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1934adf78e
linux/tools/perf/util
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Jiri Olsa 1934adf78e perf unwind: Do not fail due to missing unwind support 
We currently fail the MMAP event processing if we don't have the MMAP
event's specific arch unwind support compiled in.

That's wrong and can lead to unresolved mmaps in report output for 32bit
binaries on 64bit server, like in this example on x86_64 server:

  $ cat ex.c
  int main(int argc, char **argv)
  {
          while (1) {}
  }
  $ gcc -o ex -m32 ex.c
  $ perf record ./ex
  ^C[ perf record: Woken up 2 times to write data ]
  [ perf record: Captured and wrote 0.371 MB perf.data (9322 samples) ]

Before:
  $ perf report --stdio

  SNIP

  # Overhead  Command  Shared Object     Symbol
  # ........  .......  ................  ......................
  #
     100.00%  ex       [unknown]         [.] 0x00000000080483de
       0.00%  ex       [unknown]         [.] 0x00000000f76dba4f
       0.00%  ex       [unknown]         [.] 0x00000000f76e4c11
       0.00%  ex       [unknown]         [.] 0x00000000f76daa30

After:
  $ perf report --stdio

  SNIP

  # Overhead  Command  Shared Object  Symbol
  # ........  .......  .............  ...............
  #
     100.00%  ex       ex             [.] main
       0.00%  ex       ld-2.24.so     [.] _dl_start
       0.00%  ex       ld-2.24.so     [.] do_lookup_x
       0.00%  ex       ld-2.24.so     [.] _start

The fix is not to fail, just warn if there's not unwind support compiled
in.

