It was always there:<div><a href="http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc?view=log&pathrev=158542">http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc?view=log&pathrev=158542</a><br>
</div><div><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jun 27, 2012 at 10:19 PM, Chandler Carruth <span dir="ltr"><<a href="mailto:chandlerc@google.com" target="_blank">chandlerc@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="gmail_extra"><div class="gmail_quote"><div class="im">On Wed, Jun 27, 2012 at 10:35 AM, Dmitry Vyukov <span dir="ltr"><<a href="mailto:dvyukov@google.com" target="_blank">dvyukov@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: dvyukov<br>
Date: Wed Jun 27 12:35:35 2012<br>
New Revision: 159278<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=159278&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=159278&view=rev</a><br>
Log:<br>
tsan: remember and pass original ucontext to signal handlers (instead of a fabricated one)<br></blockquote><div><br></div></div><div>This comment doesn't match the commit really -- the commit adds a completely new file. Was this file just missing from the repo previously?</div>
<div><div class="h5">
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Added:<br>
compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc<br>
<br>
Added: compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc?rev=159278&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc?rev=159278&view=auto</a><br>
==============================================================================<br>
--- compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc (added)<br>
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc Wed Jun 27 12:35:35 2012<br>
@@ -0,0 +1,1587 @@<br>
+//===-- tsan_interceptors_linux.cc ----------------------------------------===//<br>
+//<br>
+// The LLVM Compiler Infrastructure<br>
+//<br>
+// This file is distributed under the University of Illinois Open Source<br>
+// License. See LICENSE.TXT for details.<br>
+//<br>
+//===----------------------------------------------------------------------===//<br>
+//<br>
+// This file is a part of ThreadSanitizer (TSan), a race detector.<br>
+//<br>
+//===----------------------------------------------------------------------===//<br>
+<br>
+#include "interception/interception.h"<br>
+#include "sanitizer_common/sanitizer_libc.h"<br>
+#include "sanitizer_common/sanitizer_placement_new.h"<br>
+#include "tsan_rtl.h"<br>
+#include "tsan_interface.h"<br>
+#include "tsan_atomic.h"<br>
+#include "tsan_platform.h"<br>
+#include "tsan_mman.h"<br>
+<br>
+using namespace __tsan; // NOLINT<br>
+<br>
+const int kSigCount = 128;<br>
+<br>
+struct my_siginfo_t {<br>
+ int opaque[128];<br>
+};<br>
+<br>
+struct sigset_t {<br>
+ u64 val[1024 / 8 / sizeof(u64)];<br>
+};<br>
+<br>
+struct ucontext_t {<br>
+ uptr opaque[117];<br>
+};<br>
+<br>
+extern "C" int pthread_attr_init(void *attr);<br>
+extern "C" int pthread_attr_destroy(void *attr);<br>
+extern "C" int pthread_attr_getdetachstate(void *attr, int *v);<br>
+extern "C" int pthread_attr_setstacksize(void *attr, uptr stacksize);<br>
+extern "C" int pthread_attr_getstacksize(void *attr, uptr *stacksize);<br>
+extern "C" int pthread_key_create(unsigned *key, void (*destructor)(void* v));<br>
+extern "C" int pthread_setspecific(unsigned key, const void *v);<br>
+extern "C" int pthread_mutexattr_gettype(void *a, int *type);<br>
+extern "C" int pthread_yield();<br>
+extern "C" int pthread_sigmask(int how, const sigset_t *set, sigset_t *oldset);<br>
+extern "C" int sigfillset(sigset_t *set);<br>
+extern "C" void *pthread_self();<br>
+extern "C" void _exit(int status);<br>
+extern "C" int __cxa_atexit(void (*func)(void *arg), void *arg, void *dso);<br>
+extern "C" int *__errno_location();<br>
+extern "C" int usleep(unsigned usec);<br>
+const int PTHREAD_MUTEX_RECURSIVE = 1;<br>
+const int PTHREAD_MUTEX_RECURSIVE_NP = 1;<br>
+const int kPthreadAttrSize = 56;<br>
+const int EINVAL = 22;<br>
+const int EBUSY = 16;<br>
+const int EPOLL_CTL_ADD = 1;<br>
+const int SIGILL = 4;<br>
+const int SIGABRT = 6;<br>
+const int SIGFPE = 8;<br>
+const int SIGSEGV = 11;<br>
+const int SIGPIPE = 13;<br>
+const int SIGBUS = 7;<br>
+void *const MAP_FAILED = (void*)-1;<br>
+const int PTHREAD_BARRIER_SERIAL_THREAD = -1;<br>
+const int MAP_FIXED = 0x10;<br>
+typedef long long_t; // NOLINT<br>
+<br>
+typedef void (*sighandler_t)(int sig);<br>
+<br>
+#define errno (*__errno_location())<br>
+<br>
+union pthread_attr_t {<br>
+ char size[kPthreadAttrSize];<br>
+ void *align;<br>
+};<br>
+<br>
+struct sigaction_t {<br>
+ union {<br>
+ sighandler_t sa_handler;<br>
+ void (*sa_sigaction)(int sig, my_siginfo_t *siginfo, void *uctx);<br>
+ };<br>
+ sigset_t sa_mask;<br>
+ int sa_flags;<br>
+ void (*sa_restorer)();<br>
+};<br>
+<br>
+const sighandler_t SIG_DFL = (sighandler_t)0;<br>
+const sighandler_t SIG_IGN = (sighandler_t)1;<br>
+const sighandler_t SIG_ERR = (sighandler_t)-1;<br>
+const int SA_SIGINFO = 4;<br>
+const int SIG_SETMASK = 2;<br>
+<br>
+static sigaction_t sigactions[kSigCount];<br>
+<br>
+namespace __tsan {<br>
+struct SignalDesc {<br>
+ bool armed;<br>
+ bool sigaction;<br>
+ my_siginfo_t siginfo;<br>
+ ucontext_t ctx;<br>
+};<br>
+<br>
+struct SignalContext {<br>
+ int int_signal_send;<br>
+ int pending_signal_count;<br>
+ SignalDesc pending_signals[kSigCount];<br>
+};<br>
+}<br>
+<br>
+static SignalContext *SigCtx(ThreadState *thr) {<br>
+ SignalContext *ctx = (SignalContext*)thr->signal_ctx;<br>
+ if (ctx == 0) {<br>
+ ScopedInRtl in_rtl;<br>
+ ctx = (SignalContext*)internal_alloc(<br>
+ MBlockSignal, sizeof(*ctx));<br>
+ internal_memset(ctx, 0, sizeof(*ctx));<br>
+ thr->signal_ctx = ctx;<br>
+ }<br>
+ return ctx;<br>
+}<br>
+<br>
+static unsigned g_thread_finalize_key;<br>
+<br>
+static void process_pending_signals(ThreadState *thr);<br>
+<br>
+class ScopedInterceptor {<br>
+ public:<br>
+ ScopedInterceptor(ThreadState *thr, const char *fname, uptr pc)<br>
+ : thr_(thr)<br>
+ , in_rtl_(thr->in_rtl) {<br>
+ if (thr_->in_rtl == 0) {<br>
+ Initialize(thr);<br>
+ FuncEntry(thr, pc);<br>
+ thr_->in_rtl++;<br>
+ DPrintf("#%d: intercept %s()\n", thr_->tid, fname);<br>
+ } else {<br>
+ thr_->in_rtl++;<br>
+ }<br>
+ }<br>
+<br>
+ ~ScopedInterceptor() {<br>
+ thr_->in_rtl--;<br>
+ if (thr_->in_rtl == 0) {<br>
