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Anhad Singh 632716ada7 fix(Makefile): delay
I noticed a pretty significant delay (of ~5s on my machine) after
executing `make`.

This was because TARGET was currently defined as a recursively expanded
variable. This means that the command:

rustc -Z unstable-options --print target-spec-json | grep llvm-target | cut -d '"' -f4

..will get run everytime TARGET is mentioned. This patch fixes the above
by defining the variable as an immediately expanded value. This will
ensure the command only get run once and still skips if predefined.

Signed-off-by: Anhad Singh <andypython@protonmail.com>
2024-12-17 15:57:17 +11:00

259 lines
8.0 KiB
Makefile

ifndef TARGET
export TARGET:=$(shell rustc -Z unstable-options --print target-spec-json | grep llvm-target | cut -d '"' -f4)
endif
CARGO?=cargo
CARGO_TEST?=$(CARGO)
CARGO_COMMON_FLAGS=-Z build-std=core,alloc,compiler_builtins
CARGOFLAGS?=$(CARGO_COMMON_FLAGS)
RUSTCFLAGS?=
export OBJCOPY?=objcopy
BUILD?=$(shell pwd)/target/$(TARGET)
CARGOFLAGS+=--target=$(TARGET)
TARGET_HEADERS?=$(BUILD)/include
export CFLAGS=-I$(TARGET_HEADERS)
HEADERS_UNPARSED=$(shell find src/header -mindepth 1 -maxdepth 1 -type d -not -name "_*" -printf "%f\n")
HEADERS_DEPS=$(shell find src/header -type f \( -name "cbindgen.toml" -o -name "*.rs" \))
#HEADERS=$(patsubst %,%.h,$(subst _,/,$(HEADERS_UNPARSED)))
ifeq ($(TARGET),aarch64-unknown-linux-gnu)
export CC=aarch64-linux-gnu-gcc
export LD=aarch64-linux-gnu-ld
export AR=aarch64-linux-gnu-ar
export NM=aarch64-linux-gnu-nm
export OBJCOPY=aarch64-linux-gnu-objcopy
export CPPFLAGS=
endif
ifeq ($(TARGET),aarch64-unknown-redox)
export CC=aarch64-unknown-redox-gcc
export LD=aarch64-unknown-redox-ld
export AR=aarch64-unknown-redox-ar
export NM=aarch64-unknown-redox-nm
export OBJCOPY=aarch64-unknown-redox-objcopy
export CPPFLAGS=
endif
ifeq ($(TARGET),x86_64-unknown-linux-gnu)
export CC=x86_64-linux-gnu-gcc
export LD=x86_64-linux-gnu-ld
export AR=x86_64-linux-gnu-ar
export NM=x86_64-linux-gnu-nm
export OBJCOPY=x86_64-linux-gnu-objcopy
export CPPFLAGS=
endif
ifeq ($(TARGET),i686-unknown-redox)
export CC=i686-unknown-redox-gcc
export LD=i686-unknown-redox-ld
export AR=i686-unknown-redox-ar
export NM=i686-unknown-redox-nm
export OBJCOPY=i686-unknown-redox-objcopy
export CPPFLAGS=
endif
ifeq ($(TARGET),x86_64-unknown-redox)
export CC=x86_64-unknown-redox-gcc
export LD=x86_64-unknown-redox-ld
export AR=x86_64-unknown-redox-ar
export NM=x86_64-unknown-redox-nm
export OBJCOPY=x86_64-unknown-redox-objcopy
export CPPFLAGS=
endif
ifeq ($(TARGET),riscv64gc-unknown-redox)
export CC=riscv64-unknown-redox-gcc
export LD=riscv64-unknown-redox-ld
export AR=riscv64-unknown-redox-ar
export NM=riscv64-unknown-redox-nm
export OBJCOPY=riscv64-unknown-redox-objcopy