Reported-by: Michael Lyle <mlyle@lyle.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170704131131.27508-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-04 11:43:58 -03:00
..
c++ perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
include perf probe: Support probing on offline cross-arch binary 2016-09-01 12:41:09 -03:00
intel-pt-decoder perf/core improvements and fixes: 2017-03-16 17:29:23 +01:00
libunwind perf unwind: Fix wrongly used regs for aarch64 unwind 2016-06-23 10:30:31 -03:00
scripting-engines perf script: Fix outdated comment for perf-trace-python 2017-06-07 20:23:22 -03:00
annotate.c perf annotate: Use dso__decompress_kmodule_path() 2017-06-08 15:39:02 -03:00
annotate.h perf annotate: Fix missing number of samples for source_line_samples 2017-04-04 21:08:00 -03:00
auxtrace.c perf tools: Move sane ctype stuff from util.h to sane_ctype.h 2017-04-19 13:01:48 -03:00
auxtrace.h perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
block-range.c perf annotate: Add branch stack / basic block 2016-09-08 13:44:03 -03:00
block-range.h perf annotate: Add branch stack / basic block 2016-09-08 13:44:03 -03:00
bpf-loader.c perf str{filter,list}: Disentangle headers 2017-04-19 13:01:52 -03:00
bpf-loader.h perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
bpf-prologue.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
bpf-prologue.h perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
Build perf memswap: Split the byteswap memory range wrappers from util.[ch] 2017-04-25 15:45:35 -03:00
build-id.c perf symbols: Kill dso__build_id_is_kmod() 2017-06-08 15:39:34 -03:00
build-id.h perf symbols: Kill dso__build_id_is_kmod() 2017-06-08 15:39:34 -03:00
cache.h perf tools: Remove support for command aliases 2017-03-28 11:19:59 -03:00
call-path.c perf tools: Refactor code to move call path handling out of thread-stack 2016-05-06 13:00:43 -03:00
call-path.h perf tools: Refactor code to move call path handling out of thread-stack 2016-05-06 13:00:43 -03:00
callchain.c perf report: Don't crash on invalid maps in -g srcline mode 2017-05-24 08:41:47 +02:00
callchain.h perf report: Enable sorting by srcline as key 2017-03-27 12:13:28 -03:00
cgroup.c perf tools: Replace STR() calls with __stringify() 2017-04-19 13:01:47 -03:00
cgroup.h perf cgroup: Convert cgroup_sel.refcnt from atomic_t to refcount_t 2017-03-03 19:07:14 -03:00
cloexec.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
cloexec.h tools build: Add test for sched_getcpu() 2017-03-03 19:07:19 -03:00
color.c perf tools: Uninline scnprintf() and vscnprint() 2016-07-12 15:20:24 -03:00
color.h perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
comm.c perf tools: Remove string.h from util.h 2017-04-24 13:43:32 -03:00
comm.h
compress.h perf tools: Add compress.h for the *_decompress_to_file() headers 2017-04-24 12:33:33 -03:00
config.c perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
config.h perf config: Mark where are config items from (user or system) 2016-11-14 13:10:37 -03:00
counts.c perf tools: Move path related functions to util/path.h 2017-04-19 13:01:53 -03:00
counts.h
cpumap.c perf tools: Remove include dirent.h from util.h 2017-04-19 13:01:55 -03:00
cpumap.h perf cpumap: Introduce cpu_map__snprint_mask() 2017-03-03 19:07:17 -03:00
cs-etm.h perf tools: Add coresight etm PMU record capabilities 2016-09-22 12:19:40 -03:00
ctype.c perf tools: Move sane ctype stuff from util.h to sane_ctype.h 2017-04-19 13:01:48 -03:00
data-convert-bt.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
data-convert-bt.h perf data ctf: Pass convert options through opts structure 2016-06-28 10:54:55 -03:00
data-convert.h perf data ctf: Add 'all' option 2016-06-28 10:54:56 -03:00
data.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
data.h
db-export.c perf thread: Adopt get_main_thread from db-export.c 2016-05-30 12:41:43 -03:00
db-export.h perf script: Add call path id to exported sample in db export 2016-05-06 13:00:53 -03:00
debug.c perf tools: Remove poll.h and wait.h from util.h 2017-04-24 13:43:34 -03:00
debug.h perf debug: Move dump_stack() and sighandler_dump_stack() to debug.h 2017-04-24 12:33:31 -03:00
