Naveen N. Rao 35b6f55aa9 trace/kprobes: Allow return probes with offsets and absolute addresses ...

Since the kernel includes many non-global functions with same names, we
will need to use offsets from other symbols (typically _text/_stext) or
absolute addresses to place return probes on specific functions. Also,
the core register_kretprobe() API never forbid use of offsets or
absolute addresses with kretprobes.

Allow its use with the trace infrastructure. To distinguish kernels that
support this, update ftrace README to explicitly call this out.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/183e7ce2921a08c9c755ee9a5da3134febc6695b.1487770934.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2017-03-03 19:07:18 -03:00

..

blktrace.c

blktrace: use existing disk debugfs directory

2017-02-02 10:20:16 -07:00

bpf_trace.c

bpf: mark all registered map/prog types as __ro_after_init

2017-02-17 13:40:04 -05:00

ftrace.c

ftrace: Have set_graph_function handle multiple functions in one write

2017-02-03 10:59:52 -05:00

Kconfig

perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS

2017-03-01 10:26:39 +01:00

Makefile

perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS

2017-03-01 10:26:39 +01:00

power-traces.c

…

ring_buffer_benchmark.c

…

ring_buffer.c

Merge tag 'trace-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2016-12-15 13:49:34 -08:00

rpm-traces.c

…

trace_benchmark.c

tracing: Fix return value check in trace_benchmark_reg()

2017-02-15 09:02:27 -05:00

trace_benchmark.h

tracing: Have the reg function allow to fail

2016-12-09 09:13:30 -05:00

trace_branch.c

tracing: Add the constant count for branch tracer

2017-01-19 08:57:41 -05:00

trace_clock.c

…

trace_entries.h

tracing: Add the constant count for branch tracer

2017-01-19 08:57:41 -05:00

trace_event_perf.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2016-05-17 16:26:30 -07:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing/filter: Define op as the enum that it is

2016-11-14 16:42:59 -05:00

trace_events_hist.c

tracing: Fix use-after-free in hist_register_trigger()

2016-08-02 15:16:30 -04:00

trace_events_trigger.c

tracing: Call traceoff trigger after event is recorded

2016-09-23 09:47:59 -04:00

trace_events.c

tracing: Have system enable return error if one of the events fail

2016-12-09 09:15:41 -05:00

trace_export.c

…

trace_functions_graph.c

tracing/fgraph: Have wakeup and irqsoff tracers ignore graph functions too

2016-12-09 09:21:35 -05:00

trace_functions.c

ftrace: Have set_ftrace_pid use the bitmap like events do

2016-06-20 09:54:19 -04:00

trace_hwlat.c

Merge tag 'trace-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2017-02-27 13:36:19 -08:00

trace_irqsoff.c

clocksource: Use a plain u64 instead of cycle_t

2016-12-25 11:04:12 +01:00

trace_kdb.c

…

trace_kprobe.c

trace/kprobes: Allow return probes with offsets and absolute addresses

2017-03-03 19:07:18 -03:00

trace_mmiotrace.c

tracing: Expose CPU physical addresses (resource values) for PCI devices

2016-06-20 09:54:22 -04:00

trace_nop.c

…

trace_output.c

tracing: add __print_flags_u64()

2017-02-22 16:41:26 -08:00

trace_output.h

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trace_printk.c

tracing: Handle NULL formats in hold_module_trace_bprintk_format()

2016-06-20 09:46:12 -04:00

trace_probe.c

tracing/probes: Fix a warning message to show correct maximum length

2017-02-15 10:32:48 -05:00

trace_probe.h

perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS

2017-03-01 10:26:39 +01:00

trace_sched_switch.c

…

trace_sched_wakeup.c

clocksource: Use a plain u64 instead of cycle_t

2016-12-25 11:04:12 +01:00

trace_selftest_dynamic.c

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trace_selftest.c

…

trace_seq.c

…

trace_stack.c

…

trace_stat.c

…

trace_stat.h

…

trace_syscalls.c

tracing/syscalls: fix multiline in error message text

2016-09-29 10:25:23 +02:00

trace_uprobe.c

tracing/probe: Show subsystem name in messages

2017-02-15 09:02:25 -05:00

trace.c

trace/kprobes: Allow return probes with offsets and absolute addresses

2017-03-03 19:07:18 -03:00

trace.h

tracing: Use modern function declaration

2017-02-15 09:02:27 -05:00

tracing_map.c

…

tracing_map.h

…