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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-10-27 16:43:19 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-29 08:47:49 +0100 |
| commit | b0ef07324310d66f660a311d4a8d669eda74f801 (patch) | |
| tree | 76ca8d6947e9238254fe8b5b7264ba51bd24d618 /tools/perf/builtin-probe.c | |
| parent | 253977b0d87fbb793f12b1661a763ae264028ccf (diff) | |
| download | op-kernel-dev-b0ef07324310d66f660a311d4a8d669eda74f801.zip op-kernel-dev-b0ef07324310d66f660a311d4a8d669eda74f801.tar.gz | |
perf/probes: Support function entry relative line number
Add function-entry relative line number specifying support to
perf-probe. This allows users to define probes by line number
from entry of the function.
e.g.
perf probe schedule:16
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
LKML-Reference: <20091027204319.30545.30678.stgit@harusame>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-probe.c')
| -rw-r--r-- | tools/perf/builtin-probe.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index 92b4c49..a99a366 100644 --- a/tools/perf/builtin-probe.c +++ b/tools/perf/builtin-probe.c @@ -133,17 +133,16 @@ static void parse_probe_point(char *arg, struct probe_point *pp) } /* Exclusion check */ - if (pp->line && pp->function) - semantic_error("Function-relative line number is not" - " supported yet."); + if (pp->line && pp->offset) + semantic_error("Offset can't be used with line number."); if (!pp->line && pp->file && !pp->function) semantic_error("File always requires line number."); if (pp->offset && !pp->function) semantic_error("Offset requires an entry function."); if (pp->retprobe && !pp->function) semantic_error("Return probe requires an entry function."); - if (pp->offset && pp->retprobe) - semantic_error("Offset can't be used with return probe."); + if ((pp->offset || pp->line) && pp->retprobe) + semantic_error("Offset/Line can't be used with return probe."); pr_debug("symbol:%s file:%s line:%d offset:%d, return:%d\n", pp->function, pp->file, pp->line, pp->offset, pp->retprobe); @@ -270,7 +269,7 @@ static const struct option options[] = { #ifdef NO_LIBDWARF "FUNC[+OFFS|%return] [ARG ...]", #else - "FUNC[+OFFS|%return][@SRC]|SRC:LINE [ARG ...]", + "FUNC[+OFFS|%return|:RLN][@SRC]|SRC:ALN [ARG ...]", #endif "probe point definition, where\n" "\t\tGRP:\tGroup name (optional)\n" @@ -282,7 +281,8 @@ static const struct option options[] = { "\t\tARG:\tProbe argument (only \n" #else "\t\tSRC:\tSource code path\n" - "\t\tLINE:\tLine number\n" + "\t\tRLN:\tRelative line number from function entry.\n" + "\t\tALN:\tAbsolute line number in file.\n" "\t\tARG:\tProbe argument (local variable name or\n" #endif "\t\t\tkprobe-tracer argument format is supported.)\n", |
