mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 20:55:01 +00:00
953 lines
26 KiB
C++
953 lines
26 KiB
C++
//===-- tsan_interface_atomic.cc ------------------------------------------===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of ThreadSanitizer (TSan), a race detector.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// ThreadSanitizer atomic operations are based on C++11/C1x standards.
|
|
// For background see C++11 standard. A slightly older, publicly
|
|
// available draft of the standard (not entirely up-to-date, but close enough
|
|
// for casual browsing) is available here:
|
|
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf
|
|
// The following page contains more background information:
|
|
// http://www.hpl.hp.com/personal/Hans_Boehm/c++mm/
|
|
|
|
#include "sanitizer_common/sanitizer_placement_new.h"
|
|
#include "sanitizer_common/sanitizer_stacktrace.h"
|
|
#include "sanitizer_common/sanitizer_mutex.h"
|
|
#include "tsan_flags.h"
|
|
#include "tsan_rtl.h"
|
|
|
|
using namespace __tsan; // NOLINT
|
|
|
|
// These should match declarations from public tsan_interface_atomic.h header.
|
|
typedef unsigned char a8;
|
|
typedef unsigned short a16; // NOLINT
|
|
typedef unsigned int a32;
|
|
typedef unsigned long long a64; // NOLINT
|
|
#if !defined(SANITIZER_GO) && (defined(__SIZEOF_INT128__) \
|
|
|| (__clang_major__ * 100 + __clang_minor__ >= 302)) && !defined(__mips64)
|
|
__extension__ typedef __int128 a128;
|
|
# define __TSAN_HAS_INT128 1
|
|
#else
|
|
# define __TSAN_HAS_INT128 0
|
|
#endif
|
|
|
|
#if !defined(SANITIZER_GO) && __TSAN_HAS_INT128
|
|
// Protects emulation of 128-bit atomic operations.
|
|
static StaticSpinMutex mutex128;
|
|
#endif
|
|
|
|
// Part of ABI, do not change.
|
|
// http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/atomic?view=markup
|
|
typedef enum {
|
|
mo_relaxed,
|
|
mo_consume,
|
|
mo_acquire,
|
|
mo_release,
|
|
mo_acq_rel,
|
|
mo_seq_cst
|
|
} morder;
|
|
|
|
static bool IsLoadOrder(morder mo) {
|
|
return mo == mo_relaxed || mo == mo_consume
|
|
|| mo == mo_acquire || mo == mo_seq_cst;
|
|
}
|
|
|
|
static bool IsStoreOrder(morder mo) {
|
|
return mo == mo_relaxed || mo == mo_release || mo == mo_seq_cst;
|
|
}
|
|
|
|
static bool IsReleaseOrder(morder mo) {
|
|
return mo == mo_release || mo == mo_acq_rel || mo == mo_seq_cst;
|
|
}
|
|
|
|
static bool IsAcquireOrder(morder mo) {
|
|
return mo == mo_consume || mo == mo_acquire
|
|
|| mo == mo_acq_rel || mo == mo_seq_cst;
|
|
}
|
|
|
|
static bool IsAcqRelOrder(morder mo) {
|
|
return mo == mo_acq_rel || mo == mo_seq_cst;
|
|
}
|
|
|
|
template<typename T> T func_xchg(volatile T *v, T op) {
|
|
T res = __sync_lock_test_and_set(v, op);
|
|
// __sync_lock_test_and_set does not contain full barrier.
|
|
__sync_synchronize();
|
|
return res;
|
|
}
|
|
|
|
template<typename T> T func_add(volatile T *v, T op) {
|
|
return __sync_fetch_and_add(v, op);
|
|
}
|
|
|
|
template<typename T> T func_sub(volatile T *v, T op) {
|
|
return __sync_fetch_and_sub(v, op);
|
|
}
|
|
|
|
template<typename T> T func_and(volatile T *v, T op) {
|
|
return __sync_fetch_and_and(v, op);
|
|
}
|
|
|
|
template<typename T> T func_or(volatile T *v, T op) {
|
|
return __sync_fetch_and_or(v, op);
|
|
}
|
|
|
|
template<typename T> T func_xor(volatile T *v, T op) {
|
|
return __sync_fetch_and_xor(v, op);
|
|
}
|
|
|
|
template<typename T> T func_nand(volatile T *v, T op) {
|
|
// clang does not support __sync_fetch_and_nand.
