[sancov] common flags initialization.

Summary:
Introducing InitializeCommonFlags accross all sanitizers to simplify
common flags management.

Setting coverage=1 when html_cov_report is requested.

Differential Revision: http://reviews.llvm.org/D18273

llvm-svn: 263820

compiler-rt/lib/asan/asan_activation.cc

@@ -61,7 +61,7 @@ static struct AsanDeactivatedFlags {
       parser.ParseString(env);
     }
 
-    SetVerbosity(cf.verbosity);
+    InitializeCommonFlags(&cf);
 
     if (Verbosity()) ReportUnrecognizedFlags();
 

compiler-rt/lib/asan/asan_flags.cc

@@ -116,7 +116,7 @@ void InitializeFlags() {
   ubsan_parser.ParseString(GetEnv("UBSAN_OPTIONS"));
 #endif
 
-  SetVerbosity(common_flags()->verbosity);
+  InitializeCommonFlags();
 
   // TODO(eugenis): dump all flags at verbosity>=2?
   if (Verbosity()) ReportUnrecognizedFlags();

compiler-rt/lib/cfi/cfi.cc

@@ -343,7 +343,7 @@ void InitializeFlags() {
   ubsan_parser.ParseString(GetEnv("UBSAN_OPTIONS"));
 #endif
 
-  SetVerbosity(common_flags()->verbosity);
+  InitializeCommonFlags();
 
   if (Verbosity())
     ReportUnrecognizedFlags();

compiler-rt/lib/dfsan/dfsan.cc

@@ -362,7 +362,7 @@ static void InitializeFlags() {
   RegisterCommonFlags(&parser);
   RegisterDfsanFlags(&parser, &flags());
   parser.ParseString(GetEnv("DFSAN_OPTIONS"));
-  SetVerbosity(common_flags()->verbosity);
+  InitializeCommonFlags();
   if (Verbosity()) ReportUnrecognizedFlags();
   if (common_flags()->help) parser.PrintFlagDescriptions();
 }

compiler-rt/lib/msan/msan.cc

@@ -178,7 +178,7 @@ static void InitializeFlags() {
 #endif
   VPrintf(1, "MSAN_OPTIONS: %s\n", msan_options ? msan_options : "<empty>");
 
-  SetVerbosity(common_flags()->verbosity);
+  InitializeCommonFlags();
 
   if (Verbosity()) ReportUnrecognizedFlags();
 

compiler-rt/lib/sanitizer_common/sanitizer_flags.cc

@@ -126,4 +126,10 @@ void RegisterCommonFlags(FlagParser *parser, CommonFlags *cf) {
   RegisterIncludeFlags(parser, cf);
 }
 
+void InitializeCommonFlags(CommonFlags *cf) {
+  // need to record coverage to generate coverage report.
+  cf->coverage |= cf->html_cov_report;
+  SetVerbosity(cf->verbosity);
+}
+
 }  // namespace __sanitizer

compiler-rt/lib/sanitizer_common/sanitizer_flags.h

@@ -52,6 +52,11 @@ class FlagParser;
 void RegisterCommonFlags(FlagParser *parser,
                          CommonFlags *cf = &common_flags_dont_use);
 void RegisterIncludeFlags(FlagParser *parser, CommonFlags *cf);
+
+// Should be called after parsing all flags. Sets up common flag values
+// and perform initializations common to all sanitizers (e.g. setting
+// verbosity).
+void InitializeCommonFlags(CommonFlags *cf = &common_flags_dont_use);
 }  // namespace __sanitizer
 
 #endif  // SANITIZER_FLAGS_H

compiler-rt/lib/tsan/rtl/tsan_flags.cc

@@ -108,7 +108,7 @@ void InitializeFlags(Flags *f, const char *env) {
     f->report_signal_unsafe = false;
   }
 
-  SetVerbosity(common_flags()->verbosity);
+  InitializeCommonFlags();
 
   if (Verbosity()) ReportUnrecognizedFlags();
 

compiler-rt/lib/ubsan/ubsan_flags.cc

@@ -59,7 +59,7 @@ void InitializeFlags() {
   parser.ParseString(MaybeCallUbsanDefaultOptions());
   // Override from environment variable.
   parser.ParseString(GetEnv("UBSAN_OPTIONS"));
-  SetVerbosity(common_flags()->verbosity);
+  InitializeCommonFlags();
   if (Verbosity()) ReportUnrecognizedFlags();
 
   if (common_flags()->help) parser.PrintFlagDescriptions();