int abbrev_form, hash_number;
- struct dwarf2_debug *stash;
-
- stash = elf_tdata(abfd)->dwarf2_find_line_info;
if (! stash->dwarf_abbrev_buffer)
{
return 0;
}
- if (offset > stash->dwarf_abbrev_size)
+ if (offset >= stash->dwarf_abbrev_size)
{
- (*_bfd_error_handler) (_("Dwarf Error: Abbrev offset (%u) bigger than abbrev size (%u)."),
+ (*_bfd_error_handler) (_("Dwarf Error: Abbrev offset (%u) greater than or equal to abbrev size (%u)."),
offset, stash->dwarf_abbrev_size );
bfd_set_error (bfd_error_bad_value);
return 0;
}
filename = table->files[file - 1].name;
- if (*filename == '/')
+ if (IS_ABSOLUTE_PATH(filename))
return filename;
else
/* Decode the line number information for UNIT. */
static struct line_info_table*
-decode_line_info (unit)
+decode_line_info (unit, stash)
struct comp_unit *unit;
+ struct dwarf2_debug *stash;
{
bfd *abfd = unit->abfd;
- struct dwarf2_debug *stash;
struct line_info_table* table;
char *line_ptr;
char *line_end;
char *cur_file, *cur_dir;
unsigned char op_code, extended_op, adj_opcode;
- stash = elf_tdata (abfd)->dwarf2_find_line_info;
-
if (! stash->dwarf_line_buffer)
{
asection *msec;
below. */
if (unit->line_offset >= stash->dwarf_line_size)
{
- (*_bfd_error_handler) (_("Dwarf Error: Line offset (%u) bigger than line size (%u)."),
+ (*_bfd_error_handler) (_("Dwarf Error: Line offset (%u) greater than or equal to line size (%u)."),
unit->line_offset, stash->dwarf_line_size);
bfd_set_error (bfd_error_bad_value);
return 0;
to get to the line number information for the compilation unit. */
static struct comp_unit *
-parse_comp_unit (abfd, info_ptr, end_ptr, abbrev_length)
+parse_comp_unit (abfd, stash, unit_length, abbrev_length)
bfd* abfd;
- char* info_ptr;
- char* end_ptr;
+ struct dwarf2_debug *stash;
+ bfd_vma unit_length;
unsigned int abbrev_length;
{
struct comp_unit* unit;
struct abbrev_info *abbrev;
struct attribute attr;
+ char *info_ptr = stash->info_ptr;
+ char *end_ptr = info_ptr + unit_length;
+
version = read_2_bytes (abfd, info_ptr);
info_ptr += 2;
BFD_ASSERT (abbrev_length == 0
}
/* Read the abbrevs for this compilation unit into a table. */
- abbrevs = read_abbrevs (abfd, abbrev_offset);
+ abbrevs = read_abbrevs (abfd, abbrev_offset, stash);
if (! abbrevs)
return 0;
static boolean
comp_unit_find_nearest_line (unit, addr,
- filename_ptr, functionname_ptr, linenumber_ptr)
+ filename_ptr, functionname_ptr, linenumber_ptr,
+ stash)
struct comp_unit* unit;
bfd_vma addr;
const char **filename_ptr;
const char **functionname_ptr;
unsigned int *linenumber_ptr;
+ struct dwarf2_debug *stash;
{
boolean line_p;
boolean func_p;
return false;
}
- unit->line_table = decode_line_info (unit);
+ unit->line_table = decode_line_info (unit, stash);
if (! unit->line_table)
{
_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
linenumber_ptr,
- addr_size)
+ addr_size, pinfo)
bfd *abfd;
asection *section;
asymbol **symbols ATTRIBUTE_UNUSED;
const char **functionname_ptr;
unsigned int *linenumber_ptr;
unsigned int addr_size;
+ PTR *pinfo;
{
/* Read each compilation unit from the section .debug_info, and check
to see if it contains the address we are searching for. If yes,
We keep a list of all the previously read compilation units, and
a pointer to the next un-read compilation unit. Check the
previously read units before reading more. */
- struct dwarf2_debug *stash = elf_tdata (abfd)->dwarf2_find_line_info;
+ struct dwarf2_debug *stash = (struct dwarf2_debug *) *pinfo;
/* What address are we looking for? */
bfd_vma addr = offset + section->vma;
unsigned long total_size;
asection *msec;
- stash = elf_tdata (abfd)->dwarf2_find_line_info =
+ stash =
(struct dwarf2_debug*) bfd_zalloc (abfd, sizeof (struct dwarf2_debug));
if (! stash)
return false;
+ *pinfo = (PTR) stash;
+
msec = find_debug_info (abfd, NULL);
if (! msec)
/* No dwarf2 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;
+ return false;
/* There can be more than one DWARF2 info section in a BFD these days.
Read them all in and produce one large stash. We do this in two
for (each = stash->all_comp_units; each; each = each->next_unit)
if (comp_unit_contains_address (each, addr))
return comp_unit_find_nearest_line (each, addr, filename_ptr,
- functionname_ptr, linenumber_ptr);
+ functionname_ptr, linenumber_ptr,
+ stash);
/* Read each remaining comp. units checking each as they are read. */
while (stash->info_ptr < stash->info_ptr_end)
if (length > 0)
{
- each = parse_comp_unit (abfd, stash->info_ptr,
- stash->info_ptr + length,
- addr_size);
+ each = parse_comp_unit (abfd, stash, length, addr_size);
stash->info_ptr += length;
if (each)
return comp_unit_find_nearest_line (each, addr,
filename_ptr,
functionname_ptr,
- linenumber_ptr);
+ linenumber_ptr,
+ stash);
}
else
{
found = comp_unit_find_nearest_line (each, addr,
filename_ptr,
functionname_ptr,
- linenumber_ptr);
+ linenumber_ptr,
+ stash);
if (found)
return true;
}
projects / deliverable / binutils-gdb.git / blobdiff