https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
Bug ID: 78294
Summary: -fsanitize=thread broken
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
markus@x4 ~ % echo "int main(){}" | g++ -fsanitize=thread -x c++ - && ./a.out
[1] 4123 segmentation fault ./a.out
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007ffff6f4312d in __interceptor___tls_get_addr (arg=0x7ffff6ff7f68) at
../../../../gcc/libsanitizer/tsan/tsan_interceptors.cc:2421
#2 0x00007ffff6f8b00a in
__tsan::ScopedIgnoreInterceptors::ScopedIgnoreInterceptors (this=<synthetic
pointer>) at ../../../../gcc/libsanitizer/tsan/tsan_rtl.h:549
#3 __tsan::Initialize (thr=thr@entry=0x7ffff6277780) at
../../../../gcc/libsanitizer/tsan/tsan_rtl.cc:331
#4 0x00007ffff6f43b90 in __tsan::ScopedInterceptor::ScopedInterceptor
(this=this@entry=0x7fffffffe490, thr=0x7ffff6277780, pc=140737353072294,
fname=0x7ffff6fc5eea "__cxa_atexit") at
../../../../gcc/libsanitizer/tsan/tsan_interceptors.cc:256
#5 0x00007ffff6f44e67 in __interceptor___cxa_atexit (f=f@entry=0x7ffff7efd480
<std::(anonymous
namespace)::generic_error_category::~generic_error_category()>,
arg=arg@entry=0x7ffff7ff2410 <std::(anonymous
namespace)::generic_category_instance>, dso=0x7ffff7ff2280) at
../../../../gcc/libsanitizer/tsan/tsan_interceptors.cc:399
#6 0x00007ffff7efbea6 in __static_initialization_and_destruction_0
(__initialize_p=1, __priority=65535) at
../../../../gcc/libstdc++-v3/src/c++11/compatibility-c++0x.cc:214
#7 _GLOBAL__sub_I_compatibility_c__0x.cc(void) () at
../../../../gcc/libstdc++-v3/src/c++11/compatibility-c++0x.cc:257
#8 0x00007ffff7de73a3 in call_init (env=0x7fffffffe568, argv=0x7fffffffe558,
argc=1, l=<optimized out>) at dl-init.c:72
#9 _dl_init (main_map=0x7ffff7ffe130, argc=1, argv=0x7fffffffe558,
env=0x7fffffffe568) at dl-init.c:120
#10 0x00007ffff7dd6c5a in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#11 0x0000000000000001 in ?? ()
#12 0x00007fffffffe88a in ?? ()
#13 0x0000000000000000 in ?? ()
Using the static version libtsan.a works fine.
markus@x4 ~ % uname -snrvmio
Linux x4 4.9.0-rc3-00450-gffbcbfca846e-dirty #79 SMP Sat Nov 5 20:22:52 CET
2016 x86_64 AuthenticAMD GNU/Linux
markus@x4 ~ % /lib64/libc-2.24.90.so
GNU C Library (GNU libc) development release version 2.24.90, by Roland McGrath
et al.
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 7.0.0 20161031 (experimental).
Available extensions:
crypt add-on version 2.1 by Michael Glad and others
GNU Libidn by Simon Josefsson
Native POSIX Threads Library by Ulrich Drepper et al
BIND-8.2.3-T5B
libc ABIs: UNIQUE IFUNC
For bug reporting instructions, please see:
<http://www.gnu.org/software/libc/bugs.html>.
