[PATCH] i386: Add dwarf2 annotations to *_user and checksum functions
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Jan Beulich
Andi Kleen
parent
3755090722
commit
00e065ea58
@ -25,6 +25,8 @@
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/dwarf2.h>
|
||||
#include <asm/errno.h>
|
||||
|
||||
/*
|
||||
@ -36,8 +38,6 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl csum_partial
|
||||
|
||||
#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
|
||||
|
||||
@ -48,9 +48,14 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
|
||||
* Fortunately, it is easy to convert 2-byte alignment to 4-byte
|
||||
* alignment for the unrolled loop.
|
||||
*/
|
||||
csum_partial:
|
||||
ENTRY(csum_partial)
|
||||
CFI_STARTPROC
|
||||
pushl %esi
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET esi, 0
|
||||
pushl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET ebx, 0
|
||||
movl 20(%esp),%eax # Function arg: unsigned int sum
|
||||
movl 16(%esp),%ecx # Function arg: int len
|
||||
movl 12(%esp),%esi # Function arg: unsigned char *buff
|
||||
@ -128,16 +133,27 @@ csum_partial:
|
||||
roll $8, %eax
|
||||
8:
|
||||
popl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE ebx
|
||||
popl %esi
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE esi
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(csum_partial)
|
||||
|
||||
#else
|
||||
|
||||
/* Version for PentiumII/PPro */
|
||||
|
||||
csum_partial:
|
||||
ENTRY(csum_partial)
|
||||
CFI_STARTPROC
|
||||
pushl %esi
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET esi, 0
|
||||
pushl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET ebx, 0
|
||||
movl 20(%esp),%eax # Function arg: unsigned int sum
|
||||
movl 16(%esp),%ecx # Function arg: int len
|
||||
movl 12(%esp),%esi # Function arg: const unsigned char *buf
|
||||
@ -245,8 +261,14 @@ csum_partial:
|
||||
roll $8, %eax
|
||||
90:
|
||||
popl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE ebx
|
||||
popl %esi
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE esi
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(csum_partial)
|
||||
|
||||
#endif
|
||||
|
||||
@ -278,19 +300,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
|
||||
.long 9999b, 6002f ; \
|
||||
.previous
|
||||
|
||||
.align 4
|
||||
.globl csum_partial_copy_generic
|
||||
|
||||
#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
|
||||
|
||||
#define ARGBASE 16
|
||||
#define FP 12
|
||||
|
||||
csum_partial_copy_generic:
|
||||
ENTRY(csum_partial_copy_generic)
|
||||
CFI_STARTPROC
|
||||
subl $4,%esp
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
pushl %edi
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET edi, 0
|
||||
pushl %esi
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET esi, 0
|
||||
pushl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET ebx, 0
|
||||
movl ARGBASE+16(%esp),%eax # sum
|
||||
movl ARGBASE+12(%esp),%ecx # len
|
||||
movl ARGBASE+4(%esp),%esi # src
|
||||
@ -400,10 +427,19 @@ DST( movb %cl, (%edi) )
|
||||
.previous
|
||||
|
||||
popl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE ebx
|
||||
popl %esi
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE esi
|
||||
popl %edi
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE edi
|
||||
popl %ecx # equivalent to addl $4,%esp
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(csum_partial_copy_generic)
|
||||
|
||||
#else
|
||||
|
||||
@ -421,10 +457,17 @@ DST( movb %cl, (%edi) )
|
||||
|
||||
#define ARGBASE 12
|
||||
|
||||
csum_partial_copy_generic:
|
||||
ENTRY(csum_partial_copy_generic)
|
||||
CFI_STARTPROC
|
||||
pushl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET ebx, 0
|
||||
pushl %edi
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET edi, 0
|
||||
pushl %esi
|
||||
CFI_ADJUST_CFA_OFFSET 4
|
||||
CFI_REL_OFFSET esi, 0
|
||||
movl ARGBASE+4(%esp),%esi #src
|
||||
movl ARGBASE+8(%esp),%edi #dst
|
||||
movl ARGBASE+12(%esp),%ecx #len
|
||||
@ -485,9 +528,17 @@ DST( movb %dl, (%edi) )
|
||||
