X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=Makefile;h=df20f94a5c7129c34e92acf57310497eeedff9d7;hb=d5f8394f6ea9549607567bd92de12a2446c15614;hp=02b44f8e54295909b41cc5175d7563826a4b34d3;hpb=f3ddd173806fd5c60b3f034528ca24542aecc5b9;p=musl

diff --git a/Makefile b/Makefile
index 02b44f8e..df20f94a 100644
--- a/Makefile
+++ b/Makefile
@@ -23,18 +23,22 @@ 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
@@ -44,13 +48,16 @@ ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLU
 
 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
@@ -83,19 +90,30 @@ include/bits/alltypes.h: include/bits/alltypes.h.in include/alltypes.h.in tools/
 src/internal/version.h: $(wildcard VERSION .git)
 	printf '#define VERSION "%s"\n' "$$(sh tools/version.sh)" > $@
 
-src/internal/version.lo: src/internal/version.h
+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
 
-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/crt1.o crt/Scrt1.o: $(wildcard arch/$(ARCH)/crt_arch.h)
+crt/rcrt1.o: src/ldso/dlstart.c
 
-crt/Scrt1.o: CFLAGS += -fPIC
+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 += $(CFLAGS_MEMOPS)
+$(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
@@ -105,11 +123,19 @@ $(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 $@ $<
@@ -118,13 +144,13 @@ $(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
 	$(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 \
+	$(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS_ALL) -nostdlib -shared \
 	-Wl,-e,_dlstart -Wl,-Bsymbolic-functions \
 	-o $@ $(LOBJS) $(LIBCC)
 
@@ -144,7 +170,11 @@ lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
 	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/%
@@ -177,6 +207,4 @@ musl-git-%.tar.gz: .git
 musl-%.tar.gz: .git
 	 git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
 
-.PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
-
 .PHONY: all clean install install-libs install-headers install-tools