aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/arm/lib/uaccess.S230
1 files changed, 116 insertions, 114 deletions
diff --git a/arch/arm/lib/uaccess.S b/arch/arm/lib/uaccess.S
index 6f1b5b49fe4c..0cc450f863b6 100644
--- a/arch/arm/lib/uaccess.S
+++ b/arch/arm/lib/uaccess.S
@@ -27,7 +27,7 @@
* Returns : Number of bytes NOT copied.
*/
-.c2u_dest_not_aligned:
+.Lc2u_dest_not_aligned:
rsb ip, ip, #4
cmp ip, #2
ldrb r3, [r1], #1
@@ -37,32 +37,32 @@ USER( strgebt r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #1
USER( strgtbt r3, [r0], #1) @ May fault
sub r2, r2, ip
- b .c2u_dest_aligned
+ b .Lc2u_dest_aligned
ENTRY(__arch_copy_to_user)
stmfd sp!, {r2, r4 - r7, lr}
cmp r2, #4
- blt .c2u_not_enough
+ blt .Lc2u_not_enough
ands ip, r0, #3
- bne .c2u_dest_not_aligned
-.c2u_dest_aligned:
+ bne .Lc2u_dest_not_aligned
+.Lc2u_dest_aligned:
ands ip, r1, #3
- bne .c2u_src_not_aligned
+ bne .Lc2u_src_not_aligned
/*
* Seeing as there has to be at least 8 bytes to copy, we can
* copy one word, and force a user-mode page fault...
*/
-.c2u_0fupi: subs r2, r2, #4
+.Lc2u_0fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .c2u_0nowords
+ bmi .Lc2u_0nowords
ldr r3, [r1], #4
USER( strt r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .c2u_0fupi
+ beq .Lc2u_0fupi
/*
* ip = max no. of bytes to copy before needing another "strt" insn
*/
@@ -70,16 +70,16 @@ USER( strt r3, [r0], #4) @ May fault
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #32
- blt .c2u_0rem8lp
+ blt .Lc2u_0rem8lp
-.c2u_0cpy8lp: ldmia r1!, {r3 - r6}
+.Lc2u_0cpy8lp: ldmia r1!, {r3 - r6}
stmia r0!, {r3 - r6} @ Shouldnt fault
ldmia r1!, {r3 - r6}
subs ip, ip, #32
stmia r0!, {r3 - r6} @ Shouldnt fault
- bpl .c2u_0cpy8lp
+ bpl .Lc2u_0cpy8lp
-.c2u_0rem8lp: cmn ip, #16
+.Lc2u_0rem8lp: cmn ip, #16
ldmgeia r1!, {r3 - r6}
stmgeia r0!, {r3 - r6} @ Shouldnt fault
tst ip, #8
@@ -89,33 +89,33 @@ USER( strt r3, [r0], #4) @ May fault
ldrne r3, [r1], #4
strnet r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
- beq .c2u_0fupi
-.c2u_0nowords: teq ip, #0
- beq .c2u_finished
-.c2u_nowords: cmp ip, #2
+ beq .Lc2u_0fupi
+.Lc2u_0nowords: teq ip, #0
+ beq .Lc2u_finished
+.Lc2u_nowords: cmp ip, #2
ldrb r3, [r1], #1
USER( strbt r3, [r0], #1) @ May fault
ldrgeb r3, [r1], #1
USER( strgebt r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #1
USER( strgtbt r3, [r0], #1) @ May fault
- b .c2u_finished
+ b .Lc2u_finished
-.c2u_not_enough:
+.Lc2u_not_enough:
movs ip, r2
- bne .c2u_nowords
-.c2u_finished: mov r0, #0
+ bne .Lc2u_nowords
+.Lc2u_finished: mov r0, #0
LOADREGS(fd,sp!,{r2, r4 - r7, pc})
