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* dwarf.c (process_debug_info): Include the CU offset and corrupt

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version value when reporting unrecognised DWARF version numbers.
        (load_debug_info): Remember a failed attempt to load and parse the
        .debug_info section and do not repeat such attempts.
        (display_debug_lines): Check the return value from load_debug_info
        and return whilst displaying a warning message if the load failed.
        (display_debug_loc): Likewise.
        (display_debug_ranges): Likewise.
This commit is contained in:
Nick Clifton
2008-01-14 12:26:57 +00:00
parent c1766e7d3e
commit 1febe64d96
2 changed files with 39 additions and 6 deletions
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34
binutils/dwarf.c
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@ -1841,7 +1841,8 @@ process_debug_info (struct dwarf_section *section, void *file,
if (compunit.cu_version != 2 && compunit.cu_version != 3)
{
warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"),
cu_offset, compunit.cu_version);
continue;
}
@ -1985,6 +1986,11 @@ load_debug_info (void * file)
last_pointer_size = 0;
warned_about_missing_comp_units = FALSE;
/* 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)
return 0;
/* If we already have the information there is nothing else to do. */
if (num_debug_info_entries > 0)
return num_debug_info_entries;
@ -1992,8 +1998,9 @@ load_debug_info (void * file)
if (load_debug_section (info, file)
&& process_debug_info (&debug_displays [info].section, file, 1))
return num_debug_info_entries;
else
return 0;
num_debug_info_entries = (unsigned) -1;
return 0;
}
static int
@ -2006,7 +2013,12 @@ display_debug_lines (struct dwarf_section *section, void *file)
printf (_("\nDump of debug contents of section %s:\n\n"),
section->name);
load_debug_info (file);
if (load_debug_info (file) == 0)
{
warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
section->name);
return 0;
}
while (data < end)
{
@ -2501,7 +2513,12 @@ display_debug_loc (struct dwarf_section *section, void *file)
return 0;
}
load_debug_info (file);
if (load_debug_info (file) == 0)
{
warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
section->name);
return 0;
}
/* Check the order of location list in .debug_info section. If
offsets of location lists are in the ascending order, we can
@ -2876,7 +2893,12 @@ display_debug_ranges (struct dwarf_section *section,
return 0;
}
load_debug_info (file);
if (load_debug_info (file) == 0)
{
warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
section->name);
return 0;
}
/* Check the order of range list in .debug_info section. If
offsets of range lists are in the ascending order, we can