diff options
3 files changed, 31 insertions, 2 deletions
diff --git a/compiler-rt/lib/sanitizer_common/CMakeLists.txt b/compiler-rt/lib/sanitizer_common/CMakeLists.txt index e62b24544e5..749c71a74ca 100644 --- a/compiler-rt/lib/sanitizer_common/CMakeLists.txt +++ b/compiler-rt/lib/sanitizer_common/CMakeLists.txt @@ -3,6 +3,7 @@ set(SANITIZER_SOURCES_NOTERMINATION sanitizer_allocator.cc + sanitizer_allocator_checks.cc sanitizer_common.cc sanitizer_deadlock_detector1.cc sanitizer_deadlock_detector2.cc diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.cc b/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.cc new file mode 100644 index 00000000000..dc263dbef5f --- /dev/null +++ b/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.cc @@ -0,0 +1,23 @@ +//===-- sanitizer_allocator_checks.cc ---------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Various checks shared between ThreadSanitizer, MemorySanitizer, etc. memory +// allocators. +// +//===----------------------------------------------------------------------===// + +#include "sanitizer_errno.h" + +namespace __sanitizer { + +void SetErrnoToENOMEM() { + errno = errno_ENOMEM; +} + +} // namespace __sanitizer diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.h b/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.h index b72f541a494..b61a8b2eb3b 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.h +++ b/compiler-rt/lib/sanitizer_common/sanitizer_allocator_checks.h @@ -15,17 +15,22 @@ #ifndef SANITIZER_ALLOCATOR_CHECKS_H #define SANITIZER_ALLOCATOR_CHECKS_H -#include "sanitizer_errno.h" #include "sanitizer_internal_defs.h" #include "sanitizer_common.h" #include "sanitizer_platform.h" namespace __sanitizer { +// The following is defined in a separate compilation unit to avoid pulling in +// sanitizer_errno.h in this header, which leads to conflicts when other system +// headers include errno.h. This is usually the result of an unlikely event, +// and as such we do not care as much about having it inlined. +void SetErrnoToENOMEM(); + // A common errno setting logic shared by almost all sanitizer allocator APIs. INLINE void *SetErrnoOnNull(void *ptr) { if (UNLIKELY(!ptr)) - errno = errno_ENOMEM; + SetErrnoToENOMEM(); return ptr; } |
