[llvm-commits] [compiler-rt] r149944 - /compiler-rt/trunk/lib/asan/asan_linux.cc

[Kostya Serebryany]

Author: kcc
Date: Mon Feb  6 18:47:35 2012
New Revision: 149944

URL: http://llvm.org/viewvc/llvm-project?rev=149944&view=rev
Log:
[asan] don't crash if /proc/self/maps has enormous size (linux)

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=149944&r1=149943&r2=149944&view=diff
==============================================================================
--- compiler-rt/trunk/lib/asan/asan_linux.cc (original)
+++ compiler-rt/trunk/lib/asan/asan_linux.cc Mon Feb  6 18:47:35 2012
@@ -131,7 +131,7 @@
     inited = true;
     size_t environ_size;
     len = ReadFileToBuffer("/proc/self/environ",
-                           &environ, &environ_size, 1 << 20);
+                           &environ, &environ_size, 1 << 26);
   }
   if (!environ || len == 0) return NULL;
   size_t namelen = internal_strlen(name);
@@ -160,7 +160,7 @@
 AsanProcMaps::AsanProcMaps() {
   proc_self_maps_buff_len_ =
       ReadFileToBuffer("/proc/self/maps", &proc_self_maps_buff_,
-                       &proc_self_maps_buff_mmaped_size_, 1 << 20);
+                       &proc_self_maps_buff_mmaped_size_, 1 << 26);
   CHECK(proc_self_maps_buff_len_ > 0);
   // AsanWrite(2, proc_self_maps_buff_, proc_self_maps_buff_len_);
   Reset();