Merge changes I3978cbe2,I7b8e1232

* changes:
  Reland "Prevent vendors from accessing private VNDK libs"
  Permitted and search path change
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..682a067
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+enh@google.com
diff --git a/adb/OWNERS b/adb/OWNERS
new file mode 100644
index 0000000..643b448
--- /dev/null
+++ b/adb/OWNERS
@@ -0,0 +1,2 @@
+jmgao@google.com
+yabinc@google.com
diff --git a/adf/OWNERS b/adf/OWNERS
new file mode 100644
index 0000000..72b8b5a
--- /dev/null
+++ b/adf/OWNERS
@@ -0,0 +1,2 @@
+ghackmann@google.com
+marissaw@google.com
diff --git a/base/OWNERS b/base/OWNERS
new file mode 100644
index 0000000..97777f7
--- /dev/null
+++ b/base/OWNERS
@@ -0,0 +1,3 @@
+enh@google.com
+jmgao@google.com
+tomcherry@google.com
diff --git a/bootstat/OWNERS b/bootstat/OWNERS
new file mode 100644
index 0000000..7fe0443
--- /dev/null
+++ b/bootstat/OWNERS
@@ -0,0 +1 @@
+jhawkins@google.com
diff --git a/debuggerd/OWNERS b/debuggerd/OWNERS
new file mode 100644
index 0000000..bfeedca
--- /dev/null
+++ b/debuggerd/OWNERS
@@ -0,0 +1,2 @@
+cferris@google.com
+jmgao@google.com
diff --git a/demangle/OWNERS b/demangle/OWNERS
new file mode 100644
index 0000000..6f7e4a3
--- /dev/null
+++ b/demangle/OWNERS
@@ -0,0 +1 @@
+cferris@google.com
diff --git a/fastboot/OWNERS b/fastboot/OWNERS
new file mode 100644
index 0000000..2d12d50
--- /dev/null
+++ b/fastboot/OWNERS
@@ -0,0 +1,3 @@
+dpursell@google.com
+enh@google.com
+jmgao@google.com
diff --git a/fs_mgr/OWNERS b/fs_mgr/OWNERS
new file mode 100644
index 0000000..817a0b8
--- /dev/null
+++ b/fs_mgr/OWNERS
@@ -0,0 +1,2 @@
+bowgotsai@google.com
+tomcherry@google.com
diff --git a/healthd/OWNERS b/healthd/OWNERS
new file mode 100644
index 0000000..2375f7c
--- /dev/null
+++ b/healthd/OWNERS
@@ -0,0 +1 @@
+toddpoynor@google.com
diff --git a/init/OWNERS b/init/OWNERS
new file mode 100644
index 0000000..babbe4d
--- /dev/null
+++ b/init/OWNERS
@@ -0,0 +1 @@
+tomcherry@google.com
diff --git a/libappfuse/OWNERS b/libappfuse/OWNERS
new file mode 100644
index 0000000..cd7cb74
--- /dev/null
+++ b/libappfuse/OWNERS
@@ -0,0 +1 @@
+hirono@google.com
diff --git a/libbacktrace/OWNERS b/libbacktrace/OWNERS
new file mode 100644
index 0000000..bfeedca
--- /dev/null
+++ b/libbacktrace/OWNERS
@@ -0,0 +1,2 @@
+cferris@google.com
+jmgao@google.com
diff --git a/liblog/OWNERS b/liblog/OWNERS
new file mode 100644
index 0000000..babbe4d
--- /dev/null
+++ b/liblog/OWNERS
@@ -0,0 +1 @@
+tomcherry@google.com
diff --git a/libmemtrack/OWNERS b/libmemtrack/OWNERS
new file mode 100644
index 0000000..70b375f
--- /dev/null
+++ b/libmemtrack/OWNERS
@@ -0,0 +1 @@
+ccross@google.com
diff --git a/libmemunreachable/OWNERS b/libmemunreachable/OWNERS
new file mode 100644
index 0000000..9127a93
--- /dev/null
+++ b/libmemunreachable/OWNERS
@@ -0,0 +1,2 @@
+ccross@google.com
+cferris@google.com
diff --git a/libmetricslogger/OWNERS b/libmetricslogger/OWNERS
new file mode 100644
index 0000000..7fe0443
--- /dev/null
+++ b/libmetricslogger/OWNERS
@@ -0,0 +1 @@
+jhawkins@google.com
diff --git a/libnativebridge/OWNERS b/libnativebridge/OWNERS
new file mode 100644
index 0000000..f2cc942
--- /dev/null
+++ b/libnativebridge/OWNERS
@@ -0,0 +1 @@
+dimitry@google.com
diff --git a/libnativeloader/OWNERS b/libnativeloader/OWNERS
new file mode 100644
index 0000000..f2cc942
--- /dev/null
+++ b/libnativeloader/OWNERS
@@ -0,0 +1 @@
+dimitry@google.com
diff --git a/libnetutils/OWNERS b/libnetutils/OWNERS
new file mode 100644
index 0000000..e3ec950
--- /dev/null
+++ b/libnetutils/OWNERS
@@ -0,0 +1,3 @@
+# TODO: should this be in system/netd?
+ek@google.com
+lorenzo@google.com
diff --git a/libprocinfo/OWNERS b/libprocinfo/OWNERS
new file mode 100644
index 0000000..a70cc57
--- /dev/null
+++ b/libprocinfo/OWNERS
@@ -0,0 +1 @@
+jmgao@google.com
diff --git a/libunwindstack/OWNERS b/libunwindstack/OWNERS
new file mode 100644
index 0000000..6f7e4a3
--- /dev/null
+++ b/libunwindstack/OWNERS
@@ -0,0 +1 @@
+cferris@google.com
diff --git a/libusbhost/usbhost.c b/libusbhost/usbhost.c
index 44b878d..4d286bf 100644
--- a/libusbhost/usbhost.c
+++ b/libusbhost/usbhost.c
@@ -324,29 +324,39 @@
 
