Add m-esr52 at 52.6.0

1 files changed, 465 insertions, 0 deletions

diff --git a/mozglue/android/APKOpen.cpp b/mozglue/android/APKOpen.cpp
new file mode 100644
index 000000000..1aabc155e
--- /dev/null
+++ b/mozglue/android/APKOpen.cpp
@@ -0,0 +1,465 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This custom library loading code is only meant to be called
+ * during initialization. As a result, it takes no special 
+ * precautions to be threadsafe. Any of the library loading functions
+ * like mozload should not be available to other code.
+ */
+
+#include <jni.h>
+#include <android/log.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/limits.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <zlib.h>
+#include "dlfcn.h"
+#include "APKOpen.h"
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/prctl.h>
+#include "sqlite3.h"
+#include "SQLiteBridge.h"
+#include "NSSBridge.h"
+#include "ElfLoader.h"
+#include "application.ini.h"
+
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "XREChildData.h"
+
+/* Android headers don't define RUSAGE_THREAD */
+#ifndef RUSAGE_THREAD
+#define RUSAGE_THREAD 1
+#endif
+
+#ifndef RELEASE_OR_BETA
+/* Official builds have the debuggable flag set to false, which disables
+ * the backtrace dumper from bionic. However, as it is useful for native
+ * crashes happening before the crash reporter is registered, re-enable
+ * it on non release builds (i.e. nightly and aurora).
+ * Using a constructor so that it is re-enabled as soon as libmozglue.so
+ * is loaded.
+ */
+__attribute__((constructor))
+void make_dumpable() {
+  prctl(PR_SET_DUMPABLE, 1);
+}
+#endif
+
+extern "C" {
+/*
+ * To work around http://code.google.com/p/android/issues/detail?id=23203
+ * we don't link with the crt objects. In some configurations, this means
+ * a lack of the __dso_handle symbol because it is defined there, and
+ * depending on the android platform and ndk versions used, it may or may
+ * not be defined in libc.so. In the latter case, we fail to link. Defining
+ * it here as weak makes us provide the symbol when it's not provided by
+ * the crt objects, making the change transparent for future NDKs that
+ * would fix the original problem. On older NDKs, it is not a problem
+ * either because the way __dso_handle was used was already broken (and
+ * the custom linker works around it).
+ */
+  NS_EXPORT __attribute__((weak)) void *__dso_handle;
+}
+
+typedef int mozglueresult;
+
+enum StartupEvent {
+#define mozilla_StartupTimeline_Event(ev, z) ev,
+#include "StartupTimeline.h"
+#undef mozilla_StartupTimeline_Event
+  MAX_STARTUP_EVENT_ID
+};
+
+using namespace mozilla;
+
+static const int MAX_MAPPING_INFO = 32;
+static mapping_info lib_mapping[MAX_MAPPING_INFO];
+
+NS_EXPORT const struct mapping_info *
+getLibraryMapping()
+{
+  return lib_mapping;
+}
+
+void
+JNI_Throw(JNIEnv* jenv, const char* classname, const char* msg)
+{
+    __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Throw\n");
+    jclass cls = jenv->FindClass(classname);
+    if (cls == nullptr) {
+        __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't find exception class (or exception pending) %s\n", classname);
+        exit(FAILURE);
+    }
+    int rc = jenv->ThrowNew(cls, msg);
+    if (rc < 0) {
+        __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Error throwing exception %s\n", msg);
+        exit(FAILURE);
+    }
+    jenv->DeleteLocalRef(cls);
+}
+
+namespace {
+    JavaVM* sJavaVM;
+    pthread_t sJavaUiThread;
+}
+
+void
+abortThroughJava(const char* msg)
+{
+    struct sigaction sigact = {};
+    if (SEGVHandler::__wrap_sigaction(SIGSEGV, nullptr, &sigact)) {
+        return; // sigaction call failed.
+    }
+
+    Dl_info info = {};
+    if ((sigact.sa_flags & SA_SIGINFO) &&
+        __wrap_dladdr(reinterpret_cast<void*>(sigact.sa_sigaction), &info) &&
+        info.dli_fname && strstr(info.dli_fname, "libxul.so")) {
+
+        return; // Existing signal handler is in libxul (i.e. we have crash reporter).
