Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | // A simple implementation of the native-bridge interface. |
| 18 | |
| 19 | #include <algorithm> |
| 20 | #include <dlfcn.h> |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 21 | #include <jni.h> |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 22 | #include <stdlib.h> |
| 23 | #include <signal.h> |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 24 | #include <vector> |
| 25 | |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 26 | #include "stdio.h" |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 27 | #include "unistd.h" |
Calin Juravle | 44a3506 | 2014-10-22 20:17:58 +0100 | [diff] [blame] | 28 | #include "sys/stat.h" |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 29 | #include "setjmp.h" |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 30 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 31 | #include "base/macros.h" |
Calin Juravle | c842352 | 2014-08-12 20:55:20 +0100 | [diff] [blame] | 32 | #include "nativebridge/native_bridge.h" |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 33 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 34 | struct NativeBridgeMethod { |
| 35 | const char* name; |
| 36 | const char* signature; |
| 37 | bool static_method; |
| 38 | void* fnPtr; |
| 39 | void* trampoline; |
| 40 | }; |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 41 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 42 | static NativeBridgeMethod* find_native_bridge_method(const char *name); |
Calin Juravle | c842352 | 2014-08-12 20:55:20 +0100 | [diff] [blame] | 43 | static const android::NativeBridgeRuntimeCallbacks* gNativeBridgeArtCallbacks; |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 44 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 45 | static jint trampoline_JNI_OnLoad(JavaVM* vm, void* reserved) { |
| 46 | JNIEnv* env = nullptr; |
| 47 | typedef jint (*FnPtr_t)(JavaVM*, void*); |
| 48 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t>(find_native_bridge_method("JNI_OnLoad")->fnPtr); |
| 49 | |
| 50 | vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION_1_6); |
| 51 | if (env == nullptr) { |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | jclass klass = env->FindClass("Main"); |
| 56 | if (klass != nullptr) { |
| 57 | int i, count1, count2; |
| 58 | count1 = gNativeBridgeArtCallbacks->getNativeMethodCount(env, klass); |
| 59 | std::unique_ptr<JNINativeMethod[]> methods(new JNINativeMethod[count1]); |
| 60 | if (methods == nullptr) { |
| 61 | return 0; |
| 62 | } |
| 63 | count2 = gNativeBridgeArtCallbacks->getNativeMethods(env, klass, methods.get(), count1); |
| 64 | if (count1 == count2) { |
| 65 | printf("Test ART callbacks: all JNI function number is %d.\n", count1); |
| 66 | } |
| 67 | |
| 68 | for (i = 0; i < count1; i++) { |
| 69 | NativeBridgeMethod* nb_method = find_native_bridge_method(methods[i].name); |
| 70 | if (nb_method != nullptr) { |
| 71 | jmethodID mid = nullptr; |
| 72 | if (nb_method->static_method) { |
| 73 | mid = env->GetStaticMethodID(klass, methods[i].name, nb_method->signature); |
| 74 | } else { |
| 75 | mid = env->GetMethodID(klass, methods[i].name, nb_method->signature); |
| 76 | } |
| 77 | if (mid != nullptr) { |
| 78 | const char* shorty = gNativeBridgeArtCallbacks->getMethodShorty(env, mid); |
| 79 | if (strcmp(shorty, methods[i].signature) == 0) { |
| 80 | printf(" name:%s, signature:%s, shorty:%s.\n", |
| 81 | methods[i].name, nb_method->signature, shorty); |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | methods.release(); |
| 87 | } |
| 88 | |
| 89 | printf("%s called!\n", __FUNCTION__); |
| 90 | return fnPtr(vm, reserved); |
| 91 | } |
| 92 | |
| 93 | static void trampoline_Java_Main_testFindClassOnAttachedNativeThread(JNIEnv* env, |
| 94 | jclass klass) { |
| 95 | typedef void (*FnPtr_t)(JNIEnv*, jclass); |
| 96 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t> |
| 97 | (find_native_bridge_method("testFindClassOnAttachedNativeThread")->fnPtr); |
