2009-03-04 04:32:55 +01:00
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# Copyright 2005 The Android Open Source Project
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LOCAL_PATH:= $(call my-dir)
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2019-03-20 01:01:09 +01:00
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-include system/sepolicy/policy_version.mk
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2019-02-15 21:13:38 +01:00
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2015-02-04 23:46:36 +01:00
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# --
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ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
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2017-03-10 23:46:38 +01:00
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init_options += \
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2019-05-22 00:50:39 +02:00
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-DALLOW_FIRST_STAGE_CONSOLE=1 \
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2017-03-10 23:46:38 +01:00
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-DALLOW_LOCAL_PROP_OVERRIDE=1 \
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-DALLOW_PERMISSIVE_SELINUX=1 \
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2017-03-28 22:07:15 +02:00
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-DREBOOT_BOOTLOADER_ON_PANIC=1 \
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2017-03-29 21:54:40 +02:00
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-DWORLD_WRITABLE_KMSG=1 \
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-DDUMP_ON_UMOUNT_FAILURE=1
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2015-02-04 23:46:36 +01:00
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else
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2017-03-10 23:46:38 +01:00
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init_options += \
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2019-05-22 00:50:39 +02:00
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-DALLOW_FIRST_STAGE_CONSOLE=0 \
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2017-03-10 23:46:38 +01:00
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-DALLOW_LOCAL_PROP_OVERRIDE=0 \
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-DALLOW_PERMISSIVE_SELINUX=0 \
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2017-03-28 22:07:15 +02:00
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-DREBOOT_BOOTLOADER_ON_PANIC=0 \
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2017-03-29 21:54:40 +02:00
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-DWORLD_WRITABLE_KMSG=0 \
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-DDUMP_ON_UMOUNT_FAILURE=0
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2015-02-04 23:46:36 +01:00
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endif
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2017-03-28 18:41:36 +02:00
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ifneq (,$(filter eng,$(TARGET_BUILD_VARIANT)))
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init_options += \
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-DSHUTDOWN_ZERO_TIMEOUT=1
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else
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init_options += \
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-DSHUTDOWN_ZERO_TIMEOUT=0
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endif
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2019-02-15 21:13:38 +01:00
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init_options += -DLOG_UEVENTS=0 \
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-DSEPOLICY_VERSION=$(POLICYVERS)
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2015-02-06 21:19:48 +01:00
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init_cflags += \
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$(init_options) \
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-Wall -Wextra \
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-Wno-unused-parameter \
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-Werror \
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2015-02-04 23:46:36 +01:00
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# --
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2018-11-06 23:12:05 +01:00
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# Do not build this even with mmma if we're system-as-root, otherwise it will overwrite the symlink.
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ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
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2015-02-06 21:19:48 +01:00
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include $(CLEAR_VARS)
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LOCAL_CPPFLAGS := $(init_cflags)
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2018-07-20 23:57:00 +02:00
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LOCAL_SRC_FILES := \
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devices.cpp \
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2018-11-06 23:12:05 +01:00
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first_stage_init.cpp \
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first_stage_main.cpp \
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2018-07-20 23:57:00 +02:00
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first_stage_mount.cpp \
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Proper mount namespace configuration for bionic
This CL fixes the design problem of the previous mechanism for providing
the bootstrap bionic and the runtime bionic to the same path.
Previously, bootstrap bionic was self-bind-mounted; i.e.
/system/bin/libc.so is bind-mounted to itself. And the runtime bionic
was bind-mounted on top of the bootstrap bionic. This has not only caused
problems like `adb sync` not working(b/122737045), but also is quite
difficult to understand due to the double-and-self mounting.
This is the new design:
Most importantly, these four are all distinct:
1) bootstrap bionic (/system/lib/bootstrap/libc.so)
2) runtime bionic (/apex/com.android.runtime/lib/bionic/libc.so)
3) mount point for 1) and 2) (/bionic/lib/libc.so)
4) symlink for 3) (/system/lib/libc.so -> /bionic/lib/libc.so)
Inside the mount namespace of the pre-apexd processes, 1) is
bind-mounted to 3). Likewise, inside the mount namespace of the
post-apexd processes, 2) is bind-mounted to 3). In other words, there is
no self-mount, and no double-mount.
Another change is that mount points are under /bionic and the legacy
paths become symlinks to the mount points. This is to make sure that
there is no bind mounts under /system, which is breaking some apps.
Finally, code for creating mount namespaces, mounting bionic, etc are
refactored to mount_namespace.cpp
Bug: 120266448
Bug: 123275379
Test: m, device boots, adb sync/push/pull works,
especially with following paths:
/bionic/lib64/libc.so
/bionic/bin/linker64
/system/lib64/bootstrap/libc.so
/system/bin/bootstrap/linker64
Change-Id: Icdfbdcc1efca540ac854d4df79e07ee61fca559f
2019-01-16 15:00:59 +01:00
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mount_namespace.cpp \
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2018-07-20 23:57:00 +02:00
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reboot_utils.cpp \
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2019-05-29 00:58:35 +02:00
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selabel.cpp \
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2018-07-20 23:57:00 +02:00
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selinux.cpp \
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2018-08-07 19:22:01 +02:00
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switch_root.cpp \
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2018-07-20 23:57:00 +02:00
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uevent_listener.cpp \
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util.cpp \
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2015-02-04 02:12:07 +01:00
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2018-10-16 02:47:16 +02:00
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LOCAL_MODULE := init_first_stage
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LOCAL_MODULE_STEM := init
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2018-07-20 23:57:00 +02:00
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LOCAL_FORCE_STATIC_EXECUTABLE := true
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2015-05-08 17:30:33 +02:00
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2018-08-07 19:22:01 +02:00
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LOCAL_MODULE_PATH := $(TARGET_RAMDISK_OUT)
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LOCAL_UNSTRIPPED_PATH := $(TARGET_RAMDISK_OUT_UNSTRIPPED)
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2019-04-19 16:08:56 +02:00
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# Install adb_debug.prop into debug ramdisk.
