Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 1 | //===-- tsan_interceptors.cc ----------------------------------------------===// |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file is a part of ThreadSanitizer (TSan), a race detector. |
| 11 | // |
Kostya Serebryany | 8530e2b | 2012-12-12 09:54:35 +0000 | [diff] [blame] | 12 | // FIXME: move as many interceptors as possible into |
Dmitry Vyukov | edd2821 | 2013-04-24 11:06:05 +0000 | [diff] [blame] | 13 | // sanitizer_common/sanitizer_common_interceptors.inc |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 14 | //===----------------------------------------------------------------------===// |
| 15 | |
Dmitry Vyukov | fce5bd4 | 2012-06-29 16:58:33 +0000 | [diff] [blame] | 16 | #include "sanitizer_common/sanitizer_atomic.h" |
Alexey Samsonov | 230c3be | 2012-06-06 09:26:25 +0000 | [diff] [blame] | 17 | #include "sanitizer_common/sanitizer_libc.h" |
Evgeniy Stepanov | b9bf700 | 2013-03-19 09:30:52 +0000 | [diff] [blame] | 18 | #include "sanitizer_common/sanitizer_linux.h" |
Alexey Samsonov | 47a0f6e | 2013-03-14 07:13:00 +0000 | [diff] [blame] | 19 | #include "sanitizer_common/sanitizer_platform_limits_posix.h" |
Alexey Samsonov | 47b1634 | 2012-06-07 09:50:16 +0000 | [diff] [blame] | 20 | #include "sanitizer_common/sanitizer_placement_new.h" |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 21 | #include "sanitizer_common/sanitizer_stacktrace.h" |
Dmitry Vyukov | 36decbf | 2012-12-05 10:16:17 +0000 | [diff] [blame] | 22 | #include "interception/interception.h" |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 23 | #include "tsan_interface.h" |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 24 | #include "tsan_platform.h" |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 25 | #include "tsan_suppressions.h" |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 26 | #include "tsan_rtl.h" |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 27 | #include "tsan_mman.h" |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 28 | #include "tsan_fd.h" |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 29 | |
| 30 | using namespace __tsan; // NOLINT |
| 31 | |
Dmitry Vyukov | 236a098 | 2013-03-20 14:57:28 +0000 | [diff] [blame] | 32 | const int kSigCount = 64; |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 33 | |
| 34 | struct my_siginfo_t { |
Dmitry Vyukov | 4219ea3 | 2013-03-21 06:28:04 +0000 | [diff] [blame] | 35 | // The size is determined by looking at sizeof of real siginfo_t on linux. |
Dmitry Vyukov | 236a098 | 2013-03-20 14:57:28 +0000 | [diff] [blame] | 36 | u64 opaque[128 / sizeof(u64)]; |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 37 | }; |
| 38 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 39 | struct ucontext_t { |
Dmitry Vyukov | 4219ea3 | 2013-03-21 06:28:04 +0000 | [diff] [blame] | 40 | // The size is determined by looking at sizeof of real ucontext_t on linux. |
Dmitry Vyukov | 236a098 | 2013-03-20 14:57:28 +0000 | [diff] [blame] | 41 | u64 opaque[936 / sizeof(u64) + 1]; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 42 | }; |
| 43 | |
| 44 | extern "C" int pthread_attr_init(void *attr); |
| 45 | extern "C" int pthread_attr_destroy(void *attr); |
Evgeniy Stepanov | e236dbb | 2013-10-25 13:01:31 +0000 | [diff] [blame] | 46 | DECLARE_REAL(int, pthread_attr_getdetachstate, void *, void *) |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 47 | extern "C" int pthread_attr_setstacksize(void *attr, uptr stacksize); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 48 | extern "C" int pthread_key_create(unsigned *key, void (*destructor)(void* v)); |
| 49 | extern "C" int pthread_setspecific(unsigned key, const void *v); |
| 50 | extern "C" int pthread_mutexattr_gettype(void *a, int *type); |
| 51 | extern "C" int pthread_yield(); |
Evgeniy Stepanov | 9a949a8 | 2013-09-25 14:47:43 +0000 | [diff] [blame] | 52 | extern "C" int pthread_sigmask(int how, const __sanitizer_sigset_t *set, |
| 53 | __sanitizer_sigset_t *oldset); |
| 54 | // REAL(sigfillset) defined in common interceptors. |
| 55 | DECLARE_REAL(int, sigfillset, __sanitizer_sigset_t *set) |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 56 | extern "C" void *pthread_self(); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 57 | extern "C" void _exit(int status); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 58 | extern "C" int *__errno_location(); |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 59 | extern "C" int fileno_unlocked(void *stream); |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 60 | extern "C" void *__libc_malloc(uptr size); |
| 61 | extern "C" void *__libc_calloc(uptr size, uptr n); |
| 62 | extern "C" void *__libc_realloc(void *ptr, uptr size); |
| 63 | extern "C" void __libc_free(void *ptr); |
Dmitry Vyukov | 8e1c769 | 2013-03-19 12:24:19 +0000 | [diff] [blame] | 64 | extern "C" int mallopt(int param, int value); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 65 | const int PTHREAD_MUTEX_RECURSIVE = 1; |
| 66 | const int PTHREAD_MUTEX_RECURSIVE_NP = 1; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 67 | const int EINVAL = 22; |
| 68 | const int EBUSY = 16; |
| 69 | const int EPOLL_CTL_ADD = 1; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 70 | const int SIGILL = 4; |
| 71 | const int SIGABRT = 6; |
| 72 | const int SIGFPE = 8; |
| 73 | const int SIGSEGV = 11; |
| 74 | const int SIGPIPE = 13; |
| 75 | const int SIGBUS = 7; |
Dmitry Vyukov | 158ca52 | 2013-07-18 13:14:11 +0000 | [diff] [blame] | 76 | const int SIGSYS = 31; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 77 | void *const MAP_FAILED = (void*)-1; |
| 78 | const int PTHREAD_BARRIER_SERIAL_THREAD = -1; |
| 79 | const int MAP_FIXED = 0x10; |
| 80 | typedef long long_t; // NOLINT |
| 81 | |
Alexander Potapenko | 0ce948e | 2012-09-11 09:26:35 +0000 | [diff] [blame] | 82 | // From /usr/include/unistd.h |
| 83 | # define F_ULOCK 0 /* Unlock a previously locked region. */ |
| 84 | # define F_LOCK 1 /* Lock a region for exclusive use. */ |
| 85 | # define F_TLOCK 2 /* Test and lock a region for exclusive use. */ |
| 86 | # define F_TEST 3 /* Test a region for other processes locks. */ |
| 87 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 88 | typedef void (*sighandler_t)(int sig); |
| 89 | |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 90 | #define errno (*__errno_location()) |
| 91 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 92 | struct sigaction_t { |
| 93 | union { |
| 94 | sighandler_t sa_handler; |
| 95 | void (*sa_sigaction)(int sig, my_siginfo_t *siginfo, void *uctx); |
| 96 | }; |
Evgeniy Stepanov | 9a949a8 | 2013-09-25 14:47:43 +0000 | [diff] [blame] | 97 | __sanitizer_sigset_t sa_mask; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 98 | int sa_flags; |
| 99 | void (*sa_restorer)(); |
| 100 | }; |
| 101 | |
| 102 | const sighandler_t SIG_DFL = (sighandler_t)0; |
| 103 | const sighandler_t SIG_IGN = (sighandler_t)1; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 104 | const sighandler_t SIG_ERR = (sighandler_t)-1; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 105 | const int SA_SIGINFO = 4; |
| 106 | const int SIG_SETMASK = 2; |
| 107 | |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 108 | namespace std { |
| 109 | struct nothrow_t {}; |
| 110 | } // namespace std |
| 111 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 112 | static sigaction_t sigactions[kSigCount]; |
| 113 | |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 114 | namespace __tsan { |
| 115 | struct SignalDesc { |
| 116 | bool armed; |
| 117 | bool sigaction; |
| 118 | my_siginfo_t siginfo; |
| 119 | ucontext_t ctx; |
| 120 | }; |
| 121 | |
| 122 | struct SignalContext { |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 123 | int in_blocking_func; |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 124 | int int_signal_send; |
| 125 | int pending_signal_count; |
| 126 | SignalDesc pending_signals[kSigCount]; |
| 127 | }; |
Dmitry Vyukov | d188653 | 2013-09-21 23:06:00 +0000 | [diff] [blame] | 128 | |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 129 | // The object is 64-byte aligned, because we want hot data to be located in |
| 130 | // a single cache line if possible (it's accessed in every interceptor). |
| 131 | static ALIGNED(64) char libignore_placeholder[sizeof(LibIgnore)]; |
| 132 | static LibIgnore *libignore() { |
| 133 | return reinterpret_cast<LibIgnore*>(&libignore_placeholder[0]); |
| 134 | } |
Dmitry Vyukov | d188653 | 2013-09-21 23:06:00 +0000 | [diff] [blame] | 135 | |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 136 | void InitializeLibIgnore() { |
| 137 | libignore()->Init(*GetSuppressionContext()); |
Dmitry Vyukov | 3dbbd85 | 2013-10-15 11:34:59 +0000 | [diff] [blame] | 138 | libignore()->OnLibraryLoaded(0); |
Dmitry Vyukov | d188653 | 2013-09-21 23:06:00 +0000 | [diff] [blame] | 139 | } |
| 140 | |
Alexey Samsonov | ba5e996 | 2013-01-30 07:45:58 +0000 | [diff] [blame] | 141 | } // namespace __tsan |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 142 | |
| 143 | static SignalContext *SigCtx(ThreadState *thr) { |
| 144 | SignalContext *ctx = (SignalContext*)thr->signal_ctx; |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 145 | if (ctx == 0 && thr->is_alive) { |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 146 | ScopedInRtl in_rtl; |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 147 | ctx = (SignalContext*)MmapOrDie(sizeof(*ctx), "SignalContext"); |
| 148 | MemoryResetRange(thr, (uptr)&SigCtx, (uptr)ctx, sizeof(*ctx)); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 149 | thr->signal_ctx = ctx; |
| 150 | } |
| 151 | return ctx; |
| 152 | } |
| 153 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 154 | static unsigned g_thread_finalize_key; |
| 155 | |
Dmitry Vyukov | 36decbf | 2012-12-05 10:16:17 +0000 | [diff] [blame] | 156 | class ScopedInterceptor { |
| 157 | public: |
| 158 | ScopedInterceptor(ThreadState *thr, const char *fname, uptr pc); |
| 159 | ~ScopedInterceptor(); |
| 160 | private: |
| 161 | ThreadState *const thr_; |
| 162 | const int in_rtl_; |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 163 | bool in_ignored_lib_; |
Dmitry Vyukov | 36decbf | 2012-12-05 10:16:17 +0000 | [diff] [blame] | 164 | }; |
| 165 | |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 166 | ScopedInterceptor::ScopedInterceptor(ThreadState *thr, const char *fname, |
| 167 | uptr pc) |
| 168 | : thr_(thr) |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 169 | , in_rtl_(thr->in_rtl) |
| 170 | , in_ignored_lib_(false) { |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 171 | if (thr_->in_rtl == 0) { |
| 172 | Initialize(thr); |
| 173 | FuncEntry(thr, pc); |
| 174 | thr_->in_rtl++; |
| 175 | DPrintf("#%d: intercept %s()\n", thr_->tid, fname); |
| 176 | } else { |
| 177 | thr_->in_rtl++; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 178 | } |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 179 | if (!thr_->in_ignored_lib && libignore()->IsIgnored(pc)) { |
| 180 | in_ignored_lib_ = true; |
| 181 | thr_->in_ignored_lib = true; |
| 182 | ThreadIgnoreBegin(thr_); |
| 183 | } |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 184 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 185 | |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 186 | ScopedInterceptor::~ScopedInterceptor() { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 187 | if (in_ignored_lib_) { |
| 188 | thr_->in_ignored_lib = false; |
| 189 | ThreadIgnoreEnd(thr_); |
| 190 | } |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 191 | thr_->in_rtl--; |
| 192 | if (thr_->in_rtl == 0) { |
| 193 | FuncExit(thr_); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 194 | ProcessPendingSignals(thr_); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 195 | } |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 196 | CHECK_EQ(in_rtl_, thr_->in_rtl); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 197 | } |
| 198 | |
Dmitry Vyukov | 36decbf | 2012-12-05 10:16:17 +0000 | [diff] [blame] | 199 | #define SCOPED_INTERCEPTOR_RAW(func, ...) \ |
| 200 | ThreadState *thr = cur_thread(); \ |
| 201 | StatInc(thr, StatInterceptor); \ |
| 202 | StatInc(thr, StatInt_##func); \ |
| 203 | const uptr caller_pc = GET_CALLER_PC(); \ |
| 204 | ScopedInterceptor si(thr, #func, caller_pc); \ |
Dmitry Vyukov | e7718bc | 2013-06-17 19:57:03 +0000 | [diff] [blame] | 205 | const uptr pc = __sanitizer::StackTrace::GetCurrentPc(); \ |
Dmitry Vyukov | 36decbf | 2012-12-05 10:16:17 +0000 | [diff] [blame] | 206 | (void)pc; \ |
| 207 | /**/ |
| 208 | |
| 209 | #define SCOPED_TSAN_INTERCEPTOR(func, ...) \ |
| 210 | SCOPED_INTERCEPTOR_RAW(func, __VA_ARGS__); \ |
| 211 | if (REAL(func) == 0) { \ |
| 212 | Printf("FATAL: ThreadSanitizer: failed to intercept %s\n", #func); \ |
| 213 | Die(); \ |
| 214 | } \ |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 215 | if (thr->in_rtl > 1 || thr->in_ignored_lib) \ |
Dmitry Vyukov | 36decbf | 2012-12-05 10:16:17 +0000 | [diff] [blame] | 216 | return REAL(func)(__VA_ARGS__); \ |
| 217 | /**/ |
| 218 | |
| 219 | #define TSAN_INTERCEPTOR(ret, func, ...) INTERCEPTOR(ret, func, __VA_ARGS__) |
| 220 | #define TSAN_INTERCEPT(func) INTERCEPT_FUNCTION(func) |
| 221 | |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 222 | #define BLOCK_REAL(name) (BlockingCall(thr), REAL(name)) |
| 223 | |
| 224 | struct BlockingCall { |
Alexey Samsonov | b717f4d | 2012-11-16 11:21:07 +0000 | [diff] [blame] | 225 | explicit BlockingCall(ThreadState *thr) |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 226 | : ctx(SigCtx(thr)) { |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 227 | ctx->in_blocking_func++; |
| 228 | } |
| 229 | |
| 230 | ~BlockingCall() { |
| 231 | ctx->in_blocking_func--; |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | SignalContext *ctx; |
| 235 | }; |
| 236 | |
Dmitry Vyukov | 8485311 | 2012-08-31 17:27:49 +0000 | [diff] [blame] | 237 | TSAN_INTERCEPTOR(unsigned, sleep, unsigned sec) { |
| 238 | SCOPED_TSAN_INTERCEPTOR(sleep, sec); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 239 | unsigned res = BLOCK_REAL(sleep)(sec); |
Dmitry Vyukov | 8485311 | 2012-08-31 17:27:49 +0000 | [diff] [blame] | 240 | AfterSleep(thr, pc); |
| 241 | return res; |
| 242 | } |
| 243 | |
| 244 | TSAN_INTERCEPTOR(int, usleep, long_t usec) { |
| 245 | SCOPED_TSAN_INTERCEPTOR(usleep, usec); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 246 | int res = BLOCK_REAL(usleep)(usec); |
Dmitry Vyukov | 8485311 | 2012-08-31 17:27:49 +0000 | [diff] [blame] | 247 | AfterSleep(thr, pc); |
| 248 | return res; |
| 249 | } |
| 250 | |
| 251 | TSAN_INTERCEPTOR(int, nanosleep, void *req, void *rem) { |
| 252 | SCOPED_TSAN_INTERCEPTOR(nanosleep, req, rem); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 253 | int res = BLOCK_REAL(nanosleep)(req, rem); |
Dmitry Vyukov | 8485311 | 2012-08-31 17:27:49 +0000 | [diff] [blame] | 254 | AfterSleep(thr, pc); |
| 255 | return res; |
| 256 | } |
| 257 | |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 258 | TSAN_INTERCEPTOR(void*, dlopen, const char *filename, int flag) { |
| 259 | SCOPED_INTERCEPTOR_RAW(dlopen, filename, flag); |