| 98 | printf("%s called!\n", __FUNCTION__); |
| 99 | return fnPtr(env, klass); |
| 100 | } |
| 101 | |
| 102 | static void trampoline_Java_Main_testFindFieldOnAttachedNativeThreadNative(JNIEnv* env, |
| 103 | jclass klass) { |
| 104 | typedef void (*FnPtr_t)(JNIEnv*, jclass); |
| 105 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t> |
| 106 | (find_native_bridge_method("testFindFieldOnAttachedNativeThreadNative")->fnPtr); |
| 107 | printf("%s called!\n", __FUNCTION__); |
| 108 | return fnPtr(env, klass); |
| 109 | } |
| 110 | |
| 111 | static void trampoline_Java_Main_testCallStaticVoidMethodOnSubClassNative(JNIEnv* env, |
| 112 | jclass klass) { |
| 113 | typedef void (*FnPtr_t)(JNIEnv*, jclass); |
| 114 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t> |
| 115 | (find_native_bridge_method("testCallStaticVoidMethodOnSubClassNative")->fnPtr); |
| 116 | printf("%s called!\n", __FUNCTION__); |
| 117 | return fnPtr(env, klass); |
| 118 | } |
| 119 | |
| 120 | static jobject trampoline_Java_Main_testGetMirandaMethodNative(JNIEnv* env, jclass klass) { |
| 121 | typedef jobject (*FnPtr_t)(JNIEnv*, jclass); |
| 122 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t> |
| 123 | (find_native_bridge_method("testGetMirandaMethodNative")->fnPtr); |
| 124 | printf("%s called!\n", __FUNCTION__); |
| 125 | return fnPtr(env, klass); |
| 126 | } |
| 127 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 128 | static void trampoline_Java_Main_testNewStringObject(JNIEnv* env, jclass klass) { |
| 129 | typedef void (*FnPtr_t)(JNIEnv*, jclass); |
| 130 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t> |
| 131 | (find_native_bridge_method("testNewStringObject")->fnPtr); |
| 132 | printf("%s called!\n", __FUNCTION__); |
| 133 | return fnPtr(env, klass); |
| 134 | } |
| 135 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 136 | static void trampoline_Java_Main_testZeroLengthByteBuffers(JNIEnv* env, jclass klass) { |
| 137 | typedef void (*FnPtr_t)(JNIEnv*, jclass); |
| 138 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t> |
| 139 | (find_native_bridge_method("testZeroLengthByteBuffers")->fnPtr); |
| 140 | printf("%s called!\n", __FUNCTION__); |
| 141 | return fnPtr(env, klass); |
| 142 | } |
| 143 | |
| 144 | static jbyte trampoline_Java_Main_byteMethod(JNIEnv* env, jclass klass, jbyte b1, jbyte b2, |
| 145 | jbyte b3, jbyte b4, jbyte b5, jbyte b6, |
| 146 | jbyte b7, jbyte b8, jbyte b9, jbyte b10) { |
| 147 | typedef jbyte (*FnPtr_t)(JNIEnv*, jclass, jbyte, jbyte, jbyte, jbyte, jbyte, |
| 148 | jbyte, jbyte, jbyte, jbyte, jbyte); |
| 149 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t>(find_native_bridge_method("byteMethod")->fnPtr); |
| 150 | printf("%s called!\n", __FUNCTION__); |
| 151 | return fnPtr(env, klass, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10); |
| 152 | } |
| 153 | |
| 154 | static jshort trampoline_Java_Main_shortMethod(JNIEnv* env, jclass klass, jshort s1, jshort s2, |
| 155 | jshort s3, jshort s4, jshort s5, jshort s6, |
| 156 | jshort s7, jshort s8, jshort s9, jshort s10) { |
| 157 | typedef jshort (*FnPtr_t)(JNIEnv*, jclass, jshort, jshort, jshort, jshort, jshort, |
| 158 | jshort, jshort, jshort, jshort, jshort); |
| 159 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t>(find_native_bridge_method("shortMethod")->fnPtr); |
| 160 | printf("%s called!\n", __FUNCTION__); |
| 161 | return fnPtr(env, klass, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10); |
| 162 | } |
| 163 | |
| 164 | static jboolean trampoline_Java_Main_booleanMethod(JNIEnv* env, jclass klass, jboolean b1, |
| 165 | jboolean b2, jboolean b3, jboolean b4, |
| 166 | jboolean b5, jboolean b6, jboolean b7, |
| 167 | jboolean b8, jboolean b9, jboolean b10) { |
| 168 | typedef jboolean (*FnPtr_t)(JNIEnv*, jclass, jboolean, jboolean, jboolean, jboolean, jboolean, |
| 169 | jboolean, jboolean, jboolean, jboolean, jboolean); |
| 170 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t>(find_native_bridge_method("booleanMethod")->fnPtr); |
