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[Bug binutils/28679] readelf -l /usr/bin/npc segfault
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From: |
cvs-commit at gcc dot gnu.org |
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Subject: |
[Bug binutils/28679] readelf -l /usr/bin/npc segfault |
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Date: |
Sat, 11 Dec 2021 01:54:34 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=28679
--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot
gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=40eb8b92a1c795cda00bf931ab9cdd74da434d54
commit 40eb8b92a1c795cda00bf931ab9cdd74da434d54
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Dec 10 13:34:22 2021 -0800
Don't return the main file as the separate debug info
On Fedora 35,
$ readelf -d /usr/bin/npc
caused readelf to run out of stack since load_separate_debug_info
returned the input main file as the separate debug info:
(gdb) bt
#0 load_separate_debug_info (
main_filename=main_filename@entry=0x510f50
"/export/home/hjl/.cache/debuginfod_client/dcc33c51c49e7dafc178fdb5cf8bd8946f965295/debuginfo",
xlink=xlink@entry=0x4e5180 <debug_displays+4480>,
parse_func=parse_func@entry=0x431550 <parse_gnu_debuglink>,
check_func=check_func@entry=0x432ae0 <check_gnu_debuglink>,
func_data=func_data@entry=0x7fffffffdb60, file=file@entry=0x51d430)
at /export/gnu/import/git/sources/binutils-gdb/binutils/dwarf.c:11057
#1 0x000000000043328d in check_for_and_load_links (file=0x51d430,
filename=0x510f50
"/export/home/hjl/.cache/debuginfod_client/dcc33c51c49e7dafc178fdb5cf8bd8946f965295/debuginfo")
at /export/gnu/import/git/sources/binutils-gdb/binutils/dwarf.c:11381
#2 0x00000000004332ae in check_for_and_load_links (file=0x51b070,
filename=0x518dd0
"/export/home/hjl/.cache/debuginfod_client/dcc33c51c49e7dafc178fdb5cf8bd8946f965295/debuginfo")
Return NULL if the separate debug info is the same as the input main
file to avoid infinite recursion.
PR binutils/28679
* dwarf.c (load_separate_debug_info): Don't return the input
main file.
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