On Darwin switch from the `VM_MEMORY_ANALYSIS_TOOL` VM tag to
`VM_MEMORY_SANITIZER`.
It turns out that `VM_MEMORY_ANALYSIS_TOOL` is already reserved for
use by other tools so switch to a tag reserved for use by the Sanitizers.
rdar://problem/41969783
@@ -102,9 +102,15 @@ extern "C" void *__mmap(void *addr, size_t len, int prot, int flags, int fildes,
extern "C" int __munmap(void *, size_t) SANITIZER_WEAK_ATTRIBUTE;
// ---------------------- sanitizer_libc.h
+
+// From <mach/vm_statistics.h>, but not on older OSs.
+#ifndef VM_MEMORY_SANITIZER
+#define VM_MEMORY_SANITIZER 99
+#endif
+
uptr internal_mmap(void *addr, size_t length, int prot, int flags,
int fd, u64 offset) {
- if (fd == -1) fd = VM_MAKE_TAG(VM_MEMORY_ANALYSIS_TOOL);
+ if (fd == -1) fd = VM_MAKE_TAG(VM_MEMORY_SANITIZER);
if (&__mmap) return (uptr)__mmap(addr, length, prot, flags, fd, offset);
return (uptr)mmap(addr, length, prot, flags, fd, offset);
}
