1 # SPDX-License-Identifier: GPL-2.0 !! 1 # $Id: Makefile,v 1.52 2002/02/09 19:49:31 davem Exp $
2 # Makefile for the Hexagon arch !! 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 AFLAGS_vmlinux.lds.o += -Usparc
>> 12
>> 13 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 )
>> 14
>> 15 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; )
>> 16 NEW_GAS := $(shell if $(LD) -V 2>&1 | grep 'elf64_sparc' > /dev/null; then echo y; else echo n; fi)
>> 17 UNDECLARED_REGS := $(shell if $(CC) -c -x assembler /dev/null -Wa,--help | grep undeclared-regs > /dev/null; then echo y; else echo n; fi; )
>> 18 INLINE_LIMIT := $(shell if $(CC) -m64 -finline-limit=100000 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo y; else echo n; fi; )
>> 19
>> 20 export NEW_GCC
>> 21
>> 22 ifneq ($(NEW_GAS),y)
>> 23 AS = sparc64-linux-as
>> 24 LD = sparc64-linux-ld
>> 25 NM = sparc64-linux-nm
>> 26 AR = sparc64-linux-ar
>> 27 RANLIB = sparc64-linux-ranlib
>> 28 else
>> 29 AS := $(AS) -64
>> 30 LDFLAGS := -m elf64_sparc
>> 31 endif
>> 32
>> 33 ifneq ($(UNDECLARED_REGS),y)
>> 34 CC_UNDECL =
>> 35 else
>> 36 CC_UNDECL = -Wa,--undeclared-regs
>> 37 AS := $(AS) --undeclared-regs
>> 38 endif
>> 39
>> 40 ifneq ($(NEW_GCC),y)
>> 41 CFLAGS := $(CFLAGS) -pipe -mno-fpu -mtune=ultrasparc -mmedlow \
>> 42 -ffixed-g4 -fcall-used-g5 -fcall-used-g7 -Wno-sign-compare
>> 43 else
>> 44 CFLAGS := $(CFLAGS) -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
>> 45 -ffixed-g4 -fcall-used-g5 -fcall-used-g7 -Wno-sign-compare \
>> 46 $(CC_UNDECL)
>> 47 AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
>> 48 endif
>> 49
>> 50 ifeq ($(INLINE_LIMIT),y)
>> 51 CFLAGS := $(CFLAGS) -finline-limit=100000
>> 52 endif
>> 53
>> 54 ifeq ($(CONFIG_MCOUNT),y)
>> 55 CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS))
>> 56 CFLAGS := $(CFLAGS) -pg
>> 57 endif
>> 58
>> 59 head-y := arch/sparc64/kernel/head.o arch/sparc64/kernel/init_task.o
>> 60
>> 61 core-y += arch/sparc64/kernel/ arch/sparc64/mm/
>> 62 core-$(CONFIG_SOLARIS_EMUL) += arch/sparc64/solaris/
>> 63 core-y += arch/sparc64/math-emu/
>> 64 libs-y += arch/sparc64/prom/ arch/sparc64/lib/
>> 65
>> 66 # FIXME: is drivers- right?
>> 67 drivers-$(CONFIG_OPROFILE) += arch/sparc64/oprofile/
>> 68
>> 69 boot := arch/sparc64/boot
>> 70
>> 71 image tftpboot.img vmlinux.aout: vmlinux
>> 72 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
>> 73
>> 74 archclean:
>> 75 $(Q)$(MAKE) $(clean)=$(boot)
>> 76
>> 77 define archhelp
>> 78 echo '* vmlinux - Standard sparc64 kernel'
>> 79 echo ' vmlinux.aout - a.out kernel for sparc64'
>> 80 echo ' tftpboot.img - Image prepared for tftp'
>> 81 endef
3 82
4 KBUILD_DEFCONFIG = comet_defconfig <<
5 <<
6 # Do not use GP-relative jumps <<
7 KBUILD_CFLAGS += -G0 <<
8 LDFLAGS_vmlinux += -G0 <<
9 <<
10 # Do not use single-byte enums; these will ove <<
11 KBUILD_CFLAGS += -fno-short-enums <<
12 <<
13 # We must use long-calls: <<
14 KBUILD_CFLAGS += -mlong-calls <<
15 <<
16 # Modules must use either long-calls, or use p <<
17 # Use long-calls for now, it's easier. And fa <<
18 # KBUILD_CFLAGS_MODULE += -fPIC <<
19 # KBUILD_LDFLAGS_MODULE += -shared <<
20 KBUILD_CFLAGS_MODULE += -mlong-calls <<
21 <<
22 cflags-y += $(call cc-option,-mv${CONFIG_HEXAG <<
23 aflags-y += $(call cc-option,-mv${CONFIG_HEXAG <<
24 ldflags-y += $(call cc-option,-mv${CONFIG_HEXA <<
25 <<
26 KBUILD_CFLAGS += $(cflags-y) <<
27 KBUILD_AFLAGS += $(aflags-y) <<
28 KBUILD_LDFLAGS += $(ldflags-y) <<
29 <<
30 # Thread-info register will be r19. This valu <<
31 # it is hard-coded in several files. <<
32 TIR_NAME := r19 <<
33 KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADI <<
34 KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME) <<
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