auto import from //depot/cupcake/@135843

1 files changed, 514 insertions, 0 deletions

diff --git a/cmds/runtime/main_runtime.cpp b/cmds/runtime/main_runtime.cpp
new file mode 100644
index 0000000..1531a9e
--- /dev/null
+++ b/cmds/runtime/main_runtime.cpp
@@ -0,0 +1,514 @@
+//
+// Copyright 2005 The Android Open Source Project
+//
+// Main entry point for runtime.
+//
+
+#include "ServiceManager.h"
+#include "SignalHandler.h"
+
+#include <utils.h>
+#include <utils/IPCThreadState.h>
+#include <utils/ProcessState.h>
+#include <utils/Log.h>  
+#include <cutils/zygote.h>
+
+#include <cutils/properties.h>
+
+#include <private/utils/Static.h>
+
+#include <ui/ISurfaceComposer.h>
+
+#include <android_runtime/AndroidRuntime.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <getopt.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <linux/capability.h>
+#include <linux/ioctl.h>
+#ifdef HAVE_ANDROID_OS
+# include <linux/android_alarm.h>
+#endif
+
+#undef LOG_TAG
+#define LOG_TAG "runtime"
+
+static const char* ZYGOTE_ARGV[] = { 
+    "--setuid=1000",
+    "--setgid=1000",
+    "--setgroups=1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,3001,3002,3003",
+    /* CAP_SYS_TTY_CONFIG & CAP_SYS_RESOURCE & CAP_NET_BROADCAST &
+     * CAP_NET_ADMIN & CAP_NET_RAW & CAP_NET_BIND_SERVICE  & CAP_KILL &
+     * CAP_SYS_BOOT
+     */
+    "--capabilities=88161312,88161312",
+    "--runtime-init",
+    "--nice-name=system_server",
+    "com.android.server.SystemServer"
+};
+
+using namespace android;
+
+extern "C" status_t system_init();
+
+enum {
+    SYSTEM_PROCESS_TAG = DEFAULT_PROCESS_TAG+1
+};
+
+extern Mutex gEventQMutex;
+extern Condition gEventQCondition;
+
+namespace android {
+
+extern status_t app_init(const char* className);
+extern void set_finish_init_func(void (*func)());
+
+
+/**
+ * This class is used to kill this process (runtime) when the system_server dies.
+ */
+class GrimReaper : public IBinder::DeathRecipient {
+public: 
+    GrimReaper() { }
+
+    virtual void binderDied(const wp<IBinder>& who)
+    {
+        LOGI("Grim Reaper killing runtime...");
+        kill(getpid(), SIGKILL);
+    }
+};
+
+extern void QuickTests();
+
+/*
+ * Print usage info.
+ */
+static void usage(const char* argv0)
+{
+    fprintf(stderr,
+        "Usage: runtime [-g gamma] [-l logfile] [-n] [-s]\n"
+        "               [-j app-component] [-v app-verb] [-d app-data]\n"
+        "\n"
+        "-l: File to send log messages to\n"
+        "-n: Don't print to stdout/stderr\n"
+        "-s: Force single-process mode\n"
+        "-j: Custom home app component name\n"
+        "-v: Custom home app intent verb\n"
+        "-d: Custom home app intent data\n"
+    );
+    exit(1);
+}
+
+// Selected application to run.
+static const char* gInitialApplication = NULL;
+static const char* gInitialVerb = NULL;
+static const char* gInitialData = NULL;
+
+static void writeStringToParcel(Parcel& parcel, const char* str)
+{
+    if (str) {
+        parcel.writeString16(String16(str));
+    } else {
+        parcel.writeString16(NULL, 0);
+    }
+}
+
+/*
+ * Starting point for program logic.
+ *
+ * Returns with an exit status code (0 on success, nonzero on error).
+ */
+static int run(sp<ProcessState>& proc)
+{
+    // Temporary hack to call startRunning() on the activity manager.
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> am;
+    while ((am = sm->getService(String16("activity"))) == NULL) {
+        LOGI("Waiting for activity manager...");
+    }
+    Parcel data, reply;
+    // XXX Need to also supply a package name for this to work again.