demangle-java.c perf tools: Move sane ctype stuff from util.h to sane_ctype.h 2017-04-19 13:01:48 -03:00
demangle-java.h
demangle-rust.c perf symbols: Add Rust demangling 2016-07-12 16:12:38 -03:00
demangle-rust.h perf symbols: Add Rust demangling 2016-07-12 16:12:38 -03:00
drv_configs.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
drv_configs.h perf pmu: Push configuration down to PMU driver 2016-09-22 12:19:41 -03:00
dso.c perf tools: Consolidate error path in __open_dso() 2017-06-08 15:39:13 -03:00
dso.h perf tools: Introduce dso__decompress_kmodule_{fd,path} 2017-06-08 15:38:55 -03:00
dump-insn.c perf script: Add 'brstackinsn' for branch stacks 2017-03-16 09:24:35 -03:00
dump-insn.h perf script: Add 'brstackinsn' for branch stacks 2017-03-16 09:24:35 -03:00
dwarf-aux.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
dwarf-aux.h perf probe: Match linkage name with mangled name 2016-09-29 11:17:08 -03:00
dwarf-regs.c perf tools: Add include <linux/kernel.h> where ARRAY_SIZE() is used 2017-04-19 13:01:44 -03:00
env.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
env.h perf header: Transform nodes string info to struct 2016-07-04 19:39:01 -03:00
event.c perf symbols: Accept symbols starting at address 0 2017-05-02 18:23:04 -03:00
event.h perf tools: Fix spelling mistakes 2017-05-04 09:59:53 -03:00
evlist.c perf tools: Remove sys/ioctl.h from util.h 2017-04-24 13:43:32 -03:00
evlist.h perf tools: Add signal.h to places using its definitions 2017-04-20 13:22:43 -03:00
evsel_fprintf.c perf script: Add --inline option for debugging 2017-05-24 08:41:48 +02:00
evsel.c perf evsel: Set attr.exclude_kernel when probing max attr.precise_ip 2017-07-04 11:42:21 -03:00
evsel.h perf pmu: Add support for MetricName JSON attribute 2017-03-23 11:42:31 -03:00
expr.h perf tools: Add a simple expression parser for JSON 2017-03-23 11:39:27 -03:00
expr.y perf tools: Add a simple expression parser for JSON 2017-03-23 11:39:27 -03:00
find-vdso-map.c
genelf_debug.c
genelf.c perf jit: Generate .eh_frame/.eh_frame_hdr in DSO 2016-10-24 11:07:40 -03:00
genelf.h perf jit: Generate .eh_frame/.eh_frame_hdr in DSO 2016-10-24 11:07:40 -03:00
generate-cmdlist.sh
group.h perf stat: Basic support for TopDown in perf stat 2016-06-06 17:04:15 -03:00
header.c perf tools: Fix build with ARCH=x86_64 2017-06-14 15:44:29 -03:00
header.h perf pmu: Use pmu_events table to create aliases 2016-10-03 19:58:00 -03:00
help-unknown-cmd.c perf tools: Remove poll.h and wait.h from util.h 2017-04-24 13:43:34 -03:00
help-unknown-cmd.h
hist.c perf tools: Use just forward declarations for struct thread where possible 2017-04-24 13:43:35 -03:00
hist.h perf tools: Add 'cgroup_id' sort order keyword 2017-03-14 15:17:37 -03:00
intel-bts.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
intel-bts.h
intel-pt.c perf memswap: Split the byteswap memory range wrappers from util.[ch] 2017-04-25 15:45:35 -03:00
intel-pt.h perf intel-pt: Record address filter in AUXTRACE_INFO event 2016-09-29 11:17:05 -03:00
intlist.c
intlist.h perf intlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:39:19 -03:00
jit.h
jitdump.c perf str{filter,list}: Disentangle headers 2017-04-19 13:01:52 -03:00
jitdump.h perf jit: Add unwinding support 2016-10-24 11:07:39 -03:00
kvm-stat.h
levenshtein.c perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
levenshtein.h
llvm-utils.c perf tools: Remove poll.h and wait.h from util.h 2017-04-24 13:43:34 -03:00
llvm-utils.h perf llvm: Extract helpers in llvm-utils.c 2016-12-05 15:51:42 -03:00
lzma.c perf tools: Add compress.h for the *_decompress_to_file() headers 2017-04-24 12:33:33 -03:00
machine.c perf machine: Fix segfault for kernel.kptr_restrict=2 2017-06-26 11:52:37 -03:00
machine.h perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
map.c perf symbols: Allow user probes on versioned symbols 2017-05-02 18:23:11 -03:00
map.h perf symbols: Allow user probes on versioned symbols 2017-05-02 18:23:11 -03:00
mem-events.c perf mem: Fix display of data source snoop indication 2017-04-24 12:33:32 -03:00
mem-events.h perf c2c report: Add struct c2c_stats::tot_hitm field 2016-11-23 10:44:05 -03:00
memswap.c perf memswap: Split the byteswap memory range wrappers from util.[ch] 2017-04-25 15:45:35 -03:00
