From d2d5bdae89bcbfdd76b3c986d853ab90f2c26ceb Mon Sep 17 00:00:00 2001
From: Yvan Roux <yvan.roux@linaro.org>
Date: Wed, 7 Feb 2018 18:27:25 +0000
Subject: [asan] Fix filename size on linux platforms.

This is a a fix for:
https://bugs.llvm.org/show_bug.cgi?id=35996

Use filename limits from system headers to be synchronized with what
LD_PRELOAD can handle.

Differential Revision: https://reviews.llvm.org/D42900

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@324496 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/asan/asan_linux.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/asan/asan_linux.cc b/lib/asan/asan_linux.cc
index c7c04af03..1c1174813 100644
--- a/lib/asan/asan_linux.cc
+++ b/lib/asan/asan_linux.cc
@@ -31,6 +31,7 @@
 #include <sys/types.h>
 #include <dlfcn.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <pthread.h>
 #include <stdio.h>
 #include <unistd.h>
@@ -200,7 +201,7 @@ void AsanCheckIncompatibleRT() {
       // the functions in dynamic ASan runtime instead of the functions in
       // system libraries, causing crashes later in ASan initialization.
       MemoryMappingLayout proc_maps(/*cache_enabled*/true);
-      char filename[128];
+      char filename[PATH_MAX];
       MemoryMappedSegment segment(filename, sizeof(filename));
       while (proc_maps.Next(&segment)) {
         if (IsDynamicRTName(segment.filename)) {
-- 
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