diff options
| author |   Glauber Costa <gcosta@redhat.com> | 2008-06-24 16:56:30 -0300 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-07-09 09:14:10 +0200 |
| commit | 766ed4282114eab616741107745b0dd11075e496 (patch) | |
| tree | 70327f17da3cf94adfd9a99230b4e1110f1464ca /arch/x86/lib | |
| parent | x86: change testing logic in putuser_64.S. (diff) | |
| download | linux-dev-766ed4282114eab616741107745b0dd11075e496.tar.xz linux-dev-766ed4282114eab616741107745b0dd11075e496.zip | |
x86: replace function headers by macros.
In putuser_64.S, do it the i386 way, and replace the code
in beginning and end of functions with macros, since it's
always the same thing. Save lines.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/lib')
| -rw-r--r-- | arch/x86/lib/putuser_64.S | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/arch/x86/lib/putuser_64.S b/arch/x86/lib/putuser_64.S index a96bd8a5298e..6d7513bf885e 100644 --- a/arch/x86/lib/putuser_64.S +++ b/arch/x86/lib/putuser_64.S @@ -31,62 +31,58 @@ #include <asm/asm-offsets.h> #include <asm/thread_info.h> +#define ENTER CFI_STARTPROC ; \ + GET_THREAD_INFO(%rbx) +#define EXIT ret ; \ + CFI_ENDPROC + .text ENTRY(__put_user_1) - CFI_STARTPROC - GET_THREAD_INFO(%rbx) + ENTER cmpq TI_addr_limit(%rbx),%rcx jae bad_put_user 1: movb %al,(%rcx) xorl %eax,%eax - ret - CFI_ENDPROC + EXIT ENDPROC(__put_user_1) ENTRY(__put_user_2) - CFI_STARTPROC - GET_THREAD_INFO(%rbx) + ENTER mov TI_addr_limit(%rbx),%rbx sub $1, %rbx cmpq %rbx ,%rcx jae bad_put_user 2: movw %ax,(%rcx) xorl %eax,%eax - ret - CFI_ENDPROC + EXIT ENDPROC(__put_user_2) ENTRY(__put_user_4) - CFI_STARTPROC - GET_THREAD_INFO(%rbx) + ENTER mov TI_addr_limit(%rbx),%rbx sub $3, %rbx cmp %rbx, %rcx jae bad_put_user 3: movl %eax,(%rcx) xorl %eax,%eax - ret - CFI_ENDPROC + EXIT ENDPROC(__put_user_4) ENTRY(__put_user_8) - CFI_STARTPROC - GET_THREAD_INFO(%rbx) + ENTER mov TI_addr_limit(%rbx),%rbx sub $7, %rbx cmp %rbx, %rcx jae bad_put_user 4: movq %rax,(%rcx) xorl %eax,%eax - ret - CFI_ENDPROC + EXIT ENDPROC(__put_user_8) bad_put_user: CFI_STARTPROC movq $(-EFAULT),%rax - ret - CFI_ENDPROC + EXIT END(bad_put_user) .section __ex_table,"a" |