[PATCH] i386: Add dwarf2 annotations to *_user and checksum functions
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
@@ -8,6 +8,8 @@
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* return an error value in addition to the "real"
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* return value.
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*/
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#include <linux/linkage.h>
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#include <asm/dwarf2.h>
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#include <asm/thread_info.h>
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@@ -23,23 +25,28 @@
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* as they get called from within inline assembly.
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*/
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#define ENTER pushl %ebx ; GET_THREAD_INFO(%ebx)
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#define EXIT popl %ebx ; ret
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#define ENTER CFI_STARTPROC ; \
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pushl %ebx ; \
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CFI_ADJUST_CFA_OFFSET 4 ; \
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CFI_REL_OFFSET ebx, 0 ; \
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GET_THREAD_INFO(%ebx)
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#define EXIT popl %ebx ; \
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CFI_ADJUST_CFA_OFFSET -4 ; \
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CFI_RESTORE ebx ; \
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ret ; \
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CFI_ENDPROC
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.text
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.align 4
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.globl __put_user_1
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__put_user_1:
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ENTRY(__put_user_1)
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ENTER
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cmpl TI_addr_limit(%ebx),%ecx
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jae bad_put_user
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1: movb %al,(%ecx)
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xorl %eax,%eax
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EXIT
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ENDPROC(__put_user_1)
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.align 4
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.globl __put_user_2
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__put_user_2:
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ENTRY(__put_user_2)
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ENTER
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movl TI_addr_limit(%ebx),%ebx
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subl $1,%ebx
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@@ -48,10 +55,9 @@ __put_user_2:
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2: movw %ax,(%ecx)
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xorl %eax,%eax
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EXIT
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ENDPROC(__put_user_2)
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.align 4
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.globl __put_user_4
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__put_user_4:
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ENTRY(__put_user_4)
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ENTER
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movl TI_addr_limit(%ebx),%ebx
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subl $3,%ebx
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@@ -60,10 +66,9 @@ __put_user_4:
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3: movl %eax,(%ecx)
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xorl %eax,%eax
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EXIT
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ENDPROC(__put_user_4)
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.align 4
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.globl __put_user_8
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__put_user_8:
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ENTRY(__put_user_8)
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ENTER
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movl TI_addr_limit(%ebx),%ebx
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subl $7,%ebx
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@@ -73,10 +78,16 @@ __put_user_8:
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5: movl %edx,4(%ecx)
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xorl %eax,%eax
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EXIT
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ENDPROC(__put_user_8)
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bad_put_user:
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CFI_STARTPROC simple
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CFI_DEF_CFA esp, 2*4
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CFI_OFFSET eip, -1*4
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CFI_OFFSET ebx, -2*4
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movl $-14,%eax
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EXIT
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END(bad_put_user)
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.section __ex_table,"a"
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.long 1b,bad_put_user
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