| 171 | printf("%s called!\n", __FUNCTION__); |
| 172 | return fnPtr(env, klass, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10); |
| 173 | } |
| 174 | |
| 175 | static jchar trampoline_Java_Main_charMethod(JNIEnv* env, jclass klass, jchar c1, jchar c2, |
| 176 | jchar c3, jchar c4, jchar c5, jchar c6, |
| 177 | jchar c7, jchar c8, jchar c9, jchar c10) { |
| 178 | typedef jchar (*FnPtr_t)(JNIEnv*, jclass, jchar, jchar, jchar, jchar, jchar, |
| 179 | jchar, jchar, jchar, jchar, jchar); |
| 180 | FnPtr_t fnPtr = reinterpret_cast<FnPtr_t>(find_native_bridge_method("charMethod")->fnPtr); |
| 181 | printf("%s called!\n", __FUNCTION__); |
| 182 | return fnPtr(env, klass, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10); |
| 183 | } |
| 184 | |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 185 | // This code is adapted from 004-SignalTest and causes a segfault. |
| 186 | char *go_away_compiler = nullptr; |
| 187 | |
| 188 | [[ noreturn ]] static void test_sigaction_handler(int sig ATTRIBUTE_UNUSED, |
| 189 | siginfo_t* info ATTRIBUTE_UNUSED, |
| 190 | void* context ATTRIBUTE_UNUSED) { |
| 191 | printf("Should not reach the test sigaction handler."); |
| 192 | abort(); |
| 193 | } |
| 194 | |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 195 | static void raise_sigsegv() { |
| 196 | #if defined(__arm__) || defined(__i386__) || defined(__aarch64__) |
| 197 | *go_away_compiler = 'a'; |
| 198 | #elif defined(__x86_64__) |
| 199 | // Cause a SEGV using an instruction known to be 2 bytes long to account for hardcoded jump |
| 200 | // in the signal handler |
| 201 | asm volatile("movl $0, %%eax;" "movb %%ah, (%%rax);" : : : "%eax"); |
| 202 | #else |
| 203 | // On other architectures we simulate SEGV. |
| 204 | kill(getpid(), SIGSEGV); |
| 205 | #endif |
| 206 | } |
| 207 | |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 208 | static jint trampoline_Java_Main_testSignal(JNIEnv*, jclass) { |
| 209 | // Install the sigaction handler above, which should *not* be reached as the native-bridge |
| 210 | // handler should be called first. Note: we won't chain at all, if we ever get here, we'll die. |
| 211 | struct sigaction tmp; |
| 212 | sigemptyset(&tmp.sa_mask); |
| 213 | tmp.sa_sigaction = test_sigaction_handler; |
Douglas Leung | d0af547 | 2015-05-29 19:50:02 -0700 | [diff] [blame] | 214 | #if !defined(__APPLE__) && !defined(__mips__) |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 215 | tmp.sa_restorer = nullptr; |
Douglas Leung | d0af547 | 2015-05-29 19:50:02 -0700 | [diff] [blame] | 216 | #endif |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 217 | |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 218 | // Test segv |
| 219 | sigaction(SIGSEGV, &tmp, nullptr); |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 220 | raise_sigsegv(); |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 221 | |
| 222 | // Test sigill |
| 223 | sigaction(SIGILL, &tmp, nullptr); |
| 224 | kill(getpid(), SIGILL); |
| 225 | |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 226 | return 1234; |
| 227 | } |
| 228 | |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 229 | // Status of the tricky control path of testSignalHandlerNotReturn. |
| 230 | // |
| 231 | // "kNone" is the default status except testSignalHandlerNotReturn, |
| 232 | // others are used by testSignalHandlerNotReturn. |
| 233 | enum class TestStatus { |
| 234 | kNone, |
| 235 | kRaiseFirst, |
| 236 | kHandleFirst, |
| 237 | kRaiseSecond, |
| 238 | kHandleSecond, |
| 239 | }; |
| 240 | |
| 241 | // State transition helper for testSignalHandlerNotReturn. |
| 242 | class SignalHandlerTestStatus { |
| 243 | public: |
| 244 | SignalHandlerTestStatus() : state_(TestStatus::kNone) { |
| 245 | } |
| 246 | |
| 247 | TestStatus Get() { |
| 248 | return state_; |
| 249 | } |
| 250 | |
| 251 | void Reset() { |
| 252 | Set(TestStatus::kNone); |
| 253 | } |
| 254 | |
| 255 | void Set(TestStatus state) { |
| 256 | switch (state) { |
| 257 | case TestStatus::kNone: |
