Blackfin: check for bad syscalls after tracing it
We want to report all system calls (even invalid ones) to the tracing layers, so check the NR only after we've notified. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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@ -626,13 +626,6 @@ ENTRY(_system_call)
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p0 = [sp + PT_ORIG_P0];
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#endif /* CONFIG_IPIPE */
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/* Check the System Call */
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r7 = __NR_syscall;
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/* System call number is passed in P0 */
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r6 = p0;
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cc = r6 < r7;
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if ! cc jump .Lbadsys;
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/* are we tracing syscalls?*/
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r7 = sp;
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r6.l = lo(ALIGN_PAGE_MASK);
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@ -645,6 +638,12 @@ ENTRY(_system_call)
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CC = BITTST(r7,TIF_SINGLESTEP);
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if CC JUMP _sys_trace;
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/* Make sure the system call # is valid */
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p4 = __NR_syscall;
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/* System call number is passed in P0 */
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cc = p4 <= p0;
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if cc jump .Lbadsys;
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/* Execute the appropriate system call */
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p4 = p0;
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@ -741,9 +740,14 @@ _sys_trace:
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r0 = sp;
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pseudo_long_call _syscall_trace_enter, p5;
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/* Execute the appropriate system call */
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/* Make sure the system call # is valid */
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p4 = [SP + PT_P0];
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p3 = __NR_syscall;
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cc = p3 <= p4;
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r0 = -ENOSYS;
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if cc jump .Lsys_trace_badsys;
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/* Execute the appropriate system call */
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p5.l = _sys_call_table;
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p5.h = _sys_call_table;
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p5 = p5 + (p4 << 2);
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@ -761,6 +765,7 @@ _sys_trace:
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SP += -12;
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call (p5);
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SP += 24;
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.Lsys_trace_badsys:
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[sp + PT_R0] = r0;
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r0 = sp;
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