1 # $Id: Makefile,v 1.46 2000/12/14 22:57:26 davem Exp $
2 # sparc64/Makefile
3 #
4 # Makefile for the architecture dependent flags and dependencies on the
5 # 64-bit Sparc.
6 #
7 # Copyright (C) 1996,1998 David S. Miller (davem@caip.rutgers.edu)
8 # Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
9 #
10
11 # If the solaris /bin/sh wasn't so broken, I wouldn't need the following
12 # line...
13 SHELL =/bin/bash
14
15 CC := $(shell if gcc -m64 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo gcc; else echo sparc64-linux-gcc; fi )
16
17 NEW_GCC := $(shell if $(CC) -m64 -mcmodel=medlow -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo y; else echo n; fi; )
18 NEW_GAS := $(shell if $(LD) --version 2>&1 | grep 'elf64_sparc' > /dev/null; then echo y; else echo n; fi)
19 UNDECLARED_REGS := $(shell if $(CC) -c -x assembler /dev/null -Wa,--help | grep undeclared-regs > /dev/null; then echo y; else echo n; fi; )
20
21 export NEW_GCC
22
23 ifneq ($(NEW_GAS),y)
24 AS = sparc64-linux-as
25 LD = sparc64-linux-ld
26 NM = sparc64-linux-nm
27 AR = sparc64-linux-ar
28 RANLIB = sparc64-linux-ranlib
29 else
30 AS := $(AS) -64
31 LD := $(LD) -m elf64_sparc
32 endif
33 ELFTOAOUT = elftoaout
34 ifneq ($(UNDECLARED_REGS),y)
35 CC_UNDECL =
36 else
37 CC_UNDECL = -Wa,--undeclared-regs
38 AS := $(AS) --undeclared-regs
39 endif
40
41 #
42 # Uncomment the first CFLAGS if you are doing kgdb source level
43 # debugging of the kernel to get the proper debugging information.
44
45 #CFLAGS := $(CFLAGS) -g -pipe -fcall-used-g5 -fcall-used-g7
46 ifneq ($(NEW_GCC),y)
47 CFLAGS := $(CFLAGS) -pipe -mno-fpu -mtune=ultrasparc -mmedlow \
48 -ffixed-g4 -fcall-used-g5 -fcall-used-g7 -Wno-sign-compare
49 else
50 CFLAGS := $(CFLAGS) -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
51 -ffixed-g4 -fcall-used-g5 -fcall-used-g7 -Wno-sign-compare \
52 $(CC_UNDECL)
53 AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
54 endif
55
56 # Uncomment this to get spinlock/rwlock debugging on SMP.
57 # DEBUG_SPINLOCK = 1
58
59 ifdef CONFIG_SMP
60 ifdef DEBUG_SPINLOCK
61 CFLAGS += -DSPIN_LOCK_DEBUG
62 AFLAGS += -DSPIN_LOCK_DEBUG
63 endif
64 endif
65
66 LINKFLAGS = -T arch/sparc64/vmlinux.lds
67
68 HEAD := arch/sparc64/kernel/head.o arch/sparc64/kernel/init_task.o
69
70 SUBDIRS += arch/sparc64/kernel arch/sparc64/lib arch/sparc64/mm \
71 arch/sparc64/prom
72
73 ifneq ($(CONFIG_SOLARIS_EMUL),n)
74 SUBDIRS += arch/sparc64/solaris
75 endif
76
77 SUBDIRS += arch/sparc64/math-emu
78
79 CORE_FILES := arch/sparc64/kernel/kernel.o arch/sparc64/mm/mm.o $(CORE_FILES)
80
81 ifeq ($(CONFIG_SOLARIS_EMUL),y)
82 CORE_FILES += arch/sparc64/solaris/solaris.o
83 endif
84
85 CORE_FILES += arch/sparc64/math-emu/math-emu.o
86
87 LIBS := $(TOPDIR)/lib/lib.a $(LIBS) $(TOPDIR)/arch/sparc64/prom/promlib.a \
88 $(TOPDIR)/arch/sparc64/lib/lib.a
89
90 vmlinux.aout: vmlinux
91 $(ELFTOAOUT) -o $(TOPDIR)/vmlinux.aout $(TOPDIR)/vmlinux
92
93 archclean:
94 rm -f $(TOPDIR)/vmlinux.aout
95
96 archmrproper:
97 rm -f $(TOPDIR)/include/asm-sparc64/asm_offsets.h
98
99 archdep: check_asm
100
101 check_asm:
102 $(MAKE) -C arch/sparc64/kernel check_asm
103
104 tftpboot.img:
105 $(MAKE) -C arch/sparc64/boot tftpboot.img
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