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authorDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
commitca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch)
tree9b19e801150082c33e9152275829a6ce90614b55 /lib/tsan/rtl/tsan_platform.h
parent8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff)
Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034
https://llvm.org/svn/llvm-project/compiler-rt/trunk@224034
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=276789 svn path=/vendor/compiler-rt/compiler-rt-r224034/; revision=276790; tag=vendor/compiler-rt/compiler-rt-r224034
Diffstat (limited to 'lib/tsan/rtl/tsan_platform.h')
-rw-r--r--lib/tsan/rtl/tsan_platform.h320
1 files changed, 209 insertions, 111 deletions
diff --git a/lib/tsan/rtl/tsan_platform.h b/lib/tsan/rtl/tsan_platform.h
index 32e22ba60434..270a7519dd0a 100644
--- a/lib/tsan/rtl/tsan_platform.h
+++ b/lib/tsan/rtl/tsan_platform.h
@@ -12,161 +12,259 @@
// Platform-specific code.
//===----------------------------------------------------------------------===//
+#ifndef TSAN_PLATFORM_H
+#define TSAN_PLATFORM_H
+
+#if !defined(__LP64__) && !defined(_WIN64)
+# error "Only 64-bit is supported"
+#endif
+
+#include "tsan_defs.h"
+#include "tsan_trace.h"
+
+namespace __tsan {
+
+#if !defined(SANITIZER_GO)
+
/*
-C++ linux memory layout:
-0000 0000 0000 - 03c0 0000 0000: protected
-03c0 0000 0000 - 1000 0000 0000: shadow
-1000 0000 0000 - 6000 0000 0000: protected
-6000 0000 0000 - 6200 0000 0000: traces
-6200 0000 0000 - 7d00 0000 0000: -
-7d00 0000 0000 - 7e00 0000 0000: heap
-7e00 0000 0000 - 7fff ffff ffff: modules and main thread stack
-
-C++ COMPAT linux memory layout:
-0000 0000 0000 - 0400 0000 0000: protected
-0400 0000 0000 - 1000 0000 0000: shadow
-1000 0000 0000 - 2900 0000 0000: protected
-2900 0000 0000 - 2c00 0000 0000: modules
-2c00 0000 0000 - 6000 0000 0000: -
+C/C++ on linux and freebsd
+0000 0000 1000 - 0100 0000 0000: main binary and/or MAP_32BIT mappings
+0100 0000 0000 - 0200 0000 0000: -
+0200 0000 0000 - 1000 0000 0000: shadow
+1000 0000 0000 - 3000 0000 0000: -
+3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
+4000 0000 0000 - 6000 0000 0000: -
6000 0000 0000 - 6200 0000 0000: traces
6200 0000 0000 - 7d00 0000 0000: -
7d00 0000 0000 - 7e00 0000 0000: heap
-7e00 0000 0000 - 7f00 0000 0000: -
-7f00 0000 0000 - 7fff ffff ffff: main thread stack
+7e00 0000 0000 - 7e80 0000 0000: -
+7e80 0000 0000 - 8000 0000 0000: modules and main thread stack
+*/
-Go linux and darwin memory layout:
-0000 0000 0000 - 0000 1000 0000: executable
-0000 1000 0000 - 00f8 0000 0000: -
-00c0 0000 0000 - 00e0 0000 0000: heap
-00e0 0000 0000 - 1000 0000 0000: -
-1000 0000 0000 - 1380 0000 0000: shadow
-1460 0000 0000 - 6000 0000 0000: -
-6000 0000 0000 - 6200 0000 0000: traces
-6200 0000 0000 - 7fff ffff ffff: -
+const uptr kMetaShadowBeg = 0x300000000000ull;
+const uptr kMetaShadowEnd = 0x400000000000ull;
+const uptr kTraceMemBeg = 0x600000000000ull;
+const uptr kTraceMemEnd = 0x620000000000ull;
+const uptr kShadowBeg = 0x020000000000ull;
+const uptr kShadowEnd = 0x100000000000ull;
+const uptr kHeapMemBeg = 0x7d0000000000ull;
+const uptr kHeapMemEnd = 0x7e0000000000ull;
+const uptr kLoAppMemBeg = 0x000000001000ull;
