|| ||Steven Rostedt <firstname.lastname@example.org> |
|| ||email@example.com |
|| ||[PATCH 0/6] [RFC v3] ftrace/kprobes: Setting up ftrace for kprobes |
|| ||Mon, 02 Jul 2012 16:03:22 -0400|
|| ||Ingo Molnar <firstname.lastname@example.org>,
Andrew Morton <email@example.com>,
Thomas Gleixner <firstname.lastname@example.org>,
Frederic Weisbecker <email@example.com>,
Masami Hiramatsu <firstname.lastname@example.org>,
"H. Peter Anvin" <email@example.com>|
|| ||Article, Thread
This is the (hopefully) final round of RFCs, for having kprobes use ftrace
as optimization. This round, I did not include Masami's patches that are
on top of this, simply because I posted them twice before with no changes.
I have them still on top of this series, but I'm only posting my set.
The final pull request will also include Masami's.
If you are interested in Masami's changes, you can find them here:
Patches 7 - 13 are mostly Masami's and some are mine. But none were changed
in this release. I may post them again after these are reviewed.
This round, I only did the updates that Masami recommended. I did not
modify the ones that he gave his 'Reviewed-by' tag, except to change
the change log to have that tag.
What was changed were:
Moved out the x86 changes into patch 5
Added a SAVED_REGS_IF_SUPPORTED flag, that can be set if the callback
can handle the regs parameter being NULL. If the ftrace_ops only has
SAVED_REGS set, it will fail the registering if the arch does not
support saving regs.
Incorporated x86 changes from the previous patch 3.
Have i386 restore flags on return of a function trace that saves regs.
Can you review those patches (I believe the rest have your Reviewed-by
already). Then I'll add that tag and push for a pull request.
Steven Rostedt (6):
ftrace: Pass ftrace_ops as third parameter to function trace callback
ftrace: Consolidate arch dependent functions with 'list' function
ftrace: Return pt_regs to function trace callback
ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer
ftrace/x86: Add separate function to save regs
ftrace/x86: Add save_regs for i386 function calls
arch/x86/include/asm/ftrace.h | 47 +++++---
arch/x86/kernel/entry_32.S | 56 +++++++++
arch/x86/kernel/entry_64.S | 89 ++++++++++++--
arch/x86/kernel/ftrace.c | 73 +++++++++++-
include/linux/ftrace.h | 138 ++++++++++++++++++++--
kernel/trace/ftrace.c | 236 +++++++++++++++++++++++++------------
kernel/trace/trace_event_perf.c | 3 +-
kernel/trace/trace_events.c | 3 +-
kernel/trace/trace_functions.c | 10 +-
kernel/trace/trace_irqsoff.c | 3 +-
kernel/trace/trace_sched_wakeup.c | 3 +-
kernel/trace/trace_selftest.c | 20 +++-
kernel/trace/trace_stack.c | 3 +-
13 files changed, 557 insertions(+), 127 deletions(-)