[PATCH] D18431: [tsan] Use direct syscalls for internal_mmap and internal_munmap on OS X
Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Mar 24 04:55:39 PDT 2016
This revision was automatically updated to reflect the committed changes.
Closed by commit rL264259: [tsan] Use direct syscalls for internal_mmap and internal_munmap on OS X (authored by kuba.brecka).
Changed prior to commit:
http://reviews.llvm.org/D18431?vs=51518&id=51537#toc
Repository:
rL LLVM
http://reviews.llvm.org/D18431
Files:
compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
compiler-rt/trunk/test/tsan/Darwin/malloc-stack-logging.cc
Index: compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
===================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
@@ -82,15 +82,20 @@
#include "sanitizer_syscall_generic.inc"
+// Direct syscalls, don't call libmalloc hooks.
+extern "C" void *__mmap(void *addr, size_t len, int prot, int flags, int fildes,
+ off_t off);
+extern "C" int __munmap(void *, size_t);
+
// ---------------------- sanitizer_libc.h
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);
- return (uptr)mmap(addr, length, prot, flags, fd, offset);
+ return (uptr)__mmap(addr, length, prot, flags, fd, offset);
}
uptr internal_munmap(void *addr, uptr length) {
- return munmap(addr, length);
+ return __munmap(addr, length);
}
int internal_mprotect(void *addr, uptr length, int prot) {
Index: compiler-rt/trunk/test/tsan/Darwin/malloc-stack-logging.cc
===================================================================
--- compiler-rt/trunk/test/tsan/Darwin/malloc-stack-logging.cc
+++ compiler-rt/trunk/test/tsan/Darwin/malloc-stack-logging.cc
@@ -0,0 +1,19 @@
+// RUN: %clangxx_tsan -O1 %s -o %t
+// RUN: MallocStackLogging=1 %run %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+void *foo(void *p) {
+ return NULL;
+}
+
+int main() {
+ pthread_t t;
+ pthread_create(&t, NULL, foo, NULL);
+ pthread_join(t, NULL);
+ fprintf(stderr, "Done.\n");
+ return 0;
+}
+
+// CHECK: Done.
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