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[SPARC64]: Fix fault handling in unaligned trap handler.

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We were not calling kernel_mna_trap_fault() correctly.
Instead of being fancy, just return 0 vs. -EFAULT from
the assembler stubs, and handle that return value as
appropriate.

Create an "__retl_efault" stub for assembler exception
table entries and use it where possible.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2005-09-28 20:41:45 -07:00
parent 8cf14af0a7
commit 5fd29752f0
6 changed files with 95 additions and 87 deletions
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65
arch/sparc64/kernel/una_asm.S
View File

@@ -6,13 +6,6 @@
.text
kernel_unaligned_trap_fault:
call kernel_mna_trap_fault
nop
retl
nop
.size kern_unaligned_trap_fault, .-kern_unaligned_trap_fault
.globl __do_int_store
__do_int_store:
rd %asi, %o4
@@ -51,24 +44,24 @@ __do_int_store:
0:
wr %o4, 0x0, %asi
retl
nop
mov 0, %o0
.size __do_int_store, .-__do_int_store
.section __ex_table
.word 4b, kernel_unaligned_trap_fault
.word 5b, kernel_unaligned_trap_fault
.word 6b, kernel_unaligned_trap_fault
.word 7b, kernel_unaligned_trap_fault
.word 8b, kernel_unaligned_trap_fault
.word 9b, kernel_unaligned_trap_fault
.word 10b, kernel_unaligned_trap_fault
.word 11b, kernel_unaligned_trap_fault
.word 12b, kernel_unaligned_trap_fault
.word 13b, kernel_unaligned_trap_fault
.word 14b, kernel_unaligned_trap_fault
.word 15b, kernel_unaligned_trap_fault
.word 16b, kernel_unaligned_trap_fault
.word 17b, kernel_unaligned_trap_fault
.word 4b, __retl_efault
.word 5b, __retl_efault
.word 6b, __retl_efault
.word 7b, __retl_efault
.word 8b, __retl_efault
.word 9b, __retl_efault
.word 10b, __retl_efault
.word 11b, __retl_efault
.word 12b, __retl_efault
.word 13b, __retl_efault
.word 14b, __retl_efault
.word 15b, __retl_efault
.word 16b, __retl_efault
.word 17b, __retl_efault
.previous
.globl do_int_load
@@ -133,21 +126,21 @@ do_int_load:
0:
wr %o5, 0x0, %asi
retl
nop
mov 0, %o0
.size __do_int_load, .-__do_int_load
.section __ex_table
.word 4b, kernel_unaligned_trap_fault
.word 5b, kernel_unaligned_trap_fault
.word 6b, kernel_unaligned_trap_fault
.word 7b, kernel_unaligned_trap_fault
.word 8b, kernel_unaligned_trap_fault
.word 9b, kernel_unaligned_trap_fault
.word 10b, kernel_unaligned_trap_fault
.word 11b, kernel_unaligned_trap_fault
.word 12b, kernel_unaligned_trap_fault
.word 13b, kernel_unaligned_trap_fault
.word 14b, kernel_unaligned_trap_fault
.word 15b, kernel_unaligned_trap_fault
.word 16b, kernel_unaligned_trap_fault
.word 4b, __retl_efault
.word 5b, __retl_efault
.word 6b, __retl_efault
.word 7b, __retl_efault
.word 8b, __retl_efault
.word 9b, __retl_efault
.word 10b, __retl_efault
.word 11b, __retl_efault
.word 12b, __retl_efault
.word 13b, __retl_efault
.word 14b, __retl_efault
.word 15b, __retl_efault
.word 16b, __retl_efault
.previous