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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
perf probe: Support probing on offline cross-arch binary
2016-09-01 12:41:09 -03:00
intel-pt-decoder
perf intel-pt/bts: Report instruction bytes and length in sample
2016-10-24 10:31:32 -03:00
libunwind
perf unwind: Fix wrongly used regs for aarch64 unwind
2016-06-23 10:30:31 -03:00
scripting-engines
tools: Introduce tools/include/linux/time64.h for *SEC_PER_*SEC macros
2016-08-23 15:37:33 -03:00
alias.c
perf tools: Remove needless includes from cache.h
2016-07-12 15:19:58 -03:00
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
perf record: Add support for using symbols in address filters
2016-09-29 11:17:02 -03:00
auxtrace.h
perf record: Add support for using symbols in address filters
2016-09-29 11:17:02 -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 clang: Compile BPF script using builtin clang support
2016-12-05 15:51:45 -03:00
bpf-loader.h
perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()
2016-07-13 23:09:03 -03:00
bpf-prologue.c
perf bpf: Add prologue for BPF programs for fetching arguments
2015-11-18 17:51:04 -03:00
bpf-prologue.h
perf bpf: Add prologue for BPF programs for fetching arguments
2015-11-18 17:51:04 -03:00
Build
perf clang: Add builtin clang support ant test case
2016-12-05 15:51:43 -03:00
build-id.c
perf probe: Increase debug level of SDT debug messages
2016-09-29 11:17:02 -03:00
build-id.h
perf probe: Support @BUILDID or @FILE suffix for SDT events
2016-07-13 23:09:08 -03:00
cache.h
perf tools: Remove needless includes from cache.h
2016-07-12 15:19:58 -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 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
perf evlist: Rename for_each() macros to for_each_entry()
2016-06-23 11:26:15 -03:00
cgroup.h
perf tools: Remove needless 'extern' from function prototypes
2016-03-23 15:06:35 -03:00
cloexec.c
perf tools: Introduce weak alternative to sched_getcpu()
2016-07-12 15:20:34 -03:00
cloexec.h
perf tools: Remove needless 'extern' from function prototypes
2016-03-23 15:06:35 -03:00
color.c
perf tools: Uninline scnprintf() and vscnprint()
2016-07-12 15:20:24 -03:00
color.h
perf tools: Remove trail argument to color vsprintf
2015-08-05 16:44:02 -03:00
comm.c
perf comm: Use atomic.h for refcounting
2015-05-27 12:21:43 -03:00
comm.h
…
config.c
perf config: Mark where are config items from (user or system)
2016-11-14 13:10:37 -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 stat: Move perf_counts struct and functions into separate object
2015-08-08 14:16:49 -03:00
counts.h
perf stat: Move perf_counts struct and functions into separate object
2015-08-08 14:16:49 -03:00
cpumap.c
perf cpu_map: Add more helpers
2016-07-18 19:42:47 -03:00
cpumap.h
perf cpu_map: Add more helpers
2016-07-18 19:42:47 -03:00
cs-etm.h
perf tools: Add coresight etm PMU record capabilities
2016-09-22 12:19:40 -03:00
ctype.c
perf ui/stdio: Align column header for hierarchy output
2016-02-24 20:21:12 -03:00
data-convert-bt.c
perf data: Fix building in 32 bit platform with libbabeltrace
2016-09-28 10:38:20 -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
tools: Introduce str_error_r()
2016-07-12 15:19:47 -03:00
data.h
perf data: Add perf_data_file__switch() helper
2016-04-14 08:57:54 -03:00
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
tools: Introduce tools/include/linux/time64.h for *SEC_PER_*SEC macros
2016-08-23 15:37:33 -03:00
debug.h
tools: Introduce str_error_r()
2016-07-12 15:19:47 -03:00
demangle-java.c
perf symbols: add Java demangling support
2016-02-05 09:46:45 -03:00
demangle-java.h
perf symbols: add Java demangling support
2016-02-05 09:46:45 -03:00
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 pmu: Push configuration down to PMU driver
2016-09-22 12:19:41 -03:00
drv_configs.h
perf pmu: Push configuration down to PMU driver
2016-09-22 12:19:41 -03:00
dso.c
perf symbols: Do not open device files
2016-09-20 16:20:21 -03:00
dso.h
perf tools: Uninline scnprintf() and vscnprint()
2016-07-12 15:20:24 -03:00
dwarf-aux.c
perf probe: Match linkage name with mangled name
2016-09-29 11:17:08 -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 probe: Support probing on offline cross-arch binary
2016-09-01 12:41:09 -03:00
env.c
perf header: Transform nodes string info to struct
2016-07-04 19:39:01 -03:00
env.h
perf header: Transform nodes string info to struct
2016-07-04 19:39:01 -03:00
event.c