.previous
|
||||
|
||||
popl %esi
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE esi
|
||||
popl %edi
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE edi
|
||||
popl %ebx
|
||||
CFI_ADJUST_CFA_OFFSET -4
|
||||
CFI_RESTORE ebx
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(csum_partial_copy_generic)
|
||||
|
||||
#undef ROUND
|
||||
#undef ROUND1
|
||||
|
||||
@ -8,6 +8,8 @@
|
||||
* return an error value in addition to the "real"
|
||||
* return value.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/dwarf2.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
||||
|
||||
@ -24,19 +26,19 @@
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl __get_user_1
|
||||
__get_user_1:
|
||||
ENTRY(__get_user_1)
|
||||
CFI_STARTPROC
|
||||
GET_THREAD_INFO(%edx)
|
||||
cmpl TI_addr_limit(%edx),%eax
|
||||
jae bad_get_user
|
||||
1: movzbl (%eax),%edx
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(__get_user_1)
|
||||
|
||||
.align 4
|
||||
.globl __get_user_2
|
||||
__get_user_2:
|
||||
ENTRY(__get_user_2)
|
||||
CFI_STARTPROC
|
||||
addl $1,%eax
|
||||
jc bad_get_user
|
||||
GET_THREAD_INFO(%edx)
|
||||
@ -45,10 +47,11 @@ __get_user_2:
|
||||
2: movzwl -1(%eax),%edx
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(__get_user_2)
|
||||
|
||||
.align 4
|
||||
.globl __get_user_4
|
||||
__get_user_4:
|
||||
ENTRY(__get_user_4)
|
||||
CFI_STARTPROC
|
||||
addl $3,%eax
|
||||
jc bad_get_user
|
||||
GET_THREAD_INFO(%edx)
|
||||
@ -57,11 +60,16 @@ __get_user_4:
|
||||
3: movl -3(%eax),%edx
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
ENDPROC(__get_user_4)
|
||||
|
||||
bad_get_user:
|
||||
CFI_STARTPROC
|
||||
xorl %edx,%edx
|
||||
movl $-14,%eax
|
||||
ret
|
||||
CFI_ENDPROC
|
||||
END(bad_get_user)
|
||||
|
||||
.section __ex_table,"a"
|
||||
.long 1b,bad_get_user
|
||||
|
||||
@ -8,6 +8,8 @@
|
||||
* return an error value in addition to the "real"
|
||||
* return value.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/dwarf2.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
||||
|
||||
@ -23,23 +25,28 @@
|
||||
* as they get called from within inline assembly.
|
||||
*/
|
||||
|
||||
#define ENTER pushl %ebx ; GET_THREAD_INFO(%ebx)
|
||||
#define EXIT popl %ebx ; ret
|
||||
#define ENTER CFI_STARTPROC ; \
|
||||
pushl %ebx ; \
|
||||
CFI_ADJUST_CFA_OFFSET 4 ; \
|
||||
CFI_REL_OFFSET ebx, 0 ; \
|
||||
GET_THREAD_INFO(%ebx)
|
||||
#define EXIT popl %ebx ; \
|
||||
CFI_ADJUST_CFA_OFFSET -4 ; \
|
||||
CFI_RESTORE ebx ; \
|
||||
ret ; \
|
||||
CFI_ENDPROC
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl __put_user_1
|
||||
__put_user_1:
|
||||
ENTRY(__put_user_1)
|
||||
ENTER
|
||||
cmpl TI_addr_limit(%ebx),%ecx
|
||||
jae bad_put_user
|
||||
1: movb %al,(%ecx)
|
||||
xorl %eax,%eax
|
||||
EXIT
|
||||
ENDPROC(__put_user_1)
|
||||
|
||||
.align 4
|
||||
.globl __put_user_2
|
||||
__put_user_2:
|
||||
ENTRY(__put_user_2)
|
||||
ENTER
|
||||
movl TI_addr_limit(%ebx),%ebx
|
||||
subl $1,%ebx
|
||||
@ -48,10 +55,9 @@ __put_user_2:
|
||||
2: movw %ax,(%ecx)
|
||||
xorl %eax,%eax
|
||||
EXIT
|
||||
ENDPROC(__put_user_2)
|
||||
|
||||
.align 4
|
||||
.globl __put_user_4
|
||||
__put_user_4:
|
||||
ENTRY(__put_user_4)
|
||||
ENTER
|
||||
movl TI_addr_limit(%ebx),%ebx
|
||||
subl $3,%ebx
|
||||
@ -60,10 +66,9 @@ __put_user_4:
|
||||
3: movl %eax,(%ecx)
|
||||
xorl %eax,%eax
|
||||
EXIT
|
||||
ENDPROC(__put_user_4)
|
||||
|
||||
.align 4
|
||||
.globl __put_user_8
|
||||
__put_user_8:
|
||||
ENTRY(__put_user_8)
|
||||
ENTER
|
||||
movl TI_addr_limit(%ebx),%ebx
|
||||
subl $7,%ebx
|
||||
@ -73,10 +78,16 @@ __put_user_8:
|
||||
5: movl %edx,4(%ecx)
|
||||
xorl %eax,%eax
|
||||
EXIT
|
||||
ENDPROC(__put_user_8)
|
||||
|
||||
bad_put_user:
|
||||
CFI_STARTPROC simple
|
||||
CFI_DEF_CFA esp, 2*4
|
||||
CFI_OFFSET eip, -1*4
|
||||
CFI_OFFSET ebx, -2*4
|
||||
movl $-14,%eax
|
||||
EXIT
|
||||
END(bad_put_user)
|
||||
|
||||
.section __ex_table,"a"
|
||||
.long 1b,bad_put_user
|
||||
|
||||
Loading…
Reference in New Issue
Block a user