| 260 | // dlopen will execute global constructors, so it must be not in rtl. |
| 261 | CHECK_EQ(thr->in_rtl, 1); |
| 262 | thr->in_rtl = 0; |
| 263 | void *res = REAL(dlopen)(filename, flag); |
| 264 | thr->in_rtl = 1; |
Dmitry Vyukov | 3dbbd85 | 2013-10-15 11:34:59 +0000 | [diff] [blame] | 265 | libignore()->OnLibraryLoaded(filename); |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 266 | return res; |
| 267 | } |
| 268 | |
| 269 | TSAN_INTERCEPTOR(int, dlclose, void *handle) { |
| 270 | SCOPED_INTERCEPTOR_RAW(dlclose, handle); |
| 271 | // dlclose will execute global destructors, so it must be not in rtl. |
| 272 | CHECK_EQ(thr->in_rtl, 1); |
| 273 | thr->in_rtl = 0; |
| 274 | int res = REAL(dlclose)(handle); |
| 275 | thr->in_rtl = 1; |
| 276 | libignore()->OnLibraryUnloaded(); |
| 277 | return res; |
| 278 | } |
| 279 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 280 | class AtExitContext { |
| 281 | public: |
| 282 | AtExitContext() |
| 283 | : mtx_(MutexTypeAtExit, StatMtxAtExit) |
| 284 | , pos_() { |
| 285 | } |
| 286 | |
| 287 | typedef void(*atexit_t)(); |
| 288 | |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 289 | int atexit(ThreadState *thr, uptr pc, bool is_on_exit, |
| 290 | atexit_t f, void *arg) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 291 | Lock l(&mtx_); |
| 292 | if (pos_ == kMaxAtExit) |
| 293 | return 1; |
| 294 | Release(thr, pc, (uptr)this); |
| 295 | stack_[pos_] = f; |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 296 | args_[pos_] = arg; |
| 297 | is_on_exits_[pos_] = is_on_exit; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 298 | pos_++; |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | void exit(ThreadState *thr, uptr pc) { |
| 303 | CHECK_EQ(thr->in_rtl, 0); |
| 304 | for (;;) { |
| 305 | atexit_t f = 0; |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 306 | void *arg = 0; |
| 307 | bool is_on_exit = false; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 308 | { |
| 309 | Lock l(&mtx_); |
| 310 | if (pos_) { |
| 311 | pos_--; |
| 312 | f = stack_[pos_]; |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 313 | arg = args_[pos_]; |
| 314 | is_on_exit = is_on_exits_[pos_]; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 315 | ScopedInRtl in_rtl; |
| 316 | Acquire(thr, pc, (uptr)this); |
| 317 | } |
| 318 | } |
| 319 | if (f == 0) |
| 320 | break; |
| 321 | DPrintf("#%d: executing atexit func %p\n", thr->tid, f); |
| 322 | CHECK_EQ(thr->in_rtl, 0); |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 323 | if (is_on_exit) |
| 324 | ((void(*)(int status, void *arg))f)(0, arg); |
| 325 | else |
| 326 | ((void(*)(void *arg, void *dso))f)(arg, 0); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 327 | } |
| 328 | } |
| 329 | |
| 330 | private: |
| 331 | static const int kMaxAtExit = 128; |
| 332 | Mutex mtx_; |
| 333 | atexit_t stack_[kMaxAtExit]; |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 334 | void *args_[kMaxAtExit]; |
| 335 | bool is_on_exits_[kMaxAtExit]; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 336 | int pos_; |
| 337 | }; |
| 338 | |
| 339 | static AtExitContext *atexit_ctx; |
| 340 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 341 | TSAN_INTERCEPTOR(int, atexit, void (*f)()) { |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 342 | if (cur_thread()->in_symbolizer) |
| 343 | return 0; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 344 | SCOPED_TSAN_INTERCEPTOR(atexit, f); |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 345 | return atexit_ctx->atexit(thr, pc, false, (void(*)())f, 0); |
| 346 | } |
| 347 | |
| 348 | TSAN_INTERCEPTOR(int, on_exit, void(*f)(int, void*), void *arg) { |
| 349 | if (cur_thread()->in_symbolizer) |
| 350 | return 0; |
| 351 | SCOPED_TSAN_INTERCEPTOR(on_exit, f, arg); |
| 352 | return atexit_ctx->atexit(thr, pc, true, (void(*)())f, arg); |
| 353 | } |
| 354 | |
| 355 | TSAN_INTERCEPTOR(int, __cxa_atexit, void (*f)(void *a), void *arg, void *dso) { |
| 356 | if (cur_thread()->in_symbolizer) |
| 357 | return 0; |
| 358 | SCOPED_TSAN_INTERCEPTOR(__cxa_atexit, f, arg, dso); |
Dmitry Vyukov | 9d4956e | 2013-09-19 04:48:59 +0000 | [diff] [blame] | 359 | if (dso) { |
| 360 | // Memory allocation in __cxa_atexit will race with free during exit, |
| 361 | // because we do not see synchronization around atexit callback list. |
| 362 | ThreadIgnoreBegin(thr); |
| 363 | int res = REAL(__cxa_atexit)(f, arg, dso); |
| 364 | ThreadIgnoreEnd(thr); |
| 365 | return res; |
| 366 | } |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 367 | return atexit_ctx->atexit(thr, pc, false, (void(*)())f, arg); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 368 | } |
| 369 | |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 370 | // Cleanup old bufs. |
| 371 | static void JmpBufGarbageCollect(ThreadState *thr, uptr sp) { |
| 372 | for (uptr i = 0; i < thr->jmp_bufs.Size(); i++) { |
| 373 | JmpBuf *buf = &thr->jmp_bufs[i]; |
| 374 | if (buf->sp <= sp) { |
| 375 | uptr sz = thr->jmp_bufs.Size(); |
| 376 | thr->jmp_bufs[i] = thr->jmp_bufs[sz - 1]; |
| 377 | thr->jmp_bufs.PopBack(); |
| 378 | i--; |
| 379 | } |
| 380 | } |
Dmitry Vyukov | f037f56 | 2012-05-31 18:03:59 +0000 | [diff] [blame] | 381 | } |
| 382 | |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 383 | static void SetJmp(ThreadState *thr, uptr sp, uptr mangled_sp) { |
| 384 | if (thr->shadow_stack_pos == 0) // called from libc guts during bootstrap |
| 385 | return; |
| 386 | // Cleanup old bufs. |
| 387 | JmpBufGarbageCollect(thr, sp); |
| 388 | // Remember the buf. |
| 389 | JmpBuf *buf = thr->jmp_bufs.PushBack(); |
| 390 | buf->sp = sp; |
| 391 | buf->mangled_sp = mangled_sp; |
| 392 | buf->shadow_stack_pos = thr->shadow_stack_pos; |
| 393 | } |
| 394 | |
| 395 | static void LongJmp(ThreadState *thr, uptr *env) { |
| 396 | uptr mangled_sp = env[6]; |
| 397 | // Find the saved buf by mangled_sp. |
| 398 | for (uptr i = 0; i < thr->jmp_bufs.Size(); i++) { |
| 399 | JmpBuf *buf = &thr->jmp_bufs[i]; |
| 400 | if (buf->mangled_sp == mangled_sp) { |
| 401 | CHECK_GE(thr->shadow_stack_pos, buf->shadow_stack_pos); |
| 402 | // Unwind the stack. |
| 403 | while (thr->shadow_stack_pos > buf->shadow_stack_pos) |
| 404 | FuncExit(thr); |
| 405 | JmpBufGarbageCollect(thr, buf->sp - 1); // do not collect buf->sp |
| 406 | return; |
| 407 | } |
| 408 | } |
| 409 | Printf("ThreadSanitizer: can't find longjmp buf\n"); |
| 410 | CHECK(0); |
| 411 | } |
| 412 | |
Timur Iskhodzhanov | f109267 | 2013-08-13 12:03:51 +0000 | [diff] [blame] | 413 | // FIXME: put everything below into a common extern "C" block? |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 414 | extern "C" void __tsan_setjmp(uptr sp, uptr mangled_sp) { |
| 415 | ScopedInRtl in_rtl; |
| 416 | SetJmp(cur_thread(), sp, mangled_sp); |
| 417 | } |
| 418 | |
| 419 | // Not called. Merely to satisfy TSAN_INTERCEPT(). |
Timur Iskhodzhanov | f109267 | 2013-08-13 12:03:51 +0000 | [diff] [blame] | 420 | extern "C" SANITIZER_INTERFACE_ATTRIBUTE |
| 421 | int __interceptor_setjmp(void *env); |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 422 | extern "C" int __interceptor_setjmp(void *env) { |
| 423 | CHECK(0); |
| 424 | return 0; |
| 425 | } |
| 426 | |
Timur Iskhodzhanov | f109267 | 2013-08-13 12:03:51 +0000 | [diff] [blame] | 427 | // FIXME: any reason to have a separate declaration? |
| 428 | extern "C" SANITIZER_INTERFACE_ATTRIBUTE |
| 429 | int __interceptor__setjmp(void *env); |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 430 | extern "C" int __interceptor__setjmp(void *env) { |
| 431 | CHECK(0); |
| 432 | return 0; |
| 433 | } |
| 434 | |
Timur Iskhodzhanov | f109267 | 2013-08-13 12:03:51 +0000 | [diff] [blame] | 435 | extern "C" SANITIZER_INTERFACE_ATTRIBUTE |
| 436 | int __interceptor_sigsetjmp(void *env); |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 437 | extern "C" int __interceptor_sigsetjmp(void *env) { |
| 438 | CHECK(0); |
| 439 | return 0; |
| 440 | } |
| 441 | |
Timur Iskhodzhanov | f109267 | 2013-08-13 12:03:51 +0000 | [diff] [blame] | 442 | extern "C" SANITIZER_INTERFACE_ATTRIBUTE |
| 443 | int __interceptor___sigsetjmp(void *env); |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 444 | extern "C" int __interceptor___sigsetjmp(void *env) { |
| 445 | CHECK(0); |
| 446 | return 0; |
| 447 | } |
| 448 | |
| 449 | extern "C" int setjmp(void *env); |
| 450 | extern "C" int _setjmp(void *env); |
| 451 | extern "C" int sigsetjmp(void *env); |
| 452 | extern "C" int __sigsetjmp(void *env); |
| 453 | DEFINE_REAL(int, setjmp, void *env) |
| 454 | DEFINE_REAL(int, _setjmp, void *env) |
| 455 | DEFINE_REAL(int, sigsetjmp, void *env) |
| 456 | DEFINE_REAL(int, __sigsetjmp, void *env) |
| 457 | |
| 458 | TSAN_INTERCEPTOR(void, longjmp, uptr *env, int val) { |
| 459 | { |
| 460 | SCOPED_TSAN_INTERCEPTOR(longjmp, env, val); |
| 461 | } |
| 462 | LongJmp(cur_thread(), env); |
| 463 | REAL(longjmp)(env, val); |
| 464 | } |
| 465 | |
| 466 | TSAN_INTERCEPTOR(void, siglongjmp, uptr *env, int val) { |
| 467 | { |
| 468 | SCOPED_TSAN_INTERCEPTOR(siglongjmp, env, val); |
| 469 | } |
| 470 | LongJmp(cur_thread(), env); |
| 471 | REAL(siglongjmp)(env, val); |
Dmitry Vyukov | f037f56 | 2012-05-31 18:03:59 +0000 | [diff] [blame] | 472 | } |
| 473 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 474 | TSAN_INTERCEPTOR(void*, malloc, uptr size) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 475 | if (cur_thread()->in_symbolizer) |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 476 | return __libc_malloc(size); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 477 | void *p = 0; |
| 478 | { |
| 479 | SCOPED_INTERCEPTOR_RAW(malloc, size); |
| 480 | p = user_alloc(thr, pc, size); |
| 481 | } |
| 482 | invoke_malloc_hook(p, size); |
| 483 | return p; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 484 | } |
| 485 | |
Dmitry Vyukov | 07ba8ef | 2012-11-30 17:27:58 +0000 | [diff] [blame] | 486 | TSAN_INTERCEPTOR(void*, __libc_memalign, uptr align, uptr sz) { |
| 487 | SCOPED_TSAN_INTERCEPTOR(__libc_memalign, align, sz); |
Dmitry Vyukov | 543b94a | 2012-11-30 17:45:53 +0000 | [diff] [blame] | 488 | return user_alloc(thr, pc, sz, align); |
Dmitry Vyukov | 07ba8ef | 2012-11-30 17:27:58 +0000 | [diff] [blame] | 489 | } |
| 490 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 491 | TSAN_INTERCEPTOR(void*, calloc, uptr size, uptr n) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 492 | if (cur_thread()->in_symbolizer) |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 493 | return __libc_calloc(size, n); |
Kostya Serebryany | bd33d3a | 2013-09-06 11:04:14 +0000 | [diff] [blame] | 494 | if (__sanitizer::CallocShouldReturnNullDueToOverflow(size, n)) |
| 495 | return AllocatorReturnNull(); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 496 | void *p = 0; |
| 497 | { |
| 498 | SCOPED_INTERCEPTOR_RAW(calloc, size, n); |
| 499 | p = user_alloc(thr, pc, n * size); |
Dmitry Vyukov | 7423c78 | 2013-03-22 17:06:22 +0000 | [diff] [blame] | 500 | if (p) |
| 501 | internal_memset(p, 0, n * size); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 502 | } |
| 503 | invoke_malloc_hook(p, n * size); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 504 | return p; |
| 505 | } |
| 506 | |
| 507 | TSAN_INTERCEPTOR(void*, realloc, void *p, uptr size) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 508 | if (cur_thread()->in_symbolizer) |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 509 | return __libc_realloc(p, size); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 510 | if (p) |
| 511 | invoke_free_hook(p); |
| 512 | { |
| 513 | SCOPED_INTERCEPTOR_RAW(realloc, p, size); |
| 514 | p = user_realloc(thr, pc, p, size); |
| 515 | } |
| 516 | invoke_malloc_hook(p, size); |
| 517 | return p; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | TSAN_INTERCEPTOR(void, free, void *p) { |
| 521 | if (p == 0) |
| 522 | return; |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 523 | if (cur_thread()->in_symbolizer) |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 524 | return __libc_free(p); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 525 | invoke_free_hook(p); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 526 | SCOPED_INTERCEPTOR_RAW(free, p); |
| 527 | user_free(thr, pc, p); |
| 528 | } |
| 529 | |
| 530 | TSAN_INTERCEPTOR(void, cfree, void *p) { |
| 531 | if (p == 0) |
| 532 | return; |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 533 | if (cur_thread()->in_symbolizer) |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 534 | return __libc_free(p); |
Dmitry Vyukov | 05906a7 | 2012-05-21 17:39:40 +0000 | [diff] [blame] | 535 | invoke_free_hook(p); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 536 | SCOPED_INTERCEPTOR_RAW(cfree, p); |
| 537 | user_free(thr, pc, p); |
| 538 | } |
| 539 | |
Alexey Samsonov | 8a6b5e5 | 2013-02-25 08:43:10 +0000 | [diff] [blame] | 540 | TSAN_INTERCEPTOR(uptr, malloc_usable_size, void *p) { |
| 541 | SCOPED_INTERCEPTOR_RAW(malloc_usable_size, p); |
| 542 | return user_alloc_usable_size(thr, pc, p); |
| 543 | } |
| 544 | |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 545 | #define OPERATOR_NEW_BODY(mangled_name) \ |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 546 | if (cur_thread()->in_symbolizer) \ |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 547 | return __libc_malloc(size); \ |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 548 | void *p = 0; \ |
| 549 | { \ |
| 550 | SCOPED_INTERCEPTOR_RAW(mangled_name, size); \ |
| 551 | p = user_alloc(thr, pc, size); \ |
| 552 | } \ |
| 553 | invoke_malloc_hook(p, size); \ |
| 554 | return p; |
| 555 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 556 | SANITIZER_INTERFACE_ATTRIBUTE |
| 557 | void *operator new(__sanitizer::uptr size); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 558 | void *operator new(__sanitizer::uptr size) { |
| 559 | OPERATOR_NEW_BODY(_Znwm); |
| 560 | } |
Dmitry Vyukov | 1dcabd1 | 2013-06-25 15:36:25 +0000 | [diff] [blame] | 561 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 562 | SANITIZER_INTERFACE_ATTRIBUTE |
| 563 | void *operator new[](__sanitizer::uptr size); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 564 | void *operator new[](__sanitizer::uptr size) { |
| 565 | OPERATOR_NEW_BODY(_Znam); |
| 566 | } |
Dmitry Vyukov | 1dcabd1 | 2013-06-25 15:36:25 +0000 | [diff] [blame] | 567 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 568 | SANITIZER_INTERFACE_ATTRIBUTE |
| 569 | void *operator new(__sanitizer::uptr size, std::nothrow_t const&); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 570 | void *operator new(__sanitizer::uptr size, std::nothrow_t const&) { |
| 571 | OPERATOR_NEW_BODY(_ZnwmRKSt9nothrow_t); |
| 572 | } |
Dmitry Vyukov | 1dcabd1 | 2013-06-25 15:36:25 +0000 | [diff] [blame] | 573 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 574 | SANITIZER_INTERFACE_ATTRIBUTE |
| 575 | void *operator new[](__sanitizer::uptr size, std::nothrow_t const&); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 576 | void *operator new[](__sanitizer::uptr size, std::nothrow_t const&) { |
| 577 | OPERATOR_NEW_BODY(_ZnamRKSt9nothrow_t); |
| 578 | } |
| 579 | |
| 580 | #define OPERATOR_DELETE_BODY(mangled_name) \ |
