Merge "liblog: log reader validate headers"
diff --git a/adb/Android.mk b/adb/Android.mk
index 71d5aaf..6188184 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -208,24 +208,6 @@
 
 include $(BUILD_HOST_NATIVE_TEST)
 
-# adb device tracker (used by ddms) test tool
-# =========================================================
-
-ifeq ($(HOST_OS),linux)
-include $(CLEAR_VARS)
-LOCAL_MODULE := adb_device_tracker_test
-LOCAL_CFLAGS := -DADB_HOST=1 $(LIBADB_CFLAGS)
-LOCAL_CFLAGS_windows := $(LIBADB_windows_CFLAGS)
-LOCAL_CFLAGS_linux := $(LIBADB_linux_CFLAGS)
-LOCAL_CFLAGS_darwin := $(LIBADB_darwin_CFLAGS)
-LOCAL_SRC_FILES := test_track_devices.cpp
-LOCAL_SANITIZE := $(adb_host_sanitize)
-LOCAL_SHARED_LIBRARIES := libbase
-LOCAL_STATIC_LIBRARIES := libadb libcrypto_utils_static libcrypto_static libcutils
-LOCAL_LDLIBS += -lrt -ldl -lpthread
-include $(BUILD_HOST_EXECUTABLE)
-endif
-
 # adb host tool
 # =========================================================
 include $(CLEAR_VARS)
diff --git a/adb/adb.cpp b/adb/adb.cpp
index 11e9c68..3f14f1a 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -65,21 +65,34 @@
 void fatal(const char *fmt, ...) {
     va_list ap;
     va_start(ap, fmt);
-    fprintf(stderr, "error: ");
-    vfprintf(stderr, fmt, ap);
-    fprintf(stderr, "\n");
+    char buf[1024];
+    vsnprintf(buf, sizeof(buf), fmt, ap);
+
+#if ADB_HOST
+    fprintf(stderr, "error: %s\n", buf);
+#else
+    LOG(ERROR) << "error: " << buf;
+#endif
+
     va_end(ap);
-    exit(-1);
+    abort();
 }
 
 void fatal_errno(const char* fmt, ...) {
+    int err = errno;
     va_list ap;
     va_start(ap, fmt);
-    fprintf(stderr, "error: %s: ", strerror(errno));
-    vfprintf(stderr, fmt, ap);
-    fprintf(stderr, "\n");
+    char buf[1024];
+    vsnprintf(buf, sizeof(buf), fmt, ap);
+
+#if ADB_HOST
+    fprintf(stderr, "error: %s: %s\n", buf, strerror(err));
+#else
+    LOG(ERROR) << "error: " << buf << ": " << strerror(err);
+#endif
+
     va_end(ap);
-    exit(-1);
+    abort();
 }
 
 apacket* get_apacket(void)
diff --git a/adb/commandline.cpp b/adb/commandline.cpp
index 28dbb78..868470c 100644
--- a/adb/commandline.cpp
+++ b/adb/commandline.cpp
@@ -1902,6 +1902,14 @@
     else if (!strcmp(argv[0], "jdwp")) {
         return adb_connect_command("jdwp");
     }
+    else if (!strcmp(argv[0], "track-jdwp")) {
+        return adb_connect_command("track-jdwp");
+    }
+    else if (!strcmp(argv[0], "track-devices")) {
+        return adb_connect_command("host:track-devices");
+    }
+
+
     /* "adb /?" is a common idiom under Windows */
     else if (!strcmp(argv[0], "help") || !strcmp(argv[0], "/?")) {
         help();
diff --git a/adb/shell_service.cpp b/adb/shell_service.cpp
index 3eeed34..374b468 100644
--- a/adb/shell_service.cpp
+++ b/adb/shell_service.cpp
@@ -412,7 +412,7 @@
         for (const char* message : messages) {
             WriteFdExactly(error_sfd->fd(), message);
         }
-        exit(-1);
+        abort();
     }
 
     if (make_pty_raw_) {
@@ -421,7 +421,7 @@
             int saved_errno = errno;
             WriteFdExactly(error_sfd->fd(), "tcgetattr failed: ");
             WriteFdExactly(error_sfd->fd(), strerror(saved_errno));
-            exit(-1);
+            abort();
         }
 
         cfmakeraw(&tattr);
@@ -429,7 +429,7 @@
             int saved_errno = errno;
             WriteFdExactly(error_sfd->fd(), "tcsetattr failed: ");
             WriteFdExactly(error_sfd->fd(), strerror(saved_errno));
-            exit(-1);
+            abort();
         }
     }
 
