forked from xen-project/xen
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Config.mk
312 lines (254 loc) · 10.4 KB
/
Config.mk
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
# -*- mode: Makefile; -*-
ifeq ($(filter /%,$(XEN_ROOT)),)
$(error XEN_ROOT must be absolute)
endif
# Convenient variables
comma := ,
squote := '
empty :=
space := $(empty) $(empty)
# fallback for older make
realpath = $(wildcard $(foreach file,$(1),$(shell cd -P $(dir $(file)) && echo "$$PWD/$(notdir $(file))")))
or = $(if $(strip $(1)),$(1),$(if $(strip $(2)),$(2),$(if $(strip $(3)),$(3),$(if $(strip $(4)),$(4)))))
-include $(XEN_ROOT)/.config
# A debug build of Xen and tools?
debug ?= y
debug_symbols ?= $(debug)
# Test coverage support
coverage ?= n
XEN_COMPILE_ARCH ?= $(shell uname -m | sed -e s/i.86/x86_32/ \
-e s/i86pc/x86_32/ -e s/amd64/x86_64/ \
-e s/armv7.*/arm32/ -e s/armv8.*/arm64/ \
-e s/aarch64/arm64/)
XEN_TARGET_ARCH ?= $(XEN_COMPILE_ARCH)
XEN_OS ?= $(shell uname -s)
CONFIG_$(XEN_OS) := y
SHELL ?= /bin/sh
# Tools to run on system hosting the build
HOSTCFLAGS = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
HOSTCFLAGS += -fno-strict-aliasing
DISTDIR ?= $(XEN_ROOT)/dist
DESTDIR ?= /
# Allow phony attribute to be listed as dependency rather than fake target
.PHONY: .phony
# If we are not cross-compiling, default HOSTC{C/XX} to C{C/XX}
ifeq ($(XEN_TARGET_ARCH), $(XEN_COMPILE_ARCH))
HOSTCC ?= $(CC)
HOSTCXX ?= $(CXX)
endif
# Use Clang/LLVM instead of GCC?
clang ?= n
ifeq ($(clang),n)
gcc := y
HOSTCC ?= gcc
HOSTCXX ?= g++
else
gcc := n
HOSTCC ?= clang
HOSTCXX ?= clang++
endif
include $(XEN_ROOT)/config/$(XEN_OS).mk
include $(XEN_ROOT)/config/$(XEN_TARGET_ARCH).mk
# arguments: variable, common path part, path to test, if yes, if no
define setvar_dir
ifndef $(1)
ifneq (,$(wildcard $(2)$(3)))
$(1) ?= $(2)$(4)
else
$(1) ?= $(2)$(5)
endif
endif
endef
ifneq ($(EXTRA_PREFIX),)
EXTRA_INCLUDES += $(EXTRA_PREFIX)/include
EXTRA_LIB += $(EXTRA_PREFIX)/lib
endif
PYTHON ?= python
PYTHON_PREFIX_ARG ?= --prefix="$(prefix)"
# The above requires that prefix contains *no spaces*. This variable is here
# to permit the user to set PYTHON_PREFIX_ARG to '' to workaround this bug:
# https://bugs.launchpad.net/ubuntu/+bug/362570
# cc-option: Check if compiler supports first option, else fall back to second.
#
# This is complicated by the fact that unrecognised -Wno-* options:
# (a) are ignored unless the compilation emits a warning; and
# (b) even then produce a warning rather than an error
# To handle this we do a test compile, passing the option-under-test, on a code
# fragment that will always produce a warning (integer assigned to pointer).
# We then grep for the option-under-test in the compiler's output, the presence
# of which would indicate an "unrecognized command-line option" warning/error.
#
# Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586)
cc-option = $(shell if test -z "`echo 'void*p=1;' | \
$(1) $(2) -S -o /dev/null -x c - 2>&1 | grep -- $(2) -`"; \
then echo "$(2)"; else echo "$(3)"; fi ;)
# cc-option-add: Add an option to compilation flags, but only if supported.
# Usage: $(call cc-option-add CFLAGS,CC,-march=winchip-c6)
cc-option-add = $(eval $(call cc-option-add-closure,$(1),$(2),$(3)))
define cc-option-add-closure
ifneq ($$(call cc-option,$$($(2)),$(3),n),n)
$(1) += $(3)
endif
endef
cc-options-add = $(foreach o,$(3),$(call cc-option-add,$(1),$(2),$(o)))
# cc-ver: Check compiler is at least specified version. Return boolean 'y'/'n'.
# Usage: ifeq ($(call cc-ver,$(CC),0x030400),y)
cc-ver = $(shell if [ $$((`$(1) -dumpversion | awk -F. \
'{ printf "0x%02x%02x%02x", $$1, $$2, $$3}'`)) -ge $$(($(2))) ]; \
then echo y; else echo n; fi ;)
