powerpc: Remove old compile time disabled syscall tracing code
authorMichael Ellerman <mpe@ellerman.id.au>
Wed, 14 Jan 2015 03:47:56 +0000 (14:47 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 2 Feb 2015 03:51:32 +0000 (14:51 +1100)
commita4bcbe6a41adcaa5e7f1830a7c1da8691d9d2b1d
tree6f1d9902db4dd2641f9a4848432e5380bd57f07d
parent4c3b21686111e0ac6018469dacbc5549f9915cf8
powerpc: Remove old compile time disabled syscall tracing code

We have code to do syscall tracing which is disabled at compile time by
default. It's not been touched since the dawn of time (ie. v2.6.12).

There are now better ways to do syscall tracing, ie. using the
raw_syscall, or syscall tracepoints.

For the specific case of tracing syscalls at boot on a system that
doesn't get to userspace, you can boot with:

  trace_event=syscalls tp_printk=on

Which will trace syscalls from boot, and echo all output to the console.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/entry_32.S
arch/powerpc/kernel/entry_64.S
arch/powerpc/kernel/syscalls.c