-.c2u_src_not_aligned:
+.Lc2u_src_not_aligned:
bic r1, r1, #3
ldr r7, [r1], #4
cmp ip, #2
- bgt .c2u_3fupi
- beq .c2u_2fupi
-.c2u_1fupi: subs r2, r2, #4
+ bgt .Lc2u_3fupi
+ beq .Lc2u_2fupi
+.Lc2u_1fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .c2u_1nowords
+ bmi .Lc2u_1nowords
mov r3, r7, pull #8
ldr r7, [r1], #4
orr r3, r3, r7, push #24
@@ -123,14 +123,14 @@ USER( strt r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .c2u_1fupi
+ beq .Lc2u_1fupi
cmp r2, ip
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #16
- blt .c2u_1rem8lp
+ blt .Lc2u_1rem8lp
-.c2u_1cpy8lp: mov r3, r7, pull #8
+.Lc2u_1cpy8lp: mov r3, r7, pull #8
ldmia r1!, {r4 - r7}
subs ip, ip, #16
orr r3, r3, r4, push #24
@@ -141,9 +141,9 @@ USER( strt r3, [r0], #4) @ May fault
mov r6, r6, pull #8
orr r6, r6, r7, push #24
stmia r0!, {r3 - r6} @ Shouldnt fault
- bpl .c2u_1cpy8lp
+ bpl .Lc2u_1cpy8lp
-.c2u_1rem8lp: tst ip, #8
+.Lc2u_1rem8lp: tst ip, #8
movne r3, r7, pull #8
ldmneia r1!, {r4, r7}
orrne r3, r3, r4, push #24
@@ -156,21 +156,21 @@ USER( strt r3, [r0], #4) @ May fault
orrne r3, r3, r7, push #24
strnet r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
- beq .c2u_1fupi
-.c2u_1nowords: mov r3, r7, get_byte_1
+ beq .Lc2u_1fupi
+.Lc2u_1nowords: mov r3, r7, get_byte_1
teq ip, #0
- beq .c2u_finished
+ beq .Lc2u_finished
cmp ip, #2
USER( strbt r3, [r0], #1) @ May fault
movge r3, r7, get_byte_2
USER( strgebt r3, [r0], #1) @ May fault
movgt r3, r7, get_byte_3
USER( strgtbt r3, [r0], #1) @ May fault
- b .c2u_finished
+ b .Lc2u_finished
-.c2u_2fupi: subs r2, r2, #4
+.Lc2u_2fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .c2u_2nowords
+ bmi .Lc2u_2nowords
mov r3, r7, pull #16
ldr r7, [r1], #4
orr r3, r3, r7, push #16
@@ -178,14 +178,14 @@ USER( strt r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .c2u_2fupi
+ beq .Lc2u_2fupi
cmp r2, ip
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #16
- blt .c2u_2rem8lp
+ blt .Lc2u_2rem8lp
-.c2u_2cpy8lp: mov r3, r7, pull #16
+.Lc2u_2cpy8lp: mov r3, r7, pull #16
ldmia r1!, {r4 - r7}
subs ip, ip, #16
orr r3, r3, r4, push #16
@@ -196,9 +196,9 @@ USER( strt r3, [r0], #4) @ May fault
mov r6, r6, pull #16
orr r6, r6, r7, push #16
stmia r0!, {r3 - r6} @ Shouldnt fault
- bpl .c2u_2cpy8lp
+ bpl .Lc2u_2cpy8lp
-.c2u_2rem8lp: tst ip, #8
+.Lc2u_2rem8lp: tst ip, #8
movne r3, r7, pull #16
ldmneia r1!, {r4, r7}
orrne r3, r3, r4, push #16
@@ -211,21 +211,21 @@ USER( strt r3, [r0], #4) @ May fault
orrne r3, r3, r7, push #16
strnet r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
- beq .c2u_2fupi
-.c2u_2nowords: mov r3, r7, get_byte_2
