1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8
9 #include "gdb-tests.h"
10 #include "jsapi.h"
11 #include "jsfriendapi.h"
12 #include "js/Initialization.h"
13 #include "js/Warnings.h" // JS::SetWarningReporter
14
15 using namespace JS;
16
17 /* The class of the global object. */
18 static const JSClass global_class = {"global", JSCLASS_GLOBAL_FLAGS,
19 &DefaultGlobalClassOps};
20
21 static volatile int dontOptimizeMeAway = 0;
22
usePointer(const void * ptr)23 void usePointer(const void* ptr) { dontOptimizeMeAway++; }
24
25 template <typename T>
checkPtr(T * ptr)26 static inline T* checkPtr(T* ptr) {
27 if (!ptr) {
28 abort();
29 }
30 return ptr;
31 }
32
checkBool(bool success)33 static void checkBool(bool success) {
34 if (!success) {
35 abort();
36 }
37 }
38
39 /* The warning reporter callback. */
reportWarning(JSContext * cx,JSErrorReport * report)40 void reportWarning(JSContext* cx, JSErrorReport* report) {
41 fprintf(stderr, "%s:%u: %s\n",
42 report->filename ? report->filename : "<no filename>",
43 (unsigned int)report->lineno, report->message().c_str());
44 }
45
46 // prologue.py sets a breakpoint on this function; test functions can call it
47 // to easily return control to GDB where desired.
breakpoint()48 void breakpoint() {
49 // If we leave this function empty, the linker will unify it with other
50 // empty functions throughout SpiderMonkey. If we then set a GDB
51 // breakpoint on it, that breakpoint will hit at all sorts of random
52 // times. So make it perform a distinctive side effect.
53 fprintf(stderr, "Called " __FILE__ ":breakpoint\n");
54 }
55
56 GDBFragment* GDBFragment::allFragments = nullptr;
57
main(int argc,const char ** argv)58 int main(int argc, const char** argv) {
59 if (!JS_Init()) return 1;
60 JSContext* cx = checkPtr(JS_NewContext(1024 * 1024));
61
62 JS_SetGCParameter(cx, JSGC_MAX_BYTES, 0xffffffff);
63
64 checkBool(JS::InitSelfHostedCode(cx));
65 JS::SetWarningReporter(cx, reportWarning);
66
67 /* Create the global object. */
68 JS::RealmOptions options;
69 RootedObject global(
70 cx, checkPtr(JS_NewGlobalObject(cx, &global_class, nullptr,
71 JS::FireOnNewGlobalHook, options)));
72 JSAutoRealm ar(cx, global);
73
74 argv++;
75 while (*argv) {
76 const char* name = *argv++;
77 GDBFragment* fragment;
78 for (fragment = GDBFragment::allFragments; fragment;
79 fragment = fragment->next) {
80 if (strcmp(fragment->name(), name) == 0) {
81 fragment->run(cx, argv);
82 break;
83 }
84 }
85 if (!fragment) {
86 fprintf(stderr, "Unrecognized fragment name: %s\n", name);
87 exit(1);
88 }
89 }
90
91 return 0;
92 }
93