f25d677147
1. Moved arch-specific setup to their own files:
- <arch>/<arch>.mk, arch-specific configs. Variables in those config
end with the arch name.
- removed the extra complexity introduced by function libc-add-cpu-variant-src,
which seems to be not very useful these days.
2. Separated out the crt object files generation rules and set up the
rules for both TARGET_ARCH and TARGET_2ND_ARCH.
3. Build all the libraries for both TARGET_ARCH and TARGET_2ND_ARCH,
with the arch-specific LOCAL_ variables.
Bug: 11654773
Change-Id: I9c2d85db0affa49199d182236d2210060a321421
150 lines
5.7 KiB
Makefile
150 lines
5.7 KiB
Makefile
# Define the libc run-time (crt) support object files that must be built,
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# which are needed to build all other objects (shared/static libs and
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# executables)
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# ==========================================================================
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# AArch64, ARM, MIPS, and x86 all need crtbegin_so/crtend_so.
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#
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# For x86, the .init section must point to a function that calls all
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# entries in the .ctors section. (on ARM this is done through the
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# .init_array section instead).
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#
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# For all the platforms, the .fini_array section must point to a function
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# that will call __cxa_finalize(&__dso_handle) in order to ensure that
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# static C++ destructors are properly called on dlclose().
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#
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# Args:
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# my_2nd_arch_prefix: set to $(TARGET_2ND_ARCH_VAR_PREFIX) if it's
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# for the 2nd arch; otherwise empty.
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my_arch := $(TARGET_$(my_2nd_arch_prefix)ARCH)
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my_libc_crt_target_crtbegin_file := $(libc_crt_target_crtbegin_file_$(my_arch))
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my_libc_crt_target_crtbegin_so_file := $(libc_crt_target_crtbegin_so_file_$(my_arch))
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my_libc_crt_target_cflags := \
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$(libc_crt_target_cflags) \
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$(libc_crt_target_cflags_$(my_arch))
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my_libc_crt_target_so_cflags := \
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$(libc_crt_target_so_cflags_$(my_arch)) \
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$(my_libc_crt_target_cflags)
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my_libc_crt_target_ldflags := $(libc_crt_target_ldflags_$(my_arch))
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# See the comment in crtbrand.c for the reason why we need to generate
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# crtbrand.s before generating crtbrand.o.
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.s
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
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$(GEN): $(LOCAL_PATH)/bionic/crtbrand.c
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) -S \
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-MD -MF $(@:%.s=%.d) -o $@ $<
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$(hide) sed -i -e '/\.note\.ABI-tag/s/progbits/note/' $@
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$(call transform-d-to-p-args,$(@:%.s=%.d),$(@:%.s=%.P))
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-include $(GEN:%.s=%.P)
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.o
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
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$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.s
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) -o $@ -c $<
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
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$(GEN): $(my_libc_crt_target_crtbegin_so_file)
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
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-MD -MF $(@:%.o=%.d) -o $@ -c $<
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$(transform-d-to-p)
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-include $(GEN:%.o=%.P)
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_so_cflags)
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$(GEN): $(LOCAL_PATH)/arch-common/bionic/crtend_so.S
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
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-MD -MF $(@:%.o=%.d) -o $@ -c $<
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$(transform-d-to-p)
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-include $(GEN:%.o=%.P)
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# The following two are installed to device
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_SHARED_LIBRARIES)/crtbegin_so.o
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$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
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$(hide) mkdir -p $(dir $@) && cp -f $< $@
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ALL_GENERATED_SOURCES += $(GEN)
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_SHARED_LIBRARIES)/crtend_so.o
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$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
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$(hide) mkdir -p $(dir $@) && cp -f $< $@
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ALL_GENERATED_SOURCES += $(GEN)
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static1.o
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_cflags)
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$(GEN): $(my_libc_crt_target_crtbegin_file)
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
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-MD -MF $(@:%.o=%.d) -o $@ -c $<
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$(transform-d-to-p)
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-include $(GEN:%.o=%.P)
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
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$(GEN): PRIVATE_LD := $($(my_2nd_arch_prefix)TARGET_LD)
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$(GEN): PRIVATE_LDFLAGS := $(my_libc_crt_target_ldflags)
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$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static1.o \
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$($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.o
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_LD) $(PRIVATE_LDFLAGS) -r -o $@ $^
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic1.o
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_cflags)
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$(GEN): $(my_libc_crt_target_crtbegin_file)
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
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-MD -MF $(@:%.o=%.d) -o $@ -c $<
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$(transform-d-to-p)
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-include $(GEN:%.o=%.P)
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
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$(GEN): PRIVATE_LD := $($(my_2nd_arch_prefix)TARGET_LD)
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$(GEN): PRIVATE_LDFLAGS := $(my_libc_crt_target_ldflags)
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$(GEN): $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic1.o \
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$($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbrand.o
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_LD) $(PRIVATE_LDFLAGS) -r -o $@ $^
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# We rename crtend.o to crtend_android.o to avoid a
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# name clash between gcc and bionic.
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GEN := $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
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$(GEN): PRIVATE_CC := $($(my_2nd_arch_prefix)TARGET_CC)
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$(GEN): PRIVATE_CFLAGS := $(my_libc_crt_target_cflags)
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$(GEN): $(LOCAL_PATH)/arch-common/bionic/crtend.S
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@mkdir -p $(dir $@)
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$(hide) $(PRIVATE_CC) $(PRIVATE_CFLAGS) \
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-MD -MF $(@:%.o=%.d) -o $@ -c $<
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$(transform-d-to-p)
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-include $(GEN:%.o=%.P)
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# Clear temp vars
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my_libc_crt_target_ldflags :=
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my_libc_crt_target_so_cflags :=
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my_libc_crt_target_cflags :=
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my_libc_crt_target_crtbegin_so_file :=
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my_libc_crt_target_crtbegin_file :=
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my_arch :=
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