linux/tools
Tianyou Li 262c61435c perf annotate: fix a crash when annotate the same symbol with 's' and 'T'
When perf report with annotation for a symbol, press 's' and 'T', then exit
the annotate browser. Once annotate the same symbol, the annotate browser
will crash.

The browser.arch was required to be correctly updated when data type
feature was enabled by 'T'. Usually it was initialized by symbol__annotate2
function. If a symbol has already been correctly annotated at the first
time, it should not call the symbol__annotate2 function again, thus the
browser.arch will not get initialized. Then at the second time to show the
annotate browser, the data type needs to be displayed but the browser.arch
is empty.

Stack trace as below:

Perf: Segmentation fault
-------- backtrace --------
    #0 0x55d365 in ui__signal_backtrace setup.c:0
    #1 0x7f5ff1a3e930 in __restore_rt libc.so.6[3e930]
    #2 0x570f08 in arch__is perf[570f08]
    #3 0x562186 in annotate_get_insn_location perf[562186]
    #4 0x562626 in __hist_entry__get_data_type annotate.c:0
    #5 0x56476d in annotation_line__write perf[56476d]
    #6 0x54e2db in annotate_browser__write annotate.c:0
    #7 0x54d061 in ui_browser__list_head_refresh perf[54d061]
    #8 0x54dc9e in annotate_browser__refresh annotate.c:0
    #9 0x54c03d in __ui_browser__refresh browser.c:0
    #10 0x54ccf8 in ui_browser__run perf[54ccf8]
    #11 0x54eb92 in __hist_entry__tui_annotate perf[54eb92]
    #12 0x552293 in do_annotate hists.c:0
    #13 0x55941c in evsel__hists_browse hists.c:0
    #14 0x55b00f in evlist__tui_browse_hists perf[55b00f]
    #15 0x42ff02 in cmd_report perf[42ff02]
    #16 0x494008 in run_builtin perf.c:0
    #17 0x494305 in handle_internal_command perf.c:0
    #18 0x410547 in main perf[410547]
    #19 0x7f5ff1a295d0 in __libc_start_call_main libc.so.6[295d0]
    #20 0x7f5ff1a29680 in __libc_start_main@@GLIBC_2.34 libc.so.6[29680]
    #21 0x410b75 in _start perf[410b75]

Fixes: 1d4374afd0 ("perf annotate: Add 'T' hot key to toggle data type display")
Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tianyou Li <tianyou.li@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-10-21 05:42:01 -07:00
..
accounting tools/delaytop: improve error handling for missing PSI support 2025-09-13 17:32:56 -07:00
arch - Simplify inline asm flag output operands now that the minimum compiler 2025-10-11 10:51:14 -07:00
bootconfig bootconfig: Fix negative seeks on 32-bit with LFS enabled 2025-08-21 08:16:31 +09:00
bpf bpftool: Remove duplicate string.h header 2025-09-27 04:23:15 -07:00
build perf build: Correct CROSS_ARCH for clang 2025-10-06 16:49:25 -03:00
certs
cgroup
counter
crypto
debugging
docs docs: add tools/docs/gen-redirects.py 2025-09-09 13:37:16 -06:00
firewire
firmware
gpio tools: gpio: remove the include directory on make clean 2025-09-04 16:29:28 +02:00
hv
iio iio: add power and energy measurement modifiers 2025-09-13 13:47:19 +01:00
include - Remove a bunch of asm implementing condition flags testing in KVM's 2025-10-11 11:19:16 -07:00
kvm/kvm_stat
laptop
leds
lib bpf-fixes 2025-10-11 10:31:38 -07:00
memory-model
mm tools/mm/slabinfo: fix access to null terminator in string boundary 2025-09-21 14:22:00 -07:00
net NFSD 6.18 Release Notes 2025-10-06 13:22:21 -07:00
objtool - Remove a bunch of asm implementing condition flags testing in KVM's 2025-10-11 11:19:16 -07:00
pcmcia
perf perf annotate: fix a crash when annotate the same symbol with 's' and 'T' 2025-10-21 05:42:01 -07:00
power Kbuild updates for 6.18 2025-10-01 20:58:51 -07:00
rcu
sched
sched_ext tools/sched_ext: scx_qmap: Make debug output quieter by default 2025-09-23 09:03:26 -10:00
scripts tools headers: Sync syscall tables with the kernel source 2025-08-18 13:49:25 -07:00
sound
spi
testing bpf-fixes 2025-10-11 10:31:38 -07:00
thermal
time
tracing rtla: Updates for v6.18 2025-10-05 09:38:26 -07:00
usb tools/usb/usbip: fix spelling mistakes in usbipd.c 2025-09-06 15:22:14 +02:00
verification rv: Add opid per-cpu monitor 2025-07-28 16:47:35 -04:00
virtio kmsan: convert kmsan_handle_dma to use physical addresses 2025-09-12 00:18:20 +02:00
wmi
workqueue
writeback
Makefile