+ beq .Lc2u_2fupi
+.Lc2u_2nowords: mov r3, r7, get_byte_2
teq ip, #0
- beq .c2u_finished
+ beq .Lc2u_finished
cmp ip, #2
USER( strbt r3, [r0], #1) @ May fault
movge r3, r7, get_byte_3
USER( strgebt r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #0
USER( strgtbt r3, [r0], #1) @ May fault
- b .c2u_finished
+ b .Lc2u_finished
-.c2u_3fupi: subs r2, r2, #4
+.Lc2u_3fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .c2u_3nowords
+ bmi .Lc2u_3nowords
mov r3, r7, pull #24
ldr r7, [r1], #4
orr r3, r3, r7, push #8
@@ -233,14 +233,14 @@ USER( strt r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .c2u_3fupi
+ beq .Lc2u_3fupi
cmp r2, ip
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #16
- blt .c2u_3rem8lp
+ blt .Lc2u_3rem8lp
-.c2u_3cpy8lp: mov r3, r7, pull #24
+.Lc2u_3cpy8lp: mov r3, r7, pull #24
ldmia r1!, {r4 - r7}
subs ip, ip, #16
orr r3, r3, r4, push #8
@@ -251,9 +251,9 @@ USER( strt r3, [r0], #4) @ May fault
mov r6, r6, pull #24
orr r6, r6, r7, push #8
stmia r0!, {r3 - r6} @ Shouldnt fault
- bpl .c2u_3cpy8lp
+ bpl .Lc2u_3cpy8lp
-.c2u_3rem8lp: tst ip, #8
+.Lc2u_3rem8lp: tst ip, #8
movne r3, r7, pull #24
ldmneia r1!, {r4, r7}
orrne r3, r3, r4, push #8
@@ -266,17 +266,17 @@ USER( strt r3, [r0], #4) @ May fault
orrne r3, r3, r7, push #8
strnet r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
- beq .c2u_3fupi
-.c2u_3nowords: mov r3, r7, get_byte_3
+ beq .Lc2u_3fupi
+.Lc2u_3nowords: mov r3, r7, get_byte_3
teq ip, #0
- beq .c2u_finished
+ beq .Lc2u_finished
cmp ip, #2
USER( strbt r3, [r0], #1) @ May fault
ldrgeb r3, [r1], #1
USER( strgebt r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #0
USER( strgtbt r3, [r0], #1) @ May fault
- b .c2u_finished
+ b .Lc2u_finished
.section .fixup,"ax"
.align 0
@@ -290,7 +290,7 @@ USER( strgtbt r3, [r0], #1) @ May fault
* : n - number of bytes to copy
* Returns : Number of bytes NOT copied.
*/
-.cfu_dest_not_aligned:
+.Lcfu_dest_not_aligned:
rsb ip, ip, #4
cmp ip, #2
USER( ldrbt r3, [r1], #1) @ May fault
@@ -300,31 +300,32 @@ USER( ldrgebt r3, [r1], #1) @ May fault
USER( ldrgtbt r3, [r1], #1) @ May fault
strgtb r3, [r0], #1
sub r2, r2, ip
- b .cfu_dest_aligned
+ b .Lcfu_dest_aligned
ENTRY(__arch_copy_from_user)
stmfd sp!, {r0, r2, r4 - r7, lr}
cmp r2, #4
- blt .cfu_not_enough
+ blt .Lcfu_not_enough
ands ip, r0, #3
- bne .cfu_dest_not_aligned
-.cfu_dest_aligned:
+ bne .Lcfu_dest_not_aligned
+.Lcfu_dest_aligned:
ands ip, r1, #3
- bne .cfu_src_not_aligned
+ bne .Lcfu_src_not_aligned
+
/*
* Seeing as there has to be at least 8 bytes to copy, we can
* copy one word, and force a user-mode page fault...