| 258 | AssertState(TestStatus::kHandleSecond); |
| 259 | break; |
| 260 | |
| 261 | case TestStatus::kRaiseFirst: |
| 262 | AssertState(TestStatus::kNone); |
| 263 | break; |
| 264 | |
| 265 | case TestStatus::kHandleFirst: |
| 266 | AssertState(TestStatus::kRaiseFirst); |
| 267 | break; |
| 268 | |
| 269 | case TestStatus::kRaiseSecond: |
| 270 | AssertState(TestStatus::kHandleFirst); |
| 271 | break; |
| 272 | |
| 273 | case TestStatus::kHandleSecond: |
| 274 | AssertState(TestStatus::kRaiseSecond); |
| 275 | break; |
| 276 | |
| 277 | default: |
| 278 | printf("ERROR: unknown state\n"); |
| 279 | abort(); |
| 280 | } |
| 281 | |
| 282 | state_ = state; |
| 283 | } |
| 284 | |
| 285 | private: |
| 286 | TestStatus state_; |
| 287 | |
| 288 | void AssertState(TestStatus expected) { |
| 289 | if (state_ != expected) { |
| 290 | printf("ERROR: unexpected state, was %d, expected %d\n", state_, expected); |
| 291 | } |
| 292 | } |
| 293 | }; |
| 294 | |
| 295 | static SignalHandlerTestStatus gSignalTestStatus; |
| 296 | // The context is used to jump out from signal handler. |
| 297 | static sigjmp_buf gSignalTestJmpBuf; |
| 298 | |
| 299 | // Test whether NativeBridge can receive future signal when its handler doesn't return. |
| 300 | // |
| 301 | // Control path: |
| 302 | // 1. Raise first SIGSEGV in test function. |
| 303 | // 2. Raise another SIGSEGV in NativeBridge's signal handler which is handling |
| 304 | // the first SIGSEGV. |
| 305 | // 3. Expect that NativeBridge's signal handler invokes again. And jump back |
| 306 | // to test function in when handling second SIGSEGV. |
| 307 | // 4. Exit test. |
| 308 | // |
| 309 | // NOTE: sigchain should be aware that "special signal handler" may not return. |
| 310 | // Pay attention if this case fails. |
| 311 | static void trampoline_Java_Main_testSignalHandlerNotReturn(JNIEnv*, jclass) { |
| 312 | if (gSignalTestStatus.Get() != TestStatus::kNone) { |
| 313 | printf("ERROR: test already started?\n"); |
| 314 | return; |
| 315 | } |
| 316 | printf("start testSignalHandlerNotReturn\n"); |
| 317 | |
| 318 | if (sigsetjmp(gSignalTestJmpBuf, 1) == 0) { |
| 319 | gSignalTestStatus.Set(TestStatus::kRaiseFirst); |
| 320 | printf("raising first SIGSEGV\n"); |
| 321 | raise_sigsegv(); |
| 322 | } else { |
| 323 | // jump to here from signal handler when handling second SIGSEGV. |
| 324 | if (gSignalTestStatus.Get() != TestStatus::kHandleSecond) { |
| 325 | printf("ERROR: not jump from second SIGSEGV?\n"); |
| 326 | return; |
| 327 | } |
| 328 | gSignalTestStatus.Reset(); |
| 329 | printf("back to test from signal handler via siglongjmp(), and done!\n"); |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | // Signal handler for testSignalHandlerNotReturn. |
| 334 | // This handler won't return. |
| 335 | static bool NotReturnSignalHandler() { |
| 336 | if (gSignalTestStatus.Get() == TestStatus::kRaiseFirst) { |
| 337 | // handling first SIGSEGV |
| 338 | gSignalTestStatus.Set(TestStatus::kHandleFirst); |
| 339 | printf("handling first SIGSEGV, will raise another\n"); |
| 340 | sigset_t set; |
| 341 | sigemptyset(&set); |
| 342 | sigaddset(&set, SIGSEGV); |
| 343 | printf("unblock SIGSEGV in handler\n"); |
| 344 | sigprocmask(SIG_UNBLOCK, &set, nullptr); |
| 345 | gSignalTestStatus.Set(TestStatus::kRaiseSecond); |
| 346 | printf("raising second SIGSEGV\n"); |
| 347 | raise_sigsegv(); // raise second SIGSEGV |
| 348 | } else if (gSignalTestStatus.Get() == TestStatus::kRaiseSecond) { |
| 349 | // handling second SIGSEGV |
| 350 | gSignalTestStatus.Set(TestStatus::kHandleSecond); |
| 351 | printf("handling second SIGSEGV, will jump back to test function\n"); |
| 352 | siglongjmp(gSignalTestJmpBuf, 1); |
| 353 | } |
| 354 | printf("ERROR: should not reach here!\n"); |
| 355 | return false; |
| 356 | } |
| 357 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 358 | NativeBridgeMethod gNativeBridgeMethods[] = { |
| 359 | { "JNI_OnLoad", "", true, nullptr, |
| 360 | reinterpret_cast<void*>(trampoline_JNI_OnLoad) }, |