 struct usb_device *usb_device_open(const char *dev_name)
 {
-    int fd, did_retry = 0, writeable = 1;
-
+    int fd, attempts, writeable = 1;
+    const int SLEEP_BETWEEN_ATTEMPTS_US = 100000; /* 100 ms */
+    const int64_t MAX_ATTEMPTS = 10;              /* 1s */
     D("usb_device_open %s\n", dev_name);
 
-retry:
-    fd = open(dev_name, O_RDWR);
-    if (fd < 0) {
-        /* if we fail, see if have read-only access */
-        fd = open(dev_name, O_RDONLY);
-        D("usb_device_open open returned %d errno %d\n", fd, errno);
-        if (fd < 0 && (errno == EACCES || errno == ENOENT) && !did_retry) {
-            /* work around race condition between inotify and permissions management */
-            sleep(1);
-            did_retry = 1;
-            goto retry;
+    /* Hack around waiting for permissions to be set on the USB device node.
+     * Should really be a timeout instead of attempt count, and should REALLY
+     * be triggered by the perm change via inotify rather than polling.
+     */
+    for (attempts = 0; attempts < MAX_ATTEMPTS; ++attempts) {
+        if (access(dev_name, R_OK | W_OK) == 0) {
+            writeable = 1;
+            break;
+        } else {
+            if (access(dev_name, R_OK) == 0) {
+                /* double check that write permission didn't just come along too! */
+                writeable = (access(dev_name, R_OK | W_OK) == 0);
+                break;
+            }
         }
-
-        if (fd < 0)
-            return NULL;
-        writeable = 0;
-        D("[ usb open read-only %s fd = %d]\n", dev_name, fd);
+        /* not writeable or readable - sleep and try again. */
+        D("usb_device_open no access sleeping\n");
+        usleep(SLEEP_BETWEEN_ATTEMPTS_US);
     }
 
