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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
// SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
// SPDX-FileCopyrightText: 2009 Red Hat, Inc.
#include <config.h>
#include <stdio.h> // for stderr, open_memstream
#include <sstream>
#include <string>
#include <glib-object.h>
#include <glib.h>
#include <js/TypeDecls.h>
#include <js/friend/DumpFunctions.h>
#include "gjs/context-private.h"
#include "gjs/context.h"
#include "gjs/jsapi-util.h"
void
gjs_context_print_stack_stderr(GjsContext *context)
{
JSContext *cx = (JSContext*) gjs_context_get_native_context(context);
g_printerr("== Stack trace for context %p ==\n", context);
js::DumpBacktrace(cx, stderr);
}
void
gjs_dumpstack(void)
{
GjsSmartPointer<GList> contexts = gjs_context_get_all();
GList *iter;
for (iter = contexts; iter; iter = iter->next) {
GjsAutoUnref<GjsContext> context(GJS_CONTEXT(iter->data));
gjs_context_print_stack_stderr(context);
}
}
#ifdef HAVE_OPEN_MEMSTREAM
static std::string
stack_trace_string(GjsContext *context) {
JSContext *cx = static_cast<JSContext *>(gjs_context_get_native_context(context));
std::ostringstream out;
FILE *stream;
GjsAutoChar buf;
size_t len;
stream = open_memstream(buf.out(), &len);
if (!stream) {
out << "No stack trace for context " << context << ": "
"open_memstream() failed\n\n";
return out.str();
}
js::DumpBacktrace(cx, stream);
fclose(stream);
out << "== Stack trace for context " << context << " ==\n"
<< buf.get() << "\n";
return out.str();
}
#endif
std::string
gjs_dumpstack_string() {
std::string out;
std::ostringstream all_traces;
#ifdef HAVE_OPEN_MEMSTREAM
GjsSmartPointer<GList> contexts = gjs_context_get_all();
GList *iter;
for (iter = contexts; iter; iter = iter->next) {
GjsAutoUnref<GjsContext> context(GJS_CONTEXT(iter->data));
all_traces << stack_trace_string(context);
}
out = all_traces.str();
out.resize(MAX(out.size() - 2, 0));
#else
out = "No stack trace: no open_memstream() support. "
"See https://bugzilla.mozilla.org/show_bug.cgi?id=1826290";
#endif
return out;
}
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