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Linux/tools/testing/selftests/arm64/mte/Makefile

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  1 # SPDX-License-Identifier: GPL-2.0
  2 # Copyright (C) 2020 ARM Limited
  3 
  4 CFLAGS += -std=gnu99 -I. -pthread
  5 LDFLAGS += -pthread
  6 SRCS := $(filter-out mte_common_util.c,$(wildcard *.c))
  7 PROGS := $(patsubst %.c,%,$(SRCS))
  8 
  9 ifeq ($(LLVM),)
 10 # For GCC check that the toolchain has MTE support.
 11 
 12 # preserve CC value from top level Makefile
 13 ifeq ($(CC),cc)
 14 CC := $(CROSS_COMPILE)gcc
 15 endif
 16 
 17 #check if the compiler works well
 18 mte_cc_support := $(shell if ($(CC) $(CFLAGS) -march=armv8.5-a+memtag -E -x c /dev/null -o /dev/null 2>&1) then echo "1"; fi)
 19 
 20 else
 21 
 22 # All supported clang versions also support MTE.
 23 mte_cc_support := 1
 24 
 25 endif
 26 
 27 ifeq ($(mte_cc_support),1)
 28 # Generated binaries to be installed by top KSFT script
 29 TEST_GEN_PROGS := $(PROGS)
 30 
 31 else
 32     $(warning compiler "$(CC)" does not support the ARMv8.5 MTE extension.)
 33     $(warning test program "mte" will not be created.)
 34 endif
 35 
 36 # Include KSFT lib.mk.
 37 include ../../lib.mk
 38 
 39 ifeq ($(mte_cc_support),1)
 40 $(TEST_GEN_PROGS): mte_common_util.c mte_helper.S
 41 endif

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