linux/arch/parisc/Makefile
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   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
  18boot := arch/parisc/boot
  19KBUILD_IMAGE := $(boot)/bzImage
  20
  21CHECKFLAGS      += -D__hppa__=1
  22
  23ifdef CONFIG_64BIT
  24UTS_MACHINE     := parisc64
  25CHECKFLAGS      += -D__LP64__=1
  26LD_BFD          := elf64-hppa-linux
  27else # 32-bit
  28LD_BFD          := elf32-hppa-linux
  29endif
  30
  31# select defconfig based on actual architecture
  32ifeq ($(ARCH),parisc64)
  33        KBUILD_DEFCONFIG := generic-64bit_defconfig
  34        CC_ARCHES := hppa64
  35else
  36        KBUILD_DEFCONFIG := generic-32bit_defconfig
  37        CC_ARCHES := hppa hppa2.0 hppa1.1
  38endif
  39
  40export LD_BFD
  41
  42# Set default 32 bits cross compilers for vdso
  43CC_ARCHES_32 = hppa hppa2.0 hppa1.1
  44CC_SUFFIXES  = linux linux-gnu unknown-linux-gnu suse-linux
  45CROSS32_COMPILE := $(call cc-cross-prefix, \
  46        $(foreach a,$(CC_ARCHES_32), \
  47        $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
  48CROSS32CC := $(CROSS32_COMPILE)gcc
  49export CROSS32CC
  50
  51# Set default cross compiler for kernel build
  52ifdef cross_compiling
  53        ifeq ($(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
  59endif
  60
  61ifdef CONFIG_DYNAMIC_FTRACE
  62ifdef CONFIG_64BIT
  63NOP_COUNT := 8
  64else
  65NOP_COUNT := 5
  66endif
  67
  68export CC_USING_RECORD_MCOUNT:=1
  69export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
  70
  71KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
  72KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
  73                 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
  74
  75CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
  76endif
  77
  78OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
  79
  80cflags-y        := -pipe
  81
  82# These flags should be implied by an hppa-linux configuration, but they
  83# are not in gcc 3.2.
  84cflags-y        += -mno-space-regs
  85
  86# -mfast-indirect-calls is only relevant for 32-bit kernels.
  87ifndef CONFIG_64BIT
  88cflags-y        += -mfast-indirect-calls
  89endif
  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.
  94cflags-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.
  98ifdef CONFIG_MLONGCALLS
  99KBUILD_CFLAGS_KERNEL += -mlong-calls
 100endif
 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.
 105ifndef CONFIG_64BIT
 106KBUILD_CFLAGS_MODULE += -ffunction-sections
 107endif
 108
 109# select which processor to optimise for
 110cflags-$(CONFIG_PA7000)         += -march=1.1 -mschedule=7100
 111cflags-$(CONFIG_PA7200)         += -march=1.1 -mschedule=7200
 112cflags-$(CONFIG_PA7100LC)       += -march=1.1 -mschedule=7100LC
 113cflags-$(CONFIG_PA7300LC)       += -march=1.1 -mschedule=7300
 114cflags-$(CONFIG_PA8X00)         += -march=2.0 -mschedule=8000
 115
 116KBUILD_CFLAGS   += $(cflags-y)
 117LIBGCC          := $(shell $(CC) -print-libgcc-file-name)
 118export LIBGCC
 119
 120libs-y  += arch/parisc/lib/ $(LIBGCC)
 121
 122drivers-y += arch/parisc/video/
 123
 124boot    := arch/parisc/boot
 125
 126PALO := $(shell if (which palo 2>&1); then : ; \
 127        elif [ -x /sbin/palo ]; then echo /sbin/palo; \
 128        fi)
 129
 130PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
 131        else echo $(objtree)/palo.conf; \
 132        fi)
 133
 134palo 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
 149BOOT_TARGETS    = zImage Image palo lifimage
 150INSTALL_TARGETS = zinstall install
 151
 152PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
 153
 154# Default kernel to build
 155all: bzImage
 156
 157zImage: vmlinuz
 158Image: vmlinux
 159
 160bzImage: vmlinux
 161        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 162
 163vmlinuz: bzImage
 164        $(OBJCOPY) $(boot)/bzImage $@
 165
 166ifeq ($(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.
 173prepare: vdso_prepare
 174vdso_prepare: prepare0
 175        $(if $(CONFIG_64BIT),$(Q)$(MAKE) \
 176                $(build)=arch/parisc/kernel/vdso64 include/generated/vdso64-offsets.h)
 177        $(Q)$(MAKE) $(build)=arch/parisc/kernel/vdso32 include/generated/vdso32-offsets.h
 178endif
 179
 180vdso-install-y                  += arch/parisc/kernel/vdso32/vdso32.so
 181vdso-install-$(CONFIG_64BIT)    += arch/parisc/kernel/vdso64/vdso64.so
 182
 183install: KBUILD_IMAGE := vmlinux
 184zinstall: KBUILD_IMAGE := vmlinuz
 185install zinstall:
 186        $(call cmd,install)
 187
 188CLEAN_FILES     += lifimage
 189MRPROPER_FILES  += palo.conf
 190
 191define archhelp
 192        @echo  '* vmlinux       - Uncompressed kernel image (./vmlinux)'
 193        @echo  '  vmlinuz       - Compressed kernel image (./vmlinuz)'
 194        @echo  '  palo          - Bootable image (./lifimage)'
 195        @echo  '  install       - Install uncompressed vmlinux kernel using'
 196        @echo  '                  (your) ~/bin/$(INSTALLKERNEL) or'
 197        @echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
 198        @echo  '                  copy to $$(INSTALL_PATH)'
 199        @echo  '  zinstall      - Install compressed vmlinuz kernel'
 200endef
 201
 202archheaders:
 203        $(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
 204