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1497e804d1
linux/tools/perf
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Stephane Eranian 1497e804d1 perf tools: Handle TOPOLOGY headers with no CPU 
This patch fixes an issue in cpumap.c when used with the TOPOLOGY
header. In some configurations, some NUMA nodes may have no CPU (empty
cpulist). Yet a cpumap map must be created otherwise perf abort with an
error. This patch handles this case by creating a dummy map.

  Before:

  $ perf record -o - -e cycles noploop 2 | perf script -i -
  0x6e8 [0x6c]: failed to process type: 80

  After:

  $ perf record -o - -e cycles noploop 2 | perf script -i -
  noploop for 2 seconds

Signed-off-by: Stephane Eranian <eranian@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1547885559-1657-1-git-send-email-eranian@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-01-21 11:28:56 -03:00
..
arch perf powerpc: Rework syscall table generation 2019-01-10 10:34:52 -03:00
bench perf bench: Add epoll_ctl(2) benchmark 2018-11-21 22:39:55 -03:00
Documentation perf trace: Allow asking for not suppressing common string prefixes 2018-12-18 16:07:42 -03:00
examples/bpf perf augmented_raw_syscalls: Copy 'access' arg as well 2018-12-18 16:15:18 -03:00
include/bpf perf bpf: Move perf_event_output() from stdio.h to bpf.h 2018-12-18 12:23:58 -03:00
jvmti perf jvmti: Separate jvmti cmlr check 2018-11-21 22:39:58 -03:00
pmu-events nds32 patches for 4.21 2018-12-29 09:37:03 -08:00
python perf python: Make twatch.py work with both python2 and python3 2018-02-19 12:28:08 -03:00
scripts perf scripts python: exported-sql-viewer.py: Fix table find when table re-ordered 2018-11-05 14:53:00 -03:00
tests perf tests: Add a test for the ARM 32-bit [vectors] page 2019-01-08 13:28:13 -03:00
trace perf beauty: Switch from using uapi/linux/fs.h to uapi/linux/mount.h 2019-01-08 14:09:33 -03:00
ui perf ui helpline: Use strlcpy() as a shorter form of strncpy() + explicit set nul 2018-12-17 14:59:23 -03:00
util perf tools: Handle TOPOLOGY headers with no CPU 2019-01-21 11:28:56 -03:00
.gitignore
Build
builtin-annotate.c perf tools: Remove perf_tool from event_op2 2018-09-19 10:25:10 -03:00
builtin-bench.c perf bench: Add epoll_ctl(2) benchmark 2018-11-21 22:39:55 -03:00
builtin-buildid-cache.c perf buildid-cache: Warn --purge-all failures 2018-05-15 10:32:16 -03:00
builtin-buildid-list.c
builtin-c2c.c perf c2c: Increase the HITM ratio limit for displayed cachelines 2018-12-28 16:33:07 -03:00
builtin-config.c perf config: Show the configuration when no arguments are provided 2018-12-18 12:24:00 -03:00
builtin-data.c
builtin-diff.c perf hists: Clarify callchain disabling when available 2018-07-24 14:37:33 -03:00
builtin-evlist.c
builtin-ftrace.c perf ftrace: Append an EOL when write tracing files 2018-02-19 09:49:12 -03:00
builtin-help.c perf help: Remove needless use of strncpy() 2018-12-17 14:59:18 -03:00
builtin-inject.c perf tools: Report itrace options in help 2018-09-19 15:06:59 -03:00
builtin-kallsyms.c perf machine: Ditch find_kernel_function variants 2018-04-30 12:20:54 -03:00
builtin-kmem.c tools lib traceevent, perf tools: Rename 'enum pevent_flag' to 'enum tep_flag' 2018-08-13 15:22:18 -03:00
builtin-kvm.c perf tools: Allow specifying proc-map-timeout in config file 2018-12-17 14:56:57 -03:00
builtin-list.c
builtin-lock.c
builtin-mem.c perf mem: Allow all record/report options 2018-04-18 15:35:48 -03:00
builtin-probe.c perf tools: No need to check if the argument to __get() function is NULL 2018-06-04 10:28:50 -03:00
builtin-record.c perf tools: Allow specifying proc-map-timeout in config file 2018-12-17 14:56:57 -03:00
builtin-report.c perf report: Display average IPC and IPC coverage per symbol 2018-12-17 14:55:44 -03:00
builtin-sched.c perf sched: Use sched->show_callchain where appropriate 2018-06-05 10:09:54 -03:00
builtin-script.c perf script: Fix crash with printing mixed trace point and other events 2019-01-18 09:53:07 -03:00
builtin-stat.c perf stat: Fix endless wait for child process 2019-01-03 12:12:18 -03:00
builtin-timechart.c perf tools: Add missing open_memstream() prototype for systems lacking it 2018-12-18 12:23:57 -03:00
builtin-top.c perf top: Lift restriction on using callchains without "sym" in --sort 2019-01-08 13:28:13 -03:00
builtin-trace.c perf trace: Fix alignment for [continued] lines 2019-01-08 13:28:12 -03:00
builtin-version.c perf version: Print status for syscall_table 2018-04-12 10:33:34 -03:00
builtin.h
check-headers.sh tools headers powerpc: Remove unistd.h 2019-01-10 10:42:08 -03:00
command-list.txt perf help: Add missing subcommand version 2018-09-19 14:53:36 -03:00
CREDITS
design.txt
Makefile perf tools: Disable parallelism for 'make clean' 2018-08-20 08:54:58 -03:00
Makefile.config perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz 2018-12-21 09:42:46 -03:00
Makefile.perf perf tools: Make find_vdso_map() more modular 2019-01-08 13:28:13 -03:00
MANIFEST
perf-archive.sh
perf-completion.sh
perf-read-vdso.c perf tools: Make find_vdso_map() more modular 2019-01-08 13:28:13 -03:00
perf-sys.h Drop a bunch of metag references 2018-02-23 14:29:59 +00:00
perf-with-kcore.sh
perf.c perf tools: Remove dead quote.[ch] code 2018-06-04 10:28:50 -03:00
perf.h perf tools: Allow specifying proc-map-timeout in config file 2018-12-17 14:56:57 -03:00