Tiago Medicci d63bb6d81d interpreters/python: Do not link to standard libraries
This commit prevents Python from linking to standard libraries.
This is needed because Python's `configure` script tests for a set
of available functions that are provided by NuttX (instead of the
toolchain) and not having `-nostdlib` set may give wrong results.
2025-05-11 11:31:57 +08:00

209 lines
8.3 KiB
Makefile

############################################################################
# apps/interpreters/python/Makefile
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(APPDIR)/Make.defs
CPYTHON_URL ?= "https://github.com/python/cpython/archive"
CPYTHON_VERSION = $(patsubst "%",%,$(strip $(CONFIG_INTERPRETER_CPYTHON_VERSION)))
CPYTHON_VERSION_MINOR=$(basename $(CPYTHON_VERSION))
CPYTHON_ZIP = v$(CPYTHON_VERSION).zip
CPYTHON_UNPACKNAME = Python
UNPACK ?= unzip -q -o
MACHDEP=nuttx
CONFIG_SITE=${CURDIR}/config.site
SETUP_LOCAL=${CURDIR}/Setup.local
CPYTHON_PATH=$(CURDIR)/$(CPYTHON_UNPACKNAME)
BUILDIR=$(CURDIR)/build
INSTALLDIR=$(CURDIR)/install
HOSTBUILD=$(BUILDIR)/host
HOSTINSTALL=$(INSTALLDIR)/host
HOSTPYTHON=$(HOSTINSTALL)/bin/python3
TARGETBUILD=$(BUILDIR)/target
TARGETINSTALL=$(INSTALLDIR)/target
TARGETLIBPYTHON=$(TARGETINSTALL)/libpython$(CPYTHON_VERSION_MINOR).a
TARGETMODULESPACK=$(TARGETBUILD)/lib/python$(shell echo $(CPYTHON_VERSION_MINOR) | tr -d .).zip
TARGETMODULES=$(TARGETINSTALL)/lib/
CFLAGS += ${INCDIR_PREFIX}$(CPYTHON_PATH)$(DELIM)Include
CFLAGS += ${INCDIR_PREFIX}$(CPYTHON_PATH)$(DELIM)Test
CFLAGS += ${INCDIR_PREFIX}$(CPYTHON_PATH)$(DELIM)Include$(DELIM)internal
CFLAGS += ${INCDIR_PREFIX}$(APPDIR)$(DELIM)system
CFLAGS += ${INCDIR_PREFIX}$(APPDIR)$(DELIM)system$(DELIM)zlib$(DELIM)zlib
CFLAGS += ${INCDIR_PREFIX}$(TARGETBUILD)
CFLAGS += -Wno-shadow -Wno-undef -Wno-format -Wno-builtin-macro-redefined
CFLAGS += -Wno-type-limits -Wno-implicit-fallthrough -Wno-char-subscripts
CFLAGS += -Wno-sign-compare -Wno-unused-const-variable -Wno-unused-function
CFLAGS += -Wno-unused-variable -Wno-overflow -Wno-unused-but-set-variable
CFLAGS += -Wno-strict-prototypes -nostdlib
DEPPATH += --dep-path $(CPYTHON_UNPACKNAME)$(DELIM)Programs
VPATH += :$(CPYTHON_UNPACKNAME)$(DELIM)Programs
$(CPYTHON_ZIP):
@echo "Downloading: $(CPYTHON_URL)/$(CPYTHON_ZIP)"
$(Q) $(call DOWNLOAD,$(CPYTHON_URL),$(CPYTHON_ZIP))
$(CPYTHON_UNPACKNAME): $(CPYTHON_ZIP)
@echo "Unpacking: $(CPYTHON_ZIP) -> $(CPYTHON_UNPACKNAME)"
$(Q) $(UNPACK) $(CPYTHON_ZIP)
$(Q) mv cpython-$(CPYTHON_VERSION) $(CPYTHON_UNPACKNAME)
@echo "Patching $(CPYTHON_UNPACKNAME)"
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0001-workaround-newlib-resource.h-limitations.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0002-fix-various-uint32_t-unsigned-int-type-mismatch-issu.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0003-reuse-wasm_assets.py-for-generating-an-archive-of-py.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0004-recognize-nuttx-as-a-supported-OS.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0005-gh-122907-Fix-Builds-Without-HAVE_DYNAMIC_LOADING-Se.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0006-change-var-name-to-avoid-conflict-with-nuttx-unused_.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0007-undef-atexit_register.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0008-declare-struct-timeval.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0009-include-nuttx-sys-select-header-to-define-FD_SETSIZE.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0010-check-for-the-d_ino-member-of-the-structure-dirent.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0011-avoid-redefinition-warning-if-UNUSED-is-already-defi.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0012-hack-place-_PyRuntime-structure-into-PSRAM-bss-regio.patch
$(Q) patch -p1 -d $(CPYTHON_UNPACKNAME) < patch$(DELIM)0013-transform-functions-used-by-NuttX-to-lowercase.patch
$(HOSTPYTHON):
mkdir -p $(HOSTBUILD)
mkdir -p $(HOSTINSTALL)
$(Q) ( \
cd $(HOSTBUILD) && $(CPYTHON_PATH)/configure \
--with-pydebug \
--prefix=$(HOSTINSTALL) \
)
