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Zheng Zengkai 9f7b591e0b perf record: Fix memory leak when using '--user-regs=?' to list registers 
[ Upstream commit 2eb5dd418034ecea2f7031e3d33f2991a878b148 ]

When using 'perf record's option '-I' or '--user-regs=' along with
argument '?' to list available register names, memory of variable 'os'
allocated by strdup() needs to be released before __parse_regs()
returns, otherwise memory leak will occur.

Fixes: bcc84ec65ad1 ("perf record: Add ability to name registers to record")
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Li Bin <huawei.libin@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20200703093344.189450-1-zhengzengkai@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-29 13:45:01 +01:00
..
include
perf probe: Support probing on offline cross-arch binary
2016-09-01 12:41:09 -03:00
intel-pt-decoder
perf intel-pt: Fix sample timestamp wrt non-taken branches
2019-05-25 18:26:50 +02:00
libunwind
perf unwind: Fix wrongly used regs for aarch64 unwind
2016-06-23 10:30:31 -03:00
scripting-engines
perf scripting perl: Fix compile error with some perl5 versions
2017-07-15 12:16:14 +02:00
alias.c
perf tools: Remove needless includes from cache.h
2016-07-12 15:19:58 -03:00
annotate.c
perf annotate: Use asprintf when formatting objdump command line
2020-07-31 16:44:07 +02:00
annotate.h
perf annotate: Pass the symbol's map/dso to the instruction parsers
2016-09-20 12:28:29 -03:00
auxtrace.c
perf auxtrace: Define auxtrace record alignment
2019-03-23 13:19:53 +01:00
auxtrace.h
perf auxtrace: Define auxtrace record alignment
2019-03-23 13:19:53 +01:00
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 bpf: Fix typo: "ehough" -> "enough"
2016-08-23 17:06:39 -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 jit: Enable jitdump support without dwarf
2017-01-26 08:24:36 +01:00
build-id.c
perf build-id: Fix memory leak in print_sdt_events()
2019-04-20 09:07:48 +02:00
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
2017-03-12 06:41:47 +01:00
callchain.h
perf callchain: Reference count maps
2017-03-12 06:41:47 +01:00
cgroup.c
perf tools: Fix snprint warnings for gcc 8
2020-07-31 16:44:07 +02:00
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: Fix a memory leak in collect_config()
2019-04-20 09:07:48 +02:00
config.h
perf config: Introduce new init() and exit()
2016-06-23 17:20:04 -03:00
counts.c
…
counts.h
…
cpumap.c
perf tools: Handle TOPOLOGY headers with no CPU
2019-03-13 14:04:55 -07:00
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 'strncat may truncate' build failure with recent gcc
2019-06-22 08:17:23 +02:00
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: Fix debuginfo search for Ubuntu
2020-06-20 10:24:22 +02:00
dso.h
perf symbols: Fix debuginfo search for Ubuntu
2020-06-20 10:24:22 +02:00
dwarf-aux.c
perf probe: Fix to die_entrypc() returns error correctly
2020-12-02 08:31:28 +01:00
dwarf-aux.h
perf probe: Fix to show function entry line as probe-able
2020-01-04 13:40:28 +01:00
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 event: Check ref_reloc_sym before using it
2020-12-02 08:31:24 +01:00
event.h
Revert "perf tools: event.h needs asm/perf_regs.h"
2016-07-25 11:58:56 -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: Fix vanished idle symbols
2016-09-29 11:17:00 -03:00
evsel.c
perf evsel: Make perf_evsel__name() accept a NULL argument
2019-08-04 09:33:20 +02:00
evsel.h
perf evsel: Add support for address filters
2016-09-29 11:16:59 -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: Enable jitdump support without dwarf
2017-01-26 08:24:36 +01:00
genelf.h
perf jit: Enable jitdump support without dwarf
2017-01-26 08:24:36 +01:00
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 tools: Fix segfault in cpu_cache_level__read()
2019-10-17 13:42:15 -07:00
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 tools: Fix time sorting
2019-11-12 19:15:43 +01:00
hist.h
perf hists: Fix variable name's inconsistency in hists__for_each() macro
2020-01-23 08:19:40 +01:00
intel-bts.c
perf symbols: Remove symbol_filter_t machinery
2016-09-05 11:14:50 -03:00
intel-bts.h
…
intel-pt.c
perf intel-pt: Fix "context_switch event has no tid" error
2020-10-29 09:05:38 +01:00
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 inject jit: Fix JIT_CODE_MOVE filename
2019-10-17 13:42:43 -07:00
jitdump.h
perf jit: Add support for using TSC as a timestamp
2016-04-01 18:42:55 -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: Don't access out-of-scope array
2019-10-17 13:42:42 -07:00
llvm-utils.h
perf llvm: Allow dump llvm output object file using llvm.dump-obj
2016-06-21 13:18:34 -03:00
lzma.c
perf tools: Fix error handling of lzma decompression
2016-08-24 11:20:58 -03:00
machine.c
perf record: Fix module size on s390
2019-08-25 10:51:21 +02:00
machine.h
perf record: Fix module size on s390
2019-08-25 10:51:21 +02:00
map.c
perf map: Fix off by one in strncpy() size argument
2020-04-02 17:20:41 +02:00
map.h
perf symbols: Remove symbol_filter_t machinery
2016-09-05 11:14:50 -03:00
mem-events.c
