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When displaying ranges, ignore duplicate offsets.

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* dwarf.c (display_debug_ranges): Ignore duplicate entries in
	range_entries for the same offset.
This commit is contained in:
Andrew Burgess 2020-04-29 17:21:10 +01:00 committed by Nick Clifton
parent 241e541d00
commit cb4c35cfbe
2 changed files with 15 additions and 0 deletions
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5
binutils/ChangeLog
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@ -1,3 +1,8 @@
2020-04-29 Andrew Burgess <andrew.burgess@embecosm.com>
* dwarf.c (display_debug_ranges): Ignore duplicate entries in
range_entries for the same offset.
2020-04-29 Nick Clifton <nickc@redhat.com> 2020-04-29 Nick Clifton <nickc@redhat.com>
* readelf.c (warn): New function - like elfcomm.c version but only * readelf.c (warn): New function - like elfcomm.c version but only

10
binutils/dwarf.c
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@ -6923,6 +6923,7 @@ display_debug_ranges (struct dwarf_section *section,
int is_rnglists = strstr (section->name, "debug_rnglists") != NULL; int is_rnglists = strstr (section->name, "debug_rnglists") != NULL;
/* Initialize it due to a false compiler warning. */ /* Initialize it due to a false compiler warning. */
unsigned char address_size = 0; unsigned char address_size = 0;
dwarf_vma last_offset = 0;
if (bytes == 0) if (bytes == 0)
{ {
@ -7078,6 +7079,15 @@ display_debug_ranges (struct dwarf_section *section,
continue; continue;
} }
/* If multiple DWARF entities reference the same range then we will
have multiple entries in the `range_entries' list for the same
offset. Thanks to the sort above these will all be consecutive in
the `range_entries' list, so we can easily ignore duplicates
here. */
if (i > 0 && last_offset == offset)
continue;
last_offset = offset;
if (dwarf_check != 0 && i > 0) if (dwarf_check != 0 && i > 0)
{ {
if (start < next) if (start < next)