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linux/tools/perf/util
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David Ahern 2b821cce1c perf evsel: Handle ENODEV on default cycles event 
Some systems (e.g., VMs on qemu-0.13 with the default vcpu model) report
an unsupported CPU model:

Performance Events: unsupported p6 CPU model 2 no PMU driver, software events only.

Subsequent invocations of perf fail with:

The sys_perf_event_open() syscall returned with 19 (No such device) for event (cycles).
/bin/dmesg may provide additional information.
No CONFIG_PERF_EVENTS=y kernel support configured?

Add ENODEV to the list of errno's to fallback to cpu-clock.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1374190079-28507-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-07-22 12:03:57 -03:00
..
include perf tools: Default to cpu// for events v5 2013-07-12 13:53:52 -03:00
scripting-engines perf script: Fix named threads support 2013-07-22 11:55:53 -03:00
abspath.c
alias.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
annotate.c perf annotate browser: Use disasm__calc_percent() 2013-03-15 13:06:06 -03:00
annotate.h perf tools: Remove dependency on libnewt 2013-04-01 12:23:21 -03:00
bitmap.c perf tools: Add bitmap_or function into bitmap object 2012-02-13 23:28:10 -02:00
build-id.c perf tools: Move build_id__sprintf into build-id object 2012-10-29 11:34:46 -02:00
build-id.h perf tools: Move BUILD_ID_SIZE into build-id object 2012-10-29 11:35:32 -02:00
cache.h perf ui: Always compile browser setup code 2012-11-14 16:53:03 -03:00
callchain.c perf tools: Fix calloc argument ordering 2013-02-06 18:09:28 -03:00
callchain.h perf record: Export the callchain parsing routine and help 2012-12-11 17:22:14 -03:00
cgroup.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
cgroup.h perf tool: Add cgroup support 2011-02-16 13:30:48 +01:00
color.c perf tools: Use scnprintf where applicable 2012-03-14 12:36:19 -03:00
color.h
config.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
cpumap.c perf stat: Add per-core aggregation 2013-03-25 16:13:26 -03:00
cpumap.h perf tools: Rename cpu_map__all() to cpu_map__empty() 2013-07-12 13:45:44 -03:00
ctype.c perf tools: ctype.c only wants util.h 2012-02-13 23:17:40 -02:00
debug.c perf tools: Fix TUI helpline output 2012-12-09 08:46:07 -03:00
debug.h perf evsel: Introduce perf_evsel__open_strerror method 2013-01-24 16:40:09 -03:00
dso.c perf symbols: Fix vdso list searching 2013-07-08 17:59:07 -03:00
dso.h perf symbols: Fix vdso list searching 2013-07-08 17:59:07 -03:00
dwarf-aux.c perf probe: Print an enum type variable in "enum variable-name" format when showing accessible variables 2012-09-27 10:58:57 -03:00
dwarf-aux.h perf probe: Search concrete out-of-line instances 2011-08-12 09:32:10 -03:00
environment.c
event.c perf tools: struct thread has a tid not a pid 2013-07-12 13:53:50 -03:00
event.h perf tools: Remove event types framework completely 2013-07-15 16:28:22 -03:00
evlist.c perf evlist: Tidy duplicated munmap code 2013-07-12 13:52:54 -03:00
evlist.h perf evlist: Introduce perf_evlist__close() 2013-03-15 13:06:10 -03:00
evsel.c perf evsel: Handle ENODEV on default cycles event 2013-07-22 12:03:57 -03:00
evsel.h perf stat: Introduce --repeat forever 2013-03-15 14:01:26 -03:00
exec_cmd.c perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
exec_cmd.h
generate-cmdlist.sh perf tools: Convert to LIBELF_SUPPORT 2012-09-28 21:07:36 -03:00
