aboutsummaryrefslogtreecommitdiffstats
path: root/src/cmake/api.cmake
blob: 0e273a7d4dc3b4284401c5e25d0f71c6cd7cecfa (plain)
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
# Copyright (c) 2018 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

##############################################################################
# API
##############################################################################
function(vpp_generate_api_c_header file)
  set (output_name ${CMAKE_CURRENT_BINARY_DIR}/${file}.h)
  get_filename_component(output_dir ${output_name} DIRECTORY)
  if(NOT VPP_APIGEN)
     set(VPP_APIGEN ${CMAKE_SOURCE_DIR}/tools/vppapigen/vppapigen)
  endif()
  if (VPP_INCLUDE_DIR)
    set(includedir "--includedir" ${VPP_INCLUDE_DIR})
  endif()

  set(OUTPUT_HEADERS
    "${CMAKE_CURRENT_BINARY_DIR}/${file}.h"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}_fromjson.h"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}_tojson.h"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}_enum.h"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}_types.h"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}.c"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}_test.c"
    "${CMAKE_CURRENT_BINARY_DIR}/${file}_test2.c"
  )

  add_custom_command (
    OUTPUT ${OUTPUT_HEADERS}
    COMMAND mkdir -p ${output_dir}
    COMMAND ${PYENV} ${VPP_APIGEN}
    ARGS ${includedir} --includedir ${CMAKE_SOURCE_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/${file} --outputdir ${output_dir} --output ${output_name}
    DEPENDS ${VPP_APIGEN} ${CMAKE_CURRENT_SOURCE_DIR}/${file}
    COMMENT "Generating API header ${output_name}"
  )
  get_filename_component(barename ${file} NAME)
  set(t ${barename}_deps)
  if (NOT TARGET ${t})
    add_custom_target(${t} ALL DEPENDS ${OUTPUT_HEADERS})
    add_dependencies(api_headers ${t})
  endif()

endfunction()

function(vpp_generate_api_json_header file dir component)
  set (output_name ${CMAKE_CURRENT_BINARY_DIR}/${file}.json)
  get_filename_component(output_dir ${output_name} DIRECTORY)
  if(NOT VPP_APIGEN)
     set(VPP_APIGEN ${CMAKE_SOURCE_DIR}/tools/vppapigen/vppapigen)
  endif()
  if (VPP_INCLUDE_DIR)
    set(includedir "--includedir" ${VPP_INCLUDE_DIR})
  endif()
  add_custom_command (OUTPUT ${output_name}
    COMMAND mkdir -p ${output_dir}
    COMMAND ${PYENV} ${VPP_APIGEN}
    ARGS ${includedir} --includedir ${CMAKE_SOURCE_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/${file} JSON --outputdir ${output_dir} --output ${output_name}
    DEPENDS ${VPP_APIGEN} ${CMAKE_CURRENT_SOURCE_DIR}/${file}
    COMMENT "Generating API header ${output_name}"
  )
  install(
    FILES ${output_name}
    DESTINATION share/vpp/api/${dir}/
    COMPONENT ${component}
  )
endfunction()

##############################################################################
# VPP-API
##############################################################################
function(vpp_generate_vapi_c_header f)
  get_filename_component(output ${f}.vapi.h NAME)
  set (output_name ${VPP_BINARY_DIR}/vpp-api/vapi/${output})
  if(NOT VPP_VAPI_C_GEN)
    set(VPP_VAPI_C_GEN ${CMAKE_SOURCE_DIR}/vpp-api/vapi/vapi_c_gen.py)
    set(VPP_VAPI_C_GEN_DEPENDS
        ${CMAKE_SOURCE_DIR}/vpp-api/vapi/vapi_c_gen.py
        ${CMAKE_SOURCE_DIR}/vpp-api/vapi/vapi_json_parser.py
    )
  endif()

  # C VAPI Headers
  set(input ${CMAKE_CURRENT_BINARY_DIR}/${f}.json)
  add_custom_command(
    OUTPUT ${output_name}
    WORKING_DIRECTORY ${VPP_BINARY_DIR}/vpp-api/vapi
    COMMAND ${PYENV} ${VPP_VAPI_C_GEN}
    ARGS --remove-path ${input}
    DEPENDS ${input} ${VPP_VAPI_C_GEN_DEPENDS}
    COMMENT "Generating VAPI C header ${output_name}"
  )
  install(
    FILES ${output_name}
    DESTINATION include/vapi
    COMPONENT vpp-dev
  )
endfunction ()

function (vpp_generate_vapi_cpp_header f)
  get_filename_component(output ${f}.vapi.hpp NAME)
  set (output_name ${VPP_BINARY_DIR}/vpp-api/vapi/${output})
  if(NOT VPP_VAPI_CPP_GEN)
    set(VPP_VAPI_CPP_GEN ${CMAKE_SOURCE_DIR}/vpp-api/vapi/vapi_cpp_gen.py)
    set(VPP_VAPI_CPP_GEN_DEPENDS
        ${CMAKE_SOURCE_DIR}/vpp-api/vapi/vapi_cpp_gen.py
        ${CMAKE_SOURCE_DIR}/vpp-api/vapi/vapi_json_parser.py
    )
  endif()
  # C++ VAPI Headers
  set(input ${CMAKE_CURRENT_BINARY_DIR}/${f}.json)
  add_custom_command(
    OUTPUT ${output_name}
    WORKING_DIRECTORY ${VPP_BINARY_DIR}/vpp-api/vapi
    COMMAND ${PYENV} ${VPP_VAPI_CPP_GEN}
    ARGS --gen-h-prefix=vapi --remove-path ${input}
    DEPENDS ${input} ${VPP_VAPI_CPP_GEN_DEPENDS}
    COMMENT "Generating VAPI C++ header ${output_name}"
  )
  install(
    FILES ${output_name}
    DESTINATION include/vapi
    COMPONENT vpp-dev
  )
endfunction ()


##############################################################################
# generate the .h and .json files for a .api file
#  @param file - the name of the .api
#  @param dir  - the install directory under ROOT/share/vpp/api to place the
#                generated .json file
##############################################################################
function(vpp_generate_api_header file dir component)
  vpp_generate_api_c_header (${file})
  vpp_generate_api_json_header (${file} ${dir} ${component})
  vpp_generate_vapi_c_header (${file})
  vpp_generate_vapi_cpp_header (${file})
endfunction()

function(vpp_add_api_files name dir component)
  unset(header_files)
  set(target ${name}_api_headers)
  file(RELATIVE_PATH rpath ${CMAKE_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
  foreach(file ${ARGN})
    vpp_generate_api_header (${file} ${dir} ${component})
    # Basic api headers get installed in a subdirectory according to
    # their component name, but vapi is expected to be found directly under
    # "vapi". Both by in-source components (e.g. vpp-api/vapi/vapi.c), and
    # out-of-tree plugins use #include <vapi/component.api.vapi.h>.
    # ${file} contains the subdirectory, so strip it here.
    get_filename_component(name ${file} NAME)
    list(APPEND header_files
      ${file}.h
      ${file}_enum.h
      ${file}_types.h
      ${file}.json
      ${VPP_BINARY_DIR}/vpp-api/vapi/${name}.vapi.h
      ${VPP_BINARY_DIR}/vpp-api/vapi/${name}.vapi.hpp
    )
  endforeach()
  add_custom_target(${target} DEPENDS ${header_files})
  add_dependencies(api_headers ${target})
endfunction()

add_custom_target(api_headers
  DEPENDS vlibmemory_api_headers vnet_api_headers vpp_api_headers vlib_api_headers
)