[asan] Define mallopt and mallinfo for Fuchsia asan runtime

Author: PiJoules

compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h

@@ -129,8 +129,10 @@ SANITIZER_WEAK_IMPORT void *aligned_alloc(__sanitizer::usize __alignment,
 
 #if SANITIZER_FUCHSIA
 #define SI_NOT_FUCHSIA 0
+#define SI_FUCHSIA 1
 #else
 #define SI_NOT_FUCHSIA 1
+#define SI_FUCHSIA 0
 #endif
 
 #if SANITIZER_SOLARIS
@@ -521,7 +523,8 @@ SANITIZER_WEAK_IMPORT void *aligned_alloc(__sanitizer::usize __alignment,
 
 #define SANITIZER_INTERCEPT_MMAP SI_POSIX
 #define SANITIZER_INTERCEPT_MMAP64 SI_GLIBC || SI_SOLARIS
-#define SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO (SI_GLIBC || SI_ANDROID)
+#define SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO \
+  (SI_GLIBC || SI_ANDROID || SI_FUCHSIA)
 #define SANITIZER_INTERCEPT_MEMALIGN (!SI_FREEBSD && !SI_MAC && !SI_NETBSD)
 #define SANITIZER_INTERCEPT___LIBC_MEMALIGN SI_GLIBC
 #define SANITIZER_INTERCEPT_PVALLOC (SI_GLIBC || SI_ANDROID)