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authorRalf Baechle <ralf@linux-mips.org>2005-11-30 16:24:57 (GMT)
committerRalf Baechle <ralf@linux-mips.org>2005-12-01 11:05:17 (GMT)
commit04a7052c8399edc95b5e120c980823ccaade6aaf (patch)
tree230e75476b3d1fae60bfaf98d4e407d65b0be114 /arch
parentecd5a739048b4d94e4ae3545196eb752d6776c97 (diff)
downloadlinux-04a7052c8399edc95b5e120c980823ccaade6aaf.tar.xz
[MIPS] Fix register handling in syscalls when debugging.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/scall32-o32.S4
-rw-r--r--arch/mips/kernel/scall64-64.S4
-rw-r--r--arch/mips/kernel/scall64-n32.S4
-rw-r--r--arch/mips/kernel/scall64-o32.S4
4 files changed, 12 insertions, 4 deletions
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 2258fc6..a42e0e8 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -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
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index cb28de6..47bfbd4 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -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
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 7e66eb8..b465ced 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -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
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 5a16401..3d338ca 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -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