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linux/tools/perf/util
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Krister Johansen aa33b9b9a2 perf callchain: Reference count maps 
If dso__load_kcore frees all of the existing maps, but one has already
been attached to a callchain cursor node, then we can get a SIGSEGV in
any function that happens to try to use this invalid cursor.  Use the
existing map refcount mechanism to forestall cleanup of a map until the
cursor iterates past the node.

Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@kernel.org
Fixes: 84c2cafa28 ("perf tools: Reference count struct map")
Link: http://lkml.kernel.org/r/20170106062331.GB2707@templeofstupid.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-02 11:39:09 -03:00
..
c++
perf clang: Compile BPF script using builtin clang support
2016-12-05 15:51:45 -03:00
include
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intel-pt-decoder
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libunwind
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scripting-engines
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alias.c
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annotate.c
perf annotate: Don't throw error for zero length symbols
2016-12-20 12:00:32 -03:00
annotate.h
perf annotate: Fix jump target outside of function address range
2016-12-15 16:25:46 -03:00
auxtrace.c
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auxtrace.h
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block-range.c
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block-range.h
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bpf-loader.c
perf clang: Compile BPF script using builtin clang support
2016-12-05 15:51:45 -03:00
bpf-loader.h
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bpf-prologue.c
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bpf-prologue.h
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Build
perf clang: Add builtin clang support ant test case
2016-12-05 15:51:43 -03:00
build-id.c
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build-id.h
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cache.h
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call-path.c
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call-path.h
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callchain.c
perf callchain: Reference count maps
2017-02-02 11:39:09 -03:00
callchain.h
perf callchain: Reference count maps
2017-02-02 11:39:09 -03:00
cgroup.c
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cgroup.h
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cloexec.c
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cloexec.h
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color.c
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color.h
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comm.c
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comm.h
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config.c
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config.h
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counts.c
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counts.h
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cpumap.c
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cpumap.h
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cs-etm.h
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ctype.c
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data-convert-bt.c
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data-convert-bt.h
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data-convert.h
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data.c
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data.h
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db-export.c
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db-export.h
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debug.c
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debug.h
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demangle-java.c
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demangle-java.h
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demangle-rust.c
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demangle-rust.h
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drv_configs.c
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drv_configs.h
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dso.c
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dso.h
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dwarf-aux.c
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dwarf-aux.h
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dwarf-regs.c
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env.c
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env.h
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event.c
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event.h
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evlist.c
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evlist.h
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evsel_fprintf.c
perf script: Add option to stop printing callchain
2016-11-29 13:06:19 -03:00
evsel.c
perf evsel: Allow to ignore missing pid
2016-12-15 16:25:46 -03:00
evsel.h
perf evsel: Allow to ignore missing pid
2016-12-15 16:25:46 -03:00
find-vdso-map.c
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genelf_debug.c
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genelf.c
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genelf.h
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generate-cmdlist.sh
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group.h
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header.c
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header.h
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help-unknown-cmd.c
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help-unknown-cmd.h
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hist.c
perf callchain: Reference count maps
2017-02-02 11:39:09 -03:00
hist.h
perf diff: Fix -o/--order option behavior (again)
2017-02-02 11:39:09 -03:00
intel-bts.c
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intel-bts.h
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intel-pt.c
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intel-pt.h
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intlist.c
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intlist.h
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jit.h
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jitdump.c
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jitdump.h
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kvm-stat.h
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levenshtein.c
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levenshtein.h
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llvm-utils.c
perf llvm: Extract helpers in llvm-utils.c
2016-12-05 15:51:42 -03:00
llvm-utils.h
perf llvm: Extract helpers in llvm-utils.c
2016-12-05 15:51:42 -03:00
lzma.c
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machine.c
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machine.h
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map.c
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map.h
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mem-events.c
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mem-events.h
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ordered-events.c
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ordered-events.h
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parse-branch-options.c
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parse-branch-options.h
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parse-events.c
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parse-events.h
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parse-events.l
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parse-events.y
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parse-regs-options.c
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parse-regs-options.h
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path.c
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perf_regs.c
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perf_regs.h
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perf-hooks-list.h
perf tools: Introduce perf hooks
2016-11-29 12:13:27 -03:00
perf-hooks.c
perf tools: Pass context to perf hook functions
2016-12-05 15:51:42 -03:00
perf-hooks.h
perf tools: Pass context to perf hook functions
2016-12-05 15:51:42 -03:00
PERF-VERSION-GEN
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pmu.c
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pmu.h
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pmu.l
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pmu.y
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probe-event.c
perf probe: Fix to probe on gcc generated functions in modules
2017-01-16 15:43:04 -03:00
probe-event.h
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probe-file.c
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probe-file.h
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probe-finder.c
perf probe: Fix to probe on gcc generated functions in modules
2017-01-16 15:43:04 -03:00
probe-finder.h
perf probe: Fix to probe on gcc generated functions in modules
2017-01-16 15:43:04 -03:00
pstack.c
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pstack.h
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python-ext-sources
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python.c
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quote.c
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quote.h
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rb_resort.h
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rblist.c
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rblist.h
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record.c
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session.c
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session.h
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setup.py
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sort.c
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sort.h
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srcline.c
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stat-shadow.c
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stat.c
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stat.h
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strbuf.c
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strbuf.h
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strfilter.c
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strfilter.h
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string.c
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strlist.c
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strlist.h
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svghelper.c
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svghelper.h
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symbol_fprintf.c
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symbol-elf.c
perf symbols: Robustify reading of build-id from sysfs
2017-01-03 16:11:13 -03:00
symbol-minimal.c
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symbol.c
perf diff: Do not overwrite valid build id
2016-12-20 12:00:38 -03:00
symbol.h
perf script: Add option to stop printing callchain
2016-11-29 13:06:19 -03:00
syscalltbl.c
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syscalltbl.h
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target.c
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target.h
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term.c
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term.h
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thread_map.c
perf thread_map: Add thread_map__remove function
2016-12-15 16:25:45 -03:00
thread_map.h
perf thread_map: Add thread_map__remove function
2016-12-15 16:25:45 -03:00
thread-stack.c
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thread-stack.h
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thread.c
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thread.h
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time-utils.c
perf tools: Move parse_nsec_time to time-utils.c
2016-12-01 13:02:39 -03:00
time-utils.h
perf tools: Move parse_nsec_time to time-utils.c
2016-12-01 13:02:39 -03:00
tool.h
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top.c
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top.h
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trace-event-info.c
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trace-event-parse.c
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trace-event-read.c
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trace-event-scripting.c
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trace-event.c
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trace-event.h
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trigger.h
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tsc.c
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tsc.h
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unwind-libdw.c
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unwind-libdw.h
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unwind-libunwind-local.c
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unwind-libunwind.c
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unwind.h
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usage.c
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util-cxx.h
perf clang: Update test case to use real BPF script
2016-12-05 15:51:44 -03:00
util.c
perf tools: Move parse_nsec_time to time-utils.c
2016-12-01 13:02:39 -03:00
util.h
perf tools: Move parse_nsec_time to time-utils.c
2016-12-01 13:02:39 -03:00
values.c
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values.h
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vdso.c
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vdso.h
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xyarray.c
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xyarray.h
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zlib.c
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