Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
authored by
Adrian Hunter
and committed by
Arnaldo Carvalho de Melo
13c71b92
d9ae9c97
+27
+27
tools/perf/scripts/python/Perf-Trace-Util/Context.c
+27
tools/perf/scripts/python/Perf-Trace-Util/Context.c
···
7
7
8
8
#include <Python.h>
9
9
#include "../../../util/trace-event.h"
10
+
#include "../../../util/event.h"
11
+
#include "../../../util/symbol.h"
12
+
#include "../../../util/thread.h"
13
+
#include "../../../util/maps.h"
10
14
11
15
#if PY_MAJOR_VERSION < 3
12
16
#define _PyCapsule_GetPointer(arg1, arg2) \
13
17
PyCObject_AsVoidPtr(arg1)
18
+
#define _PyBytes_FromStringAndSize(arg1, arg2) \
19
+
PyString_FromStringAndSize((arg1), (arg2))
14
20
15
21
PyMODINIT_FUNC initperf_trace_context(void);
16
22
#else
17
23
#define _PyCapsule_GetPointer(arg1, arg2) \
18
24
PyCapsule_GetPointer((arg1), (arg2))
25
+
#define _PyBytes_FromStringAndSize(arg1, arg2) \
26
+
PyBytes_FromStringAndSize((arg1), (arg2))
19
27
20
28
PyMODINIT_FUNC PyInit_perf_trace_context(void);
21
29
#endif
···
70
62
return Py_BuildValue("i", common_lock_depth(c));
71
63
}
72
64
65
+
static PyObject *perf_sample_insn(PyObject *obj, PyObject *args)
66
+
{
67
+
struct scripting_context *c = get_scripting_context(args);
68
+
69
+
if (!c)
70
+
return NULL;
71
+
72
+
if (c->sample->ip && !c->sample->insn_len &&
73
+
c->al->thread->maps && c->al->thread->maps->machine)
74
+
script_fetch_insn(c->sample, c->al->thread, c->al->thread->maps->machine);
75
+
76
+
if (!c->sample->insn_len)
77
+
Py_RETURN_NONE; /* N.B. This is a return statement */
78
+
79
+
return _PyBytes_FromStringAndSize(c->sample->insn, c->sample->insn_len);
80
+
}
81
+
73
82
static PyMethodDef ContextMethods[] = {
74
83
{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
75
84
"Get the common preempt count event field value."},
···
94
69
"Get the common flags event field value."},
95
70
{ "common_lock_depth", perf_trace_context_common_lock_depth,
96
71
METH_VARARGS, "Get the common lock depth event field value."},
72
+
{ "perf_sample_insn", perf_sample_insn,
73
+
METH_VARARGS, "Get the machine code instruction."},
97
74
{ NULL, NULL, 0, NULL}
98
75
};
99
76