+    // IActivityManager::getInterfaceDescriptor() is the token for invoking on this interface;
+    // hardcoding it here avoids having to link with the full Activity Manager library
+    data.writeInterfaceToken(String16("android.app.IActivityManager"));
+    writeStringToParcel(data, NULL);
+    writeStringToParcel(data, gInitialApplication);
+    writeStringToParcel(data, gInitialVerb);
+    writeStringToParcel(data, gInitialData);
+LOGI("run() sending FIRST_CALL_TRANSACTION to activity manager");
+    am->transact(IBinder::FIRST_CALL_TRANSACTION, data, &reply);
+
+    if (proc->supportsProcesses()) {
+        // Now we link to the Activity Manager waiting for it to die. If it does kill ourself.
+        // initd will restart this process and bring the system back up.
+        sp<GrimReaper> grim = new GrimReaper();
+        am->linkToDeath(grim, grim.get(), 0);
+
+        // Now join the thread pool. Note this is needed so that the message enqueued in the driver
+        // for the linkToDeath gets processed.
+        IPCThreadState::self()->joinThreadPool();
+    } else {
+        // Keep this thread running forever...
+        while (1) {
+            usleep(100000);
+        }
+    }
+    return 1;
+}
+
+
+};  // namespace android
+
+
+/*
+ * Post-system-process initialization.
+ * 
+ * This function continues initialization after the system process
+ * has been initialized.  It needs to be separate because the system
+ * initialization needs to care of starting the Android runtime if it is not
+ * running in its own process, which doesn't return until the runtime is
+ * being shut down.  So it will call back to here from inside of Dalvik,
+ * to allow us to continue booting up.
+ */
+static void finish_system_init(sp<ProcessState>& proc)
+{
+    // If we are running multiprocess, we now need to have the
+    // thread pool started here.  We don't do this in boot_init()
+    // because when running single process we need to start the
+    // thread pool after the Android runtime has been started (so
+    // the pool uses Dalvik threads).
+    if (proc->supportsProcesses()) {
+        proc->startThreadPool();
+    }
+}
+
+
+// This function can be used to enforce security to different
+// root contexts.  For now, we just give every access.
+static bool contextChecker(
+    const String16& name, const sp<IBinder>& caller, void* userData)
+{
+    return true;
+}
+
+/*
+ * Initialization of boot services.
+ *
+ * This is where we perform initialization of all of our low-level
+ * boot services.  Most importantly, here we become the context
+ * manager and use that to publish the service manager that will provide
+ * access to all other services.
+ */
+static void boot_init()
+{
+    LOGI("Entered boot_init()!\n");
+    
+    sp<ProcessState> proc(ProcessState::self());
+    LOGD("ProcessState: %p\n", proc.get());
+    proc->becomeContextManager(contextChecker, NULL);
+    
+    if (proc->supportsProcesses()) {
+        LOGI("Binder driver opened.  Multiprocess enabled.\n");
+    } else {
+        LOGI("Binder driver not found.  Processes not supported.\n");
+    }
+    
+    sp<BServiceManager> sm = new BServiceManager;
+    proc->setContextObject(sm);
+}
+
+/*
+ * Redirect stdin/stdout/stderr to /dev/null.