|
|
T cmp = *v;
|
|
for (;;) {
|
|
T newv = ~(cmp & op);
|
|
T cur = __sync_val_compare_and_swap(v, cmp, newv);
|
|
if (cmp == cur)
|
|
return cmp;
|
|
cmp = cur;
|
|
}
|
|
}
|
|
|
|
template<typename T> T func_cas(volatile T *v, T cmp, T xch) {
|
|
return __sync_val_compare_and_swap(v, cmp, xch);
|
|
}
|
|
|
|
// clang does not support 128-bit atomic ops.
|
|
// Atomic ops are executed under tsan internal mutex,
|
|
// here we assume that the atomic variables are not accessed
|
|
// from non-instrumented code.
|
|
#if !defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) && !defined(SANITIZER_GO) \
|
|
&& __TSAN_HAS_INT128
|
|
a128 func_xchg(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = op;
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_add(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = cmp + op;
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_sub(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = cmp - op;
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_and(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = cmp & op;
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_or(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = cmp | op;
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_xor(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = cmp ^ op;
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_nand(volatile a128 *v, a128 op) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cmp = *v;
|
|
*v = ~(cmp & op);
|
|
return cmp;
|
|
}
|
|
|
|
a128 func_cas(volatile a128 *v, a128 cmp, a128 xch) {
|
|
SpinMutexLock lock(&mutex128);
|
|
a128 cur = *v;
|
|
if (cur == cmp)
|
|
*v = xch;
|
|
return cur;
|
|
}
|
|
#endif
|
|
|
|
template<typename T>
|
|
static int SizeLog() {
|
|
if (sizeof(T) <= 1)
|
|
return kSizeLog1;
|
|
else if (sizeof(T) <= 2)
|
|
return kSizeLog2;
|
|
else if (sizeof(T) <= 4)
|
|
return kSizeLog4;
|
|
else
|
|
return kSizeLog8;
|
|
// For 16-byte atomics we also use 8-byte memory access,
|
|
// this leads to false negatives only in very obscure cases.
|
|
}
|
|
|
|
#ifndef SANITIZER_GO
|
|
static atomic_uint8_t *to_atomic(const volatile a8 *a) {
|
|
return reinterpret_cast<atomic_uint8_t *>(const_cast<a8 *>(a));
|
|
}
|
|
|
|
static atomic_uint16_t *to_atomic(const volatile a16 *a) {
|
|
return reinterpret_cast<atomic_uint16_t *>(const_cast<a16 *>(a));
|
|
}
|
|
#endif
|
|
|
|
static atomic_uint32_t *to_atomic(const volatile a32 *a) {
|
|
return reinterpret_cast<atomic_uint32_t *>(const_cast<a32 *>(a));
|
|
}
|
|
|
|
static atomic_uint64_t *to_atomic(const volatile a64 *a) {
|
|
return reinterpret_cast<atomic_uint64_t *>(const_cast<a64 *>(a));
|
|
}
|
|
|
|
static memory_order to_mo(morder mo) {
|
|
switch (mo) {
|
|
case mo_relaxed: return memory_order_relaxed;
|
|
case mo_consume: return memory_order_consume;
|
|
case mo_acquire: return memory_order_acquire;
|
|
case mo_release: return memory_order_release;
|
|
case mo_acq_rel: return memory_order_acq_rel;
|
|
case mo_seq_cst: return memory_order_seq_cst;
|
|
}
|
|
CHECK(0);
|
|
return memory_order_seq_cst;
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicLoad(const volatile T *a, morder mo) {
|
|
return atomic_load(to_atomic(a), to_mo(mo));
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128 && !defined(SANITIZER_GO)
|
|
static a128 NoTsanAtomicLoad(const volatile a128 *a, morder mo) {
|
|
SpinMutexLock lock(&mutex128);
|
|
return *a;
|
|
}
|
|
#endif
|
|
|
|
template<typename T>
|
|
static T AtomicLoad(ThreadState *thr, uptr pc, const volatile T *a,
|
|
morder mo) {
|
|
CHECK(IsLoadOrder(mo));
|
|
// This fast-path is critical for performance.
