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(DEBUG_INFO_UNAVAILABLE): Value stored in num_debug_info_entries

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when the .debug_info section could not be loaded/parsed.
        (process_debug_info): Display the length of the compilation unit
        in hex, so that it corresponds with the offsets that will follow.
        Tell the user if the length was 32-bit or 64-bit.
        If a DIE abbreviation could not be found, tell the user the offset
        of the DIE.
        (free_debug_memory): Do not attempt to free any entries in the
        debug_information array if num_debug_info_entries is set to
        DEBUG_INFO_UNAVAILABLE.
This commit is contained in:
Nick Clifton 2008-01-14 14:53:47 +00:00
parent 1febe64d96
commit cc86f28f31
2 changed files with 33 additions and 16 deletions
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10
binutils/ChangeLog
View file

@ -8,6 +8,16 @@
and return whilst displaying a warning message if the load failed.
(display_debug_loc): Likewise.
(display_debug_ranges): Likewise.
(DEBUG_INFO_UNAVAILABLE): Value stored in num_debug_info_entries
when the .debug_info section could not be loaded/parsed.
(process_debug_info): Display the length of the compilation unit
in hex, so that it corresponds with the offsets that will follow.
Tell the user if the length was 32-bit or 64-bit.
If a DIE abbreviation could not be found, tell the user the offset
of the DIE.
(free_debug_memory): Do not attempt to free any entries in the
debug_information array if num_debug_info_entries is set to
DEBUG_INFO_UNAVAILABLE.
2008-01-10 Andreas Schwab <schwab@suse.de>

39
binutils/dwarf.c
View file

@ -34,6 +34,9 @@ static int warned_about_missing_comp_units = FALSE;
static unsigned int num_debug_info_entries = 0;
static debug_info *debug_information = NULL;
/* Special value for num_debug_info_entries to indicate
that the .debug_info section could not be loaded/parsed. */
#define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
dwarf_vma eh_addr_size;
@ -1823,7 +1826,8 @@ process_debug_info (struct dwarf_section *section, void *file,
if (!do_loc)
{
printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset);
printf (_(" Length: %ld\n"), compunit.cu_length);
printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length,
initial_length_size == 8 ? "64-bit" : "32-bit");
printf (_(" Version: %d\n"), compunit.cu_version);
printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
@ -1913,8 +1917,8 @@ process_debug_info (struct dwarf_section *section, void *file,
printf ("\n");
fflush (stdout);
}
warn (_("Unable to locate entry %lu in the abbreviation table\n"),
abbrev_number);
warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"),
die_offset, abbrev_number);
return 0;
}
@ -1988,7 +1992,7 @@ load_debug_info (void * file)
/* If we have already tried and failed to load the .debug_info
section then do not bother to repear the task. */
if (num_debug_info_entries == (unsigned) -1)
if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
return 0;
/* If we already have the information there is nothing else to do. */
@ -1999,7 +2003,7 @@ load_debug_info (void * file)
&& process_debug_info (&debug_displays [info].section, file, 1))
return num_debug_info_entries;
num_debug_info_entries = (unsigned) -1;
num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
return 0;
}
@ -3244,7 +3248,7 @@ display_debug_frames (struct dwarf_section *section,
fc->ncols = 0;
fc->col_type = xmalloc (sizeof (short int));
fc->col_offset = xmalloc (sizeof (int));
frame_need_space (fc, max_regs-1);
frame_need_space (fc, max_regs - 1);
version = *start++;
@ -3386,7 +3390,7 @@ display_debug_frames (struct dwarf_section *section,
fc->cfa_reg = cie->cfa_reg;
fc->cfa_offset = cie->cfa_offset;
fc->ra = cie->ra;
frame_need_space (fc, max_regs-1);
frame_need_space (fc, max_regs - 1);
fc->fde_encoding = cie->fde_encoding;
}
@ -3713,7 +3717,7 @@ display_debug_frames (struct dwarf_section *section,
if (rs)
{
remembered_state = rs->next;
frame_need_space (fc, rs->ncols-1);
frame_need_space (fc, rs->ncols - 1);
memcpy (fc->col_type, rs->col_type, rs->ncols);
memcpy (fc->col_offset, rs->col_offset,
rs->ncols * sizeof (int));
@ -3958,23 +3962,26 @@ free_debug_memory (void)
for (i = 0; i < max; i++)
free_debug_section (i);
if (debug_information)
if (debug_information != NULL)
{
for (i = 0; i < num_debug_info_entries; i++)
if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
{
if (!debug_information [i].max_loc_offsets)
for (i = 0; i < num_debug_info_entries; i++)
{
free (debug_information [i].loc_offsets);
free (debug_information [i].have_frame_base);
if (!debug_information [i].max_loc_offsets)
{
free (debug_information [i].loc_offsets);
free (debug_information [i].have_frame_base);
}
if (!debug_information [i].max_range_lists)
free (debug_information [i].range_lists);
}
if (!debug_information [i].max_range_lists)
free (debug_information [i].range_lists);
}
free (debug_information);
debug_information = NULL;
num_debug_info_entries = 0;
}
}
struct dwarf_section_display debug_displays[] =