[asan] Fix unused variable warning.

llvm-svn: 212272
2014-07-03 14:14:59 +00:00 · 2014-07-03 14:14:59 +00:00 · 7c2d32bf87
parent 71b982b41f
commit 7c2d32bf87
1 changed files with 1 additions and 1 deletions
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cc
@ -302,11 +302,11 @@ void InitTlsSize() {
 static atomic_uintptr_t kThreadDescriptorSize;

 uptr ThreadDescriptorSize() {
-  char buf[64];
  uptr val = atomic_load(&kThreadDescriptorSize, memory_order_relaxed);
  if (val)
    return val;
 #ifdef _CS_GNU_LIBC_VERSION
+  char buf[64];
  uptr len = confstr(_CS_GNU_LIBC_VERSION, buf, sizeof(buf));
  if (len < sizeof(buf) && internal_strncmp(buf, "glibc 2.", 8) == 0) {
    char *end;