|
|
// Assume the access is atomic.
|
|
if (!IsAcquireOrder(mo)) {
|
|
MemoryReadAtomic(thr, pc, (uptr)a, SizeLog<T>());
|
|
return NoTsanAtomicLoad(a, mo);
|
|
}
|
|
SyncVar *s = ctx->metamap.GetOrCreateAndLock(thr, pc, (uptr)a, false);
|
|
AcquireImpl(thr, pc, &s->clock);
|
|
T v = NoTsanAtomicLoad(a, mo);
|
|
s->mtx.ReadUnlock();
|
|
MemoryReadAtomic(thr, pc, (uptr)a, SizeLog<T>());
|
|
return v;
|
|
}
|
|
|
|
template<typename T>
|
|
static void NoTsanAtomicStore(volatile T *a, T v, morder mo) {
|
|
atomic_store(to_atomic(a), v, to_mo(mo));
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128 && !defined(SANITIZER_GO)
|
|
static void NoTsanAtomicStore(volatile a128 *a, a128 v, morder mo) {
|
|
SpinMutexLock lock(&mutex128);
|
|
*a = v;
|
|
}
|
|
#endif
|
|
|
|
template<typename T>
|
|
static void AtomicStore(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
CHECK(IsStoreOrder(mo));
|
|
MemoryWriteAtomic(thr, pc, (uptr)a, SizeLog<T>());
|
|
// This fast-path is critical for performance.
|
|
// Assume the access is atomic.
|
|
// Strictly saying even relaxed store cuts off release sequence,
|
|
// so must reset the clock.
|
|
if (!IsReleaseOrder(mo)) {
|
|
NoTsanAtomicStore(a, v, mo);
|
|
return;
|
|
}
|
|
__sync_synchronize();
|
|
SyncVar *s = ctx->metamap.GetOrCreateAndLock(thr, pc, (uptr)a, true);
|
|
thr->fast_state.IncrementEpoch();
|
|
// Can't increment epoch w/o writing to the trace as well.
|
|
TraceAddEvent(thr, thr->fast_state, EventTypeMop, 0);
|
|
ReleaseImpl(thr, pc, &s->clock);
|
|
NoTsanAtomicStore(a, v, mo);
|
|
s->mtx.Unlock();
|
|
}
|
|
|
|
template<typename T, T (*F)(volatile T *v, T op)>
|
|
static T AtomicRMW(ThreadState *thr, uptr pc, volatile T *a, T v, morder mo) {
|
|
MemoryWriteAtomic(thr, pc, (uptr)a, SizeLog<T>());
|
|
SyncVar *s = 0;
|
|
if (mo != mo_relaxed) {
|
|
s = ctx->metamap.GetOrCreateAndLock(thr, pc, (uptr)a, true);
|
|
thr->fast_state.IncrementEpoch();
|
|
// Can't increment epoch w/o writing to the trace as well.
|
|
TraceAddEvent(thr, thr->fast_state, EventTypeMop, 0);
|
|
if (IsAcqRelOrder(mo))
|
|
AcquireReleaseImpl(thr, pc, &s->clock);
|
|
else if (IsReleaseOrder(mo))
|
|
ReleaseImpl(thr, pc, &s->clock);
|
|
else if (IsAcquireOrder(mo))
|
|
AcquireImpl(thr, pc, &s->clock);
|
|
}
|
|
v = F(a, v);
|
|
if (s)
|
|
s->mtx.Unlock();
|
|
return v;
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicExchange(volatile T *a, T v, morder mo) {
|
|
return func_xchg(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicFetchAdd(volatile T *a, T v, morder mo) {
|
|
return func_add(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicFetchSub(volatile T *a, T v, morder mo) {
|
|
return func_sub(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicFetchAnd(volatile T *a, T v, morder mo) {
|
|
return func_and(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicFetchOr(volatile T *a, T v, morder mo) {
|
|
return func_or(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicFetchXor(volatile T *a, T v, morder mo) {
|
|
return func_xor(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicFetchNand(volatile T *a, T v, morder mo) {