export CPPFLAGS=-march=rv64gc -mabi=lp64d
endif
SRC=\
Cargo.* \
$(shell find src -type f)
BUILTINS_VERSION=0.1.70
.PHONY: all clean fmt install install-libs install-headers install-tests libs headers submodules test
all: | headers libs
# TODO: can sed be removed now that cbindgen iirc supports varargs?
headers: $(HEADERS_DEPS)
rm -rf $(TARGET_HEADERS)
mkdir -pv $(TARGET_HEADERS)
cp -rv include/* $(TARGET_HEADERS)
cp -v "openlibm/include"/*.h $(TARGET_HEADERS)
cp -v "openlibm/src"/*.h $(TARGET_HEADERS)
set -e ; \
for header in $(HEADERS_UNPARSED); do \
echo "Header $$header"; \
if test -f "src/header/$$header/cbindgen.toml"; then \
out=`echo "$$header" | sed 's/_/\//g'`; \
out="$(TARGET_HEADERS)/$$out.h"; \
cat "src/header/$$header/cbindgen.toml" cbindgen.globdefs.toml \
| cbindgen "src/header/$$header/mod.rs" --config=/dev/stdin --output "$$out"; \
sed -i "s/va_list __valist/.../g" "$$out"; \
fi \
done
clean:
$(CARGO) clean
$(MAKE) -C tests clean
rm -rf sysroot
check:
$(CARGO) check
fmt:
./fmt.sh
install-headers: headers libs
mkdir -pv "$(DESTDIR)/include"
cp -rv "$(TARGET_HEADERS)"/* "$(DESTDIR)/include"
libs: \
$(BUILD)/release/libc.a \
$(BUILD)/release/libc.so \
$(BUILD)/release/crt0.o \
$(BUILD)/release/crti.o \
$(BUILD)/release/crtn.o \
$(BUILD)/release/ld_so
install-libs: headers libs
mkdir -pv "$(DESTDIR)/lib"
cp -v "$(BUILD)/release/libc.a" "$(DESTDIR)/lib"
cp -v "$(BUILD)/release/libc.so" "$(DESTDIR)/lib"
ln -vnfs libc.so "$(DESTDIR)/lib/libc.so.6"
cp -v "$(BUILD)/release/crt0.o" "$(DESTDIR)/lib"
ln -vnfs crt0.o "$(DESTDIR)/lib/crt1.o"
cp -v "$(BUILD)/release/crti.o" "$(DESTDIR)/lib"
cp -v "$(BUILD)/release/crtn.o" "$(DESTDIR)/lib"
cp -v "$(BUILD)/release/ld_so" "$(DESTDIR)/lib/ld64.so.1"
cp -v "$(BUILD)/openlibm/libopenlibm.a" "$(DESTDIR)/lib/libm.a"
# Empty libraries for dl, pthread, and rt
$(AR) -rcs "$(DESTDIR)/lib/libdl.a"
$(AR) -rcs "$(DESTDIR)/lib/libpthread.a"
$(AR) -rcs "$(DESTDIR)/lib/librt.a"
install-tests: tests
$(MAKE) -C tests
mkdir -p "$(DESTDIR)/bin/relibc-tests"
cp -vr tests/bins_static/* "$(DESTDIR)/bin/relibc-tests/"
install: install-headers install-libs
submodules:
git submodule sync
git submodule update --init --recursive
sysroot:
rm -rf $@
rm -rf $@.partial
mkdir -p $@.partial
$(MAKE) install DESTDIR=$@.partial
mv $@.partial $@
touch $@
test: sysroot
# TODO: Fix SIGILL when running cargo test
# $(CARGO_TEST) test
$(MAKE) -C tests run
$(MAKE) -C tests verify
# Debug targets
$(BUILD)/debug/libc.a: $(BUILD)/debug/librelibc.a $(BUILD)/openlibm/libopenlibm.a
echo "create $@" > "$@.mri"
for lib in $^; do\
echo "addlib $$lib" >> "$@.mri"; \
done
echo "save" >> "$@.mri"
echo "end" >> "$@.mri"
$(AR) -M < "$@.mri"
$(BUILD)/debug/libc.so: $(BUILD)/debug/librelibc.a $(BUILD)/openlibm/libopenlibm.a
$(CC) -nostdlib -shared -Wl,--allow-multiple-definition -Wl,--whole-archive $^ -Wl,--no-whole-archive -Wl,-soname,libc.so.6 -lgcc -o $@
