mirror/binutils-gdb
2
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2025-03-07 13:39:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

[binutils] Handle DW_UT_skeleton/split_compile in process_debug_info

Browse Source 
With this exec:
...
$ gcc -gsplit-dwarf hello.c -gdwarf-5
...
we run into:
...
$ readelf -w a.out > READELF
readelf: Warning: CU at offset c7 contains corrupt or unsupported unit type: 4.
readelf: Warning: CU at offset c7 contains corrupt or unsupported unit type: 4.
...

Fix this by handling DW_UT_skeleton and DW_UT_split_compile in
process_debug_info.

Note that this just adds the parsing of DWO_id, but not yet any printing of
it.

Tested on x86_64-linux.

binutils/ChangeLog:

2021-02-09  Tom de Vries  <tdevries@suse.de>

	PR binutils/27386
	* dwarf.c (process_debug_info): Handling DW_UT_skeleton and
	DW_UT_split_compile.
This commit is contained in:
Tom de Vries 2021-02-09 14:27:28 +01:00
parent a57d17732e
commit 9b87f84a35
2 changed files with 23 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
binutils/ChangeLog
View File

@ -1,3 +1,9 @@
2021-02-09 Tom de Vries <tdevries@suse.de>
PR binutils/27386
* dwarf.c (process_debug_info): Handling DW_UT_skeleton and
DW_UT_split_compile.
2021-02-09 Alan Modra <amodra@gmail.com>
* testsuite/lib/binutils-common.exp (supports_gnu_osabi): Remove

18
binutils/dwarf.c
View File

@ -3581,6 +3581,13 @@ process_debug_info (struct dwarf_section * section,
SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end);
if (compunit.cu_unit_type == DW_UT_split_compile
|| compunit.cu_unit_type == DW_UT_skeleton)
{
uint64_t dwo_id;
SAFE_BYTE_GET_AND_INC (dwo_id, hdrptr, 8, end);
}
if (this_set == NULL)
{
abbrev_base = 0;
@ -3684,6 +3691,13 @@ process_debug_info (struct dwarf_section * section,
if (compunit.cu_version < 5)
SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
if (compunit.cu_unit_type == DW_UT_split_compile
|| compunit.cu_unit_type == DW_UT_skeleton)
{
uint64_t dwo_id;
SAFE_BYTE_GET_AND_INC (dwo_id, hdrptr, 8, end);
}
/* PR 17512: file: 001-108546-0.001:0.1. */
if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8)
{
@ -3800,7 +3814,9 @@ process_debug_info (struct dwarf_section * section,
if (compunit.cu_unit_type != DW_UT_compile
&& compunit.cu_unit_type != DW_UT_partial
&& compunit.cu_unit_type != DW_UT_type)
&& compunit.cu_unit_type != DW_UT_type
&& compunit.cu_unit_type != DW_UT_split_compile
&& compunit.cu_unit_type != DW_UT_skeleton)
{
warn (_("CU at offset %s contains corrupt or "
"unsupported unit type: %d.\n"),