Namhyung Kim f4e3381648 perf tools: Minimal DEFERRED_CALLCHAIN support ... Add a new event type for deferred callchains and a new callback for the struct perf_tool. For now it doesn't actually handle the deferred callchains but it just marks the sample if it has the PERF_CONTEXT_ USER_DEFFERED in the callchain array. At least, perf report can dump the raw data with this change. Actually this requires the next commit to enable attr.defer_callchain, but if you already have a data file, it'll show the following result. $ perf report -D ... 0x2158@perf.data [0x40]: event: 22 . . ... raw event: size 64 bytes . 0000: 16 00 00 00 02 00 40 00 06 00 00 00 0b 00 00 00 ......@......... . 0010: 03 00 00 00 00 00 00 00 a7 7f 33 fe 18 7f 00 00 ..........3..... . 0020: 0f 0e 33 fe 18 7f 00 00 48 14 33 fe 18 7f 00 00 ..3.....H.3..... . 0030: 08 09 00 00 08 09 00 00 e6 7a e7 35 1c 00 00 00 .........z.5.... 121163447014 0x2158 [0x40]: PERF_RECORD_CALLCHAIN_DEFERRED(IP, 0x2): 2312/2312: 0xb00000006 ... FP chain: nr:3 ..... 0: 00007f18fe337fa7 ..... 1: 00007f18fe330e0f ..... 2: 00007f18fe331448 : unhandled! Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>		2025-12-02 16:13:32 -08:00
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Documentation	perf record: Add 8-byte aligned event type PERF_RECORD_COMPRESSED2	2025-05-16 17:31:40 -03:00
include	perf tools: Minimal DEFERRED_CALLCHAIN support	2025-12-02 16:13:32 -08:00
tests	libperf cpumap: Replace usage of perf_cpu_map__new(NULL) with perf_cpu_map__new_online_cpus()	2023-12-12 14:55:13 -03:00
.gitignore	libperf: Add gitignore	2024-08-01 12:11:33 -03:00
Build	libperf: Change tests to single static and shared binaries	2021-07-07 11:41:58 -03:00
core.c
cpumap.c	libperf cpumap: Reduce allocations and sorting in intersect	2025-11-17 18:43:08 -08:00
evlist.c	perf parse-events: Support user CPUs mixed with threads/processes	2025-07-24 13:41:35 -07:00
evsel.c	libperf evsel: Factor perf_evsel__exit out of perf_evsel__delete	2025-07-24 13:41:35 -07:00
internal.h
lib.c	libperf: Add preadn()	2022-05-23 10:11:12 -03:00
libperf.map	libperf cpumap: Remove perf_cpu_map__read()	2024-12-09 17:52:41 -03:00
libperf.pc.template
Makefile	perf tools: Fix in-source libperf build	2025-04-29 12:32:31 -07:00
mmap.c	libperf mmap: In user mmap rdpmc avoid undefined behavior	2025-10-02 15:02:47 -03:00
threadmap.c	libperf threadmap: Add perf_thread_map__idx()	2025-05-21 15:07:13 -03:00
xyarray.c