memswap.h perf memswap: Split the byteswap memory range wrappers from util.[ch] 2017-04-25 15:45:35 -03:00
namespaces.c perf tools: Remove string.h from util.h 2017-04-24 13:43:32 -03:00
namespaces.h perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
ordered-events.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
ordered-events.h
parse-branch-options.c perf tools: Add missing object file to the python binding linkage list 2016-10-28 11:29:45 -02:00
parse-branch-options.h perf tools: Implement branch_type event parameter 2016-10-24 11:07:35 -03:00
parse-events.c perf tools: Remove sys/ioctl.h from util.h 2017-04-24 13:43:32 -03:00
parse-events.h perf list: Move extra details printing to new option 2017-03-23 11:42:31 -03:00
parse-events.l perf jevents: Handle events including .c and .o 2016-10-17 11:24:18 -03:00
parse-events.y perf pmu: Special case uncore_ prefix 2017-03-21 16:10:59 -03:00
parse-regs-options.c
parse-regs-options.h
path.c perf tools: Move path related functions to util/path.h 2017-04-19 13:01:53 -03:00
path.h perf tools: Move path related functions to util/path.h 2017-04-19 13:01:53 -03:00
perf_regs.c perf/sdt/x86: Move OP parser to tools/perf/arch/x86/ 2017-03-28 12:25:30 -03:00
perf_regs.h perf/sdt/x86: Move OP parser to tools/perf/arch/x86/ 2017-03-28 12:25:30 -03:00
perf-hooks-list.h perf tools: Introduce perf hooks 2016-11-29 12:13:27 -03:00
perf-hooks.c perf tools: Add include <linux/kernel.h> where ARRAY_SIZE() is used 2017-04-19 13:01:44 -03:00
perf-hooks.h perf tools: Pass context to perf hook functions 2016-12-05 15:51:42 -03:00
PERF-VERSION-GEN
pmu.c perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
pmu.h perf list: Move extra details printing to new option 2017-03-23 11:42:31 -03:00
pmu.l
pmu.y
print_binary.c perf tools: Move print_binary definitions to separate files 2017-04-19 13:01:50 -03:00
print_binary.h perf tools: Move print_binary definitions to separate files 2017-04-19 13:01:50 -03:00
probe-event.c perf probe: Fix probe definition for inlined functions 2017-06-22 16:08:09 -03:00
probe-event.h perf str{filter,list}: Disentangle headers 2017-04-19 13:01:52 -03:00
probe-file.c perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
probe-file.h perf str{filter,list}: Disentangle headers 2017-04-19 13:01:52 -03:00
probe-finder.c perf str{filter,list}: Disentangle headers 2017-04-19 13:01:52 -03:00
probe-finder.h perf tools: Move sane ctype stuff from util.h to sane_ctype.h 2017-04-19 13:01:48 -03:00
pstack.c
pstack.h
python-ext-sources perf tools: Move units conversion/formatting routines to separate object 2017-04-20 13:22:44 -03:00
python.c perf callchain: Move callchain specific routines from util.[ch] 2017-04-24 13:43:26 -03:00
quote.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
quote.h perf quote: Disentangle headers 2016-07-12 15:19:55 -03:00
rb_resort.h perf rb_resort: Rename for_each() macros to for_each_entry() 2016-06-23 11:35:07 -03:00
rblist.c
rblist.h
record.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
sane_ctype.h perf tools: Move sane ctype stuff from util.h to sane_ctype.h 2017-04-19 13:01:48 -03:00
session.c perf memswap: Split the byteswap memory range wrappers from util.[ch] 2017-04-25 15:45:35 -03:00
session.h perf tools: Use just forward declarations for struct thread where possible 2017-04-24 13:43:35 -03:00
setup.py perf python: Filter out -specs=/a/b/c from the python binding cc options 2017-02-17 10:31:13 -03:00
sort.c perf tools: Use just forward declarations for struct thread where possible 2017-04-24 13:43:35 -03:00
sort.h perf tools: Use just forward declarations for struct thread where possible 2017-04-24 13:43:35 -03:00
srcline.c perf report: Do not drop last inlined frame 2017-05-24 08:41:48 +02:00
srcline.h perf tools: Move srcline definitions to separate header 2017-04-19 13:01:50 -03:00
stat-shadow.c perf pmu: Add support for MetricName JSON attribute 2017-03-23 11:42:31 -03:00
stat.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
stat.h perf stat: Output JSON MetricExpr metric 2017-03-23 11:42:30 -03:00
strbuf.c tools lib string: Adopt prefixcmp() from perf and subcmd 2017-04-26 15:49:21 -03:00
