simplify conditional logic with constructed macro names
based on https://make.mad-scientist.net/constructed-macro-names/
This commit is contained in:
Vinzenz Schroeter
parent
e7426bdabe
commit
2d937b9c3c
151
example/Makefile
151
example/Makefile
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@ -1,98 +1,89 @@
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CARGO ?= cargo
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STRIP ?= strip
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CC ?= gcc
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FEATURES := "env_logger"
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RUST_ARCH ?= x86_64
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FEATURES := ""#"env_logger"
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THIS_DIR := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
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REPO_ROOT := $(realpath $(THIS_DIR)/..)
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export SERVICEPOINT_HEADER_OUT := $(REPO_ROOT)/include
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override CFG_MUSL := $(if $(CFG_MUSL),$(CFG_MUSL),$(if $(MUSL),$(MUSL),0))
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override CFG_PROFILE := $(if $(CFG_PROFILE),$(CFG_PROFILE),$(if $(PROFILE),$(PROFILE),release))
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# TODO: check if override is needed
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override _libc := $(if $(MUSL),musl,gnu)
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override _profile := $(if $(PROFILE),$(PROFILE),release)
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override _rust_cli_profile := $(if $(filter $(_profile),debug),dev,$(_profile))
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override _link_type := $(if $(LINK),$(LINK),dynamic)
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CCFLAGS += -Wall -Wextra -pedantic -fwhole-program -fPIE -pie
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# TODO: make LINK=static fails with linker error "undefined reference to `_dl_find_object'" in libgcc_eh.a
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STRIPFLAGS := -s --strip-unneeded -R .comment -R .gnu.version -R .note -R .note.gnu.build-id -R .note.ABI-tag
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#ifeq ($(CFG_PROFILE), size-optimized)
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# CCFLAGS += -nodefaultlibs -lc
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#endif
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STATIC_LINK_LIBS := -lservicepoint_binding_c
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ifeq ($(CFG_PROFILE), size-optimized)
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CARGO_PROFILE := size-optimized
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CCFLAGS += -Oz \
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-fwrapv -fomit-frame-pointer -fno-stack-protector\
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-fno-unroll-loops \
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-fno-unwind-tables -fno-asynchronous-unwind-tables \
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-fmerge-all-constants \
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-Wl,-z,norelro \
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-Wl,--hash-style=gnu \
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-fvisibility=hidden \
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-Bsymbolic \
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-Wl,--exclude-libs,ALL \
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-fno-ident \
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-fno-exceptions
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CARGOFLAGS += -Zbuild-std="core,std,alloc,proc_macro,panic_abort" \
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-Zbuild-std-features="panic_immediate_abort"
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RUSTFLAGS += -Zlocation-detail=none \
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-Zfmt-debug=none \
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-C link-arg=-z,norelro \
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-C panic=abort
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#-C link-arg=--hash-style=gnu
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else
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FEATURES := $(FEATURES),all_compressions
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STATIC_LINK_LIBS += -llzma
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ifeq ($(CFG_PROFILE), release)
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CARGO_PROFILE := release
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CCFLAGS += -O2
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else ifeq ($(CFG_PROFILE), debug)
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CCFLAGS += -Og
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CARGO_PROFILE := dev
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else
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CFG_PROFILE := $(error "PROFILE has to be set to one of: debug, release, size-optimized")
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endif
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_all_profiles := release debug size-optimized
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ifeq (,$(filter $(_all_profiles),$(_profile)))
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_profile := $(error "PROFILE has to be set to one of: debug, release, size-optimized")
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endif
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STRIPFLAGS += -s --strip-unneeded -R .comment -R .gnu.version -R .note -R .note.gnu.build-id -R .note.ABI-tag
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STATIC_LINK_LIBS += -lservicepoint_binding_c
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ifeq ($(CFG_MUSL), 1)
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TARGET ?= x86_64-unknown-linux-musl
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CC ?= musl-gcc
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CCFLAGS += -static $(STATIC_LINK_LIBS)
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RUSTFLAGS += --crate-type=staticlib -Ctarget-feature=-crt-static
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else
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TARGET ?= x86_64-unknown-linux-gnu
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CC ?= gcc
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#CCFLAGS += -shared
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CCFLAGS += -Wl,-Bstatic $(STATIC_LINK_LIBS) -Wl,-Bdynamic
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endif
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RUST_TARGET := $(RUST_ARCH)-unknown-linux-$(_libc)
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size-optimized_CARGOFLAGS += -Zbuild-std="core,std,alloc,proc_macro,panic_abort" \
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-Zbuild-std-features="panic_immediate_abort"
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CARGOFLAGS += --manifest-path=$(REPO_ROOT)/Cargo.toml \
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--profile=$(CARGO_PROFILE) \
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--profile=$(_rust_cli_profile) \
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--no-default-features \
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--features=$(FEATURES) \
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--target=$(TARGET)
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--target=$(RUST_TARGET) \
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$($(_profile)_CARGOFLAGS)
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ifneq ($(CFG_PROFILE), debug)
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CCFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections
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CFLAGS += -Wall -Wextra -pedantic -fwhole-program -fPIE -pie
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_no_debug_cflags := -ffunction-sections -fdata-sections -Wl,--gc-sections
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size-optimized_CFLAGS += -Oz \
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-fwrapv -fomit-frame-pointer -fno-stack-protector\
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-fno-unroll-loops \
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-fno-unwind-tables -fno-asynchronous-unwind-tables \
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-fmerge-all-constants \
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-Wl,-z,norelro \
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-Wl,--hash-style=gnu \
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-fvisibility=hidden \
