compiler-rt: Fix variadic macro warnings [-Wc++20-extensions]

They began complaining since #84520.

Author: chapuni

compiler-rt/lib/asan/asan_interceptors.cpp

@@ -761,8 +761,8 @@ INTERCEPTOR(int, pthread_atfork, void (*prepare)(), void (*parent)(),
 #endif
 
 #if ASAN_INTERCEPT_VFORK
-DEFINE_REAL(int, vfork)
-DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(int, vfork)
+DEFINE_REAL(int, vfork,)
+DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(int, vfork,)
 #endif
 
 // ---------------------- InitializeAsanInterceptors ---------------- {{{1

compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp

@@ -184,7 +184,7 @@ INTERCEPTOR_ALIAS(void *, malloc, SIZE_T size);
 INTERCEPTOR_ALIAS(void *, memalign, SIZE_T alignment, SIZE_T size);
 INTERCEPTOR_ALIAS(void *, pvalloc, SIZE_T size);
 INTERCEPTOR_ALIAS(void, cfree, void *ptr);
-INTERCEPTOR_ALIAS(__sanitizer_struct_mallinfo, mallinfo);
+INTERCEPTOR_ALIAS(__sanitizer_struct_mallinfo, mallinfo,);
 INTERCEPTOR_ALIAS(int, mallopt, int cmd, int value);
 INTERCEPTOR_ALIAS(void, malloc_stats, void);
 #  endif

compiler-rt/lib/hwasan/hwasan_interceptors.cpp

@@ -336,8 +336,8 @@ INTERCEPTOR(int, pthread_timedjoin_np, void *thread, void **ret,
 
 DEFINE_REAL_PTHREAD_FUNCTIONS
 
-DEFINE_REAL(int, vfork)
-DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(int, vfork)
+DEFINE_REAL(int, vfork,)
+DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(int, vfork,)
 
 // Get and/or change the set of blocked signals.
 extern "C" int sigprocmask(int __how, const __hw_sigset_t *__restrict __set,

compiler-rt/lib/msan/msan_interceptors.cpp

@@ -255,7 +255,7 @@ static NOINLINE void clear_mallinfo(T *sret) {
 #if !SANITIZER_FREEBSD && !SANITIZER_NETBSD
 // Interceptors use NRVO and assume that sret will be pre-allocated in
 // caller frame.
-INTERCEPTOR(__sanitizer_struct_mallinfo, mallinfo) {
+INTERCEPTOR(__sanitizer_struct_mallinfo, mallinfo,) {
   __sanitizer_struct_mallinfo sret;
   clear_mallinfo(&sret);
   return sret;

compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc

@@ -7650,9 +7650,9 @@ static void write_protoent(void *ctx, struct __sanitizer_protoent *p) {
   COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases, pp_size * sizeof(char *));
 }
 
-INTERCEPTOR(struct __sanitizer_protoent *, getprotoent) {
+INTERCEPTOR(struct __sanitizer_protoent *, getprotoent,) {
   void *ctx;
-  COMMON_INTERCEPTOR_ENTER(ctx, getprotoent);
+  COMMON_INTERCEPTOR_ENTER(ctx, getprotoent,);
   struct __sanitizer_protoent *p = REAL(getprotoent)();
   if (p)
     write_protoent(ctx, p);
@@ -7739,9 +7739,9 @@ INTERCEPTOR(int, getprotobynumber_r, int num,
 #endif
 
 #if SANITIZER_INTERCEPT_NETENT
-INTERCEPTOR(struct __sanitizer_netent *, getnetent) {
+INTERCEPTOR(struct __sanitizer_netent *, getnetent,) {
   void *ctx;
-  COMMON_INTERCEPTOR_ENTER(ctx, getnetent);
+  COMMON_INTERCEPTOR_ENTER(ctx, getnetent,);
   struct __sanitizer_netent *n = REAL(getnetent)();
   if (n) {
     COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
@@ -9903,9 +9903,9 @@ INTERCEPTOR(char *, fdevname_r,  int fd, char *buf, SIZE_T len) {
 #endif
 
 #if SANITIZER_INTERCEPT_GETUSERSHELL
-INTERCEPTOR(char *, getusershell) {
+INTERCEPTOR(char *, getusershell,) {
   void *ctx;
-  COMMON_INTERCEPTOR_ENTER(ctx, getusershell);
+  COMMON_INTERCEPTOR_ENTER(ctx, getusershell,);
   char *res = REAL(getusershell)();
   if (res)
     COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);

compiler-rt/lib/sanitizer_common/sanitizer_printf.cpp

@@ -54,7 +54,7 @@ static int AppendNumber(char **buff, const char *buff_end, u64 absolute_value,
   uptr num_buffer[kMaxLen];
   int pos = 0;
   do {
-    RAW_CHECK_MSG((uptr)pos < kMaxLen, "AppendNumber buffer overflow");
+    RAW_CHECK_MSG((uptr)pos < kMaxLen, "AppendNumber buffer overflow",);
     num_buffer[pos++] = absolute_value % base;
     absolute_value /= base;
   } while (absolute_value > 0);