*/
-.cfu_0fupi: subs r2, r2, #4
+.Lcfu_0fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .cfu_0nowords
+ bmi .Lcfu_0nowords
USER( ldrt r3, [r1], #4)
str r3, [r0], #4
mov ip, r1, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .cfu_0fupi
+ beq .Lcfu_0fupi
/*
* ip = max no. of bytes to copy before needing another "strt" insn
*/
@@ -332,16 +333,16 @@ USER( ldrt r3, [r1], #4)
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #32
- blt .cfu_0rem8lp
+ blt .Lcfu_0rem8lp
-.cfu_0cpy8lp: ldmia r1!, {r3 - r6} @ Shouldnt fault
+.Lcfu_0cpy8lp: ldmia r1!, {r3 - r6} @ Shouldnt fault
stmia r0!, {r3 - r6}
ldmia r1!, {r3 - r6} @ Shouldnt fault
subs ip, ip, #32
stmia r0!, {r3 - r6}
- bpl .cfu_0cpy8lp
+ bpl .Lcfu_0cpy8lp
-.cfu_0rem8lp: cmn ip, #16
+.Lcfu_0rem8lp: cmn ip, #16
ldmgeia r1!, {r3 - r6} @ Shouldnt fault
stmgeia r0!, {r3 - r6}
tst ip, #8
@@ -351,34 +352,34 @@ USER( ldrt r3, [r1], #4)
ldrnet r3, [r1], #4 @ Shouldnt fault
strne r3, [r0], #4
ands ip, ip, #3
- beq .cfu_0fupi
-.cfu_0nowords: teq ip, #0
- beq .cfu_finished
-.cfu_nowords: cmp ip, #2
+ beq .Lcfu_0fupi
+.Lcfu_0nowords: teq ip, #0
+ beq .Lcfu_finished
+.Lcfu_nowords: cmp ip, #2
USER( ldrbt r3, [r1], #1) @ May fault
strb r3, [r0], #1
USER( ldrgebt r3, [r1], #1) @ May fault
strgeb r3, [r0], #1
USER( ldrgtbt r3, [r1], #1) @ May fault
strgtb r3, [r0], #1
- b .cfu_finished
+ b .Lcfu_finished
-.cfu_not_enough:
+.Lcfu_not_enough:
movs ip, r2
- bne .cfu_nowords
-.cfu_finished: mov r0, #0
+ bne .Lcfu_nowords
+.Lcfu_finished: mov r0, #0
add sp, sp, #8
LOADREGS(fd,sp!,{r4 - r7, pc})
-.cfu_src_not_aligned:
+.Lcfu_src_not_aligned:
bic r1, r1, #3
USER( ldrt r7, [r1], #4) @ May fault
cmp ip, #2
- bgt .cfu_3fupi
- beq .cfu_2fupi
-.cfu_1fupi: subs r2, r2, #4
+ bgt .Lcfu_3fupi
+ beq .Lcfu_2fupi
+.Lcfu_1fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .cfu_1nowords
+ bmi .Lcfu_1nowords
mov r3, r7, pull #8
USER( ldrt r7, [r1], #4) @ May fault
orr r3, r3, r7, push #24
@@ -386,14 +387,14 @@ USER( ldrt r7, [r1], #4) @ May fault
mov ip, r1, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .cfu_1fupi
+ beq .Lcfu_1fupi
cmp r2, ip
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #16
- blt .cfu_1rem8lp
+ blt .Lcfu_1rem8lp
-.cfu_1cpy8lp: mov r3, r7, pull #8
+.Lcfu_1cpy8lp: mov r3, r7, pull #8
ldmia r1!, {r4 - r7} @ Shouldnt fault
subs ip, ip, #16
orr r3, r3, r4, push #24
@@ -404,9 +405,9 @@ USER( ldrt r7, [r1], #4) @ May fault
mov r6, r6, pull #8
orr r6, r6, r7, push #24
stmia r0!, {r3 - r6}
- bpl .cfu_1cpy8lp
+ bpl .Lcfu_1cpy8lp
-.cfu_1rem8lp: tst ip, #8
+.Lcfu_1rem8lp: tst ip, #8
movne r3, r7, pull #8
ldmneia r1!, {r4, r7} @ Shouldnt fault
orrne r3, r3, r4, push #24
@@ -419,21 +420,21 @@ USER( ldrnet r7, [r1], #4) @ May fault
orrne r3, r3, r7, push #24
strne r3, [r0], #4
ands ip, ip, #3
- beq .cfu_1fupi
-.cfu_1nowords: mov r3, r7, get_byte_1
+ beq .Lcfu_1fupi
+.Lcfu_1nowords: mov r3, r7, get_byte_1
teq ip, #0
- beq .cfu_finished
+ beq .Lcfu_finished
cmp ip, #2
strb r3, [r0], #1
