3a5befc146
As kbuild document & commit 6588169d51 says: KBUILD_CFLAGS_MODULE is
used to add arch-specific options for $(CC). From commandline,
CFLAGS_MODULE shall be used.
Doesn't have any functional change, but just follow kbuild rules.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
CC: linux-hexagon@vger.kernel.org
Acked-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
42 lines
1.2 KiB
Makefile
42 lines
1.2 KiB
Makefile
# Makefile for the Hexagon arch
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KBUILD_DEFCONFIG = comet_defconfig
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# Do not use GP-relative jumps
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KBUILD_CFLAGS += -G0
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LDFLAGS_vmlinux += -G0
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# Do not use single-byte enums; these will overflow.
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KBUILD_CFLAGS += -fno-short-enums
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# Modules must use either long-calls, or use pic/plt.
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# Use long-calls for now, it's easier. And faster.
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# KBUILD_CFLAGS_MODULE += -fPIC
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# KBUILD_LDFLAGS_MODULE += -shared
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KBUILD_CFLAGS_MODULE += -mlong-calls
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cflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
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aflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
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ldflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_AFLAGS += $(aflags-y)
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# no KBUILD_LDFLAGS?
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LDFLAGS += $(ldflags-y)
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# Thread-info register will be r19. This value is not configureable;
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# it is hard-coded in several files.
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TIR_NAME := r19
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KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
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KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
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LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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libs-y += $(LIBGCC)
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head-y := arch/hexagon/kernel/head.o
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core-y += arch/hexagon/kernel/ \
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arch/hexagon/mm/ \
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arch/hexagon/lib/
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