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adapt "out of tree build" for arm64

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This commit is contained in:
Takayuki Okamoto
2017-09-11 15:29:53 +09:00
parent 0278a876db
commit 325082a571
7 changed files with 65 additions and 62 deletions
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56
arch/arm64/kernel/vdso/Makefile.in
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@@ -8,14 +8,18 @@ HOST_KERNEL_CONFIG_ARM64_4K_PAGES=$(shell grep -E "^CONFIG_ARM64_4K_PAGES=y" $(H
HOST_KERNEL_CONFIG_ARM64_16K_PAGES=$(shell grep -E "^CONFIG_ARM64_16K_PAGES=y" $(HOST_CONFIG) | sed 's|CONFIG_ARM64_16K_PAGES=||g')
HOST_KERNEL_CONFIG_ARM64_64K_PAGES=$(shell grep -E "^CONFIG_ARM64_64K_PAGES=y" $(HOST_CONFIG) | sed 's|CONFIG_ARM64_64K_PAGES=||g')
VDSOBASE = $(CURDIR)
INCDIR = $(VDSOBASE)/../include
VDSOSRC = @abs_srcdir@
VDSOBUILD = @abs_builddir@
INCDIR = $(VDSOSRC)/../include
ECHO_SUFFIX = [VDSO]
VDSO_OBJS := gettimeofday.o note.o sigreturn.o
DESTOBJS = $(addprefix $(VDSOBASE)/, $(VDSO_OBJS))
VDSOOBJS := gettimeofday.o
DESTOBJS = $(addprefix $(VDSOBUILD)/, $(VDSOOBJS))
$(if $(VDSOBASE),,$(error IHK output directory is not specified))
VDSOASMOBJS := note.o sigreturn.o
DESTASMOBJS = $(addprefix $(VDSOBUILD)/, $(VDSOASMOBJS))
$(if $(VDSOSRC),,$(error IHK output directory is not specified))
$(if $(TARGET),,$(error Target is not specified))
#CFLAGS := -nostdinc -mlittle-endian -Wall -mabi=lp64 -Wa,-gdwarf-2
@@ -42,7 +46,7 @@ LDFLAGS += --param=allow-store-data-races=0 -DCC_HAVE_ASM_GOTO
LDFLAGS += -D"KBUILD_STR(s)=\#s" -D"KBUILD_BASENAME=KBUILD_STR(vdso.so)"
LDFLAGS += -D"KBUILD_MODNAME=KBUILD_STR(vdso.so)" -D__KERNEL__
DEPSRCS = $(wildcard $(VDSOBASE)/*.c $(VDSOBASE)/*.S)
DEPSRCS = $(wildcard $(VDSOSRC)/*.c $(VDSOSRC)/*.S)
CFLAGS_lds := -E -P -C -U$(ARCH)
CFLAGS_lds += -nostdinc
@@ -62,43 +66,47 @@ CFLAGS_lds += -DPAGE_SIZE=0x10000
endif
#load mckernel config (append CPPFLAGS)
include $(IHKBASE)/$(TARGETDIR)/Makefile.predefines
include @abs_top_builddir@/../ihk/cokernel/$(TARGETDIR)/Makefile.predefines
default: all
.PHONY: all clean depend prepare
all: depend $(VDSOBASE)/vdso.so $(INCDIR)/vdso-offsets.h
all: depend $(VDSOBUILD)/vdso.so $(VDSOBUILD)/../include/vdso-offsets.h $(VDSOBUILD)/../include/vdso-so-path.h
# Strip rule for the .so file
$(VDSOBASE)/vdso.so: OBJCOPYFLAGS := -S
$(VDSOBASE)/vdso.so: $(VDSOBASE)/vdso.so.dbg
$(VDSOBUILD)/vdso.so: OBJCOPYFLAGS := -S
$(VDSOBUILD)/vdso.so: $(VDSOBUILD)/vdso.so.dbg
$(objcopy_cmd)
# Generate VDSO offsets using helper script
$(INCDIR)/vdso-offsets.h: $(VDSOBASE)/vdso.so.dbg
$(VDSOBUILD)/../include/vdso-offsets.h: $(VDSOBUILD)/vdso.so.dbg
$(call echo_cmd,VDSOSYM,$<)
@nm $< | sh gen_vdso_offsets.sh | LC_ALL=C sort > $@
@mkdir -p $(VDSOBUILD)/../include
@nm $< | sh $(VDSOSRC)/gen_vdso_offsets.sh | LC_ALL=C sort > $@
$(VDSOBUILD)/../include/vdso-so-path.h:
@echo "#define VDSO_SO_PATH \"@abs_builddir@/vdso.so\"" > $@
# Link rule for the .so file, .lds has to be first
$(VDSOBASE)/vdso.so.dbg: $(VDSOBASE)/vdso.lds $(DESTOBJS)
$(VDSOBUILD)/vdso.so.dbg: $(VDSOBUILD)/vdso.lds $(DESTOBJS) $(DESTASMOBJS)
$(ld_cmd)
$(VDSOBASE)/vdso.lds: vdso.lds.S
$(VDSOBUILD)/vdso.lds: $(VDSOSRC)/vdso.lds.S
$(lds_cmd)
clean:
$(rm_cmd) $(DESTOBJS) $(VDSOBASE)/Makefile.dep
$(rm_cmd) $(DESTOBJS) $(DESTASMOBJS) $(VDSOBUILD)/Makefile.dep $(VDSOBUILD)/vdso.* -r $(VDSOBUILD)/../include
depend: $(VDSOBASE)/Makefile.dep
depend: $(VDSOBUILD)/Makefile.dep
$(VDSOBASE)/Makefile.dep:
$(VDSOBUILD)/Makefile.dep:
$(call dep_cmd,$(DEPSRCS))
prepare:
@$(RM) $(VDSOBASE)/Makefile.dep
@$(RM) $(VDSOBUILD)/Makefile.dep
-include $(VDSOBASE)/Makefile.dep
-include $(VDSOBUILD)/Makefile.dep
# Actual build commands
ifeq ($(V),1)
@@ -109,15 +117,15 @@ echo_cmd = @echo ' ($(TARGET))' $1 $(ECHO_SUFFIX) $2;
submake = make --no-print-directory
endif
cc_cmd = $(call echo_cmd,CC,$<)$(CC) $(CFLAGS) -c -o $@ $<
cc_cmd = $(call echo_cmd,CC,$<)$(CC) $(CFLAGS) -c -o $@
ld_cmd = $(call echo_cmd,LD,$@)$(CC) $(LDFLAGS) $^ -o $@
dep_cmd = $(call echo_cmd,DEPEND,)$(CC) $(CFLAGS) -MM $1 > $@
rm_cmd = $(call echo_cmd,CLEAN,)$(RM)
objcopy_cmd = $(call echo_cmd,OBJCOPY,$<)$(OBJCOPY) $(OBJCOPYFLAGS) $< $@
lds_cmd = $(call echo_cmd,LDS,$<)$(CC) $(CFLAGS_lds) -c -o $@ $<
.c.o:
$(cc_cmd)
.S.o:
$(cc_cmd) -D__ASSEMBLY__
$(DESTOBJS):
$(cc_cmd) $(addprefix $(VDSOSRC)/, $(notdir $(@:.o=.c)))
$(DESTASMOBJS):
$(cc_cmd) $(addprefix $(VDSOSRC)/, $(notdir $(@:.o=.S))) -D__ASSEMBLY__