perf tools: Fix MMAP event synthesis broken by MAP_HUGETLB change
2016-09-28 10:21:15 -03:00
event.h
perf intel-pt/bts: Report instruction bytes and length in sample
2016-10-24 10:31:32 -03:00
evlist.c
perf tools: Experiment with cppcheck
2016-10-03 11:24:13 -03:00
evlist.h
perf evlist: Make {pause,resume} internal helpers
2016-07-15 17:27:50 -03:00
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
…
genelf_debug.c
perf jit: add source line info support
2016-02-05 12:33:09 -03:00
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
perf tools: Do not show trace command if it's not compiled in
2016-01-08 12:46:17 -03:00
group.h
perf stat: Basic support for TopDown in perf stat
2016-06-06 17:04:15 -03:00
header.c
perf header: Display feature name on write failure
2016-10-24 11:07:34 -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: Uninline scnprintf() and vscnprint()
2016-07-12 15:20:24 -03:00
help-unknown-cmd.h
perf tools: Move help_unknown_cmd() to its own file
2015-12-14 12:30:37 -03:00
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
perf intel-pt/bts: Report instruction bytes and length in sample
2016-10-24 10:31:32 -03:00
intel-bts.h
perf tools: Add Intel BTS support
2015-08-21 11:34:10 -03:00
intel-pt.c
perf intel-pt/bts: Report instruction bytes and length in sample
2016-10-24 10:31:32 -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
perf tools: Remove needless 'extern' from function prototypes
2016-03-23 15:06:35 -03:00
jitdump.c
perf jit: Check JITHEADER_VERSION
2016-10-24 11:07:40 -03:00
jitdump.h
perf jit: Add unwinding support
2016-10-24 11:07:39 -03:00
kvm-stat.h
perf kvm/powerpc: Port perf kvm stat to powerpc
2016-01-29 17:49:54 -03:00
levenshtein.c
perf tools: Remove needless includes from cache.h
2016-07-12 15:19:58 -03:00
levenshtein.h
…
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
perf tools: Fix error handling of lzma decompression
2016-08-24 11:20:58 -03:00
machine.c
perf report: Add branch flag to callchain cursor node
2016-11-14 13:15:56 -03:00
machine.h
perf symbols: Remove symbol_filter_t machinery
2016-09-05 11:14:50 -03:00
map.c
perf hists browser: Dynamically change verbosity level
2016-10-24 11:07:42 -03:00
map.h
perf symbols: Remove symbol_filter_t machinery
2016-09-05 11:14:50 -03:00
mem-events.c
perf c2c report: Add struct c2c_stats::tot_hitm field
2016-11-23 10:44:05 -03:00
mem-events.h
perf c2c report: Add struct c2c_stats::tot_hitm field
2016-11-23 10:44:05 -03:00
ordered-events.c
perf ordered_events: Introduce reinit()
2016-04-14 08:57:54 -03:00
ordered-events.h
perf ordered_events: Introduce reinit()
2016-04-14 08:57:54 -03:00
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: Implement branch_type event parameter
2016-10-24 11:07:35 -03:00
parse-events.h
perf list: Support long jevents descriptions
2016-10-03 21:35:47 -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 tools: Add infrastructure for PMU specific configuration
2016-09-13 17:09:11 -03:00
parse-regs-options.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
parse-regs-options.h
perf record: Add ability to name registers to record
2015-08-31 18:01:33 -03:00
path.c
perf tools: Remove needless includes from cache.h
2016-07-12 15:19:58 -03:00
perf_regs.c
perf tools: Fix perf regs mask generation
2016-05-11 21:54:06 +10:00
perf_regs.h
perf tools: Fix build break on powerpc due to sample_reg_masks
2015-09-30 18:34:27 -03:00
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
…
pmu.c
perf list: Support matching by topic
2016-10-28 11:29:42 -02:00
pmu.h
perf list jevents: Add support for event list topics
2016-10-03 21:35:47 -03:00
pmu.l
…
pmu.y
…
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
perf tools: Add missing struct definition in probe_event.h
2016-11-25 11:25:46 -03:00
probe-file.c
perf probe: Increase debug level of SDT debug messages
2016-09-29 11:17:02 -03:00
probe-file.h
perf probe: Add supported for type casting by the running kernel
2016-08-23 17:03:31 -03:00
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
perf tools: Introduce pstack_peek()
2015-05-05 18:13:22 -03:00
pstack.h
perf tools: Introduce pstack_peek()
2015-05-05 18:13:22 -03:00
python-ext-sources
perf tools: Add missing object file to the python binding linkage list
2016-10-28 11:29:45 -02:00
python.c
perf tools: Make is_printable_array global
2016-07-18 19:49:47 -03:00
quote.c
perf tools: Normalize sq_quote_argv() error reporting
