1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 KBUILD_DEFCONFIG := mmu_defconfig !! 2 # alpha/Makefile
3 !! 3 #
4 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\" !! 4 # This file is subject to the terms and conditions of the GNU General Public
5 !! 5 # License. See the file "COPYING" in the main directory of this archive
6 # What CPU version are we building for, and cr !! 6 # for more details.
7 # as major.minor.rev !! 7 #
8 CPU_VER := $(CONFIG_XILINX_MICROBLAZE0_HW_VE !! 8 # Copyright (C) 1994 by Linus Torvalds
9 CPU_MAJOR := $(word 1, $(subst ., , $(CPU_VER) !! 9 #
10 CPU_MINOR := $(word 2, $(subst ., , $(CPU_VER) !! 10
11 CPU_REV := $(word 3, $(subst ., , $(CPU_VER) !! 11 NM := $(NM) -B
12 !! 12
13 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV !! 13 LINKFLAGS = -static -T arch/alpha/vmlinux.lds -N #-relax
14 !! 14 CFLAGS := $(CFLAGS) -pipe -mno-fp-regs -ffixed-8
15 # Use cpu-related CONFIG_ vars to set compile !! 15
16 # The various CONFIG_XILINX cpu features optio !! 16 # Determine if we can use the BWX instructions with GAS.
17 # rather than bools y/n !! 17 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
18 !! 18
19 # Work out HW multipler support. This is trick !! 19 # Determine if GCC understands the -mcpu= option.
20 # 1. Spartan2 has no HW multipliers. !! 20 have_mcpu := $(shell if $(CC) -mcpu=ev5 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
21 # 2. MicroBlaze v3.x always uses them, except !! 21
22 # 3. All other FPGa/CPU ver combos, we can tru !! 22 have_mcpu_pca56 := $(shell if $(CC) -mcpu=pca56 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
23 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_M !! 23
24 ifeq ($(CPU_MAJOR),3) !! 24 have_mcpu_ev6 := $(shell if $(CC) -mcpu=ev6 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
25 CPUFLAGS-1 += -mno-xl-soft-mul !! 25
26 else !! 26 have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
27 # USE_HW_MUL can be 0, 1, or 2, defining a !! 27
28 CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROB !! 28 # Turn on the proper cpu optimizations.
29 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_H !! 29 ifeq ($(have_mcpu),y)
>> 30 # If GENERIC, make sure to turn off any instruction set extensions that
>> 31 # the host compiler might have on by default. Given that EV4 and EV5
>> 32 # have the same instruction set, prefer EV5 because an EV5 schedule is
>> 33 # more likely to keep an EV4 processor busy than vice-versa.
>> 34 mcpu_done := n
>> 35 ifeq ($(CONFIG_ALPHA_GENERIC),y)
>> 36 CFLAGS := $(CFLAGS) -mcpu=ev5
>> 37 mcpu_done := y
>> 38 endif
>> 39 ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy)
>> 40 CFLAGS := $(CFLAGS) -mcpu=pca56
>> 41 mcpu_done := y
>> 42 endif
>> 43 ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy)
>> 44 CFLAGS := $(CFLAGS) -mcpu=pca56
>> 45 mcpu_done := y
>> 46 endif
>> 47 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
>> 48 CFLAGS := $(CFLAGS) -mcpu=ev4
>> 49 mcpu_done := y
>> 50 endif
>> 51 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny)
>> 52 CFLAGS := $(CFLAGS) -mcpu=ev56
>> 53 mcpu_done := y
>> 54 endif
>> 55 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny)
>> 56 CFLAGS := $(CFLAGS) -mcpu=ev5
>> 57 mcpu_done := y
>> 58 endif
>> 59 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy)
>> 60 CFLAGS := $(CFLAGS) -mcpu=ev67
>> 61 mcpu_done := y
>> 62 endif
>> 63 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)
>> 64 ifeq ($(have_mcpu_ev6),y)
>> 65 CFLAGS := $(CFLAGS) -mcpu=ev6
>> 66 else
>> 67 ifeq ($(have_mcpu_pca56),y)
>> 68 CFLAGS := $(CFLAGS) -mcpu=pca56
>> 69 else
>> 70 CFLAGS := $(CFLAGS) -mcpu=ev56
>> 71 endif
>> 72 endif
>> 73 mcpu_done := y
30 endif 74 endif
31 endif 75 endif
32 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) !! 76
33 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARRE !! 77 # For TSUNAMI, we must have the assembler not emulate our instructions.
34 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_ !! 78 # The same is true for IRONGATE, POLARIS, PYXIS.
35 !! 79 # BWX is most important, but we don't really want any emulation ever.
