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Revert "UPSTREAM: ANDROID: binder: remove 32-bit binder interface."

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This reverts commit 9ffd98e815.
Which breaks 32bit Android <9
Make ANDROID_BINDER_IPC_32BIT depends on ANDROID_VERSION.

Change-Id: Ie599606ce998b27342471f31d1480d0a87135375
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
This commit is contained in:
Tao Huang 2018-08-06 17:03:29 +08:00
parent 97fd046dc2
commit 6b20cfbfee
2 changed files with 17 additions and 0 deletions
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13
drivers/android/Kconfig
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@ -31,6 +31,19 @@ config ANDROID_BINDER_DEVICES
created. Each binder device has its own context manager, and is
therefore logically separated from the other devices.
config ANDROID_BINDER_IPC_32BIT
bool
depends on !64BIT && ANDROID_BINDER_IPC
default y if ANDROID_VERSION < 0x09000000
---help---
The Binder API has been changed to support both 32 and 64bit
applications in a mixed environment.
Enable this to support an old 32-bit Android user-space (v4.4 and
earlier).
Note that enabling this will break newer Android user-space.
config ANDROID_BINDER_IPC_SELFTEST
bool "Android Binder IPC Driver Selftest"
depends on ANDROID_BINDER_IPC

4
drivers/android/binder.c
View File

@ -71,6 +71,10 @@
#include <linux/security.h>
#include <linux/spinlock.h>
#ifdef CONFIG_ANDROID_BINDER_IPC_32BIT
#define BINDER_IPC_32BIT 1
#endif
#include <uapi/linux/android/binder.h>
#include "binder_alloc.h"
#include "binder_trace.h"