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나는 SpiderMonkey가 내장 된 간단한 C++ 프로그램을 작성 중이다. 죄송합니다. JS_NewContext()에 있습니다. (jsapi_use.cpp로 저장)JSAPI segfault in JS_NewContext
이 프로그램은 :
#define __STDC_LIMIT_MACROS
#include <js/Initialization.h>
#include <jsapi.h>
#include <stdint.h>
static JSClass global_class = {
#if 0
.name = "global",
.flags = JSCLASS_GLOBAL_FLAGS,
.addProperty = nullptr,
.delProperty = nullptr,
.getProperty = nullptr,
.setProperty = nullptr,
.enumerate = nullptr,
.resolve = nullptr,
.mayResolve = nullptr,
.finalize = nullptr,
.call = nullptr,
.hasInstance = nullptr,
.construct = nullptr,
.trace = JS_GlobalObjectTraceHook,
#else
"global", JSCLASS_GLOBAL_FLAGS,
nullptr, nullptr,
nullptr, nullptr,
nullptr, nullptr,
nullptr, nullptr,
nullptr, nullptr,
nullptr, JS_GlobalObjectTraceHook,
{0},
#endif
};
int main() {
if (!JS_Init())
return 1;
JSRuntime *rt =
JS_NewRuntime(8L * 1024 * 1024 /*, JS::DefaultHeapMaxBytes, nullptr*/);
if (nullptr == rt)
return 1;
JSContext *cx = JS_NewContext(rt, 8192);
if (!cx) {
return 1;
}
{
JSAutoRequest ar(cx);
JS::RootedObject global(cx, JS_NewGlobalObject(cx, &global_class, nullptr,
JS::FireOnNewGlobalHook));
if (!global)
return 1;
JS::RootedValue rval(cx);
{
JSAutoCompartment ac(cx, global);
JS_InitStandardClasses(cx, global);
const char *script = "'hello'+'world, it is '+new Date();";
const char *filename = "noname";
auto lineno = 1U;
JS::CompileOptions opts(cx);
opts.setFileAndLine(filename, lineno);
bool ok = JS::Evaluate(cx, opts, script, strlen(script), &rval);
if (!ok)
return 1;
}
if (rval.isString()) {
JSString *string = rval.toString();
puts(JS_EncodeString(cx, string));
}
}
JS_DestroyContext(cx);
JS_DestroyRuntime(rt);
JS_ShutDown();
return 0;
}
이 JS_NewContext에서 충돌합니다.
내 메이크 : MAKEFLAGS = -r -R
CXX := g++
CXXFLAGS += -g3 -std=gnu++14
TARGET = $(subst ','\'',[email protected])#')
SOURCE = $(subst ','\'',$<)#')
PKG_CFLAGS=$(shell pkg-config --cflags mozjs-45)
PKG_LDFLAGS=$(shell pkg-config --libs mozjs-45)
%.o: %.cpp Makefile
$(CXX) $(CPPFLAGS) -c -o $(TARGET) $(CXXFLAGS) $(PKG_CFLAGS) $(SOURCE)
%: %.o
$(CXX) -o $(TARGET) $(SOURCE) $(PKG_LDFLAGS) -lz -lpthread -ldl
%.iii: %.cpp Makefile
cpp $(CPPFLAGS) -dD -CC -o $(TARGET) $(PKG_CFLAGS) $(SOURCE)
clang-format -i -- $(TARGET)
Segmentation fault (core dumped). gdb`에 make jsapi_use; ./jsapi_use 결과를 실행하면 프로그램이 때문에 NULL 포인터를 역 참조에 SpiderMonkey를 내부에 깊은 segfaulting 것을 알 수있다.
Fedora 24 Linux에서 mozjs45의 SpiderMonkey를 사용하고 있습니다.
