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* dwarf.c (process_extended_line_op): Remove pointer_size param. 

Use length instead to determine address size.
	(get_pointer_size_and_offset_of_comp_unit): Delete.
	(display_debug_lines): Adjust for above.
	(display_debug_aranges): Don't stop on finding two zeros.
	(display_debug_frames): For warning, print offset not pointer.
This commit is contained in:
Alan Modra 2006-03-10 13:30:10 +00:00
parent 518051dc53
commit 1617e5712a
2 changed files with 17 additions and 72 deletions
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9
binutils/ChangeLog
View File

@ -1,3 +1,12 @@
2006-03-10 Alan Modra <amodra@bigpond.net.au>
* dwarf.c (process_extended_line_op): Remove pointer_size param.
Use length instead to determine address size.
(get_pointer_size_and_offset_of_comp_unit): Delete.
(display_debug_lines): Adjust for above.
(display_debug_aranges): Don't stop on finding two zeros.
(display_debug_frames): For warning, print offset not pointer.
2006-03-09 Danny Smith <dannysmith@users.sourceforge.net>
* dlltool.c: Update copyright year.

80
binutils/dwarf.c
View File

@ -221,7 +221,7 @@ reset_state_machine (int is_stmt)
Returns the number of bytes read. */
static int
process_extended_line_op (unsigned char *data, int is_stmt, int pointer_size)
process_extended_line_op (unsigned char *data, int is_stmt)
{
unsigned char op_code;
unsigned int bytes_read;
@ -251,7 +251,7 @@ process_extended_line_op (unsigned char *data, int is_stmt, int pointer_size)
break;
case DW_LNE_set_address:
adr = byte_get (data, pointer_size);
adr = byte_get (data, len - bytes_read - 1);
printf (_("set Address to 0x%lx\n"), adr);
state_machine_regs.address = adr;
break;
@ -1766,55 +1766,12 @@ load_debug_info (void * file)
return 0;
}
/* Retrieve the pointer size associated with the given compilation unit.
Optionally the offset of this unit into the .debug_info section is
also retutned. If there is no .debug_info section then an error
message is issued and 0 is returned. If the requested comp unit has
not been defined in the .debug_info section then a warning message
is issued and the last know pointer size is returned. This message
is only issued once per section dumped per file dumped. */
static unsigned int
get_pointer_size_and_offset_of_comp_unit (unsigned int comp_unit,
const char * section_name,
unsigned long * offset_return)
{
unsigned long offset = 0;
if (num_debug_info_entries == 0)
error (_("%s section needs a populated .debug_info section\n"),
section_name);
else if (comp_unit >= num_debug_info_entries)
{
if (!warned_about_missing_comp_units)
{
warn (_("%s section has more comp units than .debug_info section\n"),
section_name);
warn (_("assuming that the pointer size is %d, from the last comp unit in .debug_info\n\n"),
last_pointer_size);
warned_about_missing_comp_units = TRUE;
}
}
else
{
last_pointer_size = debug_information [comp_unit].pointer_size;
offset = debug_information [comp_unit].cu_offset;
}
if (offset_return != NULL)
* offset_return = offset;
return last_pointer_size;
}
static int
display_debug_lines (struct dwarf_section *section, void *file)
{
unsigned char *start = section->start;
unsigned char *data = start;
unsigned char *end = start + section->size;
unsigned int comp_unit = 0;
printf (_("\nDump of debug contents of section %s:\n\n"),
section->name);
@ -1827,7 +1784,6 @@ display_debug_lines (struct dwarf_section *section, void *file)
unsigned char *standard_opcodes;
unsigned char *end_of_sequence;
unsigned char *hdrptr;
unsigned int pointer_size;
int initial_length_size;
int offset_size;
int i;
@ -1885,12 +1841,6 @@ display_debug_lines (struct dwarf_section *section, void *file)
info.li_line_base <<= 24;
info.li_line_base >>= 24;
/* Get the pointer size from the comp unit associated
with this block of line number information. */
pointer_size = get_pointer_size_and_offset_of_comp_unit
(comp_unit, ".debug_line", NULL);
comp_unit ++;
printf (_(" Length: %ld\n"), info.li_length);
printf (_(" DWARF Version: %d\n"), info.li_version);
printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
@ -1899,9 +1849,6 @@ display_debug_lines (struct dwarf_section *section, void *file)
printf (_(" Line Base: %d\n"), info.li_line_base);
printf (_(" Line Range: %d\n"), info.li_line_range);
printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
printf (_(" (Pointer size: %u)%s\n"),
pointer_size,
warned_about_missing_comp_units ? " [assumed]" : "" );
end_of_sequence = data + info.li_length + initial_length_size;
@ -1993,14 +1940,7 @@ display_debug_lines (struct dwarf_section *section, void *file)
else switch (op_code)
{
case DW_LNS_extended_op:
if (pointer_size == 0)
{
warn (_("Extend line ops need a valid pointer size, guessing at 4\n"));
pointer_size = 4;
}
data += process_extended_line_op (data, info.li_default_is_stmt,
pointer_size);
data += process_extended_line_op (data, info.li_default_is_stmt);
break;
case DW_LNS_copy:
@ -2634,7 +2574,9 @@ display_debug_aranges (struct dwarf_section *section,
if (excess)
ranges += (2 * arange.ar_pointer_size) - excess;
for (;;)
start += arange.ar_length + initial_length_size;
while (ranges + 2 * arange.ar_pointer_size <= start)
{
address = byte_get (ranges, arange.ar_pointer_size);
@ -2644,14 +2586,8 @@ display_debug_aranges (struct dwarf_section *section,
ranges += arange.ar_pointer_size;
/* A pair of zeros marks the end of the list. */
if (address == 0 && length == 0)
break;
printf (" %8.8lx %lu\n", address, length);
}
start += arange.ar_length + initial_length_size;
}
printf ("\n");
@ -3142,8 +3078,8 @@ display_debug_frames (struct dwarf_section *section,
if (!cie)
{
warn ("Invalid CIE pointer %08lx in FDE at %p\n",
cie_id, saved_start);
warn ("Invalid CIE pointer %08lx in FDE at %08lx\n",
cie_id, (unsigned long)(saved_start - section_start));
start = block_end;
fc->ncols = 0;
fc->col_type = xmalloc (sizeof (short int));