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18e21eb671
Fix 'perf probe --line' option to show inlined function callsite lines
even if the function DIE has only ranges.
Without this:
# perf probe -L amd_put_event_constraints
...
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
__amd_put_nb_event_constraints(cpuc, event);
5 }
With this patch:
# perf probe -L amd_put_event_constraints
...
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
4 __amd_put_nb_event_constraints(cpuc, event);
5 }
Committer testing:
Before:
[root@quaco ~]# perf probe -L amd_put_event_constraints
<amd_put_event_constraints@/usr/src/debug/kernel-5.2.fc30/linux-5.2.18-200.fc30.x86_64/arch/x86/events/amd/core.c:0>
0 static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
struct perf_event *event)
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
__amd_put_nb_event_constraints(cpuc, event);
5 }
PMU_FORMAT_ATTR(event, "config:0-7,32-35");
PMU_FORMAT_ATTR(umask, "config:8-15" );
[root@quaco ~]#
After:
[root@quaco ~]# perf probe -L amd_put_event_constraints
<amd_put_event_constraints@/usr/src/debug/kernel-5.2.fc30/linux-5.2.18-200.fc30.x86_64/arch/x86/events/amd/core.c:0>
0 static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
struct perf_event *event)
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
4 __amd_put_nb_event_constraints(cpuc, event);
5 }
PMU_FORMAT_ATTR(event, "config:0-7,32-35");
PMU_FORMAT_ATTR(umask, "config:8-15" );
[root@quaco ~]# perf probe amd_put_event_constraints:4
Added new event:
probe:amd_put_event_constraints (on amd_put_event_constraints:4)
You can now use it in all perf tools, such as:
perf record -e probe:amd_put_event_constraints -aR sleep 1
[root@quaco ~]#
[root@quaco ~]# perf probe -l
probe:amd_put_event_constraints (on amd_put_event_constraints:4@arch/x86/events/amd/core.c)
probe:clear_tasks_mm_cpumask (on clear_tasks_mm_cpumask@kernel/cpu.c)
[root@quaco ~]#
Using it:
[root@quaco ~]# perf trace -e probe:*
^C[root@quaco ~]#
Ok, Intel system here... :-)
Fixes:
|
||
|---|---|---|
| .. | ||
| arch | ||
| bench | ||
| Documentation | ||
| examples/bpf | ||
| include/bpf | ||
| jvmti | ||
| lib | ||
| pmu-events | ||
| python | ||
| scripts | ||
| tests | ||
| trace | ||
| ui | ||
| util | ||
| .gitignore | ||
| Build | ||
| builtin-annotate.c | ||
| builtin-bench.c | ||
| builtin-buildid-cache.c | ||
| builtin-buildid-list.c | ||
| builtin-c2c.c | ||
| builtin-config.c | ||
| builtin-data.c | ||
| builtin-diff.c | ||
| builtin-evlist.c | ||
| builtin-ftrace.c | ||
| builtin-help.c | ||
| builtin-inject.c | ||
| builtin-kallsyms.c | ||
| builtin-kmem.c | ||
| builtin-kvm.c | ||
| builtin-list.c | ||
| builtin-lock.c | ||
| builtin-mem.c | ||
| builtin-probe.c | ||
| builtin-record.c | ||
| builtin-report.c | ||
| builtin-sched.c | ||
| builtin-script.c | ||
| builtin-stat.c | ||
| builtin-timechart.c | ||
| builtin-top.c | ||
| builtin-trace.c | ||
| builtin-version.c | ||
| builtin.h | ||
| check-headers.sh | ||
| command-list.txt | ||
| CREDITS | ||
| design.txt | ||
| Makefile | ||
| Makefile.config | ||
| Makefile.perf | ||
| MANIFEST | ||
| perf-archive.sh | ||
| perf-completion.sh | ||
| perf-read-vdso.c | ||
| perf-sys.h | ||
| perf-with-kcore.sh | ||
| perf.c | ||
| perf.h | ||