aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/scripts/python/Perf-Trace-Util
diff options
context:
space:
mode:
authorAdrian Hunter <adrian.hunter@intel.com>2021-05-30 22:23:02 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-06-01 10:03:58 -0300
commit13c71b92327aaacc7a3c3ca5f003f3f66ba5af65 (patch)
treeb82b867b8945d35c16eb1898a7d42ea309eccc5a /tools/perf/scripts/python/Perf-Trace-Util
parentperf script: Factor out script_fetch_insn() (diff)
downloadlinux-dev-13c71b92327aaacc7a3c3ca5f003f3f66ba5af65.tar.xz
linux-dev-13c71b92327aaacc7a3c3ca5f003f3f66ba5af65.zip
perf scripting python: Add perf_sample_insn()
Add perf_sample_insn() to the perf_trace_context module so that a script can get the instruction bytes. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210530192308.7382-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util')
-rw-r--r--tools/perf/scripts/python/Perf-Trace-Util/Context.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
index 26a45ae78be4..d7f044259f9b 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c
+++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
@@ -7,15 +7,23 @@
#include <Python.h>
#include "../../../util/trace-event.h"
+#include "../../../util/event.h"
+#include "../../../util/symbol.h"
+#include "../../../util/thread.h"
+#include "../../../util/maps.h"
#if PY_MAJOR_VERSION < 3
#define _PyCapsule_GetPointer(arg1, arg2) \
PyCObject_AsVoidPtr(arg1)
+#define _PyBytes_FromStringAndSize(arg1, arg2) \
+ PyString_FromStringAndSize((arg1), (arg2))
PyMODINIT_FUNC initperf_trace_context(void);
#else
#define _PyCapsule_GetPointer(arg1, arg2) \
PyCapsule_GetPointer((arg1), (arg2))
+#define _PyBytes_FromStringAndSize(arg1, arg2) \
+ PyBytes_FromStringAndSize((arg1), (arg2))
PyMODINIT_FUNC PyInit_perf_trace_context(void);
#endif
@@ -62,6 +70,23 @@ static PyObject *perf_trace_context_common_lock_depth(PyObject *obj,
return Py_BuildValue("i", common_lock_depth(c));
}
+static PyObject *perf_sample_insn(PyObject *obj, PyObject *args)
+{
+ struct scripting_context *c = get_scripting_context(args);
+
+ if (!c)
+ return NULL;
+
+ if (c->sample->ip && !c->sample->insn_len &&
+ c->al->thread->maps && c->al->thread->maps->machine)
+ script_fetch_insn(c->sample, c->al->thread, c->al->thread->maps->machine);
+
+ if (!c->sample->insn_len)
+ Py_RETURN_NONE; /* N.B. This is a return statement */
+
+ return _PyBytes_FromStringAndSize(c->sample->insn, c->sample->insn_len);
+}
+
static PyMethodDef ContextMethods[] = {
{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
"Get the common preempt count event field value."},
@@ -69,6 +94,8 @@ static PyMethodDef ContextMethods[] = {
"Get the common flags event field value."},
{ "common_lock_depth", perf_trace_context_common_lock_depth,
METH_VARARGS, "Get the common lock depth event field value."},
+ { "perf_sample_insn", perf_sample_insn,
+ METH_VARARGS, "Get the machine code instruction."},
{ NULL, NULL, 0, NULL}
};