[compiler-rt] r324496 - [asan] Fix filename size on linux platforms.

[Yvan Roux via llvm-commits]

Author: yroux
Date: Wed Feb  7 10:27:25 2018
New Revision: 324496

URL: http://llvm.org/viewvc/llvm-project?rev=324496&view=rev
Log:
[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

Modified:
    compiler-rt/trunk/lib/asan/asan_linux.cc

Modified: compiler-rt/trunk/lib/asan/asan_linux.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_linux.cc?rev=324496&r1=324495&r2=324496&view=diff
==============================================================================
--- compiler-rt/trunk/lib/asan/asan_linux.cc (original)
+++ compiler-rt/trunk/lib/asan/asan_linux.cc Wed Feb  7 10:27:25 2018
@@ -32,6 +32,7 @@
 #include <sys/types.h>
 #include <dlfcn.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <pthread.h>
 #include <stdio.h>
 #include <unistd.h>
@@ -214,7 +215,7 @@ 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)) {