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[MIPS] Fix register handling in syscalls when debugging.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2005-11-30 16:24:57 +00:00
parent ecd5a73904
commit 04a7052c83
4 changed files with 12 additions and 4 deletions
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4
arch/mips/kernel/scall32-o32.S
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@ -94,11 +94,13 @@ syscall_trace_entry:
li a1, 0
jal do_syscall_trace
move t0, s0
RESTORE_STATIC
lw a0, PT_R4(sp) # Restore argument registers
lw a1, PT_R5(sp)
lw a2, PT_R6(sp)
lw a3, PT_R7(sp)
jalr s0
jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0

4
arch/mips/kernel/scall64-64.S
View file

@ -93,13 +93,15 @@ syscall_trace_entry:
li a1, 0
jal do_syscall_trace
move t0, s0
RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
ld a3, PT_R7(sp)
ld a4, PT_R8(sp)
ld a5, PT_R9(sp)
jalr s0
jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0

4
arch/mips/kernel/scall64-n32.S
View file

@ -90,13 +90,15 @@ n32_syscall_trace_entry:
li a1, 0
jal do_syscall_trace
move t0, s0
RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
ld a3, PT_R7(sp)
ld a4, PT_R8(sp)
ld a5, PT_R9(sp)
jalr s0
jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0

4
arch/mips/kernel/scall64-o32.S
View file

@ -124,6 +124,8 @@ trace_a_syscall:
li a1, 0
jal do_syscall_trace
move t0, s0
RESTORE_STATIC
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
@ -132,7 +134,7 @@ trace_a_syscall:
ld a5, PT_R9(sp)
ld a6, PT_R10(sp)
ld a7, PT_R11(sp) # For indirect syscalls
jalr s0
jalr t0
li t0, -EMAXERRNO - 1 # error?
sltu t0, t0, v0