[sanitizer] Move log_path to common flag and use it in MSan.

llvm-svn: 184836

compiler-rt/lib/asan/asan_flags.h

@@ -93,8 +93,6 @@ struct Flags {
   // but also thread creation stacks for threads that created those threads,
   // etc. up to main thread.
   bool print_full_thread_history;
-  // ASan will write logs to "log_path.pid" instead of stderr.
-  const char *log_path;
   // Poison (or not) the heap memory on [de]allocation. Zero value is useful
   // for benchmarking the allocator or instrumentator.
   bool poison_heap;

compiler-rt/lib/asan/asan_rtl.cc

@@ -119,7 +119,6 @@ static void ParseFlagsFromString(Flags *f, const char *str) {
   ParseFlag(str, &f->disable_core, "disable_core");
   ParseFlag(str, &f->allow_reexec, "allow_reexec");
   ParseFlag(str, &f->print_full_thread_history, "print_full_thread_history");
-  ParseFlag(str, &f->log_path, "log_path");
   ParseFlag(str, &f->poison_heap, "poison_heap");
   ParseFlag(str, &f->alloc_dealloc_mismatch, "alloc_dealloc_mismatch");
   ParseFlag(str, &f->use_stack_depot, "use_stack_depot");
@@ -137,6 +136,7 @@ void InitializeFlags(Flags *f, const char *env) {
   cf->fast_unwind_on_malloc = true;
   cf->strip_path_prefix = "";
   cf->handle_ioctl = false;
+  cf->log_path = 0;
 
   internal_memset(f, 0, sizeof(*f));
   f->quarantine_size = (ASAN_LOW_MEMORY) ? 1UL << 26 : 1UL << 28;
@@ -166,7 +166,6 @@ void InitializeFlags(Flags *f, const char *env) {
   f->disable_core = (SANITIZER_WORDSIZE == 64);
   f->allow_reexec = true;
   f->print_full_thread_history = true;
-  f->log_path = 0;
   f->poison_heap = true;
   // Turn off alloc/dealloc mismatch checker on Mac for now.
   // TODO(glider): Fix known issues and enable this back.
@@ -464,7 +463,7 @@ void __asan_init() {
   // initialization steps look at flags().
   const char *options = GetEnv("ASAN_OPTIONS");
   InitializeFlags(flags(), options);
-  __sanitizer_set_report_path(flags()->log_path);
+  __sanitizer_set_report_path(common_flags()->log_path);
 
   if (flags()->verbosity && options) {
     Report("Parsed ASAN_OPTIONS: %s\n", options);

compiler-rt/lib/msan/msan.cc

@@ -141,6 +141,7 @@ static void InitializeFlags(Flags *f, const char *options) {
   cf->fast_unwind_on_malloc = true;
   cf->malloc_context_size = 20;
   cf->handle_ioctl = true;
+  cf->log_path = 0;
 
   internal_memset(f, 0, sizeof(*f));
   f->poison_heap_with_zeroes = false;
@@ -258,6 +259,7 @@ void __msan_init() {
     ReplaceOperatorsNewAndDelete();
   const char *msan_options = GetEnv("MSAN_OPTIONS");
   InitializeFlags(&msan_flags, msan_options);
+  __sanitizer_set_report_path(common_flags()->log_path);
   if (StackSizeIsUnlimited()) {
     if (flags()->verbosity)
       Printf("Unlimited stack, doing reexec\n");

compiler-rt/lib/sanitizer_common/sanitizer_flags.cc

@@ -28,6 +28,7 @@ void ParseCommonFlagsFromString(const char *str) {
   ParseFlag(str, &f->fast_unwind_on_malloc, "fast_unwind_on_malloc");
   ParseFlag(str, &f->symbolize, "symbolize");
   ParseFlag(str, &f->handle_ioctl, "handle_ioctl");
+  ParseFlag(str, &f->log_path, "log_path");
 }
 
 static bool GetFlagValue(const char *env, const char *name,

compiler-rt/lib/sanitizer_common/sanitizer_flags.h

@@ -37,6 +37,8 @@ struct CommonFlags {
   bool handle_ioctl;
   // Max number of stack frames kept for each allocation/deallocation.
   int malloc_context_size;
+  // Write logs to "log_path.pid" instead of stderr.
+  const char *log_path;
 };
 
 extern CommonFlags common_flags_dont_use_directly;