[asan] bump kMidMemEnd to 0x4fffffffffULL since in rare cases prelink uses addresses higher than 0x3fffffffff

llvm-svn: 176250

1 files changed, 6 insertions, 6 deletions

diff --git a/compiler-rt/lib/asan/asan_mapping.h b/compiler-rt/lib/asan/asan_mapping.h
index feaf3533851..161ab6535de 100644
--- a/compiler-rt/lib/asan/asan_mapping.h
+++ b/compiler-rt/lib/asan/asan_mapping.h
@@ -32,13 +32,13 @@
 // || `[0x000000040000, 0x01ffffffffff]` || ShadowGap  ||
 //
 // Special case when something is already mapped between
-// 0x003000000000 and 0x004000000000 (e.g. when prelink is installed):
+// 0x003000000000 and 0x005000000000 (e.g. when prelink is installed):
 // || `[0x10007fff8000, 0x7fffffffffff]` || HighMem    ||
 // || `[0x02008fff7000, 0x10007fff7fff]` || HighShadow ||
-// || `[0x004000000000, 0x02008fff6fff]` || ShadowGap3 ||
-// || `[0x003000000000, 0x003fffffffff]` || MidMem     ||
-// || `[0x00087fff8000, 0x002fffffffff]` || ShadowGap2 ||
-// || `[0x00067fff8000, 0x00087fff7fff]` || MidShadow  ||
+// || `[0x005000000000, 0x02008fff6fff]` || ShadowGap3 ||
+// || `[0x003000000000, 0x004fffffffff]` || MidMem     ||
+// || `[0x000a7fff8000, 0x002fffffffff]` || ShadowGap2 ||
+// || `[0x00067fff8000, 0x000a7fff7fff]` || MidShadow  ||
 // || `[0x00008fff7000, 0x00067fff7fff]` || ShadowGap  ||
 // || `[0x00007fff8000, 0x00008fff6fff]` || LowShadow  ||
 // || `[0x000000000000, 0x00007fff7fff]` || LowMem     ||
@@ -131,7 +131,7 @@ extern uptr AsanMappingProfile[];
 // difference between fixed and non-fixed mapping is below the noise level.
 static uptr kHighMemEnd = 0x7fffffffffffULL;
 static uptr kMidMemBeg =    0x3000000000ULL;
-static uptr kMidMemEnd =    0x3fffffffffULL;
+static uptr kMidMemEnd =    0x4fffffffffULL;
 #else
 SANITIZER_INTERFACE_ATTRIBUTE
 extern uptr kHighMemEnd, kMidMemBeg, kMidMemEnd;  // Initialized in __asan_init.