diff options
Diffstat (limited to 'arch/mips/kernel/scall64-o32.S')
-rw-r--r-- | arch/mips/kernel/scall64-o32.S | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index f1acdb429f4f..70f6acecd928 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -112,7 +112,20 @@ trace_a_syscall: move s0, t2 # Save syscall pointer move a0, sp - jal syscall_trace_enter + /* + * syscall number is in v0 unless we called syscall(__NR_###) + * where the real syscall number is in a0 + * note: NR_syscall is the first O32 syscall but the macro is + * only defined when compiling with -mabi=32 (CONFIG_32BIT) + * therefore __NR_O32_Linux is used (4000) + */ + addiu a1, v0, __NR_O32_Linux + bnez v0, 1f /* __NR_syscall at offset 0 */ + lw a1, PT_R4(sp) + +1: jal syscall_trace_enter + + bltz v0, 2f # seccomp failed? Skip syscall move t0, s0 RESTORE_STATIC @@ -136,7 +149,7 @@ trace_a_syscall: sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result - j syscall_exit +2: j syscall_exit /* ------------------------------------------------------------------------ */ @@ -541,4 +554,6 @@ EXPORT(sys32_call_table) PTR compat_sys_process_vm_writev PTR sys_kcmp PTR sys_finit_module + PTR sys_sched_setattr + PTR sys_sched_getattr /* 4350 */ .size sys32_call_table,.-sys32_call_table |