|
|
return func_nand(a, v);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicExchange(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_xchg>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicFetchAdd(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_add>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicFetchSub(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_sub>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicFetchAnd(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_and>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicFetchOr(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_or>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicFetchXor(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_xor>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicFetchNand(ThreadState *thr, uptr pc, volatile T *a, T v,
|
|
morder mo) {
|
|
return AtomicRMW<T, func_nand>(thr, pc, a, v, mo);
|
|
}
|
|
|
|
template<typename T>
|
|
static bool NoTsanAtomicCAS(volatile T *a, T *c, T v, morder mo, morder fmo) {
|
|
return atomic_compare_exchange_strong(to_atomic(a), c, v, to_mo(mo));
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
static bool NoTsanAtomicCAS(volatile a128 *a, a128 *c, a128 v,
|
|
morder mo, morder fmo) {
|
|
a128 old = *c;
|
|
a128 cur = func_cas(a, old, v);
|
|
if (cur == old)
|
|
return true;
|
|
*c = cur;
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
template<typename T>
|
|
static T NoTsanAtomicCAS(volatile T *a, T c, T v, morder mo, morder fmo) {
|
|
NoTsanAtomicCAS(a, &c, v, mo, fmo);
|
|
return c;
|
|
}
|
|
|
|
template<typename T>
|
|
static bool AtomicCAS(ThreadState *thr, uptr pc,
|
|
volatile T *a, T *c, T v, morder mo, morder fmo) {
|
|
(void)fmo; // Unused because llvm does not pass it yet.
|
|
MemoryWriteAtomic(thr, pc, (uptr)a, SizeLog<T>());
|
|
SyncVar *s = 0;
|
|
bool write_lock = mo != mo_acquire && mo != mo_consume;
|
|
if (mo != mo_relaxed) {
|
|
s = ctx->metamap.GetOrCreateAndLock(thr, pc, (uptr)a, write_lock);
|
|
thr->fast_state.IncrementEpoch();
|
|
// Can't increment epoch w/o writing to the trace as well.
|
|
TraceAddEvent(thr, thr->fast_state, EventTypeMop, 0);
|
|
if (IsAcqRelOrder(mo))
|
|
AcquireReleaseImpl(thr, pc, &s->clock);
|
|
else if (IsReleaseOrder(mo))
|
|
ReleaseImpl(thr, pc, &s->clock);
|
|
else if (IsAcquireOrder(mo))
|
|
AcquireImpl(thr, pc, &s->clock);
|
|
}
|
|
T cc = *c;
|
|
T pr = func_cas(a, cc, v);
|
|
if (s) {
|
|
if (write_lock)
|
|
s->mtx.Unlock();
|
|
else
|
|
s->mtx.ReadUnlock();
|
|
}
|
|
if (pr == cc)
|
|
return true;
|
|
*c = pr;
|
|
return false;
|
|
}
|
|
|
|
template<typename T>
|
|
static T AtomicCAS(ThreadState *thr, uptr pc,
|
|
volatile T *a, T c, T v, morder mo, morder fmo) {
|
|
AtomicCAS(thr, pc, a, &c, v, mo, fmo);
|
|
return c;
|
|
}
|
|
|
|
#ifndef SANITIZER_GO
|
|
static void NoTsanAtomicFence(morder mo) {
|
|
__sync_synchronize();
|
|
}
|
|
|
|
static void AtomicFence(ThreadState *thr, uptr pc, morder mo) {
|
|
// FIXME(dvyukov): not implemented.
|
|
__sync_synchronize();
|
|
}
|
|
#endif
|
|
|
|
// Interface functions follow.
