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-rw-r--r--arch/mips/include/asm/ptrace.h4
-rw-r--r--arch/mips/kernel/asm-offsets.c6
-rw-r--r--arch/mips/kernel/scall32-o32.S8
3 files changed, 12 insertions, 6 deletions
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 4a2b40ce39e0..85fa9962266a 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -27,8 +27,8 @@
*/
struct pt_regs {
#ifdef CONFIG_32BIT
- /* Pad bytes for argument save space on the stack. */
- unsigned long pad0[8];
+ /* Saved syscall stack arguments; entries 0-3 unused. */
+ unsigned long args[8];
#endif
/* Saved main processor registers. */
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index cb1045ebab06..b910ec54a3a1 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -27,6 +27,12 @@ void output_ptreg_defines(void);
void output_ptreg_defines(void)
{
COMMENT("MIPS pt_regs offsets.");
+#ifdef CONFIG_32BIT
+ OFFSET(PT_ARG4, pt_regs, args[4]);
+ OFFSET(PT_ARG5, pt_regs, args[5]);
+ OFFSET(PT_ARG6, pt_regs, args[6]);
+ OFFSET(PT_ARG7, pt_regs, args[7]);
+#endif
OFFSET(PT_R0, pt_regs, regs[0]);
OFFSET(PT_R1, pt_regs, regs[1]);
OFFSET(PT_R2, pt_regs, regs[2]);
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 2c604717e630..4947a4f39e37 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -64,10 +64,10 @@ load_a6: user_lw(t7, 24(t0)) # argument #7 from usp
load_a7: user_lw(t8, 28(t0)) # argument #8 from usp
loads_done:
- sw t5, 16(sp) # argument #5 to ksp
- sw t6, 20(sp) # argument #6 to ksp
- sw t7, 24(sp) # argument #7 to ksp
- sw t8, 28(sp) # argument #8 to ksp
+ sw t5, PT_ARG4(sp) # argument #5 to ksp
+ sw t6, PT_ARG5(sp) # argument #6 to ksp
+ sw t7, PT_ARG6(sp) # argument #7 to ksp
+ sw t8, PT_ARG7(sp) # argument #8 to ksp
.set pop
.section __ex_table,"a"