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-rw-r--r--arch/arm/kernel/entry-common.S17
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 1b560825e1cf..0385a8207b67 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -48,6 +48,8 @@ work_pending:
48 beq no_work_pending 48 beq no_work_pending
49 mov r0, sp @ 'regs' 49 mov r0, sp @ 'regs'
50 mov r2, why @ 'syscall' 50 mov r2, why @ 'syscall'
51 tst r1, #_TIF_SIGPENDING @ delivering a signal?
52 movne why, #0 @ prevent further restarts
51 bl do_notify_resume 53 bl do_notify_resume
52 b ret_slow_syscall @ Check work again 54 b ret_slow_syscall @ Check work again
53 55
@@ -293,7 +295,6 @@ ENTRY(vector_swi)
293 295
294 get_thread_info tsk 296 get_thread_info tsk
295 adr tbl, sys_call_table @ load syscall table pointer 297 adr tbl, sys_call_table @ load syscall table pointer
296 ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing
297 298
298#if defined(CONFIG_OABI_COMPAT) 299#if defined(CONFIG_OABI_COMPAT)
299 /* 300 /*
@@ -310,8 +311,20 @@ ENTRY(vector_swi)
310 eor scno, scno, #__NR_SYSCALL_BASE @ check OS number 311 eor scno, scno, #__NR_SYSCALL_BASE @ check OS number
311#endif 312#endif
312 313
314 ldr r10, [tsk, #TI_FLAGS] @ check for syscall tracing
313 stmdb sp!, {r4, r5} @ push fifth and sixth args 315 stmdb sp!, {r4, r5} @ push fifth and sixth args
314 tst ip, #_TIF_SYSCALL_TRACE @ are we tracing syscalls? 316
317#ifdef CONFIG_SECCOMP
318 tst r10, #_TIF_SECCOMP
319 beq 1f
320 mov r0, scno
321 bl __secure_computing
322 add r0, sp, #S_R0 + S_OFF @ pointer to regs
323 ldmia r0, {r0 - r3} @ have to reload r0 - r3
3241:
325#endif
326
327 tst r10, #_TIF_SYSCALL_TRACE @ are we tracing syscalls?
315 bne __sys_trace 328 bne __sys_trace
316 329
317 cmp scno, #NR_syscalls @ check upper syscall limit 330 cmp scno, #NR_syscalls @ check upper syscall limit