diff options
Diffstat (limited to 'libsanitizer/interception/interception.h')
| -rw-r--r-- | libsanitizer/interception/interception.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/libsanitizer/interception/interception.h b/libsanitizer/interception/interception.h index 51505e1baa2..458928f14b1 100644 --- a/libsanitizer/interception/interception.h +++ b/libsanitizer/interception/interception.h @@ -120,19 +120,23 @@ const interpose_substitution substitution_##func_name[] \ # define DECLARE_WRAPPER(ret_type, func, ...) #elif defined(_WIN32) -# if defined(_DLL) // DLL CRT -# define WRAP(x) x -# define WRAPPER_NAME(x) #x -# define INTERCEPTOR_ATTRIBUTE -# else // Static CRT -# define WRAP(x) wrap_##x -# define WRAPPER_NAME(x) "wrap_"#x -# define INTERCEPTOR_ATTRIBUTE -# endif +# define WRAP(x) __asan_wrap_##x +# define WRAPPER_NAME(x) "__asan_wrap_"#x +# define INTERCEPTOR_ATTRIBUTE __declspec(dllexport) # define DECLARE_WRAPPER(ret_type, func, ...) \ extern "C" ret_type func(__VA_ARGS__); # define DECLARE_WRAPPER_WINAPI(ret_type, func, ...) \ extern "C" __declspec(dllimport) ret_type __stdcall func(__VA_ARGS__); +#elif defined(__FreeBSD__) +# define WRAP(x) __interceptor_ ## x +# define WRAPPER_NAME(x) "__interceptor_" #x +# define INTERCEPTOR_ATTRIBUTE __attribute__((visibility("default"))) +// FreeBSD's dynamic linker (incompliantly) gives non-weak symbols higher +// priority than weak ones so weak aliases won't work for indirect calls +// in position-independent (-fPIC / -fPIE) mode. +# define DECLARE_WRAPPER(ret_type, func, ...) \ + extern "C" ret_type func(__VA_ARGS__) \ + __attribute__((alias("__interceptor_" #func), visibility("default"))); #else # define WRAP(x) __interceptor_ ## x # define WRAPPER_NAME(x) "__interceptor_" #x |