adbd: remove static dependency on libcutils.

We were previously statically linking libcutils into adbd for several
different reasons, which were addressed as follows:

  socket functions: extracted to a statically linked libcutils_network
  fs_config: wrapped with a shared library on /system
  ATRACE: deleted the single use in adbd

Bug: http://b/150032044
Test: treehugger
Change-Id: I821fa174cfcbfa8e29a4be10de4016b817adbaf8
Merged-In: I821fa174cfcbfa8e29a4be10de4016b817adbaf8
(cherry picked from commit a9b62d545275ca32775a0bc5f004abe03aaa38ad)

20 files changed, 266 insertions, 95 deletions

diff --git a/adb/Android.bp b/adb/Android.bp
index 1004483ac..2f1fe3ca0 100644
--- a/adb/Android.bp
+++ b/adb/Android.bp
@@ -114,66 +114,6 @@ cc_defaults {
     },
 }
 
-// libadbconnection
-// =========================================================
-// libadbconnection_client/server implement the socket handling for jdwp
-// forwarding and the track-jdwp service.
-cc_library {
-    name: "libadbconnection_server",
-    srcs: ["adbconnection/adbconnection_server.cpp"],
-
-    export_include_dirs: ["adbconnection/include"],
-
-    stl: "libc++_static",
-    shared_libs: ["liblog"],
-    static_libs: ["libbase"],
-
-    defaults: ["adbd_defaults", "host_adbd_supported"],
-
-    // Avoid getting duplicate symbol of android::build::getbuildnumber().
-    use_version_lib: false,
-
-    recovery_available: true,
-    compile_multilib: "both",
-}
-
-cc_library {
-    name: "libadbconnection_client",
-    srcs: ["adbconnection/adbconnection_client.cpp"],
-
-    export_include_dirs: ["adbconnection/include"],
-
-    stl: "libc++_static",
-    shared_libs: ["liblog"],
-    static_libs: ["libbase"],
-
-    defaults: ["adbd_defaults"],
-    visibility: [
-        "//art:__subpackages__",
-        "//system/core/adb/apex:__subpackages__",
-    ],
-    apex_available: [
-        "com.android.adbd",
-        "test_com.android.adbd",
-    ],
-
-    // libadbconnection_client doesn't need an embedded build number.
-    use_version_lib: false,
-
-    target: {
-        linux: {
-            version_script: "adbconnection/libadbconnection_client.map.txt",
-        },
-    },
-    stubs: {
-        symbol_file: "adbconnection/libadbconnection_client.map.txt",
-        versions: ["1"],
-    },
-
-    host_supported: true,
-    compile_multilib: "both",
-}
-
 // libadb
 // =========================================================
 // These files are compiled for both the host and the device.
@@ -459,7 +399,6 @@ cc_library_static {
         "libbase",
         "libcrypto",
         "libcrypto_utils",
-        "libcutils",
         "liblog",
     ],
 
@@ -483,7 +422,7 @@ cc_library_static {
     },
 }
 
-cc_library {
+cc_library_static {
     name: "libadbd_services",
     defaults: ["adbd_defaults", "host_adbd_supported"],
     recovery_available: true,
@@ -513,11 +452,11 @@ cc_library {
         "libadb_protos",
         "libadb_tls_connection",
         "libadbd_auth",
+        "libadbd_fs",
         "libasyncio",
         "libbase",
         "libcrypto",
         "libcrypto_utils",
-        "libcutils",
         "liblog",
     ],
 
@@ -564,13 +503,19 @@ cc_library {
         "libadb_pairing_connection",
         "libadb_tls_connection",
         "libadbd_auth",
-        "libadbd_services",
+        "libadbd_fs",
         "libasyncio",
         "libbase",
         "libcrypto",
         "libcrypto_utils",
-        "libcutils",
         "liblog",
+        "libselinux",
+    ],
+
+    static_libs: [
+        "libadbd_services",
+        "libcutils_sockets",
+        "libdiagnose_usb",
     ],
 
     export_include_dirs: [
@@ -605,7 +550,7 @@ cc_binary {
         "libbase",
         "libcap",
         "libcrypto_utils",
-        "libcutils",
+        "libcutils_sockets",
         "libdiagnose_usb",
         "liblog",
         "libmdnssd",
@@ -620,10 +565,14 @@ cc_binary {
         "libadb_protos",
         "libadb_tls_connection",
         "libadbd_auth",
+        "libadbd_fs",
         "libcrypto",
     ],
 