+ FuncExit(thr_);<br>
+ process_pending_signals(thr_);<br>
+ }<br>
+ CHECK_EQ(in_rtl_, thr_->in_rtl);<br>
+ }<br>
+<br>
+ private:<br>
+ ThreadState *const thr_;<br>
+ const int in_rtl_;<br>
+};<br>
+<br>
+#define SCOPED_INTERCEPTOR_RAW(func, ...) \<br>
+ ThreadState *thr = cur_thread(); \<br>
+ StatInc(thr, StatInterceptor); \<br>
+ StatInc(thr, StatInt_##func); \<br>
+ ScopedInterceptor si(thr, #func, \<br>
+ (__sanitizer::uptr)__builtin_return_address(0)); \<br>
+ const uptr pc = (uptr)&func; \<br>
+ (void)pc; \<br>
+/**/<br>
+<br>
+#define SCOPED_TSAN_INTERCEPTOR(func, ...) \<br>
+ SCOPED_INTERCEPTOR_RAW(func, __VA_ARGS__); \<br>
+ if (thr->in_rtl > 1) \<br>
+ return REAL(func)(__VA_ARGS__); \<br>
+/**/<br>
+<br>
+#define TSAN_INTERCEPTOR(ret, func, ...) INTERCEPTOR(ret, func, __VA_ARGS__)<br>
+#define TSAN_INTERCEPT(func) INTERCEPT_FUNCTION(func)<br>
+<br>
+// May be overriden by front-end.<br>
+extern "C" void WEAK __tsan_malloc_hook(void *ptr, uptr size) {<br>
+ (void)ptr;<br>
+ (void)size;<br>
+}<br>
+<br>
+extern "C" void WEAK __tsan_free_hook(void *ptr) {<br>
+ (void)ptr;<br>
+}<br>
+<br>
+static void invoke_malloc_hook(void *ptr, uptr size) {<br>
+ Context *ctx = CTX();<br>
+ ThreadState *thr = cur_thread();<br>
+ if (ctx == 0 || !ctx->initialized || thr->in_rtl)<br>
+ return;<br>
+ __tsan_malloc_hook(ptr, size);<br>
+}<br>
+<br>
+static void invoke_free_hook(void *ptr) {<br>
+ Context *ctx = CTX();<br>
+ ThreadState *thr = cur_thread();<br>
+ if (ctx == 0 || !ctx->initialized || thr->in_rtl)<br>
+ return;<br>
+ __tsan_free_hook(ptr);<br>
+}<br>
+<br>
+class AtExitContext {<br>
+ public:<br>
+ AtExitContext()<br>
+ : mtx_(MutexTypeAtExit, StatMtxAtExit)<br>
+ , pos_() {<br>
+ }<br>
+<br>
+ typedef void(*atexit_t)();<br>
+<br>
+ int atexit(ThreadState *thr, uptr pc, atexit_t f) {<br>
+ Lock l(&mtx_);<br>
+ if (pos_ == kMaxAtExit)<br>
+ return 1;<br>
+ Release(thr, pc, (uptr)this);<br>
+ stack_[pos_] = f;<br>
+ pos_++;<br>
+ return 0;<br>
+ }<br>
+<br>
+ void exit(ThreadState *thr, uptr pc) {<br>
+ CHECK_EQ(thr->in_rtl, 0);<br>
+ for (;;) {<br>
+ atexit_t f = 0;<br>
+ {<br>
+ Lock l(&mtx_);<br>
+ if (pos_) {<br>
+ pos_--;<br>
+ f = stack_[pos_];<br>
+ ScopedInRtl in_rtl;<br>
+ Acquire(thr, pc, (uptr)this);<br>
+ }<br>
+ }<br>
+ if (f == 0)<br>
+ break;<br>
+ DPrintf("#%d: executing atexit func %p\n", thr->tid, f);<br>
+ CHECK_EQ(thr->in_rtl, 0);<br>
+ f();<br>
+ }<br>
+ }<br>
+<br>
+ private:<br>
+ static const int kMaxAtExit = 128;<br>
+ Mutex mtx_;<br>
+ atexit_t stack_[kMaxAtExit];<br>
+ int pos_;<br>
+};<br>
+<br>
+static AtExitContext *atexit_ctx;<br>
+<br>
+static void finalize(void *arg) {<br>
+ ThreadState * thr = cur_thread();<br>
+ uptr pc = 0;<br>
+ atexit_ctx->exit(thr, pc);<br>
+ {<br>
+ ScopedInRtl in_rtl;<br>
+ DestroyAndFree(atexit_ctx);<br>
+ usleep(flags()->atexit_sleep_ms * 1000);<br>
+ }<br>
+ int status = Finalize(cur_thread());<br>
+ if (status)<br>
+ _exit(status);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, atexit, void (*f)()) {<br>
+ SCOPED_TSAN_INTERCEPTOR(atexit, f);<br>
+ return atexit_ctx->atexit(thr, pc, f);<br>
+ return 0;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void, longjmp, void *env, int val) {<br>
+ SCOPED_TSAN_INTERCEPTOR(longjmp, env, val);<br>
+ TsanPrintf("ThreadSanitizer: longjmp() is not supported\n");<br>
+ Die();<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void, siglongjmp, void *env, int val) {<br>
+ SCOPED_TSAN_INTERCEPTOR(siglongjmp, env, val);<br>
+ TsanPrintf("ThreadSanitizer: siglongjmp() is not supported\n");<br>
+ Die();<br>
+}<br>
+<br>
+static uptr fd2addr(int fd) {<br>
+ (void)fd;<br>
+ static u64 addr;<br>
+ return (uptr)&addr;<br>
+}<br>
+<br>
+static uptr epollfd2addr(int fd) {<br>
+ (void)fd;<br>
+ static u64 addr;<br>
+ return (uptr)&addr;<br>
+}<br>
+<br>
+static uptr file2addr(char *path) {<br>
+ (void)path;<br>
+ static u64 addr;<br>
+ return (uptr)&addr;<br>
+}<br>
+<br>
+static uptr dir2addr(char *path) {<br>
+ (void)path;<br>
+ static u64 addr;<br>
+ return (uptr)&addr;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, malloc, uptr size) {<br>
+ void *p = 0;<br>
+ {<br>
+ SCOPED_INTERCEPTOR_RAW(malloc, size);<br>
+ p = user_alloc(thr, pc, size);<br>
+ }<br>
+ invoke_malloc_hook(p, size);<br>
+ return p;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, calloc, uptr size, uptr n) {<br>
+ void *p = 0;<br>
+ {<br>
+ SCOPED_INTERCEPTOR_RAW(calloc, size, n);<br>
+ p = user_alloc(thr, pc, n * size);<br>
+ REAL(memset)(p, 0, n * size);<br>
+ }<br>
+ invoke_malloc_hook(p, n * size);<br>
+ return p;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, realloc, void *p, uptr size) {<br>
+ if (p)<br>
+ invoke_free_hook(p);<br>
+ {<br>
+ SCOPED_INTERCEPTOR_RAW(realloc, p, size);<br>
+ p = user_realloc(thr, pc, p, size);<br>
+ }<br>
+ invoke_malloc_hook(p, size);<br>
+ return p;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void, free, void *p) {<br>
+ if (p == 0)<br>
+ return;<br>
+ invoke_free_hook(p);<br>
+ SCOPED_INTERCEPTOR_RAW(free, p);<br>
+ user_free(thr, pc, p);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void, cfree, void *p) {<br>
+ if (p == 0)<br>
+ return;<br>
+ invoke_free_hook(p);<br>
+ SCOPED_INTERCEPTOR_RAW(cfree, p);<br>
+ user_free(thr, pc, p);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(uptr, strlen, const void *s) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strlen, s);<br>
+ uptr len = REAL(strlen)(s);<br>
+ MemoryAccessRange(thr, pc, (uptr)s, len + 1, false);<br>
+ return len;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, memset, void *dst, int v, uptr size) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memset, dst, v, size);<br>
+ MemoryAccessRange(thr, pc, (uptr)dst, size, true);<br>
+ return REAL(memset)(dst, v, size);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, memcpy, void *dst, const void *src, uptr size) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memcpy, dst, src, size);<br>
+ MemoryAccessRange(thr, pc, (uptr)dst, size, true);<br>
+ MemoryAccessRange(thr, pc, (uptr)src, size, false);<br>
+ return REAL(memcpy)(dst, src, size);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, strcmp, const char *s1, const char *s2) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strcmp, s1, s2);<br>
+ uptr len = 0;<br>
+ for (; s1[len] && s2[len]; len++) {<br>