movge r3, r7, get_byte_2
strgeb r3, [r0], #1
movgt r3, r7, get_byte_3
strgtb r3, [r0], #1
- b .cfu_finished
+ b .Lcfu_finished
-.cfu_2fupi: subs r2, r2, #4
+.Lcfu_2fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .cfu_2nowords
+ bmi .Lcfu_2nowords
mov r3, r7, pull #16
USER( ldrt r7, [r1], #4) @ May fault
orr r3, r3, r7, push #16
@@ -441,14 +442,15 @@ USER( ldrt r7, [r1], #4) @ May fault
mov ip, r1, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .cfu_2fupi
+ beq .Lcfu_2fupi
cmp r2, ip
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #16
- blt .cfu_2rem8lp
+ blt .Lcfu_2rem8lp
+
-.cfu_2cpy8lp: mov r3, r7, pull #16
+.Lcfu_2cpy8lp: mov r3, r7, pull #16
ldmia r1!, {r4 - r7} @ Shouldnt fault
subs ip, ip, #16
orr r3, r3, r4, push #16
@@ -459,9 +461,9 @@ USER( ldrt r7, [r1], #4) @ May fault
mov r6, r6, pull #16
orr r6, r6, r7, push #16
stmia r0!, {r3 - r6}
- bpl .cfu_2cpy8lp
+ bpl .Lcfu_2cpy8lp
-.cfu_2rem8lp: tst ip, #8
+.Lcfu_2rem8lp: tst ip, #8
movne r3, r7, pull #16
ldmneia r1!, {r4, r7} @ Shouldnt fault
orrne r3, r3, r4, push #16
@@ -474,21 +476,21 @@ USER( ldrnet r7, [r1], #4) @ May fault
orrne r3, r3, r7, push #16
strne r3, [r0], #4
ands ip, ip, #3
- beq .cfu_2fupi
-.cfu_2nowords: mov r3, r7, get_byte_2
+ beq .Lcfu_2fupi
+.Lcfu_2nowords: mov r3, r7, get_byte_2
teq ip, #0
- beq .cfu_finished
+ beq .Lcfu_finished
cmp ip, #2
strb r3, [r0], #1
movge r3, r7, get_byte_3
strgeb r3, [r0], #1
USER( ldrgtbt r3, [r1], #0) @ May fault
strgtb r3, [r0], #1
- b .cfu_finished
+ b .Lcfu_finished
-.cfu_3fupi: subs r2, r2, #4
+.Lcfu_3fupi: subs r2, r2, #4
addmi ip, r2, #4
- bmi .cfu_3nowords
+ bmi .Lcfu_3nowords
mov r3, r7, pull #24
USER( ldrt r7, [r1], #4) @ May fault
orr r3, r3, r7, push #8
@@ -496,14 +498,14 @@ USER( ldrt r7, [r1], #4) @ May fault
mov ip, r1, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
- beq .cfu_3fupi
+ beq .Lcfu_3fupi
cmp r2, ip
movlt ip, r2
sub r2, r2, ip
subs ip, ip, #16
- blt .cfu_3rem8lp
+ blt .Lcfu_3rem8lp
-.cfu_3cpy8lp: mov r3, r7, pull #24
+.Lcfu_3cpy8lp: mov r3, r7, pull #24
ldmia r1!, {r4 - r7} @ Shouldnt fault
orr r3, r3, r4, push #8
mov r4, r4, pull #24
@@ -514,9 +516,9 @@ USER( ldrt r7, [r1], #4) @ May fault
orr r6, r6, r7, push #8
stmia r0!, {r3 - r6}
subs ip, ip, #16
- bpl .cfu_3cpy8lp
+ bpl .Lcfu_3cpy8lp
-.cfu_3rem8lp: tst ip, #8
+.Lcfu_3rem8lp: tst ip, #8
movne r3, r7, pull #24
ldmneia r1!, {r4, r7} @ Shouldnt fault
orrne r3, r3, r4, push #8
@@ -529,17 +531,17 @@ USER( ldrnet r7, [r1], #4) @ May fault
orrne r3, r3, r7, push #8
strne r3, [r0], #4
ands ip, ip, #3
- beq .cfu_3fupi
-.cfu_3nowords: mov r3, r7, get_byte_3
+ beq .Lcfu_3fupi
+.Lcfu_3nowords: mov r3, r7, get_byte_3
teq ip, #0
- beq .cfu_finished
+ beq .Lcfu_finished
cmp ip, #2
strb r3, [r0], #1
USER( ldrgebt r3, [r1], #1) @ May fault
strgeb r3, [r0], #1
USER( ldrgtbt r3, [r1], #1) @ May fault
strgtb r3, [r0], #1
- b .cfu_finished
+ b .Lcfu_finished
.section .fixup,"ax"
.align 0
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 15:49:23 +0000