| 361 | { "booleanMethod", "(ZZZZZZZZZZ)Z", true, nullptr, |
| 362 | reinterpret_cast<void*>(trampoline_Java_Main_booleanMethod) }, |
| 363 | { "byteMethod", "(BBBBBBBBBB)B", true, nullptr, |
| 364 | reinterpret_cast<void*>(trampoline_Java_Main_byteMethod) }, |
| 365 | { "charMethod", "(CCCCCCCCCC)C", true, nullptr, |
| 366 | reinterpret_cast<void*>(trampoline_Java_Main_charMethod) }, |
| 367 | { "shortMethod", "(SSSSSSSSSS)S", true, nullptr, |
| 368 | reinterpret_cast<void*>(trampoline_Java_Main_shortMethod) }, |
| 369 | { "testCallStaticVoidMethodOnSubClassNative", "()V", true, nullptr, |
| 370 | reinterpret_cast<void*>(trampoline_Java_Main_testCallStaticVoidMethodOnSubClassNative) }, |
| 371 | { "testFindClassOnAttachedNativeThread", "()V", true, nullptr, |
| 372 | reinterpret_cast<void*>(trampoline_Java_Main_testFindClassOnAttachedNativeThread) }, |
| 373 | { "testFindFieldOnAttachedNativeThreadNative", "()V", true, nullptr, |
| 374 | reinterpret_cast<void*>(trampoline_Java_Main_testFindFieldOnAttachedNativeThreadNative) }, |
| 375 | { "testGetMirandaMethodNative", "()Ljava/lang/reflect/Method;", true, nullptr, |
| 376 | reinterpret_cast<void*>(trampoline_Java_Main_testGetMirandaMethodNative) }, |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 377 | { "testNewStringObject", "()V", true, nullptr, |
| 378 | reinterpret_cast<void*>(trampoline_Java_Main_testNewStringObject) }, |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 379 | { "testZeroLengthByteBuffers", "()V", true, nullptr, |
| 380 | reinterpret_cast<void*>(trampoline_Java_Main_testZeroLengthByteBuffers) }, |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 381 | { "testSignal", "()I", true, nullptr, |
| 382 | reinterpret_cast<void*>(trampoline_Java_Main_testSignal) }, |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 383 | { "testSignalHandlerNotReturn", "()V", true, nullptr, |
| 384 | reinterpret_cast<void*>(trampoline_Java_Main_testSignalHandlerNotReturn) }, |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 385 | }; |
| 386 | |
| 387 | static NativeBridgeMethod* find_native_bridge_method(const char *name) { |
| 388 | const char* pname = name; |
| 389 | if (strncmp(name, "Java_Main_", 10) == 0) { |
| 390 | pname += 10; |
| 391 | } |
| 392 | |
| 393 | for (size_t i = 0; i < sizeof(gNativeBridgeMethods) / sizeof(gNativeBridgeMethods[0]); i++) { |
| 394 | if (strcmp(pname, gNativeBridgeMethods[i].name) == 0) { |
| 395 | return &gNativeBridgeMethods[i]; |
| 396 | } |
| 397 | } |
| 398 | return nullptr; |
| 399 | } |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 400 | |
| 401 | // NativeBridgeCallbacks implementations |
jgu21 | a6da74e | 2014-09-10 06:57:17 -0400 | [diff] [blame] | 402 | extern "C" bool native_bridge_initialize(const android::NativeBridgeRuntimeCallbacks* art_cbs, |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 403 | const char* app_code_cache_dir, |
| 404 | const char* isa ATTRIBUTE_UNUSED) { |
Calin Juravle | 44a3506 | 2014-10-22 20:17:58 +0100 | [diff] [blame] | 405 | struct stat st; |
Calin Juravle | ef885cd | 2015-12-14 14:35:17 +0000 | [diff] [blame] | 406 | if (app_code_cache_dir != nullptr) { |
| 407 | if (stat(app_code_cache_dir, &st) == 0) { |
Calin Juravle | eda4dfa | 2016-02-15 18:35:22 +0000 | [diff] [blame] | 408 | if (!S_ISDIR(st.st_mode)) { |
Calin Juravle | ef885cd | 2015-12-14 14:35:17 +0000 | [diff] [blame] | 409 | printf("Code cache is not a directory.\n"); |
| 410 | } |
| 411 | } else { |
| 412 | perror("Error when stat-ing the code_cache:"); |
| 413 | } |
Calin Juravle | 44a3506 | 2014-10-22 20:17:58 +0100 | [diff] [blame] | 414 | } |
Calin Juravle | ef885cd | 2015-12-14 14:35:17 +0000 | [diff] [blame] | 415 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 416 | if (art_cbs != nullptr) { |
| 417 | gNativeBridgeArtCallbacks = art_cbs; |
| 418 | printf("Native bridge initialized.\n"); |
| 419 | } |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 420 | return true; |
| 421 | } |
| 422 | |
| 423 | extern "C" void* native_bridge_loadLibrary(const char* libpath, int flag) { |
