[RFC PATCH 3/7] perf: make python support based on CONFIG_LIBPYTHON
From: David Ahern
Date: Mon Aug 20 2012 - 00:46:04 EST
Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
---
tools/perf/Makefile | 117 ++++++++++++++-----------------
tools/perf/config/feature-tests.mak | 2 +-
tools/perf/util/trace-event-scripting.c | 17 ++---
3 files changed, 60 insertions(+), 76 deletions(-)
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index a447aa8..35448ef 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -16,8 +16,6 @@ include config/utilities.mak
#
# Define CROSS_COMPILE as prefix name of compiler if you want cross-builds.
#
-# Define NO_LIBPYTHON to disable python script extension.
-#
# Define PYTHON to point to the python binary if the default
# `python' is not correct; for example: PYTHON=python2
#
@@ -630,78 +628,67 @@ ifdef CONFIG_LIBPERL
LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o
endif
-disable-python = $(eval $(disable-python_code))
-define disable-python_code
- BASIC_CFLAGS += -DNO_LIBPYTHON
- $(if $(1),$(warning No $(1) was found))
- $(warning Python support won't be built)
-endef
-
-override PYTHON := \
- $(call get-executable-or-default,PYTHON,python)
-
-ifndef PYTHON
- $(call disable-python,python interpreter)
- python-clean :=
-else
+ifdef CONFIG_LIBPYTHON
+ override PYTHON := \
+ $(call get-executable-or-default,PYTHON,python)
- PYTHON_WORD := $(call shell-wordify,$(PYTHON))
+ ifndef PYTHON
+ $(warning python interpreter not found.)
+ $(warning Install it or unset CONFIG_LIBPYTHON to continue.)
+ $(error )
+ endif
- # python extension build directories
- PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/
- PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
- PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
- export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
+ PYTHON_WORD := $(call shell-wordify,$(PYTHON))
- python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
+ # python extension build directories
+ PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/
+ PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
+ PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
+ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
- ifdef NO_LIBPYTHON
- $(call disable-python)
- else
+ python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
override PYTHON_CONFIG := \
- $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config)
+ $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config)
ifndef PYTHON_CONFIG
- $(call disable-python,python-config tool)
- else
-
- PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
-
- PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
- PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
- PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
- PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
- FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
-
- ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y)
- $(call disable-python,Python.h (for Python 2.x))
- else
-
- ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED)),y)
- $(warning Python 3 is not yet supported; please set)
- $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
- $(warning If you also have Python 2 installed, then)
- $(warning try something like:)
- $(warning $(and ,))
- $(warning $(and ,) make PYTHON=python2)
- $(warning $(and ,))
- $(warning Otherwise, disable Python support entirely:)
- $(warning $(and ,))
- $(warning $(and ,) make NO_LIBPYTHON=1)
- $(warning $(and ,))
- $(error $(and ,))
- else
- ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
- EXTLIBS += $(PYTHON_EMBED_LIBADD)
- LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
- LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
- LANG_BINDINGS += $(OUTPUT)python/perf.so
- endif
-
- endif
+ $(warning python-config not found.)
+ $(warning Install it or unset CONFIG_LIBPYTHON to continue.)
+ $(error )
endif
- endif
+
+ PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
+
+ PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
+ PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
+ PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
+ PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
+ FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
+
+ ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y)
+ $(warning Failed to detect python development kit.)
+ $(warning Install it or unset CONFIG_LIBPYTHON to continue.)
+ $(warning e.g., apt-get install python-dev (ubuntu).)
+ $(warning yum install python-devel (Fedora).)
+ $(error )
+ endif
+
+ ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED)),y)
+ $(warning Python 3 is not yet supported; please set)
+ $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
+ $(warning If you also have Python 2 installed, then)
+ $(warning try something like:)
+ $(warning $(and ,))
+ $(warning $(and ,) make PYTHON=python2)
+ $(warning $(and ,))
+ $(warning Otherwise, disable Python support entirely by unsetting CONFIG_LIBPYTHON.)
+ endif
+
+ ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
+ EXTLIBS += $(PYTHON_EMBED_LIBADD)
+ LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
+ LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
+ LANG_BINDINGS += $(OUTPUT)python/perf.so
endif
ifdef NO_DEMANGLE
diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak
index 0145c05..dbf1127 100644
--- a/tools/perf/config/feature-tests.mak
+++ b/tools/perf/config/feature-tests.mak
@@ -106,7 +106,7 @@ return 0;
endef
endif
-ifndef NO_LIBPYTHON
+ifdef CONFIG_LIBPYTHON
define SOURCE_PYTHON_VERSION
#include <Python.h>
#if PY_VERSION_HEX >= 0x03000000
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index edaed05..85115b8 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -46,11 +46,8 @@ static void process_event_unsupported(union perf_event *event __unused,
static void print_python_unsupported_msg(void)
{
- fprintf(stderr, "Python scripting not supported."
- " Install libpython and rebuild perf to enable it.\n"
- "For example:\n # apt-get install python-dev (ubuntu)"
- "\n # yum install python-devel (Fedora)"
- "\n etc.\n");
+ fprintf(stderr, "Python scripting not supported.\n"
+ "Enable CONFIG_LIBPYTHON and rebuild perf to enable it.\n");
}
static int python_start_script_unsupported(const char *script __unused,
@@ -92,17 +89,17 @@ static void register_python_scripting(struct scripting_ops *scripting_ops)
scripting_context = malloc(sizeof(struct scripting_context));
}
-#ifdef NO_LIBPYTHON
+#ifdef CONFIG_LIBPYTHON
+extern struct scripting_ops python_scripting_ops;
+
void setup_python_scripting(void)
{
- register_python_scripting(&python_scripting_unsupported_ops);
+ register_python_scripting(&python_scripting_ops);
}
#else
-extern struct scripting_ops python_scripting_ops;
-
void setup_python_scripting(void)
{
- register_python_scripting(&python_scripting_ops);
+ register_python_scripting(&python_scripting_unsupported_ops);
}
#endif
--
1.7.10.1
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