-    required: ["libadbd_auth"],
+    required: [
+        "libadbd_auth",
+        "libadbd_fs",
+    ],
 }
 
 phony {
@@ -699,9 +648,9 @@ cc_test {
         "libadb_pairing_connection_static",
         "libadb_tls_connection_static",
         "libbase",
-        "libcutils",
         "libcrypto_utils",
         "libcrypto_static",
+        "libcutils_sockets",
         "libdiagnose_usb",
         "liblog",
         "libusb",
diff --git a/adb/adb_trace.h b/adb/adb_trace.h
index ed4be88a6..3421a0296 100644
--- a/adb/adb_trace.h
+++ b/adb/adb_trace.h
@@ -59,11 +59,4 @@ extern int adb_trace_mask;
 void adb_trace_init(char**);
 void adb_trace_enable(AdbTrace trace_tag);
 
-// Include <atomic> before stdatomic.h (introduced in cutils/trace.h) to avoid compile error.
-#include <atomic>
-
-#define ATRACE_TAG ATRACE_TAG_ADB
-#include <cutils/trace.h>
-#include <utils/Trace.h>
-
 #endif /* __ADB_TRACE_H */
diff --git a/adb/client/adb_install.cpp b/adb/client/adb_install.cpp
index 982a96b74..21b8f4999 100644
--- a/adb/client/adb_install.cpp
+++ b/adb/client/adb_install.cpp
@@ -17,6 +17,7 @@
 #include "adb_install.h"
 
 #include <fcntl.h>
+#include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/adb/client/incremental_server.cpp b/adb/client/incremental_server.cpp
index 585e50c44..2512d0562 100644
--- a/adb/client/incremental_server.cpp
+++ b/adb/client/incremental_server.cpp
@@ -27,6 +27,7 @@
 
 #include <android-base/endian.h>
 #include <android-base/strings.h>
+#include <inttypes.h>
 #include <lz4.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/adb/daemon/file_sync_service.cpp b/adb/daemon/file_sync_service.cpp
index d6af7087d..edf5683d3 100644
--- a/adb/daemon/file_sync_service.cpp
+++ b/adb/daemon/file_sync_service.cpp
@@ -40,10 +40,13 @@
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
 
-#include <private/android_filesystem_config.h>
+#include <adbd_fs.h>
+
+// Needed for __android_log_security_bswrite.
 #include <private/android_logger.h>
 
 #if defined(__ANDROID__)
+#include <linux/capability.h>
 #include <selinux/android.h>
 #include <sys/xattr.h>
 #endif
@@ -98,7 +101,7 @@ static bool secure_mkdirs(const std::string& path) {
     for (const auto& path_component : path_components) {
         uid_t uid = -1;
         gid_t gid = -1;
-        unsigned int mode = 0775;
+        mode_t mode = 0775;
         uint64_t capabilities = 0;
 
         if (path_component.empty()) {
@@ -111,7 +114,7 @@ static bool secure_mkdirs(const std::string& path) {
         partial_path += path_component;
 
         if (should_use_fs_config(partial_path)) {
-            fs_config(partial_path.c_str(), 1, nullptr, &uid, &gid, &mode, &capabilities);
+            adbd_fs_config(partial_path.c_str(), 1, nullptr, &uid, &gid, &mode, &capabilities);
         }
         if (adb_mkdir(partial_path.c_str(), mode) == -1) {
             if (errno != EEXIST) {
@@ -468,9 +471,7 @@ static bool do_send(int s, const std::string& spec, std::vector<char>& buffer) {
         gid_t gid = -1;
         uint64_t capabilities = 0;
         if (should_use_fs_config(path)) {
-            unsigned int broken_api_hack = mode;
-            fs_config(path.c_str(), 0, nullptr, &uid, &gid, &broken_api_hack, &capabilities);
-            mode = broken_api_hack;
+            adbd_fs_config(path.c_str(), 0, nullptr, &uid, &gid, &mode, &capabilities);
         }
 
         result = handle_send_file(s, path.c_str(), &timestamp, uid, gid, capabilities, mode, buffer,
@@ -550,7 +551,6 @@ static const char* sync_id_to_name(uint32_t id) {
 static bool handle_sync_command(int fd, std::vector<char>& buffer) {
     D("sync: waiting for request");
 
