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remove support for subarch .sub files from the makefile

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as of commit af21a82ccc8687aa16e85def7db95efeae4cf72e, .sub files are
no longer in use. removing the makefile machinery to handle them not
only cleans up and simplifies the makefile, but also significantly
reduces make's startup time.
This commit is contained in:
Rich Felker 2016-01-20 02:49:32 +00:00
parent b6363bb70a
commit 0f814a4e57
1 changed files with 2 additions and 16 deletions
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18
Makefile
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@ -19,9 +19,9 @@ syslibdir = /lib
BASE_SRCS = $(sort $(wildcard $(srcdir)/src/*/*.c $(srcdir)/arch/$(ARCH)/src/*.[csS]))
BASE_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(BASE_SRCS)))
ARCH_SRCS = $(wildcard $(srcdir)/src/*/$(ARCH)/*.[csS] $(srcdir)/src/*/$(ARCH)$(ASMSUBARCH)/*.sub)
ARCH_SRCS = $(wildcard $(srcdir)/src/*/$(ARCH)/*.[csS])
ARCH_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(ARCH_SRCS)))
REPLACED_OBJS = $(sort $(subst /$(ARCH)$(ASMSUBARCH)/,/,$(subst /$(ARCH)/,/,$(ARCH_OBJS))) $(subst /$(ARCH)$(ASMSUBARCH)/,/$(ARCH)/,$(subst /$(ARCH)/,/,$(ARCH_OBJS))))
REPLACED_OBJS = $(sort $(subst /$(ARCH)/,/,$(ARCH_OBJS)))
OBJS = $(addprefix obj/, $(filter-out $(REPLACED_OBJS), $(sort $(BASE_OBJS) $(ARCH_OBJS))))
LOBJS = $(OBJS:.o=.lo)
GENH = obj/include/bits/alltypes.h
@ -128,14 +128,6 @@ $(NOSSP_SRCS:%.c=obj/%.o) $(NOSSP_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_NOS
$(CRT_LIBS:lib/%=obj/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
$(patsubst $(srcdir)/%,obj/%,$(dir $(patsubst %/,%,$(dir $(1))))$(ARCH)$(ASMSUBARCH)/$(notdir $(1:.s=.o))): $(1)
endef
$(foreach s,$(wildcard $(srcdir)/src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
$(LOBJS): CFLAGS_ALL += -fPIC -DSHARED
# Choose invocation of assembler to be used
@ -146,9 +138,6 @@ else
AS_CMD = $(CC) $(CFLAGS_ALL) -c -o $@ $<
endif
obj/%.o: $(srcdir)/%.sub
$(CC) $(CFLAGS_ALL) -c -o $@ $(dir $<)$$(cat $<)
obj/%.o: $(srcdir)/%.s
$(AS_CMD) $(CFLAGS_ALL)
@ -158,9 +147,6 @@ obj/%.o: $(srcdir)/%.S
obj/%.o: $(srcdir)/%.c $(GENH) $(IMPH)
$(CC) $(CFLAGS_ALL) -c -o $@ $<
obj/%.lo: $(srcdir)/%.sub
$(CC) $(CFLAGS_ALL) -c -o $@ $(dir $<)$$(cat $<)
obj/%.lo: $(srcdir)/%.s
$(AS_CMD) $(CFLAGS_ALL)