diff options
Diffstat (limited to 'arch/arm/kernel/entry-common.S')
| -rw-r--r-- | arch/arm/kernel/entry-common.S | 32 |
1 files changed, 4 insertions, 28 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 34711757ba5..a6c301e90a3 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -417,16 +417,6 @@ local_restart: ldr r10, [tsk, #TI_FLAGS] @ check for syscall tracing stmdb sp!, {r4, r5} @ push fifth and sixth args -#ifdef CONFIG_SECCOMP - tst r10, #_TIF_SECCOMP - beq 1f - mov r0, scno - bl __secure_computing - add r0, sp, #S_R0 + S_OFF @ pointer to regs - ldmia r0, {r0 - r3} @ have to reload r0 - r3 -1: -#endif - tst r10, #_TIF_SYSCALL_WORK @ are we tracing syscalls? bne __sys_trace @@ -458,11 +448,13 @@ __sys_trace: ldmccia r1, {r0 - r6} @ have to reload r0 - r6 stmccia sp, {r4, r5} @ and update the stack args ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine - b 2b + cmp scno, #-1 @ skip the syscall? + bne 2b + add sp, sp, #S_OFF @ restore stack + b ret_slow_syscall __sys_trace_return: str r0, [sp, #S_R0 + S_OFF]! @ save returned r0 - mov r1, scno mov r0, sp bl syscall_trace_exit b ret_slow_syscall @@ -510,22 +502,6 @@ sys_syscall: b sys_ni_syscall ENDPROC(sys_syscall) -sys_fork_wrapper: - add r0, sp, #S_OFF - b sys_fork -ENDPROC(sys_fork_wrapper) - -sys_vfork_wrapper: - add r0, sp, #S_OFF - b sys_vfork -ENDPROC(sys_vfork_wrapper) - -sys_clone_wrapper: - add ip, sp, #S_OFF - str ip, [sp, #4] - b sys_clone -ENDPROC(sys_clone_wrapper) - sys_sigreturn_wrapper: add r0, sp, #S_OFF mov why, #0 @ prevent syscall restart handling |