# cc-ver-check: Check compiler is at least specified version, else fail.
# Usage: $(call cc-ver-check,CC,0x030400,"Require at least gcc-3.4")
cc-ver-check = $(eval $(call cc-ver-check-closure,$(1),$(2),$(3)))
define cc-ver-check-closure
ifeq ($$(call cc-ver,$$($(1)),$(2)),n)
override $(1) = echo "*** FATAL BUILD ERROR: "$(3) >&2; exit 1;
cc-option := n
endif
endef
# Require GCC v4.1+
check-$(gcc) = $(call cc-ver-check,CC,0x040100,"Xen requires at least gcc-4.1")
$(eval $(check-y))
ld-ver-build-id = $(shell $(1) --build-id 2>&1 | \
grep -q build-id && echo n || echo y)
export XEN_HAS_BUILD_ID ?= n
ifeq ($(call ld-ver-build-id,$(LD)),n)
build_id_linker :=
else
CFLAGS += -DBUILD_ID
export XEN_HAS_BUILD_ID=y
build_id_linker := --build-id=sha1
endif
ifndef XEN_HAS_CHECKPOLICY
CHECKPOLICY ?= checkpolicy
XEN_HAS_CHECKPOLICY := $(shell $(CHECKPOLICY) -h 2>&1 | grep -q xen && echo y || echo n)
export XEN_HAS_CHECKPOLICY
endif
# as-insn: Check whether assembler supports an instruction.
# Usage: cflags-y += $(call as-insn "insn",option-yes,option-no)
as-insn = $(if $(shell echo 'void _(void) { asm volatile ( $(2) ); }' \
| $(1) $(filter-out -M% %.d -include %/include/xen/config.h,$(AFLAGS)) \
-c -x c -o /dev/null - 2>&1),$(4),$(3))
# as-insn-check: Add an option to compilation flags, but only if insn is
# supported by assembler.
# Usage: $(call as-insn-check CFLAGS,CC,"nop",-DHAVE_GAS_NOP)
as-insn-check = $(eval $(call as-insn-check-closure,$(1),$(2),$(3),$(4)))
define as-insn-check-closure
ifeq ($$(call as-insn,$$($(2)),$(3),y,n),y)
$(1) += $(4)
endif
endef
define buildmakevars2shellvars
export PREFIX="$(prefix)"; \
export XEN_SCRIPT_DIR="$(XEN_SCRIPT_DIR)"; \
export XEN_ROOT="$(XEN_ROOT)"
endef
#
# Compare $(1) and $(2) and replace $(2) with $(1) if they differ
#
# Typically $(1) is a newly generated file and $(2) is the target file
# being regenerated. This prevents changing the timestamp of $(2) only
# due to being auto regenereated with the same contents.
define move-if-changed
if ! cmp -s $(1) $(2); then mv -f $(1) $(2); else rm -f $(1); fi
endef
BUILD_MAKE_VARS := sbindir bindir LIBEXEC LIBEXEC_BIN libdir SHAREDIR \
XENFIRMWAREDIR XEN_CONFIG_DIR XEN_SCRIPT_DIR XEN_LOCK_DIR \
XEN_RUN_DIR XEN_PAGING_DIR XEN_DUMP_DIR XEN_LOG_DIR \
XEN_LIB_DIR XEN_RUN_STORED
buildmakevars2file = $(eval $(call buildmakevars2file-closure,$(1)))
define buildmakevars2file-closure
$(1): .phony
rm -f $(1).tmp; \
$(foreach var, $(BUILD_MAKE_VARS), \
echo "$(var)=\"$($(var))\"" >>$(1).tmp;) \
$(call move-if-changed,$(1).tmp,$(1))
endef
buildmakevars2header = $(eval $(call buildmakevars2header-closure,$(1)))
define buildmakevars2header-closure
$(1): .phony
rm -f $(1).tmp; \
$(foreach var, $(BUILD_MAKE_VARS), \
echo "#define $(var) \"$($(var))\"" >>$(1).tmp;) \
$(call move-if-changed,$(1).tmp,$(1))
endef
ifeq ($(debug_symbols),y)
