arch/parisc/Makefile

   1 #
   2 # parisc/Makefile
   3 #
   4 # This file is included by the global makefile so that you can add your own
   5 # architecture-specific flags and dependencies.
   6 #
   7 # This file is subject to the terms and conditions of the GNU General Public
   8 # License.  See the file "COPYING" in the main directory of this archive
   9 # for more details.
  10 #
  11 # Copyright (C) 1994 by Linus Torvalds
  12 # Portions Copyright (C) 1999 The Puffin Group
  13 #
  14 # Modified for PA-RISC Linux by Paul Lahaie, Alex deVries,
  15 # Mike Shaver, Helge Deller and Martin K. Petersen
  16 #
  17
  18 boot := arch/parisc/boot
  19 KBUILD_IMAGE := $(boot)/bzImage
  20
  21 CHECKFLAGS      += -D__hppa__=1
  22
  23 ifdef CONFIG_64BIT
  24 UTS_MACHINE     := parisc64
  25 CHECKFLAGS      += -D__LP64__=1
  26 LD_BFD          := elf64-hppa-linux
  27 else # 32-bit
  28 LD_BFD          := elf32-hppa-linux
  29 endif
  30
  31 # select defconfig based on actual architecture
  32 ifeq ($(ARCH),parisc64)
  33         KBUILD_DEFCONFIG := generic-64bit_defconfig
  34         CC_ARCHES := hppa64
  35 else
  36         KBUILD_DEFCONFIG := generic-32bit_defconfig
  37         CC_ARCHES := hppa hppa2.0 hppa1.1
  38 endif
  39
  40 export LD_BFD
  41
  42 # Set default 32 bits cross compilers for vdso
  43 CC_ARCHES_32 = hppa hppa2.0 hppa1.1
  44 CC_SUFFIXES  = linux linux-gnu unknown-linux-gnu suse-linux
  45 CROSS32_COMPILE := $(call cc-cross-prefix, \
  46         $(foreach a,$(CC_ARCHES_32), \
  47         $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
  48 CROSS32CC := $(CROSS32_COMPILE)gcc
  49 export CROSS32CC
  50
  51 # Set default cross compiler for kernel build
  52 ifdef cross_compiling
  53     ifeq ($(CROSS_COMPILE),)
  54                 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux
  55                 CROSS_COMPILE := $(call cc-cross-prefix, \
  56                         $(foreach a,$(CC_ARCHES), \
  57                         $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
  58     endif
  59 endif
  60
  61 ifdef CONFIG_DYNAMIC_FTRACE
  62 ifdef CONFIG_64BIT
  63 NOP_COUNT := 8
  64 else
  65 NOP_COUNT := 5
  66 endif
  67
  68 export CC_USING_RECORD_MCOUNT:=1
  69 export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
  70
  71 KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
  72 KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
  73                  -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
  74
  75 CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
  76 endif
  77
  78 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
  79
  80 cflags-y        := -pipe
  81
  82 # These flags should be implied by an hppa-linux configuration, but they
  83 # are not in gcc 3.2.
  84 cflags-y        += -mno-space-regs
  85
  86 # -mfast-indirect-calls is only relevant for 32-bit kernels.
  87 ifndef CONFIG_64BIT
  88 cflags-y        += -mfast-indirect-calls
  89 endif
  90
  91 # Currently we save and restore fpregs on all kernel entry/interruption paths.
  92 # If that gets optimized, we might need to disable the use of fpregs in the
  93 # kernel.
  94 cflags-y        += -mdisable-fpregs
  95
  96 # Use long jumps instead of long branches (needed if your linker fails to
  97 # link a too big vmlinux executable). Not enabled for building modules.
  98 ifdef CONFIG_MLONGCALLS
  99 KBUILD_CFLAGS_KERNEL += -mlong-calls
 100 endif
 101
 102 # Without this, "ld -r" results in .text sections that are too big (> 0x40000)
 103 # for branches to reach stubs. And multiple .text sections trigger a warning
 104 # when creating the sysfs module information section.
