From b937534868c8d7aec3b6d645bf5fd657bbfccd42 Mon Sep 17 00:00:00 2001 From: Siddhesh Poyarekar Date: Wed, 29 May 2013 21:30:20 +0530 Subject: Avoid crashing in LD_DEBUG when program name is unavailable Resolves: #15465 The program name may be unavailable if the user application tampers with argc and argv[]. Some parts of the dynamic linker caters for this while others don't, so this patch consolidates the check and fallback into a single macro and updates all users. --- elf/tst-null-argv-lib.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 elf/tst-null-argv-lib.c (limited to 'elf/tst-null-argv-lib.c') diff --git a/elf/tst-null-argv-lib.c b/elf/tst-null-argv-lib.c new file mode 100644 index 0000000000..e754299dc0 --- /dev/null +++ b/elf/tst-null-argv-lib.c @@ -0,0 +1,24 @@ +/* Verify that program does not crash when LD_DEBUG is set and the program name + is not available. This is the library. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +void +foo (void) +{ + return; +} -- cgit v1.2.3