|
|
#ifndef SANITIZER_GO
|
|
|
|
// C/C++
|
|
|
|
#define SCOPED_ATOMIC(func, ...) \
|
|
const uptr callpc = (uptr)__builtin_return_address(0); \
|
|
uptr pc = StackTrace::GetCurrentPc(); \
|
|
mo = flags()->force_seq_cst_atomics ? (morder)mo_seq_cst : mo; \
|
|
ThreadState *const thr = cur_thread(); \
|
|
if (thr->ignore_interceptors) \
|
|
return NoTsanAtomic##func(__VA_ARGS__); \
|
|
AtomicStatInc(thr, sizeof(*a), mo, StatAtomic##func); \
|
|
ScopedAtomic sa(thr, callpc, a, mo, __func__); \
|
|
return Atomic##func(thr, pc, __VA_ARGS__); \
|
|
/**/
|
|
|
|
class ScopedAtomic {
|
|
public:
|
|
ScopedAtomic(ThreadState *thr, uptr pc, const volatile void *a,
|
|
morder mo, const char *func)
|
|
: thr_(thr) {
|
|
FuncEntry(thr_, pc);
|
|
DPrintf("#%d: %s(%p, %d)\n", thr_->tid, func, a, mo);
|
|
}
|
|
~ScopedAtomic() {
|
|
ProcessPendingSignals(thr_);
|
|
FuncExit(thr_);
|
|
}
|
|
private:
|
|
ThreadState *thr_;
|
|
};
|
|
|
|
static void AtomicStatInc(ThreadState *thr, uptr size, morder mo, StatType t) {
|
|
StatInc(thr, StatAtomic);
|
|
StatInc(thr, t);
|
|
StatInc(thr, size == 1 ? StatAtomic1
|
|
: size == 2 ? StatAtomic2
|
|
: size == 4 ? StatAtomic4
|
|
: size == 8 ? StatAtomic8
|
|
: StatAtomic16);
|
|
StatInc(thr, mo == mo_relaxed ? StatAtomicRelaxed
|
|
: mo == mo_consume ? StatAtomicConsume
|
|
: mo == mo_acquire ? StatAtomicAcquire
|
|
: mo == mo_release ? StatAtomicRelease
|
|
: mo == mo_acq_rel ? StatAtomicAcq_Rel
|
|
: StatAtomicSeq_Cst);
|
|
}
|
|
|
|
extern "C" {
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_load(const volatile a8 *a, morder mo) {
|
|
SCOPED_ATOMIC(Load, a, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_load(const volatile a16 *a, morder mo) {
|
|
SCOPED_ATOMIC(Load, a, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_load(const volatile a32 *a, morder mo) {
|
|
SCOPED_ATOMIC(Load, a, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_load(const volatile a64 *a, morder mo) {
|
|
SCOPED_ATOMIC(Load, a, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_load(const volatile a128 *a, morder mo) {
|
|
SCOPED_ATOMIC(Load, a, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic8_store(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(Store, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic16_store(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(Store, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic32_store(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(Store, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic64_store(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(Store, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic128_store(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(Store, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_exchange(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(Exchange, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_exchange(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(Exchange, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_exchange(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(Exchange, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_exchange(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(Exchange, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_exchange(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(Exchange, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_fetch_add(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAdd, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_fetch_add(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAdd, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_fetch_add(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAdd, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_fetch_add(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAdd, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_fetch_add(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAdd, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_fetch_sub(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchSub, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_fetch_sub(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchSub, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_fetch_sub(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchSub, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_fetch_sub(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchSub, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_fetch_sub(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchSub, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_fetch_and(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAnd, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_fetch_and(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAnd, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_fetch_and(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAnd, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_fetch_and(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAnd, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_fetch_and(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchAnd, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_fetch_or(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchOr, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_fetch_or(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchOr, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_fetch_or(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchOr, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_fetch_or(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchOr, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_fetch_or(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchOr, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_fetch_xor(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchXor, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_fetch_xor(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchXor, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_fetch_xor(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchXor, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_fetch_xor(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchXor, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_fetch_xor(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchXor, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_fetch_nand(volatile