Paul and Ingo,
The following are the changes to get dynamic ftrace working on PowerPC.
I modified these a little from the last postings.
1) I removed the changes to recordmcount.pl. This is not a PowerPC
change, although PowerPC needs it for dynamic ftrace. But
the changes here can go via linux-tip.
2) I removed the adding of HAVE_DYNAMIC_FTRACE and HAVE_FTRACE_MCOUNT_RECORD.
Without these config options, this code will not be compiled.
I have a separate patch that adds them in when the time is right.
Paul, these patches should not harm anything if you decide to pull them
in. As I stated above, without the above config options, they are
not enabled.
There is one exception and that is for the first patch. The first patch
is actually a fix for the irqsoff latency tracer which is already
in mainline for PowerPC.
These patches only touch PowerPC code.
The following patches are in:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
branch: ppc/ftrace
Steven Rostedt (5):
powerpc: ftrace, do not latency trace idle
powerpc: ftrace, convert to new dynamic ftrace arch API
powerpc: ftrace, use probe_kernel API to modify code
powerpc/ppc64: ftrace, handle module trampolines for dyn ftrace
powerpc/ppc32: ftrace, dynamic ftrace to handle modules
----
arch/powerpc/include/asm/ftrace.h | 14 +-
arch/powerpc/include/asm/module.h | 16 ++-
arch/powerpc/kernel/ftrace.c | 473 +++++++++++++++++++++++++++++++++---
arch/powerpc/kernel/idle.c | 5 +
arch/powerpc/kernel/module_32.c | 10 +
arch/powerpc/kernel/module_64.c | 13 +
6 files changed, 489 insertions(+), 42 deletions(-)
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