+const uptr kLoAppMemEnd = 0x010000000000ull;
+const uptr kHiAppMemBeg = 0x7e8000000000ull;
+const uptr kHiAppMemEnd = 0x800000000000ull;
+const uptr kAppMemMsk = 0x7c0000000000ull;
+const uptr kAppMemXor = 0x020000000000ull;
-Go windows memory layout:
-0000 0000 0000 - 0000 1000 0000: executable
-0000 1000 0000 - 00f8 0000 0000: -
+ALWAYS_INLINE
+bool IsAppMem(uptr mem) {
+ return (mem >= kHeapMemBeg && mem < kHeapMemEnd) ||
+ (mem >= kLoAppMemBeg && mem < kLoAppMemEnd) ||
+ (mem >= kHiAppMemBeg && mem < kHiAppMemEnd);
+}
+
+ALWAYS_INLINE
+bool IsShadowMem(uptr mem) {
+ return mem >= kShadowBeg && mem <= kShadowEnd;
+}
+
+ALWAYS_INLINE
+bool IsMetaMem(uptr mem) {
+ return mem >= kMetaShadowBeg && mem <= kMetaShadowEnd;
+}
+
+ALWAYS_INLINE
+uptr MemToShadow(uptr x) {
+ DCHECK(IsAppMem(x));
+ return (((x) & ~(kAppMemMsk | (kShadowCell - 1)))
+ ^ kAppMemXor) * kShadowCnt;
+}
+
+ALWAYS_INLINE
+u32 *MemToMeta(uptr x) {
+ DCHECK(IsAppMem(x));
+ return (u32*)(((((x) & ~(kAppMemMsk | (kMetaShadowCell - 1)))
+ ^ kAppMemXor) / kMetaShadowCell * kMetaShadowSize) | kMetaShadowBeg);
+}
+
+ALWAYS_INLINE
+uptr ShadowToMem(uptr s) {
+ CHECK(IsShadowMem(s));
+ if (s >= MemToShadow(kLoAppMemBeg) && s <= MemToShadow(kLoAppMemEnd - 1))
+ return (s / kShadowCnt) ^ kAppMemXor;
+ else
+ return ((s / kShadowCnt) ^ kAppMemXor) | kAppMemMsk;
+}
+
+static USED uptr UserRegions[] = {
+ kLoAppMemBeg, kLoAppMemEnd,
+ kHiAppMemBeg, kHiAppMemEnd,
+ kHeapMemBeg, kHeapMemEnd,
+};
+
+#elif defined(SANITIZER_GO) && !SANITIZER_WINDOWS
+
+/* Go on linux, darwin and freebsd
+0000 0000 1000 - 0000 1000 0000: executable
+0000 1000 0000 - 00c0 0000 0000: -
00c0 0000 0000 - 00e0 0000 0000: heap
-00e0 0000 0000 - 0100 0000 0000: -
-0100 0000 0000 - 0560 0000 0000: shadow
-0560 0000 0000 - 0760 0000 0000: traces
-0760 0000 0000 - 07ff ffff ffff: -
+00e0 0000 0000 - 2000 0000 0000: -
+2000 0000 0000 - 2380 0000 0000: shadow
+2380 0000 0000 - 3000 0000 0000: -
+3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
+4000 0000 0000 - 6000 0000 0000: -
+6000 0000 0000 - 6200 0000 0000: traces
+6200 0000 0000 - 8000 0000 0000: -
*/
-#ifndef TSAN_PLATFORM_H
-#define TSAN_PLATFORM_H
+const uptr kMetaShadowBeg = 0x300000000000ull;
+const uptr kMetaShadowEnd = 0x400000000000ull;
+const uptr kTraceMemBeg = 0x600000000000ull;
+const uptr kTraceMemEnd = 0x620000000000ull;
+const uptr kShadowBeg = 0x200000000000ull;
+const uptr kShadowEnd = 0x238000000000ull;
+const uptr kAppMemBeg = 0x000000001000ull;
+const uptr kAppMemEnd = 0x00e000000000ull;
-#include "tsan_defs.h"
-#include "tsan_trace.h"
+ALWAYS_INLINE
+bool IsAppMem(uptr mem) {
+ return mem >= kAppMemBeg && mem < kAppMemEnd;
+}
-#if defined(__LP64__) || defined(_WIN64)
-namespace __tsan {
+ALWAYS_INLINE
+bool IsShadowMem(uptr mem) {
+ return mem >= kShadowBeg && mem <= kShadowEnd;
+}
-#if defined(TSAN_GO)
-static const uptr kLinuxAppMemBeg = 0x000000000000ULL;
-static const uptr kLinuxAppMemEnd = 0x04dfffffffffULL;
-# if SANITIZER_WINDOWS
-static const uptr kLinuxShadowMsk = 0x010000000000ULL;
-# else
-static const uptr kLinuxShadowMsk = 0x200000000000ULL;
-# endif
-// TSAN_COMPAT_SHADOW is intended for COMPAT virtual memory layout,
-// when memory addresses are of the 0x2axxxxxxxxxx form.