header.c perf header: Recognize version number for perf data file 2013-07-17 17:04:00 -03:00
header.h perf header: Recognize version number for perf data file 2013-07-17 17:04:00 -03:00
help.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
help.h
hist.c perf hists: Marking dummy hists entries 2013-07-12 13:54:04 -03:00
hist.h perf tools: Move hist_entry__period_snprintf into stdio code 2013-07-12 13:54:18 -03:00
hweight.c
intlist.c perf tools: Allow passing a list to intlist__new 2013-01-24 16:40:53 -03:00
intlist.h perf tools: Allow passing a list to intlist__new 2013-01-24 16:40:53 -03:00
levenshtein.c
levenshtein.h
machine.c perf report/top: Add option to collapse undesired parts of call graph 2013-07-12 13:53:55 -03:00
machine.h perf report/top: Add option to collapse undesired parts of call graph 2013-07-12 13:53:55 -03:00
map.c perf tools: Handle JITed code in shared memory 2013-05-28 16:23:58 +03:00
map.h perf tools: Stop using 'self' in map.[ch] 2013-01-25 12:49:28 -03:00
pager.c perf tools: Fix pager on minimal-install embedded systems 2012-05-30 15:10:39 -03:00
parse-events.c perf list: List kernel supplied event aliases 2013-07-12 13:53:53 -03:00
parse-events.h perf parse events: Demystify memory allocations 2013-07-12 13:52:05 -03:00
parse-events.l perf tools: Add basic event modifier sanity check 2012-11-14 16:52:24 -03:00
parse-events.y perf parse events: Demystify memory allocations 2013-07-12 13:52:05 -03:00
parse-options.c perf tools: Long option completion support for each subcommands 2012-10-02 18:36:44 -03:00
parse-options.h perf tools: Long option completion support for each subcommands 2012-10-02 18:36:44 -03:00
path.c perf tools: Convert to HAVE_STRLCPY 2012-10-02 18:36:24 -03:00
perf_regs.h perf tools: Convert to LIBUNWIND_SUPPORT 2012-10-02 17:56:01 -03:00
PERF-VERSION-GEN perf tools: Fix perf version generation 2013-07-08 18:09:52 -03:00
pmu.c perf list: List kernel supplied event aliases 2013-07-12 13:53:53 -03:00
pmu.h perf list: List kernel supplied event aliases 2013-07-12 13:53:53 -03:00
pmu.l perf tools: Add perf pmu object to access pmu format definition 2012-03-16 14:29:35 -03:00
pmu.y perf tools: Fix build with bison 2.3 and older. 2013-02-14 16:12:34 -03:00
probe-event.c perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
probe-event.h perf probe: Provide perf interface for uprobes 2012-05-11 13:58:17 -03:00
probe-finder.c perf probe: Allow of casting an array of char to string 2013-01-24 16:40:20 -03:00
probe-finder.h perf tools: Eliminate duplicate code and use PATH_MAX consistently 2011-11-28 10:11:04 -02:00
pstack.c perf tools: Stop using 'self' in pstack 2012-11-14 16:50:38 -03:00
pstack.h
python-ext-sources perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
python.c perf python: Fix breakage introduced by the test_attr infrastructure 2013-01-24 16:40:09 -03:00
quote.c
quote.h
rblist.c Account the nr_entries in rblist properly 2012-10-24 14:20:11 -02:00
rblist.h perf tools: Introducing rblist 2012-08-03 10:37:21 -03:00
run-command.c
run-command.h
session.c perf session: Use session->fd instead of passing fd as argument 2013-07-17 16:46:07 -03:00
session.h perf tools: Remove cwd from perf_session struct 2013-07-12 13:45:48 -03:00
setup.py perf tools: Merge all *CFLAGS* make variable into CFLAGS 2013-05-30 16:12:03 +03:00
sigchain.c
sigchain.h