+    }
+
+    JNIEnv* env = nullptr;
+    if (!sJavaVM || sJavaVM->AttachCurrentThreadAsDaemon(&env, nullptr) != JNI_OK) {
+        return;
+    }
+
+    if (!env || env->PushLocalFrame(2) != JNI_OK) {
+        return;
+    }
+
+    jclass loader = env->FindClass("org/mozilla/gecko/mozglue/GeckoLoader");
+    if (!loader) {
+        return;
+    }
+
+    jmethodID method = env->GetStaticMethodID(loader, "abort", "(Ljava/lang/String;)V");
+    jstring str = env->NewStringUTF(msg);
+
+    if (method && str) {
+        env->CallStaticVoidMethod(loader, method, str);
+    }
+
+    env->PopLocalFrame(nullptr);
+}
+
+NS_EXPORT pthread_t
+getJavaUiThread()
+{
+    return sJavaUiThread;
+}
+
+extern "C" NS_EXPORT void MOZ_JNICALL
+Java_org_mozilla_gecko_GeckoThread_registerUiThread(JNIEnv*, jclass)
+{
+    sJavaUiThread = pthread_self();
+}
+
+static void * xul_handle = nullptr;
+#ifndef MOZ_FOLD_LIBS
+static void * sqlite_handle = nullptr;
+static void * nspr_handle = nullptr;
+static void * plc_handle = nullptr;
+#else
+#define sqlite_handle nss_handle
+#define nspr_handle nss_handle
+#define plc_handle nss_handle
+#endif
+static void * nss_handle = nullptr;
+
+template <typename T> inline void
+xul_dlsym(const char *symbolName, T *value)
+{
+  *value = (T) (uintptr_t) __wrap_dlsym(xul_handle, symbolName);
+}
+
+static int mapping_count = 0;
+
+extern "C" void
+report_mapping(char *name, void *base, uint32_t len, uint32_t offset)
+{
+  if (mapping_count >= MAX_MAPPING_INFO)
+    return;
+
+  struct mapping_info *info = &lib_mapping[mapping_count++];
+  info->name = strdup(name);
+  info->base = (uintptr_t)base;
+  info->len = len;
+  info->offset = offset;
+}
+
+extern "C" void
+delete_mapping(const char *name)
+{
+  for (int pos = 0; pos < mapping_count; ++pos) {
+    struct mapping_info *info = &lib_mapping[pos];
+    if (!strcmp(info->name, name)) {
+      struct mapping_info *last = &lib_mapping[mapping_count - 1];
+      free(info->name);
+      *info = *last;
+      --mapping_count;
+      break;
+    }
+  }
+}
+
+static void*
+dlopenAPKLibrary(const char* apkName, const char* libraryName)
+{
+#define APK_ASSETS_PATH "!/assets/" ANDROID_CPU_ARCH "/"
+  size_t filenameLength = strlen(apkName) +
+    sizeof(APK_ASSETS_PATH) + 	// includes \0 terminator
+    strlen(libraryName);
+  auto file = MakeUnique<char[]>(filenameLength);
+  snprintf(file.get(), filenameLength, "%s" APK_ASSETS_PATH "%s",
+	   apkName, libraryName);
+  return __wrap_dlopen(file.get(), RTLD_GLOBAL | RTLD_LAZY);
+#undef APK_ASSETS_PATH
+}
+static mozglueresult
+loadGeckoLibs(const char *apkName)
+{
+  TimeStamp t0 = TimeStamp::Now();
+  struct rusage usage1_thread, usage1;
+  getrusage(RUSAGE_THREAD, &usage1_thread);
+  getrusage(RUSAGE_SELF, &usage1);
+
+  xul_handle = dlopenAPKLibrary(apkName, "libxul.so");
+  if (!xul_handle) {
+    __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libxul!");
+    return FAILURE;
+  }
+
+  void (*XRE_StartupTimelineRecord)(int, TimeStamp);
+  xul_dlsym("XRE_StartupTimelineRecord", &XRE_StartupTimelineRecord);
+