+ */
+static void redirectStdFds(void)
+{
+    int fd = open("/dev/null", O_RDWR, 0);
+    if (fd < 0) {
+        LOGW("Unable to open /dev/null: %s\n", strerror(errno));
+    } else {
+        dup2(fd, 0);
+        dup2(fd, 1);
+        dup2(fd, 2);
+        close(fd);
+    }
+}
+
+static int hasDir(const char* dir)
+{
+    struct stat s;
+    int res = stat(dir, &s);
+    if (res == 0) {
+        return S_ISDIR(s.st_mode);
+    }
+    return 0;
+}
+
+static void validateTime()
+{
+#if HAVE_ANDROID_OS
+    int fd;
+    int res;
+    time_t min_time = 1167652800; // jan 1 2007, type 'date -ud "1/1 12:00" +%s' to get value for current year
+    struct timespec ts;
+    
+    fd = open("/dev/alarm", O_RDWR);
+    if(fd < 0) {
+        LOGW("Unable to open alarm driver: %s\n", strerror(errno));
+        return;
+    }
+    res = ioctl(fd, ANDROID_ALARM_GET_TIME(ANDROID_ALARM_RTC_WAKEUP), &ts);
+    if(res < 0) {
+        LOGW("Unable to read rtc, %s\n", strerror(errno));
+    }
+    else if(ts.tv_sec >= min_time) {
+        goto done;
+    }
+    LOGW("Invalid time detected, %ld set to %ld\n", ts.tv_sec, min_time);
+    ts.tv_sec = min_time;
+    ts.tv_nsec = 0;
+    res = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
+    if(res < 0) {
+        LOGW("Unable to set rtc to %ld: %s\n", ts.tv_sec, strerror(errno));
+    }
+done:
+    close(fd);
+#endif
+}
+
+#ifndef HAVE_ANDROID_OS
+class QuickRuntime : public AndroidRuntime
+{
+public:
+    QuickRuntime() {}
+
+    virtual void onStarted()
+    {
+        printf("QuickRuntime: onStarted\n");
+    }
+};
+#endif
+
+static status_t start_process(const char* name);
+
+static void restart_me(pid_t child, void* userData)
+{
+    start_process((const char*)userData);
+}
+
+static status_t start_process(const char* name)
+{
+    String8 path(name);
+    Vector<const char*> args;
+    String8 leaf(path.getPathLeaf());
+    String8 parentDir(path.getPathDir());
+    args.insertAt(leaf.string(), 0);
+    args.add(parentDir.string());
+    args.add(NULL);
+    pid_t child = fork();
+    if (child < 0) {
+        status_t err = errno;
+        LOGE("*** fork of child %s failed: %s", leaf.string(), strerror(err));
+        return -errno;
+    } else if (child == 0) {
+        LOGI("Executing: %s", path.string());
+        execv(path.string(), const_cast<char**>(args.array()));
+        int err = errno;
+        LOGE("Exec failed: %s\n", strerror(err));
+        _exit(err);
+    } else {
+        SignalHandler::setChildHandler(child, DEFAULT_PROCESS_TAG,
+                restart_me, (void*)name);
+    }
+    return -errno;
+}
+
+/*
+ * Application entry point.
+ *
+ * Parse arguments, set some values, and pass control off to Run().
+ *
+ * This is redefined to "SDL_main" on SDL simulator builds, and
+ * "runtime_main" on wxWidgets builds.
+ */
+extern "C"
+int main(int argc, char* const argv[])
+{
+    bool singleProcess = false;
+    const char* logFile = NULL;
+    int ic;
+    int result = 1;
+    pid_t systemPid;
+    
+    sp<ProcessState> proc;
+
+#ifndef HAVE_ANDROID_OS
+    /* Set stdout/stderr to unbuffered for MinGW/MSYS. */
+    //setvbuf(stdout, NULL, _IONBF, 0);
+    //setvbuf(stderr, NULL, _IONBF, 0);
+    
+    LOGI("commandline args:\n");
+    for (int i = 0; i < argc; i++)
+        LOGI("  %2d: '%s'\n", i, argv[i]);
+#endif
+
+    while (1) {
+        ic = getopt(argc, argv, "g:j:v:d:l:ns");
+        if (ic < 0)
+            break;
+
+        switch (ic) {
+        case 'g':
+            break;
+        case 'j':
+            gInitialApplication = optarg;
+            break;
+        case 'v':
+            gInitialVerb = optarg;
+            break;
+        case 'd':
+            gInitialData = optarg;
+            break;
+        case 'l':
+            logFile = optarg;
+            break;
+        case 'n':
+            redirectStdFds();
+            break;
+        case 's':
+            singleProcess = true;
+            break;
+        case '?':
+        default:
+            LOGE("runtime: unrecognized flag -%c\n", ic);
+            usage(argv[0]);
+            break;
+        }
+    }
+    if (optind < argc) {
+        LOGE("runtime: extra stuff: %s\n", argv[optind]);
+        usage(argv[0]);
+    }
+
+    if (singleProcess) {
+        ProcessState::setSingleProcess(true);
+    }
+
+    if (logFile != NULL) {
+        android_logToFile(NULL, logFile);
+    }
+
+    /*
+     * Set up ANDROID_* environment variables.
