[Sanitizers] Fix malloc_usable_size interceptions signatures for FreeBSD

[vitalybuka]

compiler-rt/lib/asan/asan_malloc_linux.cpp

120

why this makes a difference?

[devnexen]

compiler-rt/lib/asan/asan_malloc_linux.cpp

120

oh just matching freebsd's signature.

[vitalybuka]

Maybe then just keep as is to avoid new preprocessor branches?

[MaskRay]

This patch is unneeded. If the ABI matches (which ignores const), the difference has no impact to the generated code.

compiler-rt/lib/asan/asan_malloc_linux.cpp

 
 #if SANITIZER_INTERCEPT_ALIGNED_ALLOC
 INTERCEPTOR(void*, aligned_alloc, uptr boundary, uptr size) {
   GET_STACK_TRACE_MALLOC;
   return asan_aligned_alloc(boundary, size, &stack);
 }
 #endif // SANITIZER_INTERCEPT_ALIGNED_ALLOC
 
+#if !SANITIZER_FREEBSD
 INTERCEPTOR(uptr, malloc_usable_size, void *ptr) {
+#else
+INTERCEPTOR(uptr, malloc_usable_size, const void *ptr) {
+#endif
   GET_CURRENT_PC_BP_SP;
   (void)sp;
   return asan_malloc_usable_size(ptr, pc, bp);
 }
 
 #if SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
 // We avoid including malloc.h for portability reasons.
 // man mallinfo says the fields are "long", but the implementation uses int.

compiler-rt/lib/msan/msan_interceptors.cpp

INTERCEPTOR(void, cfree, void *ptr) {
   MsanDeallocate(&stack, ptr);
 }
 #  define MSAN_MAYBE_INTERCEPT_CFREE INTERCEPT_FUNCTION(cfree)
 #else
 #define MSAN_MAYBE_INTERCEPT_CFREE
 #endif
 
 #if !SANITIZER_NETBSD
+#if !SANITIZER_FREEBSD
 INTERCEPTOR(uptr, malloc_usable_size, void *ptr) {
+#else
+INTERCEPTOR(uptr, malloc_usable_size, const void *ptr) {
+#endif
   return __sanitizer_get_allocated_size(ptr);
 }
 #define MSAN_MAYBE_INTERCEPT_MALLOC_USABLE_SIZE \
   INTERCEPT_FUNCTION(malloc_usable_size)
 #else
 #define MSAN_MAYBE_INTERCEPT_MALLOC_USABLE_SIZE
 #endif