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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-06-21 20:38:17 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-28 17:59:46 +0100 |
| commit | 9641c7cc5a7f6d5c9dc9b43eea4e5f8c3c08c94e (patch) | |
| tree | 5ff57feabe0538d58404ec4918b0d94d75f69846 /arch/arm/kernel/armksyms.c | |
| parent | 002547b4f86c27bfac5bae344b723d250857be6b (diff) | |
| download | linux-9641c7cc5a7f6d5c9dc9b43eea4e5f8c3c08c94e.tar.gz linux-9641c7cc5a7f6d5c9dc9b43eea4e5f8c3c08c94e.tar.xz | |
[ARM] nommu: uaccess tweaks
MMUless systems have only one address space for all threads, so
both the usual access_ok() checks, and the exception handling do
not make much sense.
Hence, discard the fixup and exception tables at link time, use
memcpy/memset for the user copy/clearing functions, and define
the permission check macros to be constants.
Some of this patch was derived from the equivalent patch by
Hyok S. Choi.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/armksyms.c')
| -rw-r--r-- | arch/arm/kernel/armksyms.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c index f8bb7abd3e9b..da69e660574b 100644 --- a/arch/arm/kernel/armksyms.c +++ b/arch/arm/kernel/armksyms.c @@ -109,11 +109,13 @@ EXPORT_SYMBOL(memchr); EXPORT_SYMBOL(__memzero); /* user mem (segment) */ +EXPORT_SYMBOL(__strnlen_user); +EXPORT_SYMBOL(__strncpy_from_user); + +#ifdef CONFIG_MMU EXPORT_SYMBOL(__copy_from_user); EXPORT_SYMBOL(__copy_to_user); EXPORT_SYMBOL(__clear_user); -EXPORT_SYMBOL(__strnlen_user); -EXPORT_SYMBOL(__strncpy_from_user); EXPORT_SYMBOL(__get_user_1); EXPORT_SYMBOL(__get_user_2); @@ -123,6 +125,7 @@ EXPORT_SYMBOL(__put_user_1); EXPORT_SYMBOL(__put_user_2); EXPORT_SYMBOL(__put_user_4); EXPORT_SYMBOL(__put_user_8); +#endif /* crypto hash */ EXPORT_SYMBOL(sha_transform); |