2 # Jailhouse, a Linux-based partitioning hypervisor
4 # Copyright (c) Siemens AG, 2013
5 # Copyright (c) Valentine Sinitsyn, 2014
8 # Jan Kiszka <jan.kiszka@siemens.com>
9 # Valentine Sinitsyn <valentine.sinitsyn@gmail.com>
11 # This work is licensed under the terms of the GNU GPL, version 2. See
12 # the COPYING file in the top-level directory.
14 # asm-defines.h generation code derived from linux/Kbuild:
16 # Copyright (c) Linux kernel developers, 2014
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
26 KBUILD_CFLAGS += -mcmodel=kernel -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
27 KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
28 KBUILD_CPPFLAGS += -m64
29 BUILD_VARIANTS := amd intel
33 KBUILD_CFLAGS += -marm
36 ifneq ($(wildcard $(obj)/include/jailhouse/config.h),)
37 KBUILD_CFLAGS += -include $(obj)/include/jailhouse/config.h
40 CORE_OBJECTS = setup.o printk.o paging.o control.o lib.o mmio.o
42 define filechk_config_mk
44 echo "\$$(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; \
54 $(obj)/include/generated/config.mk: Makefile FORCE
55 $(call filechk,config_mk)
57 define filechk_version
58 $(src)/../scripts/gen_version_h $(src)/..
61 clean-dirs += include/generated/
64 "/^=>/{s:=>#\(.*\):/* \1 */:; \
65 s:^=>\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
66 s:^=>\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
70 quiet_cmd_defines = GEN $@
73 echo "#ifndef _GENERATED_ASM_DEFINES_H"; \
74 echo "#define _GENERATED_ASM_DEFINES_H"; \
76 echo " * This file is autogenerated. If you need to change it,"; \
77 echo " * edit arch/$(SRCARCH)/asm-defines.c instead."; \
79 echo " * ALL MANUAL CHANGES TO THIS FILE WILL BE LOST!"; \
82 sed -ne $(sed-y) $<; \
87 defines-file := include/generated/asm-defines.h
89 targets := $(defines-file) arch/$(SRCARCH)/asm-defines.s
91 $(obj)/arch/$(SRCARCH)/asm-defines.s: $(src)/arch/$(SRCARCH)/asm-defines.c
92 $(call if_changed_dep,cc_s_c)
94 $(obj)/$(defines-file): $(obj)/arch/$(SRCARCH)/asm-defines.s
95 $(Q)mkdir -p $(dir $@)
98 $(obj)/include/generated/version.h: $(src)/Makefile FORCE
99 $(call filechk,version)
101 $(foreach co,$(CORE_OBJECTS),\
102 $(eval $(obj)/$(co): $(obj)/$(defines-file)))
104 $(obj)/setup.o: $(obj)/include/generated/version.h
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
112 define BUILD_JAILHOUSE_template
113 always += jailhouse$(1).bin
115 hypervisor$(1)-y := $$(CORE_OBJECTS) arch/$$(SRCARCH)/built-in$(1).o \
117 targets += $$(hypervisor$(1)-y)
119 # Need fake recipe here so make will consider this a volatile target
120 $$(obj)/arch/$$(SRCARCH)/built-in$(1).o: arch-builtin
123 HYPERVISOR$(1)_OBJS = $$(addprefix $$(obj)/,$$(hypervisor$(1)-y))
125 LDFLAGS_hypervisor$(1).o := -T
127 targets += hypervisor$(1).o
128 $$(obj)/hypervisor$(1).o: $$(src)/hypervisor.lds $$(HYPERVISOR$(1)_OBJS)
129 $$(call if_changed,ld)
131 OBJCOPYFLAGS_jailhouse$(1).bin := -O binary -R .eh_frame
133 targets += jailhouse$(1).bin
134 $$(obj)/jailhouse$(1).bin: $$(obj)/hypervisor$(1).o
135 $$(call if_changed,objcopy)
138 ifneq ($(BUILD_VARIANTS),)
139 $(foreach variant,$(BUILD_VARIANTS),\
140 $(eval $(call BUILD_JAILHOUSE_template,-$(variant))))
142 $(eval $(call BUILD_JAILHOUSE_template,))