Yanbing Jiang | 2abb686 | 2017-01-17 13:23:43 +0800 | [diff] [blame] | 424 | if (strstr(libpath, "libinvalid.so") != nullptr) { |
| 425 | printf("Was to load 'libinvalid.so', force fail.\n"); |
| 426 | return nullptr; |
| 427 | } |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 428 | size_t len = strlen(libpath); |
| 429 | char* tmp = new char[len + 10]; |
| 430 | strncpy(tmp, libpath, len); |
| 431 | tmp[len - 3] = '2'; |
| 432 | tmp[len - 2] = '.'; |
| 433 | tmp[len - 1] = 's'; |
| 434 | tmp[len] = 'o'; |
| 435 | tmp[len + 1] = 0; |
| 436 | void* handle = dlopen(tmp, flag); |
| 437 | delete[] tmp; |
| 438 | |
| 439 | if (handle == nullptr) { |
| 440 | printf("Handle = nullptr!\n"); |
| 441 | printf("Was looking for %s.\n", libpath); |
| 442 | printf("Error = %s.\n", dlerror()); |
Yanbing Jiang | 2abb686 | 2017-01-17 13:23:43 +0800 | [diff] [blame] | 443 | char cwd[1024] = {'\0'}; |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 444 | if (getcwd(cwd, sizeof(cwd)) != nullptr) { |
| 445 | printf("Current working dir: %s\n", cwd); |
| 446 | } |
| 447 | } |
| 448 | return handle; |
| 449 | } |
| 450 | |
| 451 | extern "C" void* native_bridge_getTrampoline(void* handle, const char* name, const char* shorty, |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 452 | uint32_t len ATTRIBUTE_UNUSED) { |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 453 | printf("Getting trampoline for %s with shorty %s.\n", name, shorty); |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 454 | |
| 455 | // The name here is actually the JNI name, so we can directly do the lookup. |
| 456 | void* sym = dlsym(handle, name); |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 457 | NativeBridgeMethod* method = find_native_bridge_method(name); |
| 458 | if (method == nullptr) |
| 459 | return nullptr; |
| 460 | method->fnPtr = sym; |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 461 | |
Yong WU | f7a68c1 | 2014-08-03 16:06:52 +0800 | [diff] [blame] | 462 | return method->trampoline; |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 463 | } |
| 464 | |
| 465 | extern "C" bool native_bridge_isSupported(const char* libpath) { |
| 466 | printf("Checking for support.\n"); |
| 467 | |
| 468 | if (libpath == nullptr) { |
| 469 | return false; |
| 470 | } |
| 471 | // We don't want to hijack javacore. So we should get libarttest... |
| 472 | return strcmp(libpath, "libjavacore.so") != 0; |
| 473 | } |
| 474 | |
jgu21 | a6da74e | 2014-09-10 06:57:17 -0400 | [diff] [blame] | 475 | namespace android { |
| 476 | |
| 477 | // Environment values required by the apps running with native bridge. |
| 478 | struct NativeBridgeRuntimeValues { |
| 479 | const char* os_arch; |
| 480 | const char* cpu_abi; |
| 481 | const char* cpu_abi2; |
| 482 | const char* *supported_abis; |
| 483 | int32_t abi_count; |
| 484 | }; |
| 485 | |
| 486 | } // namespace android |
| 487 | |
| 488 | const char* supported_abis[] = { |
| 489 | "supported1", "supported2", "supported3" |
| 490 | }; |
| 491 | |
| 492 | const struct android::NativeBridgeRuntimeValues nb_env { |
| 493 | .os_arch = "os.arch", |
| 494 | .cpu_abi = "cpu_abi", |
| 495 | .cpu_abi2 = "cpu_abi2", |
| 496 | .supported_abis = supported_abis, |
| 497 | .abi_count = 3 |
| 498 | }; |
| 499 | |
| 500 | extern "C" const struct android::NativeBridgeRuntimeValues* native_bridge_getAppEnv( |
| 501 | const char* abi) { |
| 502 | printf("Checking for getEnvValues.\n"); |
| 503 | |
| 504 | if (abi == nullptr) { |
| 505 | return nullptr; |
| 506 | } |
| 507 | |
| 508 | return &nb_env; |
| 509 | } |
| 510 | |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 511 | // v2 parts. |
| 512 | |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 513 | extern "C" bool native_bridge_isCompatibleWith(uint32_t bridge_version ATTRIBUTE_UNUSED) { |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 514 | return true; |
| 515 | } |
| 516 | |
| 517 | #if defined(__i386__) || defined(__x86_64__) |
| 518 | #if defined(__APPLE__) |
