1 # SPDX-License-Identifier: GPL-2.0
2 HOSTARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
3 -e s/sun4u/sparc/ -e s/sparc64/sparc/ \
4 -e /arm64/!s/arm.*/arm/ -e s/sa110/arm/ \
5 -e s/s390x/s390/ -e s/parisc64/parisc/ \
6 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
7 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
8 -e s/riscv.*/riscv/ -e s/loongarch.*/loongarch/)
9
10 ifndef ARCH
11 ARCH := $(HOSTARCH)
12 endif
13
14 SRCARCH := $(ARCH)
15
16 # Additional ARCH settings for x86
17 ifeq ($(ARCH),i386)
18 SRCARCH := x86
19 endif
20 ifeq ($(ARCH),x86_64)
21 SRCARCH := x86
22 endif
23
24 # Additional ARCH settings for sparc
25 ifeq ($(ARCH),sparc32)
26 SRCARCH := sparc
27 endif
28 ifeq ($(ARCH),sparc64)
29 SRCARCH := sparc
30 endif
31
32 # Additional ARCH settings for loongarch
33 ifeq ($(ARCH),loongarch32)
34 SRCARCH := loongarch
35 endif
36
37 ifeq ($(ARCH),loongarch64)
38 SRCARCH := loongarch
39 endif
40
41 LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
42 ifeq ($(LP64), 1)
43 IS_64_BIT := 1
44 else
45 IS_64_BIT := 0
46 endif
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