+ if (s1[len] != s2[len])<br>
+ break;<br>
+ }<br>
+ MemoryAccessRange(thr, pc, (uptr)s1, len + 1, false);<br>
+ MemoryAccessRange(thr, pc, (uptr)s2, len + 1, false);<br>
+ return s1[len] - s2[len];<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, strncmp, const char *s1, const char *s2, uptr n) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strncmp, s1, s2, n);<br>
+ uptr len = 0;<br>
+ for (; len < n && s1[len] && s2[len]; len++) {<br>
+ if (s1[len] != s2[len])<br>
+ break;<br>
+ }<br>
+ MemoryAccessRange(thr, pc, (uptr)s1, len < n ? len + 1 : n, false);<br>
+ MemoryAccessRange(thr, pc, (uptr)s2, len < n ? len + 1 : n, false);<br>
+ return len == n ? 0 : s1[len] - s2[len];<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, memchr, void *s, int c, uptr n) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memchr, s, c, n);<br>
+ void *res = REAL(memchr)(s, c, n);<br>
+ uptr len = res ? (char*)res - (char*)s + 1 : n;<br>
+ MemoryAccessRange(thr, pc, (uptr)s, len, false);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, memrchr, char *s, int c, uptr n) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memrchr, s, c, n);<br>
+ MemoryAccessRange(thr, pc, (uptr)s, n, false);<br>
+ return REAL(memrchr)(s, c, n);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, memmove, void *dst, void *src, uptr n) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memmove, dst, src, n);<br>
+ MemoryAccessRange(thr, pc, (uptr)dst, n, true);<br>
+ MemoryAccessRange(thr, pc, (uptr)src, n, false);<br>
+ return REAL(memmove)(dst, src, n);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, memcmp, const void *s1, const void *s2, uptr n) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memcmp, s1, s2, n);<br>
+ int res = 0;<br>
+ uptr len = 0;<br>
+ for (; len < n; len++) {<br>
+ if ((res = ((unsigned char*)s1)[len] - ((unsigned char*)s2)[len]))<br>
+ break;<br>
+ }<br>
+ MemoryAccessRange(thr, pc, (uptr)s1, len < n ? len + 1 : n, false);<br>
+ MemoryAccessRange(thr, pc, (uptr)s2, len < n ? len + 1 : n, false);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, strchr, void *s, int c) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strchr, s, c);<br>
+ void *res = REAL(strchr)(s, c);<br>
+ uptr len = res ? (char*)res - (char*)s + 1 : REAL(strlen)(s) + 1;<br>
+ MemoryAccessRange(thr, pc, (uptr)s, len, false);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, strchrnul, void *s, int c) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strchrnul, s, c);<br>
+ void *res = REAL(strchrnul)(s, c);<br>
+ uptr len = (char*)res - (char*)s + 1;<br>
+ MemoryAccessRange(thr, pc, (uptr)s, len, false);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, strrchr, void *s, int c) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strrchr, s, c);<br>
+ MemoryAccessRange(thr, pc, (uptr)s, REAL(strlen)(s) + 1, false);<br>
+ return REAL(strrchr)(s, c);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, strcpy, void *dst, const void *src) { // NOLINT<br>
+ SCOPED_TSAN_INTERCEPTOR(strcpy, dst, src); // NOLINT<br>
+ uptr srclen = REAL(strlen)(src);<br>
+ MemoryAccessRange(thr, pc, (uptr)dst, srclen + 1, true);<br>
+ MemoryAccessRange(thr, pc, (uptr)src, srclen + 1, false);<br>
+ return REAL(strcpy)(dst, src); // NOLINT<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, strncpy, void *dst, void *src, uptr n) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strncpy, dst, src, n);<br>
+ uptr srclen = REAL(strlen)(src);<br>
+ MemoryAccessRange(thr, pc, (uptr)dst, n, true);<br>
+ MemoryAccessRange(thr, pc, (uptr)src, min(srclen + 1, n), false);<br>
+ return REAL(strncpy)(dst, src, n);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(const char*, strstr, const char *s1, const char *s2) {<br>
+ SCOPED_TSAN_INTERCEPTOR(strstr, s1, s2);<br>
+ const char *res = REAL(strstr)(s1, s2);<br>
+ uptr len1 = REAL(strlen)(s1);<br>
+ uptr len2 = REAL(strlen)(s2);<br>
+ MemoryAccessRange(thr, pc, (uptr)s1, len1 + 1, false);<br>
+ MemoryAccessRange(thr, pc, (uptr)s2, len2 + 1, false);<br>
+ return res;<br>
+}<br>
+<br>
+static bool fix_mmap_addr(void **addr, long_t sz, int flags) {<br>
+ if (*addr) {<br>
+ if (!IsAppMem((uptr)*addr) || !IsAppMem((uptr)*addr + sz - 1)) {<br>
+ if (flags & MAP_FIXED) {<br>
+ errno = EINVAL;<br>
+ return false;<br>
+ } else {<br>
+ *addr = 0;<br>
+ }<br>
+ }<br>
+ }<br>
+ return true;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, mmap, void *addr, long_t sz, int prot,<br>
+ int flags, int fd, unsigned off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(mmap, addr, sz, prot, flags, fd, off);<br>
+ if (!fix_mmap_addr(&addr, sz, flags))<br>
+ return MAP_FAILED;<br>
+ void *res = REAL(mmap)(addr, sz, prot, flags, fd, off);<br>
+ if (res != MAP_FAILED) {<br>
+ MemoryResetRange(thr, pc, (uptr)res, sz);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, mmap64, void *addr, long_t sz, int prot,<br>
+ int flags, int fd, u64 off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(mmap64, addr, sz, prot, flags, fd, off);<br>
+ if (!fix_mmap_addr(&addr, sz, flags))<br>
+ return MAP_FAILED;<br>
+ void *res = REAL(mmap64)(addr, sz, prot, flags, fd, off);<br>
+ if (res != MAP_FAILED) {<br>
+ MemoryResetRange(thr, pc, (uptr)res, sz);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, munmap, void *addr, long_t sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(munmap, addr, sz);<br>
+ int res = REAL(munmap)(addr, sz);<br>
+ return res;<br>
+}<br>
+<br>
+#ifdef __LP64__<br>
+<br>
+// void *operator new(size_t)<br>
+TSAN_INTERCEPTOR(void*, _Znwm, uptr sz) {<br>
+ void *p = 0;<br>
+ {<br>
+ SCOPED_TSAN_INTERCEPTOR(_Znwm, sz);<br>
+ p = user_alloc(thr, pc, sz);<br>
+ }<br>
+ invoke_malloc_hook(p, sz);<br>
+ return p;<br>
+}<br>
+<br>
+// void *operator new(size_t, nothrow_t)<br>
+TSAN_INTERCEPTOR(void*, _ZnwmRKSt9nothrow_t, uptr sz) {<br>
+ void *p = 0;<br>
+ {<br>
+ SCOPED_TSAN_INTERCEPTOR(_ZnwmRKSt9nothrow_t, sz);<br>
+ p = user_alloc(thr, pc, sz);<br>
+ }<br>
+ invoke_malloc_hook(p, sz);<br>
+ return p;<br>
+}<br>
+<br>
+// void *operator new[](size_t)<br>
+TSAN_INTERCEPTOR(void*, _Znam, uptr sz) {<br>
+ void *p = 0;<br>
+ {<br>
+ SCOPED_TSAN_INTERCEPTOR(_Znam, sz);<br>
+ p = user_alloc(thr, pc, sz);<br>
+ }<br>
+ invoke_malloc_hook(p, sz);<br>
+ return p;<br>
+}<br>
+<br>
+// void *operator new[](size_t, nothrow_t)<br>