| 581 | if (ptr == 0) return; \ |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 582 | if (cur_thread()->in_symbolizer) \ |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 583 | return __libc_free(ptr); \ |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 584 | invoke_free_hook(ptr); \ |
| 585 | SCOPED_INTERCEPTOR_RAW(mangled_name, ptr); \ |
| 586 | user_free(thr, pc, ptr); |
| 587 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 588 | SANITIZER_INTERFACE_ATTRIBUTE |
| 589 | void operator delete(void *ptr); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 590 | void operator delete(void *ptr) { |
| 591 | OPERATOR_DELETE_BODY(_ZdlPv); |
| 592 | } |
Dmitry Vyukov | 1dcabd1 | 2013-06-25 15:36:25 +0000 | [diff] [blame] | 593 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 594 | SANITIZER_INTERFACE_ATTRIBUTE |
| 595 | void operator delete[](void *ptr); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 596 | void operator delete[](void *ptr) { |
| 597 | OPERATOR_DELETE_BODY(_ZdlPvRKSt9nothrow_t); |
| 598 | } |
Dmitry Vyukov | 1dcabd1 | 2013-06-25 15:36:25 +0000 | [diff] [blame] | 599 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 600 | SANITIZER_INTERFACE_ATTRIBUTE |
| 601 | void operator delete(void *ptr, std::nothrow_t const&); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 602 | void operator delete(void *ptr, std::nothrow_t const&) { |
| 603 | OPERATOR_DELETE_BODY(_ZdaPv); |
| 604 | } |
Dmitry Vyukov | 1dcabd1 | 2013-06-25 15:36:25 +0000 | [diff] [blame] | 605 | |
Timur Iskhodzhanov | 3c80c6c | 2013-08-13 11:42:45 +0000 | [diff] [blame] | 606 | SANITIZER_INTERFACE_ATTRIBUTE |
| 607 | void operator delete[](void *ptr, std::nothrow_t const&); |
Alexey Samsonov | 7eff311 | 2012-09-27 09:50:19 +0000 | [diff] [blame] | 608 | void operator delete[](void *ptr, std::nothrow_t const&) { |
| 609 | OPERATOR_DELETE_BODY(_ZdaPvRKSt9nothrow_t); |
| 610 | } |
| 611 | |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 612 | TSAN_INTERCEPTOR(uptr, strlen, const char *s) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 613 | SCOPED_TSAN_INTERCEPTOR(strlen, s); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 614 | uptr len = internal_strlen(s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 615 | MemoryAccessRange(thr, pc, (uptr)s, len + 1, false); |
| 616 | return len; |
| 617 | } |
| 618 | |
Dmitry Vyukov | 065c4ac | 2012-06-29 15:19:14 +0000 | [diff] [blame] | 619 | TSAN_INTERCEPTOR(void*, memset, void *dst, int v, uptr size) { |
| 620 | SCOPED_TSAN_INTERCEPTOR(memset, dst, v, size); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 621 | MemoryAccessRange(thr, pc, (uptr)dst, size, true); |
Dmitry Vyukov | 065c4ac | 2012-06-29 15:19:14 +0000 | [diff] [blame] | 622 | return internal_memset(dst, v, size); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 623 | } |
| 624 | |
Dmitry Vyukov | 065c4ac | 2012-06-29 15:19:14 +0000 | [diff] [blame] | 625 | TSAN_INTERCEPTOR(void*, memcpy, void *dst, const void *src, uptr size) { |
| 626 | SCOPED_TSAN_INTERCEPTOR(memcpy, dst, src, size); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 627 | MemoryAccessRange(thr, pc, (uptr)dst, size, true); |
| 628 | MemoryAccessRange(thr, pc, (uptr)src, size, false); |
Dmitry Vyukov | 065c4ac | 2012-06-29 15:19:14 +0000 | [diff] [blame] | 629 | return internal_memcpy(dst, src, size); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 630 | } |
| 631 | |
Dmitry Vyukov | 065c4ac | 2012-06-29 15:19:14 +0000 | [diff] [blame] | 632 | TSAN_INTERCEPTOR(int, memcmp, const void *s1, const void *s2, uptr n) { |
| 633 | SCOPED_TSAN_INTERCEPTOR(memcmp, s1, s2, n); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 634 | int res = 0; |
| 635 | uptr len = 0; |
| 636 | for (; len < n; len++) { |
| 637 | if ((res = ((unsigned char*)s1)[len] - ((unsigned char*)s2)[len])) |
| 638 | break; |
| 639 | } |
| 640 | MemoryAccessRange(thr, pc, (uptr)s1, len < n ? len + 1 : n, false); |
| 641 | MemoryAccessRange(thr, pc, (uptr)s2, len < n ? len + 1 : n, false); |
| 642 | return res; |
| 643 | } |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 644 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 645 | TSAN_INTERCEPTOR(void*, memchr, void *s, int c, uptr n) { |
| 646 | SCOPED_TSAN_INTERCEPTOR(memchr, s, c, n); |
| 647 | void *res = REAL(memchr)(s, c, n); |
| 648 | uptr len = res ? (char*)res - (char*)s + 1 : n; |
| 649 | MemoryAccessRange(thr, pc, (uptr)s, len, false); |
| 650 | return res; |
| 651 | } |
| 652 | |
| 653 | TSAN_INTERCEPTOR(void*, memrchr, char *s, int c, uptr n) { |
| 654 | SCOPED_TSAN_INTERCEPTOR(memrchr, s, c, n); |
| 655 | MemoryAccessRange(thr, pc, (uptr)s, n, false); |
| 656 | return REAL(memrchr)(s, c, n); |
| 657 | } |
| 658 | |
| 659 | TSAN_INTERCEPTOR(void*, memmove, void *dst, void *src, uptr n) { |
| 660 | SCOPED_TSAN_INTERCEPTOR(memmove, dst, src, n); |
| 661 | MemoryAccessRange(thr, pc, (uptr)dst, n, true); |
| 662 | MemoryAccessRange(thr, pc, (uptr)src, n, false); |
| 663 | return REAL(memmove)(dst, src, n); |
| 664 | } |
| 665 | |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 666 | TSAN_INTERCEPTOR(char*, strchr, char *s, int c) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 667 | SCOPED_TSAN_INTERCEPTOR(strchr, s, c); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 668 | char *res = REAL(strchr)(s, c); |
| 669 | uptr len = res ? (char*)res - (char*)s + 1 : internal_strlen(s) + 1; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 670 | MemoryAccessRange(thr, pc, (uptr)s, len, false); |
| 671 | return res; |
| 672 | } |
| 673 | |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 674 | TSAN_INTERCEPTOR(char*, strchrnul, char *s, int c) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 675 | SCOPED_TSAN_INTERCEPTOR(strchrnul, s, c); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 676 | char *res = REAL(strchrnul)(s, c); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 677 | uptr len = (char*)res - (char*)s + 1; |
| 678 | MemoryAccessRange(thr, pc, (uptr)s, len, false); |
| 679 | return res; |
| 680 | } |
| 681 | |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 682 | TSAN_INTERCEPTOR(char*, strrchr, char *s, int c) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 683 | SCOPED_TSAN_INTERCEPTOR(strrchr, s, c); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 684 | MemoryAccessRange(thr, pc, (uptr)s, internal_strlen(s) + 1, false); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 685 | return REAL(strrchr)(s, c); |
| 686 | } |
| 687 | |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 688 | TSAN_INTERCEPTOR(char*, strcpy, char *dst, const char *src) { // NOLINT |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 689 | SCOPED_TSAN_INTERCEPTOR(strcpy, dst, src); // NOLINT |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 690 | uptr srclen = internal_strlen(src); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 691 | MemoryAccessRange(thr, pc, (uptr)dst, srclen + 1, true); |
| 692 | MemoryAccessRange(thr, pc, (uptr)src, srclen + 1, false); |
| 693 | return REAL(strcpy)(dst, src); // NOLINT |
| 694 | } |
| 695 | |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 696 | TSAN_INTERCEPTOR(char*, strncpy, char *dst, char *src, uptr n) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 697 | SCOPED_TSAN_INTERCEPTOR(strncpy, dst, src, n); |
Kostya Serebryany | b93c3d5 | 2012-07-13 13:04:43 +0000 | [diff] [blame] | 698 | uptr srclen = internal_strnlen(src, n); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 699 | MemoryAccessRange(thr, pc, (uptr)dst, n, true); |
| 700 | MemoryAccessRange(thr, pc, (uptr)src, min(srclen + 1, n), false); |
| 701 | return REAL(strncpy)(dst, src, n); |
| 702 | } |
| 703 | |
| 704 | TSAN_INTERCEPTOR(const char*, strstr, const char *s1, const char *s2) { |
| 705 | SCOPED_TSAN_INTERCEPTOR(strstr, s1, s2); |
| 706 | const char *res = REAL(strstr)(s1, s2); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 707 | uptr len1 = internal_strlen(s1); |
| 708 | uptr len2 = internal_strlen(s2); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 709 | MemoryAccessRange(thr, pc, (uptr)s1, len1 + 1, false); |
| 710 | MemoryAccessRange(thr, pc, (uptr)s2, len2 + 1, false); |
| 711 | return res; |
| 712 | } |
| 713 | |
Dmitry Vyukov | 39fa68e | 2013-09-21 23:44:19 +0000 | [diff] [blame] | 714 | TSAN_INTERCEPTOR(char*, strdup, const char *str) { |
| 715 | SCOPED_TSAN_INTERCEPTOR(strdup, str); |
Dmitry Vyukov | 39fa68e | 2013-09-21 23:44:19 +0000 | [diff] [blame] | 716 | // strdup will call malloc, so no instrumentation is required here. |
| 717 | return REAL(strdup)(str); |
| 718 | } |
| 719 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 720 | static bool fix_mmap_addr(void **addr, long_t sz, int flags) { |
| 721 | if (*addr) { |
| 722 | if (!IsAppMem((uptr)*addr) || !IsAppMem((uptr)*addr + sz - 1)) { |
| 723 | if (flags & MAP_FIXED) { |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 724 | errno = EINVAL; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 725 | return false; |
| 726 | } else { |
| 727 | *addr = 0; |
| 728 | } |
| 729 | } |
| 730 | } |
| 731 | return true; |
| 732 | } |
| 733 | |
| 734 | TSAN_INTERCEPTOR(void*, mmap, void *addr, long_t sz, int prot, |
| 735 | int flags, int fd, unsigned off) { |
| 736 | SCOPED_TSAN_INTERCEPTOR(mmap, addr, sz, prot, flags, fd, off); |
| 737 | if (!fix_mmap_addr(&addr, sz, flags)) |
| 738 | return MAP_FAILED; |
| 739 | void *res = REAL(mmap)(addr, sz, prot, flags, fd, off); |
| 740 | if (res != MAP_FAILED) { |
Dmitry Vyukov | c05cbca | 2013-02-01 15:52:35 +0000 | [diff] [blame] | 741 | if (fd > 0) |
| 742 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 74172de | 2013-03-18 16:56:48 +0000 | [diff] [blame] | 743 | MemoryRangeImitateWrite(thr, pc, (uptr)res, sz); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 744 | } |
| 745 | return res; |
| 746 | } |
| 747 | |
| 748 | TSAN_INTERCEPTOR(void*, mmap64, void *addr, long_t sz, int prot, |
| 749 | int flags, int fd, u64 off) { |
| 750 | SCOPED_TSAN_INTERCEPTOR(mmap64, addr, sz, prot, flags, fd, off); |
| 751 | if (!fix_mmap_addr(&addr, sz, flags)) |
| 752 | return MAP_FAILED; |
| 753 | void *res = REAL(mmap64)(addr, sz, prot, flags, fd, off); |
| 754 | if (res != MAP_FAILED) { |
Dmitry Vyukov | c05cbca | 2013-02-01 15:52:35 +0000 | [diff] [blame] | 755 | if (fd > 0) |
| 756 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 74172de | 2013-03-18 16:56:48 +0000 | [diff] [blame] | 757 | MemoryRangeImitateWrite(thr, pc, (uptr)res, sz); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 758 | } |
| 759 | return res; |
| 760 | } |
| 761 | |
| 762 | TSAN_INTERCEPTOR(int, munmap, void *addr, long_t sz) { |
| 763 | SCOPED_TSAN_INTERCEPTOR(munmap, addr, sz); |
Dmitry Vyukov | 7ac33ac | 2013-03-18 15:49:07 +0000 | [diff] [blame] | 764 | DontNeedShadowFor((uptr)addr, sz); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 765 | int res = REAL(munmap)(addr, sz); |
| 766 | return res; |
| 767 | } |
| 768 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 769 | TSAN_INTERCEPTOR(void*, memalign, uptr align, uptr sz) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 770 | SCOPED_INTERCEPTOR_RAW(memalign, align, sz); |
Dmitry Vyukov | 2e87051 | 2012-08-15 15:35:15 +0000 | [diff] [blame] | 771 | return user_alloc(thr, pc, sz, align); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | TSAN_INTERCEPTOR(void*, valloc, uptr sz) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 775 | SCOPED_INTERCEPTOR_RAW(valloc, sz); |
Kostya Serebryany | f67ec2b | 2012-11-23 15:38:49 +0000 | [diff] [blame] | 776 | return user_alloc(thr, pc, sz, GetPageSizeCached()); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 777 | } |
| 778 | |
| 779 | TSAN_INTERCEPTOR(void*, pvalloc, uptr sz) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 780 | SCOPED_INTERCEPTOR_RAW(pvalloc, sz); |
Kostya Serebryany | f67ec2b | 2012-11-23 15:38:49 +0000 | [diff] [blame] | 781 | sz = RoundUp(sz, GetPageSizeCached()); |
| 782 | return user_alloc(thr, pc, sz, GetPageSizeCached()); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 783 | } |
| 784 | |
| 785 | TSAN_INTERCEPTOR(int, posix_memalign, void **memptr, uptr align, uptr sz) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 786 | SCOPED_INTERCEPTOR_RAW(posix_memalign, memptr, align, sz); |
Dmitry Vyukov | 2e87051 | 2012-08-15 15:35:15 +0000 | [diff] [blame] | 787 | *memptr = user_alloc(thr, pc, sz, align); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 788 | return 0; |
| 789 | } |
| 790 | |
| 791 | // Used in thread-safe function static initialization. |
Dmitry Vyukov | 1ffeded | 2012-12-05 12:10:22 +0000 | [diff] [blame] | 792 | extern "C" int INTERFACE_ATTRIBUTE __cxa_guard_acquire(atomic_uint32_t *g) { |
| 793 | SCOPED_INTERCEPTOR_RAW(__cxa_guard_acquire, g); |
| 794 | for (;;) { |
| 795 | u32 cmp = atomic_load(g, memory_order_acquire); |
| 796 | if (cmp == 0) { |
| 797 | if (atomic_compare_exchange_strong(g, &cmp, 1<<16, memory_order_relaxed)) |
| 798 | return 1; |
| 799 | } else if (cmp == 1) { |
| 800 | Acquire(thr, pc, (uptr)g); |
| 801 | return 0; |
| 802 | } else { |
| 803 | internal_sched_yield(); |
| 804 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 805 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 806 | } |
| 807 | |
Dmitry Vyukov | 1ffeded | 2012-12-05 12:10:22 +0000 | [diff] [blame] | 808 | extern "C" void INTERFACE_ATTRIBUTE __cxa_guard_release(atomic_uint32_t *g) { |
| 809 | SCOPED_INTERCEPTOR_RAW(__cxa_guard_release, g); |
| 810 | Release(thr, pc, (uptr)g); |
| 811 | atomic_store(g, 1, memory_order_release); |
| 812 | } |
| 813 | |
| 814 | extern "C" void INTERFACE_ATTRIBUTE __cxa_guard_abort(atomic_uint32_t *g) { |
| 815 | SCOPED_INTERCEPTOR_RAW(__cxa_guard_abort, g); |
| 816 | atomic_store(g, 0, memory_order_relaxed); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | static void thread_finalize(void *v) { |
| 820 | uptr iter = (uptr)v; |
| 821 | if (iter > 1) { |
| 822 | if (pthread_setspecific(g_thread_finalize_key, (void*)(iter - 1))) { |
Alexey Samsonov | b1fe302 | 2012-11-02 12:17:51 +0000 | [diff] [blame] | 823 | Printf("ThreadSanitizer: failed to set thread key\n"); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 824 | Die(); |
| 825 | } |
| 826 | return; |
| 827 | } |
| 828 | { |
| 829 | ScopedInRtl in_rtl; |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 830 | ThreadState *thr = cur_thread(); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 831 | ThreadFinish(thr); |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 832 | SignalContext *sctx = thr->signal_ctx; |
| 833 | if (sctx) { |
| 834 | thr->signal_ctx = 0; |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 835 | UnmapOrDie(sctx, sizeof(*sctx)); |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 836 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 837 | } |
| 838 | } |
| 839 | |
| 840 | |
| 841 | struct ThreadParam { |
| 842 | void* (*callback)(void *arg); |
| 843 | void *param; |
| 844 | atomic_uintptr_t tid; |
| 845 | }; |
| 846 | |
| 847 | extern "C" void *__tsan_thread_start_func(void *arg) { |
| 848 | ThreadParam *p = (ThreadParam*)arg; |
| 849 | void* (*callback)(void *arg) = p->callback; |
| 850 | void *param = p->param; |
