hypervisor/Makefile

   1 #
   2 # Jailhouse, a Linux-based partitioning hypervisor
   3 #
   4 # Copyright (c) Siemens AG, 2013
   5 # Copyright (c) Valentine Sinitsyn, 2014
   6 #
   7 # Authors:
   8 #  Jan Kiszka <jan.kiszka@siemens.com>
   9 #  Valentine Sinitsyn <valentine.sinitsyn@gmail.com>
  10 #
  11 # This work is licensed under the terms of the GNU GPL, version 2.  See
  12 # the COPYING file in the top-level directory.
  13 #
  14 # asm-defines.h generation code derived from linux/Kbuild:
  15 #
  16 # Copyright (c) Linux kernel developers, 2014
  17 #
  18
  19 LINUXINCLUDE := -I$(src)/arch/$(SRCARCH)/include -I$(src)/include
  20 KBUILD_CFLAGS := -g -Os -Wall -Wstrict-prototypes -Wtype-limits \
  21                  -Wmissing-declarations -Wmissing-prototypes \
  22                  -fno-strict-aliasing -fno-pic -fno-common \
  23                  -fno-stack-protector -fno-builtin-ffsl
  24
  25 ifeq ($(SRCARCH),x86)
  26 KBUILD_CFLAGS += -mcmodel=kernel -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
  27 KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
  28 KBUILD_CPPFLAGS += -m64
  29 BUILD_VARIANTS := amd intel
  30 endif
  31
  32 ifeq ($(SRCARCH),arm)
  33 KBUILD_CFLAGS += -marm
  34 endif
  35
  36 ifneq ($(wildcard $(obj)/include/jailhouse/config.h),)
  37 KBUILD_CFLAGS += -include $(obj)/include/jailhouse/config.h
  38 endif
  39
  40 CORE_OBJECTS = setup.o printk.o paging.o control.o lib.o mmio.o
  41
  42 define filechk_config_mk
  43 (                                                                       \
  44         echo "\$$(foreach config,\$$(filter CONFIG_%,           \
  45                 \$$(.VARIABLES)), \$$(eval undefine \$$(config)))";     \
  46         if [ -f $(src)/include/jailhouse/config.h ]; then               \
  47                 sed -e "/^#define \([^[:space:]]*\)[[:space:]]*1/!d"    \
  48                     -e "s/^#define \([^[:space:]]*\)[[:space:]]*1/\1=y/" \
  49                         $(src)/include/jailhouse/config.h;              \
  50         fi                                                              \
  51 )
  52 endef
  53
  54 $(obj)/include/generated/config.mk: Makefile FORCE
  55         $(call filechk,config_mk)
  56
  57 define filechk_version
  58         $(src)/../scripts/gen_version_h $(src)/..
  59 endef
  60
  61 clean-dirs += include/generated/
  62
  63 define sed-y
  64         "/^=>/{s:=>#\(.*\):/* \1 */:; \
  65         s:^=>\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
  66         s:^=>\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
  67         s:=>::; p;}"
  68 endef
  69
  70 quiet_cmd_defines = GEN     $@
  71 define cmd_defines
  72         (set -e; \
  73          echo "#ifndef _GENERATED_ASM_DEFINES_H"; \
  74          echo "#define _GENERATED_ASM_DEFINES_H"; \
  75          echo "/*"; \
  76          echo " * This file is autogenerated. If you need to change it,"; \
  77          echo " * edit arch/$(SRCARCH)/asm-defines.c instead."; \
  78          echo " *"; \
  79          echo " * ALL MANUAL CHANGES TO THIS FILE WILL BE LOST!"; \
  80          echo " */"; \
  81          echo ""; \
  82          sed -ne $(sed-y) $<; \
  83          echo ""; \
  84          echo "#endif" ) > $@
  85 endef
  86
  87 defines-file := include/generated/asm-defines.h
  88
  89 targets := $(defines-file) arch/$(SRCARCH)/asm-defines.s
  90
  91 $(obj)/arch/$(SRCARCH)/asm-defines.s: $(src)/arch/$(SRCARCH)/asm-defines.c
  92         $(call if_changed_dep,cc_s_c)
  93
  94 $(obj)/$(defines-file): $(obj)/arch/$(SRCARCH)/asm-defines.s
  95         $(Q)mkdir -p $(dir $@)
  96         $(call cmd,defines)
  97
  98 $(obj)/include/generated/version.h: $(src)/Makefile FORCE
  99         $(call filechk,version)
 100
 101 $(foreach co,$(CORE_OBJECTS),\
 102         $(eval $(obj)/$(co): $(obj)/$(defines-file)))
 103
 104 $(obj)/setup.o: $(obj)/include/generated/version.h
 105
 106 arch-builtin: $(obj)/$(defines-file) $(obj)/include/generated/config.mk FORCE
 107         $(Q)$(MAKE) $(build)=$(obj)/arch/$(SRCARCH) \
 108                 CONFIG_MK=$(obj)/include/generated/config.mk
 109
 110 always :=
 111
 112 define BUILD_JAILHOUSE_template
 113 always += jailhouse$(1).bin
 114
 115 hypervisor$(1)-y := $$(CORE_OBJECTS) arch/$$(SRCARCH)/built-in$(1).o \
 116         hypervisor.lds
 117 targets += $$(hypervisor$(1)-y)
 118
 119 # Need fake recipe here so make will consider this a volatile target
 120 $$(obj)/arch/$$(SRCARCH)/built-in$(1).o: arch-builtin
 121         @
 122
 123 HYPERVISOR$(1)_OBJS = $$(addprefix $$(obj)/,$$(hypervisor$(1)-y))
 124
 125 LDFLAGS_hypervisor$(1).o := -T
 126
 127 targets += hypervisor$(1).o
 128 $$(obj)/hypervisor$(1).o: $$(src)/hypervisor.lds $$(HYPERVISOR$(1)_OBJS)
 129         $$(call if_changed,ld)
 130
 131 OBJCOPYFLAGS_jailhouse$(1).bin := -O binary -R .eh_frame
 132
 133 targets += jailhouse$(1).bin
 134 $$(obj)/jailhouse$(1).bin: $$(obj)/hypervisor$(1).o
 135         $$(call if_changed,objcopy)
 136 endef
 137
 138 ifneq ($(BUILD_VARIANTS),)
 139 $(foreach variant,$(BUILD_VARIANTS),\
 140         $(eval $(call BUILD_JAILHOUSE_template,-$(variant))))
 141 else
 142 $(eval $(call BUILD_JAILHOUSE_template,))
 143 endif
 144
 145 .PHONY: arch-builtin