[esan] Add custom flag support

Summary:
Adds custom flag support to EfficiencySanitizer's runtime library.

Adds an initial flag cache_line_size which will be used by multiple tools.

Reviewers: aizatsky, vitalybuka

Subscribers: llvm-commits, eugenis, kcc, zhaoqin, aizatsky, kubabrecka

Differential Revision: http://reviews.llvm.org/D20478

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@270256 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 17 deletions

diff --git a/lib/esan/esan.cpp b/lib/esan/esan.cpp
index e16eea716..1499895eb 100644
--- a/lib/esan/esan.cpp
+++ b/lib/esan/esan.cpp
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "esan.h"
+#include "esan_flags.h"
 #include "esan_interface_internal.h"
 #include "esan_shadow.h"
 #include "sanitizer_common/sanitizer_common.h"
@@ -30,8 +31,6 @@ bool EsanIsInitialized;
 ToolType WhichTool;
 ShadowMapping Mapping;
 
-static const char EsanOptsEnv[] = "ESAN_OPTIONS";
-
 // We are combining multiple performance tuning tools under the umbrella of
 // one EfficiencySanitizer super-tool.  Most of our tools have very similar
 // memory access instrumentation, shadow memory mapping, libc interception,
@@ -142,21 +141,6 @@ static void initializeShadow() {
   }
 }
 
-static void initializeFlags() {
-  // Once we add our own flags we'll parse them here.
-  // For now the common ones are sufficient.
-  FlagParser Parser;
-  SetCommonFlagsDefaults();
-  RegisterCommonFlags(&Parser);
-  Parser.ParseString(GetEnv(EsanOptsEnv));
-  InitializeCommonFlags();
-  if (Verbosity())
-    ReportUnrecognizedFlags();
-  if (common_flags()->help)
-    Parser.PrintFlagDescriptions();
-  __sanitizer_set_report_path(common_flags()->log_path);
-}
-
 void initializeLibrary(ToolType Tool) {
   // We assume there is only one thread during init.
   if (EsanIsInitialized) {