From 13c71b92327aaacc7a3c3ca5f003f3f66ba5af65 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Sun, 30 May 2021 22:23:02 +0300 Subject: 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 Cc: Andi Kleen Cc: Jiri Olsa Link: https://lore.kernel.org/r/20210530192308.7382-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- .../perf/scripts/python/Perf-Trace-Util/Context.c | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'tools/perf/scripts/python/Perf-Trace-Util') 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 #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} }; -- cgit v1.2.3-59-g8ed1b