https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
--- Comment #7 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Disassembly of libtsan.so.0.0.0:
000000000006efd0 <_ZN6__tsan10InitializeEPNS_11ThreadStateE>:
if (is_initialized)
6efd0: 80 3d f5 8f 27 00 00 cmpb $0x0,0x278ff5(%rip) #
2e7fcc <_ZZN6__tsan10InitializeEPNS_11ThreadStateEE14is_initialized>
6efd7: 74 07 je 6efe0
<_ZN6__tsan10InitializeEPNS_11ThreadStateE+0x10>
6efd9: f3 c3 repz retq
6efdb: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
void Initialize(ThreadState *thr) {
6efe0: 41 57 push %r15
6efe2: 41 56 push %r14
6efe4: 41 55 push %r13
6efe6: 41 54 push %r12
6efe8: 55 push %rbp
6efe9: 53 push %rbx
6efea: 48 83 ec 48 sub $0x48,%rsp
is_initialized = true;
6efee: c6 05 d7 8f 27 00 01 movb $0x1,0x278fd7(%rip) #
2e7fcc <_ZZN6__tsan10InitializeEPNS_11ThreadStateEE14is_initialized>
6eff5: 48 89 7c 24 18 mov %rdi,0x18(%rsp)
6effa: 66 48 8d 3d 66 cf 06 data16 lea 0x6cf66(%rip),%rdi #
dbf68 <_ZN6__tsan22cur_thread_placeholderE@@Base+0xdbf28>
6f001: 00
cur_thread()->ignore_interceptors++;
6f002: 66 66 48 e8 16 3d fb data16 data16 callq 22d20
<__tls_get_addr@plt>
6f009: ff
SetCheckFailedCallback(TsanCheckFailed);
6f00a: 48 8d 3d 6f ce 00 00 lea 0xce6f(%rip),%rdi # 7be80
<_ZN6__tsan15TsanCheckFailedEPKciS1_yy>
SanitizerToolName = "ThreadSanitizer";
6f011: 48 8d 0d 3b df 03 00 lea 0x3df3b(%rip),%rcx #
acf53 <_fini+0x35ab>
vs.
000000000006d3e0 <_ZN6__tsan10InitializeEPNS_11ThreadStateE>:
if (is_initialized)
6d3e0: 80 3d 65 7a 47 00 00 cmpb $0x0,0x477a65(%rip) #
4e4e4c <_ZZN6__tsan10InitializeEPNS_11ThreadStateEE14is_initialized>
6d3e7: 74 07 je 6d3f0
<_ZN6__tsan10InitializeEPNS_11ThreadStateE+0x10>
6d3e9: f3 c3 repz retq
6d3eb: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
void Initialize(ThreadState *thr) {
6d3f0: 41 57 push %r15
6d3f2: 41 56 push %r14
6d3f4: 41 55 push %r13
6d3f6: 41 54 push %r12
6d3f8: 55 push %rbp
6d3f9: 53 push %rbx
6d3fa: 48 83 ec 48 sub $0x48,%rsp
is_initialized = true;
6d3fe: c6 05 47 7a 47 00 01 movb $0x1,0x477a47(%rip) #
4e4e4c <_ZZN6__tsan10InitializeEPNS_11ThreadStateEE14is_initialized>
6d405: 48 89 7c 24 18 mov %rdi,0x18(%rsp)
6d40a: 64 48 8b 04 25 00 00 mov %fs:0x0,%rax
6d411: 00 00
cur_thread()->ignore_interceptors++;
6d413: 48 03 05 be a7 26 00 add 0x26a7be(%rip),%rax #
2d7bd8 <.got+0x7c0>
SetCheckFailedCallback(TsanCheckFailed);
6d41a: 48 8d 3d 6f ce 00 00 lea 0xce6f(%rip),%rdi # 7a290
<_ZN6__tsan15TsanCheckFailedEPKciS1_yy>
SanitizerToolName = "ThreadSanitizer";
6d421: 48 8d 0d 64 09 04 00 lea 0x40964(%rip),%rcx #
add8c <_ZN6__tsan8MutexSet8kMaxSizeE+0x1034>
6d428: 83 80 98 02 02 00 01 addl $0x1,0x20298(%rax)
6d42f: 48 8d 05 22 df 26 00 lea 0x26df22(%rip),%rax #
2db358 <_ZN11__sanitizer17SanitizerToolNameE>
6d436: 48 89 08 mov %rcx,(%rax)
SetCheckFailedCallback(TsanCheckFailed);
6d439: e8 32 97 02 00 callq 96b70
<_ZN11__sanitizer22SetCheckFailedCallbackEPFvPKciS1_yyE>
ctx = new(ctx_placeholder) Context;
6d43e: 48 8d 3d fb 7a 47 00 lea 0x477afb(%rip),%rdi #
4e4f40 <_ZN6__tsanL15ctx_placeholderE>
6d445: e8 26 f9 ff ff callq 6cd70 <_ZN6__tsan7ContextC1Ev>
const char *options = GetEnv(SANITIZER_GO ? "GORACE" : "TSAN_OPTIONS");
