[RFC] ARM support for syscall tracing
stevenrwalter at gmail.com
Tue Nov 29 11:28:12 EST 2011
I recently noticed that "perf test" fails tests #2 - #4 on ARM. In
investigating that failure, I noticed that those tests rely on
FTRACE_SYSCALLS, which was not available on ARM.
It didn't look like too much work to enable HAVE_SYSCALL_TRACEPOINTS, so
that's what I did in the patches that follow. This is a
request-for-comment because I don't entirely understand some of the
changes I made, so it's quite likely that some parts are either
out-and-out wrong, or at least can be done a better way.
That said, the tests in "perf test" pass except for #1 (kallsyms), and
strace still seems to report sensible values for system calls.
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