-    ATRACE_CALL();
     SyncRequest request;
     if (!ReadFdExactly(fd, &request, sizeof(request))) {
         SendSyncFail(fd, "command read failure");
@@ -569,8 +569,6 @@ static bool handle_sync_command(int fd, std::vector<char>& buffer) {
     name[path_length] = 0;
 
     std::string id_name = sync_id_to_name(request.id);
-    std::string trace_name = StringPrintf("%s(%s)", id_name.c_str(), name);
-    ATRACE_NAME(trace_name.c_str());
 
     D("sync: %s('%s')", id_name.c_str(), name);
     switch (request.id) {
diff --git a/adb/daemon/usb.cpp b/adb/daemon/usb.cpp
index c7f8895b8..092819807 100644
--- a/adb/daemon/usb.cpp
+++ b/adb/daemon/usb.cpp
@@ -19,6 +19,7 @@
 #include "sysdeps.h"
 
 #include <errno.h>
+#include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/adb/fastdeploy/deploypatchgenerator/apk_archive.cpp b/adb/fastdeploy/deploypatchgenerator/apk_archive.cpp
index 932d579b5..9da256e24 100644
--- a/adb/fastdeploy/deploypatchgenerator/apk_archive.cpp
+++ b/adb/fastdeploy/deploypatchgenerator/apk_archive.cpp
@@ -18,6 +18,8 @@
 
 #include "apk_archive.h"
 
+#include <inttypes.h>
+
 #include "adb_trace.h"
 #include "sysdeps.h"
 
