Masami Hiramatsu d434dae761 tracing: probeevent: Fix to support minus offset from symbol ...

commit c5d343b6b7 upstream.

In Documentation/trace/kprobetrace.txt, it says

 @SYM[+|-offs] : Fetch memory at SYM +|- offs (SYM should be a data symbol)

However, the parser doesn't parse minus offset correctly, since
commit 2fba0c8867 ("tracing/kprobes: Fix probe offset to be
unsigned") drops minus ("-") offset support for kprobe probe
address usage.

This fixes the traceprobe_split_symbol_offset() to parse minus
offset again with checking the offset range, and add a minus
offset check in kprobe probe address usage.

Link: http://lkml.kernel.org/r/152129028983.31874.13419301530285775521.stgit@devbox

Cc: Ingo Molnar <mingo@redhat.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Fixes: 2fba0c8867 ("tracing/kprobes: Fix probe offset to be unsigned")
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-03-28 18:39:23 +02:00

..

blktrace.c

blktrace: fix unlocked registration of tracepoints

2018-02-25 11:05:41 +01:00

bpf_trace.c

bpf: fix bpf_trace_printk on 32 bit archs

2017-08-30 10:21:39 +02:00

ftrace.c

ftrace: Remove incorrect setting of glob search field

2018-02-17 13:21:20 +01:00

Kconfig

Merge tag 'trace-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2016-10-06 11:48:41 -07:00

Makefile

Disable the __builtin_return_address() warning globally after all

2016-10-12 10:23:41 -07:00

power-traces.c

…

ring_buffer_benchmark.c

…

ring_buffer.c

ring-buffer: Mask out the info bits when returning buffer page length

2018-01-02 20:35:07 +01:00

rpm-traces.c

…

trace_benchmark.c

…

trace_benchmark.h

…

trace_branch.c

…

trace_clock.c

…

trace_entries.h

tracing: Add NMI tracing in hwlat detector

2016-09-02 12:47:55 -04:00

trace_event_perf.c

…

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Fix freeing of filter in create_filter() when set_str is false

2017-08-30 10:21:49 +02:00

trace_events_hist.c

tracing: Exclude 'generic fields' from histograms

2017-12-25 14:23:44 +01:00

trace_events_trigger.c

tracing: Call traceoff trigger after event is recorded

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

trace_events.c

tracing: Fix converting enum's from the map in trace_event_eval_update()

2018-01-23 19:57:07 +01:00

trace_export.c

…

trace_functions_graph.c

fgraph: Handle a case where a tracer ignores set_graph_notrace

2017-01-09 08:32:23 +01:00

trace_functions.c

…

trace_hwlat.c

tracing: Fix hwlat kthread migration

2017-02-09 08:08:28 +01:00

trace_irqsoff.c

…

trace_kdb.c

…

trace_kprobe.c

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:39:23 +02:00

trace_mmiotrace.c

…

trace_nop.c

…

trace_output.c

tracing: Add NMI tracing in hwlat detector

2016-09-02 12:47:55 -04:00

trace_output.h

…

trace_printk.c

…

trace_probe.c

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:39:23 +02:00

trace_probe.h

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:39:23 +02:00

trace_sched_switch.c

…

trace_sched_wakeup.c

…

trace_selftest_dynamic.c

…

trace_selftest.c

ftrace: Fix selftest goto location on error

2017-09-27 14:39:23 +02:00

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

Merge tag 'trace-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2016-10-06 11:48:41 -07:00

trace.c

tracing: Fix crash when it fails to alloc ring buffer

2018-01-02 20:35:07 +01:00

trace.h

ftrace: Fix function pid filter on instances

2017-04-21 09:31:22 +02:00

tracing_map.c

tracing: Fix kmemleak in tracing_map_array_free()

2017-08-30 10:21:49 +02:00

tracing_map.h

…