+  TimeStamp t1 = TimeStamp::Now();
+  struct rusage usage2_thread, usage2;
+  getrusage(RUSAGE_THREAD, &usage2_thread);
+  getrusage(RUSAGE_SELF, &usage2);
+
+#define RUSAGE_TIMEDIFF(u1, u2, field) \
+  ((u2.ru_ ## field.tv_sec - u1.ru_ ## field.tv_sec) * 1000 + \
+   (u2.ru_ ## field.tv_usec - u1.ru_ ## field.tv_usec) / 1000)
+
+  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Loaded libs in %fms total, %ldms(%ldms) user, %ldms(%ldms) system, %ld(%ld) faults",
+                      (t1 - t0).ToMilliseconds(),
+                      RUSAGE_TIMEDIFF(usage1_thread, usage2_thread, utime),
+                      RUSAGE_TIMEDIFF(usage1, usage2, utime),
+                      RUSAGE_TIMEDIFF(usage1_thread, usage2_thread, stime),
+                      RUSAGE_TIMEDIFF(usage1, usage2, stime),
+                      usage2_thread.ru_majflt - usage1_thread.ru_majflt,
+                      usage2.ru_majflt - usage1.ru_majflt);
+
+  XRE_StartupTimelineRecord(LINKER_INITIALIZED, t0);
+  XRE_StartupTimelineRecord(LIBRARIES_LOADED, t1);
+  return SUCCESS;
+}
+
+static mozglueresult loadNSSLibs(const char *apkName);
+
+static mozglueresult
+loadSQLiteLibs(const char *apkName)
+{
+  if (sqlite_handle)
+    return SUCCESS;
+
+#ifdef MOZ_FOLD_LIBS
+  if (loadNSSLibs(apkName) != SUCCESS)
+    return FAILURE;
+#else
+
+  sqlite_handle = dlopenAPKLibrary(apkName, "libmozsqlite3.so");
+  if (!sqlite_handle) {
+    __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libmozsqlite3!");
+    return FAILURE;
+  }
+#endif
+
+  setup_sqlite_functions(sqlite_handle);
+  return SUCCESS;
+}
+
+static mozglueresult
+loadNSSLibs(const char *apkName)
+{
+  if (nss_handle && nspr_handle && plc_handle)
+    return SUCCESS;
+
+  nss_handle = dlopenAPKLibrary(apkName, "libnss3.so");
+
+#ifndef MOZ_FOLD_LIBS
+  nspr_handle = dlopenAPKLibrary(apkName, "libnspr4.so");
+
+  plc_handle = dlopenAPKLibrary(apkName, "libplc4.so");
+#endif
+
+  if (!nss_handle) {
+    __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libnss3!");
+    return FAILURE;
+  }
+
+#ifndef MOZ_FOLD_LIBS
+  if (!nspr_handle) {
+    __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libnspr4!");
+    return FAILURE;
+  }
+
+  if (!plc_handle) {
+    __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libplc4!");
+    return FAILURE;
+  }
+#endif
+
+  return setup_nss_functions(nss_handle, nspr_handle, plc_handle);
+}
+
+extern "C" NS_EXPORT void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_GeckoLoader_extractGeckoLibsNative(
+    JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName)
+{
+  MOZ_ALWAYS_TRUE(!jenv->GetJavaVM(&sJavaVM));
+
+  const char* apkName = jenv->GetStringUTFChars(jApkName, nullptr);
+  if (apkName == nullptr) {
+    return;
+  }
+
+  // Extract and cache native lib to allow for efficient startup from cache.
+  void* handle = dlopenAPKLibrary(apkName, "libxul.so");
+  if (handle) {
+    __android_log_print(ANDROID_LOG_INFO, "GeckoLibLoad",
+                        "Extracted and cached libxul.so.");
+    // We have extracted and cached the lib, we can close it now.