+TSAN_INTERCEPTOR(void*, _ZnamRKSt9nothrow_t, uptr sz) {<br>
+ void *p = 0;<br>
+ {<br>
+ SCOPED_TSAN_INTERCEPTOR(_ZnamRKSt9nothrow_t, sz);<br>
+ p = user_alloc(thr, pc, sz);<br>
+ }<br>
+ invoke_malloc_hook(p, sz);<br>
+ return p;<br>
+}<br>
+<br>
+#else<br>
+#error "Not implemented"<br>
+#endif<br>
+<br>
+// void operator delete(void*)<br>
+TSAN_INTERCEPTOR(void, _ZdlPv, void *p) {<br>
+ if (p == 0)<br>
+ return;<br>
+ invoke_free_hook(p);<br>
+ SCOPED_TSAN_INTERCEPTOR(_ZdlPv, p);<br>
+ user_free(thr, pc, p);<br>
+}<br>
+<br>
+// void operator delete(void*, nothrow_t)<br>
+TSAN_INTERCEPTOR(void, _ZdlPvRKSt9nothrow_t, void *p) {<br>
+ if (p == 0)<br>
+ return;<br>
+ invoke_free_hook(p);<br>
+ SCOPED_TSAN_INTERCEPTOR(_ZdlPvRKSt9nothrow_t, p);<br>
+ user_free(thr, pc, p);<br>
+}<br>
+<br>
+// void operator delete[](void*)<br>
+TSAN_INTERCEPTOR(void, _ZdaPv, void *p) {<br>
+ if (p == 0)<br>
+ return;<br>
+ invoke_free_hook(p);<br>
+ SCOPED_TSAN_INTERCEPTOR(_ZdaPv, p);<br>
+ user_free(thr, pc, p);<br>
+}<br>
+<br>
+// void operator delete[](void*, nothrow_t)<br>
+TSAN_INTERCEPTOR(void, _ZdaPvRKSt9nothrow_t, void *p) {<br>
+ if (p == 0)<br>
+ return;<br>
+ invoke_free_hook(p);<br>
+ SCOPED_TSAN_INTERCEPTOR(_ZdaPvRKSt9nothrow_t, p);<br>
+ user_free(thr, pc, p);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, memalign, uptr align, uptr sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(memalign, align, sz);<br>
+ return user_alloc_aligned(thr, pc, sz, align);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, valloc, uptr sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(valloc, sz);<br>
+ return user_alloc_aligned(thr, pc, sz, kPageSize);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, pvalloc, uptr sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pvalloc, sz);<br>
+ sz = RoundUp(sz, kPageSize);<br>
+ return user_alloc_aligned(thr, pc, sz, kPageSize);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, posix_memalign, void **memptr, uptr align, uptr sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(posix_memalign, memptr, align, sz);<br>
+ *memptr = user_alloc_aligned(thr, pc, sz, align);<br>
+ return 0;<br>
+}<br>
+<br>
+// Used in thread-safe function static initialization.<br>
+TSAN_INTERCEPTOR(int, __cxa_guard_acquire, char *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(__cxa_guard_acquire, m);<br>
+ int res = REAL(__cxa_guard_acquire)(m);<br>
+ if (res) {<br>
+ // This thread does the init.<br>
+ } else {<br>
+ Acquire(thr, pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void, __cxa_guard_release, char *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(__cxa_guard_release, m);<br>
+ Release(thr, pc, (uptr)m);<br>
+ REAL(__cxa_guard_release)(m);<br>
+}<br>
+<br>
+static void thread_finalize(void *v) {<br>
+ uptr iter = (uptr)v;<br>
+ if (iter > 1) {<br>
+ if (pthread_setspecific(g_thread_finalize_key, (void*)(iter - 1))) {<br>
+ TsanPrintf("ThreadSanitizer: failed to set thread key\n");<br>
+ Die();<br>
+ }<br>
+ return;<br>
+ }<br>
+ {<br>
+ ScopedInRtl in_rtl;<br>
+ ThreadState *thr = cur_thread();<br>
+ SignalContext *sctx = thr->signal_ctx;<br>
+ ThreadFinish(thr);<br>
+ if (sctx)<br>
+ internal_free(sctx);<br>
+ }<br>
+}<br>
+<br>
+<br>
+struct ThreadParam {<br>
+ void* (*callback)(void *arg);<br>
+ void *param;<br>
+ atomic_uintptr_t tid;<br>
+};<br>
+<br>
+extern "C" void *__tsan_thread_start_func(void *arg) {<br>
+ ThreadParam *p = (ThreadParam*)arg;<br>
+ void* (*callback)(void *arg) = p->callback;<br>
+ void *param = p->param;<br>
+ int tid = 0;<br>
+ {<br>
+ ThreadState *thr = cur_thread();<br>
+ ScopedInRtl in_rtl;<br>
+ if (pthread_setspecific(g_thread_finalize_key, (void*)4)) {<br>
+ TsanPrintf("ThreadSanitizer: failed to set thread key\n");<br>
+ Die();<br>
+ }<br>
+ while ((tid = atomic_load(&p->tid, memory_order_acquire)) == 0)<br>
+ pthread_yield();<br>
+ atomic_store(&p->tid, 0, memory_order_release);<br>
+ ThreadStart(thr, tid);<br>
+ CHECK_EQ(thr->in_rtl, 1);<br>
+ }<br>
+ void *res = callback(param);<br>
+ // Prevent the callback from being tail called,<br>
+ // it mixes up stack traces.<br>
+ volatile int foo = 42;<br>
+ foo++;<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_create,<br>
+ void *th, void *attr, void *(*callback)(void*), void * param) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_create, th, attr, callback, param);<br>
+ pthread_attr_t myattr;<br>
+ if (attr == 0) {<br>
+ pthread_attr_init(&myattr);<br>
+ attr = &myattr;<br>
+ }<br>
+ int detached = 0;<br>
+ pthread_attr_getdetachstate(attr, &detached);<br>
+ uptr stacksize = 0;<br>
+ pthread_attr_getstacksize(attr, &stacksize);<br>
+ // We place the huge ThreadState object into TLS, account for that.<br>
+ const uptr minstacksize = GetTlsSize() + 128*1024;<br>
+ if (stacksize < minstacksize) {<br>
+ DPrintf("ThreadSanitizer: stacksize %zu->%zu\n", stacksize, minstacksize);<br>
+ pthread_attr_setstacksize(attr, minstacksize);<br>
+ }<br>
+ ThreadParam p;<br>
+ p.callback = callback;<br>
+ p.param = param;<br>
+ atomic_store(&p.tid, 0, memory_order_relaxed);<br>
+ int res = REAL(pthread_create)(th, attr, __tsan_thread_start_func, &p);<br>
+ if (res == 0) {<br>
+ int tid = ThreadCreate(cur_thread(), pc, *(uptr*)th, detached);<br>
+ CHECK_NE(tid, 0);<br>
+ atomic_store(&p.tid, tid, memory_order_release);<br>
+ while (atomic_load(&p.tid, memory_order_acquire) != 0)<br>
+ pthread_yield();<br>
+ }<br>
+ if (attr == &myattr)<br>
+ pthread_attr_destroy(&myattr);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_join, void *th, void **ret) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_join, th, ret);<br>
+ int tid = ThreadTid(thr, pc, (uptr)th);<br>
+ int res = REAL(pthread_join)(th, ret);<br>
+ if (res == 0) {<br>
+ ThreadJoin(cur_thread(), pc, tid);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_detach, void *th) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_detach, th);<br>
+ int tid = ThreadTid(thr, pc, (uptr)th);<br>
+ int res = REAL(pthread_detach)(th);<br>
+ if (res == 0) {<br>
+ ThreadDetach(cur_thread(), pc, tid);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_mutex_init, void *m, void *a) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_mutex_init, m, a);<br>
+ int res = REAL(pthread_mutex_init)(m, a);<br>
+ if (res == 0) {<br>
+ bool recursive = false;<br>
