summaryrefslogtreecommitdiff
path: root/Modules/CMakeParseImplicitIncludeInfo.cmake
blob: 1ebd887bc4b2d5e04775b8c2f0ef6181cf3a4bd1 (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
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
# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.

# This is used internally by CMake and should not be included by user code.

# helper function that parses implicit include dirs from a single line
# for compilers that report them that way.  on success we return the
# list of dirs in id_var and set state_var to the 'done' state.
function(cmake_parse_implicit_include_line line lang id_var log_var state_var)
  # clear variables we append to (avoids possible pollution from parent scopes)
  unset(rv)
  set(log "")

  # Cray compiler (from cray wrapper, via PrgEnv-cray)
  if(CMAKE_${lang}_COMPILER_ID STREQUAL "Cray" AND
     line MATCHES "^/" AND line MATCHES "/ccfe |/ftnfe " AND
     line MATCHES " -isystem| -I")
    string(REGEX MATCHALL " (-I ?|-isystem )(\"[^\"]+\"|[^ \"]+)" incs "${line}")
    foreach(inc IN LISTS incs)
      string(REGEX REPLACE " (-I ?|-isystem )(\"[^\"]+\"|[^ \"]+)" "\\2" idir "${inc}")
      list(APPEND rv "${idir}")
    endforeach()
    if(rv)
      string(APPEND log "  got implicit includes via cray ccfe parser!\n")
    else()
      string(APPEND log "  warning: cray ccfe parse failed!\n")
    endif()
  endif()

  # PGI compiler
  if(CMAKE_${lang}_COMPILER_ID STREQUAL "PGI")
    # pgc++ verbose output differs
    if((lang STREQUAL "C" OR lang STREQUAL "Fortran") AND
        line MATCHES "^/" AND
        line MATCHES "/pgc |/pgf901 |/pgftnc " AND
        line MATCHES " -cmdline ")
      # cmdline has unparsed cmdline, remove it
      string(REGEX REPLACE "-cmdline .*" "" line "${line}")
      if("${line}" MATCHES " -nostdinc ")
        set(rv "")    # defined, but empty
      else()
        string(REGEX MATCHALL " -stdinc ([^ ]*)" incs "${line}")
        foreach(inc IN LISTS incs)
          string(REGEX REPLACE " -stdinc ([^ ]*)" "\\1" idir "${inc}")
          string(REPLACE ":" ";" idir "${idir}")
          list(APPEND rv ${idir})
        endforeach()
      endif()
      if(DEFINED rv)
        string(APPEND log "  got implicit includes via PGI C/F parser!\n")
      else()
        string(APPEND log "  warning: PGI C/F parse failed!\n")
      endif()
    elseif(lang STREQUAL "CXX" AND line MATCHES "^/" AND
           line MATCHES "/pggpp1 " AND line MATCHES " -I")
      # oddly, -Mnostdinc does not get rid of system -I's, at least in
      # PGI 18.10.1 ...
      string(REGEX MATCHALL " (-I ?)([^ ]*)" incs "${line}")
      foreach(inc IN LISTS incs)
        string(REGEX REPLACE " (-I ?)([^ ]*)" "\\2" idir "${inc}")
        if(NOT idir STREQUAL "-")   # filter out "-I-"
          list(APPEND rv "${idir}")
        endif()
      endforeach()
      if(DEFINED rv)
        string(APPEND log "  got implicit includes via PGI CXX parser!\n")
      else()
        string(APPEND log "  warning: PGI CXX parse failed!\n")
      endif()
    endif()
  endif()

