110 lines
3.8 KiB
Diff
110 lines
3.8 KiB
Diff
From 44866318d156d7f410827afcb1b99b3535cdc9b7 Mon Sep 17 00:00:00 2001
|
|
From: Ben Hutchings <ben@decadent.org.uk>
|
|
Date: Fri, 22 Jun 2018 17:27:00 +0100
|
|
Subject: [PATCH 2/2] android: Enable building ashmem and binder as modules
|
|
|
|
We want to enable use of the Android ashmem and binder drivers to
|
|
support Anbox, but they should not be built-in as that would waste
|
|
resources and increase security attack surface on systems that don't
|
|
need them.
|
|
|
|
- Add a MODULE_LICENSE declaration to ashmem
|
|
- Change the Makefiles to build each driver as an object with the
|
|
"_linux" suffix (which is what Anbox expects)
|
|
- Change config symbol types to tristate
|
|
---
|
|
drivers/android/Kconfig | 2 +-
|
|
drivers/android/Makefile | 7 ++++---
|
|
drivers/android/binder_alloc.c | 2 +-
|
|
drivers/staging/android/Kconfig | 2 +-
|
|
drivers/staging/android/Makefile | 3 ++-
|
|
drivers/staging/android/ashmem.c | 3 +++
|
|
6 files changed, 12 insertions(+), 7 deletions(-)
|
|
|
|
diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
|
|
index 53b22e26266c..f3c50236e8d1 100644
|
|
--- a/drivers/android/Kconfig
|
|
+++ b/drivers/android/Kconfig
|
|
@@ -9,7 +9,7 @@ config ANDROID
|
|
if ANDROID
|
|
|
|
config ANDROID_BINDER_IPC
|
|
- bool "Android Binder IPC Driver"
|
|
+ tristate "Android Binder IPC Driver"
|
|
depends on MMU
|
|
default n
|
|
help
|
|
diff --git a/drivers/android/Makefile b/drivers/android/Makefile
|
|
index c9d3d0c99c25..55411d9a9c2a 100644
|
|
--- a/drivers/android/Makefile
|
|
+++ b/drivers/android/Makefile
|
|
@@ -1,6 +1,7 @@
|
|
# SPDX-License-Identifier: GPL-2.0-only
|
|
ccflags-y += -I$(src) # needed for trace events
|
|
|
|
-obj-$(CONFIG_ANDROID_BINDERFS) += binderfs.o
|
|
-obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o binder_alloc.o
|
|
-obj-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o
|
|
+obj-$(CONFIG_ANDROID_BINDER_IPC) += binder_linux.o
|
|
+binder_linux-y := binder.o binder_alloc.o
|
|
+binder_linux-$(CONFIG_ANDROID_BINDERFS) += binderfs.o
|
|
+binder_linux-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o
|
|
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
|
|
index 340515f54498..9ad2387688de 100644
|
|
--- a/drivers/android/binder_alloc.c
|
|
+++ b/drivers/android/binder_alloc.c
|
|
@@ -38,7 +38,7 @@ enum {
|
|
};
|
|
static uint32_t binder_alloc_debug_mask = BINDER_DEBUG_USER_ERROR;
|
|
|
|
-module_param_named(debug_mask, binder_alloc_debug_mask,
|
|
+module_param_named(alloc_debug_mask, binder_alloc_debug_mask,
|
|
uint, 0644);
|
|
|
|
#define binder_alloc_debug(mask, x...) \
|
|
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
|
|
index 70498adb1575..5c35653ed36d 100644
|
|
--- a/drivers/staging/android/Kconfig
|
|
+++ b/drivers/staging/android/Kconfig
|
|
@@ -4,7 +4,7 @@ menu "Android"
|
|
if ANDROID
|
|
|
|
config ASHMEM
|
|
- bool "Enable the Anonymous Shared Memory Subsystem"
|
|
+ tristate "Enable the Anonymous Shared Memory Subsystem"
|
|
depends on SHMEM
|
|
help
|
|
The ashmem subsystem is a new shared memory allocator, similar to
|
|
diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile
|
|
index e9a55a5e6529..60cb8eacc793 100644
|
|
--- a/drivers/staging/android/Makefile
|
|
+++ b/drivers/staging/android/Makefile
|
|
@@ -1,4 +1,5 @@
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
ccflags-y += -I$(src) # needed for trace events
|
|
|
|
-obj-$(CONFIG_ASHMEM) += ashmem.o
|
|
+obj-$(CONFIG_ASHMEM) += ashmem_linux.o
|
|
+ashmem_linux-y += ashmem.o
|
|
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
|
|
index ddbde3f8430e..2a92b0a7482f 100644
|
|
--- a/drivers/staging/android/ashmem.c
|
|
+++ b/drivers/staging/android/ashmem.c
|
|
@@ -24,6 +24,7 @@
|
|
#include <linux/bitops.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/shmem_fs.h>
|
|
+#include <linux/module.h>
|
|
#include "ashmem.h"
|
|
|
|
#define ASHMEM_NAME_PREFIX "dev/ashmem/"
|
|
@@ -968,3 +969,5 @@ static int __init ashmem_init(void)
|
|
return ret;
|
|
}
|
|
device_initcall(ashmem_init);
|
|
+
|
|
+MODULE_LICENSE("GPL v2");
|
|
--
|
|
2.34.1
|
|
|