-// The option is enabled with 'setarch x86_64 -L'.
-#elif defined(TSAN_COMPAT_SHADOW) && TSAN_COMPAT_SHADOW
-static const uptr kLinuxAppMemBeg = 0x290000000000ULL;
-static const uptr kLinuxAppMemEnd = 0x7fffffffffffULL;
-#else
-static const uptr kLinuxAppMemBeg = 0x7cf000000000ULL;
-static const uptr kLinuxAppMemEnd = 0x7fffffffffffULL;
-#endif
+ALWAYS_INLINE
+bool IsMetaMem(uptr mem) {
+ return mem >= kMetaShadowBeg && mem <= kMetaShadowEnd;
+}
-static const uptr kLinuxAppMemMsk = 0x7c0000000000ULL;
+ALWAYS_INLINE
+uptr MemToShadow(uptr x) {
+ DCHECK(IsAppMem(x));
+ return ((x & ~(kShadowCell - 1)) * kShadowCnt) | kShadowBeg;
+}
-#if SANITIZER_WINDOWS
-const uptr kTraceMemBegin = 0x056000000000ULL;
-#else
-const uptr kTraceMemBegin = 0x600000000000ULL;
-#endif
-const uptr kTraceMemSize = 0x020000000000ULL;
+ALWAYS_INLINE
+u32 *MemToMeta(uptr x) {
+ DCHECK(IsAppMem(x));
+ return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
+ kMetaShadowCell * kMetaShadowSize) | kMetaShadowBeg);
+}
-// This has to be a macro to allow constant initialization of constants below.
-#ifndef TSAN_GO
-#define MemToShadow(addr) \
- (((addr) & ~(kLinuxAppMemMsk | (kShadowCell - 1))) * kShadowCnt)
-#else
-#define MemToShadow(addr) \
- ((((addr) & ~(kShadowCell - 1)) * kShadowCnt) | kLinuxShadowMsk)
-#endif
+ALWAYS_INLINE
+uptr ShadowToMem(uptr s) {
+ CHECK(IsShadowMem(s));
+ return (s & ~kShadowBeg) / kShadowCnt;
+}
+
+static USED uptr UserRegions[] = {
+ kAppMemBeg, kAppMemEnd,
+};
-static const uptr kLinuxShadowBeg = MemToShadow(kLinuxAppMemBeg);
-static const uptr kLinuxShadowEnd =
- MemToShadow(kLinuxAppMemEnd) | 0xff;
+#elif defined(SANITIZER_GO) && SANITIZER_WINDOWS
-static inline bool IsAppMem(uptr mem) {
- return mem >= kLinuxAppMemBeg && mem <= kLinuxAppMemEnd;
+/* Go on windows
+0000 0000 1000 - 0000 1000 0000: executable
+0000 1000 0000 - 00f8 0000 0000: -
+00c0 0000 0000 - 00e0 0000 0000: heap
+00e0 0000 0000 - 0100 0000 0000: -
+0100 0000 0000 - 0380 0000 0000: shadow
+0380 0000 0000 - 0560 0000 0000: -
+0560 0000 0000 - 0760 0000 0000: traces
+0760 0000 0000 - 07d0 0000 0000: metainfo (memory blocks and sync objects)
+07d0 0000 0000 - 8000 0000 0000: -
+*/
+
+const uptr kMetaShadowBeg = 0x076000000000ull;
+const uptr kMetaShadowEnd = 0x07d000000000ull;
+const uptr kTraceMemBeg = 0x056000000000ull;
+const uptr kTraceMemEnd = 0x076000000000ull;
+const uptr kShadowBeg = 0x010000000000ull;
+const uptr kShadowEnd = 0x038000000000ull;
+const uptr kAppMemBeg = 0x000000001000ull;
+const uptr kAppMemEnd = 0x00e000000000ull;
+
+ALWAYS_INLINE
+bool IsAppMem(uptr mem) {
+ return mem >= kAppMemBeg && mem < kAppMemEnd;
}
-static inline bool IsShadowMem(uptr mem) {
- return mem >= kLinuxShadowBeg && mem <= kLinuxShadowEnd;
+ALWAYS_INLINE
+bool IsShadowMem(uptr mem) {
+ return mem >= kShadowBeg && mem <= kShadowEnd;
}
-static inline uptr ShadowToMem(uptr shadow) {
- CHECK(IsShadowMem(shadow));
-#ifdef TSAN_GO
- return (shadow & ~kLinuxShadowMsk) / kShadowCnt;
-#else
- return (shadow / kShadowCnt) | kLinuxAppMemMsk;
-#endif
+ALWAYS_INLINE
+bool IsMetaMem(uptr mem) {
+ return mem >= kMetaShadowBeg && mem <= kMetaShadowEnd;
}
-// For COMPAT mapping returns an alternative address
-// that mapped to the same shadow address.
