xref: /openbmc/linux/arch/sparc/Makefile (revision 6a767685) 
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 (davem@caip.rutgers.edu)
9# Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
10
11# We are not yet configured - so test on arch
12ifeq ($(ARCH),sparc)
13        KBUILD_DEFCONFIG := sparc32_defconfig
14else
15        KBUILD_DEFCONFIG := sparc64_defconfig
16endif
17
18ifeq ($(CONFIG_SPARC32),y)
19#####
20# sparc32
21#
22
23CHECKFLAGS     += -D__sparc__
24LDFLAGS        := -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 -fcall-used-g5 -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__ -m64
43LDFLAGS       := -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 -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
59head-y                 := arch/sparc/kernel/head_$(BITS).o
60
61# See arch/sparc/Kbuild for the core part of the kernel
62core-y                 += arch/sparc/
63
64libs-y                 += arch/sparc/prom/
65libs-y                 += arch/sparc/lib/
66
67drivers-$(CONFIG_PM) += arch/sparc/power/
68drivers-$(CONFIG_OPROFILE)	+= arch/sparc/oprofile/
69
70boot := arch/sparc/boot
71
72# Default target
73all: zImage
74
75image zImage uImage tftpboot.img vmlinux.aout: vmlinux
76	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
77
78install:
79	$(Q)$(MAKE) $(build)=$(boot) $@
80
81archclean:
82	$(Q)$(MAKE) $(clean)=$(boot)
83
84PHONY += vdso_install
85vdso_install:
86	$(Q)$(MAKE) $(build)=arch/sparc/vdso $@
87
88# This is the image used for packaging
89KBUILD_IMAGE := $(boot)/zImage
90
91# Don't use tabs in echo arguments.
92ifeq ($(ARCH),sparc)
93define archhelp
94  echo  '* image        - kernel image ($(boot)/image)'
95  echo  '* zImage       - stripped kernel image ($(boot)/zImage)'
96  echo  '  uImage       - U-Boot SPARC32 Image (only for LEON)'
97  echo  '  tftpboot.img - image prepared for tftp'
98endef
99else
100define archhelp
101  echo  '* vmlinux      - standard sparc64 kernel'
102  echo  '* zImage       - stripped and compressed sparc64 kernel ($(boot)/zImage)'
103  echo  '  vmlinux.aout - a.out kernel for sparc64'
104  echo  '  tftpboot.img - image prepared for tftp'
105endef
106endif
107