[PATCH] D39888: [Sanitizers, LSan, Darwin] Allow for lack of VM_MEMORY_OS_ALLOC_ONCE
Rainer Orth via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jan 12 08:54:52 PST 2018
ro updated this revision to Diff 129638.
ro added a comment.
Reworked according to review comments.
Tested (inside the gcc tree) on x86_64-apple-darwin11.4.2.
Repository:
rCRT Compiler Runtime
https://reviews.llvm.org/D39888
Files:
lib/lsan/lsan_common_mac.cc
Index: lib/lsan/lsan_common_mac.cc
===================================================================
--- lib/lsan/lsan_common_mac.cc
+++ lib/lsan/lsan_common_mac.cc
@@ -24,6 +24,13 @@
#include <mach/mach.h>
+// Only introduced in Mac OS X 10.9.
+#ifdef VM_MEMORY_OS_ALLOC_ONCE
+static const int kSanitizerVmMemoryOsAllocOnce = VM_MEMORY_OS_ALLOC_ONCE;
+#else
+static const int kSanitizerVmMemoryOsAllocOnce = 73;
+#endif
+
namespace __lsan {
typedef struct {
@@ -157,7 +164,7 @@
// libxpc stashes some pointers in the Kernel Alloc Once page,
// make sure not to report those as leaks.
- if (info.user_tag == VM_MEMORY_OS_ALLOC_ONCE) {
+ if (info.user_tag == kSanitizerVmMemoryOsAllocOnce) {
ScanRangeForPointers(address, end_address, frontier, "GLOBAL",
kReachable);
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