rte.vars.mk revision 3d9b7210
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#
33# To be included at the beginning of all RTE user Makefiles. This
34# .mk will define the RTE environment variables by including the
35# config file of SDK. It also includes the config file from external
36# application if any.
37#
38
39ifeq ($(RTE_SDK),)
40$(error RTE_SDK is not defined)
41endif
42ifeq ($(wildcard $(RTE_SDK)),)
43$(error RTE_SDK variable points to an invalid location)
44endif
45
46# define Q to '@' or not. $(Q) is used to prefix all shell commands to
47# be executed silently.
48Q=@
49ifeq '$V' '0'
50override V=
51endif
52ifdef V
53ifeq ("$(origin V)", "command line")
54Q=
55endif
56endif
57export Q
58
59# if we are building SDK, only includes SDK configuration
60ifneq ($(BUILDING_RTE_SDK),)
61  include $(RTE_OUTPUT)/.config
62  # remove double-quotes from config names
63  RTE_ARCH := $(CONFIG_RTE_ARCH:"%"=%)
64  RTE_MACHINE := $(CONFIG_RTE_MACHINE:"%"=%)
65  RTE_EXEC_ENV := $(CONFIG_RTE_EXEC_ENV:"%"=%)
66  RTE_TOOLCHAIN := $(CONFIG_RTE_TOOLCHAIN:"%"=%)
67  RTE_SDK_BIN := $(RTE_OUTPUT)
68endif
69
70RTE_TARGET ?= $(RTE_ARCH)-$(RTE_MACHINE)-$(RTE_EXEC_ENV)-$(RTE_TOOLCHAIN)
71
72ifeq ($(BUILDING_RTE_SDK),)
73# if we are building an external app/lib, include internal/rte.extvars.mk that will
74# define RTE_OUTPUT, RTE_SRCDIR, RTE_EXTMK, RTE_SDK_BIN, (etc ...)
75include $(RTE_SDK)/mk/internal/rte.extvars.mk
76endif
77
78CONFIG_RTE_LIBRTE_E1000_PMD = $(CONFIG_RTE_LIBRTE_IGB_PMD)
79ifneq ($(CONFIG_RTE_LIBRTE_E1000_PMD),y)
80  CONFIG_RTE_LIBRTE_E1000_PMD = $(CONFIG_RTE_LIBRTE_EM_PMD)
81endif
82
83ifeq ($(RTE_ARCH),)
84$(error RTE_ARCH is not defined)
85endif
86
87ifeq ($(RTE_MACHINE),)
88$(error RTE_MACHINE is not defined)
89endif
90
91ifeq ($(RTE_EXEC_ENV),)
92$(error RTE_EXEC_ENV is not defined)
93endif
94
95ifeq ($(RTE_TOOLCHAIN),)
96$(error RTE_TOOLCHAIN is not defined)
97endif
98
99# can be overriden by make command line or exported environment variable
100RTE_KERNELDIR ?= /lib/modules/$(shell uname -r)/build
101
102export RTE_TARGET
103export RTE_ARCH
104export RTE_MACHINE
105export RTE_EXEC_ENV
106export RTE_TOOLCHAIN
107
108# developer build automatically enabled in a git tree
109ifneq ($(wildcard $(RTE_SDK)/.git),)
110RTE_DEVEL_BUILD ?= y
111endif
112
113# SRCDIR is the current source directory
114ifdef S
115SRCDIR := $(abspath $(RTE_SRCDIR)/$(S))
116else
117SRCDIR := $(RTE_SRCDIR)
118endif
119
120# helper: return y if option is set to y, else return an empty string
121testopt = $(if $(strip $(subst y,,$(1)) $(subst $(1),,y)),,y)
122
123# helper: return an empty string if option is set, else return y
124not = $(if $(strip $(subst y,,$(1)) $(subst $(1),,y)),,y)
125
126ifneq ($(wildcard $(RTE_SDK)/mk/target/$(RTE_TARGET)/rte.vars.mk),)
127include $(RTE_SDK)/mk/target/$(RTE_TARGET)/rte.vars.mk
128else
129include $(RTE_SDK)/mk/target/generic/rte.vars.mk
130endif
131