am 289476b6: am a803542a: am cb634bda: Merge "clean up native com.android.internal.os.Zygote" (022fa3b0) · Commits · e / os / android_frameworks_base

core/jni/com_android_internal_os_Zygote.cpp

+52 −85

Original line number	Diff line number	Diff line
		@@ -14,46 +14,40 @@
		* limitations under the License.
		*/

		#include "android_runtime/AndroidRuntime.h"
		#define LOG_TAG "Zygote"

		// sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc
		#include <sys/mount.h>
		#include <linux/fs.h>

		#include <grp.h>
		#include <fcntl.h>
		#include <paths.h>
		#include <signal.h>
		#include <stdlib.h>
		#include <unistd.h>
		#include <sys/capability.h>
		#include <sys/personality.h>
		#include <sys/prctl.h>
		#include <sys/resource.h>
		#include <sys/types.h>
		#include <sys/stat.h>
		#include <sys/types.h>
		#include <sys/utsname.h>
		#include <sys/wait.h>
		#include <unistd.h>
		#include <fcntl.h>

		#include "cutils/fs.h"
		#include "cutils/multiuser.h"
		#include "cutils/sched_policy.h"
		#include "utils/String8.h"

		#include <cutils/fs.h>
		#include <cutils/multiuser.h>
		#include <cutils/sched_policy.h>
		#include <utils/String8.h>
		#include <selinux/android.h>

		#include "android_runtime/AndroidRuntime.h"
		#include "JNIHelp.h"
		#include "ScopedLocalRef.h"
		#include "ScopedPrimitiveArray.h"
		#include "ScopedUtfChars.h"

		#if defined(HAVE_PRCTL)
		#include <sys/prctl.h>
		#endif

		#include <selinux/android.h>

		#if defined(__linux__)
		#include <sys/personality.h>
		#include <sys/utsname.h>
		#if defined(HAVE_ANDROID_OS)
		#include <sys/capability.h>
		#endif
		#endif

		namespace {

		using android::String8;
		@@ -97,11 +91,9 @@ static void SigChldHandler(int /signal_number/) {
		if (WTERMSIG(status) != SIGKILL) {
		ALOGI("Process %d exited due to signal (%d)", pid, WTERMSIG(status));
		}
		#ifdef WCOREDUMP
		if (WCOREDUMP(status)) {
		ALOGI("Process %d dumped core.", pid);
		}
		#endif /* ifdef WCOREDUMP */
		}

		// If the just-crashed process is the system_server, bring down zygote
		@@ -199,8 +191,6 @@ static void SetRLimits(JNIEnv* env, jobjectArray javaRlimits) {
		}
		}

		#if defined(HAVE_ANDROID_OS)

		// The debug malloc library needs to know whether it's the zygote or a child.
		extern "C" int gMallocLeakZygoteChild;

		@@ -254,17 +244,6 @@ static void SetSchedulerPolicy(JNIEnv* env) {
		}
		}

		#else

		static int gMallocLeakZygoteChild = 0;

		static void EnableKeepCapabilities(JNIEnv*) {}
		static void DropCapabilitiesBoundingSet(JNIEnv*) {}
		static void SetCapabilities(JNIEnv*, int64_t, int64_t) {}
		static void SetSchedulerPolicy(JNIEnv*) {}

		#endif

		// Create a private mount namespace and bind mount appropriate emulated
		// storage for the given user.
		static bool MountEmulatedStorage(uid_t uid, jint mount_mode) {
		@@ -337,7 +316,6 @@ static bool MountEmulatedStorage(uid_t uid, jint mount_mode) {
		return true;
		}

		#if defined(__linux__)
		static bool NeedsNoRandomizeWorkaround() {
		#if !defined(__arm__)
		return false;
		@@ -357,7 +335,6 @@ static bool NeedsNoRandomizeWorkaround() {
		return (major < 3) \|\| ((major == 3) && (minor < 4));
		#endif
		}
		#endif

		// Utility to close down the Zygote socket file descriptors while
		// the child is still running as root with Zygote's privileges. Each
		@@ -474,7 +451,6 @@ static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArra
		RuntimeAbort(env);
		}

		#if defined(__linux__)
		if (NeedsNoRandomizeWorkaround()) {
		// Work around ARM kernel ASLR lossage (http://b/5817320).
		int old_personality = personality(0xffffffff);
		@@ -483,14 +459,11 @@ static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArra
		ALOGW("personality(%d) failed", new_personality);
		}
		}
		#endif

		SetCapabilities(env, permittedCapabilities, effectiveCapabilities);

		SetSchedulerPolicy(env);

		#if defined(HAVE_ANDROID_OS)
		{ // NOLINT(whitespace/braces)
		const char* se_info_c_str = NULL;
		ScopedUtfChars* se_info = NULL;
		if (java_se_info != NULL) {
		@@ -529,12 +502,6 @@ static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArra

		delete se_info;
		delete se_name;
		}
		#else
		UNUSED(is_system_server);
		UNUSED(java_se_info);
		UNUSED(java_se_name);
		#endif

		UnsetSigChldHandler();