+    if (writeable) {
+        fd = open(dev_name, O_RDWR);
+    } else {
+        fd = open(dev_name, O_RDONLY);
+    }
+    D("usb_device_open open returned %d writeable %d errno %d\n", fd, writeable, errno);
+    if (fd < 0) return NULL;
+
     struct usb_device* result = usb_device_new(dev_name, fd);
     if (result)
         result->writeable = writeable;
diff --git a/libutils/OWNERS b/libutils/OWNERS
new file mode 100644
index 0000000..40164aa
--- /dev/null
+++ b/libutils/OWNERS
@@ -0,0 +1 @@
+smoreland@google.com
diff --git a/libvndksupport/OWNERS b/libvndksupport/OWNERS
new file mode 100644
index 0000000..c7efc16
--- /dev/null
+++ b/libvndksupport/OWNERS
@@ -0,0 +1,2 @@
+jiyong@google.com
+smoreland@google.com
diff --git a/libziparchive/OWNERS b/libziparchive/OWNERS
new file mode 100644
index 0000000..fcc567a
--- /dev/null
+++ b/libziparchive/OWNERS
@@ -0,0 +1 @@
+narayan@google.com
diff --git a/logcat/OWNERS b/logcat/OWNERS
new file mode 100644
index 0000000..babbe4d
--- /dev/null
+++ b/logcat/OWNERS
@@ -0,0 +1 @@
+tomcherry@google.com
diff --git a/logd/OWNERS b/logd/OWNERS
new file mode 100644
index 0000000..2394e32
--- /dev/null
+++ b/logd/OWNERS
@@ -0,0 +1,2 @@
+cferris@google.com
+tomcherry@google.com
diff --git a/logwrapper/OWNERS b/logwrapper/OWNERS
new file mode 100644
index 0000000..babbe4d
--- /dev/null
+++ b/logwrapper/OWNERS
@@ -0,0 +1 @@
+tomcherry@google.com
diff --git a/qemu_pipe/OWNERS b/qemu_pipe/OWNERS
new file mode 100644
index 0000000..dbc1bf6
--- /dev/null
+++ b/qemu_pipe/OWNERS
@@ -0,0 +1 @@
+bohu@google.com
diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index c702d03..777fdb0 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -142,6 +142,7 @@
 # create some directories (some are mount points) and symlinks
 LOCAL_POST_INSTALL_CMD := mkdir -p $(addprefix $(TARGET_ROOT_OUT)/, \
     sbin dev proc sys system data oem acct config storage mnt $(BOARD_ROOT_EXTRA_FOLDERS)); \
+    ln -sf /system/bin $(TARGET_ROOT_OUT)/bin; \
     ln -sf /system/etc $(TARGET_ROOT_OUT)/etc; \
     ln -sf /data/user_de/0/com.android.shell/files/bugreports $(TARGET_ROOT_OUT)/bugreports; \
     ln -sf /sys/kernel/debug $(TARGET_ROOT_OUT)/d; \
@@ -206,10 +207,6 @@
 LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
 LOCAL_MODULE_STEM := $(LOCAL_MODULE)
 include $(BUILD_SYSTEM)/base_rules.mk
-vndk_lib_md5 := $(word 1, $(shell echo $(LLNDK_LIBRARIES) $(VNDK_SAMEPROCESS_LIBRARIES) | $(MD5SUM)))
-vndk_lib_dep := $(intermediates)/$(vndk_lib_md5).dep
-$(vndk_lib_dep):
-	$(hide) mkdir -p $(dir $@) && rm -rf $(dir $@)*.dep && touch $@
 
 llndk_libraries := $(subst $(space),:,$(addsuffix .so,\
 $(filter-out $(VNDK_PRIVATE_LIBRARIES),$(LLNDK_LIBRARIES))))
@@ -237,7 +234,7 @@
 $(LOCAL_BUILT_MODULE): PRIVATE_LLNDK_PRIVATE_LIBRARIES := $(llndk_private_libraries)
 $(LOCAL_BUILT_MODULE): PRIVATE_VNDK_CORE_LIBRARIES := $(vndk_core_libraries)
 $(LOCAL_BUILT_MODULE): PRIVATE_SANITIZER_RUNTIME_LIBRARIES := $(sanitizer_runtime_libraries)
-$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/etc/ld.config.txt.in $(vndk_lib_dep)
+$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/etc/ld.config.txt.in
 	@echo "Generate: $< -> $@"
 	@mkdir -p $(dir $@)
 	$(hide) sed -e 's?%LLNDK_LIBRARIES%?$(PRIVATE_LLNDK_LIBRARIES)?g' $< >$@
@@ -246,8 +243,6 @@
 	$(hide) sed -i -e 's?%VNDK_CORE_LIBRARIES%?$(PRIVATE_VNDK_CORE_LIBRARIES)?g' $@
 	$(hide) sed -i -e 's?%SANITIZER_RUNTIME_LIBRARIES%?$(PRIVATE_SANITIZER_RUNTIME_LIBRARIES)?g' $@
 
