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| author | Markos Chandras <markos.chandras@imgtec.com> | 2014-01-02 15:55:58 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-03-26 23:09:13 +0100 |
| commit | 5cc494972adbaeff08a1b7544acaa608c68cd527 (patch) | |
| tree | d8f0f46710258c6aa70a7b4102cd11686fba603e /arch/mips/lib/strlen_user.S | |
| parent | 4968db4b9c4528b097ab4e549c4e0d0420dd1efc (diff) | |
| download | blackbird-op-linux-5cc494972adbaeff08a1b7544acaa608c68cd527.tar.gz blackbird-op-linux-5cc494972adbaeff08a1b7544acaa608c68cd527.zip | |
MIPS: lib: strlen_user: Use macro to build the strlen_user symbol
Build the __strlen_user symbol using a macro. In EVA mode we will
need to use similar code to do the userspace load operations so
it is better if we use a macro to avoid code duplications.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Diffstat (limited to 'arch/mips/lib/strlen_user.S')
| -rw-r--r-- | arch/mips/lib/strlen_user.S | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/mips/lib/strlen_user.S b/arch/mips/lib/strlen_user.S index e362dcdc69d1..6e8bdb373213 100644 --- a/arch/mips/lib/strlen_user.S +++ b/arch/mips/lib/strlen_user.S @@ -22,19 +22,23 @@ * * Return 0 for error */ -LEAF(__strlen_user_asm) + .macro __BUILD_STRLEN_ASM func +LEAF(__strlen_\func\()_asm) LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok? and v0, a0 - bnez v0, .Lfault + bnez v0, .Lfault\@ -FEXPORT(__strlen_user_nocheck_asm) +FEXPORT(__strlen_\func\()_nocheck_asm) move v0, a0 -1: EX(lbu, v1, (v0), .Lfault) +1: EX(lbu, v1, (v0), .Lfault\@) PTR_ADDIU v0, 1 bnez v1, 1b PTR_SUBU v0, a0 jr ra - END(__strlen_user_asm) + END(__strlen_\func\()_asm) -.Lfault: move v0, zero +.Lfault\@: move v0, zero jr ra + .endm + +__BUILD_STRLEN_ASM user |
