Fork of Relibc
anders.sorby.xyz
1ifndef TARGET
2 export TARGET:=$(shell rustc -Z unstable-options --print target-spec-json | grep llvm-target | cut -d '"' -f4)
3endif
4
5CARGO?=cargo
6CARGO_TEST?=$(CARGO)
7CARGO_COMMON_FLAGS=-Z build-std=core,alloc,compiler_builtins
8CARGOFLAGS?=$(CARGO_COMMON_FLAGS)
9CC_WRAPPER?=
10RUSTCFLAGS?=
11export OBJCOPY?=objcopy
12
13export CARGO_TARGET_DIR?=$(shell pwd)/target
14BUILD?=$(CARGO_TARGET_DIR)/$(TARGET)
15CARGOFLAGS+=--target=$(TARGET)
16
17TARGET_HEADERS?=$(BUILD)/include
18export CFLAGS=-I$(TARGET_HEADERS)
19
20PROFILE?=release
21
22HEADERS_UNPARSED=$(shell find src/header -mindepth 1 -maxdepth 1 -type d -not -name "_*" -printf "%f\n")
23HEADERS_DEPS=$(shell find src/header -type f \( -name "cbindgen.toml" -o -name "*.rs" \))
24#HEADERS=$(patsubst %,%.h,$(subst _,/,$(HEADERS_UNPARSED)))
25
26ifeq ($(TARGET),aarch64-unknown-linux-gnu)
27 export CC=aarch64-linux-gnu-gcc
28 export LD=aarch64-linux-gnu-ld
29 export AR=aarch64-linux-gnu-ar
30 export NM=aarch64-linux-gnu-nm
31 export OBJCOPY=aarch64-linux-gnu-objcopy
32 export CPPFLAGS=
33 LD_SO_PATH=lib/ld.so.1
34endif
35
36ifeq ($(TARGET),aarch64-unknown-redox)
37 export CC=aarch64-unknown-redox-gcc
38 export LD=aarch64-unknown-redox-ld
39 export AR=aarch64-unknown-redox-ar
40 export NM=aarch64-unknown-redox-nm
41 export OBJCOPY=aarch64-unknown-redox-objcopy
42 export CPPFLAGS=
43 LD_SO_PATH=lib/ld.so.1
44endif
45
46ifeq ($(TARGET),i686-unknown-redox)
47 export CC=i686-unknown-redox-gcc
48 export LD=i686-unknown-redox-ld
49 export AR=i686-unknown-redox-ar
50 export NM=i686-unknown-redox-nm
51 export OBJCOPY=i686-unknown-redox-objcopy
52 export CPPFLAGS=
53 LD_SO_PATH=lib/libc.so.1
54endif
55
56ifeq ($(TARGET),x86_64-unknown-linux-gnu)
57 export CC=x86_64-linux-gnu-gcc
58 export LD=x86_64-linux-gnu-ld
59 export AR=x86_64-linux-gnu-ar
60 export NM=x86_64-linux-gnu-nm
61 export OBJCOPY=objcopy
62 export CPPFLAGS=
63 LD_SO_PATH=lib/ld64.so.1
64endif
65
66ifeq ($(TARGET),x86_64-unknown-redox)
67 export CC=x86_64-unknown-redox-gcc
68 export LD=x86_64-unknown-redox-ld
69 export AR=x86_64-unknown-redox-ar
70 export NM=x86_64-unknown-redox-nm
71 export OBJCOPY=x86_64-unknown-redox-objcopy
72 export CPPFLAGS=
73 LD_SO_PATH=lib/ld64.so.1
74endif
75
76ifeq ($(TARGET),riscv64gc-unknown-redox)
77 export CC=riscv64-unknown-redox-gcc
78 export LD=riscv64-unknown-redox-ld
79 export AR=riscv64-unknown-redox-ar
80 export NM=riscv64-unknown-redox-nm
81 export OBJCOPY=riscv64-unknown-redox-objcopy
82 export CPPFLAGS=-march=rv64gc -mabi=lp64d
83 LD_SO_PATH=lib/ld.so.1
84endif
85
86SRC=\
87 Cargo.* \
88 $(shell find src -type f)
89
90BUILTINS_VERSION=0.1.70
91
92.PHONY: all clean fmt install install-libs install-headers install-tests libs headers submodules test
93
94all: | headers libs
95
96headers: $(HEADERS_DEPS)
97 rm -rf $(TARGET_HEADERS)
98 mkdir -pv $(TARGET_HEADERS)
99 cp -rv include/* $(TARGET_HEADERS)
100 cp -v "openlibm/include"/*.h $(TARGET_HEADERS)
