150 # define DECLARE_WRAPPER(ret_type, func, ...)  argument
156 # define DECLARE_WRAPPER(ret_type, func, ...)         \  argument
157     extern "C" ret_type func(__VA_ARGS__);
158 # define DECLARE_WRAPPER_WINAPI(ret_type, func, ...)  \  argument
159     extern "C" __declspec(dllimport) ret_type __stdcall func(__VA_ARGS__);
184 #   define __ASM_WEAK_WRAPPER(func) ".globl " #func "\n"  argument
186 #   define __ASM_WEAK_WRAPPER(func) ".weak " #func "\n"  argument
194 #  define DECLARE_WRAPPER(ret_type, func, ...)                                 \  argument
195      extern "C" ret_type func(__VA_ARGS__);                                    \
196      extern "C" ret_type TRAMPOLINE(func)(__VA_ARGS__);                        \
197      extern "C" ret_type __interceptor_##func(__VA_ARGS__)                     \
198        INTERCEPTOR_ATTRIBUTE __attribute__((weak)) ALIAS(WRAP(func));          \
201        __ASM_WEAK_WRAPPER(func)                                                \
202        ".set " #func ", " SANITIZER_STRINGIFY(TRAMPOLINE(func)) "\n"           \
203        ".globl " SANITIZER_STRINGIFY(TRAMPOLINE(func)) "\n"                    \
204        ".type  " SANITIZER_STRINGIFY(TRAMPOLINE(func)) ", "                    \
206        SANITIZER_STRINGIFY(TRAMPOLINE(func)) ":\n"                             \
208        C_ASM_TAIL_CALL(SANITIZER_STRINGIFY(TRAMPOLINE(func)),                  \
210                          SANITIZER_STRINGIFY(ASM_PREEMPTIBLE_SYM(func))) "\n"  \
212        ".size  " SANITIZER_STRINGIFY(TRAMPOLINE(func)) ", "                    \
213             ".-" SANITIZER_STRINGIFY(TRAMPOLINE(func)) "\n"                    \
229 #  define DECLARE_WRAPPER(ret_type, func, ...)                                 \  argument
230      extern "C" ret_type func(__VA_ARGS__)                                     \
231        INTERCEPTOR_ATTRIBUTE __ATTRIBUTE_WEAK_WRAPPER ALIAS(WRAP(func));
242 # define DECLARE_REAL(ret_type, func, ...)  argument
248 # define DECLARE_REAL(ret_type, func, ...)            \  argument
249     typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__); \
251     extern FUNC_TYPE(func) PTR_TO_REAL(func);         \
256 # define DECLARE_REAL(ret_type, func, ...) \  argument
257     extern "C" ret_type func(__VA_ARGS__);
262 # define DECLARE_REAL_AND_INTERCEPTOR(ret_type, func, ...)  \  argument
263     DECLARE_REAL(ret_type, func, __VA_ARGS__)               \
264     extern "C" ret_type TRAMPOLINE(func)(__VA_ARGS__);      \
265     extern "C" ret_type WRAP(func)(__VA_ARGS__);
268 # define DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(ret_type, func, ...)  \  argument
269     extern "C" ret_type TRAMPOLINE(func)(__VA_ARGS__);                \
270     extern "C" ret_type WRAP(func)(__VA_ARGS__);                      \
271     extern "C" ret_type func(__VA_ARGS__);
273 # define DECLARE_REAL_AND_INTERCEPTOR(ret_type, func, ...)  argument
274 # define DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(ret_type, func, ...)  argument
282 #  define DEFINE_REAL(ret_type, func, ...)            \  argument
283     typedef ret_type (*FUNC_TYPE(func))(__VA_ARGS__); \
285     FUNC_TYPE(func) PTR_TO_REAL(func);                \
288 # define DEFINE_REAL(ret_type, func, ...)  argument
296 #define INTERCEPTOR(ret_type, func, ...)                                \  argument
297   extern "C"[[ gnu::alias(#func), gnu::visibility("hidden") ]] ret_type \
298       __interceptor_##func(__VA_ARGS__);                                \
299   extern "C" INTERCEPTOR_ATTRIBUTE ret_type func(__VA_ARGS__)
303 #define INTERCEPTOR(ret_type, func, ...)        \  argument
304   DEFINE_REAL(ret_type, func, __VA_ARGS__)      \
305   DECLARE_WRAPPER(ret_type, func, __VA_ARGS__)  \
306   extern "C" INTERCEPTOR_ATTRIBUTE ret_type WRAP(func)(__VA_ARGS__)
309 #define INTERCEPTOR_WITH_SUFFIX(ret_type, func, ...) \  argument
310   INTERCEPTOR(ret_type, func, __VA_ARGS__)
314 #define INTERCEPTOR_ZZZ(suffix, ret_type, func, ...)  \  argument
315   extern "C" ret_type func(__VA_ARGS__) suffix;       \
316   extern "C" ret_type WRAP(func)(__VA_ARGS__);        \
317   INTERPOSER(func);                                   \
318   extern "C" INTERCEPTOR_ATTRIBUTE ret_type WRAP(func)(__VA_ARGS__)
320 #define INTERCEPTOR(ret_type, func, ...) \  argument
321   INTERCEPTOR_ZZZ(/*no symbol variants*/, ret_type, func, __VA_ARGS__)
323 #define INTERCEPTOR_WITH_SUFFIX(ret_type, func, ...) \  argument
324   INTERCEPTOR_ZZZ(__DARWIN_ALIAS_C(func), ret_type, func, __VA_ARGS__)
332 # define INTERCEPTOR_WINAPI(ret_type, func, ...)                \  argument
333     typedef ret_type (__stdcall *FUNC_TYPE(func))(__VA_ARGS__); \
335       FUNC_TYPE(func) PTR_TO_REAL(func);                        \
337     extern "C" INTERCEPTOR_ATTRIBUTE ret_type __stdcall WRAP(func)(__VA_ARGS__)
371 # define INTERCEPT_FUNCTION(func) INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func)  argument
372 # define INTERCEPT_FUNCTION_VER(func, symver) \  argument
373     INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver)
376 # define INTERCEPT_FUNCTION(func) INTERCEPT_FUNCTION_MAC(func)  argument
377 # define INTERCEPT_FUNCTION_VER(func, symver) \  argument
378     INTERCEPT_FUNCTION_VER_MAC(func, symver)
381 # define INTERCEPT_FUNCTION(func) INTERCEPT_FUNCTION_WIN(func)  argument
382 # define INTERCEPT_FUNCTION_VER(func, symver) \  argument
383     INTERCEPT_FUNCTION_VER_WIN(func, symver)