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microblaze: uaccess: fix __get_user_asm macro

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It is used __FIXUP_SECTION and __EX_TABLE_SECTION macros.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2010-03-05 18:03:53 +01:00
parent 40b1156db0
commit c77a9c4bb7
1 changed files with 17 additions and 16 deletions
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33
arch/microblaze/include/asm/uaccess.h
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@ -231,24 +231,25 @@ extern long strnlen_user(const char *src, long count);
__gu_err; \
})
#define __get_user_asm(insn, __gu_ptr, __gu_val, __gu_err) \
({ \
__asm__ __volatile__ ( \
"1:" insn " %1, %2, r0; \
addk %0, r0, r0; \
2: \
.section .fixup,\"ax\"; \
3: brid 2b; \
addik %0, r0, %3; \
.previous; \
.section __ex_table,\"a\"; \
.word 1b,3b; \
.previous;" \
: "=r"(__gu_err), "=r"(__gu_val) \
: "r"(__gu_ptr), "i"(-EFAULT) \
); \
#define __get_user_asm(insn, __gu_ptr, __gu_val, __gu_err) \
({ \
__asm__ __volatile__ ( \
"1:" insn " %1, %2, r0;" \
" addk %0, r0, r0;" \
"2: " \
__FIXUP_SECTION \
"3: brid 2b; " \
" addik %0, r0, %3;" \
".previous;" \
__EX_TABLE_SECTION \
".word 1b,3b;" \
".previous;" \
: "=&r"(__gu_err), "=r"(__gu_val) \
: "r"(__gu_ptr), "i"(-EFAULT) \
); \
})
#define __put_user(x, ptr) \
({ \
__typeof__(*(ptr)) volatile __gu_val = (x); \