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ARC: pt_regs update #0: remove kernel stack canary

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This stack slot is going to be used in subsequent commits

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta 2013-05-27 18:29:16 +05:30
parent 3e1ae44188
commit bed30976e7
1 changed files with 0 additions and 18 deletions
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18
arch/arc/include/asm/entry.h
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@ -326,10 +326,6 @@
/* With current tsk in r9, get it's kernel mode stack base */ /* With current tsk in r9, get it's kernel mode stack base */
GET_TSK_STACK_BASE r9, r9 GET_TSK_STACK_BASE r9, r9
#ifdef PT_REGS_CANARY
st 0xabcdabcd, [r9, 0]
#endif
/* Save Pre Intr/Exception User SP on kernel stack */ /* Save Pre Intr/Exception User SP on kernel stack */
st.a sp, [r9, -12] ; Make room for orig_r0 and orig_r8 st.a sp, [r9, -12] ; Make room for orig_r0 and orig_r8
@ -437,11 +433,6 @@
lr r9, [erbta] lr r9, [erbta]
st.a r9, [sp, -4] st.a r9, [sp, -4]
#ifdef PT_REGS_CANARY
mov r9, 0xdeadbeef
st r9, [sp, -4]
#endif
/* move up by 1 word to "create" pt_regs->"stack_place_holder" */ /* move up by 1 word to "create" pt_regs->"stack_place_holder" */
sub sp, sp, 4 sub sp, sp, 4
.endm .endm
@ -540,10 +531,6 @@
lr r9, [bta_l1] lr r9, [bta_l1]
st.a r9, [sp, -4] st.a r9, [sp, -4]
#ifdef PT_REGS_CANARY
mov r9, 0xdeadbee1
st r9, [sp, -4]
#endif
/* move up by 1 word to "create" pt_regs->"stack_place_holder" */ /* move up by 1 word to "create" pt_regs->"stack_place_holder" */
sub sp, sp, 4 sub sp, sp, 4
.endm .endm
@ -575,11 +562,6 @@
lr r9, [bta_l2] lr r9, [bta_l2]
st.a r9, [sp, -4] st.a r9, [sp, -4]
#ifdef PT_REGS_CANARY
mov r9, 0xdeadbee2
st r9, [sp, -4]
#endif
/* move up by 1 word to "create" pt_regs->"stack_place_holder" */ /* move up by 1 word to "create" pt_regs->"stack_place_holder" */
sub sp, sp, 4 sub sp, sp, 4
.endm .endm