| 519 | #define ucontext __darwin_ucontext |
| 520 | |
| 521 | #if defined(__x86_64__) |
| 522 | // 64 bit mac build. |
| 523 | #define CTX_EIP uc_mcontext->__ss.__rip |
| 524 | #else |
| 525 | // 32 bit mac build. |
| 526 | #define CTX_EIP uc_mcontext->__ss.__eip |
| 527 | #endif |
| 528 | |
| 529 | #elif defined(__x86_64__) |
| 530 | // 64 bit linux build. |
| 531 | #define CTX_EIP uc_mcontext.gregs[REG_RIP] |
| 532 | #else |
| 533 | // 32 bit linux build. |
| 534 | #define CTX_EIP uc_mcontext.gregs[REG_EIP] |
| 535 | #endif |
| 536 | #endif |
| 537 | |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 538 | static bool StandardSignalHandler(int sig, siginfo_t* info ATTRIBUTE_UNUSED, |
| 539 | void* context) { |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 540 | if (sig == SIGSEGV) { |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 541 | #if defined(__arm__) |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 542 | struct ucontext *uc = reinterpret_cast<struct ucontext*>(context); |
| 543 | struct sigcontext *sc = reinterpret_cast<struct sigcontext*>(&uc->uc_mcontext); |
| 544 | sc->arm_pc += 2; // Skip instruction causing segv & sigill. |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 545 | #elif defined(__aarch64__) |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 546 | struct ucontext *uc = reinterpret_cast<struct ucontext*>(context); |
| 547 | struct sigcontext *sc = reinterpret_cast<struct sigcontext*>(&uc->uc_mcontext); |
| 548 | sc->pc += 4; // Skip instruction causing segv & sigill. |
Andreas Gampe | fd28541 | 2015-08-26 14:24:26 -0700 | [diff] [blame] | 549 | #elif defined(__i386__) |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 550 | struct ucontext *uc = reinterpret_cast<struct ucontext*>(context); |
| 551 | uc->CTX_EIP += 3; |
Andreas Gampe | fd28541 | 2015-08-26 14:24:26 -0700 | [diff] [blame] | 552 | #elif defined(__x86_64__) |
| 553 | struct ucontext *uc = reinterpret_cast<struct ucontext*>(context); |
| 554 | uc->CTX_EIP += 2; |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 555 | #else |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 556 | UNUSED(context); |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 557 | #endif |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 558 | } |
jgu21 | 0d6f026 | 2015-09-22 03:47:43 -0400 | [diff] [blame] | 559 | |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 560 | // We handled this... |
| 561 | return true; |
| 562 | } |
| 563 | |
Josh Gao | 6b2018f | 2017-05-04 13:55:28 -0700 | [diff] [blame] | 564 | // A dummy special handler, continueing after the faulting location. This code comes from |
| 565 | // 004-SignalTest. |
| 566 | static bool nb_signalhandler(int sig, siginfo_t* info, void* context) { |
| 567 | printf("NB signal handler with signal %d.\n", sig); |
| 568 | |
| 569 | if (gSignalTestStatus.Get() == TestStatus::kNone) { |
| 570 | return StandardSignalHandler(sig, info, context); |
| 571 | } else if (sig == SIGSEGV) { |
| 572 | return NotReturnSignalHandler(); |
| 573 | } else { |
| 574 | printf("ERROR: should not reach here!\n"); |
| 575 | return false; |
| 576 | } |
| 577 | } |
| 578 | |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 579 | static ::android::NativeBridgeSignalHandlerFn native_bridge_getSignalHandler(int signal) { |
jgu21 | 0c7c55c | 2015-07-24 13:40:33 +0800 | [diff] [blame] | 580 | // Test segv for already claimed signal, and sigill for not claimed signal |
| 581 | if ((signal == SIGSEGV) || (signal == SIGILL)) { |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 582 | return &nb_signalhandler; |
| 583 | } |
| 584 | return nullptr; |
| 585 | } |
| 586 | |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 587 | extern "C" int native_bridge_unloadLibrary(void* handle ATTRIBUTE_UNUSED) { |
| 588 | printf("dlclose() in native bridge.\n"); |
| 589 | return 0; |
| 590 | } |
| 591 | |
Dimitry Ivanov | a75ceb6 | 2016-11-04 18:03:37 -0700 | [diff] [blame] | 592 | extern "C" const char* native_bridge_getError() { |
