payloads/coreinfo/Makefile

   1 ##
   2 ## This file is part of the coreinfo project.
   3 ##
   4 ## Copyright (C) 2008 Advanced Micro Devices, Inc.
   5 ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
   6 ##
   7 ## This program is free software; you can redistribute it and/or modify
   8 ## it under the terms of the GNU General Public License as published by
   9 ## the Free Software Foundation; version 2 of the License.
  10 ##
  11 ## This program is distributed in the hope that it will be useful,
  12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ## GNU General Public License for more details.
  15 ##
  16
  17 src := $(CURDIR)
  18 srctree := $(src)
  19 srck := $(src)/../../util/kconfig
  20 coreinfo_obj := $(src)/build
  21 objk := $(src)/build/util/kconfig
  22
  23 ifeq ($(filter %clean,$(MAKECMDGOALS)),)
  24 export KERNELVERSION      := 0.1.0
  25 export KCONFIG_AUTOHEADER := $(coreinfo_obj)/config.h
  26 export KCONFIG_AUTOCONFIG := $(coreinfo_obj)/auto.conf
  27 export KCONFIG_DEPENDENCIES := $(coreinfo_obj)/auto.conf.cmd
  28 export KCONFIG_SPLITCONFIG := $(coreinfo_obj)/config
  29 export KCONFIG_TRISTATE := $(coreinfo_obj)/tristate.conf
  30 export KCONFIG_CONFIG := $(CURDIR)/.config
  31 export KCONFIG_NEGATIVES := 1
  32 export Kconfig := Kconfig
  33
  34 export V := $(V)
  35
  36 CONFIG_SHELL := sh
  37 KBUILD_DEFCONFIG := configs/defconfig
  38 UNAME_RELEASE := $(shell uname -r)
  39 HAVE_DOTCONFIG := $(wildcard .config)
  40 MAKEFLAGS += -rR --no-print-directory
  41
  42 # Make is silent per default, but 'make V=1' will show all compiler calls.
  43 ifneq ($(V),1)
  44 .SILENT:
  45 endif
  46
  47 HOSTCC ?= gcc
  48 HOSTCXX ?= g++
  49 HOSTCFLAGS := -I$(srck) -I$(objk)
  50 HOSTCXXFLAGS := -I$(srck) -I$(objk)
  51
  52 LIBPAYLOAD_PATH := $(realpath ../libpayload)
  53 LIBPAYLOAD_OBJ := $(coreinfo_obj)/libpayload
  54 HAVE_LIBPAYLOAD := $(wildcard $(LIBPAYLOAD_OBJ)/lib/libpayload.a)
  55 LIBPAYLOAD_CONFIG ?= configs/defconfig-tinycurses
  56 OBJCOPY ?= objcopy
  57
  58 INCLUDES = -I$(coreinfo_obj) -include $(LIBPAYLOAD_OBJ)/include/kconfig.h -I$(src)/../../src/commonlib/include
  59 OBJECTS = cpuinfo_module.o cpuid.S.o pci_module.o coreboot_module.o \
  60           nvram_module.o bootlog_module.o ramdump_module.o \
  61           multiboot_module.o cbfs_module.o timestamps_module.o coreinfo.o
  62 OBJS    = $(patsubst %,$(coreinfo_obj)/%,$(OBJECTS))
  63 TARGET  = $(coreinfo_obj)/coreinfo.elf
  64
  65 all: real-all
  66
  67 # in addition to the dependency below, create the file if it doesn't exist
  68 # to silence warnings about a file that would be generated anyway.
  69 $(if $(wildcard .xcompile),,$(eval $(shell ../../util/xcompile/xcompile $(XGCCPATH) > .xcompile || rm -f .xcompile)))
  70 .xcompile: ../../util/xcompile/xcompile
  71         $< $(XGCCPATH) > $@.tmp
  72         \mv -f $@.tmp $@ 2> /dev/null || rm -f $@.tmp $@
  73
  74 CONFIG_COMPILER_GCC := y
  75 ARCH-y     := x86_32
  76
  77 include .xcompile
  78
  79 CC := $(CC_$(ARCH-y))
  80 AS := $(AS_$(ARCH-y))
  81 OBJCOPY := $(OBJCOPY_$(ARCH-y))
  82
  83 LPCC := CC="$(CC)" $(LIBPAYLOAD_OBJ)/bin/lpgcc
  84 LPAS := AS="$(AS)" $(LIBPAYLOAD_OBJ)/bin/lpas
  85
  86 CFLAGS += -Wall -Wextra -Wmissing-prototypes -Werror
  87 CFLAGS += -Os -fno-builtin $(CFLAGS_$(ARCH-y)) $(INCLUDES)
  88
  89 ifneq ($(strip $(HAVE_DOTCONFIG)),)
  90 include $(src)/.config
  91 real-all: $(TARGET)
  92
  93 $(TARGET): $(src)/.config $(coreinfo_obj)/config.h $(OBJS) libpayload
  94         printf "    LPCC       $(subst $(CURDIR)/,,$(@)) (LINK)\n"
  95         $(LPCC) -o $@ $(OBJS)
  96         $(OBJCOPY) --only-keep-debug $@ $(TARGET).debug
  97         $(OBJCOPY) --strip-debug $@
  98         $(OBJCOPY) --add-gnu-debuglink=$(TARGET).debug $@
  99
 100 $(coreinfo_obj)/%.S.o: $(src)/%.S libpayload
 101         printf "    LPAS       $(subst $(CURDIR)/,,$(@))\n"
 102         $(LPAS) -o $@ $<
 103
 104 $(coreinfo_obj)/%.o: $(src)/%.c libpayload
 105         printf "    LPCC       $(subst $(CURDIR)/,,$(@))\n"
 106         $(LPCC) $(CFLAGS) -c -o $@ $<
 107
 108 else
 109 real-all: config
 110 endif
 111
 112 defaultbuild:
 113         $(MAKE) olddefconfig
 114         $(MAKE) all
 115
 116 ifneq ($(strip $(HAVE_LIBPAYLOAD)),)
 117 libpayload:
 118         printf "Found Libpayload $(LIBPAYLOAD_OBJ).\n"
 119 else
 120 LPOPTS=obj="$(CURDIR)/lpbuild" DOTCONFIG="$(CURDIR)/lp.config"
 121 libpayload:
 122         printf "Building libpayload @ $(LIBPAYLOAD_PATH).\n"
 123         $(MAKE) -C $(LIBPAYLOAD_PATH) $(LPOPTS) distclean coreinfo_obj=$(coreinfo_obj)/libptmp
 124         $(MAKE) -C $(LIBPAYLOAD_PATH) $(LPOPTS) defconfig KBUILD_DEFCONFIG=$(LIBPAYLOAD_CONFIG)
 125         $(MAKE) -C $(LIBPAYLOAD_PATH) $(LPOPTS) install DESTDIR=$(coreinfo_obj)
 126 endif
 127
 128 $(coreinfo_obj)/config.h:
 129         $(MAKE) oldconfig
 130
 131 $(shell mkdir -p $(coreinfo_obj) $(objk)/lxdialog $(KCONFIG_SPLITCONFIG))
 132
 133 include $(srck)/Makefile
 134
 135 .PHONY: $(PHONY) prepare
 136
 137 else
 138
 139 clean:
 140         rm -rf build/*.elf build/*.o .xcompile
 141
 142 distclean: clean
 143         rm -rf build lpbuild
 144         rm -f .config* lp.config*
 145
 146 .PHONY: clean distclean
 147 endif