[llvm-commits] [compiler-rt] r147878 - in /compiler-rt/trunk/lib/asan: asan_interceptors.cc asan_linux.cc asan_lock.h asan_mac.cc asan_thread_registry.cc
Chad Rosier
mcrosier at apple.com
Tue Jan 10 15:36:33 PST 2012
It's 10.6.8, which is Snow Leopard.
On Jan 10, 2012, at 3:27 PM, Kostya Serebryany wrote:
> OMG. Looking...
> Which version of MAcOS is that?
> I am, sure I've tested it on MacOS 10.6.
>
> --kcc
>
> On Tue, Jan 10, 2012 at 3:26 PM, Chad Rosier <mcrosier at apple.com> wrote:
> Hi Kostya,
> I believe we're seeing failures on our internal buildbots due to this commit. Clang is failing to build due to the following error:
>
> /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/llvm/projects/compiler-rt/lib/asan/asan_interceptors.cc:226:5: error: conflicting types for 'pthread_create'
> int pthread_create(void *thread, const void *attr,
> ^
> /usr/include/pthread.h:298:11: note: previous declaration is here
> int pthread_create(pthread_t * __restrict,
> ^
> 1 error generated.
> Chad
>
> On Jan 10, 2012, at 1:24 PM, Kostya Serebryany wrote:
>
>> Author: kcc
>> Date: Tue Jan 10 15:24:40 2012
>> New Revision: 147878
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=147878&view=rev
>> Log:
>> [asan] move OS-dependent code away from asan_lock.h
>>
>> Modified:
>> compiler-rt/trunk/lib/asan/asan_interceptors.cc
>> compiler-rt/trunk/lib/asan/asan_linux.cc
>> compiler-rt/trunk/lib/asan/asan_lock.h
>> compiler-rt/trunk/lib/asan/asan_mac.cc
>> compiler-rt/trunk/lib/asan/asan_thread_registry.cc
>>
>> Modified: compiler-rt/trunk/lib/asan/asan_interceptors.cc
>> URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_interceptors.cc?rev=147878&r1=147877&r2=147878&view=diff
>> ==============================================================================
>> --- compiler-rt/trunk/lib/asan/asan_interceptors.cc (original)
>> +++ compiler-rt/trunk/lib/asan/asan_interceptors.cc Tue Jan 10 15:24:40 2012
>> @@ -35,7 +35,7 @@
>> typedef longjmp_f _longjmp_f;
>> typedef longjmp_f siglongjmp_f;
>> typedef void (*__cxa_throw_f)(void *, void *, void *);
>> -typedef int (*pthread_create_f)(pthread_t *thread, const pthread_attr_t *attr,
>> +typedef int (*pthread_create_f)(void *thread, const void *attr,
>> void *(*start_routine) (void *), void *arg);
>> #ifdef __APPLE__
>> dispatch_async_f_f real_dispatch_async_f;
>> @@ -223,10 +223,13 @@
>> }
>>
>> extern "C"
>> +int pthread_create(void *thread, const void *attr,
>> + void *(*start_routine) (void *), void *arg);
>> +extern "C"
>> #ifndef __APPLE__
>> __attribute__((visibility("default")))
>> #endif
>> -int WRAP(pthread_create)(pthread_t *thread, const pthread_attr_t *attr,
>> +int WRAP(pthread_create)(void *thread, const void *attr,
>> void *(*start_routine) (void *), void *arg) {
>> GET_STACK_TRACE_HERE(kStackTraceMax, /*fast_unwind*/false);
>> AsanThread *curr_thread = asanThreadRegistry().GetCurrent();
>>
>> Modified: compiler-rt/trunk/lib/asan/asan_linux.cc
>> URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_linux.cc?rev=147878&r1=147877&r2=147878&view=diff
>> ==============================================================================
>> --- compiler-rt/trunk/lib/asan/asan_linux.cc (original)
>> +++ compiler-rt/trunk/lib/asan/asan_linux.cc Tue Jan 10 15:24:40 2012
>> @@ -15,6 +15,7 @@
>>
>> #include "asan_interceptors.h"
>> #include "asan_internal.h"
>> +#include "asan_lock.h"
>> #include "asan_procmaps.h"
>> #include "asan_thread.h"
>>
>> @@ -276,6 +277,26 @@
>> CHECK(AddrIsInStack((uintptr_t)&attr));
>> }
>>
>> +AsanLock::AsanLock(LinkerInitialized) {
>> + // We assume that pthread_mutex_t initialized to all zeroes is a valid
>> + // unlocked mutex. We can not use PTHREAD_MUTEX_INITIALIZER as it triggers
>> + // a gcc warning:
>> + // extended initializer lists only available with -std=c++0x or -std=gnu++0x
>> +}
>> +
>> +void AsanLock::Lock() {
>> + CHECK(sizeof(pthread_mutex_t) <= sizeof(opaque_storage_));
>> + pthread_mutex_lock((pthread_mutex_t*)&opaque_storage_);
>> + CHECK(!owner_);
>> + owner_ = (uintptr_t)pthread_self();
>> +}
>> +
>> +void AsanLock::Unlock() {
>> + CHECK(owner_ == (uintptr_t)pthread_self());
>> + owner_ = 0;
>> + pthread_mutex_unlock((pthread_mutex_t*)&opaque_storage_);
>> +}
>> +
>> } // namespace __asan
>>
>> #endif // __linux__
>>
>> Modified: compiler-rt/trunk/lib/asan/asan_lock.h
>> URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_lock.h?rev=147878&r1=147877&r2=147878&view=diff
>> ==============================================================================
>> --- compiler-rt/trunk/lib/asan/asan_lock.h (original)
>> +++ compiler-rt/trunk/lib/asan/asan_lock.h Tue Jan 10 15:24:40 2012
>> @@ -19,70 +19,21 @@
>> // The locks in ASan are global objects and they are never destroyed to avoid
>> // at-exit races (that is, a lock is being used by other threads while the main
>> // thread is doing atexit destructors).