+ if (a) {<br>
+ int type = 0;<br>
+ if (pthread_mutexattr_gettype(a, &type) == 0)<br>
+ recursive = (type == PTHREAD_MUTEX_RECURSIVE<br>
+ || type == PTHREAD_MUTEX_RECURSIVE_NP);<br>
+ }<br>
+ MutexCreate(cur_thread(), pc, (uptr)m, false, recursive);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_mutex_destroy, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_mutex_destroy, m);<br>
+ int res = REAL(pthread_mutex_destroy)(m);<br>
+ if (res == 0 || res == EBUSY) {<br>
+ MutexDestroy(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_mutex_lock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_mutex_lock, m);<br>
+ int res = REAL(pthread_mutex_lock)(m);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_mutex_trylock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_mutex_trylock, m);<br>
+ int res = REAL(pthread_mutex_trylock)(m);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_mutex_timedlock, void *m, void *abstime) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_mutex_timedlock, m, abstime);<br>
+ int res = REAL(pthread_mutex_timedlock)(m, abstime);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_mutex_unlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_mutex_unlock, m);<br>
+ MutexUnlock(cur_thread(), pc, (uptr)m);<br>
+ int res = REAL(pthread_mutex_unlock)(m);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_spin_init, void *m, int pshared) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_spin_init, m, pshared);<br>
+ int res = REAL(pthread_spin_init)(m, pshared);<br>
+ if (res == 0) {<br>
+ MutexCreate(cur_thread(), pc, (uptr)m, false, false);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_spin_destroy, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_spin_destroy, m);<br>
+ int res = REAL(pthread_spin_destroy)(m);<br>
+ if (res == 0) {<br>
+ MutexDestroy(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_spin_lock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_spin_lock, m);<br>
+ int res = REAL(pthread_spin_lock)(m);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_spin_trylock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_spin_trylock, m);<br>
+ int res = REAL(pthread_spin_trylock)(m);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_spin_unlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_spin_unlock, m);<br>
+ MutexUnlock(cur_thread(), pc, (uptr)m);<br>
+ int res = REAL(pthread_spin_unlock)(m);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_init, void *m, void *a) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_init, m, a);<br>
+ int res = REAL(pthread_rwlock_init)(m, a);<br>
+ if (res == 0) {<br>
+ MutexCreate(cur_thread(), pc, (uptr)m, true, false);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_destroy, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_destroy, m);<br>
+ int res = REAL(pthread_rwlock_destroy)(m);<br>
+ if (res == 0) {<br>
+ MutexDestroy(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_rdlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_rdlock, m);<br>
+ int res = REAL(pthread_rwlock_rdlock)(m);<br>
+ if (res == 0) {<br>
+ MutexReadLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_tryrdlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_tryrdlock, m);<br>
+ int res = REAL(pthread_rwlock_tryrdlock)(m);<br>
+ if (res == 0) {<br>
+ MutexReadLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_timedrdlock, void *m, void *abstime) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_timedrdlock, m, abstime);<br>
+ int res = REAL(pthread_rwlock_timedrdlock)(m, abstime);<br>
+ if (res == 0) {<br>
+ MutexReadLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_wrlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_wrlock, m);<br>
+ int res = REAL(pthread_rwlock_wrlock)(m);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_trywrlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_trywrlock, m);<br>
+ int res = REAL(pthread_rwlock_trywrlock)(m);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_timedwrlock, void *m, void *abstime) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_timedwrlock, m, abstime);<br>
+ int res = REAL(pthread_rwlock_timedwrlock)(m, abstime);<br>
+ if (res == 0) {<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_rwlock_unlock, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_unlock, m);<br>
+ MutexReadOrWriteUnlock(cur_thread(), pc, (uptr)m);<br>
+ int res = REAL(pthread_rwlock_unlock)(m);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_cond_init, void *c, void *a) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_cond_init, c, a);<br>
+ int res = REAL(pthread_cond_init)(c, a);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_cond_destroy, void *c) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_cond_destroy, c);<br>
+ int res = REAL(pthread_cond_destroy)(c);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_cond_signal, void *c) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_cond_signal, c);<br>
+ int res = REAL(pthread_cond_signal)(c);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_cond_broadcast, void *c) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_cond_broadcast, c);<br>
+ int res = REAL(pthread_cond_broadcast)(c);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_cond_wait, void *c, void *m) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_cond_wait, c, m);<br>
+ MutexUnlock(cur_thread(), pc, (uptr)m);<br>
+ int res = REAL(pthread_cond_wait)(c, m);<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_cond_timedwait, void *c, void *m, void *abstime) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_cond_timedwait, c, m, abstime);<br>
+ MutexUnlock(cur_thread(), pc, (uptr)m);<br>
+ int res = REAL(pthread_cond_timedwait)(c, m, abstime);<br>
+ MutexLock(cur_thread(), pc, (uptr)m);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_barrier_init, void *b, void *a, unsigned count) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_barrier_init, b, a, count);<br>
+ MemoryWrite1Byte(thr, pc, (uptr)b);<br>
+ int res = REAL(pthread_barrier_init)(b, a, count);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_barrier_destroy, void *b) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_barrier_destroy, b);<br>
+ MemoryWrite1Byte(thr, pc, (uptr)b);<br>