GDB 역 추적
Thread 1 "jsapi_use" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ??()
#0 0x0000000000000000 in ??()
#1 0x00007ffff7a6adb5 in js::ScriptBytecodeHasher::hash (l=<synthetic pointer>, l=<synthetic pointer>) at /usr/src/debug/firefox-45.4.0esr/js/src/jsscript.h:2412
#2 js::detail::HashTable<js::SharedScriptData* const, js::HashSet<js::SharedScriptData*, js::ScriptBytecodeHasher, js::SystemAllocPolicy>::SetOps, js::SystemAllocPolicy>::prepareHash (l=<synthetic pointer>) at ../../dist/include/js/HashTable.h:1126
#3 js::detail::HashTable<js::SharedScriptData* const, js::HashSet<js::SharedScriptData*, js::ScriptBytecodeHasher, js::SystemAllocPolicy>::SetOps, js::SystemAllocPolicy>::lookupForAdd (l=<synthetic pointer>, this=<optimized out>) at ../../dist/include/js/HashTable.h:1638
#4 js::HashSet<js::SharedScriptData*, js::ScriptBytecodeHasher, js::SystemAllocPolicy>::lookupForAdd (l=<synthetic pointer>, this=<optimized out>) at ../../dist/include/js/HashTable.h:386
#5 SaveSharedScriptData ([email protected]=0x639ed0, script=..., ssd=<optimized out>, nsrcnotes=1) at /usr/src/debug/firefox-45.4.0esr/js/src/jsscript.cpp:2502
#6 0x00007ffff7a6b2f7 in JSScript::fullyInitTrivial ([email protected]=0x639ed0, script=..., [email protected]=...) at /usr/src/debug/firefox-45.4.0esr/js/src/jsscript.cpp:2886
#7 0x00007ffff7a2a451 in CreateFunctionPrototype(JSContext *, enum JSProtoKey) (cx=0x639ed0, key=<optimized out>) at /usr/src/debug/firefox-45.4.0esr/js/src/jsfun.cpp:785
#8 0x00007ffff7ae37b3 in js::GlobalObject::resolveConstructor (cx=0x639ed0, global=..., key=<optimized out>) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/GlobalObject.cpp:158
#9 0x00007ffff7ae3da7 in js::GlobalObject::ensureConstructor ([email protected]=0x639ed0, global=..., [email protected]=..., [email protected]=JSProto_Function) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/GlobalObject.cpp:98
#10 0x00007ffff79677ed in CreateObjectConstructor(JSContext *, enum JSProtoKey) (cx=0x639ed0, key=<optimized out>) at /usr/src/debug/firefox-45.4.0esr/js/src/builtin/Object.cpp:1035
#11 0x00007ffff7ae382f in js::GlobalObject::resolveConstructor (cx=0x639ed0, global=..., key=<optimized out>) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/GlobalObject.cpp:166
#12 0x00007ffff772dda6 in CreateArrayPrototype(JSContext *, enum JSProtoKey) (cx=0x639ed0, key=<optimized out>) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/GlobalObject.h:342
#13 0x00007ffff7ae18ce in InitBareBuiltinCtor(JSContext *, JS::Handle<js::GlobalObject*>, enum JSProtoKey) ([email protected]=0x639ed0, global=..., [email protected]=..., [email protected]=JSProto_Array) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/GlobalObject.cpp:368
#14 0x00007ffff7ae1b08 in js::GlobalObject::initSelfHostingBuiltins ([email protected]=0x639ed0, [email protected]=..., [email protected]=0x7ffff7dbefa0 <intrinsic_functions>) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/GlobalObject.cpp:413
#15 0x00007ffff7b5041f in JSRuntime::createSelfHostingGlobal ([email protected]=0x639ed0) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/SelfHosting.cpp:1730
#16 0x00007ffff7b5056f in JSRuntime::initSelfHosting (this=0x617850, cx=0x639ed0) at /usr/src/debug/firefox-45.4.0esr/js/src/vm/SelfHosting.cpp:1754
#17 0x00007ffff79e2103 in js::NewContext ([email protected]=0x617850, [email protected]=8192) at /usr/src/debug/firefox-45.4.0esr/js/src/jscntxt.cpp:122
#18 0x00007ffff79e21ba in JS_NewContext ([email protected]=0x617850, [email protected]=8192) at /usr/src/debug/firefox-45.4.0esr/js/src/jsapi.cpp:566
#19 0x0000000000400e4f in main() at jsapi_use.cpp:41
gdb에서 얻은 나머지 백 트레이스는 무엇입니까? – ptomato
@ptomato 편집보기 – Demi