| 851 | int tid = 0; |
| 852 | { |
| 853 | ThreadState *thr = cur_thread(); |
| 854 | ScopedInRtl in_rtl; |
Sergey Matveev | 6eb836f | 2013-10-11 12:09:49 +0000 | [diff] [blame] | 855 | if (pthread_setspecific(g_thread_finalize_key, |
| 856 | (void *)kPthreadDestructorIterations)) { |
Alexey Samsonov | b1fe302 | 2012-11-02 12:17:51 +0000 | [diff] [blame] | 857 | Printf("ThreadSanitizer: failed to set thread key\n"); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 858 | Die(); |
| 859 | } |
| 860 | while ((tid = atomic_load(&p->tid, memory_order_acquire)) == 0) |
| 861 | pthread_yield(); |
| 862 | atomic_store(&p->tid, 0, memory_order_release); |
Dmitry Vyukov | 7dccf3f | 2012-10-02 11:52:05 +0000 | [diff] [blame] | 863 | ThreadStart(thr, tid, GetTid()); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 864 | CHECK_EQ(thr->in_rtl, 1); |
| 865 | } |
| 866 | void *res = callback(param); |
| 867 | // Prevent the callback from being tail called, |
| 868 | // it mixes up stack traces. |
| 869 | volatile int foo = 42; |
| 870 | foo++; |
| 871 | return res; |
| 872 | } |
| 873 | |
| 874 | TSAN_INTERCEPTOR(int, pthread_create, |
| 875 | void *th, void *attr, void *(*callback)(void*), void * param) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 876 | SCOPED_INTERCEPTOR_RAW(pthread_create, th, attr, callback, param); |
Alexey Samsonov | f110e35 | 2013-03-14 07:10:52 +0000 | [diff] [blame] | 877 | __sanitizer_pthread_attr_t myattr; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 878 | if (attr == 0) { |
| 879 | pthread_attr_init(&myattr); |
| 880 | attr = &myattr; |
| 881 | } |
| 882 | int detached = 0; |
Evgeniy Stepanov | e236dbb | 2013-10-25 13:01:31 +0000 | [diff] [blame] | 883 | REAL(pthread_attr_getdetachstate)(attr, &detached); |
Dmitry Vyukov | 06cbed8 | 2013-10-15 14:12:26 +0000 | [diff] [blame] | 884 | AdjustStackSizeLinux(attr); |
Evgeniy Stepanov | b9bf700 | 2013-03-19 09:30:52 +0000 | [diff] [blame] | 885 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 886 | ThreadParam p; |
| 887 | p.callback = callback; |
| 888 | p.param = param; |
| 889 | atomic_store(&p.tid, 0, memory_order_relaxed); |
| 890 | int res = REAL(pthread_create)(th, attr, __tsan_thread_start_func, &p); |
| 891 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 892 | int tid = ThreadCreate(thr, pc, *(uptr*)th, detached); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 893 | CHECK_NE(tid, 0); |
| 894 | atomic_store(&p.tid, tid, memory_order_release); |
| 895 | while (atomic_load(&p.tid, memory_order_acquire) != 0) |
| 896 | pthread_yield(); |
| 897 | } |
| 898 | if (attr == &myattr) |
| 899 | pthread_attr_destroy(&myattr); |
| 900 | return res; |
| 901 | } |
| 902 | |
| 903 | TSAN_INTERCEPTOR(int, pthread_join, void *th, void **ret) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 904 | SCOPED_INTERCEPTOR_RAW(pthread_join, th, ret); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 905 | int tid = ThreadTid(thr, pc, (uptr)th); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 906 | int res = BLOCK_REAL(pthread_join)(th, ret); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 907 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 908 | ThreadJoin(thr, pc, tid); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 909 | } |
| 910 | return res; |
| 911 | } |
| 912 | |
| 913 | TSAN_INTERCEPTOR(int, pthread_detach, void *th) { |
| 914 | SCOPED_TSAN_INTERCEPTOR(pthread_detach, th); |
| 915 | int tid = ThreadTid(thr, pc, (uptr)th); |
| 916 | int res = REAL(pthread_detach)(th); |
| 917 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 918 | ThreadDetach(thr, pc, tid); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 919 | } |
| 920 | return res; |
| 921 | } |
| 922 | |
| 923 | TSAN_INTERCEPTOR(int, pthread_mutex_init, void *m, void *a) { |
| 924 | SCOPED_TSAN_INTERCEPTOR(pthread_mutex_init, m, a); |
| 925 | int res = REAL(pthread_mutex_init)(m, a); |
| 926 | if (res == 0) { |
| 927 | bool recursive = false; |
| 928 | if (a) { |
| 929 | int type = 0; |
| 930 | if (pthread_mutexattr_gettype(a, &type) == 0) |
| 931 | recursive = (type == PTHREAD_MUTEX_RECURSIVE |
| 932 | || type == PTHREAD_MUTEX_RECURSIVE_NP); |
| 933 | } |
Dmitry Vyukov | c20e9ba | 2012-08-16 13:29:41 +0000 | [diff] [blame] | 934 | MutexCreate(thr, pc, (uptr)m, false, recursive, false); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 935 | } |
| 936 | return res; |
| 937 | } |
| 938 | |
| 939 | TSAN_INTERCEPTOR(int, pthread_mutex_destroy, void *m) { |
| 940 | SCOPED_TSAN_INTERCEPTOR(pthread_mutex_destroy, m); |
| 941 | int res = REAL(pthread_mutex_destroy)(m); |
| 942 | if (res == 0 || res == EBUSY) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 943 | MutexDestroy(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 944 | } |
| 945 | return res; |
| 946 | } |
| 947 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 948 | TSAN_INTERCEPTOR(int, pthread_mutex_trylock, void *m) { |
| 949 | SCOPED_TSAN_INTERCEPTOR(pthread_mutex_trylock, m); |
| 950 | int res = REAL(pthread_mutex_trylock)(m); |
| 951 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 952 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 953 | } |
| 954 | return res; |
| 955 | } |
| 956 | |
| 957 | TSAN_INTERCEPTOR(int, pthread_mutex_timedlock, void *m, void *abstime) { |
| 958 | SCOPED_TSAN_INTERCEPTOR(pthread_mutex_timedlock, m, abstime); |
| 959 | int res = REAL(pthread_mutex_timedlock)(m, abstime); |
| 960 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 961 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 962 | } |
| 963 | return res; |
| 964 | } |
| 965 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 966 | TSAN_INTERCEPTOR(int, pthread_spin_init, void *m, int pshared) { |
| 967 | SCOPED_TSAN_INTERCEPTOR(pthread_spin_init, m, pshared); |
| 968 | int res = REAL(pthread_spin_init)(m, pshared); |
| 969 | if (res == 0) { |
Dmitry Vyukov | c20e9ba | 2012-08-16 13:29:41 +0000 | [diff] [blame] | 970 | MutexCreate(thr, pc, (uptr)m, false, false, false); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 971 | } |
| 972 | return res; |
| 973 | } |
| 974 | |
| 975 | TSAN_INTERCEPTOR(int, pthread_spin_destroy, void *m) { |
| 976 | SCOPED_TSAN_INTERCEPTOR(pthread_spin_destroy, m); |
| 977 | int res = REAL(pthread_spin_destroy)(m); |
| 978 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 979 | MutexDestroy(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 980 | } |
| 981 | return res; |
| 982 | } |
| 983 | |
| 984 | TSAN_INTERCEPTOR(int, pthread_spin_lock, void *m) { |
| 985 | SCOPED_TSAN_INTERCEPTOR(pthread_spin_lock, m); |
| 986 | int res = REAL(pthread_spin_lock)(m); |
| 987 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 988 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 989 | } |
| 990 | return res; |
| 991 | } |
| 992 | |
| 993 | TSAN_INTERCEPTOR(int, pthread_spin_trylock, void *m) { |
| 994 | SCOPED_TSAN_INTERCEPTOR(pthread_spin_trylock, m); |
| 995 | int res = REAL(pthread_spin_trylock)(m); |
| 996 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 997 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 998 | } |
| 999 | return res; |
| 1000 | } |
| 1001 | |
| 1002 | TSAN_INTERCEPTOR(int, pthread_spin_unlock, void *m) { |
| 1003 | SCOPED_TSAN_INTERCEPTOR(pthread_spin_unlock, m); |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1004 | MutexUnlock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1005 | int res = REAL(pthread_spin_unlock)(m); |
| 1006 | return res; |
| 1007 | } |
| 1008 | |
| 1009 | TSAN_INTERCEPTOR(int, pthread_rwlock_init, void *m, void *a) { |
| 1010 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_init, m, a); |
| 1011 | int res = REAL(pthread_rwlock_init)(m, a); |
| 1012 | if (res == 0) { |
Dmitry Vyukov | c20e9ba | 2012-08-16 13:29:41 +0000 | [diff] [blame] | 1013 | MutexCreate(thr, pc, (uptr)m, true, false, false); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1014 | } |
| 1015 | return res; |
| 1016 | } |
| 1017 | |
| 1018 | TSAN_INTERCEPTOR(int, pthread_rwlock_destroy, void *m) { |
| 1019 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_destroy, m); |
| 1020 | int res = REAL(pthread_rwlock_destroy)(m); |
| 1021 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1022 | MutexDestroy(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1023 | } |
| 1024 | return res; |
| 1025 | } |
| 1026 | |
| 1027 | TSAN_INTERCEPTOR(int, pthread_rwlock_rdlock, void *m) { |
| 1028 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_rdlock, m); |
| 1029 | int res = REAL(pthread_rwlock_rdlock)(m); |
| 1030 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1031 | MutexReadLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1032 | } |
| 1033 | return res; |
| 1034 | } |
| 1035 | |
| 1036 | TSAN_INTERCEPTOR(int, pthread_rwlock_tryrdlock, void *m) { |
| 1037 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_tryrdlock, m); |
| 1038 | int res = REAL(pthread_rwlock_tryrdlock)(m); |
| 1039 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1040 | MutexReadLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1041 | } |
| 1042 | return res; |
| 1043 | } |
| 1044 | |
| 1045 | TSAN_INTERCEPTOR(int, pthread_rwlock_timedrdlock, void *m, void *abstime) { |
| 1046 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_timedrdlock, m, abstime); |
| 1047 | int res = REAL(pthread_rwlock_timedrdlock)(m, abstime); |
| 1048 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1049 | MutexReadLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1050 | } |
| 1051 | return res; |
| 1052 | } |
| 1053 | |
| 1054 | TSAN_INTERCEPTOR(int, pthread_rwlock_wrlock, void *m) { |
| 1055 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_wrlock, m); |
| 1056 | int res = REAL(pthread_rwlock_wrlock)(m); |
| 1057 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1058 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1059 | } |
| 1060 | return res; |
| 1061 | } |
| 1062 | |
| 1063 | TSAN_INTERCEPTOR(int, pthread_rwlock_trywrlock, void *m) { |
| 1064 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_trywrlock, m); |
| 1065 | int res = REAL(pthread_rwlock_trywrlock)(m); |
| 1066 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1067 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1068 | } |
| 1069 | return res; |
| 1070 | } |
| 1071 | |
| 1072 | TSAN_INTERCEPTOR(int, pthread_rwlock_timedwrlock, void *m, void *abstime) { |
| 1073 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_timedwrlock, m, abstime); |
| 1074 | int res = REAL(pthread_rwlock_timedwrlock)(m, abstime); |
| 1075 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1076 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1077 | } |
| 1078 | return res; |
| 1079 | } |
| 1080 | |
| 1081 | TSAN_INTERCEPTOR(int, pthread_rwlock_unlock, void *m) { |
| 1082 | SCOPED_TSAN_INTERCEPTOR(pthread_rwlock_unlock, m); |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1083 | MutexReadOrWriteUnlock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1084 | int res = REAL(pthread_rwlock_unlock)(m); |
| 1085 | return res; |
| 1086 | } |
| 1087 | |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 1088 | TSAN_INTERCEPTOR(int, pthread_cond_destroy, void *c) { |
| 1089 | SCOPED_TSAN_INTERCEPTOR(pthread_cond_destroy, c); |
Dmitry Vyukov | 8cde5cb | 2013-09-03 15:04:15 +0000 | [diff] [blame] | 1090 | MemoryWrite(thr, pc, (uptr)c, kSizeLog1); |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 1091 | int res = REAL(pthread_cond_destroy)(c); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1092 | return res; |
| 1093 | } |
| 1094 | |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 1095 | TSAN_INTERCEPTOR(int, pthread_cond_timedwait, void *c, void *m, |
Dmitry Vyukov | f061554 | 2013-09-02 18:06:28 +0000 | [diff] [blame] | 1096 | void *abstime) { |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 1097 | SCOPED_TSAN_INTERCEPTOR(pthread_cond_timedwait, c, m, abstime); |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1098 | MutexUnlock(thr, pc, (uptr)m); |
Dmitry Vyukov | 8cde5cb | 2013-09-03 15:04:15 +0000 | [diff] [blame] | 1099 | MemoryRead(thr, pc, (uptr)c, kSizeLog1); |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 1100 | int res = REAL(pthread_cond_timedwait)(c, m, abstime); |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1101 | MutexLock(thr, pc, (uptr)m); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1102 | return res; |
| 1103 | } |
| 1104 | |
| 1105 | TSAN_INTERCEPTOR(int, pthread_barrier_init, void *b, void *a, unsigned count) { |
| 1106 | SCOPED_TSAN_INTERCEPTOR(pthread_barrier_init, b, a, count); |
Dmitry Vyukov | 334553e | 2013-02-01 09:42:06 +0000 | [diff] [blame] | 1107 | MemoryWrite(thr, pc, (uptr)b, kSizeLog1); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1108 | int res = REAL(pthread_barrier_init)(b, a, count); |
| 1109 | return res; |
| 1110 | } |
| 1111 | |
| 1112 | TSAN_INTERCEPTOR(int, pthread_barrier_destroy, void *b) { |
| 1113 | SCOPED_TSAN_INTERCEPTOR(pthread_barrier_destroy, b); |
Dmitry Vyukov | 334553e | 2013-02-01 09:42:06 +0000 | [diff] [blame] | 1114 | MemoryWrite(thr, pc, (uptr)b, kSizeLog1); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1115 | int res = REAL(pthread_barrier_destroy)(b); |
| 1116 | return res; |
| 1117 | } |
| 1118 | |
| 1119 | TSAN_INTERCEPTOR(int, pthread_barrier_wait, void *b) { |
| 1120 | SCOPED_TSAN_INTERCEPTOR(pthread_barrier_wait, b); |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1121 | Release(thr, pc, (uptr)b); |
Dmitry Vyukov | 334553e | 2013-02-01 09:42:06 +0000 | [diff] [blame] | 1122 | MemoryRead(thr, pc, (uptr)b, kSizeLog1); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1123 | int res = REAL(pthread_barrier_wait)(b); |
Dmitry Vyukov | 334553e | 2013-02-01 09:42:06 +0000 | [diff] [blame] | 1124 | MemoryRead(thr, pc, (uptr)b, kSizeLog1); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1125 | if (res == 0 || res == PTHREAD_BARRIER_SERIAL_THREAD) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1126 | Acquire(thr, pc, (uptr)b); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1127 | } |
| 1128 | return res; |
| 1129 | } |
| 1130 | |
| 1131 | TSAN_INTERCEPTOR(int, pthread_once, void *o, void (*f)()) { |
Dmitry Vyukov | 9fe1d5a | 2013-10-04 10:27:21 +0000 | [diff] [blame] | 1132 | SCOPED_INTERCEPTOR_RAW(pthread_once, o, f); |
| 1133 | // Using SCOPED_INTERCEPTOR_RAW, because if we are called from an ignored lib, |
| 1134 | // the user callback must be executed with thr->in_rtl == 0. |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1135 | if (o == 0 || f == 0) |
| 1136 | return EINVAL; |
| 1137 | atomic_uint32_t *a = static_cast<atomic_uint32_t*>(o); |
| 1138 | u32 v = atomic_load(a, memory_order_acquire); |
| 1139 | if (v == 0 && atomic_compare_exchange_strong(a, &v, 1, |
| 1140 | memory_order_relaxed)) { |
| 1141 | const int old_in_rtl = thr->in_rtl; |
| 1142 | thr->in_rtl = 0; |
| 1143 | (*f)(); |
| 1144 | CHECK_EQ(thr->in_rtl, 0); |
| 1145 | thr->in_rtl = old_in_rtl; |
Dmitry Vyukov | 9fe1d5a | 2013-10-04 10:27:21 +0000 | [diff] [blame] | 1146 | if (!thr->in_ignored_lib) |
| 1147 | Release(thr, pc, (uptr)o); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1148 | atomic_store(a, 2, memory_order_release); |
