[PATCH] annotate arch/x86_64/lib/*.S

Add unwind annotations to arch/x86_64/lib/*.S, and also use the macros
provided by linux/linkage.h where-ever possible.

Some of the alternative instructions handling needed to be adjusted so
that the replacement code would also have valid unwind information.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 20 insertions, 12 deletions

diff --git a/arch/x86_64/lib/getuser.S b/arch/x86_64/lib/getuser.S
index 3844d5e885a4..5448876261f8 100644
--- a/arch/x86_64/lib/getuser.S
+++ b/arch/x86_64/lib/getuser.S
@@ -27,25 +27,26 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/dwarf2.h>
 #include <asm/page.h>
 #include <asm/errno.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 
         .text
-        .p2align 4
-.globl __get_user_1
-__get_user_1:   
+ENTRY(__get_user_1)
+        CFI_STARTPROC
         GET_THREAD_INFO(%r8)
         cmpq threadinfo_addr_limit(%r8),%rcx
         jae bad_get_user
 1:      movzb (%rcx),%edx
         xorl %eax,%eax
         ret
+        CFI_ENDPROC
+ENDPROC(__get_user_1)
 
-        .p2align 4
-.globl __get_user_2
-__get_user_2:
+ENTRY(__get_user_2)
+        CFI_STARTPROC
         GET_THREAD_INFO(%r8)
         addq $1,%rcx
         jc 20f
@@ -57,10 +58,11 @@ __get_user_2:
         ret
 20:     decq    %rcx
         jmp     bad_get_user
+        CFI_ENDPROC
+ENDPROC(__get_user_2)
 
-        .p2align 4
-.globl __get_user_4
-__get_user_4:
+ENTRY(__get_user_4)
+        CFI_STARTPROC
         GET_THREAD_INFO(%r8)
         addq $3,%rcx
         jc 30f
@@ -72,10 +74,11 @@ __get_user_4:
         ret
 30:     subq $3,%rcx
         jmp bad_get_user
+        CFI_ENDPROC
+ENDPROC(__get_user_4)
 
-        .p2align 4
-.globl __get_user_8
-__get_user_8:
+ENTRY(__get_user_8)
+        CFI_STARTPROC
         GET_THREAD_INFO(%r8)
         addq $7,%rcx
         jc 40f
@@ -87,11 +90,16 @@ __get_user_8:
         ret
 40:     subq $7,%rcx
         jmp bad_get_user
+        CFI_ENDPROC
+ENDPROC(__get_user_8)
 
 bad_get_user:
+        CFI_STARTPROC
         xorl %edx,%edx
         movq $(-EFAULT),%rax
         ret
+        CFI_ENDPROC
+END(bad_get_user)
 
 .section __ex_table,"a"
         .quad 1b,bad_get_user