068d78769bcaacf5eb1ab196f0a918ba6bb95e55
[dpdk.git] / mk / rte.sdkconfig.mk
1 #   BSD LICENSE
2 #
3 #   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
4 #   All rights reserved.
5 #
6 #   Redistribution and use in source and binary forms, with or without
7 #   modification, are permitted provided that the following conditions
8 #   are met:
9 #
10 #     * Redistributions of source code must retain the above copyright
11 #       notice, this list of conditions and the following disclaimer.
12 #     * Redistributions in binary form must reproduce the above copyright
13 #       notice, this list of conditions and the following disclaimer in
14 #       the documentation and/or other materials provided with the
15 #       distribution.
16 #     * Neither the name of Intel Corporation nor the names of its
17 #       contributors may be used to endorse or promote products derived
18 #       from this software without specific prior written permission.
19 #
20 #   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 #   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 #   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 #   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 #   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 #   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 #   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 #   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 #   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 #   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32 .PHONY: showversion
33 showversion:
34         @set -- \
35                 $$(sed -rne 's,^#define RTE_VER_[A-Z_]*[[:space:]]+([0-9]+).*,\1,p' \
36                         -e 's,^#define RTE_VER_SUFFIX[[:space:]]+"(.*)",\1,p' \
37                         $(RTE_SRCDIR)/lib/librte_eal/common/include/rte_version.h) ;\
38                 printf '%d.%02d.%d' "$$1" "$$2" "$$3"; \
39                 if [ -z "$$5" ]; then echo; \
40                 else printf '%s' "$$4"; \
41                         if [ $$5 -lt 16 ] ; then echo $$5; \
42                         else echo $$(($$5 - 16)); fi; \
43                 fi
44
45 .PHONY: showversionum
46 showversionum:
47         @set -- \
48                 $$(sed -rne 's,^#define RTE_VER_[A-Z_]*[[:space:]]+([0-9]+).*,\1,p' \
49                         $(RTE_SRCDIR)/lib/librte_eal/common/include/rte_version.h); \
50                 printf '%02d%02d\n' "$$1" "$$2"
51
52 INSTALL_CONFIGS := $(sort $(filter-out %~,\
53         $(patsubst $(RTE_SRCDIR)/config/defconfig_%,%,\
54         $(wildcard $(RTE_SRCDIR)/config/defconfig_*))))
55 INSTALL_TARGETS := $(addsuffix _install,$(INSTALL_CONFIGS))
56
57 .PHONY: showconfigs
58 showconfigs:
59         @$(foreach CONFIG, $(INSTALL_CONFIGS), echo $(CONFIG);)
60
61 .PHONY: notemplate
62 notemplate:
63         @printf "No template specified. "
64         @echo "Use T=template among the following list:"
65         @$(MAKE) -rR showconfigs | sed 's,^,  ,'
66
67 .PHONY: config
68 ifeq ($(RTE_CONFIG_TEMPLATE),)
69 config: notemplate
70 else
71 config: $(RTE_OUTPUT)/include/rte_config.h $(RTE_OUTPUT)/Makefile
72         $(Q)$(MAKE) depdirs
73         @echo "Configuration done"
74 endif
75
76 $(RTE_OUTPUT):
77         $(Q)mkdir -p $@
78
79 ifdef NODOTCONF
80 $(RTE_OUTPUT)/.config: ;
81 else
82 $(RTE_OUTPUT)/.config: $(RTE_CONFIG_TEMPLATE) FORCE | $(RTE_OUTPUT)
83         $(Q)if [ "$(RTE_CONFIG_TEMPLATE)" != "" -a -f "$(RTE_CONFIG_TEMPLATE)" ]; then \
84                 $(CPP) -undef -P -x assembler-with-cpp \
85                 -ffreestanding \
86                 -o $(RTE_OUTPUT)/.config_tmp $(RTE_CONFIG_TEMPLATE) ; \
87                 if ! cmp -s $(RTE_OUTPUT)/.config_tmp $(RTE_OUTPUT)/.config; then \
88                         cp $(RTE_OUTPUT)/.config_tmp $(RTE_OUTPUT)/.config ; \
89                         cp $(RTE_OUTPUT)/.config_tmp $(RTE_OUTPUT)/.config.orig ; \
90                 fi ; \
91                 rm -f $(RTE_OUTPUT)/.config_tmp ; \
92         else \
93                 $(MAKE) -rRf $(RTE_SDK)/mk/rte.sdkconfig.mk notemplate; \
94         fi
95 endif
96
97 # generate a Makefile for this build directory
98 # use a relative path so it will continue to work even if we move the directory
99 SDK_RELPATH=$(shell $(RTE_SDK)/scripts/relpath.sh $(abspath $(RTE_SRCDIR)) \
100                                 $(abspath $(RTE_OUTPUT)))
101 OUTPUT_RELPATH=$(shell $(RTE_SDK)/scripts/relpath.sh $(abspath $(RTE_OUTPUT)) \
102                                 $(abspath $(RTE_SRCDIR)))
103 $(RTE_OUTPUT)/Makefile: | $(RTE_OUTPUT)
104         $(Q)$(RTE_SDK)/scripts/gen-build-mk.sh $(SDK_RELPATH) $(OUTPUT_RELPATH) \
105                 > $(RTE_OUTPUT)/Makefile
106
107 # clean installed files, and generate a new config header file
108 # if NODOTCONF variable is defined, don't try to rebuild .config
109 $(RTE_OUTPUT)/include/rte_config.h: $(RTE_OUTPUT)/.config
110         $(Q)rm -rf $(RTE_OUTPUT)/include $(RTE_OUTPUT)/app \
111                 $(RTE_OUTPUT)/lib \
112                 $(RTE_OUTPUT)/hostlib $(RTE_OUTPUT)/kmod $(RTE_OUTPUT)/build
113         $(Q)mkdir -p $(RTE_OUTPUT)/include
114         $(Q)$(RTE_SDK)/scripts/gen-config-h.sh $(RTE_OUTPUT)/.config \
115                 > $(RTE_OUTPUT)/include/rte_config.h
116
117 # generate the rte_config.h
118 .PHONY: headerconfig
119 headerconfig: $(RTE_OUTPUT)/include/rte_config.h
120         @true
121
122 # check that .config is present, and if yes, check that rte_config.h
123 # is up to date
124 .PHONY: checkconfig
125 checkconfig:
126         @if [ ! -f $(RTE_OUTPUT)/.config ]; then \
127                 echo "No .config in build directory"; \
128                 exit 1; \
129         fi
130         $(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkconfig.mk \
131                 headerconfig NODOTCONF=1
132         $(Q)$(MAKE) -s depdirs
133
134 .PHONY: FORCE
135 FORCE: