[src/trunk]: src/external/gpl3/gcc/dist/libsanitizer/sanitizer_common avoid r...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6d9ee156b0b4
branches:  trunk
changeset: 975858:6d9ee156b0b4
user:      mrg <mrg%NetBSD.org@localhost>
date:      Mon Sep 07 07:10:43 2020 +0000

description:
avoid returning stack garbage on platforms that don't have either
__lwp_gettcb_fast() or __lwp_getprivate_fast().

diffstat:

 external/gpl3/gcc/dist/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc |  2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diffs (12 lines):

diff -r 3f34b2588226 -r 6d9ee156b0b4 external/gpl3/gcc/dist/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc
--- a/external/gpl3/gcc/dist/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc   Mon Sep 07 07:08:34 2020 +0000
+++ b/external/gpl3/gcc/dist/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc   Mon Sep 07 07:10:43 2020 +0000
@@ -417,7 +417,7 @@
 
 #if SANITIZER_NETBSD
 static struct tls_tcb * ThreadSelfTlsTcb() {
-  struct tls_tcb * tcb;
+  struct tls_tcb * tcb = NULL;
 # ifdef __HAVE___LWP_GETTCB_FAST
   tcb = (struct tls_tcb *)__lwp_gettcb_fast();
 # elif defined(__HAVE___LWP_GETPRIVATE_FAST)