-// COMPAT mapping is not quite one-to-one.
-static inline uptr AlternativeAddress(uptr addr) {
-#if defined(TSAN_COMPAT_SHADOW) && TSAN_COMPAT_SHADOW
- return (addr & ~kLinuxAppMemMsk) | 0x280000000000ULL;
-#else
- return 0;
-#endif
+ALWAYS_INLINE
+uptr MemToShadow(uptr x) {
+ DCHECK(IsAppMem(x));
+ return ((x & ~(kShadowCell - 1)) * kShadowCnt) | kShadowBeg;
}
-void FlushShadowMemory();
-void WriteMemoryProfile(char *buf, uptr buf_size);
-uptr GetRSS();
+ALWAYS_INLINE
+u32 *MemToMeta(uptr x) {
+ DCHECK(IsAppMem(x));
+ return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
+ kMetaShadowCell * kMetaShadowSize) | kMetaShadowEnd);
+}
+
+ALWAYS_INLINE
+uptr ShadowToMem(uptr s) {
+ CHECK(IsShadowMem(s));
+ // FIXME(dvyukov): this is most likely wrong as the mapping is not bijection.
+ return (x & ~kShadowBeg) / kShadowCnt;
+}
-const char *InitializePlatform();
-void FinalizePlatform();
+static USED uptr UserRegions[] = {
+ kAppMemBeg, kAppMemEnd,
+};
+
+#else
+# error "Unknown platform"
+#endif
// The additional page is to catch shadow stack overflow as paging fault.
-const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace) + 4096
- + 4095) & ~4095;
+// Windows wants 64K alignment for mmaps.
+const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace)
+ + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1);
uptr ALWAYS_INLINE GetThreadTrace(int tid) {
- uptr p = kTraceMemBegin + (uptr)tid * kTotalTraceSize;
- DCHECK_LT(p, kTraceMemBegin + kTraceMemSize);
+ uptr p = kTraceMemBeg + (uptr)tid * kTotalTraceSize;
+ DCHECK_LT(p, kTraceMemEnd);
return p;
}
uptr ALWAYS_INLINE GetThreadTraceHeader(int tid) {
- uptr p = kTraceMemBegin + (uptr)tid * kTotalTraceSize
+ uptr p = kTraceMemBeg + (uptr)tid * kTotalTraceSize
+ kTraceSize * sizeof(Event);
- DCHECK_LT(p, kTraceMemBegin + kTraceMemSize);
+ DCHECK_LT(p, kTraceMemEnd);
return p;
}
-void internal_start_thread(void(*func)(void*), void *arg);
+void InitializePlatform();
+void FlushShadowMemory();
+void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
+
+void *internal_start_thread(void(*func)(void*), void *arg);
+void internal_join_thread(void *th);
// Says whether the addr relates to a global var.
// Guesses with high probability, may yield both false positives and negatives.
bool IsGlobalVar(uptr addr);
int ExtractResolvFDs(void *state, int *fds, int nfd);
+int ExtractRecvmsgFDs(void *msg, int *fds, int nfd);
-} // namespace __tsan
+int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m,
+ void *abstime), void *c, void *m, void *abstime,
+ void(*cleanup)(void *arg), void *arg);
-#else // defined(__LP64__) || defined(_WIN64)
-# error "Only 64-bit is supported"
-#endif
+} // namespace __tsan
#endif // TSAN_PLATFORM_H
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