-vndk_lib_md5 :=
-vndk_lib_dep :=
 llndk_libraries :=
 vndk_sameprocess_libraries :=
 vndk_core_libraries :=
@@ -274,13 +269,8 @@
 LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
 LOCAL_MODULE_STEM := $(LOCAL_MODULE)
 include $(BUILD_SYSTEM)/base_rules.mk
-llndk_md5 = $(word 1, $(shell echo $(LLNDK_LIBRARIES) | $(MD5SUM)))
-llndk_dep = $(intermediates)/$(llndk_md5).dep
-$(llndk_dep):
-	$(hide) mkdir -p $(dir $@) && rm -rf $(dir $@)*.dep && touch $@
-
 $(LOCAL_BUILT_MODULE): PRIVATE_LLNDK_LIBRARIES := $(LLNDK_LIBRARIES)
-$(LOCAL_BUILT_MODULE): $(llndk_dep)
+$(LOCAL_BUILT_MODULE):
 	@echo "Generate: $@"
 	@mkdir -p $(dir $@)
 	$(hide) echo -n > $@
@@ -295,13 +285,8 @@
 LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
 LOCAL_MODULE_STEM := $(LOCAL_MODULE)
 include $(BUILD_SYSTEM)/base_rules.mk
-vndksp_md5 = $(word 1, $(shell echo $(LLNDK_LIBRARIES) | $(MD5SUM)))
-vndksp_dep = $(intermediates)/$(vndksp_md5).dep
-$(vndksp_dep):
-	$(hide) mkdir -p $(dir $@) && rm -rf $(dir $@)*.dep && touch $@
-
 $(LOCAL_BUILT_MODULE): PRIVATE_VNDK_SAMEPROCESS_LIBRARIES := $(VNDK_SAMEPROCESS_LIBRARIES)
-$(LOCAL_BUILT_MODULE): $(vndksp_dep)
+$(LOCAL_BUILT_MODULE):
 	@echo "Generate: $@"
 	@mkdir -p $(dir $@)
 	$(hide) echo -n > $@
diff --git a/rootdir/OWNERS b/rootdir/OWNERS
new file mode 100644
index 0000000..f335715
--- /dev/null
+++ b/rootdir/OWNERS
@@ -0,0 +1,3 @@
+jiyong@google.com
+smoreland@google.com
+tomcherry@google.com
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 51a8d2b..5fa77d8 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -48,8 +48,10 @@
     copy /proc/cmdline /dev/urandom
     copy /default.prop /dev/urandom
 
-    # Backward compatibility.
+    symlink /system/bin /bin
     symlink /system/etc /etc
+
+    # Backward compatibility.
     symlink /sys/kernel/debug /d
 
     # Link /vendor to /system/vendor for devices without a vendor partition.
diff --git a/sdcard/OWNERS b/sdcard/OWNERS
new file mode 100644
index 0000000..199a0f8
--- /dev/null
+++ b/sdcard/OWNERS
@@ -0,0 +1 @@
+drosen@google.com
diff --git a/shell_and_utilities/OWNERS b/shell_and_utilities/OWNERS
new file mode 100644
index 0000000..682a067
--- /dev/null
+++ b/shell_and_utilities/OWNERS
@@ -0,0 +1 @@
+enh@google.com
diff --git a/storaged/OWNERS b/storaged/OWNERS
new file mode 100644
index 0000000..7445270
--- /dev/null
+++ b/storaged/OWNERS
@@ -0,0 +1 @@
+jinqian@google.com
diff --git a/toolbox/OWNERS b/toolbox/OWNERS
new file mode 100644
index 0000000..682a067
--- /dev/null
+++ b/toolbox/OWNERS
@@ -0,0 +1 @@
+enh@google.com
diff --git a/trusty/OWNERS b/trusty/OWNERS
new file mode 100644
index 0000000..25291fd
--- /dev/null
+++ b/trusty/OWNERS
@@ -0,0 +1 @@
+bohr@google.com