$(MAKE) -C $(HOSTBUILD) install
# The `config.site` file contains settings that override the configuration
# settings provided by the `configure` script. Depending on the features
# enabled on NuttX, this file may need to be adjusted.
$(CONFIG_SITE):
$(Q) ( cp $(CONFIG_SITE).in $(CONFIG_SITE))
ifeq ($(CONFIG_ARCH_HAVE_FORK),y)
@echo "export ac_cv_func_fork=\"yes\"" >> $@
else
@echo "export ac_cv_func_fork=\"no\"" >> $@
endif
ifeq ($(CONFIG_SYSTEM_SYSTEM),y)
@echo "export ac_cv_func_system=\"yes\"" >> $@
else
@echo "export ac_cv_func_system=\"no\"" >> $@
endif
# The `Setup.local` file enables or disables Python modules.
# Depending on the features enabled on NuttX, this file may need to be
# adjusted. Please note that the base `Setup.local.in` file only contains
# a section to disable Python modules. Inserting lines to it will disable
# such modules.
$(SETUP_LOCAL):
$(Q) ( cp $(SETUP_LOCAL).in $(SETUP_LOCAL))
ifneq ($(CONFIG_ARCH_HAVE_FORK),y)
@echo "_posixsubprocess" >> $@
endif
# For the Python's `configure` script, please consider the following
# when building for NuttX:
#
# Use sed to remove optimization flags from NuttX's CFLAGS because
# Python's configure script requires them in OPT. Having the flags in
# both places causes a conflict.
#
# Also, use -O0 for OPT because -Os is causing problems in
# Python/Modules/getpath.c (issue will be filed soon to track this
# problem).
$(TARGETBUILD)/Makefile: $(HOSTPYTHON) $(CONFIG_SITE) $(SETUP_LOCAL)
$(Q) mkdir -p $(TARGETBUILD)/Modules
$(Q) mkdir -p $(TARGETMODULES)/python$(CPYTHON_VERSION_MINOR)
$(Q) ( cp Setup.local $(TARGETBUILD)/Modules/Setup.local )
$(Q) ( \
cd $(TARGETBUILD); \
CFLAGS="$(CFLAGS)"; \
ARCH=$(CONFIG_ARCH); \
ARCH_CHIP=$(CONFIG_ARCH_CHIP); \
ARCH="$${ARCH//-/}"; \
ARCH_CHIP="$${ARCH_CHIP//-/}"; \
CFLAGS="$$(echo "$${CFLAGS}" | sed 's/-Os //')" \
CC="$(CC)" \
CXX="$(CXX)" \
AR="$(AR)" \
ARFLAGS=" " \
MACHDEP="$(MACHDEP)" \
OPT="-g -O0 -Wall" \
CONFIG_SITE="$(CONFIG_SITE)" \
$(CPYTHON_PATH)/configure \
--prefix=${TARGETINSTALL} \
--disable-shared \
--host=$${ARCH}-$${ARCH_CHIP}-nuttx \
--build=$(shell $(CPYTHON_PATH)/config.guess) \
--with-build-python=${HOSTPYTHON} \
--without-mimalloc \
--without-pymalloc \
--disable-test-modules \
)
$(TARGETLIBPYTHON): $(TARGETBUILD)/Makefile
$(MAKE) -C $(TARGETBUILD) regen-frozen
$(MAKE) -C $(TARGETBUILD) libpython$(CPYTHON_VERSION_MINOR).a wasm_stdlib
$(Q) ( cp $(TARGETBUILD)/libpython$(CPYTHON_VERSION_MINOR).a $(TARGETLIBPYTHON) )
$(Q) $(UNPACK) $(TARGETMODULESPACK) -d $(TARGETMODULES)/python$(CPYTHON_VERSION_MINOR)
MODULE = $(CONFIG_INTERPRETER_CPYTHON)
PROGNAME += $(CONFIG_INTERPRETER_CPYTHON_PROGNAME)
PRIORITY += $(CONFIG_INTERPRETER_CPYTHON_PRIORITY)
STACKSIZE += $(CONFIG_INTERPRETER_CPYTHON_STACKSIZE)
MAINSRC += python_wrapper.c
checkgenromfs:
@genromfs -h 1>/dev/null 2>&1 || { \
echo "Host executable genromfs not available in PATH"; \
echo "You may need to download in from https://romfs.sourceforge.net/"; \
exit 1; \
}
romfs_cpython_modules.img : $(TARGETLIBPYTHON) checkgenromfs
@genromfs -f $@ -d $(TARGETMODULES) -V "ROMFS_Test" || { echo "genromfs failed" ; exit 1 ; }
romfs_cpython_modules.h : romfs_cpython_modules.img
@xxd -i $< | sed -e "s/^unsigned/static const unsigned/g" >$@ || { echo "xxd of $< failed" ; exit 1 ; }
context:: $(CPYTHON_UNPACKNAME)
depend:: romfs_cpython_modules.h
distclean::
$(call DELDIR, $(BUILDIR))
$(call DELDIR, $(INSTALLDIR))
$(call DELDIR, $(CPYTHON_UNPACKNAME))
$(call DELFILE, $(CPYTHON_ZIP))
$(call DELFILE, romfs_cpython_modules.img)
$(call DELFILE, romfs_cpython_modules.h)
$(call DELFILE, config.site)
$(call DELFILE, Setup.local)
include $(APPDIR)/Application.mk