sort.c perf report/top: Add option to collapse undesired parts of call graph 2013-07-12 13:53:55 -03:00
sort.h perf hists: Marking dummy hists entries 2013-07-12 13:54:04 -03:00
stat.c perf stats: Fix divide by 0 in variance 2013-05-28 16:24:04 +03:00
stat.h perf stat: Move stats related code to util/stat.c 2012-09-17 13:10:03 -03:00
strbuf.c perf tools: Fix strbuf_addf() when the buffer needs to grow 2012-10-30 10:32:56 -02:00
strbuf.h
strfilter.c perf: Fix missing strndup declaration 2011-03-04 01:17:18 +01:00
strfilter.h
string.c perf tools: Default to cpu// for events v5 2013-07-12 13:53:52 -03:00
strlist.c perf probe: Fix segfault 2013-03-13 17:00:33 -03:00
strlist.h perf tools: Stop using 'self' in strlist 2013-01-25 12:49:28 -03:00
svghelper.c perf timechart: Fix black idle boxes in the title 2011-02-28 08:56:14 +01:00
svghelper.h
symbol-elf.c perf report: Add --no-demangle option 2013-03-26 16:38:21 -03:00
symbol-minimal.c perf symbols: Include elf.h header regardless LIBELF_SUPPORT 2013-01-24 16:40:18 -03:00
symbol.c perf symbols: Do not apply symfs for an absolute vmlinux path 2013-07-17 12:23:57 -03:00
symbol.h perf tools: Add mem access sampling core support 2013-04-01 12:20:13 -03:00
sysfs.c perf tools: Fix possible (unlikely) buffer overflow 2013-01-24 16:40:18 -03:00
sysfs.h perf tools: Add sysfs mountpoint interface 2012-02-13 23:27:15 -02:00
target.c perf tools: Replace mempcpy with memcpy 2012-09-05 19:35:21 -03:00
target.h perf target: Add uses_mmap field 2012-05-17 12:32:54 -03:00
thread_map.c perf tools: fix thread_map__new_by_pid_str() memory leak in error path 2012-05-25 11:40:59 -03:00
thread_map.h perf evlist: Add thread_map__nr() helper 2013-03-15 13:06:02 -03:00
thread.c perf tools: struct thread has a tid not a pid 2013-07-12 13:53:50 -03:00
thread.h perf tools: struct thread has a tid not a pid 2013-07-12 13:53:50 -03:00
tool.h perf tools: Remove event types framework completely 2013-07-15 16:28:22 -03:00
top.c perf top: Fix percent output when no samples collected 2013-05-28 16:23:59 +03:00
top.h perf top: Add --percent-limit option 2013-05-28 16:24:01 +03:00
trace-event-info.c perf util: No need to call read_trace_init() in tracing_data_header() 2013-07-12 13:52:31 -03:00
trace-event-parse.c perf script: Adopt latency_format variable 2013-07-12 13:52:28 -03:00
trace-event-read.c perf util: Parse header_page to get proper long size 2013-07-12 13:52:24 -03:00
trace-event-scripting.c perf script: Fix named threads support 2013-07-22 11:55:53 -03:00
trace-event.h perf script: Fix named threads support 2013-07-22 11:55:53 -03:00
types.h perf tools: Add union u64_swap type for swapping u64 data 2012-05-22 12:50:25 -03:00
unwind.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
unwind.h perf tools: Convert to LIBUNWIND_SUPPORT 2012-10-02 17:56:01 -03:00
usage.c perf target: Introduce perf_target__parse_uid() 2012-05-07 16:46:48 -03:00
util.c perf util: Move debugfs/tracing helper functions to util.c 2013-07-12 13:46:00 -03:00
util.h perf util: Move debugfs/tracing helper functions to util.c 2013-07-12 13:46:00 -03:00
values.c perf tools: Fix a memory leak on perf_read_values_destroy 2011-12-20 13:41:34 -02:00
values.h
vdso.c perf symbols: Fix vdso list searching 2013-07-08 17:59:07 -03:00
vdso.h perf tools: Back [vdso] DSO with real data 2012-09-11 12:08:30 -03:00
wrapper.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
xyarray.c
xyarray.h