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# GNUmakefile - Main build script for sbc-harness project
#
# Copyright (C) 2024-2025 Luke T. Shumaker <lukeshu@lukeshu.com>
# SPDX-License-Identifier: AGPL-3.0-or-later
# Project configuration ########################################################
linux.git = $(HOME)/src/github.com/torvalds/linux
all: build
.PHONY: all
# Configure GNU Make itself ####################################################
ifeq ($(filter notintermediate,$(.FEATURES)),)
$(error This $(firstword $(MAKEFILE_LIST)) requies GNU Make 4.4 or later for .NOTINTERMEDIATE)
endif
.NOTINTERMEDIATE:
.DELETE_ON_ERROR:
.PHONY: FORCE
# `generate` ###################################################################
generate/files =
generate/files += COPYING.txt
COPYING.txt:
wget --no-use-server-timestamps -O $@ https://www.gnu.org/licenses/agpl-3.0.txt
generate/files += 3rd-party/COPYING.newlib.txt
3rd-party/COPYING.newlib.txt: /usr/share/licenses/arm-none-eabi-newlib/COPYING.NEWLIB
cp $< $@
generate/files += libmisc/tests/test_obj_autobox.c
libmisc/tests/test_obj_autobox.c: %: %.gen libmisc/tests/test_obj_nest.c
$^ $@
generate/files += 3rd-party/linux-errno.txt
3rd-party/linux-errno.txt: lib9p/linux-errno.txt.gen
$< $(linux.git) $@
generate/files += libmisc/error_generated.c
libmisc/error_generated.c: %: %.gen libmisc/include/libmisc/error.h
$^ $@
generate/files += lib9p/idl/2010-9P2000.L.9p
lib9p/idl/2010-9P2000.L.9p: %: %.gen 3rd-party/linux-errno.txt
$^ >$@
generate/files += lib9p/core_generated.c lib9p/core_include/lib9p/_core_generated.h
lib9p/core_generated.c lib9p/core_include/lib9p/_core_generated.h &: lib9p/core.gen lib9p/idl/__init__.py lib9p/core_gen lib9p/core_gen/*.py lib9p/idl lib9p/idl/2010-9P2000.L.9p lib9p/idl/*.9p
$< $(sort $(filter %.9p,$^))
generate/files += lib9p/srv_generated.c
lib9p/srv_generated.c: %: %.gen libmisc/include/libmisc/error.h
$^ $@
generate/files += lib9p/tests/test_compile.c
lib9p/tests/test_compile.c: %: %.gen lib9p/core_include/lib9p/_core_generated.h
$^ $@
generate/files += libusb/include/libusb/tusb_helpers.h 3rd-party/MS-LCID.pdf 3rd-party/MS-LCID.txt
libusb/include/libusb/tusb_helpers.h 3rd-party/MS-LCID.pdf 3rd-party/MS-LCID.txt &: libusb/include/libusb/tusb_helpers.h.gen
$^
generate/files += lib9p_util/nut.h
lib9p_util/nut.h: %: %.gen lib9p_util/nut_gen lib9p_util/nut_gen/*.py
$< $@
generate/files += build-aux/sources.mk
ifeq ($(INNER),)
nonsource/files = $(generate/files)
nonsource/files += 3rd-party/COPYING.wiznet-dhcp.txt
# 100644 blob/regular file
# 100755 blob/executable file
# 120000 blob/symlink
# 160000 commit (submodule)
# 040000 tree (directory)
build-aux/sources.mk: $(if $(wildcard .git),FORCE)
git ls-files --format='%(objectmode) %(path)' \
| sed -n 's/^100... //p' \
| grep -vFx $(foreach f,$(nonsource/files),-e $f) \
| sed 's,^,$(CURDIR)/,' | xargs editorconfig \
| sed -nE -e 's,\[$(CURDIR)/(.*)\],\1,p' -e 's/^_mode=//p' \
| sed -E '{N;s/(.*)\n(.*)/sources_\2 += \1/;}' \
| sort \
>$@.tmp
if ! cmp -s $@.tmp $@; then mv $@.tmp $@; fi
@echo '################################################################################'
endif
generate:
ifeq ($(INNER),)
generate: $(generate/files)
endif
.PHONY: generate
generate-clean:
rm -f -- $(generate/files)
.PHONY: generate-clean
# `build` and `check` ##########################################################
# define the matrix
platforms_build = rp2040
platforms_check = host
platforms = $(platforms_build) $(platforms_check)
build_types = Debug Release RelWithDebInfo MinSizeRel
# span the matrix
build: $(foreach t,$(build_types),$(foreach p,$(platforms_build),build/$p-$t/build))
.PHONY: build
build-check: $(foreach t,$(build_types),$(foreach p,$(platforms_check),build/$p-$t/build))
.PHONY: build-check
check: generate
$(MAKE) -k INNER=t $(foreach t,$(build_types),$(foreach p,$(platforms_check),build/$p-$t/check))
.PHONY: check
# define the cells
# build/{matrix}/Makefile
$(foreach t,$(build_types),$(foreach p,$(platforms),build/$p-$t/Makefile)): build/%/Makefile:
mkdir -p $(@D) && cd $(@D) && cmake -DPICO_PLATFORM=$(firstword $(subst -, ,$*)) -DCMAKE_BUILD_TYPE=$(lastword $(subst -, ,$*)) ../..