| 1149 | } else { |
| 1150 | while (v != 2) { |
| 1151 | pthread_yield(); |
| 1152 | v = atomic_load(a, memory_order_acquire); |
| 1153 | } |
Dmitry Vyukov | 9fe1d5a | 2013-10-04 10:27:21 +0000 | [diff] [blame] | 1154 | if (!thr->in_ignored_lib) |
| 1155 | Acquire(thr, pc, (uptr)o); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1156 | } |
| 1157 | return 0; |
| 1158 | } |
| 1159 | |
| 1160 | TSAN_INTERCEPTOR(int, sem_init, void *s, int pshared, unsigned value) { |
| 1161 | SCOPED_TSAN_INTERCEPTOR(sem_init, s, pshared, value); |
| 1162 | int res = REAL(sem_init)(s, pshared, value); |
| 1163 | return res; |
| 1164 | } |
| 1165 | |
| 1166 | TSAN_INTERCEPTOR(int, sem_destroy, void *s) { |
| 1167 | SCOPED_TSAN_INTERCEPTOR(sem_destroy, s); |
| 1168 | int res = REAL(sem_destroy)(s); |
| 1169 | return res; |
| 1170 | } |
| 1171 | |
| 1172 | TSAN_INTERCEPTOR(int, sem_wait, void *s) { |
| 1173 | SCOPED_TSAN_INTERCEPTOR(sem_wait, s); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1174 | int res = BLOCK_REAL(sem_wait)(s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1175 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1176 | Acquire(thr, pc, (uptr)s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1177 | } |
| 1178 | return res; |
| 1179 | } |
| 1180 | |
| 1181 | TSAN_INTERCEPTOR(int, sem_trywait, void *s) { |
| 1182 | SCOPED_TSAN_INTERCEPTOR(sem_trywait, s); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1183 | int res = BLOCK_REAL(sem_trywait)(s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1184 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1185 | Acquire(thr, pc, (uptr)s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1186 | } |
| 1187 | return res; |
| 1188 | } |
| 1189 | |
| 1190 | TSAN_INTERCEPTOR(int, sem_timedwait, void *s, void *abstime) { |
| 1191 | SCOPED_TSAN_INTERCEPTOR(sem_timedwait, s, abstime); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1192 | int res = BLOCK_REAL(sem_timedwait)(s, abstime); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1193 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1194 | Acquire(thr, pc, (uptr)s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1195 | } |
| 1196 | return res; |
| 1197 | } |
| 1198 | |
| 1199 | TSAN_INTERCEPTOR(int, sem_post, void *s) { |
| 1200 | SCOPED_TSAN_INTERCEPTOR(sem_post, s); |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1201 | Release(thr, pc, (uptr)s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1202 | int res = REAL(sem_post)(s); |
| 1203 | return res; |
| 1204 | } |
| 1205 | |
| 1206 | TSAN_INTERCEPTOR(int, sem_getvalue, void *s, int *sval) { |
| 1207 | SCOPED_TSAN_INTERCEPTOR(sem_getvalue, s, sval); |
| 1208 | int res = REAL(sem_getvalue)(s, sval); |
| 1209 | if (res == 0) { |
Dmitry Vyukov | 64310b2 | 2012-08-16 13:26:54 +0000 | [diff] [blame] | 1210 | Acquire(thr, pc, (uptr)s); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1211 | } |
| 1212 | return res; |
| 1213 | } |
| 1214 | |
Dmitry Vyukov | 61ba1b5 | 2013-01-29 09:23:09 +0000 | [diff] [blame] | 1215 | TSAN_INTERCEPTOR(int, __xstat, int version, const char *path, void *buf) { |
| 1216 | SCOPED_TSAN_INTERCEPTOR(__xstat, version, path, buf); |
| 1217 | return REAL(__xstat)(version, path, buf); |
| 1218 | } |
| 1219 | |
| 1220 | TSAN_INTERCEPTOR(int, stat, const char *path, void *buf) { |
| 1221 | SCOPED_TSAN_INTERCEPTOR(__xstat, 0, path, buf); |
| 1222 | return REAL(__xstat)(0, path, buf); |
| 1223 | } |
| 1224 | |
| 1225 | TSAN_INTERCEPTOR(int, __xstat64, int version, const char *path, void *buf) { |
| 1226 | SCOPED_TSAN_INTERCEPTOR(__xstat64, version, path, buf); |
| 1227 | return REAL(__xstat64)(version, path, buf); |
| 1228 | } |
| 1229 | |
| 1230 | TSAN_INTERCEPTOR(int, stat64, const char *path, void *buf) { |
| 1231 | SCOPED_TSAN_INTERCEPTOR(__xstat64, 0, path, buf); |
| 1232 | return REAL(__xstat64)(0, path, buf); |
| 1233 | } |
| 1234 | |
| 1235 | TSAN_INTERCEPTOR(int, __lxstat, int version, const char *path, void *buf) { |
| 1236 | SCOPED_TSAN_INTERCEPTOR(__lxstat, version, path, buf); |
| 1237 | return REAL(__lxstat)(version, path, buf); |
| 1238 | } |
| 1239 | |
| 1240 | TSAN_INTERCEPTOR(int, lstat, const char *path, void *buf) { |
| 1241 | SCOPED_TSAN_INTERCEPTOR(__lxstat, 0, path, buf); |
| 1242 | return REAL(__lxstat)(0, path, buf); |
| 1243 | } |
| 1244 | |
| 1245 | TSAN_INTERCEPTOR(int, __lxstat64, int version, const char *path, void *buf) { |
| 1246 | SCOPED_TSAN_INTERCEPTOR(__lxstat64, version, path, buf); |
| 1247 | return REAL(__lxstat64)(version, path, buf); |
| 1248 | } |
| 1249 | |
| 1250 | TSAN_INTERCEPTOR(int, lstat64, const char *path, void *buf) { |
| 1251 | SCOPED_TSAN_INTERCEPTOR(__lxstat64, 0, path, buf); |
| 1252 | return REAL(__lxstat64)(0, path, buf); |
| 1253 | } |
| 1254 | |
| 1255 | TSAN_INTERCEPTOR(int, __fxstat, int version, int fd, void *buf) { |
| 1256 | SCOPED_TSAN_INTERCEPTOR(__fxstat, version, fd, buf); |
Dmitry Vyukov | c05cbca | 2013-02-01 15:52:35 +0000 | [diff] [blame] | 1257 | if (fd > 0) |
| 1258 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 61ba1b5 | 2013-01-29 09:23:09 +0000 | [diff] [blame] | 1259 | return REAL(__fxstat)(version, fd, buf); |
| 1260 | } |
| 1261 | |
| 1262 | TSAN_INTERCEPTOR(int, fstat, int fd, void *buf) { |
| 1263 | SCOPED_TSAN_INTERCEPTOR(__fxstat, 0, fd, buf); |
Dmitry Vyukov | c05cbca | 2013-02-01 15:52:35 +0000 | [diff] [blame] | 1264 | if (fd > 0) |
| 1265 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 61ba1b5 | 2013-01-29 09:23:09 +0000 | [diff] [blame] | 1266 | return REAL(__fxstat)(0, fd, buf); |
| 1267 | } |
| 1268 | |
| 1269 | TSAN_INTERCEPTOR(int, __fxstat64, int version, int fd, void *buf) { |
| 1270 | SCOPED_TSAN_INTERCEPTOR(__fxstat64, version, fd, buf); |
Dmitry Vyukov | c05cbca | 2013-02-01 15:52:35 +0000 | [diff] [blame] | 1271 | if (fd > 0) |
| 1272 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 61ba1b5 | 2013-01-29 09:23:09 +0000 | [diff] [blame] | 1273 | return REAL(__fxstat64)(version, fd, buf); |
| 1274 | } |
| 1275 | |
| 1276 | TSAN_INTERCEPTOR(int, fstat64, int fd, void *buf) { |
| 1277 | SCOPED_TSAN_INTERCEPTOR(__fxstat64, 0, fd, buf); |
Dmitry Vyukov | c05cbca | 2013-02-01 15:52:35 +0000 | [diff] [blame] | 1278 | if (fd > 0) |
| 1279 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 61ba1b5 | 2013-01-29 09:23:09 +0000 | [diff] [blame] | 1280 | return REAL(__fxstat64)(0, fd, buf); |
| 1281 | } |
| 1282 | |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1283 | TSAN_INTERCEPTOR(int, open, const char *name, int flags, int mode) { |
| 1284 | SCOPED_TSAN_INTERCEPTOR(open, name, flags, mode); |
| 1285 | int fd = REAL(open)(name, flags, mode); |
| 1286 | if (fd >= 0) |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1287 | FdFileCreate(thr, pc, fd); |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1288 | return fd; |
| 1289 | } |
| 1290 | |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1291 | TSAN_INTERCEPTOR(int, open64, const char *name, int flags, int mode) { |
| 1292 | SCOPED_TSAN_INTERCEPTOR(open64, name, flags, mode); |
| 1293 | int fd = REAL(open64)(name, flags, mode); |
| 1294 | if (fd >= 0) |
| 1295 | FdFileCreate(thr, pc, fd); |
| 1296 | return fd; |
| 1297 | } |
| 1298 | |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1299 | TSAN_INTERCEPTOR(int, creat, const char *name, int mode) { |
| 1300 | SCOPED_TSAN_INTERCEPTOR(creat, name, mode); |
| 1301 | int fd = REAL(creat)(name, mode); |
| 1302 | if (fd >= 0) |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1303 | FdFileCreate(thr, pc, fd); |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1304 | return fd; |
| 1305 | } |
| 1306 | |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1307 | TSAN_INTERCEPTOR(int, creat64, const char *name, int mode) { |
| 1308 | SCOPED_TSAN_INTERCEPTOR(creat64, name, mode); |
| 1309 | int fd = REAL(creat64)(name, mode); |
| 1310 | if (fd >= 0) |
| 1311 | FdFileCreate(thr, pc, fd); |
| 1312 | return fd; |
| 1313 | } |
| 1314 | |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1315 | TSAN_INTERCEPTOR(int, dup, int oldfd) { |
| 1316 | SCOPED_TSAN_INTERCEPTOR(dup, oldfd); |
| 1317 | int newfd = REAL(dup)(oldfd); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1318 | if (oldfd >= 0 && newfd >= 0 && newfd != oldfd) |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1319 | FdDup(thr, pc, oldfd, newfd); |
| 1320 | return newfd; |
| 1321 | } |
| 1322 | |
| 1323 | TSAN_INTERCEPTOR(int, dup2, int oldfd, int newfd) { |
| 1324 | SCOPED_TSAN_INTERCEPTOR(dup2, oldfd, newfd); |
| 1325 | int newfd2 = REAL(dup2)(oldfd, newfd); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1326 | if (oldfd >= 0 && newfd2 >= 0 && newfd2 != oldfd) |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1327 | FdDup(thr, pc, oldfd, newfd2); |
| 1328 | return newfd2; |
| 1329 | } |
| 1330 | |
| 1331 | TSAN_INTERCEPTOR(int, dup3, int oldfd, int newfd, int flags) { |
| 1332 | SCOPED_TSAN_INTERCEPTOR(dup3, oldfd, newfd, flags); |
| 1333 | int newfd2 = REAL(dup3)(oldfd, newfd, flags); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1334 | if (oldfd >= 0 && newfd2 >= 0 && newfd2 != oldfd) |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 1335 | FdDup(thr, pc, oldfd, newfd2); |
| 1336 | return newfd2; |
| 1337 | } |
| 1338 | |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1339 | TSAN_INTERCEPTOR(int, eventfd, unsigned initval, int flags) { |
| 1340 | SCOPED_TSAN_INTERCEPTOR(eventfd, initval, flags); |
| 1341 | int fd = REAL(eventfd)(initval, flags); |
| 1342 | if (fd >= 0) |
| 1343 | FdEventCreate(thr, pc, fd); |
| 1344 | return fd; |
| 1345 | } |
| 1346 | |
Dmitry Vyukov | 45d4324 | 2012-12-18 12:35:31 +0000 | [diff] [blame] | 1347 | TSAN_INTERCEPTOR(int, signalfd, int fd, void *mask, int flags) { |
| 1348 | SCOPED_TSAN_INTERCEPTOR(signalfd, fd, mask, flags); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1349 | if (fd >= 0) |
| 1350 | FdClose(thr, pc, fd); |
Dmitry Vyukov | 45d4324 | 2012-12-18 12:35:31 +0000 | [diff] [blame] | 1351 | fd = REAL(signalfd)(fd, mask, flags); |
| 1352 | if (fd >= 0) |
| 1353 | FdSignalCreate(thr, pc, fd); |
| 1354 | return fd; |
| 1355 | } |
| 1356 | |
Dmitry Vyukov | b75c67b | 2012-12-19 06:59:45 +0000 | [diff] [blame] | 1357 | TSAN_INTERCEPTOR(int, inotify_init, int fake) { |
| 1358 | SCOPED_TSAN_INTERCEPTOR(inotify_init, fake); |
| 1359 | int fd = REAL(inotify_init)(fake); |
Dmitry Vyukov | 45d4324 | 2012-12-18 12:35:31 +0000 | [diff] [blame] | 1360 | if (fd >= 0) |
| 1361 | FdInotifyCreate(thr, pc, fd); |
| 1362 | return fd; |
| 1363 | } |
| 1364 | |
| 1365 | TSAN_INTERCEPTOR(int, inotify_init1, int flags) { |
| 1366 | SCOPED_TSAN_INTERCEPTOR(inotify_init1, flags); |
| 1367 | int fd = REAL(inotify_init1)(flags); |
| 1368 | if (fd >= 0) |
| 1369 | FdInotifyCreate(thr, pc, fd); |
| 1370 | return fd; |
| 1371 | } |
| 1372 | |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1373 | TSAN_INTERCEPTOR(int, socket, int domain, int type, int protocol) { |
| 1374 | SCOPED_TSAN_INTERCEPTOR(socket, domain, type, protocol); |
| 1375 | int fd = REAL(socket)(domain, type, protocol); |
| 1376 | if (fd >= 0) |
| 1377 | FdSocketCreate(thr, pc, fd); |
| 1378 | return fd; |
| 1379 | } |
| 1380 | |
Dmitry Vyukov | 983518e | 2012-12-14 09:57:42 +0000 | [diff] [blame] | 1381 | TSAN_INTERCEPTOR(int, socketpair, int domain, int type, int protocol, int *fd) { |
| 1382 | SCOPED_TSAN_INTERCEPTOR(socketpair, domain, type, protocol, fd); |
| 1383 | int res = REAL(socketpair)(domain, type, protocol, fd); |
| 1384 | if (res == 0 && fd[0] >= 0 && fd[1] >= 0) |
| 1385 | FdPipeCreate(thr, pc, fd[0], fd[1]); |
| 1386 | return res; |
| 1387 | } |
| 1388 | |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1389 | TSAN_INTERCEPTOR(int, connect, int fd, void *addr, unsigned addrlen) { |
| 1390 | SCOPED_TSAN_INTERCEPTOR(connect, fd, addr, addrlen); |
Dmitry Vyukov | ed513f6 | 2012-12-14 20:01:58 +0000 | [diff] [blame] | 1391 | FdSocketConnecting(thr, pc, fd); |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1392 | int res = REAL(connect)(fd, addr, addrlen); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1393 | if (res == 0 && fd >= 0) |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1394 | FdSocketConnect(thr, pc, fd); |
| 1395 | return res; |
| 1396 | } |
| 1397 | |
Dmitry Vyukov | 52c70e5 | 2013-02-04 08:06:32 +0000 | [diff] [blame] | 1398 | TSAN_INTERCEPTOR(int, bind, int fd, void *addr, unsigned addrlen) { |
| 1399 | SCOPED_TSAN_INTERCEPTOR(bind, fd, addr, addrlen); |
| 1400 | int res = REAL(bind)(fd, addr, addrlen); |
| 1401 | if (fd > 0 && res == 0) |
| 1402 | FdAccess(thr, pc, fd); |
| 1403 | return res; |
| 1404 | } |
| 1405 | |
| 1406 | TSAN_INTERCEPTOR(int, listen, int fd, int backlog) { |
| 1407 | SCOPED_TSAN_INTERCEPTOR(listen, fd, backlog); |
| 1408 | int res = REAL(listen)(fd, backlog); |
| 1409 | if (fd > 0 && res == 0) |
| 1410 | FdAccess(thr, pc, fd); |
| 1411 | return res; |
| 1412 | } |
| 1413 | |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1414 | TSAN_INTERCEPTOR(int, epoll_create, int size) { |
| 1415 | SCOPED_TSAN_INTERCEPTOR(epoll_create, size); |
| 1416 | int fd = REAL(epoll_create)(size); |
| 1417 | if (fd >= 0) |
| 1418 | FdPollCreate(thr, pc, fd); |
| 1419 | return fd; |
| 1420 | } |
| 1421 | |
| 1422 | TSAN_INTERCEPTOR(int, epoll_create1, int flags) { |
| 1423 | SCOPED_TSAN_INTERCEPTOR(epoll_create1, flags); |
| 1424 | int fd = REAL(epoll_create1)(flags); |
| 1425 | if (fd >= 0) |
| 1426 | FdPollCreate(thr, pc, fd); |
| 1427 | return fd; |
| 1428 | } |
| 1429 | |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 1430 | TSAN_INTERCEPTOR(int, close, int fd) { |
| 1431 | SCOPED_TSAN_INTERCEPTOR(close, fd); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1432 | if (fd >= 0) |
| 1433 | FdClose(thr, pc, fd); |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 1434 | return REAL(close)(fd); |
| 1435 | } |
| 1436 | |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1437 | TSAN_INTERCEPTOR(int, __close, int fd) { |
| 1438 | SCOPED_TSAN_INTERCEPTOR(__close, fd); |
| 1439 | if (fd >= 0) |
| 1440 | FdClose(thr, pc, fd); |
| 1441 | return REAL(__close)(fd); |
| 1442 | } |
| 1443 | |
Dmitry Vyukov | 03f2248 | 2013-02-07 15:27:45 +0000 | [diff] [blame] | 1444 | // glibc guts |
| 1445 | TSAN_INTERCEPTOR(void, __res_iclose, void *state, bool free_addr) { |
| 1446 | SCOPED_TSAN_INTERCEPTOR(__res_iclose, state, free_addr); |
| 1447 | int fds[64]; |
| 1448 | int cnt = ExtractResolvFDs(state, fds, ARRAY_SIZE(fds)); |
| 1449 | for (int i = 0; i < cnt; i++) { |
| 1450 | if (fds[i] > 0) |
| 1451 | FdClose(thr, pc, fds[i]); |
| 1452 | } |
| 1453 | REAL(__res_iclose)(state, free_addr); |
| 1454 | } |
| 1455 | |
Dmitry Vyukov | 01e9698 | 2012-12-07 16:22:54 +0000 | [diff] [blame] | 1456 | TSAN_INTERCEPTOR(int, pipe, int *pipefd) { |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 1457 | SCOPED_TSAN_INTERCEPTOR(pipe, pipefd); |
| 1458 | int res = REAL(pipe)(pipefd); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1459 | if (res == 0 && pipefd[0] >= 0 && pipefd[1] >= 0) |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1460 | FdPipeCreate(thr, pc, pipefd[0], pipefd[1]); |
Dmitry Vyukov | 01e9698 | 2012-12-07 16:22:54 +0000 | [diff] [blame] | 1461 | return res; |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 1462 | } |