perf mem: Add --ldlat option
2016-06-15 10:35:27 -03:00
mem-events.h
perf mem: Add --ldlat option
2016-06-15 10:35:27 -03:00
ordered-events.c
perf inject: Copy events when reordering events in pipe mode
2018-03-22 09:17:51 +01:00
ordered-events.h
perf ordered_events: Introduce reinit()
2016-04-14 08:57:54 -03:00
parse-branch-options.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
parse-branch-options.h
…
parse-events.c
perf tools: Fix snprint warnings for gcc 8
2020-07-31 16:44:07 +02:00
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: Fix pmu events parsing rule
2018-08-03 07:55:13 +02:00
parse-regs-options.c
perf record: Fix memory leak when using '--user-regs=?' to list registers
2020-12-29 13:45:01 +01:00
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 regs: Make perf_reg_name() return "unknown" instead of NULL
2020-01-04 13:41:02 +01:00
PERF-VERSION-GEN
…
pmu.c
perf test: Free formats for perf pmu parse test
2020-09-23 08:46:15 +02:00
pmu.h
perf test: Free formats for perf pmu parse test
2020-09-23 08:46:15 +02:00
pmu.l
…
pmu.y
…
probe-event.c
perf probe: Fix to check blacklist address correctly
2020-07-31 16:44:07 +02:00
probe-event.h
perf probe: Add helper function to check if probe with variable
2016-09-01 12:42:25 -03:00
probe-file.c
perf probe: Fix unchecked usage of strncpy()
2019-02-12 19:44:55 +01:00
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 memory leakage when the probe point is not found
2020-08-26 10:29:03 +02:00
probe-finder.h
perf probe: Fix to probe on gcc generated functions in modules
2017-07-05 14:40:27 +02:00
pstack.c
…
pstack.h
…
python-ext-sources
tools lib api: Add str_error_c to libapi
2016-07-27 17:16:43 -03:00
python.c
perf tools: Make is_printable_array global
2016-07-18 19:49:47 -03:00
quote.c
perf quote: Disentangle headers
2016-07-12 15:19:55 -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 tools: Add missing swap for ino_generation
2020-11-18 18:26:23 +01:00
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 util: Fix memory leak of prefix_if_not_in
2020-10-01 20:40:14 +02:00
sort.h
perf tools: Make several sorting functions global
2016-09-22 13:08:57 -03:00
srcline.c
perf: Make perf able to build with latest libbfd
2020-07-31 16:44:07 +02:00
stat-shadow.c
perf stat: Add computation of TopDown formulas
2016-06-06 17:04:16 -03:00
stat.c
perf stat: Zero all the 'ena' and 'run' array slot stats for interval mode
2020-07-22 09:10:51 +02:00
stat.h
perf stat: Reset previous counts on repeat with interval
2019-10-17 13:42:17 -07:00
strbuf.c
perf strbuf: Remove redundant va_end() in strbuf_addv()
2020-01-04 13:41:05 +01:00
strbuf.h
perf tools: Experiment with cppcheck
2016-10-03 11:24:13 -03:00
strfilter.c
tools strfilter: Use __fallthrough
2017-07-15 12:16:12 +02:00
strfilter.h
…
string.c
tools string: Use __fallthrough in perf_atoll()
2017-07-15 12:16:12 +02:00
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 svghelper: Fix unchecked usage of strncpy()
2019-01-26 09:38:34 +01:00
svghelper.h
perf tools: Remove needless 'extern' from function prototypes
2016-03-23 15:06:35 -03:00
symbol_fprintf.c
perf symbols: Move fprintf routines to separate object file
2016-04-14 19:46:53 -03:00
symbol-elf.c
perf kcore_copy: Fix module map when there are no modules loaded
2020-10-01 20:40:14 +02:00
symbol-minimal.c
perf symbols: Remove symbol_filter_t machinery
2016-09-05 11:14:50 -03:00
symbol.c
perf symbols: Fix debuginfo search for Ubuntu
2020-06-20 10:24:22 +02:00
symbol.h
perf record: Fix wrong size in perf_record_mmap for last kernel module
2019-08-25 10:51:20 +02:00
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: Correctly size buffer used with dirent->dt_name
2017-07-15 12:16:13 +02:00
thread_map.h
perf thread_map: Make new_by_tid_str constructor public
2016-04-13 10:11:51 -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 db-export: Fix thread__exec_comm()
2019-08-25 10:51:20 +02:00
thread.h
perf unwind: Move unwind__prepare_access from thread_new into thread__insert_map
2016-06-07 12:08:52 -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
perf tools: Cleanup trace-event-info 'tdata' leak
2018-11-13 11:16:49 -08:00
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: Free temporary 'sys' string in read_event_files()
2018-11-13 11:16:49 -08:00
trace-event-scripting.c
perf scripting: Avoid leaking the scripting_context variable
2017-01-26 08:24:36 +01:00
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: Fix trigger class trigger_on()
2018-03-18 11:18:50 +01:00
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 report: Include partial stacks unwound with libdw
2019-02-20 10:18:30 +01:00
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 report: Fix off-by-one for non-activation frames
2018-04-13 19:48:05 +02:00
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.c
perf tools: Fix copyfile_offset update of output offset
2018-04-13 19:48:31 +02:00
util.h
perf tools: No need to include bitops.h in util.h
2019-05-31 06:48:13 -07:00
values.c
…
values.h
…
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
…