br toolchain: gcc4.x/5.x bugfix libsanitizer ppc

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+From patchwork Wed Feb  8 11:07:16 2017
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Subject: asan: fix missing include of signal.h
+From: Rolf Eike Beer <[email protected]>
+X-Patchwork-Id: 725596
+Message-Id: <6824253.3U2boEivI2@devpool21>
+To: gcc-patches at gcc.gnu.org
+Date: Wed, 08 Feb 2017 12:07:16 +0100
+
+>From 205aa8e97bab553e5e6fe45896325e97962de704 Mon Sep 17 00:00:00 2001
+From: Rolf Eike Beer <[email protected]>
+Date: Wed, 8 Feb 2017 11:42:52 +0100
+Subject: [PATCH] asan: fix missing include of signal.h
+
+This breaks when building gcc 4.9.4 / 5.4.0 with
+target_platform=powerpc-unknown-linux-gnu with glibc 2.25:
+
+../../../../gcc-host/libsanitizer/asan/asan_linux.cc: In function 'bool __asan::AsanInterceptsSignal(int)':
+../../../../gcc-host/libsanitizer/asan/asan_linux.cc:222:20: error: 'SIGSEGV' was not declared in this scope
+   return signum == SIGSEGV && common_flags()->handle_segv;
+
+This has been verified to apply to at least 4.9.4 and up to 5.4,
+the code has been reworked for gcc 6.
+
+Resolves (Buildroot) Bug: https://bugs.busybox.net/show_bug.cgi?id=10061
+
+Upstream: https://patchwork.ozlabs.org/patch/725596/
+
+Signed-off-by: Matthew Weber <[email protected]>
+---
+ libsanitizer/asan/asan_linux.cc | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libsanitizer/asan/asan_linux.cc b/libsanitizer/asan/asan_linux.cc
+index c504168..59087b9 100644
+--- a/libsanitizer/asan/asan_linux.cc
++++ b/libsanitizer/asan/asan_linux.cc
+@@ -29,6 +29,7 @@
+ #include <dlfcn.h>
+ #include <fcntl.h>
+ #include <pthread.h>
++#include <signal.h>
+ #include <stdio.h>
+ #include <unistd.h>
+ #include <unwind.h>

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