diff options
Diffstat (limited to 'libsanitizer/asan/asan_new_delete.cc')
| -rw-r--r-- | libsanitizer/asan/asan_new_delete.cc | 74 |
1 files changed, 49 insertions, 25 deletions
diff --git a/libsanitizer/asan/asan_new_delete.cc b/libsanitizer/asan/asan_new_delete.cc index beac8cdbdd..9d6660ec7b 100644 --- a/libsanitizer/asan/asan_new_delete.cc +++ b/libsanitizer/asan/asan_new_delete.cc @@ -14,20 +14,21 @@ #include "asan_internal.h" #include "asan_stack.h" +#include "sanitizer_common/sanitizer_interception.h" + #include <stddef.h> -namespace __asan { -// This function is a no-op. We need it to make sure that object file -// with our replacements will actually be loaded from static ASan -// run-time library at link-time. -void ReplaceOperatorsNewAndDelete() { } -} +// C++ operators can't have visibility attributes on Windows. +#if SANITIZER_WINDOWS +# define CXX_OPERATOR_ATTRIBUTE +#else +# define CXX_OPERATOR_ATTRIBUTE INTERCEPTOR_ATTRIBUTE +#endif using namespace __asan; // NOLINT -// On Android new() goes through malloc interceptors. -// See also https://code.google.com/p/address-sanitizer/issues/detail?id=131. -#if !SANITIZER_ANDROID +// This code has issues on OSX. +// See https://code.google.com/p/address-sanitizer/issues/detail?id=131. // Fake std::nothrow_t to avoid including <new>. namespace std { @@ -46,14 +47,23 @@ struct nothrow_t {}; // To make sure that C++ allocation/deallocation operators are overridden on // OS X we need to intercept them using their mangled names. #if !SANITIZER_MAC -INTERCEPTOR_ATTRIBUTE +// FreeBSD prior v9.2 have wrong definition of 'size_t'. +// http://svnweb.freebsd.org/base?view=revision&revision=232261 +#if SANITIZER_FREEBSD && SANITIZER_WORDSIZE == 32 +#include <sys/param.h> +#if __FreeBSD_version <= 902001 // v9.2 +#define size_t unsigned +#endif // __FreeBSD_version +#endif // SANITIZER_FREEBSD && SANITIZER_WORDSIZE == 32 + +CXX_OPERATOR_ATTRIBUTE void *operator new(size_t size) { OPERATOR_NEW_BODY(FROM_NEW); } -INTERCEPTOR_ATTRIBUTE +CXX_OPERATOR_ATTRIBUTE void *operator new[](size_t size) { OPERATOR_NEW_BODY(FROM_NEW_BR); } -INTERCEPTOR_ATTRIBUTE +CXX_OPERATOR_ATTRIBUTE void *operator new(size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY(FROM_NEW); } -INTERCEPTOR_ATTRIBUTE +CXX_OPERATOR_ATTRIBUTE void *operator new[](size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY(FROM_NEW_BR); } @@ -77,16 +87,32 @@ INTERCEPTOR(void *, _ZnamRKSt9nothrow_t, size_t size, std::nothrow_t const&) { asan_free(ptr, &stack, type); #if !SANITIZER_MAC -INTERCEPTOR_ATTRIBUTE -void operator delete(void *ptr) { OPERATOR_DELETE_BODY(FROM_NEW); } -INTERCEPTOR_ATTRIBUTE -void operator delete[](void *ptr) { OPERATOR_DELETE_BODY(FROM_NEW_BR); } -INTERCEPTOR_ATTRIBUTE -void operator delete(void *ptr, std::nothrow_t const&) -{ OPERATOR_DELETE_BODY(FROM_NEW); } -INTERCEPTOR_ATTRIBUTE -void operator delete[](void *ptr, std::nothrow_t const&) -{ OPERATOR_DELETE_BODY(FROM_NEW_BR); } +CXX_OPERATOR_ATTRIBUTE +void operator delete(void *ptr) throw() { + OPERATOR_DELETE_BODY(FROM_NEW); +} +CXX_OPERATOR_ATTRIBUTE +void operator delete[](void *ptr) throw() { + OPERATOR_DELETE_BODY(FROM_NEW_BR); +} +CXX_OPERATOR_ATTRIBUTE +void operator delete(void *ptr, std::nothrow_t const&) { + OPERATOR_DELETE_BODY(FROM_NEW); +} +CXX_OPERATOR_ATTRIBUTE +void operator delete[](void *ptr, std::nothrow_t const&) { + OPERATOR_DELETE_BODY(FROM_NEW_BR); +} +CXX_OPERATOR_ATTRIBUTE +void operator delete(void *ptr, size_t size) throw() { + GET_STACK_TRACE_FREE; + asan_sized_free(ptr, size, &stack, FROM_NEW); +} +CXX_OPERATOR_ATTRIBUTE +void operator delete[](void *ptr, size_t size) throw() { + GET_STACK_TRACE_FREE; + asan_sized_free(ptr, size, &stack, FROM_NEW_BR); +} #else // SANITIZER_MAC INTERCEPTOR(void, _ZdlPv, void *ptr) { @@ -102,5 +128,3 @@ INTERCEPTOR(void, _ZdaPvRKSt9nothrow_t, void *ptr, std::nothrow_t const&) { OPERATOR_DELETE_BODY(FROM_NEW_BR); } #endif - -#endif |