From 476c4db3dc56bee43df384704c75ccc71cfa7a1d Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Tue, 10 Feb 2015 07:45:43 +0000
Subject: Import compiler-rt trunk r228651.

https://llvm.org/svn/llvm-project/compiler-rt/trunk@228651
---
 lib/lsan/lsan_common.cc | 77 ++++++++++++++++++++++++-------------------------
 1 file changed, 38 insertions(+), 39 deletions(-)

(limited to 'lib/lsan/lsan_common.cc')

diff --git a/lib/lsan/lsan_common.cc b/lib/lsan/lsan_common.cc
index c2ba52e46911..7b3cd1639761 100644
--- a/lib/lsan/lsan_common.cc
+++ b/lib/lsan/lsan_common.cc
@@ -16,6 +16,7 @@
 
 #include "sanitizer_common/sanitizer_common.h"
 #include "sanitizer_common/sanitizer_flags.h"
+#include "sanitizer_common/sanitizer_flag_parser.h"
 #include "sanitizer_common/sanitizer_placement_new.h"
 #include "sanitizer_common/sanitizer_procmaps.h"
 #include "sanitizer_common/sanitizer_stackdepot.h"
@@ -36,52 +37,50 @@ bool DisabledInThisThread() { return disable_counter > 0; }
 
 Flags lsan_flags;
 
+void Flags::SetDefaults() {
+#define LSAN_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
+#include "lsan_flags.inc"
+#undef LSAN_FLAG
+}
+
+static void RegisterLsanFlags(FlagParser *parser, Flags *f) {
+#define LSAN_FLAG(Type, Name, DefaultValue, Description) \
+  RegisterFlag(parser, #Name, Description, &f->Name);
+#include "lsan_flags.inc"
+#undef LSAN_FLAG
+}
+
 static void InitializeFlags(bool standalone) {
   Flags *f = flags();
-  // Default values.
-  f->report_objects = false;
-  f->resolution = 0;
-  f->max_leaks = 0;
-  f->exitcode = 23;
-  f->use_registers = true;
-  f->use_globals = true;
-  f->use_stacks = true;
-  f->use_tls = true;
-  f->use_root_regions = true;
-  f->use_unaligned = false;
-  f->use_poisoned = false;
-  f->log_pointers = false;
-  f->log_threads = false;
+  FlagParser parser;
+  RegisterLsanFlags(&parser, f);
+  RegisterCommonFlags(&parser);
 
-  const char *options = GetEnv("LSAN_OPTIONS");
-  if (options) {
-    ParseFlag(options, &f->use_registers, "use_registers", "");
-    ParseFlag(options, &f->use_globals, "use_globals", "");
-    ParseFlag(options, &f->use_stacks, "use_stacks", "");
-    ParseFlag(options, &f->use_tls, "use_tls", "");
-    ParseFlag(options, &f->use_root_regions, "use_root_regions", "");
-    ParseFlag(options, &f->use_unaligned, "use_unaligned", "");
-    ParseFlag(options, &f->use_poisoned, "use_poisoned", "");
-    ParseFlag(options, &f->report_objects, "report_objects", "");
-    ParseFlag(options, &f->resolution, "resolution", "");
-    CHECK_GE(&f->resolution, 0);
-    ParseFlag(options, &f->max_leaks, "max_leaks", "");
-    CHECK_GE(&f->max_leaks, 0);
-    ParseFlag(options, &f->log_pointers, "log_pointers", "");
-    ParseFlag(options, &f->log_threads, "log_threads", "");
-    ParseFlag(options, &f->exitcode, "exitcode", "");
-  }
+  f->SetDefaults();
 
   // Set defaults for common flags (only in standalone mode) and parse
   // them from LSAN_OPTIONS.
-  CommonFlags *cf = common_flags();
   if (standalone) {
-    SetCommonFlagsDefaults(cf);
-    cf->external_symbolizer_path = GetEnv("LSAN_SYMBOLIZER_PATH");
-    cf->malloc_context_size = 30;
-    cf->detect_leaks = true;
+    SetCommonFlagsDefaults();
+    CommonFlags cf;
+    cf.CopyFrom(*common_flags());
+    cf.external_symbolizer_path = GetEnv("LSAN_SYMBOLIZER_PATH");
+    cf.malloc_context_size = 30;
+    cf.detect_leaks = true;
+    OverrideCommonFlags(cf);
   }
-  ParseCommonFlagsFromString(cf, options);
+
+  bool help_before = common_flags()->help;
+
+  const char *options = GetEnv("LSAN_OPTIONS");
+  parser.ParseString(options);
+
+  SetVerbosity(common_flags()->verbosity);
+
+  if (Verbosity()) ReportUnrecognizedFlags();
+
+  if (!help_before && common_flags()->help)
+    parser.PrintFlagDescriptions();
 }
 
 #define LOG_POINTERS(...)                           \
@@ -367,7 +366,7 @@ static void CollectLeaksCb(uptr chunk, void *arg) {
   LsanMetadata m(chunk);
   if (!m.allocated()) return;
   if (m.tag() == kDirectlyLeaked || m.tag() == kIndirectlyLeaked) {
-    uptr resolution = flags()->resolution;
+    u32 resolution = flags()->resolution;
     u32 stack_trace_id = 0;
     if (resolution > 0) {
       StackTrace stack = StackDepotGet(m.stack_trace_id());
-- 
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