>> +// We define the class using opaque storage to avoid including system headers.
>>
>> -#ifdef __APPLE__
>> -#include <pthread.h>
>> -
>> -#include <libkern/OSAtomic.h>
>> namespace __asan {
>> -class AsanLock {
>> - public:
>> - explicit AsanLock(LinkerInitialized) :
>> - mu_(OS_SPINLOCK_INIT),
>> - owner_(0),
>> - is_locked_(false) {}
>>
>> - void Lock() {
>> - CHECK(owner_ != pthread_self());
>> - OSSpinLockLock(&mu_);
>> - is_locked_ = true;
>> - owner_ = pthread_self();
>> - }
>> - void Unlock() {
>> - owner_ = 0;
>> - is_locked_ = false;
>> - OSSpinLockUnlock(&mu_);
>> - }
>> -
>> - bool IsLocked() {
>> - // This is not atomic, e.g. one thread may get different values if another
>> - // one is about to release the lock.
>> - return is_locked_;
>> - }
>> - private:
>> - OSSpinLock mu_;
>> - volatile pthread_t owner_; // for debugging purposes
>> - bool is_locked_; // for silly malloc_introspection_t interface
>> -};
>> -} // namespace __asan
>> -
>> -#else // assume linux
>> -#include <pthread.h>
>> -namespace __asan {
>> class AsanLock {
>> public:
>> - explicit AsanLock(LinkerInitialized) {
>> - // We assume that pthread_mutex_t initialized to all zeroes is a valid
>> - // unlocked mutex. We can not use PTHREAD_MUTEX_INITIALIZER as it triggers
>> - // a gcc warning:
>> - // extended initializer lists only available with -std=c++0x or -std=gnu++0x
>> - }
>> - void Lock() {
>> - pthread_mutex_lock(&mu_);
>> - // pthread_spin_lock(&mu_);
>> - }
>> - void Unlock() {
>> - pthread_mutex_unlock(&mu_);
>> - // pthread_spin_unlock(&mu_);
>> - }
>> + explicit AsanLock(LinkerInitialized);
>> + void Lock();
>> + void Unlock();
>> + bool IsLocked() { return owner_ != 0; }
>> private:
>> - pthread_mutex_t mu_;
>> - // pthread_spinlock_t mu_;
>> + uintptr_t opaque_storage_[10];
>> + uintptr_t owner_; // for debugging and for malloc_introspection_t interface
>> };
>> -} // namespace __asan
>> -#endif
>>
>> -namespace __asan {
>> class ScopedLock {
>> public:
>> explicit ScopedLock(AsanLock *mu) : mu_(mu) {
>>
>> Modified: compiler-rt/trunk/lib/asan/asan_mac.cc
>> URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_mac.cc?rev=147878&r1=147877&r2=147878&view=diff
>> ==============================================================================
>> --- compiler-rt/trunk/lib/asan/asan_mac.cc (original)
>> +++ compiler-rt/trunk/lib/asan/asan_mac.cc Tue Jan 10 15:24:40 2012
>> @@ -27,6 +27,7 @@
>> #include <pthread.h>
>> #include <fcntl.h>
>> #include <unistd.h>
>> +#include <libkern/OSAtomic.h>
>>
>> namespace __asan {
>>
>> @@ -130,6 +131,27 @@
>> CHECK(AddrIsInStack((uintptr_t)&local));
>> }
>>
>> +
>> +AsanLock::AsanLock(LinkerInitialized) {
>> + // We assume that OS_SPINLOCK_INIT is zero
>> +}
>> +
>> +void AsanLock::Lock() {
>> + CHECK(sizeof(OSSpinLock) <= sizeof(opaque_storage_));
>> + CHECK(OS_SPINLOCK_INIT == 0);
>> + CHECK(owner_ != (uintptr_t)pthread_self());
>> + OSSpinLockLock((OSSpinLock*)&opaque_storage_);
>> + CHECK(!owner_);
>> + owner_ = (uintptr_t)pthread_self();
>> +}
>> +
>> +void AsanLock::Unlock() {
>> + CHECK(owner_ == (uintptr_t)pthread_self());
>> + owner_ = 0;
>> + OSSpinLockUnlock((OSSpinLock*)&opaque_storage_);
>> +}
>> +
>> +
>> // Support for the following functions from libdispatch on Mac OS:
>> // dispatch_async_f()
>> // dispatch_async()
>>
>> Modified: compiler-rt/trunk/lib/asan/asan_thread_registry.cc
>> URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_thread_registry.cc?rev=147878&r1=147877&r2=147878&view=diff
>> ==============================================================================
>> --- compiler-rt/trunk/lib/asan/asan_thread_registry.cc (original)
>> +++ compiler-rt/trunk/lib/asan/asan_thread_registry.cc Tue Jan 10 15:24:40 2012
>> @@ -18,6 +18,7 @@
>> #include "asan_thread_registry.h"
>>
>> #include <limits.h>
>> +#include <pthread.h>
>>
>> namespace __asan {
>>
>>
>>
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>
>
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