+ int res = REAL(pthread_barrier_destroy)(b);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_barrier_wait, void *b) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_barrier_wait, b);<br>
+ Release(cur_thread(), pc, (uptr)b);<br>
+ MemoryRead1Byte(thr, pc, (uptr)b);<br>
+ int res = REAL(pthread_barrier_wait)(b);<br>
+ MemoryRead1Byte(thr, pc, (uptr)b);<br>
+ if (res == 0 || res == PTHREAD_BARRIER_SERIAL_THREAD) {<br>
+ Acquire(cur_thread(), pc, (uptr)b);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_once, void *o, void (*f)()) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_once, o, f);<br>
+ if (o == 0 || f == 0)<br>
+ return EINVAL;<br>
+ atomic_uint32_t *a = static_cast<atomic_uint32_t*>(o);<br>
+ u32 v = atomic_load(a, memory_order_acquire);<br>
+ if (v == 0 && atomic_compare_exchange_strong(a, &v, 1,<br>
+ memory_order_relaxed)) {<br>
+ const int old_in_rtl = thr->in_rtl;<br>
+ thr->in_rtl = 0;<br>
+ (*f)();<br>
+ CHECK_EQ(thr->in_rtl, 0);<br>
+ thr->in_rtl = old_in_rtl;<br>
+ Release(cur_thread(), pc, (uptr)o);<br>
+ atomic_store(a, 2, memory_order_release);<br>
+ } else {<br>
+ while (v != 2) {<br>
+ pthread_yield();<br>
+ v = atomic_load(a, memory_order_acquire);<br>
+ }<br>
+ Acquire(cur_thread(), pc, (uptr)o);<br>
+ }<br>
+ return 0;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_init, void *s, int pshared, unsigned value) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_init, s, pshared, value);<br>
+ int res = REAL(sem_init)(s, pshared, value);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_destroy, void *s) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_destroy, s);<br>
+ int res = REAL(sem_destroy)(s);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_wait, void *s) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_wait, s);<br>
+ int res = REAL(sem_wait)(s);<br>
+ if (res == 0) {<br>
+ Acquire(cur_thread(), pc, (uptr)s);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_trywait, void *s) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_trywait, s);<br>
+ int res = REAL(sem_trywait)(s);<br>
+ if (res == 0) {<br>
+ Acquire(cur_thread(), pc, (uptr)s);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_timedwait, void *s, void *abstime) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_timedwait, s, abstime);<br>
+ int res = REAL(sem_timedwait)(s, abstime);<br>
+ if (res == 0) {<br>
+ Acquire(cur_thread(), pc, (uptr)s);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_post, void *s) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_post, s);<br>
+ Release(cur_thread(), pc, (uptr)s);<br>
+ int res = REAL(sem_post)(s);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sem_getvalue, void *s, int *sval) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sem_getvalue, s, sval);<br>
+ int res = REAL(sem_getvalue)(s, sval);<br>
+ if (res == 0) {<br>
+ Acquire(cur_thread(), pc, (uptr)s);<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, read, int fd, void *buf, long_t sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(read, fd, buf, sz);<br>
+ int res = REAL(read)(fd, buf, sz);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, pread, int fd, void *buf, long_t sz, unsigned off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pread, fd, buf, sz, off);<br>
+ int res = REAL(pread)(fd, buf, sz, off);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, pread64, int fd, void *buf, long_t sz, u64 off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pread64, fd, buf, sz, off);<br>
+ int res = REAL(pread64)(fd, buf, sz, off);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, readv, int fd, void *vec, int cnt) {<br>
+ SCOPED_TSAN_INTERCEPTOR(readv, fd, vec, cnt);<br>
+ int res = REAL(readv)(fd, vec, cnt);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, preadv64, int fd, void *vec, int cnt, u64 off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(preadv64, fd, vec, cnt, off);<br>
+ int res = REAL(preadv64)(fd, vec, cnt, off);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, write, int fd, void *buf, long_t sz) {<br>
+ SCOPED_TSAN_INTERCEPTOR(write, fd, buf, sz);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(write)(fd, buf, sz);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, pwrite, int fd, void *buf, long_t sz, unsigned off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pwrite, fd, buf, sz, off);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(pwrite)(fd, buf, sz, off);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, pwrite64, int fd, void *buf, long_t sz, unsigned off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pwrite64, fd, buf, sz, off);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(pwrite64)(fd, buf, sz, off);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, writev, int fd, void *vec, int cnt) {<br>
+ SCOPED_TSAN_INTERCEPTOR(writev, fd, vec, cnt);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(writev)(fd, vec, cnt);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, pwritev64, int fd, void *vec, int cnt, u64 off) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pwritev64, fd, vec, cnt, off);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(pwritev64)(fd, vec, cnt, off);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, send, int fd, void *buf, long_t len, int flags) {<br>
+ SCOPED_TSAN_INTERCEPTOR(send, fd, buf, len, flags);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(send)(fd, buf, len, flags);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, sendmsg, int fd, void *msg, int flags) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sendmsg, fd, msg, flags);<br>
+ Release(cur_thread(), pc, fd2addr(fd));<br>
+ int res = REAL(sendmsg)(fd, msg, flags);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, recv, int fd, void *buf, long_t len, int flags) {<br>
+ SCOPED_TSAN_INTERCEPTOR(recv, fd, buf, len, flags);<br>
+ int res = REAL(recv)(fd, buf, len, flags);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(long_t, recvmsg, int fd, void *msg, int flags) {<br>
+ SCOPED_TSAN_INTERCEPTOR(recvmsg, fd, msg, flags);<br>
+ int res = REAL(recvmsg)(fd, msg, flags);<br>
+ if (res >= 0) {<br>
+ Acquire(cur_thread(), pc, fd2addr(fd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, unlink, char *path) {<br>
+ SCOPED_TSAN_INTERCEPTOR(unlink, path);<br>
+ Release(cur_thread(), pc, file2addr(path));<br>
