Crash like chrome. Currently, most chrome crashes do not yield useful stack...

Crash like chrome.  Currently, most chrome crashes do not yield useful stack traces as v8 does a silent abort and chrome's crash symbolization does not kick in.

R=svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/179793004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/flag-definitions.h

@@ -470,7 +470,7 @@ DEFINE_bool(debugger_auto_break, true,
             "automatically set the debug break flag when debugger commands are "
             "in the queue")
 DEFINE_bool(enable_liveedit, true, "enable liveedit experimental feature")
-DEFINE_bool(break_on_abort, true, "always cause a debug break before aborting")
+DEFINE_bool(hard_abort, true, "abort by crashing")
 
 // execution.cc
 // Slightly less than 1MB on 64-bit, since Windows' default stack size for

src/globals.h

@@ -390,6 +390,12 @@ F FUNCTION_CAST(Address addr) {
 #define DISABLE_ASAN
 #endif
 
+#if V8_CC_GNU
+#define V8_IMMEDIATE_CRASH() __builtin_trap()
+#else
+#define V8_IMMEDIATE_CRASH() ((void(*)())0)()
+#endif
+
 
 // -----------------------------------------------------------------------------
 // Forward declarations for frequently used classes

src/platform-posix.cc

@@ -265,10 +265,10 @@ void OS::Sleep(int milliseconds) {
 
 
 void OS::Abort() {
-  // Redirect to std abort to signal abnormal program termination.
-  if (FLAG_break_on_abort) {
-    DebugBreak();
+  if (FLAG_hard_abort) {
+    V8_IMMEDIATE_CRASH();
   }
+  // Redirect to std abort to signal abnormal program termination.
   abort();
 }
 

src/platform-win32.cc

@@ -923,12 +923,11 @@ void OS::Sleep(int milliseconds) {
 
 
 void OS::Abort() {
-  if (IsDebuggerPresent() || FLAG_break_on_abort) {
-    DebugBreak();
-  } else {
+  if (FLAG_hard_abort) {
+    V8_IMMEDIATE_CRASH();
+  }
   // Make the MSVCRT do a silent abort.
   raise(SIGABRT);
-  }
 }
 
 

tools/run-deopt-fuzzer.py

@@ -55,11 +55,11 @@ TIMEOUT_SCALEFACTOR = {"debug"   : 4,
                        "release" : 1 }
 
 MODE_FLAGS = {
-    "debug"   : ["--nobreak-on-abort", "--nodead-code-elimination",
+    "debug"   : ["--nohard-abort", "--nodead-code-elimination",
                  "--nofold-constants", "--enable-slow-asserts",
                  "--debug-code", "--verify-heap",
                  "--noconcurrent-recompilation"],
-    "release" : ["--nobreak-on-abort", "--nodead-code-elimination",
+    "release" : ["--nohard-abort", "--nodead-code-elimination",
                  "--nofold-constants", "--noconcurrent-recompilation"]}
 
 SUPPORTED_ARCHS = ["android_arm",

tools/run-tests.py

@@ -63,10 +63,10 @@ VARIANT_FLAGS = {
 VARIANTS = ["default", "stress", "nocrankshaft"]
 
 MODE_FLAGS = {
-    "debug"   : ["--nobreak-on-abort", "--nodead-code-elimination",
+    "debug"   : ["--nohard-abort", "--nodead-code-elimination",
                  "--nofold-constants", "--enable-slow-asserts",
                  "--debug-code", "--verify-heap"],
-    "release" : ["--nobreak-on-abort", "--nodead-code-elimination",
+    "release" : ["--nohard-abort", "--nodead-code-elimination",
                  "--nofold-constants"]}
 
 GC_STRESS_FLAGS = ["--gc-interval=500", "--stress-compaction",