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# SPDX-License-Identifier: GPL-2.0
# When ARCH not overridden for crosscompiling, lookup machine
ARCH ?= $(shell uname -m 2>/dev/null || echo not)
ifneq (,$(filter $(ARCH),aarch64 arm64))
ARM64_SUBTARGETS ?= tags signal
else
ARM64_SUBTARGETS :=
endif
CFLAGS := -Wall -O2 -g
# A proper top_srcdir is needed by KSFT(lib.mk)
top_srcdir = $(realpath ../../../../)
# Additional include paths needed by kselftest.h and local headers
CFLAGS += -I$(top_srcdir)/tools/testing/selftests/
# Guessing where the Kernel headers could have been installed
# depending on ENV config
ifeq ($(KBUILD_OUTPUT),)
khdr_dir = $(top_srcdir)/usr/include
else
# the KSFT preferred location when KBUILD_OUTPUT is set
khdr_dir = $(KBUILD_OUTPUT)/kselftest/usr/include
endif
CFLAGS += -I$(khdr_dir)
export CFLAGS
export top_srcdir
all:
@for DIR in $(ARM64_SUBTARGETS); do \
BUILD_TARGET=$(OUTPUT)/$$DIR; \
mkdir -p $$BUILD_TARGET; \
make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \
done
install: all
@for DIR in $(ARM64_SUBTARGETS); do \
BUILD_TARGET=$(OUTPUT)/$$DIR; \
make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \
done
run_tests: all
@for DIR in $(ARM64_SUBTARGETS); do \
BUILD_TARGET=$(OUTPUT)/$$DIR; \
make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \
done
# Avoid any output on non arm64 on emit_tests
emit_tests: all
@for DIR in $(ARM64_SUBTARGETS); do \
BUILD_TARGET=$(OUTPUT)/$$DIR; \
make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \
done
clean:
@for DIR in $(ARM64_SUBTARGETS); do \
BUILD_TARGET=$(OUTPUT)/$$DIR; \
make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \
done
.PHONY: all clean install run_tests emit_tests
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