tsan: move traces from tls into dedicated storage at fixed address
helps to reduce tls size (it's weird to have multi-MB tls)
will help with dynamically adjustable trace size
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@168783 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/tsan/rtl/tsan_rtl.h b/lib/tsan/rtl/tsan_rtl.h
index 967bf79..d3052cf 100644
--- a/lib/tsan/rtl/tsan_rtl.h
+++ b/lib/tsan/rtl/tsan_rtl.h
@@ -35,6 +35,7 @@
#include "tsan_trace.h"
#include "tsan_vector.h"
#include "tsan_report.h"
+#include "tsan_platform.h"
namespace __tsan {
@@ -533,11 +534,13 @@
#endif
void TraceSwitch(ThreadState *thr);
+uptr TraceTopPC(ThreadState *thr);
extern "C" void __tsan_trace_switch();
-void ALWAYS_INLINE INLINE TraceAddEvent(ThreadState *thr, u64 epoch,
+void ALWAYS_INLINE INLINE TraceAddEvent(ThreadState *thr, FastState fs,
EventType typ, uptr addr) {
StatInc(thr, StatEvents);
+ u64 epoch = fs.epoch();
if (UNLIKELY((epoch % kTracePartSize) == 0)) {
#ifndef TSAN_GO
HACKY_CALL(__tsan_trace_switch);
@@ -545,7 +548,8 @@
TraceSwitch(thr);
#endif
}
- Event *evp = &thr->trace.events[epoch % kTraceSize];
+ Event *trace = (Event*)GetThreadTrace(fs.tid());
+ Event *evp = &trace[epoch % kTraceSize];
Event ev = (u64)addr | ((u64)typ << 61);
*evp = ev;
}