$(BUILD)/debug/librelibc.a: $(SRC)
$(CARGO) rustc $(CARGOFLAGS) -- --emit link=$@ $(RUSTCFLAGS)
./renamesyms.sh "$@" "$(BUILD)/debug/deps/"
touch $@
$(BUILD)/debug/crt0.o: $(SRC)
$(CARGO) rustc --manifest-path src/crt0/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/debug/crti.o: $(SRC)
$(CARGO) rustc --manifest-path src/crti/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/debug/crtn.o: $(SRC)
$(CARGO) rustc --manifest-path src/crtn/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/debug/ld_so.o: $(SRC)
$(CARGO) rustc --manifest-path ld_so/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/debug/ld_so: $(BUILD)/debug/ld_so.o $(BUILD)/debug/crti.o $(BUILD)/debug/libc.a $(BUILD)/debug/crtn.o
$(LD) --no-relax -T ld_so/ld_script/$(TARGET).ld --allow-multiple-definition --gc-sections $^ -o $@
# Release targets
$(BUILD)/release/libc.a: $(BUILD)/release/librelibc.a $(BUILD)/openlibm/libopenlibm.a
echo "create $@" > "$@.mri"
for lib in $^; do\
echo "addlib $$lib" >> "$@.mri"; \
done
echo "save" >> "$@.mri"
echo "end" >> "$@.mri"
$(AR) -M < "$@.mri"
$(BUILD)/release/libc.so: $(BUILD)/release/librelibc.a $(BUILD)/openlibm/libopenlibm.a
$(CC) -nostdlib -shared -Wl,--allow-multiple-definition -Wl,--whole-archive $^ -Wl,--no-whole-archive -Wl,-soname,libc.so.6 -lgcc -o $@
$(BUILD)/release/librelibc.a: $(SRC)
$(CARGO) rustc --release $(CARGOFLAGS) -- --emit link=$@ $(RUSTCFLAGS)
# TODO: Better to only allow a certain whitelisted set of symbols? Perhaps
# use some cbindgen hook, specify them manually, or grep for #[no_mangle].
./renamesyms.sh "$@" "$(BUILD)/release/deps/"
touch $@
$(BUILD)/release/crt0.o: $(SRC)
$(CARGO) rustc --release --manifest-path src/crt0/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/release/crti.o: $(SRC)
$(CARGO) rustc --release --manifest-path src/crti/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/release/crtn.o: $(SRC)
$(CARGO) rustc --release --manifest-path src/crtn/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/release/ld_so.o: $(SRC)
$(CARGO) rustc --release --manifest-path ld_so/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
touch $@
$(BUILD)/release/ld_so: $(BUILD)/release/ld_so.o $(BUILD)/release/crti.o $(BUILD)/release/libc.a $(BUILD)/release/crtn.o
$(LD) --no-relax -T ld_so/ld_script/$(TARGET).ld --allow-multiple-definition --gc-sections $^ -o $@
# Other targets
$(BUILD)/openlibm: openlibm
rm -rf $@ $@.partial
mkdir -p $(BUILD)
cp -r $< $@.partial
mv $@.partial $@
touch $@
$(BUILD)/openlibm/libopenlibm.a: $(BUILD)/openlibm $(BUILD)/release/librelibc.a
$(MAKE) AR=$(AR) CC=$(CC) LD=$(LD) CPPFLAGS="$(CPPFLAGS) -fno-stack-protector -I$(shell pwd)/include -I$(TARGET_HEADERS)" -C $< libopenlibm.a
./renamesyms.sh "$@" "$(BUILD)/release/deps/"