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https://github.com/corda/corda.git
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rework loadLibrary interception to handle builtins properly
This commit is contained in:
Joel Dice
parent
bc2b4802ec
commit
d381ece44b
@ -174,7 +174,7 @@ class MyClasspath : public Classpath {
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MyClasspath(System* s, Allocator* allocator, const char* javaHome,
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const char* embedPrefix):
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allocator(allocator)
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allocator(allocator), ranNetOnLoad(0)
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{
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class StringBuilder {
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public:
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@ -239,30 +239,6 @@ class MyClasspath : public Classpath {
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#endif
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sb.append('\0');
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this->zipLibrary = sb.pointer;
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sb.append(this->libraryPath);
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sb.append("/");
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sb.append(SO_PREFIX);
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sb.append("zip");
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sb.append(SO_SUFFIX);
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sb.append('\0');
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this->netLibrary = sb.pointer;
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sb.append(this->libraryPath);
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sb.append("/");
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sb.append(SO_PREFIX);
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sb.append("net");
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sb.append(SO_SUFFIX);
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sb.append('\0');
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this->nioLibrary = sb.pointer;
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sb.append(this->libraryPath);
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sb.append("/");
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sb.append(SO_PREFIX);
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sb.append("nio");
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sb.append(SO_SUFFIX);
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sb.append('\0');
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this->tzMappings = sb.pointer;
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sb.append(javaHome);
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sb.append("/lib/tzmappings");
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@ -445,9 +421,6 @@ class MyClasspath : public Classpath {
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const char* javaHome;
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const char* classpath;
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const char* libraryPath;
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const char* zipLibrary;
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const char* netLibrary;
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const char* nioLibrary;
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const char* tzMappings;
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const char* embedPrefix;
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unsigned tzMappingsLength;
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@ -455,6 +428,7 @@ class MyClasspath : public Classpath {
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unsigned filePathField;
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unsigned fileDescriptorFdField;
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unsigned fileInputStreamFdField;
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bool ranNetOnLoad;
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char buffer[BufferSize];
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};
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@ -595,44 +569,37 @@ getFileAttributes
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stringChars(t, path, RUNTIME_ARRAY_BODY(p));
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replace('\\', '/', RUNTIME_ARRAY_BODY(p));
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if (pathEqual(cp->zipLibrary, RUNTIME_ARRAY_BODY(p))
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or pathEqual(cp->netLibrary, RUNTIME_ARRAY_BODY(p))
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or pathEqual(cp->nioLibrary, RUNTIME_ARRAY_BODY(p)))
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{
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return Exists | Regular;
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} else {
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EmbeddedFile ef(cp, RUNTIME_ARRAY_BODY(p), stringLength(t, path));
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if (ef.jar) {
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if (ef.jarLength == 0) {
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EmbeddedFile ef(cp, RUNTIME_ARRAY_BODY(p), stringLength(t, path));
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if (ef.jar) {
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if (ef.jarLength == 0) {
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return Exists | Directory;
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}
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Finder* finder = getFinder(t, ef.jar, ef.jarLength);
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if (finder) {
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if (ef.pathLength == 0) {
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return Exists | Directory;
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}
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Finder* finder = getFinder(t, ef.jar, ef.jarLength);
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if (finder) {
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if (ef.pathLength == 0) {
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return Exists | Directory;
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}
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unsigned length;
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System::FileType type = finder->stat(ef.path, &length, true);
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switch (type) {
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case System::TypeUnknown: return Exists;
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case System::TypeDoesNotExist: return 0;
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case System::TypeFile: return Exists | Regular;
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case System::TypeDirectory: return Exists | Directory;
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default: abort(t);
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}
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} else {
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return 0;
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unsigned length;
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System::FileType type = finder->stat(ef.path, &length, true);
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switch (type) {
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case System::TypeUnknown: return Exists;
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case System::TypeDoesNotExist: return 0;
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case System::TypeFile: return Exists | Regular;
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case System::TypeDirectory: return Exists | Directory;
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default: abort(t);
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}
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} else {
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object r = t->m->processor->invoke
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(t, nativeInterceptOriginal
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(t, methodRuntimeDataNative(t, getMethodRuntimeData(t, method))),
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reinterpret_cast<object>(arguments[0]), file);
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return (r ? intValue(t, r) : 0);
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return 0;
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}
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} else {
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object r = t->m->processor->invoke
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(t, nativeInterceptOriginal
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(t, methodRuntimeDataNative(t, getMethodRuntimeData(t, method))),
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reinterpret_cast<object>(arguments[0]), file);
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return (r ? intValue(t, r) : 0);
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}
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}
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@ -652,44 +619,37 @@ checkFileAccess
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stringChars(t, path, RUNTIME_ARRAY_BODY(p));
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replace('\\', '/', RUNTIME_ARRAY_BODY(p));
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if (pathEqual(cp->zipLibrary, RUNTIME_ARRAY_BODY(p))
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or pathEqual(cp->netLibrary, RUNTIME_ARRAY_BODY(p))
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or pathEqual(cp->nioLibrary, RUNTIME_ARRAY_BODY(p)))
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{
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return mask == Read;
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} else {
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EmbeddedFile ef(cp, RUNTIME_ARRAY_BODY(p), stringLength(t, path));
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if (ef.jar) {
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if (ef.jarLength == 0) {
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EmbeddedFile ef(cp, RUNTIME_ARRAY_BODY(p), stringLength(t, path));
