https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #12 from Markus Trippelsdorf ---
Created attachment 40050
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40050=edit
unreduced testcase
Indeed it look like gcc simply ignores the attribute:
g++ -fPIC -O2 -g -c tsan_rtl.ii
vs.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
Markus Trippelsdorf changed:
What|Removed |Added
Status|RESOLVED|REOPENED
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #10 from Markus Trippelsdorf ---
It might make sense to add -fuse-ld=bfd to the AM_CXXFLAGS for now.
(lld is also broken.)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
Markus Trippelsdorf changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #8 from Markus Trippelsdorf ---
I've opened https://sourceware.org/bugzilla/show_bug.cgi?id=20805.
It would be good if someone could come up with a small testcase.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #7 from Markus Trippelsdorf ---
Disassembly of libtsan.so.0.0.0:
0006efd0 <_ZN6__tsan10InitializeEPNS_11ThreadStateE>:
if (is_initialized)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #6 from Markus Trippelsdorf ---
OK, it looks like a ld.gold bug. I normally always use ld.gold on my system.
However if I build gcc with ld.bfd then everything works fine.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #5 from Dmitry Vyukov ---
Markus, how do you configure and build gcc? Is there anything special?
Our tls accesses should not go through __tls_get_addr because we use
initial-exec attribute. __tls_get_addr vs indirect access through
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #4 from Markus Trippelsdorf ---
(gdb) up
#3 __tsan::Initialize (thr=thr@entry=0x76277780) at
../../../../gcc/libsanitizer/tsan/tsan_rtl.cc:331
331 ScopedIgnoreInterceptors ignore;
(gdb) disass
Dump of assembler code for
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #3 from Markus Trippelsdorf ---
(gdb) up
#2 0x76f8b00a in
__tsan::ScopedIgnoreInterceptors::ScopedIgnoreInterceptors (this=) at ../../../../gcc/libsanitizer/tsan/tsan_rtl.h:549
549
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
Maxim Ostapenko changed:
What|Removed |Added
CC||m.ostapenko at samsung dot com
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
Dmitry Vyukov changed:
What|Removed |Added
CC||dvyukov at google dot com
--- Comment
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