+ int res = REAL(unlink)(path);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, fopen, char *path, char *mode) {<br>
+ SCOPED_TSAN_INTERCEPTOR(fopen, path, mode);<br>
+ void *res = REAL(fopen)(path, mode);<br>
+ Acquire(cur_thread(), pc, file2addr(path));<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(uptr, fread, void *ptr, uptr size, uptr nmemb, void *f) {<br>
+ SCOPED_TSAN_INTERCEPTOR(fread, ptr, size, nmemb, f);<br>
+ MemoryAccessRange(thr, pc, (uptr)ptr, size * nmemb, true);<br>
+ return REAL(fread)(ptr, size, nmemb, f);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(uptr, fwrite, const void *p, uptr size, uptr nmemb, void *f) {<br>
+ SCOPED_TSAN_INTERCEPTOR(fwrite, p, size, nmemb, f);<br>
+ MemoryAccessRange(thr, pc, (uptr)p, size * nmemb, false);<br>
+ return REAL(fwrite)(p, size, nmemb, f);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, puts, const char *s) {<br>
+ SCOPED_TSAN_INTERCEPTOR(puts, s);<br>
+ MemoryAccessRange(thr, pc, (uptr)s, REAL(strlen)(s), false);<br>
+ return REAL(puts)(s);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, rmdir, char *path) {<br>
+ SCOPED_TSAN_INTERCEPTOR(rmdir, path);<br>
+ Release(cur_thread(), pc, dir2addr(path));<br>
+ int res = REAL(rmdir)(path);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(void*, opendir, char *path) {<br>
+ SCOPED_TSAN_INTERCEPTOR(opendir, path);<br>
+ void *res = REAL(opendir)(path);<br>
+ Acquire(cur_thread(), pc, dir2addr(path));<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, epoll_ctl, int epfd, int op, int fd, void *ev) {<br>
+ SCOPED_TSAN_INTERCEPTOR(epoll_ctl, epfd, op, fd, ev);<br>
+ if (op == EPOLL_CTL_ADD) {<br>
+ Release(cur_thread(), pc, epollfd2addr(epfd));<br>
+ }<br>
+ int res = REAL(epoll_ctl)(epfd, op, fd, ev);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, epoll_wait, int epfd, void *ev, int cnt, int timeout) {<br>
+ SCOPED_TSAN_INTERCEPTOR(epoll_wait, epfd, ev, cnt, timeout);<br>
+ int res = REAL(epoll_wait)(epfd, ev, cnt, timeout);<br>
+ if (res > 0) {<br>
+ Acquire(cur_thread(), pc, epollfd2addr(epfd));<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+static void ALWAYS_INLINE rtl_generic_sighandler(bool sigact, int sig,<br>
+ my_siginfo_t *info, void *ctx) {<br>
+ ThreadState *thr = cur_thread();<br>
+ SignalContext *sctx = SigCtx(thr);<br>
+ // Don't mess with synchronous signals.<br>
+ if (sig == SIGSEGV || sig == SIGBUS || sig == SIGILL || sig == SIGABRT ||<br>
+ sig == SIGFPE || sig == SIGPIPE || sig == sctx->int_signal_send) {<br>
+ CHECK(thr->in_rtl == 0 || thr->in_rtl == 1);<br>
+ int in_rtl = thr->in_rtl;<br>
+ thr->in_rtl = 0;<br>
+ CHECK_EQ(thr->in_signal_handler, false);<br>
+ thr->in_signal_handler = true;<br>
+ if (sigact)<br>
+ sigactions[sig].sa_sigaction(sig, info, ctx);<br>
+ else<br>
+ sigactions[sig].sa_handler(sig);<br>
+ CHECK_EQ(thr->in_signal_handler, true);<br>
+ thr->in_signal_handler = false;<br>
+ thr->in_rtl = in_rtl;<br>
+ return;<br>
+ }<br>
+<br>
+ SignalDesc *signal = &sctx->pending_signals[sig];<br>
+ if (signal->armed == false) {<br>
+ signal->armed = true;<br>
+ signal->sigaction = sigact;<br>
+ if (info)<br>
+ signal->siginfo = *info;<br>
+ if (ctx)<br>
+ signal->ctx = *(ucontext_t*)ctx;<br>
+ sctx->pending_signal_count++;<br>
+ }<br>
+}<br>
+<br>
+static void rtl_sighandler(int sig) {<br>
+ rtl_generic_sighandler(false, sig, 0, 0);<br>
+}<br>
+<br>
+static void rtl_sigaction(int sig, my_siginfo_t *info, void *ctx) {<br>
+ rtl_generic_sighandler(true, sig, info, ctx);<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, sigaction, int sig, sigaction_t *act, sigaction_t *old) {<br>
+ SCOPED_TSAN_INTERCEPTOR(sigaction, sig, act, old);<br>
+ if (old)<br>
+ *old = sigactions[sig];<br>
+ if (act == 0)<br>
+ return 0;<br>
+ sigactions[sig] = *act;<br>
+ sigaction_t newact = *act;<br>
+ sigfillset(&newact.sa_mask);<br>
+ if (act->sa_handler != SIG_IGN && act->sa_handler != SIG_DFL) {<br>
+ if (newact.sa_flags & SA_SIGINFO)<br>
+ newact.sa_sigaction = rtl_sigaction;<br>
+ else<br>
+ newact.sa_handler = rtl_sighandler;<br>
+ }<br>
+ int res = REAL(sigaction)(sig, &newact, 0);<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(sighandler_t, signal, int sig, sighandler_t h) {<br>
+ sigaction_t act = {};<br>
+ act.sa_handler = h;<br>
+ REAL(memset)(&act.sa_mask, -1, sizeof(act.sa_mask));<br>
+ act.sa_flags = 0;<br>
+ sigaction_t old = {};<br>
+ int res = sigaction(sig, &act, &old);<br>
+ if (res)<br>
+ return SIG_ERR;<br>
+ return old.sa_handler;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, raise, int sig) {<br>
+ SCOPED_TSAN_INTERCEPTOR(raise, sig);<br>
+ SignalContext *sctx = SigCtx(thr);<br>
+ int prev = sctx->int_signal_send;<br>
+ sctx->int_signal_send = sig;<br>
+ int res = REAL(raise)(sig);<br>
+ CHECK_EQ(sctx->int_signal_send, sig);<br>
+ sctx->int_signal_send = prev;<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, kill, int pid, int sig) {<br>
+ SCOPED_TSAN_INTERCEPTOR(kill, pid, sig);<br>
+ SignalContext *sctx = SigCtx(thr);<br>
+ int prev = sctx->int_signal_send;<br>
+ if (pid == GetPid()) {<br>
+ sctx->int_signal_send = sig;<br>
+ }<br>
+ int res = REAL(kill)(pid, sig);<br>
+ if (pid == GetPid()) {<br>
+ CHECK_EQ(sctx->int_signal_send, sig);<br>
+ sctx->int_signal_send = prev;<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+TSAN_INTERCEPTOR(int, pthread_kill, void *tid, int sig) {<br>
+ SCOPED_TSAN_INTERCEPTOR(pthread_kill, tid, sig);<br>
+ SignalContext *sctx = SigCtx(thr);<br>
+ int prev = sctx->int_signal_send;<br>
+ if (tid == pthread_self()) {<br>
+ sctx->int_signal_send = sig;<br>
+ }<br>
+ int res = REAL(pthread_kill)(tid, sig);<br>
+ if (tid == pthread_self()) {<br>
+ CHECK_EQ(sctx->int_signal_send, sig);<br>
+ sctx->int_signal_send = prev;<br>
+ }<br>
+ return res;<br>
+}<br>
+<br>
+static void process_pending_signals(ThreadState *thr) {<br>
+ CHECK_EQ(thr->in_rtl, 0);<br>
+ SignalContext *sctx = SigCtx(thr);<br>
+ if (sctx->pending_signal_count == 0 || thr->in_signal_handler)<br>
+ return;<br>
+ thr->in_signal_handler = true;<br>
+ sctx->pending_signal_count = 0;<br>
+ // These are too big for stack.<br>
+ static THREADLOCAL sigset_t emptyset, oldset;<br>
+ sigfillset(&emptyset);<br>
+ pthread_sigmask(SIG_SETMASK, &emptyset, &oldset);<br>
+ for (int sig = 0; sig < kSigCount; sig++) {<br>
+ SignalDesc *signal = &sctx->pending_signals[sig];<br>
