projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| cd0be65c WM |
1 | //===-- tsan_platform_mac.cc ----------------------------------------------===// |
| 2 | // | |
| 3 | // This file is distributed under the University of Illinois Open Source | |
| 4 | // License. See LICENSE.TXT for details. | |
| 5 | // | |
| 6 | //===----------------------------------------------------------------------===// | |
| 7 | // | |
| 8 | // This file is a part of ThreadSanitizer (TSan), a race detector. | |
| 9 | // | |
| 10 | // Mac-specific code. | |
| 11 | //===----------------------------------------------------------------------===// | |
| 12 | ||
| 13 | #ifdef __APPLE__ | |
| 14 | ||
| 15 | #include "sanitizer_common/sanitizer_common.h" | |
| 16 | #include "sanitizer_common/sanitizer_libc.h" | |
| 17 | #include "sanitizer_common/sanitizer_procmaps.h" | |
| 18 | #include "tsan_platform.h" | |
| 19 | #include "tsan_rtl.h" | |
| 20 | #include "tsan_flags.h" | |
| 21 | ||
| 22 | #include <pthread.h> | |
| 23 | #include <signal.h> | |
| 24 | #include <stdio.h> | |
| 25 | #include <stdlib.h> | |
| 26 | #include <string.h> | |
| 27 | #include <stdarg.h> | |
| 28 | #include <sys/mman.h> | |
| 29 | #include <sys/syscall.h> | |
| 30 | #include <sys/time.h> | |
| 31 | #include <sys/types.h> | |
| 32 | #include <sys/resource.h> | |
| 33 | #include <sys/stat.h> | |
| 34 | #include <unistd.h> | |
| 35 | #include <errno.h> | |
| 36 | #include <sched.h> | |
| 37 | ||
| 38 | namespace __tsan { | |
| 39 | ||
| 40 | ScopedInRtl::ScopedInRtl() { | |
| 41 | } | |
| 42 | ||
| 43 | ScopedInRtl::~ScopedInRtl() { | |
| 44 | } | |
| 45 | ||
| 46 | uptr GetShadowMemoryConsumption() { | |
| 47 | return 0; | |
| 48 | } | |
| 49 | ||
| 50 | void FlushShadowMemory() { | |
| 51 | } | |
| 52 | ||
| e297eb60 | 53 | #ifndef TSAN_GO |
| cd0be65c WM |
54 | void InitializeShadowMemory() { |
| 55 | uptr shadow = (uptr)MmapFixedNoReserve(kLinuxShadowBeg, | |
| 56 | kLinuxShadowEnd - kLinuxShadowBeg); | |
| 57 | if (shadow != kLinuxShadowBeg) { | |
| e297eb60 KS |
58 | Printf("FATAL: ThreadSanitizer can not mmap the shadow memory\n"); |
| 59 | Printf("FATAL: Make sure to compile with -fPIE and " | |
| 60 | "to link with -pie.\n"); | |
| cd0be65c WM |
61 | Die(); |
| 62 | } | |
| 63 | DPrintf("kLinuxShadow %zx-%zx (%zuGB)\n", | |
| 64 | kLinuxShadowBeg, kLinuxShadowEnd, | |
| 65 | (kLinuxShadowEnd - kLinuxShadowBeg) >> 30); | |
| 66 | DPrintf("kLinuxAppMem %zx-%zx (%zuGB)\n", | |
| 67 | kLinuxAppMemBeg, kLinuxAppMemEnd, | |
| 68 | (kLinuxAppMemEnd - kLinuxAppMemBeg) >> 30); | |
| 69 | } | |
| e297eb60 | 70 | #endif |
| cd0be65c WM |
71 | |
| 72 | const char *InitializePlatform() { | |
| 73 | void *p = 0; | |
| 74 | if (sizeof(p) == 8) { | |
| 75 | // Disable core dumps, dumping of 16TB usually takes a bit long. | |
| 76 | // The following magic is to prevent clang from replacing it with memset. | |
| 77 | volatile rlimit lim; | |
| 78 | lim.rlim_cur = 0; | |
| 79 | lim.rlim_max = 0; | |
| 80 | setrlimit(RLIMIT_CORE, (rlimit*)&lim); | |
| 81 | } | |
| 82 | ||
| e297eb60 | 83 | return getenv(kTsanOptionsEnv); |
| cd0be65c WM |
84 | } |
| 85 | ||
| 86 | void FinalizePlatform() { | |
| 87 | fflush(0); | |
| 88 | } | |
| 89 | ||
| 90 | uptr GetTlsSize() { | |
| 91 | return 0; | |
| 92 | } | |
| 93 | ||
| 94 | void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size, | |
| 95 | uptr *tls_addr, uptr *tls_size) { | |
| 96 | *stk_addr = 0; | |
| 97 | *stk_size = 0; | |
| 98 | *tls_addr = 0; | |
| 99 | *tls_size = 0; | |
| 100 | } | |
| 101 | ||
| 102 | } // namespace __tsan | |
| 103 | ||
| 104 | #endif // #ifdef __APPLE__ |