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-rw-r--r--arch/x86_64/lib/getuser.S32
1 files changed, 20 insertions, 12 deletions
diff --git a/arch/x86_64/lib/getuser.S b/arch/x86_64/lib/getuser.S
index 3844d5e..5448876 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
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