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-Bsymbolic \
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-Wl,--exclude-libs,ALL \
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-fno-ident \
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-fno-exceptions \
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$(_no_debug_cflags)
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release_CFLAGS += -O2 \
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$(_no_debug_cflags)
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debug_CFLAGS += -Og
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static_CFLAGS += -static $(STATIC_LINK_LIBS)
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dynamic_CFLAGS += -Wl,-Bstatic $(STATIC_LINK_LIBS) -Wl,-Bdynamic
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size-optimized_RUSTFLAGS += -Zlocation-detail=none \
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-Zfmt-debug=none \
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-C link-arg=-z,norelro \
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-C panic=abort
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#-C link-arg=--hash-style=gnu
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musl_RUSTFLAGS += --crate-type=staticlib -Ctarget-feature=-crt-static
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RUSTFLAGS += $($(_libc)_RUSTFLAGS) $($(_profile)_RUSTFLAGS) $($(_link_type)_RUSTFLAGS)
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ifneq ($(_profile), debug)
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RUSTFLAGS += -C link-arg=-s -C link-arg=-Wl,--gc-sections
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endif
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CFLAGS += $($(_libc)_CFLAGS) $($(_profile)_CFLAGS) $($(_link_type)_CFLAGS)
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ifeq ($(LTO), 1)
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CCFLAGS += -flto
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CFLAGS += -flto
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endif
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RUST_TARGET_DIR := $(REPO_ROOT)/target/$(TARGET)/$(CFG_PROFILE)
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RUST_TARGET_DIR := $(REPO_ROOT)/target/$(RUST_TARGET)/$(_profile)
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_c_src := $(wildcard ./src/*.c)
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_programs := $(basename $(notdir $(_c_src)))
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_bins := $(addprefix out/, $(_programs))
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_unstripped_bins := $(addsuffix _unstripped, $(_bins))
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_run_programs := $(addprefix run_, $(_programs))
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_rs_src := $(wildcard ../src/**.rs) ../Cargo.lock ../Cargo.toml ../cbindgen.toml
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_sp_artifacts := $(SERVICEPOINT_HEADER_OUT)/servicepoint.h $(RUST_TARGET_DIR)/libservicepoint_binding_c.a $(RUST_TARGET_DIR)/libservicepoint_binding_c.so
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# TODO: use cargo --target-dir to put rust binaries into same dir
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all: $(_bins)
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@ -105,33 +96,33 @@ clean-rust:
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rm $(SERVICEPOINT_HEADER_OUT)/servicepoint.h || true
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cargo clean
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.PHONY: all clean sizes $(_run_programs) clean-c clean-rust
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.PHONY: all clean sizes $(_run_programs) clean-c clean-rust build-rust help FORCE
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$(_unstripped_bins): out/%_unstripped: src/%.c $(SERVICEPOINT_HEADER_OUT)/servicepoint.h src/helpers.h $(_sp_artifacts)
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$(_unstripped_bins): out/%_unstripped: src/%.c src/helpers.h build-rust
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mkdir -p out || true
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$(CC) $< \
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-I $(SERVICEPOINT_HEADER_OUT) \
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-L $(RUST_TARGET_DIR) \
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$(CCFLAGS) \
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$(CFLAGS) \
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-o $@
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$(_bins): out/%: out/%_unstripped
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$(STRIP) $(STRIPFLAGS) $^ -o $@
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$(_sp_artifacts): $(_rs_src)
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build-rust: FORCE
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mkdir -p $(SERVICEPOINT_HEADER_OUT) || true
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# generate servicepoint header and library to link against
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$(CARGO) rustc $(CARGOFLAGS) -- $(RUSTFLAGS)
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$(_run_programs): run_%: out/% FORCE
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./$<
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sizes: $(_bins)
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ls -lB out
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analyze-size: out/$(BIN)_unstripped
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nm --print-size --size-sort --reverse-sort --radix=d --demangle out/$(BIN)_unstripped \
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| awk '{size=$$2+0; print size "\t" $$4}' \
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| less
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FORCE: ;
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help:
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@echo "You have the choice of the following parameters:"
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@echo ""
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@echo "Variable | Description | Default | Values"
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@echo "---------+-----------------------------------+-----------+---------------------------"
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@echo "CARGO | which cargo binary to use | 'cargo' | 'rustup run nightly cargo'"
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@echo "CC | which C compiler to use | 'gcc' | 'musl-gcc'"
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@echo "STRIP | which strip command to use | 'strip' | -"
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@echo "MUSL | if set, use musl instead of glibc | unset | '1'"
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@echo "PROFILE | Compilation profile | 'release' | 'debug' or 'size-optimized'"
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@ -16,7 +16,7 @@ void handle_error(const char *msg) {
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}
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int main(int argc, char **argv) {
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init_env_logger();
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//init_env_logger();
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int udp_socket = socket(AF_INET, SOCK_DGRAM, 0);
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if (udp_socket == -1)
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@ -2,11 +2,11 @@
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"nodes": {
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"nixpkgs": {
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"locked": {
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"lastModified": 1747862697,
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"narHash": "sha256-U4HaNZ1W26cbOVm0Eb5OdGSnfQVWQKbLSPrSSa78KC0=",
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"lastModified": 1748037224,
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"narHash": "sha256-92vihpZr6dwEMV6g98M5kHZIttrWahb9iRPBm1atcPk=",
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"owner": "nixos",
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"repo": "nixpkgs",
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"rev": "2baa12ff69913392faf0ace833bc54bba297ea95",
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"rev": "f09dede81861f3a83f7f06641ead34f02f37597f",
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"type": "github"
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},
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"original": {
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