perf: Remove libpython support and legacy Python scripts

Remove embedded Python interpreter support (libpython) from perf, as
all Python scripts have been migrated to standalone scripts using the
perf Python extension module.

Changes include:
- Remove libpython detection and build flags from Makefile.config.
- Remove legacy Python script installation rules from Makefile.perf.
- Delete tools/perf/util/scripting-engines/trace-event-python.c and
  tools/perf/scripts/python/Perf-Trace-Util/Context.c.
- Remove Python scripting engine registration from
  trace-event-scripting.c.
- Remove libpython from the supported features list in builtin-check.c
  and Documentation/perf-check.txt.
- Delete the legacy Python scripts and bin wrappers in
  tools/perf/scripts/python/ and update shell tests.

Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 0 insertions, 225 deletions

diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
deleted file mode 100644
index c19f44610983..000000000000
--- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c
+++ /dev/null
@@ -1,225 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Context.c.  Python interfaces for perf script.
- *
- * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
- */
-
-/*
- * Use Py_ssize_t for '#' formats to avoid DeprecationWarning: PY_SSIZE_T_CLEAN
- * will be required for '#' formats.
- */
-#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"
-#include "../../../util/thread.h"
-#include "../../../util/map.h"
-#include "../../../util/maps.h"
-#include "../../../util/auxtrace.h"
-#include "../../../util/session.h"
-#include "../../../util/srcline.h"
-#include "../../../util/srccode.h"
-
-#define _PyCapsule_GetPointer(arg1, arg2) \
-  PyCapsule_GetPointer((arg1), (arg2))
-#define _PyBytes_FromStringAndSize(arg1, arg2) \
-  PyBytes_FromStringAndSize((arg1), (arg2))
-#define _PyUnicode_AsUTF8(arg) \
-  PyUnicode_AsUTF8(arg)
-
-PyMODINIT_FUNC PyInit_perf_trace_context(void);
-
-static struct scripting_context *get_args(PyObject *args, const char *name, PyObject **arg2)
-{
-	int cnt = 1 + !!arg2;
-	PyObject *context;
-
-	if (!PyArg_UnpackTuple(args, name, 1, cnt, &context, arg2))
-		return NULL;
-
-	return _PyCapsule_GetPointer(context, NULL);
-}
-
-static struct scripting_context *get_scripting_context(PyObject *args)
-{
-	return get_args(args, "context", NULL);
-}
-
-#ifdef HAVE_LIBTRACEEVENT
-static PyObject *perf_trace_context_common_pc(PyObject *obj, PyObject *args)
-{
-	struct scripting_context *c = get_scripting_context(args);
-
-	if (!c)
-		return NULL;
-
-	return Py_BuildValue("i", common_pc(c));
-}
-
-static PyObject *perf_trace_context_common_flags(PyObject *obj,
-						 PyObject *args)
-{
-	struct scripting_context *c = get_scripting_context(args);
-
-	if (!c)
-		return NULL;
-
-	return Py_BuildValue("i", common_flags(c));
-}
-
-static PyObject *perf_trace_context_common_lock_depth(PyObject *obj,
-						      PyObject *args)
-{
-	struct scripting_context *c = get_scripting_context(args);
-
-	if (!c)
-		return NULL;
-
-	return Py_BuildValue("i", common_lock_depth(c));
-}
-#endif
-
-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 && thread__maps(c->al->thread)) {
-		struct machine *machine =  maps__machine(thread__maps(c->al->thread));
-
-		perf_sample__fetch_insn(c->sample, c->al->thread, 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 PyObject *perf_set_itrace_options(PyObject *obj, PyObject *args)
-{
-	struct scripting_context *c;
-	const char *itrace_options;
-	int retval = -1;
-	PyObject *str;
-
-	c = get_args(args, "itrace_options", &str);
-	if (!c)
-		return NULL;
-
-	if (!c->session || !c->session->itrace_synth_opts)
-		goto out;
-
-	if (c->session->itrace_synth_opts->set) {
-		retval = 1;
-		goto out;
-	}
-
-	itrace_options = _PyUnicode_AsUTF8(str);
-
-	retval = itrace_do_parse_synth_opts(c->session->itrace_synth_opts, itrace_options, 0);
-out:
-	return Py_BuildValue("i", retval);
-}
-
-static PyObject *perf_sample_src(PyObject *obj, PyObject *args, bool get_srccode)
-{
-	struct scripting_context *c = get_scripting_context(args);
-	unsigned int line = 0;
-	char *srcfile = NULL;
-	char *srccode = NULL;
-	PyObject *result;
-	struct map *map;
-	struct dso *dso;
-	int len = 0;
-	u64 addr;
-
-	if (!c)
-		return NULL;
-
-	map = c->al->map;
-	addr = c->al->addr;
-	dso = map ? map__dso(map) : NULL;
-
-	if (dso)
-		srcfile = get_srcline_split(dso, map__rip_2objdump(map, addr), &line);
-
-	if (get_srccode) {
-		if (srcfile)
-			srccode = find_sourceline(srcfile, line, &len);
-		result = Py_BuildValue("(sIs#)", srcfile, line, srccode, (Py_ssize_t)len);
-	} else {
-		result = Py_BuildValue("(sI)", srcfile, line);
-	}
-
-	free(srcfile);
-
-	return result;
-}
-
-static PyObject *perf_sample_srcline(PyObject *obj, PyObject *args)
-{
-	return perf_sample_src(obj, args, false);
-}
-
-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,
-	  "Get the common preempt count event field value."},
-	{ "common_flags", perf_trace_context_common_flags, METH_VARARGS,
-	  "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."},
-#endif
-	{ "perf_sample_insn", perf_sample_insn,
-	  METH_VARARGS,	"Get the machine code instruction."},
-	{ "perf_set_itrace_options", perf_set_itrace_options,
-	  METH_VARARGS,	"Set --itrace options."},
-	{ "perf_sample_srcline", perf_sample_srcline,
-	  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}
-};
-
-PyMODINIT_FUNC PyInit_perf_trace_context(void)
-{
-	static struct PyModuleDef moduledef = {
-		PyModuleDef_HEAD_INIT,
-		"perf_trace_context",	/* m_name */
-		"",			/* m_doc */
-		-1,			/* m_size */
-		ContextMethods,		/* m_methods */
-		NULL,			/* m_reload */
-		NULL,			/* m_traverse */
-		NULL,			/* m_clear */
-		NULL,			/* m_free */
-	};
-	PyObject *mod;
-
-	mod = PyModule_Create(&moduledef);
-	/* Add perf_script_context to the module so it can be imported */
-	PyObject_SetAttrString(mod, "perf_script_context", Py_None);
-
-	return mod;
-}