Yanbing Jiang | 2abb686 | 2017-01-17 13:23:43 +0800 | [diff] [blame] | 593 | printf("getError() in native bridge.\n"); |
| 594 | return ""; |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 595 | } |
| 596 | |
| 597 | extern "C" bool native_bridge_isPathSupported(const char* library_path ATTRIBUTE_UNUSED) { |
| 598 | printf("Checking for path support in native bridge.\n"); |
| 599 | return false; |
| 600 | } |
| 601 | |
Zhenhua WANG | 11cb79f | 2017-02-27 13:32:36 +0800 | [diff] [blame] | 602 | extern "C" bool native_bridge_initAnonymousNamespace(const char* public_ns_sonames ATTRIBUTE_UNUSED, |
| 603 | const char* anon_ns_library_path ATTRIBUTE_UNUSED) { |
| 604 | printf("Initializing anonymous namespace in native bridge.\n"); |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 605 | return false; |
| 606 | } |
| 607 | |
| 608 | extern "C" android::native_bridge_namespace_t* |
| 609 | native_bridge_createNamespace(const char* name ATTRIBUTE_UNUSED, |
| 610 | const char* ld_library_path ATTRIBUTE_UNUSED, |
| 611 | const char* default_library_path ATTRIBUTE_UNUSED, |
| 612 | uint64_t type ATTRIBUTE_UNUSED, |
| 613 | const char* permitted_when_isolated_path ATTRIBUTE_UNUSED, |
| 614 | android::native_bridge_namespace_t* parent_ns ATTRIBUTE_UNUSED) { |
| 615 | printf("Creating namespace in native bridge.\n"); |
| 616 | return nullptr; |
| 617 | } |
| 618 | |
Zhenhua WANG | 11cb79f | 2017-02-27 13:32:36 +0800 | [diff] [blame] | 619 | extern "C" bool native_bridge_linkNamespaces(android::native_bridge_namespace_t* from ATTRIBUTE_UNUSED, |
| 620 | android::native_bridge_namespace_t* to ATTRIBUTE_UNUSED, |
| 621 | const char* shared_libs_sonames ATTRIBUTE_UNUSED) { |
| 622 | printf("Linking namespaces in native bridge.\n"); |
| 623 | return false; |
| 624 | } |
| 625 | |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 626 | extern "C" void* native_bridge_loadLibraryExt(const char* libpath ATTRIBUTE_UNUSED, |
| 627 | int flag ATTRIBUTE_UNUSED, |
| 628 | android::native_bridge_namespace_t* ns ATTRIBUTE_UNUSED) { |
| 629 | printf("Loading library with Extension in native bridge.\n"); |
| 630 | return nullptr; |
| 631 | } |
Andreas Gampe | 03c2cc8 | 2015-05-22 18:31:50 -0700 | [diff] [blame] | 632 | |
Calin Juravle | c842352 | 2014-08-12 20:55:20 +0100 | [diff] [blame] | 633 | // "NativeBridgeItf" is effectively an API (it is the name of the symbol that will be loaded |
| 634 | // by the native bridge library). |
| 635 | android::NativeBridgeCallbacks NativeBridgeItf { |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 636 | // v1 |
| 637 | .version = 3, |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 638 | .initialize = &native_bridge_initialize, |
| 639 | .loadLibrary = &native_bridge_loadLibrary, |
| 640 | .getTrampoline = &native_bridge_getTrampoline, |
jgu21 | a6da74e | 2014-09-10 06:57:17 -0400 | [diff] [blame] | 641 | .isSupported = &native_bridge_isSupported, |
Andreas Gampe | 540cc3d | 2015-05-20 18:01:30 -0700 | [diff] [blame] | 642 | .getAppEnv = &native_bridge_getAppEnv, |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 643 | // v2 |
| 644 | .isCompatibleWith = &native_bridge_isCompatibleWith, |
| 645 | .getSignalHandler = &native_bridge_getSignalHandler, |
| 646 | // v3 |
| 647 | .unloadLibrary = &native_bridge_unloadLibrary, |
| 648 | .getError = &native_bridge_getError, |
| 649 | .isPathSupported = &native_bridge_isPathSupported, |
Zhenhua WANG | 11cb79f | 2017-02-27 13:32:36 +0800 | [diff] [blame] | 650 | .initAnonymousNamespace = &native_bridge_initAnonymousNamespace, |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 651 | .createNamespace = &native_bridge_createNamespace, |
Zhenhua WANG | 11cb79f | 2017-02-27 13:32:36 +0800 | [diff] [blame] | 652 | .linkNamespaces = &native_bridge_linkNamespaces, |
Zhenhua WANG | 8447e6d | 2016-05-30 11:10:29 +0800 | [diff] [blame] | 653 | .loadLibraryExt = &native_bridge_loadLibraryExt |
Andreas Gampe | 855564b | 2014-07-25 02:32:19 -0700 | [diff] [blame] | 654 | }; |