Changeset 94955 in webkit

Timestamp:

Sep 12, 2011 7:20:07 AM (13 years ago)

Author:

kbalazs@webkit.org

Message:

[Qt][WK2] WebKitTestRunner does not produce crash logs
​https://bugs.webkit.org/show_bug.cgi?id=67714

Added a simple way of generating backtrace on crash
to the web process. The implementation is similar what
we have in DRT. It depends on GNU libc functionality
so it is only enabled where we are running in such an environment.

• WebKitTestRunner/InjectedBundle/qt/InjectedBundleQt.cpp:

(WTR::printBacktrace):
(WTR::crashHandler):
(WTR::InjectedBundle::platformInitialize):

Location:

trunk/Tools

Files:

• ChangeLog (modified) (1 diff)
• WebKitTestRunner/InjectedBundle/qt/InjectedBundleQt.cpp (modified) (2 diffs)

trunk/Tools/ChangeLog

@@ +1 @@
+2011-09-12  Balazs Kelemen  <kbalazs@webkit.org>
+
+        [Qt][WK2] WebKitTestRunner does not produce crash logs
+        https://bugs.webkit.org/show_bug.cgi?id=67714
+
+        Added a simple way of generating backtrace on crash
+        to the web process. The implementation is similar what
+        we have in DRT. It depends on GNU libc functionality
+        so it is only enabled where we are running in such an environment.
+
+        * WebKitTestRunner/InjectedBundle/qt/InjectedBundleQt.cpp:
+        (WTR::printBacktrace):
+        (WTR::crashHandler):
+        (WTR::InjectedBundle::platformInitialize):
+
 2011-09-11  Filip Pizlo  <fpizlo@apple.com>
 

trunk/Tools/WebKitTestRunner/InjectedBundle/qt/InjectedBundleQt.cpp

@@ -1 +1 @@
 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
+ * Copyright (C) 2011 University of Szeged. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26 +27 @@
 #include "config.h"
 #include "InjectedBundle.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <wtf/AlwaysInline.h>
+
+#if HAVE(SIGNAL_H)
+#include <signal.h>
+#endif
+
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
+#include <execinfo.h>
+#endif
 
 namespace WTR {
 
+static inline void printBacktrace()
+{
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
+    void* frames[256];
+    size_t size = backtrace(frames, 256);
+    if (!size)
+        return;
+
+    char** symbols = backtrace_symbols(frames, size);
+    if (!symbols)
+        return;
+
+    for (unsigned i = 0; i < size; ++i)
+        fprintf(stderr, "%u: %s\n", i, symbols[i]);
+
+    fflush(stderr);
+    free(symbols);
+#endif
+}
+
+#if HAVE(SIGNAL_H)
+static NO_RETURN void crashHandler(int signal)
+{
+    fprintf(stderr, "%s\n", strsignal(signal));
+    printBacktrace();
+    exit(128 + signal);
+}
+#endif
+
 void InjectedBundle::platformInitialize(WKTypeRef)
 {
+#if HAVE(SIGNAL_H)
+    signal(SIGILL, crashHandler);    /* 4:   illegal instruction (not reset when caught) */
+    signal(SIGTRAP, crashHandler);   /* 5:   trace trap (not reset when caught) */
+    signal(SIGFPE, crashHandler);    /* 8:   floating point exception */
+    signal(SIGBUS, crashHandler);    /* 10:  bus error */
+    signal(SIGSEGV, crashHandler);   /* 11:  segmentation violation */
+    signal(SIGSYS, crashHandler);    /* 12:  bad argument to system call */
+    signal(SIGPIPE, crashHandler);   /* 13:  write on a pipe with no reader */
+    signal(SIGXCPU, crashHandler);   /* 24:  exceeded CPU time limit */
+    signal(SIGXFSZ, crashHandler);   /* 25:  exceeded file size limit */
+#endif
 }