diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2009-05-13 18:56:25 -0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe2.(none)> | 2009-06-11 15:02:14 -0400 |
| commit | c31ae4bb4a9fa4606a74c0a4fb61b74f804e861e (patch) | |
| tree | 7694b1a05bc1ac660ac26eb9997200556ccd3933 /include/asm-generic/Kbuild | |
| parent | 63b852a6b67d0820d388b0ecd0da83ccb4048b8d (diff) | |
asm-generic: introduce asm/bitsperlong.h
This provides a reliable way for asm-generic/types.h and other
files to find out if it is running on a 32 or 64 bit platform.
We cannot use CONFIG_64BIT for this in headers that are included
from user space because CONFIG symbols are not available there.
We also cannot do it inside of asm/types.h because some headers
need the word size but cannot include types.h.
The solution is to introduce a new header <asm/bitsperlong.h>
that defines both __BITS_PER_LONG for user space and
BITS_PER_LONG for usage in the kernel. The asm-generic
version falls back to 32 bit unless the architecture overrides
it, which I did for all 64 bit platforms.
Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/asm-generic/Kbuild')
| -rw-r--r-- | include/asm-generic/Kbuild | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild index 460b08d51e2e..cbb437875f5c 100644 --- a/include/asm-generic/Kbuild +++ b/include/asm-generic/Kbuild | |||
| @@ -1,3 +1,4 @@ | |||
| 1 | header-y += bitsperlong.h | ||
| 1 | header-y += errno-base.h | 2 | header-y += errno-base.h |
| 2 | header-y += errno.h | 3 | header-y += errno.h |
| 3 | header-y += fcntl.h | 4 | header-y += fcntl.h |