[PATCH] i386: Add dwarf2 annotations to *_user and checksum functions

Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 60 insertions, 9 deletions

diff --git a/arch/i386/lib/checksum.S b/arch/i386/lib/checksum.S
index 75ffd02654fc..adbccd0bbb78 100644
--- a/arch/i386/lib/checksum.S
+++ b/arch/i386/lib/checksum.S
@@ -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