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# This allows adb root on a user build, when debug ramdisk is used.
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LOCAL_REQUIRED_MODULES := \
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adb_debug.prop \
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2018-08-07 19:22:01 +02:00
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# Set up the same mount points on the ramdisk that system-as-root contains.
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2019-03-07 02:53:23 +01:00
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LOCAL_POST_INSTALL_CMD := mkdir -p \
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$(TARGET_RAMDISK_OUT)/apex \
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2019-04-11 17:57:24 +02:00
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$(TARGET_RAMDISK_OUT)/debug_ramdisk \
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2019-03-07 02:53:23 +01:00
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$(TARGET_RAMDISK_OUT)/dev \
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2018-09-17 23:20:16 +02:00
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$(TARGET_RAMDISK_OUT)/mnt \
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$(TARGET_RAMDISK_OUT)/proc \
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$(TARGET_RAMDISK_OUT)/sys \
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2009-03-04 04:32:55 +01:00
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2012-10-17 08:07:05 +02:00
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LOCAL_STATIC_LIBRARIES := \
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2019-04-11 17:57:24 +02:00
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libc++fs \
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2018-11-26 10:49:23 +01:00
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libfs_avb \
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2015-02-06 21:19:48 +01:00
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libfs_mgr \
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2015-05-22 16:43:50 +02:00
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libfec \
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libfec_rs \
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2015-04-09 02:59:19 +02:00
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libsquashfs_utils \
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2015-02-06 21:19:48 +01:00
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liblogwrap \
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2017-01-11 23:03:11 +01:00
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libext4_utils \
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2018-10-23 22:10:33 +02:00
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libfscrypt \
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2017-07-18 00:14:02 +02:00
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libseccomp_policy \
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2016-08-06 00:47:57 +02:00
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libcrypto_utils \
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2017-01-11 23:37:50 +01:00
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libsparse \
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2017-05-10 02:09:06 +02:00
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libavb \
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libkeyutils \
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2018-07-28 01:05:31 +02:00
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liblp \
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2018-06-01 12:26:42 +02:00
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libcutils \
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libbase \
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liblog \
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libcrypto \
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libdl \
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libz \
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2018-06-19 09:55:05 +02:00
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libselinux \
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2018-07-20 23:57:00 +02:00
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libcap \
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2019-01-04 03:16:56 +01:00
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libgsi \
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2019-02-25 14:18:37 +01:00
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libcom.android.sysprop.apex \
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2019-05-28 19:19:44 +02:00
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liblzma \
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libdexfile_support \
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libunwindstack \
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libbacktrace \
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2019-04-16 02:43:02 +02:00
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libmodprobe \
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libdm: Improve the reliability of dm device paths.
This fixes a race condition where WaitForFile() after
GetDmDevicePathByName appears to succeed, but a subsequent operation on
the path fails. This can happen when CreateDevice() is called
immediately after a call to DeleteDevice (from any process), and the
path is re-used, enqueuing udev events to remove and re-add the block
device.
The fix for this is to introduce a new variant of CreateDevice() that
has a timeout parameter. When the timeout is positive, CreateDevice()
will wait for a /dev/block/mapper/by-uuid symlink to be created, which
signals that ueventd has finished processing the operation.
ueventd will now create these by-uuid symlinks for device-mapper nodes.
Unfortunately, the uuid is only available during "change" events, so we
have to special case device-mapper symlink creation. And since the uuid
is not available during "remove" events, we simply find matching links
to remove them.
This ensures that callers of CreateDevice() can use the device path
knowing that no asynchronous removals are pending. Code that uses the
old CreateDevice+WaitForFile pattern will be transitioned to the new
method.
Note that it is safe to ignore the timeout, or to use the "unsafe"
CreateDevice, if the caller ensures the path by other means. For example
first-stage init has no device removal, and regenerates uevents until
it has acquired all the paths it needs.
Finally, since libdm now inspects sysfs unconditionally, libdm consumers
need r_dir_file perms for sysfs_dm in their sepolicy. Additionally
linking to libdm now requires linking to libext2_uuid.
Bug: 135771280
Test: libdm_test
device flashes, boots
Change-Id: If5a7383ea38f32a7fbbcf24842dce6a668050a70
2019-06-27 02:00:00 +02:00
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libext2_uuid \
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2018-06-01 12:26:42 +02:00
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2017-07-26 23:17:09 +02:00
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LOCAL_SANITIZE := signed-integer-overflow
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2018-11-01 21:38:38 +01:00
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# First stage init is weird: it may start without stdout/stderr, and no /proc.
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LOCAL_NOSANITIZE := hwaddress
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2009-03-04 04:32:55 +01:00
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include $(BUILD_EXECUTABLE)
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2018-11-06 23:12:05 +01:00
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endif
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2018-10-16 02:47:16 +02:00
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include $(CLEAR_VARS)
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LOCAL_MODULE := init_system
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LOCAL_REQUIRED_MODULES := \
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init_second_stage \
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include $(BUILD_PHONY_PACKAGE)
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include $(CLEAR_VARS)
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LOCAL_MODULE := init_vendor
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ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
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LOCAL_REQUIRED_MODULES := \
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init_first_stage \
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endif
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include $(BUILD_PHONY_PACKAGE)
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