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 <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Fixes: 84c2cafa28 ("perf tools: Reference count struct map")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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

…

bpf-prologue.h

…

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

…

comm.c

…

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

…

counts.h

…

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

…

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

…

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 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

…

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 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

…

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

…

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

…

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

…

parse-regs-options.h

…

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-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

…

pstack.h

…

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

…

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

…

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

…

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

…

term.h

…

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

…

trace-event-parse.c

…

trace-event-read.c

…

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

…

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

…

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

…

xyarray.c

…

xyarray.h

…

zlib.c

…