| 1463 | |
Dmitry Vyukov | 01e9698 | 2012-12-07 16:22:54 +0000 | [diff] [blame] | 1464 | TSAN_INTERCEPTOR(int, pipe2, int *pipefd, int flags) { |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 1465 | SCOPED_TSAN_INTERCEPTOR(pipe2, pipefd, flags); |
| 1466 | int res = REAL(pipe2)(pipefd, flags); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1467 | if (res == 0 && pipefd[0] >= 0 && pipefd[1] >= 0) |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 1468 | FdPipeCreate(thr, pc, pipefd[0], pipefd[1]); |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 1469 | return res; |
| 1470 | } |
| 1471 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1472 | TSAN_INTERCEPTOR(long_t, send, int fd, void *buf, long_t len, int flags) { |
| 1473 | SCOPED_TSAN_INTERCEPTOR(send, fd, buf, len, flags); |
Dmitry Vyukov | 67f5544 | 2013-10-11 14:13:11 +0000 | [diff] [blame] | 1474 | if (fd >= 0) { |
| 1475 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1476 | FdRelease(thr, pc, fd); |
Dmitry Vyukov | 67f5544 | 2013-10-11 14:13:11 +0000 | [diff] [blame] | 1477 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1478 | int res = REAL(send)(fd, buf, len, flags); |
| 1479 | return res; |
| 1480 | } |
| 1481 | |
| 1482 | TSAN_INTERCEPTOR(long_t, sendmsg, int fd, void *msg, int flags) { |
| 1483 | SCOPED_TSAN_INTERCEPTOR(sendmsg, fd, msg, flags); |
Dmitry Vyukov | 67f5544 | 2013-10-11 14:13:11 +0000 | [diff] [blame] | 1484 | if (fd >= 0) { |
| 1485 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1486 | FdRelease(thr, pc, fd); |
Dmitry Vyukov | 67f5544 | 2013-10-11 14:13:11 +0000 | [diff] [blame] | 1487 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1488 | int res = REAL(sendmsg)(fd, msg, flags); |
| 1489 | return res; |
| 1490 | } |
| 1491 | |
| 1492 | TSAN_INTERCEPTOR(long_t, recv, int fd, void *buf, long_t len, int flags) { |
| 1493 | SCOPED_TSAN_INTERCEPTOR(recv, fd, buf, len, flags); |
Dmitry Vyukov | 67f5544 | 2013-10-11 14:13:11 +0000 | [diff] [blame] | 1494 | if (fd >= 0) |
| 1495 | FdAccess(thr, pc, fd); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1496 | int res = REAL(recv)(fd, buf, len, flags); |
Dmitry Vyukov | b843c1f | 2012-12-24 11:43:34 +0000 | [diff] [blame] | 1497 | if (res >= 0 && fd >= 0) { |
Dmitry Vyukov | 3f4e6d9 | 2012-12-07 14:40:10 +0000 | [diff] [blame] | 1498 | FdAcquire(thr, pc, fd); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1499 | } |
| 1500 | return res; |
| 1501 | } |
| 1502 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1503 | TSAN_INTERCEPTOR(int, unlink, char *path) { |
| 1504 | SCOPED_TSAN_INTERCEPTOR(unlink, path); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1505 | Release(thr, pc, File2addr(path)); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1506 | int res = REAL(unlink)(path); |
| 1507 | return res; |
| 1508 | } |
| 1509 | |
| 1510 | TSAN_INTERCEPTOR(void*, fopen, char *path, char *mode) { |
| 1511 | SCOPED_TSAN_INTERCEPTOR(fopen, path, mode); |
| 1512 | void *res = REAL(fopen)(path, mode); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1513 | Acquire(thr, pc, File2addr(path)); |
| 1514 | if (res) { |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1515 | int fd = fileno_unlocked(res); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1516 | if (fd >= 0) |
| 1517 | FdFileCreate(thr, pc, fd); |
| 1518 | } |
| 1519 | return res; |
| 1520 | } |
| 1521 | |
| 1522 | TSAN_INTERCEPTOR(void*, freopen, char *path, char *mode, void *stream) { |
| 1523 | SCOPED_TSAN_INTERCEPTOR(freopen, path, mode, stream); |
| 1524 | if (stream) { |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1525 | int fd = fileno_unlocked(stream); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1526 | if (fd >= 0) |
| 1527 | FdClose(thr, pc, fd); |
| 1528 | } |
| 1529 | void *res = REAL(freopen)(path, mode, stream); |
| 1530 | Acquire(thr, pc, File2addr(path)); |
| 1531 | if (res) { |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1532 | int fd = fileno_unlocked(res); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1533 | if (fd >= 0) |
| 1534 | FdFileCreate(thr, pc, fd); |
| 1535 | } |
| 1536 | return res; |
| 1537 | } |
| 1538 | |
| 1539 | TSAN_INTERCEPTOR(int, fclose, void *stream) { |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1540 | { |
| 1541 | SCOPED_TSAN_INTERCEPTOR(fclose, stream); |
| 1542 | if (stream) { |
| 1543 | int fd = fileno_unlocked(stream); |
| 1544 | if (fd >= 0) |
| 1545 | FdClose(thr, pc, fd); |
| 1546 | } |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1547 | } |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1548 | return REAL(fclose)(stream); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1549 | } |
| 1550 | |
| 1551 | TSAN_INTERCEPTOR(uptr, fread, void *ptr, uptr size, uptr nmemb, void *f) { |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1552 | { |
| 1553 | SCOPED_TSAN_INTERCEPTOR(fread, ptr, size, nmemb, f); |
| 1554 | MemoryAccessRange(thr, pc, (uptr)ptr, size * nmemb, true); |
| 1555 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1556 | return REAL(fread)(ptr, size, nmemb, f); |
| 1557 | } |
| 1558 | |
| 1559 | TSAN_INTERCEPTOR(uptr, fwrite, const void *p, uptr size, uptr nmemb, void *f) { |
Dmitry Vyukov | f17b382 | 2013-01-09 11:54:52 +0000 | [diff] [blame] | 1560 | { |
| 1561 | SCOPED_TSAN_INTERCEPTOR(fwrite, p, size, nmemb, f); |
| 1562 | MemoryAccessRange(thr, pc, (uptr)p, size * nmemb, false); |
| 1563 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1564 | return REAL(fwrite)(p, size, nmemb, f); |
| 1565 | } |
| 1566 | |
Dmitry Vyukov | 0ebfc6f | 2013-03-20 14:01:10 +0000 | [diff] [blame] | 1567 | TSAN_INTERCEPTOR(int, fflush, void *stream) { |
| 1568 | SCOPED_TSAN_INTERCEPTOR(fflush, stream); |
| 1569 | return REAL(fflush)(stream); |
| 1570 | } |
| 1571 | |
Dmitry Vyukov | 5043f05 | 2013-03-21 12:50:43 +0000 | [diff] [blame] | 1572 | TSAN_INTERCEPTOR(void, abort, int fake) { |
| 1573 | SCOPED_TSAN_INTERCEPTOR(abort, fake); |
| 1574 | REAL(fflush)(0); |
| 1575 | REAL(abort)(fake); |
| 1576 | } |
| 1577 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1578 | TSAN_INTERCEPTOR(int, puts, const char *s) { |
| 1579 | SCOPED_TSAN_INTERCEPTOR(puts, s); |
Dmitry Vyukov | d51a1a1 | 2012-06-27 21:00:23 +0000 | [diff] [blame] | 1580 | MemoryAccessRange(thr, pc, (uptr)s, internal_strlen(s), false); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1581 | return REAL(puts)(s); |
| 1582 | } |
| 1583 | |
| 1584 | TSAN_INTERCEPTOR(int, rmdir, char *path) { |
| 1585 | SCOPED_TSAN_INTERCEPTOR(rmdir, path); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1586 | Release(thr, pc, Dir2addr(path)); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1587 | int res = REAL(rmdir)(path); |
| 1588 | return res; |
| 1589 | } |
| 1590 | |
| 1591 | TSAN_INTERCEPTOR(void*, opendir, char *path) { |
| 1592 | SCOPED_TSAN_INTERCEPTOR(opendir, path); |
| 1593 | void *res = REAL(opendir)(path); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 1594 | if (res != 0) |
| 1595 | Acquire(thr, pc, Dir2addr(path)); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1596 | return res; |
| 1597 | } |
| 1598 | |
| 1599 | TSAN_INTERCEPTOR(int, epoll_ctl, int epfd, int op, int fd, void *ev) { |
| 1600 | SCOPED_TSAN_INTERCEPTOR(epoll_ctl, epfd, op, fd, ev); |
Dmitry Vyukov | 29cec48 | 2013-10-11 13:33:22 +0000 | [diff] [blame] | 1601 | if (epfd >= 0) |
| 1602 | FdAccess(thr, pc, epfd); |
| 1603 | if (epfd >= 0 && fd >= 0) |
Dmitry Vyukov | f5d4273 | 2013-01-10 12:28:58 +0000 | [diff] [blame] | 1604 | FdAccess(thr, pc, fd); |
Dmitry Vyukov | 29cec48 | 2013-10-11 13:33:22 +0000 | [diff] [blame] | 1605 | if (op == EPOLL_CTL_ADD && epfd >= 0) |
| 1606 | FdRelease(thr, pc, epfd); |
| 1607 | int res = REAL(epoll_ctl)(epfd, op, fd, ev); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1608 | return res; |
| 1609 | } |
| 1610 | |
| 1611 | TSAN_INTERCEPTOR(int, epoll_wait, int epfd, void *ev, int cnt, int timeout) { |
| 1612 | SCOPED_TSAN_INTERCEPTOR(epoll_wait, epfd, ev, cnt, timeout); |
Dmitry Vyukov | 29cec48 | 2013-10-11 13:33:22 +0000 | [diff] [blame] | 1613 | if (epfd >= 0) |
| 1614 | FdAccess(thr, pc, epfd); |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1615 | int res = BLOCK_REAL(epoll_wait)(epfd, ev, cnt, timeout); |
Dmitry Vyukov | 29cec48 | 2013-10-11 13:33:22 +0000 | [diff] [blame] | 1616 | if (res > 0 && epfd >= 0) |
Dmitry Vyukov | 3f4e6d9 | 2012-12-07 14:40:10 +0000 | [diff] [blame] | 1617 | FdAcquire(thr, pc, epfd); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1618 | return res; |
| 1619 | } |
| 1620 | |
Timur Iskhodzhanov | b157c67 | 2013-03-28 21:16:09 +0000 | [diff] [blame] | 1621 | void ALWAYS_INLINE rtl_generic_sighandler(bool sigact, int sig, |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1622 | my_siginfo_t *info, void *ctx) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1623 | ThreadState *thr = cur_thread(); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1624 | SignalContext *sctx = SigCtx(thr); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1625 | // Don't mess with synchronous signals. |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 1626 | if (sig == SIGSEGV || sig == SIGBUS || sig == SIGILL || |
Dmitry Vyukov | 158ca52 | 2013-07-18 13:14:11 +0000 | [diff] [blame] | 1627 | sig == SIGABRT || sig == SIGFPE || sig == SIGPIPE || sig == SIGSYS || |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1628 | // If we are sending signal to ourselves, we must process it now. |
| 1629 | (sctx && sig == sctx->int_signal_send) || |
Dmitry Vyukov | 0bf04ea | 2012-11-21 11:12:33 +0000 | [diff] [blame] | 1630 | // If we are in blocking function, we can safely process it now |
| 1631 | // (but check if we are in a recursive interceptor, |
| 1632 | // i.e. pthread_join()->munmap()). |
Dmitry Vyukov | 80d46a2 | 2012-11-22 13:53:54 +0000 | [diff] [blame] | 1633 | (sctx && sctx->in_blocking_func == 1 && thr->in_rtl == 1)) { |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1634 | int in_rtl = thr->in_rtl; |
| 1635 | thr->in_rtl = 0; |
| 1636 | CHECK_EQ(thr->in_signal_handler, false); |
| 1637 | thr->in_signal_handler = true; |
| 1638 | if (sigact) |
| 1639 | sigactions[sig].sa_sigaction(sig, info, ctx); |
| 1640 | else |
| 1641 | sigactions[sig].sa_handler(sig); |
| 1642 | CHECK_EQ(thr->in_signal_handler, true); |
| 1643 | thr->in_signal_handler = false; |
| 1644 | thr->in_rtl = in_rtl; |
| 1645 | return; |
| 1646 | } |
| 1647 | |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 1648 | if (sctx == 0) |
| 1649 | return; |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1650 | SignalDesc *signal = &sctx->pending_signals[sig]; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1651 | if (signal->armed == false) { |
| 1652 | signal->armed = true; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1653 | signal->sigaction = sigact; |
| 1654 | if (info) |
Dmitry Vyukov | 6e48155 | 2012-06-29 15:26:55 +0000 | [diff] [blame] | 1655 | internal_memcpy(&signal->siginfo, info, sizeof(*info)); |
Dmitry Vyukov | a5562db | 2012-06-27 17:35:35 +0000 | [diff] [blame] | 1656 | if (ctx) |
Dmitry Vyukov | 6e48155 | 2012-06-29 15:26:55 +0000 | [diff] [blame] | 1657 | internal_memcpy(&signal->ctx, ctx, sizeof(signal->ctx)); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1658 | sctx->pending_signal_count++; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1659 | } |
| 1660 | } |
| 1661 | |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1662 | static void rtl_sighandler(int sig) { |
| 1663 | rtl_generic_sighandler(false, sig, 0, 0); |
| 1664 | } |
| 1665 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1666 | static void rtl_sigaction(int sig, my_siginfo_t *info, void *ctx) { |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1667 | rtl_generic_sighandler(true, sig, info, ctx); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1668 | } |
| 1669 | |
| 1670 | TSAN_INTERCEPTOR(int, sigaction, int sig, sigaction_t *act, sigaction_t *old) { |
| 1671 | SCOPED_TSAN_INTERCEPTOR(sigaction, sig, act, old); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1672 | if (old) |
Dmitry Vyukov | 6e48155 | 2012-06-29 15:26:55 +0000 | [diff] [blame] | 1673 | internal_memcpy(old, &sigactions[sig], sizeof(*old)); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1674 | if (act == 0) |
| 1675 | return 0; |
Dmitry Vyukov | 6e48155 | 2012-06-29 15:26:55 +0000 | [diff] [blame] | 1676 | internal_memcpy(&sigactions[sig], act, sizeof(*act)); |
| 1677 | sigaction_t newact; |
| 1678 | internal_memcpy(&newact, act, sizeof(newact)); |
Evgeniy Stepanov | 9a949a8 | 2013-09-25 14:47:43 +0000 | [diff] [blame] | 1679 | REAL(sigfillset)(&newact.sa_mask); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1680 | if (act->sa_handler != SIG_IGN && act->sa_handler != SIG_DFL) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1681 | if (newact.sa_flags & SA_SIGINFO) |
| 1682 | newact.sa_sigaction = rtl_sigaction; |
| 1683 | else |
| 1684 | newact.sa_handler = rtl_sighandler; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1685 | } |
| 1686 | int res = REAL(sigaction)(sig, &newact, 0); |
| 1687 | return res; |
| 1688 | } |
| 1689 | |
| 1690 | TSAN_INTERCEPTOR(sighandler_t, signal, int sig, sighandler_t h) { |
Alexey Samsonov | 2135d8a | 2012-09-13 11:54:41 +0000 | [diff] [blame] | 1691 | sigaction_t act; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1692 | act.sa_handler = h; |
Alexey Samsonov | 88207ab | 2012-06-15 12:24:07 +0000 | [diff] [blame] | 1693 | REAL(memset)(&act.sa_mask, -1, sizeof(act.sa_mask)); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1694 | act.sa_flags = 0; |
Alexey Samsonov | 2135d8a | 2012-09-13 11:54:41 +0000 | [diff] [blame] | 1695 | sigaction_t old; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1696 | int res = sigaction(sig, &act, &old); |
| 1697 | if (res) |
| 1698 | return SIG_ERR; |
| 1699 | return old.sa_handler; |
| 1700 | } |
| 1701 | |
Evgeniy Stepanov | 9a949a8 | 2013-09-25 14:47:43 +0000 | [diff] [blame] | 1702 | TSAN_INTERCEPTOR(int, sigsuspend, const __sanitizer_sigset_t *mask) { |
Dmitry Vyukov | fbeab51 | 2013-07-16 11:28:04 +0000 | [diff] [blame] | 1703 | SCOPED_TSAN_INTERCEPTOR(sigsuspend, mask); |
| 1704 | return REAL(sigsuspend)(mask); |
| 1705 | } |
| 1706 | |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1707 | TSAN_INTERCEPTOR(int, raise, int sig) { |
| 1708 | SCOPED_TSAN_INTERCEPTOR(raise, sig); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1709 | SignalContext *sctx = SigCtx(thr); |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 1710 | CHECK_NE(sctx, 0); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1711 | int prev = sctx->int_signal_send; |
| 1712 | sctx->int_signal_send = sig; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1713 | int res = REAL(raise)(sig); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1714 | CHECK_EQ(sctx->int_signal_send, sig); |
| 1715 | sctx->int_signal_send = prev; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1716 | return res; |
| 1717 | } |
| 1718 | |
| 1719 | TSAN_INTERCEPTOR(int, kill, int pid, int sig) { |
