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#
# Copyright (C) 2018 Jeffery To
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
ifeq ($(origin GO_INCLUDE_DIR),undefined)
GO_INCLUDE_DIR:=$(dir $(lastword $(MAKEFILE_LIST)))
endif
include $(GO_INCLUDE_DIR)/golang-values.mk
# Variables (all optional, except GO_PKG) to be set in package
# Makefiles:
#
# GO_PKG (required) - name of Go package
#
# Go name of the package.
#
# e.g. GO_PKG:=golang.org/x/text
#
#
# GO_PKG_INSTALL_EXTRA - list of regular expressions, default empty
#
# Additional files/directories to install. By default, only these
# files are installed:
#
# * Files with one of these extensions:
# .go, .c, .cc, .h, .hh, .proto, .s
#
# * Files in any 'testdata' directory
#
# e.g. GO_PKG_INSTALL_EXTRA:=example.toml marshal_test.toml
#
#
# GO_PKG_INSTALL_ALL - boolean (0 or 1), default false
#
# If true, install all files regardless of extension or directory.
#
# e.g. GO_PKG_INSTALL_ALL:=1
#
#
# GO_PKG_SOURCE_ONLY - boolean (0 or 1), default false
#
# If true, 'go install' will not be called. If the package does not
# (or should not) build any binaries, then specifying this option will
# save build time.
#
# e.g. GO_PKG_SOURCE_ONLY:=1
#
#
# GO_PKG_BUILD_PKG - list of build targets, default GO_PKG/...
#
# Build targets for compiling this Go package, i.e. arguments passed
# to 'go install'
#
# e.g. GO_PKG_BUILD_PKG:=github.com/debian/ratt/cmd/...
#
#
# GO_PKG_EXCLUDES - list of regular expressions, default empty
#
# Patterns to exclude from the build targets expanded from
# GO_PKG_BUILD_PKG.
#
# e.g. GO_PKG_EXCLUDES:=examples/
#
#
# GO_PKG_GO_GENERATE - boolean (0 or 1), default false
#
# If true, 'go generate' will be called on all build targets (as
# determined by GO_PKG_BUILD_PKG and GO_PKG_EXCLUDES). This is usually
# not necessary.
#
# e.g. GO_PKG_GO_GENERATE:=1
# Credit for this package build process (GoPackage/Build/Configure and
# GoPackage/Build/Compile) belong to Debian's dh-golang completely.
# https://anonscm.debian.org/cgit/pkg-go/packages/dh-golang.git
# for building packages, not user code
GO_PKG_PATH:=/usr/share/gocode
GO_PKG_BUILD_PKG?=$(GO_PKG)/...
GO_PKG_WORK_DIR_NAME:=.go_work
GO_PKG_WORK_DIR:=$(PKG_BUILD_DIR)/$(GO_PKG_WORK_DIR_NAME)
GO_PKG_BUILD_DIR:=$(GO_PKG_WORK_DIR)/build
GO_PKG_CACHE_DIR:=$(GO_PKG_WORK_DIR)/cache
GO_PKG_TMP_DIR:=$(GO_PKG_WORK_DIR)/tmp
GO_PKG_BUILD_BIN_DIR:=$(GO_PKG_BUILD_DIR)/bin$(if \
$(GO_HOST_TARGET_DIFFERENT),/$(GO_OS)_$(GO_ARCH))
GO_PKG_BUILD_DEPENDS_SRC:=$(STAGING_DIR)$(GO_PKG_PATH)/src
# sstrip causes corrupted section header size
ifneq ($(CONFIG_USE_SSTRIP),)
ifneq ($(CONFIG_DEBUG),)
GO_PKG_STRIP_ARGS:=--strip-unneeded --remove-section=.comment --remove-section=.note
else
GO_PKG_STRIP_ARGS:=--strip-all
endif
STRIP:=$(TARGET_CROSS)strip $(GO_PKG_STRIP_ARGS)
RSTRIP= \
export CROSS="$(TARGET_CROSS)" \