diff --git a/adb/adbconnection/.clang-format b/adb/libs/.clang-format
index e545823f4..e545823f4 120000
--- a/adb/adbconnection/.clang-format
+++ b/adb/libs/.clang-format
diff --git a/adb/libs/adbconnection/.clang-format b/adb/libs/adbconnection/.clang-format
new file mode 120000
index 000000000..e545823f4
--- /dev/null
+++ b/adb/libs/adbconnection/.clang-format
@@ -0,0 +1 @@
+../../.clang-format-2
\ No newline at end of file
diff --git a/adb/libs/adbconnection/Android.bp b/adb/libs/adbconnection/Android.bp
new file mode 100644
index 000000000..f6b0a4239
--- /dev/null
+++ b/adb/libs/adbconnection/Android.bp
@@ -0,0 +1,59 @@
+// libadbconnection
+// =========================================================
+// libadbconnection_client/server implement the socket handling for jdwp
+// forwarding and the track-jdwp service.
+cc_library {
+    name: "libadbconnection_server",
+    srcs: ["adbconnection_server.cpp"],
+
+    export_include_dirs: ["include"],
+
+    stl: "libc++_static",
+    shared_libs: ["liblog"],
+    static_libs: ["libbase"],
+
+    defaults: ["adbd_defaults", "host_adbd_supported"],
+
+    // Avoid getting duplicate symbol of android::build::GetBuildNumber().
+    use_version_lib: false,
+
+    recovery_available: true,
+    compile_multilib: "both",
+}
+
+cc_library {
+    name: "libadbconnection_client",
+    srcs: ["adbconnection_client.cpp"],
+
+    export_include_dirs: ["include"],
+
+    stl: "libc++_static",
+    shared_libs: ["liblog"],
+    static_libs: ["libbase"],
+
+    defaults: ["adbd_defaults"],
+    visibility: [
+        "//art:__subpackages__",
+        "//system/core/adb/apex:__subpackages__",
+    ],
+    apex_available: [
+        "com.android.adbd",
+        "test_com.android.adbd",
+    ],
+
+    // libadbconnection_client doesn't need an embedded build number.
+    use_version_lib: false,
+
+    target: {
+        linux: {
+            version_script: "libadbconnection_client.map.txt",
+        },
+    },
+    stubs: {
+        symbol_file: "libadbconnection_client.map.txt",
+        versions: ["1"],
+    },
+
+    host_supported: true,
+    compile_multilib: "both",
+}
diff --git a/adb/adbconnection/adbconnection_client.cpp b/adb/libs/adbconnection/adbconnection_client.cpp
index ee48abb03..ee48abb03 100644
--- a/adb/adbconnection/adbconnection_client.cpp
+++ b/adb/libs/adbconnection/adbconnection_client.cpp
diff --git a/adb/adbconnection/adbconnection_server.cpp b/adb/libs/adbconnection/adbconnection_server.cpp
index 939da2f64..939da2f64 100644
--- a/adb/adbconnection/adbconnection_server.cpp
+++ b/adb/libs/adbconnection/adbconnection_server.cpp
diff --git a/adb/adbconnection/include/adbconnection/client.h b/adb/libs/adbconnection/include/adbconnection/client.h
index 692fea00d..692fea00d 100644
--- a/adb/adbconnection/include/adbconnection/client.h
+++ b/adb/libs/adbconnection/include/adbconnection/client.h
diff --git a/adb/adbconnection/include/adbconnection/server.h b/adb/libs/adbconnection/include/adbconnection/server.h
index 57ca6cdee..57ca6cdee 100644
--- a/adb/adbconnection/include/adbconnection/server.h
+++ b/adb/libs/adbconnection/include/adbconnection/server.h
diff --git a/adb/adbconnection/libadbconnection_client.map.txt b/adb/libs/adbconnection/libadbconnection_client.map.txt
index 153a0e41b..153a0e41b 100644
--- a/adb/adbconnection/libadbconnection_client.map.txt
+++ b/adb/libs/adbconnection/libadbconnection_client.map.txt
diff --git a/adb/libs/libadbd_fs/Android.bp b/adb/libs/libadbd_fs/Android.bp
new file mode 100644
index 000000000..d17814825
--- /dev/null
+++ b/adb/libs/libadbd_fs/Android.bp
@@ -0,0 +1,30 @@
+// libadbd_fs
+// =========================================================
+cc_library {
+    name: "libadbd_fs",
+    defaults: ["adbd_defaults"],
+
+    srcs: ["adbd_fs.cpp"],
+    static_libs: [
+        "libbase",
+        "libcutils",
+        "liblog",
+    ],
+    export_include_dirs: ["include"],
+
+    version_script: "libadbd_fs.map.txt",
+    stubs: {
+        versions: ["1"],
+        symbol_file: "libadbd_fs.map.txt",
+    },
+
+    host_supported: true,
+    recovery_available: true,
+    compile_multilib: "both",
+
+    target: {
+        darwin: {
+            enabled: false,
+        }
+    },
+}
diff --git a/adb/libs/libadbd_fs/adbd_fs.cpp b/adb/libs/libadbd_fs/adbd_fs.cpp
new file mode 100644
index 000000000..8e62d40d1
--- /dev/null
+++ b/adb/libs/libadbd_fs/adbd_fs.cpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <adbd_fs.h>
+
+#include <private/fs_config.h>
+
+void adbd_fs_config(const char* path, int dir, const char* target_out_path, uid_t* uid, gid_t* gid,
+                    mode_t* mode, uint64_t* capabilities) {
+  unsigned uid_hack;
+  unsigned gid_hack;
+  unsigned mode_hack;
+  fs_config(path, dir, target_out_path, &uid_hack, &gid_hack, &mode_hack, capabilities);
+  *uid = uid_hack;
+  *gid = gid_hack;
+  *mode = mode_hack;
+}
diff --git a/adb/libs/libadbd_fs/include/adbd_fs.h b/adb/libs/libadbd_fs/include/adbd_fs.h
new file mode 100644
index 000000000..6158d7208
--- /dev/null
+++ b/adb/libs/libadbd_fs/include/adbd_fs.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <sys/types.h>
+
+extern "C" {
+// Thin wrapper around libcutils fs_config.
+void adbd_fs_config(const char* path, int dir, const char* target_out_path, uid_t* uid, gid_t* gid,
+                    mode_t* mode, uint64_t* capabilities);
+}
diff --git a/adb/libs/libadbd_fs/libadbd_fs.map.txt b/adb/libs/libadbd_fs/libadbd_fs.map.txt
new file mode 100644
index 000000000..1454e9639
--- /dev/null
+++ b/adb/libs/libadbd_fs/libadbd_fs.map.txt
@@ -0,0 +1,6 @@
+LIBADBD_FS {
+  global:
+    adbd_fs_config; # apex
+  local:
+    *;
+};
diff --git a/libcutils/Android.bp b/libcutils/Android.bp
index 0379f6e2e..4e93df370 100644
--- a/libcutils/Android.bp
+++ b/libcutils/Android.bp
@@ -21,11 +21,6 @@ libcutils_nonwindows_sources = [
     "fs.cpp",
     "hashmap.cpp",
     "multiuser.cpp",
-    "socket_inaddr_any_server_unix.cpp",
-    "socket_local_client_unix.cpp",
-    "socket_local_server_unix.cpp",
-    "socket_network_client_unix.cpp",
-    "sockets_unix.cpp",
     "str_parms.cpp",
 ]
 
