OBJS = $(SRCS:.c=.o)
LOBJS = $(OBJS:.o=.lo)
GENH = include/bits/alltypes.h
+GENH_INT = src/internal/version.h
IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h
-LDFLAGS =
+LDFLAGS =
+LDFLAGS_AUTO =
LIBCC = -lgcc
CPPFLAGS =
-CFLAGS = -Os -pipe
+CFLAGS =
+CFLAGS_AUTO = -Os -pipe
CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc
CFLAGS_ALL = $(CFLAGS_C99FSE)
CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include
-CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS)
+CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS_AUTO) $(CFLAGS)
CFLAGS_ALL_STATIC = $(CFLAGS_ALL)
CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED
+LDFLAGS_ALL = $(LDFLAGS_AUTO) $(LDFLAGS)
+
AR = $(CROSS_COMPILE)ar
RANLIB = $(CROSS_COMPILE)ranlib
+INSTALL = ./tools/install.sh
ARCH_INCLUDES = $(wildcard arch/$(ARCH)/bits/*.h)
ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLUDES:arch/$(ARCH)/%=include/%))
EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
-CRT_LIBS = lib/crt1.o lib/Scrt1.o lib/crti.o lib/crtn.o
+CRT_LIBS = lib/crt1.o lib/Scrt1.o lib/rcrt1.o lib/crti.o lib/crtn.o
STATIC_LIBS = lib/libc.a
SHARED_LIBS = lib/libc.so
TOOL_LIBS = lib/musl-gcc.specs
ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
ALL_TOOLS = tools/musl-gcc
+WRAPCC_GCC = gcc
+WRAPCC_CLANG = clang
+
LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH)$(SUBARCH).so.1
-include config.mak
rm -f $(LOBJS)
rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
rm -f $(ALL_TOOLS)
- rm -f $(GENH)
+ rm -f $(GENH) $(GENH_INT)
rm -f include/bits
distclean: clean
include/bits/alltypes.h: include/bits/alltypes.h.in include/alltypes.h.in tools/mkalltypes.sed
sed -f tools/mkalltypes.sed include/bits/alltypes.h.in include/alltypes.h.in > $@
-src/ldso/dynlink.lo: arch/$(ARCH)/reloc.h
+src/internal/version.h: $(wildcard VERSION .git)
+ printf '#define VERSION "%s"\n' "$$(sh tools/version.sh)" > $@
+
+src/internal/version.o src/internal/version.lo: src/internal/version.h
+
+crt/rcrt1.o src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch/$(ARCH)/reloc.h
+
+crt/crt1.o crt/Scrt1.o crt/rcrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/crt_arch.h)
+
+crt/rcrt1.o: src/ldso/dlstart.c
+
+crt/Scrt1.o crt/rcrt1.o: CFLAGS_ALL += -fPIC
OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%))
$(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3
+MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c
+$(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS)
+
+NOSSP_SRCS = $(wildcard crt/*.c) \
+ src/env/__libc_start_main.c src/env/__init_tls.c \
+ src/thread/__set_thread_area.c src/env/__stack_chk_fail.c \
+ src/string/memset.c src/string/memcpy.c \
+ src/ldso/dlstart.c src/ldso/dynlink.c
+$(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP)
+
+$(CRT_LIBS:lib/%=crt/%): CFLAGS_ALL += -DCRT
+
+# This incantation ensures that changes to any subarch asm files will
+# force the corresponding object file to be rebuilt, even if the implicit
+# rule below goes indirectly through a .sub file.
+define mkasmdep
+$(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1:.s=.o)): $(1)
+endef
+$(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
+
+# Choose invocation of assembler to be used
+# $(1) is input file, $(2) is output file, $(3) is assembler flags
+ifeq ($(ADD_CFI),yes)
+ AS_CMD = LC_ALL=C awk -f tools/add-cfi.common.awk -f tools/add-cfi.$(ARCH).awk $< | $(CC) -x assembler -c -o $@ -
+else
+ AS_CMD = $(CC) -c -o $@ $<
+endif
+
+%.o: $(ARCH)$(ASMSUBARCH)/%.sub
+ $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<)
+
%.o: $(ARCH)/%.s
- $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
+ $(AS_CMD) $(CFLAGS_ALL_STATIC)
%.o: %.c $(GENH) $(IMPH)
$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
+%.lo: $(ARCH)$(ASMSUBARCH)/%.sub
+ $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $(dir $<)$(shell cat $<)
+
%.lo: $(ARCH)/%.s
- $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
+ $(AS_CMD) $(CFLAGS_ALL_SHARED)
%.lo: %.c $(GENH) $(IMPH)
$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
lib/libc.so: $(LOBJS)
- $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \
- -Wl,-e,_start -Wl,-Bsymbolic-functions \
+ $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS_ALL) -nostdlib -shared \
+ -Wl,-e,_dlstart -Wl,-Bsymbolic-functions \
-o $@ $(LOBJS) $(LIBCC)
lib/libc.a: $(OBJS)
sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
tools/musl-gcc: config.mak
- printf '#!/bin/sh\nexec "$${REALGCC:-gcc}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
+ printf '#!/bin/sh\nexec "$${REALGCC:-$(WRAPCC_GCC)}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
+ chmod +x $@
+
+tools/%-clang: tools/%-clang.in config.mak
+ sed -e 's!@CC@!$(WRAPCC_CLANG)!g' -e 's!@PREFIX@!$(prefix)!g' -e 's!@INCDIR@!$(includedir)!g' -e 's!@LIBDIR@!$(libdir)!g' -e 's!@LDSO@!$(LDSO_PATHNAME)!g' $< > $@
chmod +x $@
$(DESTDIR)$(bindir)/%: tools/%
- install -D $< $@
+ $(INSTALL) -D $< $@
$(DESTDIR)$(libdir)/%.so: lib/%.so
- install -D -m 755 $< $@
+ $(INSTALL) -D -m 755 $< $@
$(DESTDIR)$(libdir)/%: lib/%
- install -D -m 644 $< $@
+ $(INSTALL) -D -m 644 $< $@
$(DESTDIR)$(includedir)/bits/%: arch/$(ARCH)/bits/%
- install -D -m 644 $< $@
+ $(INSTALL) -D -m 644 $< $@
$(DESTDIR)$(includedir)/%: include/%
- install -D -m 644 $< $@
-
-$(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(syslibdir)
- ln -sf $(libdir)/libc.so $@ || true
+ $(INSTALL) -D -m 644 $< $@
-$(DESTDIR)$(syslibdir):
- install -d -m 755 $(DESTDIR)$(syslibdir)
+$(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so
+ $(INSTALL) -D -l $(libdir)/libc.so $@ || true
install-libs: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),)
install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
+musl-git-%.tar.gz: .git
+ git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $(patsubst musl-git-%.tar.gz,%,$@)
-
-.PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
+musl-%.tar.gz: .git
+ git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
.PHONY: all clean install install-libs install-headers install-tools
projects / musl / blobdiff