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23 lines
892 B
Makefile
23 lines
892 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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GENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
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GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH))
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c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c)
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# This cmd checks that the vdso library does not contain absolute relocation
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# It has to be called after the linking of the vdso library and requires it
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# as a parameter.
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#
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# $(ARCH_REL_TYPE_ABS) is defined in the arch specific makefile and corresponds
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# to the absolute relocation types printed by "objdump -R" and accepted by the
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# dynamic linker.
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ifndef ARCH_REL_TYPE_ABS
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$(error ARCH_REL_TYPE_ABS is not set)
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endif
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quiet_cmd_vdso_check = VDSOCHK $@
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cmd_vdso_check = if $(OBJDUMP) -R $@ | grep -E -h "$(ARCH_REL_TYPE_ABS)"; \
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then (echo >&2 "$@: dynamic relocations are not supported"; \
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rm -f $@; /bin/false); fi
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