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if (ef.jar) {
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if (ef.jarLength == 0) {
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return mask == Read;
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}
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Finder* finder = getFinder(t, ef.jar, ef.jarLength);
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if (finder) {
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if (ef.pathLength == 0) {
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return mask == Read;
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}
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Finder* finder = getFinder(t, ef.jar, ef.jarLength);
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if (finder) {
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if (ef.pathLength == 0) {
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return mask == Read;
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}
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unsigned length;
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System::FileType type = finder->stat(ef.path, &length, true);
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switch (type) {
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case System::TypeDoesNotExist: return false;
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case System::TypeUnknown:
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case System::TypeFile:
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case System::TypeDirectory: return mask == Read;
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default: abort(t);
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}
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} else {
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return 0;
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unsigned length;
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System::FileType type = finder->stat(ef.path, &length, true);
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switch (type) {
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case System::TypeDoesNotExist: return false;
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case System::TypeUnknown:
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case System::TypeFile:
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case System::TypeDirectory: return mask == Read;
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default: abort(t);
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}
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} else {
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object r = t->m->processor->invoke
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(t, nativeInterceptOriginal
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(t, methodRuntimeDataNative(t, getMethodRuntimeData(t, method))),
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reinterpret_cast<object>(arguments[0]), file, mask);
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return (r ? booleanValue(t, r) : false);
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return 0;
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}
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} else {
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object r = t->m->processor->invoke
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(t, nativeInterceptOriginal
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(t, methodRuntimeDataNative(t, getMethodRuntimeData(t, method))),
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reinterpret_cast<object>(arguments[0]), file, mask);
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return (r ? booleanValue(t, r) : false);
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}
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}
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@ -1048,6 +1008,50 @@ getBootstrapResources(Thread* t, object, uintptr_t* arguments)
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}
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}
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extern "C" JNIEXPORT jint JNICALL
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net_JNI_OnLoad(JavaVM*, void*);
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void JNICALL
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loadLibrary(Thread* t, object, uintptr_t* arguments)
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{
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object name = reinterpret_cast<object>(arguments[1]);
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RUNTIME_ARRAY(char, n, stringLength(t, name) + 1);
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stringChars(t, name, RUNTIME_ARRAY_BODY(n));
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bool absolute = arguments[2];
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#ifdef AVIAN_OPENJDK_SRC
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if (not absolute) {
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if (strcmp(n, "net") == 0) {
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bool ran;
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{ ACQUIRE(t, t->m->classLock);
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local::MyClasspath* c = static_cast<local::MyClasspath*>
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(t->m->classpath);
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ran = c->ranNetOnLoad;
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c->ranNetOnLoad = true;
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}
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if (not ran) {
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net_JNI_OnLoad(t->m, 0);
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}
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return;
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} else if (strcmp(n, "zip") == 0
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or strcmp(n, "nio") == 0)
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{
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return;
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}
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}
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#endif // AVIAN_OPENJDK_SRC
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loadLibrary
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(t, static_cast<local::MyClasspath*>(t->m->classpath)->libraryPath,
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RUNTIME_ARRAY_BODY(n), not absolute, false);
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}
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// only safe to call during bootstrap when there's only one thread
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// running:
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void
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@ -1160,6 +1164,10 @@ interceptFileOperations(Thread* t)
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voidPointer(getFileLength));
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}
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intercept(t, type(t, Machine::ClassLoaderType), "loadLibrary",
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"(Ljava/lang/Class;Ljava/lang/String;Z)V",
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voidPointer(loadLibrary));
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intercept(t, type(t, Machine::ClassLoaderType), "getBootstrapResource",
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"(Ljava/lang/String;)Ljava/net/URL;",
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voidPointer(getBootstrapResource));
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@ -2060,9 +2068,6 @@ EXPORT(JVM_ActiveProcessorCount)()
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return 1;
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}
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extern "C" JNIEXPORT jint JNICALL
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net_JNI_OnLoad(JavaVM*, void*);
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extern "C" JNIEXPORT void* JNICALL
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EXPORT(JVM_LoadLibrary)(const char* path)
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{
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@ -2071,26 +2076,6 @@ EXPORT(JVM_LoadLibrary)(const char* path)
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RUNTIME_ARRAY(char, p, strlen(path) + 1);
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replace('\\', '/', RUNTIME_ARRAY_BODY(p), path);
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#ifdef AVIAN_OPENJDK_SRC
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if (local::pathEqual
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(static_cast<local::MyClasspath*>(t->m->classpath)->zipLibrary,
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RUNTIME_ARRAY_BODY(p))
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or local::pathEqual
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(static_cast<local::MyClasspath*>(t->m->classpath)->nioLibrary,
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RUNTIME_ARRAY_BODY(p)))
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{
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return t->m->libraries;
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} else if (local::pathEqual
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(static_cast<local::MyClasspath*>(t->m->classpath)->netLibrary,
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RUNTIME_ARRAY_BODY(p)))
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{
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net_JNI_OnLoad(t->m, 0);
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return t->m->libraries;
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}
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#endif // AVIAN_OPENJDK_SRC
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ENTER(t, Thread::ActiveState);
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return loadLibrary
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(t, static_cast<local::MyClasspath*>(t->m->classpath)->libraryPath,
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RUNTIME_ARRAY_BODY(p), false, false);
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