$(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
$(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
$(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
NM="$(TARGET_CROSS)nm" \
STRIP="$(STRIP)" \
STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
$(SCRIPT_DIR)/rstrip.sh
endif
define GoPackage/GoSubMenu
SUBMENU:=Go
SECTION:=lang
CATEGORY:=Languages
endef
define GoPackage/Environment
GOOS=$(GO_OS) \
GOARCH=$(GO_ARCH) \
GO386=$(GO_386) \
GOARM=$(GO_ARM) \
GOMIPS=$(GO_MIPS) \
GOMIPS64=$(GO_MIPS64) \
CGO_ENABLED=1 \
CGO_CFLAGS="$(filter-out $(GO_CFLAGS_TO_REMOVE),$(TARGET_CFLAGS))" \
CGO_CPPFLAGS="$(TARGET_CPPFLAGS)" \
CGO_CXXFLAGS="$(filter-out $(GO_CFLAGS_TO_REMOVE),$(TARGET_CXXFLAGS))"
endef
# false if directory does not exist
GoPackage/is_dir_not_empty=$$$$($(FIND) $(1) -maxdepth 0 -type d \! -empty 2>/dev/null)
GoPackage/has_binaries=$(call GoPackage/is_dir_not_empty,$(GO_PKG_BUILD_BIN_DIR))
define GoPackage/Build/Configure
( \
cd $(PKG_BUILD_DIR) ; \
mkdir -p $(GO_PKG_BUILD_DIR)/bin $(GO_PKG_BUILD_DIR)/src \
$(GO_PKG_CACHE_DIR) $(GO_PKG_TMP_DIR) ; \
\
files=$$$$($(FIND) ./ \
-type d -a \( -path './.git' -o -path './$(GO_PKG_WORK_DIR_NAME)' \) -prune -o \
\! -type d -print | \
sed 's|^\./||') ; \
\
if [ "$(GO_PKG_INSTALL_ALL)" != 1 ]; then \
code=$$$$(echo "$$$$files" | grep '\.\(c\|cc\|go\|h\|hh\|proto\|s\)$$$$') ; \
testdata=$$$$(echo "$$$$files" | grep '\(^\|/\)testdata/') ; \
\
for pattern in $(GO_PKG_INSTALL_EXTRA); do \
extra=$$$$(echo "$$$$extra"; echo "$$$$files" | grep "$$$$pattern") ; \
done ; \
\
files=$$$$(echo "$$$$code"; echo "$$$$testdata"; echo "$$$$extra") ; \
files=$$$$(echo "$$$$files" | grep -v '^[[:space:]]*$$$$' | sort -u) ; \
fi ; \
\
echo "Copying files from $(PKG_BUILD_DIR) into $(GO_PKG_BUILD_DIR)/src/$(GO_PKG)" ; \
for file in $$$$files; do \
echo $$$$file ; \
dest=$(GO_PKG_BUILD_DIR)/src/$(GO_PKG)/$$$$file ; \
mkdir -p $$$$(dirname $$$$dest) ; \
$(CP) $$$$file $$$$dest ; \
done ; \
echo ; \
\
link_contents() { \
local src=$$$$1 ; \
local dest=$$$$2 ; \
local dirs dir base ; \
\
if [ -n "$$$$($(FIND) $$$$src -mindepth 1 -maxdepth 1 -name '*.go' \! -type d)" ]; then \
echo "$$$$src is already a Go library" ; \
return 1 ; \
fi ; \
\
dirs=$$$$($(FIND) $$$$src -mindepth 1 -maxdepth 1 -type d) ; \
for dir in $$$$dirs; do \
base=$$$$(basename $$$$dir) ; \
if [ -d $$$$dest/$$$$base ]; then \
case $$$$dir in \
*$(GO_PKG_PATH)/src/$(GO_PKG)) \
echo "$(GO_PKG) is already installed. Please check for circular dependencies." ;; \
*) \
link_contents $$$$src/$$$$base $$$$dest/$$$$base ;; \
esac ; \
else \
echo "...$$$${src#$(GO_PKG_BUILD_DEPENDS_SRC)}/$$$$base" ; \
$(LN) $$$$src/$$$$base $$$$dest/$$$$base ; \
fi ; \
done ; \
} ; \
\
if [ "$(GO_PKG_SOURCE_ONLY)" != 1 ]; then \
if [ -d $(GO_PKG_BUILD_DEPENDS_SRC) ]; then \
echo "Symlinking directories from $(GO_PKG_BUILD_DEPENDS_SRC) into $(GO_PKG_BUILD_DIR)/src" ; \