strbuf.h perf tools: Experiment with cppcheck 2016-10-03 11:24:13 -03:00
strfilter.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
strfilter.h
string2.h perf tools: Move extra string util functions to util/string2.h 2017-04-19 13:01:51 -03:00
string.c perf tools: Move extra string util functions to util/string2.h 2017-04-19 13:01:51 -03:00
strlist.c perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
strlist.h perf tools: Rename strlist_for_each() macros to for_each_entry() 2016-06-23 11:35:01 -03:00
svghelper.c perf timechart: Use NSEC_PER_U?SEC 2016-08-23 15:37:33 -03:00
svghelper.h
symbol_fprintf.c perf symbols: No need to check if sym->name is NULL 2017-02-13 17:22:34 -03:00
symbol-elf.c perf symbols: Keep DSO->symtab_type after decompress 2017-06-08 15:39:26 -03:00
symbol-minimal.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
symbol.c perf symbols: Kill dso__build_id_is_kmod() 2017-06-08 15:39:34 -03:00
symbol.h perf symbols: Allow user probes on versioned symbols 2017-05-02 18:23:11 -03:00
syscalltbl.c
syscalltbl.h
target.c perf target: str_error_r() always returns the buffer it receives 2016-07-29 11:54:35 -03:00
target.h
term.c perf tools: Don't include terminal handling headers in util.h 2017-04-19 13:01:53 -03:00
term.h
thread_map.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
thread_map.h perf thread_map: Convert thread_map.refcnt from atomic_t to refcount_t 2017-03-03 19:07:16 -03:00
thread-stack.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
thread-stack.h perf script: Add callindent option 2016-06-23 17:04:26 -03:00
thread.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
thread.h perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
time-utils.c perf tools: Move timestamp routines from util.h to time-utils.h 2017-04-20 13:22:44 -03:00
time-utils.h perf tools: Move timestamp routines from util.h to time-utils.h 2017-04-20 13:22:44 -03:00
tool.h perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
top.c
top.h perf tools: Remove sys/ioctl.h from util.h 2017-04-24 13:43:32 -03:00
trace-event-info.c perf tools: Create for_each_event macro for tracepoints iteration 2017-01-31 16:20:08 -03:00
trace-event-parse.c perf tools: Move sane ctype stuff from util.h to sane_ctype.h 2017-04-19 13:01:48 -03:00
trace-event-read.c perf utils: Null terminate buf in read_ftrace_printk() 2017-03-27 15:37:35 -03:00
trace-event-scripting.c perf scripting: Don't die if scripting can't be setup, disable it 2016-10-28 11:29:44 -02:00
trace-event.c perf tools: Introduce trace_event__tp_format_id() 2016-07-12 16:14:52 -03:00
trace-event.h perf util: Save pid-cmdline mapping into tracing header 2017-01-26 11:42:59 -03:00
trigger.h perf tools: Introduce trigger class 2016-04-28 09:58:58 -03:00
tsc.c
tsc.h
units.c perf units: Move parse_tag_value() to units.[ch] 2017-04-26 15:40:31 -03:00
units.h perf units: Move parse_tag_value() to units.[ch] 2017-04-26 15:40:31 -03:00
unwind-libdw.c perf unwind: Report module before querying isactivation in dwfl unwind 2017-06-16 14:37:30 -03:00
unwind-libdw.h perf tools: Use just forward declarations for struct thread where possible 2017-04-24 13:43:35 -03:00
unwind-libunwind-local.c perf report: Fix off-by-one for non-activation frames 2017-05-24 08:41:48 +02:00
unwind-libunwind.c perf unwind: Do not fail due to missing unwind support 2017-07-04 11:43:58 -03:00
unwind.h perf unwind: Provide only forward declarations for pointer types 2017-04-20 13:22:43 -03:00
usage.c
util-cxx.h perf clang: Update test case to use real BPF script 2016-12-05 15:51:44 -03:00
util.c perf units: Move parse_tag_value() to units.[ch] 2017-04-26 15:40:31 -03:00
util.h tools lib string: Adopt prefixcmp() from perf and subcmd 2017-04-26 15:49:21 -03:00
values.c perf tools: Don't die on a print function 2017-04-04 12:11:07 -03:00
values.h perf tools: Use normal error reporting when processing PERF_RECORD_READ events 2016-10-24 11:07:44 -03:00
vdso.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
vdso.h
xyarray.c perf tools: Remove string.h from util.h 2017-04-24 13:43:32 -03:00
xyarray.h
zlib.c perf tools: Add compress.h for the *_decompress_to_file() headers 2017-04-24 12:33:33 -03:00