linux-toradex.git/tools/perf/util/auxtrace.h, branch v7.1

perf auxtrace: Include sys/types.h for pid_t

2025-12-03T19:01:05+00:00

In 754187ad73b73bcb ("perf build: Remove NO_AUXTRACE build option")
sys/types.h was removed, which broke the build in all Alpine Linux
releases, as musl libc has pid_t defined via sys/types.h, add it back.

Fixes: 754187ad73b73bcb ("perf build: Remove NO_AUXTRACE build option")
Signed-off-by: Arnaldo Carvalho de Melo 
Reviewed-by: Ian Rogers 
Signed-off-by: Namhyung Kim

perf auxtrace: Remove errno.h from auxtrace.h and fix transitive dependencies

2025-11-14T07:03:11+00:00

errno.h isn't used in auxtrace.h so remove it and fix build failures
caused by transitive dependencies through auxtrace.h on errno.h.

Signed-off-by: Ian Rogers 
Reviewed-by: James Clark 
Signed-off-by: Namhyung Kim

perf build: Remove NO_AUXTRACE build option

2025-11-14T07:03:11+00:00

The NO_AUXTRACE build option was used when the __get_cpuid feature
test failed or if it was provided on the command line. The option no
longer avoids a dependency on a library and so having the option is
just adding complexity to the code base. Remove the option
CONFIG_AUXTRACE from Build files and HAVE_AUXTRACE_SUPPORT by assuming
it is always defined.

Signed-off-by: Ian Rogers 
Reviewed-by: James Clark 
Signed-off-by: Namhyung Kim

perf tool: Add the perf_tool argument to all callbacks

2025-11-07T21:25:05+00:00

Getting context for what a tool is doing, such as the perf_inject
instance, using container_of the tool is a common pattern in the
code. This isn't possible event_op2, event_op3 and event_op4 callbacks
as the tool isn't passed. Add the argument and then fix function
signatures to match. As tools maybe reading a tool from somewhere
else, change that code to use the passed in tool.

Signed-off-by: Ian Rogers 
Signed-off-by: Namhyung Kim

perf auxtrace: Add auxtrace_synth_id_range_start() helper

2025-10-26T00:44:57+00:00

To avoid hardcoding the offset value for synthetic event IDs
in multiple auxtrace modules (arm-spe, cs-etm, intel-pt, etc.),
and to improve code reusability, this patch unifies
the handling of the ID offset via a dedicated helper function.

Signed-off-by: tanze 
Reviewed-by: Adrian Hunter 
Tested-by: Leo Yan 
Signed-off-by: Namhyung Kim

perf powerpc: Add basic CONFIG_AUXTRACE support for VPA pmu on powerpc

2025-10-01T14:22:04+00:00

The powerpc PMU collecting Dispatch Trace Log (DTL) entries makes use of
AUX support in perf infrastructure.

The PMU driver has the functionality to collect trace entries in the aux
buffer.

On the tools side, this data is made available as PERF_RECORD_AUXTRACE
records.

This record is generated by "perf record" command.

To enable the creation of PERF_RECORD_AUXTRACE, add functions to
initialize auxtrace records ie "auxtrace_record__init()".

Fill in fields for other callbacks like info_priv_size, info_fill, free,
recording options etc.

Define auxtrace_type as PERF_AUXTRACE_VPA_DTL.  Add header file to
define vpa dtl pmu specific details.

Reviewed-by: Adrian Hunter 
Signed-off-by: Athira Rajeev 
Tested-by: Tejas Manhas 
Tested-by: Venkat Rao Bagalkote 
Cc: Aboorva Devarajan 
Cc: Aditya Bodkhe 
Cc: Hari Bathini 
Cc: Ian Rogers 
Cc: Jiri Olsa 
Cc: Madhavan Srinivasan 
Cc: Namhyung Kim 
Cc: Shrikanth Hegde 
Signed-off-by: Arnaldo Carvalho de Melo

perf auxtrace: Pass perf_env from session through to mmap read

2025-07-25T17:37:58+00:00

 auxtrace_mmap__read and auxtrace_mmap__read_snapshot end up calling
 `evsel__env(NULL)` which returns the global perf_env variable for the
 host. Their only call is in perf record. Rather than use the global
 variable pass through the perf_env for `perf record`.

Signed-off-by: Ian Rogers 
Link: https://lore.kernel.org/r/20250724163302.596743-18-irogers@google.com
Signed-off-by: Namhyung Kim

perf tools: Parse aux-action

2024-12-18T19:24:32+00:00

Add parsing for aux-action to accept "pause", "resume" or "start-paused"
values.

"start-paused" is valid only for AUX area events.

"pause" and "resume" are valid only for events grouped with an AUX area
event as the group leader.  However, like with aux-output, the events
will be automatically grouped if they are not currently in a group, and
the AUX area event precedes the other events.

Reviewed-by: Andi Kleen 
Signed-off-by: Adrian Hunter 
Acked-by: Ian Rogers 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Leo Yan 
Cc: Namhyung Kim 
Link: https://lore.kernel.org/r/20241216070244.14450-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf arm-spe: Update --itrace help text

2024-10-29T23:10:17+00:00

The --itrace help now needs updating to reflect that
the --itrace=b argument sythesises branches as well
as branch misses.

Signed-off-by: Graham Woodward 
Reviewed-by: James Clark 
Tested-by: Leo Yan 
Cc: nd@arm.com
Cc: mike.leach@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20241025143009.25419-5-graham.woodward@arm.com
Signed-off-by: Namhyung Kim

perf auxtrace: Remove unused 'pmu' pointer from struct auxtrace_record

2024-08-28T21:15:16+00:00

The 'pmu' pointer in the auxtrace_record structure is not used after
support multiple AUX events, remove it.

Reviewed-by: Adrian Hunter 
Signed-off-by: Leo Yan 
Cc: Ian Rogers 
Cc: James Clark 
Cc: Kan Liang 
Cc: Mike Leach 
Cc: Namhyung Kim 
Cc: Suzuki Poulouse 
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240806204130.720977-3-leo.yan@arm.com
Signed-off-by: Arnaldo Carvalho de Melo