@@ -49,6 +44,90 @@ cc_library_headers {
     },
 }
 
+// Socket specific parts of libcutils that are safe to statically link into an APEX.
+cc_library_static {
+    name: "libcutils_sockets",
+    vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
+    recovery_available: true,
+    host_supported: true,
+    native_bridge_supported: true,
+    apex_available: [
+        "//apex_available:platform",
+        "//apex_available:anyapex",
+    ],
+
+    export_include_dirs: ["include"],
+
+    srcs: ["sockets.cpp"],
+    target: {
+        linux_bionic: {
+            enabled: true,
+        },
+
+        not_windows: {
+            srcs: [
+                "socket_inaddr_any_server_unix.cpp",
+                "socket_local_client_unix.cpp",
+                "socket_local_server_unix.cpp",
+                "socket_network_client_unix.cpp",
+                "sockets_unix.cpp",
+            ],
+        },
+
+        // "not_windows" means "non-Windows host".
+        android: {
+            srcs: [
+                "android_get_control_file.cpp",
+                "socket_inaddr_any_server_unix.cpp",
+                "socket_local_client_unix.cpp",
+                "socket_local_server_unix.cpp",
+                "socket_network_client_unix.cpp",
+                "sockets_unix.cpp",
+            ],
+            static_libs: ["libbase"],
+        },
+
+        windows: {
+            host_ldlibs: ["-lws2_32"],
+            srcs: [
+                "socket_inaddr_any_server_windows.cpp",
+                "socket_network_client_windows.cpp",
+                "sockets_windows.cpp",
+            ],
+
+            enabled: true,
+            cflags: [
+                "-D_GNU_SOURCE",
+            ],
+        },
+    },
+}
+
+cc_test {
+    name: "libcutils_sockets_test",
+    test_suites: ["device-tests"],
+    static_libs: ["libbase", "libcutils_sockets"],
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+
+    srcs: ["sockets_test.cpp"],
+    target: {
+        android: {
+            srcs: [
+                "android_get_control_file_test.cpp",
+                "android_get_control_socket_test.cpp",
+            ],
+        },
+    },
+}
+
 cc_library {
     name: "libcutils",
     vendor_available: true,
@@ -66,7 +145,6 @@ cc_library {
         "load_file.cpp",
         "native_handle.cpp",
         "record_stream.cpp",
-        "sockets.cpp",
         "strlcpy.c",
         "threads.cpp",
     ],
@@ -86,9 +164,6 @@ cc_library {
             host_ldlibs: ["-lws2_32"],
 
             srcs: [
-                "socket_inaddr_any_server_windows.cpp",
-                "socket_network_client_windows.cpp",
-                "sockets_windows.cpp",
                 "trace-host.cpp",
             ],
 
@@ -97,10 +172,8 @@ cc_library {
                 "-D_GNU_SOURCE",
             ],
         },
-
         android: {
             srcs: libcutils_nonwindows_sources + [
-                "android_get_control_file.cpp",
                 "android_reboot.cpp",
                 "ashmem-dev.cpp",
                 "fs_config.cpp",
@@ -149,6 +222,7 @@ cc_library {
         }
     },
 
+    whole_static_libs: ["libcutils_sockets"],
     shared_libs: [
         "liblog",
         "libbase",