| 1720 | SCOPED_TSAN_INTERCEPTOR(kill, pid, sig); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1721 | SignalContext *sctx = SigCtx(thr); |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 1722 | CHECK_NE(sctx, 0); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1723 | int prev = sctx->int_signal_send; |
Peter Collingbourne | 0b694fc | 2013-05-17 16:56:53 +0000 | [diff] [blame] | 1724 | if (pid == (int)internal_getpid()) { |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1725 | sctx->int_signal_send = sig; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1726 | } |
| 1727 | int res = REAL(kill)(pid, sig); |
Peter Collingbourne | 0b694fc | 2013-05-17 16:56:53 +0000 | [diff] [blame] | 1728 | if (pid == (int)internal_getpid()) { |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1729 | CHECK_EQ(sctx->int_signal_send, sig); |
| 1730 | sctx->int_signal_send = prev; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1731 | } |
| 1732 | return res; |
| 1733 | } |
| 1734 | |
| 1735 | TSAN_INTERCEPTOR(int, pthread_kill, void *tid, int sig) { |
| 1736 | SCOPED_TSAN_INTERCEPTOR(pthread_kill, tid, sig); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1737 | SignalContext *sctx = SigCtx(thr); |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 1738 | CHECK_NE(sctx, 0); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1739 | int prev = sctx->int_signal_send; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1740 | if (tid == pthread_self()) { |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1741 | sctx->int_signal_send = sig; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1742 | } |
| 1743 | int res = REAL(pthread_kill)(tid, sig); |
| 1744 | if (tid == pthread_self()) { |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1745 | CHECK_EQ(sctx->int_signal_send, sig); |
| 1746 | sctx->int_signal_send = prev; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1747 | } |
| 1748 | return res; |
| 1749 | } |
| 1750 | |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1751 | TSAN_INTERCEPTOR(int, gettimeofday, void *tv, void *tz) { |
| 1752 | SCOPED_TSAN_INTERCEPTOR(gettimeofday, tv, tz); |
| 1753 | // It's intercepted merely to process pending signals. |
| 1754 | return REAL(gettimeofday)(tv, tz); |
| 1755 | } |
| 1756 | |
Dmitry Vyukov | cf878fd | 2013-08-13 16:51:27 +0000 | [diff] [blame] | 1757 | TSAN_INTERCEPTOR(int, getaddrinfo, void *node, void *service, |
| 1758 | void *hints, void *rv) { |
| 1759 | SCOPED_TSAN_INTERCEPTOR(getaddrinfo, node, service, hints, rv); |
| 1760 | // We miss atomic synchronization in getaddrinfo, |
| 1761 | // and can report false race between malloc and free |
| 1762 | // inside of getaddrinfo. So ignore memory accesses. |
Dmitry Vyukov | 652f78a | 2013-09-19 04:39:04 +0000 | [diff] [blame] | 1763 | ThreadIgnoreBegin(thr); |
Dmitry Vyukov | 9880219 | 2013-09-20 02:01:38 +0000 | [diff] [blame] | 1764 | // getaddrinfo calls fopen, which can be intercepted by user. |
| 1765 | thr->in_rtl--; |
| 1766 | CHECK_EQ(thr->in_rtl, 0); |
Dmitry Vyukov | cf878fd | 2013-08-13 16:51:27 +0000 | [diff] [blame] | 1767 | int res = REAL(getaddrinfo)(node, service, hints, rv); |
Dmitry Vyukov | 9880219 | 2013-09-20 02:01:38 +0000 | [diff] [blame] | 1768 | thr->in_rtl++; |
Dmitry Vyukov | 652f78a | 2013-09-19 04:39:04 +0000 | [diff] [blame] | 1769 | ThreadIgnoreEnd(thr); |
Dmitry Vyukov | cf878fd | 2013-08-13 16:51:27 +0000 | [diff] [blame] | 1770 | return res; |
| 1771 | } |
| 1772 | |
Dmitry Vyukov | 92733f9 | 2012-11-30 06:50:15 +0000 | [diff] [blame] | 1773 | // Linux kernel has a bug that leads to kernel deadlock if a process |
| 1774 | // maps TBs of memory and then calls mlock(). |
| 1775 | static void MlockIsUnsupported() { |
| 1776 | static atomic_uint8_t printed; |
| 1777 | if (atomic_exchange(&printed, 1, memory_order_relaxed)) |
| 1778 | return; |
Alexey Samsonov | c8c312a | 2013-07-01 08:25:29 +0000 | [diff] [blame] | 1779 | if (flags()->verbosity > 0) |
| 1780 | Printf("INFO: ThreadSanitizer ignores mlock/mlockall/munlock/munlockall\n"); |
Dmitry Vyukov | 92733f9 | 2012-11-30 06:50:15 +0000 | [diff] [blame] | 1781 | } |
| 1782 | |
| 1783 | TSAN_INTERCEPTOR(int, mlock, const void *addr, uptr len) { |
| 1784 | MlockIsUnsupported(); |
| 1785 | return 0; |
| 1786 | } |
| 1787 | |
| 1788 | TSAN_INTERCEPTOR(int, munlock, const void *addr, uptr len) { |
| 1789 | MlockIsUnsupported(); |
| 1790 | return 0; |
| 1791 | } |
| 1792 | |
| 1793 | TSAN_INTERCEPTOR(int, mlockall, int flags) { |
| 1794 | MlockIsUnsupported(); |
| 1795 | return 0; |
| 1796 | } |
| 1797 | |
| 1798 | TSAN_INTERCEPTOR(int, munlockall, void) { |
| 1799 | MlockIsUnsupported(); |
| 1800 | return 0; |
| 1801 | } |
| 1802 | |
Dmitry Vyukov | b75c67b | 2012-12-19 06:59:45 +0000 | [diff] [blame] | 1803 | TSAN_INTERCEPTOR(int, fork, int fake) { |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 1804 | SCOPED_INTERCEPTOR_RAW(fork, fake); |
Dmitry Vyukov | b75c67b | 2012-12-19 06:59:45 +0000 | [diff] [blame] | 1805 | int pid = REAL(fork)(fake); |
Dmitry Vyukov | 4554b7a | 2012-12-18 14:44:44 +0000 | [diff] [blame] | 1806 | if (pid == 0) { |
| 1807 | // child |
| 1808 | FdOnFork(thr, pc); |
| 1809 | } else if (pid > 0) { |
| 1810 | // parent |
| 1811 | } |
| 1812 | return pid; |
| 1813 | } |
| 1814 | |
Dmitry Vyukov | 14dd980 | 2013-10-03 15:22:29 +0000 | [diff] [blame] | 1815 | static int OnExit(ThreadState *thr) { |
| 1816 | int status = Finalize(thr); |
| 1817 | REAL(fflush)(0); |
| 1818 | return status; |
| 1819 | } |
| 1820 | |
Evgeniy Stepanov | 996c4f2 | 2013-01-18 11:17:23 +0000 | [diff] [blame] | 1821 | struct TsanInterceptorContext { |
| 1822 | ThreadState *thr; |
| 1823 | const uptr caller_pc; |
| 1824 | const uptr pc; |
| 1825 | }; |
| 1826 | |
Dmitry Vyukov | edd2821 | 2013-04-24 11:06:05 +0000 | [diff] [blame] | 1827 | #include "sanitizer_common/sanitizer_platform_interceptors.h" |
| 1828 | // Causes interceptor recursion (getpwuid_r() calls fopen()) |
| 1829 | #undef SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS |
| 1830 | #undef SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS |
Dmitry Vyukov | 917f62e | 2013-06-10 11:35:08 +0000 | [diff] [blame] | 1831 | // Causes interceptor recursion (getaddrinfo() and fopen()) |
| 1832 | #undef SANITIZER_INTERCEPT_GETADDRINFO |
Dmitry Vyukov | 48016bc | 2013-07-17 07:10:47 +0000 | [diff] [blame] | 1833 | #undef SANITIZER_INTERCEPT_GETNAMEINFO |
Dmitry Vyukov | edd2821 | 2013-04-24 11:06:05 +0000 | [diff] [blame] | 1834 | // Causes interceptor recursion (glob64() calls lstat64()) |
| 1835 | #undef SANITIZER_INTERCEPT_GLOB |
| 1836 | |
Evgeniy Stepanov | 3fa122e | 2013-07-09 12:07:59 +0000 | [diff] [blame] | 1837 | #define COMMON_INTERCEPTOR_UNPOISON_PARAM(ctx, count) \ |
| 1838 | do { \ |
| 1839 | } while (false) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1840 | |
Evgeniy Stepanov | 3fa122e | 2013-07-09 12:07:59 +0000 | [diff] [blame] | 1841 | #define COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, size) \ |
| 1842 | MemoryAccessRange(((TsanInterceptorContext *)ctx)->thr, \ |
| 1843 | ((TsanInterceptorContext *)ctx)->pc, (uptr)ptr, size, \ |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1844 | true) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1845 | |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1846 | #define COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, size) \ |
| 1847 | MemoryAccessRange(((TsanInterceptorContext *) ctx)->thr, \ |
| 1848 | ((TsanInterceptorContext *) ctx)->pc, (uptr) ptr, size, \ |
| 1849 | false) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1850 | |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1851 | #define COMMON_INTERCEPTOR_ENTER(ctx, func, ...) \ |
| 1852 | SCOPED_TSAN_INTERCEPTOR(func, __VA_ARGS__); \ |
| 1853 | TsanInterceptorContext _ctx = {thr, caller_pc, pc}; \ |
| 1854 | ctx = (void *)&_ctx; \ |
| 1855 | (void) ctx; |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1856 | |
Evgeniy Stepanov | 996c4f2 | 2013-01-18 11:17:23 +0000 | [diff] [blame] | 1857 | #define COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd) \ |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1858 | FdAcquire(((TsanInterceptorContext *) ctx)->thr, pc, fd) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1859 | |
Evgeniy Stepanov | 996c4f2 | 2013-01-18 11:17:23 +0000 | [diff] [blame] | 1860 | #define COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd) \ |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1861 | FdRelease(((TsanInterceptorContext *) ctx)->thr, pc, fd) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1862 | |
Dmitry Vyukov | 67f5544 | 2013-10-11 14:13:11 +0000 | [diff] [blame] | 1863 | #define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) \ |
| 1864 | FdAccess(((TsanInterceptorContext *) ctx)->thr, pc, fd) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1865 | |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1866 | #define COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, newfd) \ |
| 1867 | FdSocketAccept(((TsanInterceptorContext *) ctx)->thr, pc, fd, newfd) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1868 | |
Evgeniy Stepanov | 996c4f2 | 2013-01-18 11:17:23 +0000 | [diff] [blame] | 1869 | #define COMMON_INTERCEPTOR_SET_THREAD_NAME(ctx, name) \ |
Evgeniy Stepanov | 9d1525e | 2013-05-29 09:09:58 +0000 | [diff] [blame] | 1870 | ThreadSetName(((TsanInterceptorContext *) ctx)->thr, name) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1871 | |
| 1872 | #define COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name) \ |
| 1873 | CTX()->thread_registry->SetThreadNameByUserId(thread, name) |
| 1874 | |
Evgeniy Stepanov | e18e3f0 | 2013-08-12 13:19:53 +0000 | [diff] [blame] | 1875 | #define COMMON_INTERCEPTOR_BLOCK_REAL(name) BLOCK_REAL(name) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1876 | |
Dmitry Vyukov | 14dd980 | 2013-10-03 15:22:29 +0000 | [diff] [blame] | 1877 | #define COMMON_INTERCEPTOR_ON_EXIT(ctx) \ |
| 1878 | OnExit(((TsanInterceptorContext *) ctx)->thr) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1879 | |
Alexey Samsonov | 5e2d377 | 2013-10-16 08:20:31 +0000 | [diff] [blame] | 1880 | #define COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m) \ |
| 1881 | MutexLock(((TsanInterceptorContext *)ctx)->thr, \ |
| 1882 | ((TsanInterceptorContext *)ctx)->pc, (uptr)m) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1883 | |
Alexey Samsonov | 5e2d377 | 2013-10-16 08:20:31 +0000 | [diff] [blame] | 1884 | #define COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m) \ |
| 1885 | MutexUnlock(((TsanInterceptorContext *)ctx)->thr, \ |
| 1886 | ((TsanInterceptorContext *)ctx)->pc, (uptr)m) |
Dmitry Vyukov | 5cf2c46 | 2013-10-29 10:30:39 +0000 | [diff] [blame^] | 1887 | |
Evgeniy Stepanov | 4f32c0b | 2013-01-18 13:01:18 +0000 | [diff] [blame] | 1888 | #include "sanitizer_common/sanitizer_common_interceptors.inc" |
Kostya Serebryany | c803319 | 2013-01-17 13:09:00 +0000 | [diff] [blame] | 1889 | |
Dmitry Vyukov | 6c21e11 | 2013-09-21 20:59:04 +0000 | [diff] [blame] | 1890 | #define TSAN_SYSCALL() \ |
| 1891 | ThreadState *thr = cur_thread(); \ |
| 1892 | ScopedSyscall scoped_syscall(thr) \ |
| 1893 | /**/ |
| 1894 | |
| 1895 | struct ScopedSyscall { |
| 1896 | ThreadState *thr; |
| 1897 | |
| 1898 | explicit ScopedSyscall(ThreadState *thr) |
| 1899 | : thr(thr) { |
| 1900 | if (thr->in_rtl == 0) |
| 1901 | Initialize(thr); |
| 1902 | thr->in_rtl++; |
| 1903 | } |
| 1904 | |
| 1905 | ~ScopedSyscall() { |
| 1906 | thr->in_rtl--; |
| 1907 | if (thr->in_rtl == 0) |
| 1908 | ProcessPendingSignals(thr); |
| 1909 | } |
| 1910 | }; |
| 1911 | |
Dmitry Vyukov | eb0be61 | 2013-09-20 06:54:14 +0000 | [diff] [blame] | 1912 | static void syscall_access_range(uptr pc, uptr p, uptr s, bool write) { |
Dmitry Vyukov | 6c21e11 | 2013-09-21 20:59:04 +0000 | [diff] [blame] | 1913 | TSAN_SYSCALL(); |
Dmitry Vyukov | eb0be61 | 2013-09-20 06:54:14 +0000 | [diff] [blame] | 1914 | MemoryAccessRange(thr, pc, p, s, write); |
Dmitry Vyukov | eb0be61 | 2013-09-20 06:54:14 +0000 | [diff] [blame] | 1915 | } |
| 1916 | |
Dmitry Vyukov | b47d41f | 2013-09-21 03:47:35 +0000 | [diff] [blame] | 1917 | static void syscall_fd_close(uptr pc, int fd) { |
Dmitry Vyukov | 6c21e11 | 2013-09-21 20:59:04 +0000 | [diff] [blame] | 1918 | TSAN_SYSCALL(); |
| 1919 | if (fd >= 0) |
| 1920 | FdClose(thr, pc, fd); |
| 1921 | } |
| 1922 | |
| 1923 | static void syscall_pre_fork(uptr pc) { |
| 1924 | TSAN_SYSCALL(); |
| 1925 | } |
| 1926 | |
| 1927 | static void syscall_post_fork(uptr pc, int res) { |
| 1928 | TSAN_SYSCALL(); |
| 1929 | if (res == 0) { |
| 1930 | // child |
| 1931 | FdOnFork(thr, pc); |
| 1932 | } else if (res > 0) { |
| 1933 | // parent |
| 1934 | } |
Dmitry Vyukov | b47d41f | 2013-09-21 03:47:35 +0000 | [diff] [blame] | 1935 | } |
| 1936 | |
Alexey Samsonov | c09250f | 2013-09-19 07:59:18 +0000 | [diff] [blame] | 1937 | #define COMMON_SYSCALL_PRE_READ_RANGE(p, s) \ |
Dmitry Vyukov | eb0be61 | 2013-09-20 06:54:14 +0000 | [diff] [blame] | 1938 | syscall_access_range(GET_CALLER_PC(), (uptr)(p), (uptr)(s), false) |
Alexey Samsonov | c09250f | 2013-09-19 07:59:18 +0000 | [diff] [blame] | 1939 | #define COMMON_SYSCALL_PRE_WRITE_RANGE(p, s) \ |
Dmitry Vyukov | eb0be61 | 2013-09-20 06:54:14 +0000 | [diff] [blame] | 1940 | syscall_access_range(GET_CALLER_PC(), (uptr)(p), (uptr)(s), true) |
Alexey Samsonov | c09250f | 2013-09-19 07:59:18 +0000 | [diff] [blame] | 1941 | #define COMMON_SYSCALL_POST_READ_RANGE(p, s) \ |
| 1942 | do { } while (false) |
| 1943 | #define COMMON_SYSCALL_POST_WRITE_RANGE(p, s) \ |
| 1944 | do { } while (false) |
Dmitry Vyukov | b47d41f | 2013-09-21 03:47:35 +0000 | [diff] [blame] | 1945 | #define COMMON_SYSCALL_FD_CLOSE(fd) \ |
| 1946 | syscall_fd_close(GET_CALLER_PC(), fd) |
Dmitry Vyukov | 6c21e11 | 2013-09-21 20:59:04 +0000 | [diff] [blame] | 1947 | #define COMMON_SYSCALL_PRE_FORK() \ |
| 1948 | syscall_pre_fork(GET_CALLER_PC()) |
| 1949 | #define COMMON_SYSCALL_POST_FORK(res) \ |
| 1950 | syscall_post_fork(GET_CALLER_PC(), res) |
Evgeniy Stepanov | 881b677 | 2013-04-12 14:57:03 +0000 | [diff] [blame] | 1951 | #include "sanitizer_common/sanitizer_common_syscalls.inc" |
| 1952 | |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1953 | namespace __tsan { |
| 1954 | |
Dmitry Vyukov | c78140f | 2013-10-03 14:00:46 +0000 | [diff] [blame] | 1955 | static void finalize(void *arg) { |
Dmitry Vyukov | 14dd980 | 2013-10-03 15:22:29 +0000 | [diff] [blame] | 1956 | ThreadState *thr = cur_thread(); |
Dmitry Vyukov | c78140f | 2013-10-03 14:00:46 +0000 | [diff] [blame] | 1957 | uptr pc = 0; |
| 1958 | atexit_ctx->exit(thr, pc); |
| 1959 | int status = Finalize(thr); |
| 1960 | REAL(fflush)(0); |
| 1961 | if (status) |
| 1962 | REAL(_exit)(status); |
| 1963 | } |
| 1964 | |
Dmitry Vyukov | ee8ee24 | 2012-11-15 17:40:49 +0000 | [diff] [blame] | 1965 | void ProcessPendingSignals(ThreadState *thr) { |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1966 | CHECK_EQ(thr->in_rtl, 0); |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1967 | SignalContext *sctx = SigCtx(thr); |
Dmitry Vyukov | 1fc03d5 | 2012-06-28 18:07:46 +0000 | [diff] [blame] | 1968 | if (sctx == 0 || sctx->pending_signal_count == 0 || thr->in_signal_handler) |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1969 | return; |