 105 ifndef CONFIG_64BIT
 106 KBUILD_CFLAGS_MODULE += -ffunction-sections
 107 endif
 108
 109 # select which processor to optimise for
 110 cflags-$(CONFIG_PA7000)         += -march=1.1 -mschedule=7100
 111 cflags-$(CONFIG_PA7200)         += -march=1.1 -mschedule=7200
 112 cflags-$(CONFIG_PA7100LC)       += -march=1.1 -mschedule=7100LC
 113 cflags-$(CONFIG_PA7300LC)       += -march=1.1 -mschedule=7300
 114 cflags-$(CONFIG_PA8X00)         += -march=2.0 -mschedule=8000
 115
 116 KBUILD_CFLAGS   += $(cflags-y)
 117 LIBGCC          := $(shell $(CC) -print-libgcc-file-name)
 118 export LIBGCC
 119
 120 libs-y  += arch/parisc/lib/ $(LIBGCC)
 121
 122 drivers-$(CONFIG_VIDEO) += arch/parisc/video/
 123
 124 boot    := arch/parisc/boot
 125
 126 PALO := $(shell if (which palo 2>&1); then : ; \
 127         elif [ -x /sbin/palo ]; then echo /sbin/palo; \
 128         fi)
 129
 130 PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
 131         else echo $(objtree)/palo.conf; \
 132         fi)
 133
 134 palo lifimage: vmlinuz
 135         @if test ! -x "$(PALO)"; then \
 136                 echo 'ERROR: Please install palo first (apt-get install palo)';\
 137                 echo 'or build it from source and install it somewhere in your $$PATH';\
 138                 false; \
 139         fi
 140         @if test ! -f "$(PALOCONF)"; then \
 141                 cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
 142                 echo 'A generic palo config file ($(objree)/palo.conf) has been created for you.'; \
 143                 echo 'You should check it and re-run "make palo".'; \
 144                 echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
 145                 false; \
 146         fi
 147         $(PALO) -f $(PALOCONF)
 148
 149 BOOT_TARGETS    = zImage Image palo lifimage
 150 INSTALL_TARGETS = zinstall install
 151
 152 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
 153
 154 # Default kernel to build
 155 all: bzImage
 156
 157 zImage: vmlinuz
 158 Image: vmlinux
 159
 160 bzImage: vmlinux
 161         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 162
 163 vmlinuz: bzImage
 164         $(OBJCOPY) $(boot)/bzImage $@
 165
 166 ifeq ($(KBUILD_EXTMOD),)
 167 # We need to generate vdso-offsets.h before compiling certain files in kernel/.
 168 # In order to do that, we should use the archprepare target, but we can't since
 169 # asm-offsets.h is included in some files used to generate vdso-offsets.h, and
 170 # asm-offsets.h is built in prepare0, for which archprepare is a dependency.
 171 # Therefore we need to generate the header after prepare0 has been made, hence
 172 # this hack.
 173 prepare: vdso_prepare
 174 vdso_prepare: prepare0
 175         $(if $(CONFIG_64BIT),$(Q)$(MAKE) \
 176                 $(build)=arch/parisc/kernel/vdso64 include/generated/vdso64-offsets.h)
 177         $(Q)$(MAKE) $(build)=arch/parisc/kernel/vdso32 include/generated/vdso32-offsets.h
 178 endif
 179
 180 vdso-install-y                  += arch/parisc/kernel/vdso32/vdso32.so
 181 vdso-install-$(CONFIG_64BIT)    += arch/parisc/kernel/vdso64/vdso64.so
 182
 183 install: KBUILD_IMAGE := vmlinux
 184 zinstall: KBUILD_IMAGE := vmlinuz
 185 install zinstall:
 186         $(call cmd,install)
 187
 188 CLEAN_FILES     += lifimage
 189 MRPROPER_FILES  += palo.conf
 190
 191 define archhelp
 192         @echo  '* vmlinux       - Uncompressed kernel image (./vmlinux)'
 193         @echo  '  vmlinuz       - Compressed kernel image (./vmlinuz)'
 194         @echo  '  palo          - Bootable image (./lifimage)'
 195         @echo  '  install       - Install uncompressed vmlinux kernel using'
 196         @echo  '                  (your) ~/bin/$(INSTALLKERNEL) or'
 197         @echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
 198         @echo  '                  copy to $$(INSTALL_PATH)'
 199         @echo  '  zinstall      - Install compressed vmlinuz kernel'
 200 endef
 201
 202 archheaders:
 203         $(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all