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perf scripting python: Add function to get a config value

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This can be used to get config values like which objdump Perf uses for
disassembly.

Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Tested-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Ruidong Tian <tianruidong@linux.alibaba.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: coresight@lists.linaro.org
Cc: John Garry <john.g.garry@oracle.com>
Cc: scclevenger@os.amperecomputing.com
Link: https://lore.kernel.org/r/20240916135743.1490403-4-james.clark@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
James Clark
2024-09-16 14:57:34 +01:00
committed by Namhyung Kim
parent ba5ae78a5a
commit 9943581c64
4 changed files with 35 additions and 1 deletions
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11
tools/perf/scripts/python/Perf-Trace-Util/Context.c
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@@ -12,6 +12,7 @@
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "../../../util/config.h"
#include "../../../util/trace-event.h"
#include "../../../util/event.h"
#include "../../../util/symbol.h"
@@ -182,6 +183,15 @@ static PyObject *perf_sample_srccode(PyObject *obj, PyObject *args)
return perf_sample_src(obj, args, true);
}
static PyObject *__perf_config_get(PyObject *obj, PyObject *args)
{
const char *config_name;
if (!PyArg_ParseTuple(args, "s", &config_name))
return NULL;
return Py_BuildValue("s", perf_config_get(config_name));
}
static PyMethodDef ContextMethods[] = {
#ifdef HAVE_LIBTRACEEVENT
{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
@@ -199,6 +209,7 @@ static PyMethodDef ContextMethods[] = {
METH_VARARGS, "Get source file name and line number."},
{ "perf_sample_srccode", perf_sample_srccode,
METH_VARARGS, "Get source file name, line number and line."},
{ "perf_config_get", __perf_config_get, METH_VARARGS, "Get perf config entry"},
{ NULL, NULL, 0, NULL}
};