link_contents $(GO_PKG_BUILD_DEPENDS_SRC) $(GO_PKG_BUILD_DIR)/src ; \
else \
echo "$(GO_PKG_BUILD_DEPENDS_SRC) does not exist, skipping symlinks" ; \
fi ; \
else \
echo "Not building binaries, skipping symlinks" ; \
fi ; \
echo ; \
)
endef
# $(1) additional arguments for go command line (optional)
define GoPackage/Build/Compile
( \
cd $(GO_PKG_BUILD_DIR) ; \
export GOPATH=$(GO_PKG_BUILD_DIR) \
GOCACHE=$(GO_PKG_CACHE_DIR) \
GOTMPDIR=$(GO_PKG_TMP_DIR) \
GOROOT_FINAL=$(GO_TARGET_ROOT) \
CC=$(TARGET_CC) \
CXX=$(TARGET_CXX) \
$(call GoPackage/Environment) ; \
\
echo "Finding targets" ; \
targets=$$$$(go list $(GO_PKG_BUILD_PKG)) ; \
for pattern in $(GO_PKG_EXCLUDES); do \
targets=$$$$(echo "$$$$targets" | grep -v "$$$$pattern") ; \
done ; \
echo ; \
\
if [ "$(GO_PKG_GO_GENERATE)" = 1 ]; then \
echo "Calling go generate" ; \
go generate -v $(1) $$$$targets ; \
echo ; \
fi ; \
\
if [ "$(GO_PKG_SOURCE_ONLY)" != 1 ]; then \
echo "Building targets" ; \
case $(GO_ARCH) in \
arm) installsuffix="-installsuffix v$(GO_ARM)" ;; \
mips|mipsle) installsuffix="-installsuffix $(GO_MIPS)" ;; \
mips64|mips64le) installsuffix="-installsuffix $(GO_MIPS64)" ;; \
esac ; \
trimpath="all=-trimpath=$(GO_PKG_BUILD_DIR)" ; \
ldflags="all=-linkmode external -extldflags '$(TARGET_LDFLAGS)'" ; \
go install \
$$$$installsuffix \
-gcflags "$$$$trimpath" \
-asmflags "$$$$trimpath" \
-ldflags "$$$$ldflags" \
-v \
$(1) \
$$$$targets ; \
retval=$$$$? ; \
echo ; \
\
if [ "$$$$retval" -eq 0 ] && [ -z "$(call GoPackage/has_binaries)" ]; then \
echo "No binaries were generated, consider adding GO_PKG_SOURCE_ONLY:=1 to Makefile" ; \
echo ; \
fi ; \
\
echo "Cleaning module download cache (golang/go#27455)" ; \
go clean -modcache ; \
echo ; \
fi ; \
exit $$$$retval ; \
)
endef
define GoPackage/Build/InstallDev
$(call GoPackage/Package/Install/Src,$(1))
endef
define GoPackage/Package/Install/Bin
if [ -n "$(call GoPackage/has_binaries)" ]; then \
$(INSTALL_DIR) $(1)/usr/bin ; \
$(INSTALL_BIN) $(GO_PKG_BUILD_BIN_DIR)/* $(1)/usr/bin/ ; \
fi
endef
define GoPackage/Package/Install/Src
dir=$$$$(dirname $(GO_PKG)) ; \
$(INSTALL_DIR) $(1)$(GO_PKG_PATH)/src/$$$$dir ; \
$(CP) $(GO_PKG_BUILD_DIR)/src/$(GO_PKG) $(1)$(GO_PKG_PATH)/src/$$$$dir/
endef
define GoPackage/Package/Install
$(call GoPackage/Package/Install/Bin,$(1))
$(call GoPackage/Package/Install/Src,$(1))
endef
ifneq ($(GO_PKG),)
Build/Configure=$(call GoPackage/Build/Configure)
Build/Compile=$(call GoPackage/Build/Compile)
Build/InstallDev=$(call GoPackage/Build/InstallDev,$(1))
endif
define GoPackage
ifndef Package/$(1)/install
Package/$(1)/install=$$(call GoPackage/Package/Install,$$(1))
endif
endef
define GoBinPackage
ifndef Package/$(1)/install
Package/$(1)/install=$$(call GoPackage/Package/Install/Bin,$$(1))
endif
endef
define GoSrcPackage
ifndef Package/$(1)/install
Package/$(1)/install=$$(call GoPackage/Package/Install/Src,$$(1))
endif
endef