36 ifdef CONFIG_CPU_BIG_ENDIAN !! 80
37 KBUILD_CFLAGS += -mbig-endian !! 81 ifeq ($(old_gas),y)
38 KBUILD_AFLAGS += -mbig-endian !! 82 # How do we do #error in make?
39 KBUILD_LDFLAGS += -EB !! 83 CFLAGS := --error-please-upgrade-your-assembler
40 else <<
41 KBUILD_CFLAGS += -mlittle-endian <<
42 KBUILD_AFLAGS += -mlittle-endian <<
43 KBUILD_LDFLAGS += -EL <<
44 endif 84 endif
>> 85 CFLAGS := $(CFLAGS) -Wa,-mev6
>> 86
>> 87 HEAD := arch/alpha/kernel/head.o
>> 88
>> 89 SUBDIRS := $(SUBDIRS) arch/alpha/kernel arch/alpha/mm arch/alpha/lib \
>> 90 arch/alpha/math-emu
>> 91 CORE_FILES := arch/alpha/kernel/kernel.o arch/alpha/mm/mm.o $(CORE_FILES)
>> 92
>> 93 ifeq ($(CONFIG_MATHEMU),y)
>> 94 CORE_FILES := $(CORE_FILES) arch/alpha/math-emu/math-emu.o
>> 95 endif
>> 96
>> 97 LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a
>> 98
>> 99 MAKEBOOT = $(MAKE) -C arch/alpha/boot
>> 100
>> 101 rawboot:
>> 102 @$(MAKEBOOT) rawboot
>> 103
>> 104 #
>> 105 # My boot writes directly to a specific disk partition, I doubt most
>> 106 # people will want to do that without changes..
>> 107 #
>> 108 msb my-special-boot:
>> 109 @$(MAKEBOOT) msb
>> 110
>> 111 bootimage:
>> 112 @$(MAKEBOOT) bootimage
>> 113
>> 114 srmboot:
>> 115 @$(MAKEBOOT) srmboot
>> 116
>> 117 archclean:
>> 118 @$(MAKE) -C arch/alpha/kernel clean
>> 119 @$(MAKEBOOT) clean
>> 120 rm -f arch/alpha/vmlinux.lds
45 121
46 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VE !! 122 archmrproper:
47 123
48 # r31 holds current when in kernel mode !! 124 archdep:
49 KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(C !! 125 @$(MAKEBOOT) dep
50 126
51 libs-y += arch/microblaze/lib/ !! 127 vmlinux: arch/alpha/vmlinux.lds
52 128
53 boot := arch/microblaze/boot !! 129 arch/alpha/vmlinux.lds: arch/alpha/vmlinux.lds.in
>> 130 $(CPP) $(CPPFLAGS) -xc -P arch/alpha/vmlinux.lds.in -o arch/alpha/vmlinux.lds
54 131
55 # Are we making a simpleImage.<boardname> targ !! 132 bootpfile:
56 DTB:=$(subst simpleImage.,,$(filter simpleImag !! 133 @$(MAKEBOOT) bootpfile
57 <<
58 export DTB <<
59 <<
60 all: linux.bin <<
61 <<
62 archheaders: <<
63 $(Q)$(MAKE) $(build)=arch/microblaze/k <<
64 <<
65 PHONY += linux.bin linux.bin.gz linux.bin.ub <<
66 linux.bin.ub linux.bin.gz: linux.bin <<
67 linux.bin: vmlinux <<
68 linux.bin linux.bin.gz linux.bin.ub: <<
69 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
70 @echo 'Kernel: $(boot)/$@ is ready' ' <<
71 <<
72 PHONY += simpleImage.$(DTB) <<
73 simpleImage.$(DTB): vmlinux <<
74 $(Q)$(MAKE) $(build)=$(boot) $(addpref <<
75 @echo 'Kernel: $(boot)/$@ is ready' ' <<
76 <<
77 define archhelp <<
78 echo '* linux.bin - Create raw binary' <<
79 echo ' linux.bin.gz - Create compressed raw <<
80 echo ' linux.bin.ub - Create U-Boot wrapped <<
81 echo ' simpleImage.<dt> - Create the follow <<
82 echo ' simpleImage.<dt> <<
83 echo ' simpleImage.<dt>.u <<
84 echo ' simpleImage.<dt>.u <<
85 echo ' simpleImage.<dt>.s <<
86 echo ' Targets with <dt> embed a device tre <<
87 echo ' These targets support board with fir <<
88 echo ' support passing a device tree direct <<
89 echo ' name of a dts file from the arch/mic <<
90 echo ' (minus the .dts extension).' <<
91 endef <<
92 134
93 MRPROPER_FILES += $(boot)/simpleImage.* !! 135 bootpzfile:
>> 136 @$(MAKEBOOT) bootpzfile
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