# build/{matrix}/build
$(foreach t,$(build_types),$(foreach p,$(platforms),build/$p-$t/build)): build/%/build: build/%/Makefile generate
$(MAKE) -C $(<D)
.PHONY: $(foreach t,$(build_types),$(foreach p,$(platforms),build/$p-$t/build))
# build/{matrix}/check
#
# `gcc` writes .gcno
# Running the program writes .gcda (updates existing files, concurrent-safe)
# GCC `gcov` post-processes .gcno+.gcda to .gcov
# `gcovr` is a Python script that calls `gcov` and merges and post-processes the .gcov files to other formats
gcovr_flags = --txt=$(@D)/coverage.txt
gcovr_flags += --html=$(@D)/coverage.html --html-details --html-single-page=js-enabled
gcovr_flags += --sort uncovered-number --sort-reverse
$(foreach t,$(build_types),$(foreach p,$(platforms_check),build/$p-$t/check)): build/%/check: build/%/build
./build-aux/gcov-prune $(@D)
+cd $(@D) && ctest --output-on-failure $(if $(filter --jobserver-auth=%,$(MAKEFLAGS)),--parallel)
gcovr $(gcovr_flags) -- $(@D)
.PHONY: $(foreach t,$(build_types),$(foreach p,$(platforms_check),build/$p-$t/check))
# `lint` and `format` ##########################################################
-include build-aux/sources.mk
sources_all := $(foreach v,$(filter sources_%,$(.VARIABLES)),$($v))
build-aux/venv: build-aux/requirements.txt
python3 -m venv $@
$@/bin/pip install -r $<
touch --no-create $@
flashimgs = $(patsubst flashimg/%/CMakeLists.txt,%,$(filter flashimg/%/CMakeLists.txt,$(sources_cmake)))
# `lint` ###############################
lint: lint/src .WAIT lint/bin
lint/src:
$(MAKE) -k INNER=t $(patsubst sources_%,lint/%,$(filter-out sources_all,$(filter sources_%,$(.VARIABLES))))
lint/bin: build build-aux/lint-bin
./build-aux/lint-bin $(foreach i,$(flashimgs),$(foreach t,$(build_types),$(foreach p,$(platforms_build),build/$p-$t/flashimg/$i/$i.elf)))
$(patsubst sources_%,lint/%,$(filter-out sources_all,$(filter sources_%,$(.VARIABLES)))): build-aux/lint-src
./build-aux/lint-src $(@F) $(sources_$(@F))
lint/python3: build-aux/venv
.PHONY: lint lint/%
# `format` #############################
# generic ##########
format: $(patsubst sources_%,format/%,$(filter-out sources_all sources_unknown,$(filter sources_%,$(.VARIABLES))))
.PHONY: format format/%
# specific #########
format/c: format/%:
@: TODO: Adopt a C code-formatter
format/sh format/bash: format/%:
shfmt --write --case-indent --simplify $(sources_$(@F))
format/python3: ./build-aux/venv
./build-aux/venv/bin/black $(sources_$(@F))
./build-aux/venv/bin/isort $(sources_$(@F))
format/make format/cmake format/gitignore format/ini format/9p-idl format/9p-log format/markdown format/pip format/man-cat:
@: TODO: Write/adopt formatters for these file types
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