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Makefile

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #
  2 # alpha/Makefile
  3 #
  4 # This file is subject to the terms and conditions of the GNU General Public
  5 # License.  See the file "COPYING" in the main directory of this archive
  6 # for more details.
  7 #
  8 # Copyright (C) 1994 by Linus Torvalds
  9 #
 10 
 11 NM := $(NM) -B
 12 
 13 LINKFLAGS = -static -T arch/alpha/vmlinux.lds -N #-relax
 14 CFLAGS := $(CFLAGS) -pipe -mno-fp-regs -ffixed-8
 15 
 16 # Determine if we can use the BWX instructions with GAS.
 17 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
 18 
 19 # Determine if GCC understands the -mcpu= option.
 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 
 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 
 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 
 26 have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
 27 
 28 # Turn on the proper cpu optimizations.
 29 ifeq ($(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_PYXIS),ny)
 44     CFLAGS := $(CFLAGS) -mcpu=ev56
 45     mcpu_done := y
 46   endif
 47   ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS),ny)
 48     ifeq ($(have_mcpu_pca56),y)
 49       CFLAGS := $(CFLAGS) -mcpu=pca56
 50     else
 51       CFLAGS := $(CFLAGS) -mcpu=ev56
 52     endif
 53     mcpu_done := y
 54   endif
 55   ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
 56     CFLAGS := $(CFLAGS) -mcpu=ev4
 57     mcpu_done := y
 58   endif
 59   ifeq ($(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 := $(CFLAGS) -mcpu=ev56
 71       endif
 72     endif
 73     mcpu_done := y
 74   endif
 75 endif
 76 
 77 # For TSUNAMI, we must have the assembler not emulate our instructions.
 78 # The same is true for IRONGATE, POLARIS, PYXIS.
 79 # BWX is most important, but we don't really want any emulation ever.
 80 
 81 ifeq ($(old_gas),y)
 82   # How do we do #error in make?
 83   CFLAGS := --error-please-upgrade-your-assembler
 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         @$(MAKEBOOT) clean
120         rm -f arch/alpha/vmlinux.lds
121 
122 archmrproper:
123 
124 archdep:
125         @$(MAKEBOOT) dep
126 
127 vmlinux: arch/alpha/vmlinux.lds
128 
129 arch/alpha/vmlinux.lds: arch/alpha/vmlinux.lds.in
130         $(CPP) $(CPPFLAGS) -xc -P arch/alpha/vmlinux.lds.in -o arch/alpha/vmlinux.lds
131 
132 bootpfile:
133         @$(MAKEBOOT) bootpfile

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