diff --git a/adb/test_track_devices.cpp b/adb/test_track_devices.cpp
deleted file mode 100644
index b10f8ee..0000000
--- a/adb/test_track_devices.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-// TODO: replace this with a shell/python script.
-
-/* a simple test program, connects to ADB server, and opens a track-devices session */
-#include <errno.h>
-#include <memory.h>
-#include <netdb.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-#include <android-base/file.h>
-
-static void
-panic( const char*  msg )
-{
-    fprintf(stderr, "PANIC: %s: %s\n", msg, strerror(errno));
-    exit(1);
-}
-
-int main(int argc, char* argv[]) {
-    const char* request = "host:track-devices";
-
-    if (argv[1] && strcmp(argv[1], "--jdwp") == 0) {
-        request = "track-jdwp";
-    }
-
-    int                  ret;
-    struct sockaddr_in   server;
-    char                 buffer[1024];
-
-    memset( &server, 0, sizeof(server) );
-    server.sin_family      = AF_INET;
-    server.sin_port        = htons(5037);
-    server.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-
-    int s = socket( PF_INET, SOCK_STREAM, 0 );
-    ret = connect( s, (struct sockaddr*) &server, sizeof(server) );
-    if (ret < 0) panic( "could not connect to server" );
-
-    /* send the request */
-    int len = snprintf(buffer, sizeof(buffer), "%04zx%s", strlen(request), request);
-    if (!android::base::WriteFully(s, buffer, len))
-        panic( "could not send request" );
-
-    /* read the OKAY answer */
-    if (!android::base::ReadFully(s, buffer, 4))
-        panic( "could not read request" );
-
-    printf( "server answer: %.*s\n", 4, buffer );
-
-    /* now loop */
-    while (true) {
-        char  head[5] = "0000";
-
-        if (!android::base::ReadFully(s, head, 4))
-            panic("could not read length");
-
-        int len;
-        if (sscanf(head, "%04x", &len) != 1 )
-            panic("could not decode length");
-
-        if (!android::base::ReadFully(s, buffer, len))
-            panic("could not read data");
-
-        printf( "received header %.*s (%d bytes):\n%.*s----\n", 4, head, len, len, buffer );
-    }
-    close(s);
-}
diff --git a/libnativeloader/dlext_namespaces.h b/libnativeloader/dlext_namespaces.h
index ca9e619..13a44e2 100644
--- a/libnativeloader/dlext_namespaces.h
+++ b/libnativeloader/dlext_namespaces.h
@@ -83,7 +83,8 @@
                                                             const char* ld_library_path,
                                                             const char* default_library_path,
                                                             uint64_t type,
-                                                            const char* permitted_when_isolated_path);
+                                                            const char* permitted_when_isolated_path,
+                                                            android_namespace_t* parent);
 
 __END_DECLS
 
diff --git a/libnativeloader/native_loader.cpp b/libnativeloader/native_loader.cpp
index 79518ca..713a59d 100644
--- a/libnativeloader/native_loader.cpp
+++ b/libnativeloader/native_loader.cpp
@@ -95,11 +95,14 @@
       namespace_type |= ANDROID_NAMESPACE_TYPE_SHARED;
     }
 
+    android_namespace_t* parent_ns = FindParentNamespaceByClassLoader(env, class_loader);
+
     ns = android_create_namespace("classloader-namespace",
                                   nullptr,
                                   library_path.c_str(),
                                   namespace_type,
-                                  permitted_path.c_str());
+                                  permitted_path.c_str(),
+                                  parent_ns);
 
     if (ns != nullptr) {
       namespaces_.push_back(std::make_pair(env->NewWeakGlobalRef(class_loader), ns));
@@ -200,6 +203,29 @@
     return initialized_;
   }
 
+  jobject GetParentClassLoader(JNIEnv* env, jobject class_loader) {
+    jclass class_loader_class = env->FindClass("java/lang/ClassLoader");
+    jmethodID get_parent = env->GetMethodID(class_loader_class,
+                                            "getParent",
+                                            "()Ljava/lang/ClassLoader;");
+
+    return env->CallObjectMethod(class_loader, get_parent);
+  }
+
+  android_namespace_t* FindParentNamespaceByClassLoader(JNIEnv* env, jobject class_loader) {
+    jobject parent_class_loader = GetParentClassLoader(env, class_loader);
+
+    while (parent_class_loader != nullptr) {
+      android_namespace_t* ns = FindNamespaceByClassLoader(env, parent_class_loader);
+      if (ns != nullptr) {
+        return ns;
+      }
+
+      parent_class_loader = GetParentClassLoader(env, parent_class_loader);
+    }
+    return nullptr;
+  }
+
   bool initialized_;
   std::vector<std::pair<jweak, android_namespace_t*>> namespaces_;
   std::string public_libraries_;