size-optimize sh/fdpic dynamic entry point

[musl] / Makefile

diff --git a/Makefile b/Makefile
index 2eb7b30..5a6a43b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -51,6 +51,9 @@ 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
@@ -116,11 +119,19 @@ $(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.$(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 $@ $<
@@ -129,7 +140,7 @@ $(foreach s,$(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 $@ $<
@@ -155,7 +166,11 @@ 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/%
@@ -188,6 +203,4 @@ 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