+ if (signal->armed) {<br>
+ signal->armed = false;<br>
+ if (sigactions[sig].sa_handler != SIG_DFL<br>
+ && sigactions[sig].sa_handler != SIG_IGN) {<br>
+ // Insure that the handler does not spoil errno.<br>
+ const int saved_errno = errno;<br>
+ errno = 0;<br>
+ if (signal->sigaction)<br>
+ sigactions[sig].sa_sigaction(sig, &signal->siginfo, &signal->ctx);<br>
+ else<br>
+ sigactions[sig].sa_handler(sig);<br>
+ if (errno != 0) {<br>
+ ScopedInRtl in_rtl;<br>
+ StackTrace stack;<br>
+ uptr pc = signal->sigaction ?<br>
+ (uptr)sigactions[sig].sa_sigaction :<br>
+ (uptr)sigactions[sig].sa_handler;<br>
+ stack.Init(&pc, 1);<br>
+ ScopedReport rep(ReportTypeErrnoInSignal);<br>
+ rep.AddStack(&stack);<br>
+ OutputReport(rep, rep.GetReport()->stacks[0]);<br>
+ }<br>
+ errno = saved_errno;<br>
+ }<br>
+ }<br>
+ }<br>
+ pthread_sigmask(SIG_SETMASK, &oldset, 0);<br>
+ CHECK_EQ(thr->in_signal_handler, true);<br>
+ thr->in_signal_handler = false;<br>
+}<br>
+<br>
+namespace __tsan {<br>
+<br>
+// Used until we obtain real efficient functions.<br>
+static void* poormans_memset(void *dst, int v, uptr size) {<br>
+ for (uptr i = 0; i < size; i++)<br>
+ ((char*)dst)[i] = (char)v;<br>
+ return dst;<br>
+}<br>
+<br>
+static void* poormans_memcpy(void *dst, const void *src, uptr size) {<br>
+ for (uptr i = 0; i < size; i++)<br>
+ ((char*)dst)[i] = ((char*)src)[i];<br>
+ return dst;<br>
+}<br>
+<br>
+void InitializeInterceptors() {<br>
+ CHECK_GT(cur_thread()->in_rtl, 0);<br>
+<br>
+ // We need to setup it early, because functions like dlsym() can call it.<br>
+ REAL(memset) = poormans_memset;<br>
+ REAL(memcpy) = poormans_memcpy;<br>
+<br>
+ TSAN_INTERCEPT(longjmp);<br>
+ TSAN_INTERCEPT(siglongjmp);<br>
+<br>
+ TSAN_INTERCEPT(malloc);<br>
+ TSAN_INTERCEPT(calloc);<br>
+ TSAN_INTERCEPT(realloc);<br>
+ TSAN_INTERCEPT(free);<br>
+ TSAN_INTERCEPT(cfree);<br>
+ TSAN_INTERCEPT(mmap);<br>
+ TSAN_INTERCEPT(mmap64);<br>
+ TSAN_INTERCEPT(munmap);<br>
+ TSAN_INTERCEPT(memalign);<br>
+ TSAN_INTERCEPT(valloc);<br>
+ TSAN_INTERCEPT(pvalloc);<br>
+ TSAN_INTERCEPT(posix_memalign);<br>
+<br>
+ TSAN_INTERCEPT(_Znwm);<br>
+ TSAN_INTERCEPT(_ZnwmRKSt9nothrow_t);<br>
+ TSAN_INTERCEPT(_Znam);<br>
+ TSAN_INTERCEPT(_ZnamRKSt9nothrow_t);<br>
+ TSAN_INTERCEPT(_ZdlPv);<br>
+ TSAN_INTERCEPT(_ZdlPvRKSt9nothrow_t);<br>
+ TSAN_INTERCEPT(_ZdaPv);<br>
+ TSAN_INTERCEPT(_ZdaPvRKSt9nothrow_t);<br>
+<br>
+ TSAN_INTERCEPT(strlen);<br>
+ TSAN_INTERCEPT(memset);<br>
+ TSAN_INTERCEPT(memcpy);<br>
+ TSAN_INTERCEPT(strcmp);<br>
+ TSAN_INTERCEPT(memchr);<br>
+ TSAN_INTERCEPT(memrchr);<br>
+ TSAN_INTERCEPT(memmove);<br>
+ TSAN_INTERCEPT(memcmp);<br>
+ TSAN_INTERCEPT(strchr);<br>
+ TSAN_INTERCEPT(strchrnul);<br>
+ TSAN_INTERCEPT(strrchr);<br>
+ TSAN_INTERCEPT(strncmp);<br>
+ TSAN_INTERCEPT(strcpy); // NOLINT<br>
+ TSAN_INTERCEPT(strncpy);<br>
+ TSAN_INTERCEPT(strstr);<br>
+<br>
+ TSAN_INTERCEPT(__cxa_guard_acquire);<br>
+ TSAN_INTERCEPT(__cxa_guard_release);<br>
+<br>
+ TSAN_INTERCEPT(pthread_create);<br>
+ TSAN_INTERCEPT(pthread_join);<br>
+ TSAN_INTERCEPT(pthread_detach);<br>
+<br>
+ TSAN_INTERCEPT(pthread_mutex_init);<br>
+ TSAN_INTERCEPT(pthread_mutex_destroy);<br>
+ TSAN_INTERCEPT(pthread_mutex_lock);<br>
+ TSAN_INTERCEPT(pthread_mutex_trylock);<br>
+ TSAN_INTERCEPT(pthread_mutex_timedlock);<br>
+ TSAN_INTERCEPT(pthread_mutex_unlock);<br>
+<br>
+ TSAN_INTERCEPT(pthread_spin_init);<br>
+ TSAN_INTERCEPT(pthread_spin_destroy);<br>
+ TSAN_INTERCEPT(pthread_spin_lock);<br>
+ TSAN_INTERCEPT(pthread_spin_trylock);<br>
+ TSAN_INTERCEPT(pthread_spin_unlock);<br>
+<br>
+ TSAN_INTERCEPT(pthread_rwlock_init);<br>
+ TSAN_INTERCEPT(pthread_rwlock_destroy);<br>
+ TSAN_INTERCEPT(pthread_rwlock_rdlock);<br>
+ TSAN_INTERCEPT(pthread_rwlock_tryrdlock);<br>
+ TSAN_INTERCEPT(pthread_rwlock_timedrdlock);<br>
+ TSAN_INTERCEPT(pthread_rwlock_wrlock);<br>
+ TSAN_INTERCEPT(pthread_rwlock_trywrlock);<br>
+ TSAN_INTERCEPT(pthread_rwlock_timedwrlock);<br>
+ TSAN_INTERCEPT(pthread_rwlock_unlock);<br>
+<br>
+ TSAN_INTERCEPT(pthread_cond_init);<br>
+ TSAN_INTERCEPT(pthread_cond_destroy);<br>
+ TSAN_INTERCEPT(pthread_cond_signal);<br>
+ TSAN_INTERCEPT(pthread_cond_broadcast);<br>
+ TSAN_INTERCEPT(pthread_cond_wait);<br>
+ TSAN_INTERCEPT(pthread_cond_timedwait);<br>
+<br>
+ TSAN_INTERCEPT(pthread_barrier_init);<br>
+ TSAN_INTERCEPT(pthread_barrier_destroy);<br>
+ TSAN_INTERCEPT(pthread_barrier_wait);<br>
+<br>
+ TSAN_INTERCEPT(pthread_once);<br>
+<br>
+ TSAN_INTERCEPT(sem_init);<br>
+ TSAN_INTERCEPT(sem_destroy);<br>
+ TSAN_INTERCEPT(sem_wait);<br>
+ TSAN_INTERCEPT(sem_trywait);<br>
+ TSAN_INTERCEPT(sem_timedwait);<br>
+ TSAN_INTERCEPT(sem_post);<br>
+ TSAN_INTERCEPT(sem_getvalue);<br>
+<br>
+ TSAN_INTERCEPT(read);<br>
+ TSAN_INTERCEPT(pread);<br>
+ TSAN_INTERCEPT(pread64);<br>
+ TSAN_INTERCEPT(readv);<br>
+ TSAN_INTERCEPT(preadv64);<br>
+ TSAN_INTERCEPT(write);<br>
+ TSAN_INTERCEPT(pwrite);<br>
+ TSAN_INTERCEPT(pwrite64);<br>
+ TSAN_INTERCEPT(writev);<br>
+ TSAN_INTERCEPT(pwritev64);<br>
+ TSAN_INTERCEPT(send);<br>
+ TSAN_INTERCEPT(sendmsg);<br>
+ TSAN_INTERCEPT(recv);<br>
+ TSAN_INTERCEPT(recvmsg);<br>
+<br>
+ TSAN_INTERCEPT(unlink);<br>
+ TSAN_INTERCEPT(fopen);<br>
+ TSAN_INTERCEPT(fread);<br>
+ TSAN_INTERCEPT(fwrite);<br>
+ TSAN_INTERCEPT(puts);<br>
+ TSAN_INTERCEPT(rmdir);<br>
+ TSAN_INTERCEPT(opendir);<br>
+<br>
+ TSAN_INTERCEPT(epoll_ctl);<br>
+ TSAN_INTERCEPT(epoll_wait);<br>
+<br>
+ TSAN_INTERCEPT(sigaction);<br>
+ TSAN_INTERCEPT(signal);<br>
+ TSAN_INTERCEPT(raise);<br>
+ TSAN_INTERCEPT(kill);<br>
+ TSAN_INTERCEPT(pthread_kill);<br>
+<br>
+ atexit_ctx = new(internal_alloc(MBlockAtExit, sizeof(AtExitContext)))<br>
+ AtExitContext();<br>
+<br>
+ if (__cxa_atexit(&finalize, 0, 0)) {<br>
+ TsanPrintf("ThreadSanitizer: failed to setup atexit callback\n");<br>
+ Die();<br>
+ }<br>
+<br>
+ if (pthread_key_create(&g_thread_finalize_key, &thread_finalize)) {<br>
+ TsanPrintf("ThreadSanitizer: failed to create thread key\n");<br>
+ Die();<br>
+ }<br>
+}<br>
+<br>
+void internal_start_thread(void(*func)(void *arg), void *arg) {<br>
+ void *th;<br>
+ REAL(pthread_create)(&th, 0, (void*(*)(void *arg))func, arg);<br>
+ REAL(pthread_detach)(th);<br>
+}<br>
+<br>
+} // namespace __tsan<br>
<br>
<br>
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</blockquote></div></div></div><br></div>
</blockquote></div><br></div>