CFLAGS += -g
endif
CFLAGS += -fno-strict-aliasing
CFLAGS += -std=gnu99
CFLAGS += -Wall -Wstrict-prototypes
# Clang complains about macros that expand to 'if ( ( foo == bar ) ) ...'
# and is over-zealous with the printf format lint
# and is a bit too fierce about unused return values
CFLAGS-$(clang) += -Wno-parentheses -Wno-format -Wno-unused-value
$(call cc-option-add,HOSTCFLAGS,HOSTCC,-Wdeclaration-after-statement)
$(call cc-option-add,CFLAGS,CC,-Wdeclaration-after-statement)
$(call cc-option-add,CFLAGS,CC,-Wno-unused-but-set-variable)
$(call cc-option-add,CFLAGS,CC,-Wno-unused-local-typedefs)
LDFLAGS += $(foreach i, $(EXTRA_LIB), -L$(i))
CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i))
LDFLAGS += $(foreach i, $(PREPEND_LIB), -L$(i))
CFLAGS += $(foreach i, $(PREPEND_INCLUDES), -I$(i))
ifeq ($(XEN_TOOLS_RPATH),y)
LDFLAGS += -Wl,-rpath,$(libdir)
endif
APPEND_LDFLAGS += $(foreach i, $(APPEND_LIB), -L$(i))
APPEND_CFLAGS += $(foreach i, $(APPEND_INCLUDES), -I$(i))
EMBEDDED_EXTRA_CFLAGS := -nopie -fno-stack-protector -fno-stack-protector-all
EMBEDDED_EXTRA_CFLAGS += -fno-exceptions
XEN_EXTFILES_URL ?= http://xenbits.xen.org/xen-extfiles
# All the files at that location were downloaded from elsewhere on
# the internet. The original download URL is preserved as a comment
# near the place in the Xen Makefiles where the file is used.
# Where to look for inlined subtrees (for example, from a tarball)
QEMU_UPSTREAM_INTREE ?= $(XEN_ROOT)/tools/qemu-xen
QEMU_TRADITIONAL_INTREE ?= $(XEN_ROOT)/tools/qemu-xen-traditional
# Handle legacy options
ifneq (,$(SEABIOS_UPSTREAM_TAG))
SEABIOS_UPSTREAM_REVISION ?= $(SEABIOS_UPSTREAM_TAG)
endif
ifneq (,$(QEMU_REMOTE))
QEMU_TRADITIONAL_URL ?= $(QEMU_REMOTE)
endif
ifneq (,$(CONFIG_QEMU))
QEMU_TRADITIONAL_LOC ?= $(CONFIG_QEMU)
endif
ifneq (,$(QEMU_TAG))
QEMU_TRADITIONAL_REVISION ?= $(QEMU_TAG)
endif
ifeq ($(GIT_HTTP),y)
OVMF_UPSTREAM_URL ?= http://xenbits.xen.org/git-http/ovmf.git
QEMU_UPSTREAM_URL ?= http://xenbits.xen.org/git-http/qemu-xen.git
QEMU_TRADITIONAL_URL ?= http://xenbits.xen.org/git-http/qemu-xen-traditional.git
SEABIOS_UPSTREAM_URL ?= http://xenbits.xen.org/git-http/seabios.git
MINIOS_UPSTREAM_URL ?= http://xenbits.xen.org/git-http/mini-os.git
else
OVMF_UPSTREAM_URL ?= git://xenbits.xen.org/ovmf.git
QEMU_UPSTREAM_URL ?= git://xenbits.xen.org/qemu-xen.git
QEMU_TRADITIONAL_URL ?= git://xenbits.xen.org/qemu-xen-traditional.git
SEABIOS_UPSTREAM_URL ?= git://xenbits.xen.org/seabios.git
MINIOS_UPSTREAM_URL ?= git://xenbits.xen.org/mini-os.git
endif
OVMF_UPSTREAM_REVISION ?= 52a99493cce88a9d4ec8a02d7f1bd1a1001ce60d
QEMU_UPSTREAM_REVISION ?= master
MINIOS_UPSTREAM_REVISION ?= 1a3ee6eeca136525aa2e6917ae500e7cf731c09d
# Fri May 13 15:21:10 2016 +0100
# lib/sys.c: enclose file_types in define guards
SEABIOS_UPSTREAM_REVISION ?= rel-1.9.2
# Tue, 1 Mar 2016 15:06:45 +0100 (16:06 +0200)
# fw/pci: add Q35 S3 support
ETHERBOOT_NICS ?= rtl8139 8086100e
QEMU_TRADITIONAL_REVISION ?= 6e20809727261599e8527c456eb078c0e89139a1
# Thu May 19 19:38:35 2016 +0100
# main loop: Big hammer to fix logfile disk DoS in Xen setups
# Specify which qemu-dm to use. This may be `ioemu' to use the old
# Mercurial in-tree version, or a local directory, or a git URL.
# QEMU_UPSTREAM_LOC ?= `pwd`/$(XEN_ROOT)/../qemu-xen.git
# Defaults for subtree locations
QEMU_TRADITIONAL_LOC ?= $(call or,$(wildcard $(QEMU_TRADITIONAL_INTREE)),\
$(QEMU_TRADITIONAL_URL))
QEMU_UPSTREAM_LOC ?= $(call or,$(wildcard $(QEMU_UPSTREAM_INTREE)),\
$(QEMU_UPSTREAM_URL))
# Short answer -- do not enable this unless you know what you are
# doing and are prepared for some pain.
CONFIG_TESTS ?= y