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authorMaxim Ostapenko <m.ostapenko@samsung.com>2016-04-21 12:19:54 +0000
committerMaxim Ostapenko <chefmax@gcc.gnu.org>2016-04-21 15:19:54 +0300
commitfefddbef531cdb76ba2f64d14412230274edc29c (patch)
tree86e2a618afcde29289c3bef8c0129d1db3a35681 /libsanitizer
parentaef4aab0ccd07040e6471dfce538e2e8338a9ff8 (diff)
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Cherry-pick r266868 from upstream.
PR sanitizer/70624 * asan/asan_mac.cc: Cherry pick upstream r266868. From-SVN: r235338
Diffstat (limited to 'libsanitizer')
-rw-r--r--libsanitizer/ChangeLog5
-rw-r--r--libsanitizer/asan/asan_mac.cc6
2 files changed, 10 insertions, 1 deletions
diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
index c6cdc09..1268507 100644
--- a/libsanitizer/ChangeLog
+++ b/libsanitizer/ChangeLog
@@ -1,3 +1,8 @@
+2016-04-21 Maxim Ostapenko <m.ostapenko@samsung.com>
+
+ PR sanitizer/70624
+ * asan/asan_mac.cc: Cherry pick upstream r266868.
+
2016-01-19 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/68824
diff --git a/libsanitizer/asan/asan_mac.cc b/libsanitizer/asan/asan_mac.cc
index 20e37ff..ab3c656 100644
--- a/libsanitizer/asan/asan_mac.cc
+++ b/libsanitizer/asan/asan_mac.cc
@@ -97,10 +97,14 @@ void DisableReexec() {
reexec_disabled = true;
}
-extern "C" double dyldVersionNumber;
+extern "C" SANITIZER_WEAK_ATTRIBUTE double dyldVersionNumber;
static const double kMinDyldVersionWithAutoInterposition = 360.0;
bool DyldNeedsEnvVariable() {
+ // Although sanitizer support was added to LLVM on OS X 10.7+, GCC users
+ // still may want use them on older systems. On older Darwin platforms, dyld
+ // doesn't export dyldVersionNumber symbol and we simply return true.
+ if (!&dyldVersionNumber) return true;
// If running on OS X 10.11+ or iOS 9.0+, dyld will interpose even if
// DYLD_INSERT_LIBRARIES is not set. However, checking OS version via
// GetMacosVersion() doesn't work for the simulator. Let's instead check