Dmitry Vyukov | 158c6ac | 2012-10-05 15:51:32 +0000 | [diff] [blame] | 1970 | Context *ctx = CTX(); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1971 | thr->in_signal_handler = true; |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1972 | sctx->pending_signal_count = 0; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1973 | // These are too big for stack. |
Evgeniy Stepanov | 9a949a8 | 2013-09-25 14:47:43 +0000 | [diff] [blame] | 1974 | static THREADLOCAL __sanitizer_sigset_t emptyset, oldset; |
| 1975 | REAL(sigfillset)(&emptyset); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1976 | pthread_sigmask(SIG_SETMASK, &emptyset, &oldset); |
| 1977 | for (int sig = 0; sig < kSigCount; sig++) { |
Dmitry Vyukov | e963666 | 2012-06-27 16:05:06 +0000 | [diff] [blame] | 1978 | SignalDesc *signal = &sctx->pending_signals[sig]; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 1979 | if (signal->armed) { |
| 1980 | signal->armed = false; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1981 | if (sigactions[sig].sa_handler != SIG_DFL |
| 1982 | && sigactions[sig].sa_handler != SIG_IGN) { |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 1983 | // Insure that the handler does not spoil errno. |
| 1984 | const int saved_errno = errno; |
| 1985 | errno = 0; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1986 | if (signal->sigaction) |
Dmitry Vyukov | a5562db | 2012-06-27 17:35:35 +0000 | [diff] [blame] | 1987 | sigactions[sig].sa_sigaction(sig, &signal->siginfo, &signal->ctx); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 1988 | else |
| 1989 | sigactions[sig].sa_handler(sig); |
Dmitry Vyukov | 8a32677 | 2012-11-07 16:14:12 +0000 | [diff] [blame] | 1990 | if (flags()->report_bugs && errno != 0) { |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 1991 | ScopedInRtl in_rtl; |
Alexey Samsonov | 4f0ea39 | 2012-09-24 13:19:47 +0000 | [diff] [blame] | 1992 | __tsan::StackTrace stack; |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 1993 | uptr pc = signal->sigaction ? |
| 1994 | (uptr)sigactions[sig].sa_sigaction : |
| 1995 | (uptr)sigactions[sig].sa_handler; |
Dmitry Vyukov | e7718bc | 2013-06-17 19:57:03 +0000 | [diff] [blame] | 1996 | pc += 1; // return address is expected, OutputReport() will undo this |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 1997 | stack.Init(&pc, 1); |
Alexey Samsonov | 2bbd8be | 2013-03-15 13:48:44 +0000 | [diff] [blame] | 1998 | ThreadRegistryLock l(ctx->thread_registry); |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 1999 | ScopedReport rep(ReportTypeErrnoInSignal); |
Dmitry Vyukov | 158c6ac | 2012-10-05 15:51:32 +0000 | [diff] [blame] | 2000 | if (!IsFiredSuppression(ctx, rep, stack)) { |
| 2001 | rep.AddStack(&stack); |
| 2002 | OutputReport(ctx, rep, rep.GetReport()->stacks[0]); |
| 2003 | } |
Dmitry Vyukov | 7a72b4a | 2012-06-27 13:54:46 +0000 | [diff] [blame] | 2004 | } |
| 2005 | errno = saved_errno; |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 2006 | } |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2007 | } |
| 2008 | } |
| 2009 | pthread_sigmask(SIG_SETMASK, &oldset, 0); |
| 2010 | CHECK_EQ(thr->in_signal_handler, true); |
| 2011 | thr->in_signal_handler = false; |
| 2012 | } |
| 2013 | |
Dmitry Vyukov | 91ac008 | 2012-12-04 07:28:25 +0000 | [diff] [blame] | 2014 | static void unreachable() { |
| 2015 | Printf("FATAL: ThreadSanitizer: unreachable called\n"); |
| 2016 | Die(); |
| 2017 | } |
| 2018 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2019 | void InitializeInterceptors() { |
| 2020 | CHECK_GT(cur_thread()->in_rtl, 0); |
| 2021 | |
| 2022 | // We need to setup it early, because functions like dlsym() can call it. |
Dmitry Vyukov | 065c4ac | 2012-06-29 15:19:14 +0000 | [diff] [blame] | 2023 | REAL(memset) = internal_memset; |
| 2024 | REAL(memcpy) = internal_memcpy; |
| 2025 | REAL(memcmp) = internal_memcmp; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2026 | |
Dmitry Vyukov | 8e1c769 | 2013-03-19 12:24:19 +0000 | [diff] [blame] | 2027 | // Instruct libc malloc to consume less memory. |
| 2028 | mallopt(1, 0); // M_MXFAST |
| 2029 | mallopt(-3, 32*1024); // M_MMAP_THRESHOLD |
| 2030 | |
Kostya Serebryany | c803319 | 2013-01-17 13:09:00 +0000 | [diff] [blame] | 2031 | SANITIZER_COMMON_INTERCEPTORS_INIT; |
| 2032 | |
Dmitry Vyukov | 8b30c25 | 2013-03-25 10:10:44 +0000 | [diff] [blame] | 2033 | TSAN_INTERCEPT(setjmp); |
| 2034 | TSAN_INTERCEPT(_setjmp); |
| 2035 | TSAN_INTERCEPT(sigsetjmp); |
| 2036 | TSAN_INTERCEPT(__sigsetjmp); |
Dmitry Vyukov | f037f56 | 2012-05-31 18:03:59 +0000 | [diff] [blame] | 2037 | TSAN_INTERCEPT(longjmp); |
| 2038 | TSAN_INTERCEPT(siglongjmp); |
| 2039 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2040 | TSAN_INTERCEPT(malloc); |
Dmitry Vyukov | 07ba8ef | 2012-11-30 17:27:58 +0000 | [diff] [blame] | 2041 | TSAN_INTERCEPT(__libc_memalign); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2042 | TSAN_INTERCEPT(calloc); |
| 2043 | TSAN_INTERCEPT(realloc); |
| 2044 | TSAN_INTERCEPT(free); |
| 2045 | TSAN_INTERCEPT(cfree); |
| 2046 | TSAN_INTERCEPT(mmap); |
| 2047 | TSAN_INTERCEPT(mmap64); |
| 2048 | TSAN_INTERCEPT(munmap); |
| 2049 | TSAN_INTERCEPT(memalign); |
| 2050 | TSAN_INTERCEPT(valloc); |
| 2051 | TSAN_INTERCEPT(pvalloc); |
| 2052 | TSAN_INTERCEPT(posix_memalign); |
| 2053 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2054 | TSAN_INTERCEPT(strlen); |
| 2055 | TSAN_INTERCEPT(memset); |
| 2056 | TSAN_INTERCEPT(memcpy); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2057 | TSAN_INTERCEPT(memchr); |
| 2058 | TSAN_INTERCEPT(memrchr); |
| 2059 | TSAN_INTERCEPT(memmove); |
| 2060 | TSAN_INTERCEPT(memcmp); |
| 2061 | TSAN_INTERCEPT(strchr); |
| 2062 | TSAN_INTERCEPT(strchrnul); |
| 2063 | TSAN_INTERCEPT(strrchr); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2064 | TSAN_INTERCEPT(strcpy); // NOLINT |
| 2065 | TSAN_INTERCEPT(strncpy); |
| 2066 | TSAN_INTERCEPT(strstr); |
Dmitry Vyukov | 39fa68e | 2013-09-21 23:44:19 +0000 | [diff] [blame] | 2067 | TSAN_INTERCEPT(strdup); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2068 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2069 | TSAN_INTERCEPT(pthread_create); |
| 2070 | TSAN_INTERCEPT(pthread_join); |
| 2071 | TSAN_INTERCEPT(pthread_detach); |
| 2072 | |
| 2073 | TSAN_INTERCEPT(pthread_mutex_init); |
| 2074 | TSAN_INTERCEPT(pthread_mutex_destroy); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2075 | TSAN_INTERCEPT(pthread_mutex_trylock); |
| 2076 | TSAN_INTERCEPT(pthread_mutex_timedlock); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2077 | |
| 2078 | TSAN_INTERCEPT(pthread_spin_init); |
| 2079 | TSAN_INTERCEPT(pthread_spin_destroy); |
| 2080 | TSAN_INTERCEPT(pthread_spin_lock); |
| 2081 | TSAN_INTERCEPT(pthread_spin_trylock); |
| 2082 | TSAN_INTERCEPT(pthread_spin_unlock); |
| 2083 | |
| 2084 | TSAN_INTERCEPT(pthread_rwlock_init); |
| 2085 | TSAN_INTERCEPT(pthread_rwlock_destroy); |
| 2086 | TSAN_INTERCEPT(pthread_rwlock_rdlock); |
| 2087 | TSAN_INTERCEPT(pthread_rwlock_tryrdlock); |
| 2088 | TSAN_INTERCEPT(pthread_rwlock_timedrdlock); |
| 2089 | TSAN_INTERCEPT(pthread_rwlock_wrlock); |
| 2090 | TSAN_INTERCEPT(pthread_rwlock_trywrlock); |
| 2091 | TSAN_INTERCEPT(pthread_rwlock_timedwrlock); |
| 2092 | TSAN_INTERCEPT(pthread_rwlock_unlock); |
| 2093 | |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 2094 | INTERCEPT_FUNCTION_VER(pthread_cond_destroy, GLIBC_2.3.2); |
Dmitry Vyukov | fae2bff | 2013-09-19 23:44:51 +0000 | [diff] [blame] | 2095 | INTERCEPT_FUNCTION_VER(pthread_cond_timedwait, GLIBC_2.3.2); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2096 | |
| 2097 | TSAN_INTERCEPT(pthread_barrier_init); |
| 2098 | TSAN_INTERCEPT(pthread_barrier_destroy); |
| 2099 | TSAN_INTERCEPT(pthread_barrier_wait); |
| 2100 | |
| 2101 | TSAN_INTERCEPT(pthread_once); |
| 2102 | |
| 2103 | TSAN_INTERCEPT(sem_init); |
| 2104 | TSAN_INTERCEPT(sem_destroy); |
| 2105 | TSAN_INTERCEPT(sem_wait); |
| 2106 | TSAN_INTERCEPT(sem_trywait); |
| 2107 | TSAN_INTERCEPT(sem_timedwait); |
| 2108 | TSAN_INTERCEPT(sem_post); |
| 2109 | TSAN_INTERCEPT(sem_getvalue); |
| 2110 | |
Dmitry Vyukov | 61ba1b5 | 2013-01-29 09:23:09 +0000 | [diff] [blame] | 2111 | TSAN_INTERCEPT(stat); |
| 2112 | TSAN_INTERCEPT(__xstat); |
| 2113 | TSAN_INTERCEPT(stat64); |
| 2114 | TSAN_INTERCEPT(__xstat64); |
| 2115 | TSAN_INTERCEPT(lstat); |
| 2116 | TSAN_INTERCEPT(__lxstat); |
| 2117 | TSAN_INTERCEPT(lstat64); |
| 2118 | TSAN_INTERCEPT(__lxstat64); |
| 2119 | TSAN_INTERCEPT(fstat); |
| 2120 | TSAN_INTERCEPT(__fxstat); |
| 2121 | TSAN_INTERCEPT(fstat64); |
| 2122 | TSAN_INTERCEPT(__fxstat64); |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 2123 | TSAN_INTERCEPT(open); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 2124 | TSAN_INTERCEPT(open64); |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 2125 | TSAN_INTERCEPT(creat); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 2126 | TSAN_INTERCEPT(creat64); |
Dmitry Vyukov | ba3ae35 | 2012-12-07 18:30:40 +0000 | [diff] [blame] | 2127 | TSAN_INTERCEPT(dup); |
| 2128 | TSAN_INTERCEPT(dup2); |
| 2129 | TSAN_INTERCEPT(dup3); |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 2130 | TSAN_INTERCEPT(eventfd); |
Dmitry Vyukov | 45d4324 | 2012-12-18 12:35:31 +0000 | [diff] [blame] | 2131 | TSAN_INTERCEPT(signalfd); |
| 2132 | TSAN_INTERCEPT(inotify_init); |
| 2133 | TSAN_INTERCEPT(inotify_init1); |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 2134 | TSAN_INTERCEPT(socket); |
Dmitry Vyukov | 983518e | 2012-12-14 09:57:42 +0000 | [diff] [blame] | 2135 | TSAN_INTERCEPT(socketpair); |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 2136 | TSAN_INTERCEPT(connect); |
Dmitry Vyukov | 52c70e5 | 2013-02-04 08:06:32 +0000 | [diff] [blame] | 2137 | TSAN_INTERCEPT(bind); |
| 2138 | TSAN_INTERCEPT(listen); |
Dmitry Vyukov | 68230a1 | 2012-12-07 19:23:59 +0000 | [diff] [blame] | 2139 | TSAN_INTERCEPT(epoll_create); |
| 2140 | TSAN_INTERCEPT(epoll_create1); |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 2141 | TSAN_INTERCEPT(close); |
Dmitry Vyukov | 03f2248 | 2013-02-07 15:27:45 +0000 | [diff] [blame] | 2142 | TSAN_INTERCEPT(__close); |
| 2143 | TSAN_INTERCEPT(__res_iclose); |
Dmitry Vyukov | ddeb2c3 | 2012-12-07 15:32:56 +0000 | [diff] [blame] | 2144 | TSAN_INTERCEPT(pipe); |
| 2145 | TSAN_INTERCEPT(pipe2); |
| 2146 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2147 | TSAN_INTERCEPT(send); |
| 2148 | TSAN_INTERCEPT(sendmsg); |
| 2149 | TSAN_INTERCEPT(recv); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2150 | |
| 2151 | TSAN_INTERCEPT(unlink); |
| 2152 | TSAN_INTERCEPT(fopen); |
Dmitry Vyukov | c78839f | 2012-12-12 11:59:30 +0000 | [diff] [blame] | 2153 | TSAN_INTERCEPT(freopen); |
| 2154 | TSAN_INTERCEPT(fclose); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2155 | TSAN_INTERCEPT(fread); |
| 2156 | TSAN_INTERCEPT(fwrite); |
Dmitry Vyukov | 0ebfc6f | 2013-03-20 14:01:10 +0000 | [diff] [blame] | 2157 | TSAN_INTERCEPT(fflush); |
Dmitry Vyukov | 5043f05 | 2013-03-21 12:50:43 +0000 | [diff] [blame] | 2158 | TSAN_INTERCEPT(abort); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2159 | TSAN_INTERCEPT(puts); |
| 2160 | TSAN_INTERCEPT(rmdir); |
| 2161 | TSAN_INTERCEPT(opendir); |
| 2162 | |
| 2163 | TSAN_INTERCEPT(epoll_ctl); |
| 2164 | TSAN_INTERCEPT(epoll_wait); |
| 2165 | |
| 2166 | TSAN_INTERCEPT(sigaction); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 2167 | TSAN_INTERCEPT(signal); |
Dmitry Vyukov | fbeab51 | 2013-07-16 11:28:04 +0000 | [diff] [blame] | 2168 | TSAN_INTERCEPT(sigsuspend); |
Dmitry Vyukov | d91d067 | 2012-05-21 08:26:51 +0000 | [diff] [blame] | 2169 | TSAN_INTERCEPT(raise); |
| 2170 | TSAN_INTERCEPT(kill); |
| 2171 | TSAN_INTERCEPT(pthread_kill); |
Dmitry Vyukov | 8485311 | 2012-08-31 17:27:49 +0000 | [diff] [blame] | 2172 | TSAN_INTERCEPT(sleep); |
| 2173 | TSAN_INTERCEPT(usleep); |
| 2174 | TSAN_INTERCEPT(nanosleep); |
Dmitry Vyukov | aad173b | 2012-11-09 19:55:06 +0000 | [diff] [blame] | 2175 | TSAN_INTERCEPT(gettimeofday); |
Dmitry Vyukov | cf878fd | 2013-08-13 16:51:27 +0000 | [diff] [blame] | 2176 | TSAN_INTERCEPT(getaddrinfo); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2177 | |
Dmitry Vyukov | 92733f9 | 2012-11-30 06:50:15 +0000 | [diff] [blame] | 2178 | TSAN_INTERCEPT(mlock); |
| 2179 | TSAN_INTERCEPT(munlock); |
| 2180 | TSAN_INTERCEPT(mlockall); |
| 2181 | TSAN_INTERCEPT(munlockall); |
| 2182 | |
Dmitry Vyukov | 4554b7a | 2012-12-18 14:44:44 +0000 | [diff] [blame] | 2183 | TSAN_INTERCEPT(fork); |
Dmitry Vyukov | 4af0f21 | 2013-10-03 13:37:17 +0000 | [diff] [blame] | 2184 | TSAN_INTERCEPT(dlopen); |
| 2185 | TSAN_INTERCEPT(dlclose); |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 2186 | TSAN_INTERCEPT(on_exit); |
| 2187 | TSAN_INTERCEPT(__cxa_atexit); |
Dmitry Vyukov | c78140f | 2013-10-03 14:00:46 +0000 | [diff] [blame] | 2188 | TSAN_INTERCEPT(_exit); |
Dmitry Vyukov | 4554b7a | 2012-12-18 14:44:44 +0000 | [diff] [blame] | 2189 | |
Dmitry Vyukov | 91ac008 | 2012-12-04 07:28:25 +0000 | [diff] [blame] | 2190 | // Need to setup it, because interceptors check that the function is resolved. |
| 2191 | // But atexit is emitted directly into the module, so can't be resolved. |
| 2192 | REAL(atexit) = (int(*)(void(*)()))unreachable; |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2193 | atexit_ctx = new(internal_alloc(MBlockAtExit, sizeof(AtExitContext))) |
| 2194 | AtExitContext(); |
| 2195 | |
Dmitry Vyukov | 31c05ea | 2013-01-29 13:05:30 +0000 | [diff] [blame] | 2196 | if (REAL(__cxa_atexit)(&finalize, 0, 0)) { |
Alexey Samsonov | b1fe302 | 2012-11-02 12:17:51 +0000 | [diff] [blame] | 2197 | Printf("ThreadSanitizer: failed to setup atexit callback\n"); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2198 | Die(); |
| 2199 | } |
| 2200 | |
| 2201 | if (pthread_key_create(&g_thread_finalize_key, &thread_finalize)) { |
Alexey Samsonov | b1fe302 | 2012-11-02 12:17:51 +0000 | [diff] [blame] | 2202 | Printf("ThreadSanitizer: failed to create thread key\n"); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2203 | Die(); |
| 2204 | } |
Dmitry Vyukov | 3f4e6d9 | 2012-12-07 14:40:10 +0000 | [diff] [blame] | 2205 | |
| 2206 | FdInit(); |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2207 | } |
| 2208 | |
Dmitry Vyukov | 2612773 | 2012-05-22 11:33:03 +0000 | [diff] [blame] | 2209 | void internal_start_thread(void(*func)(void *arg), void *arg) { |
Dmitry Vyukov | 58dc8be | 2013-10-28 12:29:32 +0000 | [diff] [blame] | 2210 | // Start the thread with signals blocked, otherwise it can steal users |
| 2211 | // signals. |
| 2212 | __sanitizer_kernel_sigset_t set, old; |
| 2213 | internal_sigfillset(&set); |
| 2214 | internal_sigprocmask(SIG_SETMASK, &set, &old); |
Dmitry Vyukov | 2612773 | 2012-05-22 11:33:03 +0000 | [diff] [blame] | 2215 | void *th; |
| 2216 | REAL(pthread_create)(&th, 0, (void*(*)(void *arg))func, arg); |
| 2217 | REAL(pthread_detach)(th); |
Dmitry Vyukov | 58dc8be | 2013-10-28 12:29:32 +0000 | [diff] [blame] | 2218 | internal_sigprocmask(SIG_SETMASK, &old, 0); |
Dmitry Vyukov | 2612773 | 2012-05-22 11:33:03 +0000 | [diff] [blame] | 2219 | } |
| 2220 | |
Kostya Serebryany | 7ac4148 | 2012-05-10 13:48:04 +0000 | [diff] [blame] | 2221 | } // namespace __tsan |