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Diffstat (limited to '')
| -rw-r--r-- | platform.mk | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/platform.mk b/platform.mk new file mode 100644 index 0000000..5498fec --- /dev/null +++ b/platform.mk @@ -0,0 +1,230 @@ +# Platform-specific stuff +# Don't touch this unless you're changing the way targets are compiled +# You have been warned + +# Platform-dependent stuff checks +CCLD := $(CC) +CLANG_TIDY ?= clang-tidy -quiet +CGO := go tool cgo +GO := go +CAT := cat +SED := sed +LCOV := lcov +GENHTML := genhtml +LIBEXT := .so +AREXT := .a +LIBTYPE := shared +MODTYPE := shared +ARTYPE := static +BINEXT := +PLATFORM = Linux +ARCH := $(word 1, $(subst -, ,$(shell $(CC) -dumpmachine))) +# Library versioning flags (platform-specific) +comma := , +SOVER = $(if $(1),-Wl$(comma)-soname$(comma)$(3)$(call SOVER_EXT,$(1))) +# Library versioned extension (platform-specific) +SOVER_EXT = $(LIBEXT).$(1) +ifeq ($(OS),Windows_NT) + PLATFORM := Windows + RM := del + LN := link + LIBEXT := .lib + BINEXT := .exe +else + UNAME := $(shell uname -s) + ifeq ($(UNAME),Darwin) + PLATFORM := Darwin + LIBEXT := .dylib + MODTYPE := dynamiclib + LDFLAGS += -Wl,-export_dynamic + # OS X specific hardening since -pie doesn't work + ifneq ($(HARDENING),no) + BINFLAGS += -Wl,-pie + endif + # Version is prepended to dylib + SOVER_EXT = .$(1)$(LIBEXT) + SOVER = $(if $(1), -compatibility_version $(2) -current_version $(1),) + else + PLATFORM := POSIX + LDFLAGS += -pthread -lm -Wl,--export-dynamic + # ELF hardening options + ifneq ($(HARDENING),no) + BINFLAGS += -pie + LDFLAGS += -Wl,-z,relro,-z,now + endif + ifeq ($(UNAME),Linux) + LDFLAGS += -ldl + endif + ifeq (GCC,$(shell $(CC) --version | grep -q -i '\<gcc\>' && echo GCC)) + # Otherwise Fedora is making kresd symbols inaccessible for modules. + # Clang doesn't support this flag, so we hackily detect gcc. + BUILD_CFLAGS += -rdynamic + endif + endif +endif + +# Silent compilation +ifeq ($(V),1) + quiet = $($1) +else + quiet = @echo " $1 $2"; $($1) +endif + +# Make objects and depends (name) +define make_objs +$(1)_OBJ := $$($(1)_SOURCES:.c=.o) +$(1)_DEP := $$($(1)_SOURCES:.c=.d) +-include $$($(1)_DEP) +endef +define make_objrule +$(1): $(1:.o=.c) + $$(call quiet,CC,$$<) $(2) -MMD -MP -c $$< -o $$@ +endef + +# Make target (name,path,ext,ldflags, 5:dst,amalgable,abiver) +define make_target +ifeq ($(AMALG)|$(6), yes|yes) +$(1).amalg.c: $$($(1)_SOURCES) + $(call quiet,CAT,$$@) $$($(1)_SOURCES) > $$@ +# AR requires .o compiled +$(1)_OBJ := $(1).amalg.c +ifeq ($(4),-$(ARTYPE)) +$(1)_OBJ := $(1).amalg.o +endif +else +$$(eval $$(call make_objs,$(1))) +endif +# Rules to generate objects with custom CFLAGS and binary/library +$$(foreach obj,$$($(1)_OBJ),$$(eval $$(call make_objrule,$$(obj),$$(BUILD_CFLAGS) $$($(1)_CFLAGS)))) +$(1) := $(2)/$(1)$(3) +$(2)/$(1)$(3): $$($(1)_OBJ) $$($(1)_DEPEND) +ifeq ($(4),-$(ARTYPE)) + $(call quiet,AR,$$@) rcs $$@ $$($(1)_OBJ) +else +ifneq ($(strip $(7)),) + $(call quiet,CCLD,$$@) $$($(1)_CFLAGS) $(BUILD_CFLAGS) $$($(1)_OBJ) $(call SOVER,$(7),$(7),$(1)) -o $(2)/$(1)$(call SOVER_EXT,$(7)) $(4) $$($(1)_LIBS) $(BUILD_LDFLAGS) $$($(1)_LDFLAGS) + $(LN) -f $(1)$(call SOVER_EXT,$(7)) $$@ +else + $(call quiet,CCLD,$$@) $$($(1)_CFLAGS) $(BUILD_CFLAGS) $$($(1)_OBJ) $(call SOVER,$(7),$(7),$(1)) -o $$@ $(4) $$($(1)_LIBS) $(BUILD_LDFLAGS) $$($(1)_LDFLAGS) +endif +endif +# Linter rules +$(1)-lint: $$($(1)_SOURCES) + $(call quiet,CLANG_TIDY,$(1)) $$($(1)_SOURCES) -- $(BUILD_CFLAGS) $$($(1)_CFLAGS) -DMP_FREELIST_SIZE=0 -D__clang_analyzer__ +# Additional rules +$(1)-clean: + $(RM) $$($(1)_OBJ) $$($(1)_DEP) $(2)/$(1)$(3) +ifeq ($(6), yes) + $(RM) $(1).amalg.c $(1).amalg.o +endif +$(1)-install: $(2)/$(1)$(3) +# Modules install to special path +ifneq ($(5),$(MODULEDIR)) + $(INSTALL) -d $(DESTDIR)$(5) +endif +# Versioned library install +ifneq ($(strip $(7)),) + $(INSTALL) $(2)/$(1)$(call SOVER_EXT,$(7)) $(DESTDIR)$(5)/ + $(LN) -f $(1)$(call SOVER_EXT,$(7)) $(DESTDIR)$(5)/$(1)$(3) +else + $(INSTALL) $(2)/$(1)$(3) $(DESTDIR)$(5) +endif +ifneq ($$(strip $$($(1)_HEADERS)),) + $(INSTALL) -d $(DESTDIR)$(INCLUDEDIR)/$(1) + $(INSTALL) -m 644 $$($(1)_HEADERS) $(DESTDIR)$(INCLUDEDIR)/$(1) +endif +.PHONY: $(1)-clean $(1)-install +endef + +# Make targets (name,path,amalgable yes|no,abiver) +make_bin = $(call make_target,$(1),$(2),$(BINEXT),$(BINFLAGS),$(BINDIR),$(3)) +make_sbin = $(call make_target,$(1),$(2),$(BINEXT),$(BINFLAGS),$(SBINDIR),$(3)) +make_lib = $(call make_target,$(1),$(2),$(LIBEXT),-$(LIBTYPE),$(LIBDIR),$(3),$(4)) +make_module = $(call make_target,$(1),$(2),$(LIBEXT),-$(LIBTYPE),$(MODULEDIR),$(3)) +make_static = $(call make_target,$(1),$(2),$(AREXT),-$(ARTYPE),$(LIBDIR),$(3)) + +# Find library (pkg-config) +define find_lib + $(call find_alt,$(1),$(1),$(2)) +endef + +# Find library alternative (pkg-config) +define find_alt + ifeq ($$(strip $$($(1)_LIBS)),) + ifneq ($(strip $(3)),) + $(1)_VER := $(shell pkg-config --atleast-version=$(3) $(2) && echo $(3)) + endif + ifeq ($(strip $(3)),$$($(1)_VER)) + $(1)_CFLAGS := $(shell pkg-config --cflags $(2) --silence-errors) + $(1)_LIBS := $(shell pkg-config --libs $(2) --silence-errors) + endif + endif + ifeq ($$(strip $$($(1)_LIBS)),) + HAS_$(1) := no + else + HAS_$(1) := yes + endif +endef + +# Find binary +define find_bin + ifeq ($$(strip $$($(1)_BIN)),) + $(1)_BIN := $(shell which $(1)) + endif + ifeq ($$(strip $$($(1)_BIN)),) + HAS_$(1) := no + else + HAS_$(1) := yes + $(1) := $$($(1)_BIN) + endif +endef + +# Find version +define find_ver + ifeq ($(shell test $(2) -ge $(3); echo $$?),0) + HAS_$(1) := yes + else + HAS_$(1) := no + endif +endef + +# Find Go package +define find_gopkg + HAS_$(1) := $(shell go list $(2) > /dev/null 2>&1 && echo yes || echo no) +endef + +# Find Lua package +define find_luapkg + HAS_$(1) := $(shell luajit -l $(1) -e "os.exit(0)"> /dev/null 2>&1 && echo yes || echo no) +endef + +# Find Python package +define find_pythonpkg + HAS_$(1) := $(shell python3 -c "import $(1)" > /dev/null 2>&1 && echo yes || echo no) +endef + +define find_soname + +# N/A on Windows +ifeq ($(PLATFORM),Windows) + $(1)_SONAME = $(1).dll +endif + +# Use otool -D on OS X +ifeq ($(PLATFORM),Darwin) + $(1)_SONAME = $$(shell otool -D $$$$(pkg-config --variable=libdir $(1))/$(1)$(LIBEXT) | sed -ne 's,.*/\($(1)\.[0-9]*.$(LIBEXT)\),\1,p') +endif + +# Use objdump -p on Linux and BSDs +ifeq ($(PLATFORM),POSIX) +ifeq ($(UNAME),OpenBSD) + $(1)_SONAME = $$(shell basename $$$$(readlink -f $$$$(pkg-config --variable=libdir $(1))/$(1)$(LIBEXT)) | cut -f 1-3 -d .) +else + $(1)_SONAME = $$(shell objdump -p $$$$(pkg-config --variable=libdir $(1))/$(1)$(LIBEXT) | sed -ne 's/[[:space:]]*SONAME[[:space:]]*\($(1)\.so\.[0-4]*\)/\1/p') +endif +endif + +endef # find_soname + +# Use this on OpenBSD +# |