64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set ts=8 sts=4 et sw=4 tw=99: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "xpcprivate.h"
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#include "jsprf.h"
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#include "nsThreadUtils.h"
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#include "nsContentUtils.h"
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#include "mozilla/Sprintf.h"
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#ifdef XP_WIN
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#include <windows.h>
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#endif
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static void DebugDump(const char* fmt, ...)
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{
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char buffer[2048];
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va_list ap;
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va_start(ap, fmt);
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#ifdef XPWIN
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_vsnprintf(buffer, sizeof(buffer), fmt, ap);
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buffer[sizeof(buffer)-1] = '\0';
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#else
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VsprintfLiteral(buffer, fmt, ap);
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#endif
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va_end(ap);
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#ifdef XP_WIN
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if (IsDebuggerPresent()) {
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OutputDebugStringA(buffer);
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}
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#endif
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printf("%s", buffer);
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}
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bool
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xpc_DumpJSStack(bool showArgs, bool showLocals, bool showThisProps)
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{
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JSContext* cx = nsContentUtils::GetCurrentJSContextForThread();
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if (!cx) {
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printf("there is no JSContext on the stack!\n");
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} else if (char* buf = xpc_PrintJSStack(cx, showArgs, showLocals, showThisProps)) {
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DebugDump("%s\n", buf);
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JS_smprintf_free(buf);
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}
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return true;
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}
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char*
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xpc_PrintJSStack(JSContext* cx, bool showArgs, bool showLocals,
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bool showThisProps)
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{
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JS::AutoSaveExceptionState state(cx);
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char* buf = JS::FormatStackDump(cx, nullptr, showArgs, showLocals, showThisProps);
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if (!buf)
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DebugDump("%s", "Failed to format JavaScript stack for dump\n");
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state.restore();
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return buf;
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}
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