a8 *a, a8 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchNand, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_fetch_nand(volatile a16 *a, a16 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchNand, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_fetch_nand(volatile a32 *a, a32 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchNand, a, v, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_fetch_nand(volatile a64 *a, a64 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchNand, a, v, mo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_fetch_nand(volatile a128 *a, a128 v, morder mo) {
|
|
SCOPED_ATOMIC(FetchNand, a, v, mo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic8_compare_exchange_strong(volatile a8 *a, a8 *c, a8 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic16_compare_exchange_strong(volatile a16 *a, a16 *c, a16 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic32_compare_exchange_strong(volatile a32 *a, a32 *c, a32 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic64_compare_exchange_strong(volatile a64 *a, a64 *c, a64 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic128_compare_exchange_strong(volatile a128 *a, a128 *c, a128 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic8_compare_exchange_weak(volatile a8 *a, a8 *c, a8 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic16_compare_exchange_weak(volatile a16 *a, a16 *c, a16 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic32_compare_exchange_weak(volatile a32 *a, a32 *c, a32 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic64_compare_exchange_weak(volatile a64 *a, a64 *c, a64 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
int __tsan_atomic128_compare_exchange_weak(volatile a128 *a, a128 *c, a128 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a8 __tsan_atomic8_compare_exchange_val(volatile a8 *a, a8 c, a8 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a16 __tsan_atomic16_compare_exchange_val(volatile a16 *a, a16 c, a16 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a32 __tsan_atomic32_compare_exchange_val(volatile a32 *a, a32 c, a32 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a64 __tsan_atomic64_compare_exchange_val(volatile a64 *a, a64 c, a64 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
|
|
#if __TSAN_HAS_INT128
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
a128 __tsan_atomic128_compare_exchange_val(volatile a128 *a, a128 c, a128 v,
|
|
morder mo, morder fmo) {
|
|
SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
|
|
}
|
|
#endif
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic_thread_fence(morder mo) {
|
|
char* a = 0;
|
|
SCOPED_ATOMIC(Fence, mo);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_atomic_signal_fence(morder mo) {
|
|
}
|
|
} // extern "C"
|
|
|
|
#else // #ifndef SANITIZER_GO
|
|
|
|
// Go
|
|
|
|
#define ATOMIC(func, ...) \
|
|
if (thr->ignore_sync) { \
|
|
NoTsanAtomic##func(__VA_ARGS__); \
|
|
} else { \
|
|
FuncEntry(thr, cpc); \
|
|
Atomic##func(thr, pc, __VA_ARGS__); \
|
|
FuncExit(thr); \
|
|
} \
|
|
/**/
|
|
|
|
#define ATOMIC_RET(func, ret, ...) \
|
|
if (thr->ignore_sync) { \
|
|
(ret) = NoTsanAtomic##func(__VA_ARGS__); \
|
|
} else { \
|
|
FuncEntry(thr, cpc); \
|
|
(ret) = Atomic##func(thr, pc, __VA_ARGS__); \
|
|
FuncExit(thr); \
|
|
} \
|
|
/**/
|
|
|
|
extern "C" {
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic32_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC_RET(Load, *(a32*)(a+8), *(a32**)a, mo_acquire);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic64_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC_RET(Load, *(a64*)(a+8), *(a64**)a, mo_acquire);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic32_store(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC(Store, *(a32**)a, *(a32*)(a+8), mo_release);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic64_store(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC(Store, *(a64**)a, *(a64*)(a+8), mo_release);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic32_fetch_add(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC_RET(FetchAdd, *(a32*)(a+16), *(a32**)a, *(a32*)(a+8), mo_acq_rel);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic64_fetch_add(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC_RET(FetchAdd, *(a64*)(a+16), *(a64**)a, *(a64*)(a+8), mo_acq_rel);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic32_exchange(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC_RET(Exchange, *(a32*)(a+16), *(a32**)a, *(a32*)(a+8), mo_acq_rel);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic64_exchange(ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
ATOMIC_RET(Exchange, *(a64*)(a+16), *(a64**)a, *(a64*)(a+8), mo_acq_rel);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic32_compare_exchange(
|
|
ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
a32 cur = 0;
|
|
a32 cmp = *(a32*)(a+8);
|
|
ATOMIC_RET(CAS, cur, *(a32**)a, cmp, *(a32*)(a+12), mo_acq_rel, mo_acquire);
|
|
*(bool*)(a+16) = (cur == cmp);
|
|
}
|
|
|
|
SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __tsan_go_atomic64_compare_exchange(
|
|
ThreadState *thr, uptr cpc, uptr pc, u8 *a) {
|
|
a64 cur = 0;
|
|
a64 cmp = *(a64*)(a+8);
|
|
ATOMIC_RET(CAS, cur, *(a64**)a, cmp, *(a64*)(a+16), mo_acq_rel, mo_acquire);
|
|
*(bool*)(a+24) = (cur == cmp);
|
|
}
|
|
} // extern "C"
|
|
#endif // #ifndef SANITIZER_GO
|