+     *
+     * TODO: the use of $ANDROID_PRODUCT_OUT will go away soon.
+     */
+    static const char* kSystemDir = "/system";
+    static const char* kDataDir = "/data";
+    static const char* kAppSubdir = "/app";
+    const char* out = NULL;
+#ifndef HAVE_ANDROID_OS
+    //out = getenv("ANDROID_PRODUCT_OUT");
+#endif
+    if (out == NULL)
+        out = "";
+
+    char* systemDir = (char*) malloc(strlen(out) + strlen(kSystemDir) +1);
+    char* dataDir = (char*) malloc(strlen(out) + strlen(kDataDir) +1);
+
+    sprintf(systemDir, "%s%s", out, kSystemDir);
+    sprintf(dataDir, "%s%s", out, kDataDir);
+    setenv("ANDROID_ROOT", systemDir, 1);
+    setenv("ANDROID_DATA", dataDir, 1);
+
+    char* assetDir = (char*) malloc(strlen(systemDir) + strlen(kAppSubdir) +1);
+    sprintf(assetDir, "%s%s", systemDir, kAppSubdir);
+
+    LOGI("Startup: sys='%s' asset='%s' data='%s'\n",
+        systemDir, assetDir, dataDir);
+    free(systemDir);
+    free(dataDir);
+
+#ifdef HAVE_ANDROID_OS
+    /* set up a process group for easier killing on the device */
+    setpgid(0, getpid());
+#endif
+
+    // Change to asset dir.  This is only necessary if we've changed to
+    // a different directory, but there's little harm in doing it regardless.
+    //
+    // Expecting assets to live in the current dir is not a great idea,
+    // because some of our code or one of our libraries could change the
+    // directory out from under us.  Preserve the behavior for now.
+    if (chdir(assetDir) != 0) {
+        LOGW("WARNING: could not change dir to '%s': %s\n",
+             assetDir, strerror(errno));
+    }
+    free(assetDir);
+
+#if 0
+    // Hack to keep libc from beating the filesystem to death.  It's
+    // hitting /etc/localtime frequently, 
+    //
+    // This statement locks us into Pacific time.  We could do better,
+    // but there's not much point until we're sure that the library
+    // can't be changed to do more along the lines of what we want.
+#ifndef XP_WIN
+    setenv("TZ", "PST+8PDT,M4.1.0/2,M10.5.0/2", true);
+#endif
+#endif
+
+    /* track our progress through the boot sequence */
+    const int LOG_BOOT_PROGRESS_START = 3000;
+    LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, 
+        ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
+
+    validateTime();
+
+    proc = ProcessState::self();
+    
+    boot_init();
+    
+    /* If we are in multiprocess mode, have zygote spawn the system
+     * server process and call system_init(). If we are running in
+     * single process mode just call system_init() directly.
+     */
+    if (proc->supportsProcesses()) {
+        // If stdio logging is on, system_server should not inherit our stdio
+        // The dalvikvm instance will copy stdio to the log on its own
+        char propBuf[PROPERTY_VALUE_MAX];
+        bool logStdio = false;
+        property_get("log.redirect-stdio", propBuf, "");
+        logStdio = (strcmp(propBuf, "true") == 0);
+
+        zygote_run_oneshot((int)(!logStdio), 
+                sizeof(ZYGOTE_ARGV) / sizeof(ZYGOTE_ARGV[0]), 
+                ZYGOTE_ARGV);
+
+        //start_process("/system/bin/mediaserver");
+
+    } else {
+#ifndef HAVE_ANDROID_OS
+        QuickRuntime* runt = new QuickRuntime();
+        runt->start("com/android/server/SystemServer", 
+                    false /* spontaneously fork system server from zygote */);
+#endif
+    }
+
+    //printf("+++ post-zygote\n");
+
+    finish_system_init(proc);
+    run(proc);
+    
+bail:
+    if (proc != NULL) {
+        proc->setContextObject(NULL);
+    }
+    
+    return 0;
+}