101 cp -v "openlibm/src"/*.h $(TARGET_HEADERS)
102 set -e ; \
103 for header in $(HEADERS_UNPARSED); do \
104 echo "Header $$header"; \
105 if test -f "src/header/$$header/cbindgen.toml"; then \
106 out=`echo "$$header" | sed 's/_/\//g'`; \
107 out="$(TARGET_HEADERS)/$$out.h"; \
108 cat "src/header/$$header/cbindgen.toml" cbindgen.globdefs.toml \
109 | cbindgen "src/header/$$header/mod.rs" --config=/dev/stdin --output "$$out"; \
110 fi \
111 done
112
113clean:
114 $(CARGO) clean
115 $(MAKE) -C tests clean
116 rm -rf sysroot
117
118check:
119 $(CARGO) check
120
121fmt:
122 ./fmt.sh
123
124install-headers: headers libs
125 mkdir -pv "$(DESTDIR)/include"
126 cp -rv "$(TARGET_HEADERS)"/* "$(DESTDIR)/include"
127
128libs: \
129 $(BUILD)/$(PROFILE)/libc.a \
130 $(BUILD)/$(PROFILE)/libc.so \
131 $(BUILD)/$(PROFILE)/crt0.o \
132 $(BUILD)/$(PROFILE)/crti.o \
133 $(BUILD)/$(PROFILE)/crtn.o \
134 $(BUILD)/$(PROFILE)/ld_so
135
136install-libs: headers libs
137 mkdir -pv "$(DESTDIR)/lib"
138 cp -v "$(BUILD)/$(PROFILE)/libc.a" "$(DESTDIR)/lib"
139 cp -v "$(BUILD)/$(PROFILE)/libc.so" "$(DESTDIR)/lib"
140 ln -vnfs libc.so "$(DESTDIR)/lib/libc.so.6"
141 cp -v "$(BUILD)/$(PROFILE)/crt0.o" "$(DESTDIR)/lib"
142 ln -vnfs crt0.o "$(DESTDIR)/lib/crt1.o"
143 cp -v "$(BUILD)/$(PROFILE)/crti.o" "$(DESTDIR)/lib"
144 cp -v "$(BUILD)/$(PROFILE)/crtn.o" "$(DESTDIR)/lib"
145 cp -v "$(BUILD)/$(PROFILE)/ld_so" "$(DESTDIR)/$(LD_SO_PATH)"
146 cp -v "$(BUILD)/openlibm/libopenlibm.a" "$(DESTDIR)/lib/libm.a"
147 # Empty libraries for dl, pthread, and rt
148 $(AR) -rcs "$(DESTDIR)/lib/libdl.a"
149 $(AR) -rcs "$(DESTDIR)/lib/libpthread.a"
150 $(AR) -rcs "$(DESTDIR)/lib/librt.a"
151
152install-tests: tests
153 $(MAKE) -C tests
154 mkdir -p "$(DESTDIR)/bin/relibc-tests"
155 cp -vr tests/bins_static/* "$(DESTDIR)/bin/relibc-tests/"
156
157install: install-headers install-libs
158
159submodules:
160 git submodule sync
161 git submodule update --init --recursive
162
163sysroot:
164 rm -rf $@
165 rm -rf $@.partial
166 mkdir -p $@.partial
167 $(MAKE) install DESTDIR=$@.partial
168 mv $@.partial $@
169 touch $@
170
171test: sysroot
172 # TODO: Fix SIGILL when running cargo test
173 # $(CARGO_TEST) test
174 $(MAKE) -C tests run
175 $(MAKE) -C tests verify
176
177
178$(BUILD)/$(PROFILE)/libc.so: $(BUILD)/$(PROFILE)/librelibc.a $(BUILD)/openlibm/libopenlibm.a
179 $(CC) -nostdlib \
180 -shared \
181 -Wl,--gc-sections \
182 -Wl,-z,pack-relative-relocs \
183 -Wl,--sort-common \
184 -Wl,--allow-multiple-definition \
185 -Wl,--whole-archive $^ -Wl,--no-whole-archive \
186 -Wl,-soname,libc.so.6 \
187 -lgcc \
188 -o $@
189
190# Debug targets
191
192$(BUILD)/debug/libc.a: $(BUILD)/debug/librelibc.a $(BUILD)/openlibm/libopenlibm.a
193 echo "create $@" > "$@.mri"
194 for lib in $^; do\
195 echo "addlib $$lib" >> "$@.mri"; \
196 done
197 echo "save" >> "$@.mri"
198 echo "end" >> "$@.mri"
199 $(AR) -M < "$@.mri"
200
201$(BUILD)/debug/librelibc.a: $(SRC)
202 $(CARGO) rustc $(CARGOFLAGS) -- --emit link=$@ -g -C debug-assertions=no $(RUSTCFLAGS)
