projects/linux·blob master · refs

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1# SPDX-License-Identifier: GPL-2.0
2#
3# sparc/Makefile
4#
5# Makefile for the architecture dependent flags and dependencies on the
6# Sparc and sparc64.
7#
8# Copyright (C) 1994,1996,1998 David S. Miller ([email protected])
9# Copyright (C) 1998 Jakub Jelinek ([email protected])
10
11# We are not yet configured - so test on arch
12ifeq ($(ARCH),sparc64)
13 KBUILD_DEFCONFIG := sparc64_defconfig
14else
15 KBUILD_DEFCONFIG := sparc32_defconfig
16endif
17
18ifeq ($(CONFIG_SPARC32),y)
19#####
20# sparc32
21#
22
23CHECKFLAGS += -D__sparc__
24KBUILD_LDFLAGS := -m elf32_sparc
25export BITS := 32
26UTS_MACHINE := sparc
27
28# We are adding -Wa,-Av8 to KBUILD_CFLAGS to deal with a specs bug in some
29# versions of gcc. Some gcc versions won't pass -Av8 to binutils when you
30# give -mcpu=v8. This silently worked with older bintutils versions but
31# does not any more.
32KBUILD_CFLAGS += -m32 -mcpu=v8 -pipe -mno-fpu $(call cc-option,-fcall-used-g5) $(call cc-option,-fcall-used-g7)
33KBUILD_CFLAGS += -Wa,-Av8
34
35KBUILD_AFLAGS += -m32 -Wa,-Av8
36
37else
38#####
39# sparc64
40#
41
42CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__
43KBUILD_LDFLAGS := -m elf64_sparc
44export BITS := 64
45UTS_MACHINE := sparc64
46
47KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow
48KBUILD_CFLAGS += -ffixed-g4 -ffixed-g5 $(call cc-option,-fcall-used-g7) -Wno-sign-compare
49KBUILD_CFLAGS += -Wa,--undeclared-regs
50KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
51KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs
52
53ifeq ($(CONFIG_MCOUNT),y)
54 KBUILD_CFLAGS += -pg
55endif
56
57endif
58
59libs-y += arch/sparc/prom/
60libs-y += arch/sparc/lib/
61
62drivers-$(CONFIG_PM) += arch/sparc/power/
63drivers-$(CONFIG_VIDEO) += arch/sparc/video/
64
65boot := arch/sparc/boot
66
67# Default target
68all: zImage
69
70image zImage uImage tftpboot.img vmlinux.aout: vmlinux
71 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
72
73install:
74 $(call cmd,install)
75
76archheaders:
77 $(Q)$(MAKE) $(build)=arch/sparc/kernel/syscalls all
78
79vdso-install-$(CONFIG_SPARC64) += arch/sparc/vdso/vdso64.so.dbg
80vdso-install-$(CONFIG_COMPAT) += arch/sparc/vdso/vdso32.so.dbg
81
82# This is the image used for packaging
83KBUILD_IMAGE := $(boot)/zImage
84
85# Don't use tabs in echo arguments.
86define archhelp
87 echo '* vmlinux - standard SPARC kernel'
88 echo ' image - kernel image ($(boot)/image)'
89 echo '* zImage - stripped/compressed kernel image ($(boot)/zImage)'
90 echo ' uImage - U-Boot SPARC32 Image (only for LEON)'
91 echo ' vmlinux.aout - a.out kernel for SPARC64'
92 echo ' tftpboot.img - image prepared for tftp'
93endef