2016-10-24 11:07:44 -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 evlist: Rename for_each() macros to for_each_entry()
2016-06-23 11:26:15 -03:00
session.c
perf report: Move captured info to generic header info
2016-10-24 11:07:33 -03:00
session.h
perf evsel: Move some methods from session.[ch] to evsel.[ch]
2016-04-13 10:11:52 -03:00
setup.py
perf tools: Fix python extension build
2016-02-29 11:18:25 -03:00
sort.c
perf c2c report: Add src line sort key
2016-10-19 13:18:31 -03:00
sort.h
perf c2c report: Add src line sort key
2016-10-19 13:18:31 -03:00
srcline.c
perf tools: Always use non inlined file name for 'srcfile' sort key
2015-09-02 16:30:46 -03:00
stat-shadow.c
perf stat: Add computation of TopDown formulas
2016-06-06 17:04:16 -03:00
stat.c
perf evlist: Rename for_each() macros to for_each_entry()
2016-06-23 11:26:15 -03:00
stat.h
perf stat: Add computation of TopDown formulas
2016-06-06 17:04:16 -03:00
strbuf.c
perf strbuf: Add missing headers
2016-07-12 15:19:55 -03:00
strbuf.h
perf tools: Experiment with cppcheck
2016-10-03 11:24:13 -03:00
strfilter.c
…
strfilter.h
…
string.c
perf list: Make vendor event matching case insensitive
2016-10-24 11:07:46 -03:00
strlist.c
perf tools: Add file_only config option to strlist
2016-01-12 12:42:07 -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
perf tools: Remove needless 'extern' from function prototypes
2016-03-23 15:06:35 -03:00
symbol_fprintf.c
perf symbols: Print symbol offsets conditionally
2016-11-23 10:44:06 -03:00
symbol-elf.c
perf symbols: Robustify reading of build-id from sysfs
2017-01-03 16:11:13 -03:00
symbol-minimal.c
perf symbols: Remove symbol_filter_t machinery
2016-09-05 11:14:50 -03:00
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
perf tools: Build syscall table .c header from kernel's syscall_64.tbl
2016-04-08 09:58:14 -03:00
syscalltbl.h
perf tools: Allow generating per-arch syscall table arrays
2016-04-08 09:58:14 -03:00
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: Move term functions out of util.c
2015-12-09 13:42:02 -03:00
term.h
perf tools: Move term functions out of util.c
2015-12-09 13:42:02 -03:00
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
perf script: Add callindent option
2016-06-23 17:04:26 -03:00
thread-stack.h
perf script: Add callindent option
2016-06-23 17:04:26 -03:00
thread.c
perf tools: Experiment with cppcheck
2016-10-03 11:24:13 -03:00
thread.h
perf unwind: Move unwind__prepare_access from thread_new into thread__insert_map
2016-06-07 12:08:52 -03:00
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
perf tools: Add time conversion event
2016-03-31 10:52:24 -03:00
top.c
…
top.h
perf top: Use machine->kptr_restrict_warned
2016-05-20 11:43:55 -03:00
trace-event-info.c
tools lib api fs: Move tracing_path interface into api/fs/tracing_path.c
2015-09-04 12:00:45 -03:00
trace-event-parse.c
irq_poll: make blk-iopoll available outside the block layer
2015-12-11 11:52:24 -08:00
trace-event-read.c
perf tools: Stop reading the kallsyms data from perf.data
2015-07-23 22:51:11 -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 tools: Introduce trace_event__tp_format_id()
2016-07-12 16:14:52 -03:00
trigger.h
perf tools: Introduce trigger class
2016-04-28 09:58:58 -03:00
tsc.c
perf tools: Use 64-bit shifts with (TSC) time conversion
2016-03-08 10:11:18 +01:00
tsc.h
perf jit: Add support for using TSC as a timestamp
2016-04-01 18:42:55 -03:00
unwind-libdw.c
perf unwind: Use addr_location::addr instead of ip for entries
2016-08-16 15:23:29 -03:00
unwind-libdw.h
perf callchain: Add order support for libdw DWARF unwinder
2015-11-23 18:31:13 -03:00
unwind-libunwind-local.c
perf jit: Do not assume pgoff is zero
2016-10-24 11:07:39 -03:00
unwind-libunwind.c
perf unwind: Add initialized arg into unwind__prepare_access
2016-07-04 20:27:12 -03:00
unwind.h
perf unwind: Add initialized arg into unwind__prepare_access
2016-07-04 20:27:12 -03:00
usage.c
perf tools: Simplify die() mechanism
2016-03-23 12:32:31 -03:00
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
perf tools: Use normal error reporting when processing PERF_RECORD_READ events
2016-10-24 11:07:44 -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: Find right DSO taking into account if binary is 32 or 64-bit
2016-06-23 10:25:58 -03:00
vdso.h
perf machine: Fix up vdso methods names
2015-05-29 12:43:44 -03:00
xyarray.c
perf tools: Introduce xyarray__reset function
2015-06-16 10:34:39 -03:00
xyarray.h
perf tools: Introduce xyarray__reset function
2015-06-16 10:34:39 -03:00
zlib.c
…