203 ./renamesyms.sh "$@" "$(BUILD)/debug/deps/"
204 ./stripcore.sh "$@"
205 touch $@
206
207$(BUILD)/debug/crt0.o: $(SRC)
208 $(CARGO) rustc --manifest-path src/crt0/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
209 touch $@
210
211$(BUILD)/debug/crti.o: $(SRC)
212 $(CARGO) rustc --manifest-path src/crti/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
213 touch $@
214
215$(BUILD)/debug/crtn.o: $(SRC)
216 $(CARGO) rustc --manifest-path src/crtn/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
217 touch $@
218
219$(BUILD)/debug/ld_so.o: $(SRC)
220 $(CARGO) rustc --manifest-path ld_so/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort -g -C debug-assertions=no $(RUSTCFLAGS)
221 touch $@
222
223$(BUILD)/debug/ld_so: $(BUILD)/debug/ld_so.o $(BUILD)/debug/crti.o $(BUILD)/debug/libc.a $(BUILD)/debug/crtn.o
224 $(LD) --no-relax -T ld_so/ld_script/$(TARGET).ld --allow-multiple-definition --gc-sections $^ -o $@
225
226# Release targets
227
228$(BUILD)/release/libc.a: $(BUILD)/release/librelibc.a $(BUILD)/openlibm/libopenlibm.a
229 echo "create $@" > "$@.mri"
230 for lib in $^; do\
231 echo "addlib $$lib" >> "$@.mri"; \
232 done
233 echo "save" >> "$@.mri"
234 echo "end" >> "$@.mri"
235 $(AR) -M < "$@.mri"
236
237$(BUILD)/release/librelibc.a: $(SRC)
238 $(CARGO) rustc --release $(CARGOFLAGS) -- --emit link=$@ $(RUSTCFLAGS)
239 # TODO: Better to only allow a certain whitelisted set of symbols? Perhaps
240 # use some cbindgen hook, specify them manually, or grep for #[unsafe(no_mangle)].
241 ./renamesyms.sh "$@" "$(BUILD)/release/deps/"
242 ./stripcore.sh "$@"
243 touch $@
244
245$(BUILD)/release/crt0.o: $(SRC)
246 $(CARGO) rustc --release --manifest-path src/crt0/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
247 touch $@
248
249$(BUILD)/release/crti.o: $(SRC)
250 $(CARGO) rustc --release --manifest-path src/crti/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
251 touch $@
252
253$(BUILD)/release/crtn.o: $(SRC)
254 $(CARGO) rustc --release --manifest-path src/crtn/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
255 touch $@
256
257$(BUILD)/release/ld_so.o: $(SRC)
258 $(CARGO) rustc --release --manifest-path ld_so/Cargo.toml $(CARGOFLAGS) -- --emit obj=$@ -C panic=abort $(RUSTCFLAGS)
259 touch $@
260
261$(BUILD)/release/ld_so: $(BUILD)/release/ld_so.o $(BUILD)/release/crti.o $(BUILD)/release/libc.a $(BUILD)/release/crtn.o
262 $(LD) --no-relax -T ld_so/ld_script/$(TARGET).ld --allow-multiple-definition --gc-sections $^ -o $@
263
264# Other targets
265
266$(BUILD)/openlibm: openlibm
267 rm -rf $@ $@.partial
268 mkdir -p $(BUILD)
269 cp -r $< $@.partial
270 mv $@.partial $@
271 touch $@
272
273$(BUILD)/openlibm/libopenlibm.a: $(BUILD)/openlibm $(BUILD)/release/librelibc.a
274 $(MAKE) AR=$(AR) CC="$(CC_WRAPPER) $(CC)" LD=$(LD) CPPFLAGS="$(CPPFLAGS) -fno-stack-protector -I$(shell pwd)/include -I$(TARGET_HEADERS)" -C $< libopenlibm.a
275 ./renamesyms.sh "$@" "$(BUILD)/release/deps/"