+    __wrap_dlclose(handle);
+  } else {
+    JNI_Throw(jenv, "java/lang/Exception", "Error extracting gecko libraries");
+  }
+
+  jenv->ReleaseStringUTFChars(jApkName, apkName);
+}
+
+extern "C" NS_EXPORT void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_GeckoLoader_loadGeckoLibsNative(JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName)
+{
+  jenv->GetJavaVM(&sJavaVM);
+
+  const char* str;
+  // XXX: java doesn't give us true UTF8, we should figure out something
+  // better to do here
+  str = jenv->GetStringUTFChars(jApkName, nullptr);
+  if (str == nullptr)
+    return;
+
+  int res = loadGeckoLibs(str);
+  if (res != SUCCESS) {
+    JNI_Throw(jenv, "java/lang/Exception", "Error loading gecko libraries");
+  }
+  jenv->ReleaseStringUTFChars(jApkName, str);
+}
+
+extern "C" NS_EXPORT void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_GeckoLoader_loadSQLiteLibsNative(JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName) {
+  const char* str;
+  // XXX: java doesn't give us true UTF8, we should figure out something
+  // better to do here
+  str = jenv->GetStringUTFChars(jApkName, nullptr);
+  if (str == nullptr)
+    return;
+
+  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load sqlite start\n");
+  mozglueresult rv = loadSQLiteLibs(str);
+  if (rv != SUCCESS) {
+      JNI_Throw(jenv, "java/lang/Exception", "Error loading sqlite libraries");
+  }
+  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load sqlite done\n");
+  jenv->ReleaseStringUTFChars(jApkName, str);
+}
+
+extern "C" NS_EXPORT void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_GeckoLoader_loadNSSLibsNative(JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName) {
+  const char* str;
+  // XXX: java doesn't give us true UTF8, we should figure out something
+  // better to do here
+  str = jenv->GetStringUTFChars(jApkName, nullptr);
+  if (str == nullptr)
+    return;
+
+  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load nss start\n");
+  mozglueresult rv = loadNSSLibs(str);
+  if (rv != SUCCESS) {
+    JNI_Throw(jenv, "java/lang/Exception", "Error loading nss libraries");
+  }
+  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load nss done\n");
+  jenv->ReleaseStringUTFChars(jApkName, str);
+}
+
+typedef void (*GeckoStart_t)(JNIEnv*, char*, const nsXREAppData*);
+
+extern "C" NS_EXPORT void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_GeckoLoader_nativeRun(JNIEnv *jenv, jclass jc, jstring jargs)
+{
+  GeckoStart_t GeckoStart;
+  xul_dlsym("GeckoStart", &GeckoStart);
+  if (GeckoStart == nullptr)
+    return;
+  // XXX: java doesn't give us true UTF8, we should figure out something
+  // better to do here
+  int len = jenv->GetStringUTFLength(jargs);
+  // GeckoStart needs to write in the args buffer, so we need a copy.
+  char *args = (char *) malloc(len + 1);
+  jenv->GetStringUTFRegion(jargs, 0, len, args);
+  args[len] = '\0';
+  ElfLoader::Singleton.ExpectShutdown(false);
+  GeckoStart(jenv, args, &sAppData);
+  ElfLoader::Singleton.ExpectShutdown(true);
+  free(args);
+}
+
+typedef int GeckoProcessType;
+
+extern "C" NS_EXPORT mozglueresult
+ChildProcessInit(int argc, char* argv[])
+{
+  int i;
+  for (i = 0; i < (argc - 1); i++) {
+    if (strcmp(argv[i], "-greomni"))
+      continue;
+
+    i = i + 1;
+    break;
+  }
+
+  if (loadNSSLibs(argv[i]) != SUCCESS) {
+    return FAILURE;
+  }
+  if (loadSQLiteLibs(argv[i]) != SUCCESS) {
+    return FAILURE;
+  }
+  if (loadGeckoLibs(argv[i]) != SUCCESS) {
+    return FAILURE;
+  }
+
+  void (*fXRE_SetProcessType)(char*);
+  xul_dlsym("XRE_SetProcessType", &fXRE_SetProcessType);
+
+  mozglueresult (*fXRE_InitChildProcess)(int, char**, void*);
+  xul_dlsym("XRE_InitChildProcess", &fXRE_InitChildProcess);
+
+  fXRE_SetProcessType(argv[--argc]);
+
+  XREChildData childData;
+  return fXRE_InitChildProcess(argc, argv, &childData);
+}
+