  # SunPro compiler
  if(CMAKE_${lang}_COMPILER_ID STREQUAL "SunPro" AND
     (line MATCHES "-D__SUNPRO_C" OR line MATCHES "-D__SUNPRO_F"))
    string(REGEX MATCHALL " (-I ?)([^ ]*)" incs "${line}")
    foreach(inc IN LISTS incs)
      string(REGEX REPLACE " (-I ?)([^ ]*)" "\\2" idir "${inc}")
      if(NOT "${idir}" STREQUAL "-xbuiltin")
        list(APPEND rv "${idir}")
      endif()
    endforeach()
    if(rv)
      if (lang STREQUAL "C" OR lang STREQUAL "CXX")
        # /usr/include appears to be hardwired in
        list(APPEND rv "/usr/include")
      endif()
      string(APPEND log "  got implicit includes via sunpro parser!\n")
    else()
      string(APPEND log "  warning: sunpro parse failed!\n")
    endif()
  endif()

  # XL compiler
  if((CMAKE_${lang}_COMPILER_ID STREQUAL "XL"
      OR CMAKE_${lang}_COMPILER_ID STREQUAL "XLClang")
     AND line MATCHES "^/"
     AND ( (lang STREQUAL "Fortran" AND
            line MATCHES "/xl[fF]entry " AND
            line MATCHES "OSVAR\\([^ ]+\\)")
           OR
            ( (lang STREQUAL "C" OR lang STREQUAL "CXX") AND
            line MATCHES "/xl[cC]2?entry " AND
            line MATCHES " -qosvar=")
         )  )
    # -qnostdinc cancels other stdinc flags, even if present
    string(FIND "${line}" " -qnostdinc" nostd)
    if(NOT nostd EQUAL -1)
      set(rv "")    # defined but empty
      string(APPEND log "  got implicit includes via XL parser (nostdinc)\n")
    else()
      if(lang STREQUAL "CXX")
        string(REGEX MATCHALL " -qcpp_stdinc=([^ ]*)" std "${line}")
        string(REGEX MATCHALL " -qgcc_cpp_stdinc=([^ ]*)" gcc_std "${line}")
      else()
        string(REGEX MATCHALL " -qc_stdinc=([^ ]*)" std "${line}")
        string(REGEX MATCHALL " -qgcc_c_stdinc=([^ ]*)" gcc_std "${line}")
      endif()
      set(xlstd ${std} ${gcc_std})
      foreach(inc IN LISTS xlstd)
        string(REGEX REPLACE " -q(cpp|gcc_cpp|c|gcc_c)_stdinc=([^ ]*)" "\\2"
               ipath "${inc}")
        string(REPLACE ":" ";" ipath "${ipath}")
        list(APPEND rv ${ipath})
      endforeach()
    endif()
    # user can add -I flags via CMAKE_{C,CXX}_FLAGS, look for that too
    string(REGEX MATCHALL " (-I ?)([^ ]*)" incs "${line}")
    unset(urv)
    foreach(inc IN LISTS incs)
      string(REGEX REPLACE " (-I ?)([^ ]*)" "\\2" idir "${inc}")
      list(APPEND urv "${idir}")
    endforeach()
    if(urv)
      if ("${rv}" STREQUAL "")
        set(rv ${urv})
      else()
        list(APPEND rv ${urv})
      endif()
    endif()

    if(DEFINED rv)
      string(APPEND log "  got implicit includes via XL parser!\n")
    else()
      string(APPEND log "  warning: XL parse failed!\n")
    endif()
  endif()

  # Fujitsu compiler
  if(CMAKE_${lang}_COMPILER_ID STREQUAL "Fujitsu" AND
     line MATCHES "/ccpcom")
    string(REGEX MATCHALL " (-I *|--sys_include=|--preinclude +)(\"[^\"]+\"|[^ \"]+)" incs "${line}")
    foreach(inc IN LISTS incs)
      string(REGEX REPLACE " (-I *|--sys_include=|--preinclude +)(\"[^\"]+\"|[^ \"]+)" "\\2" idir "${inc}")
      list(APPEND rv "${idir}")
    endforeach()
    if(rv)
      string(APPEND log "  got implicit includes via fujitsu ccpcom parser!\n")
    else()
      string(APPEND log "  warning: fujitsu ccpcom parse failed!\n")
    endif()
  endif()

  if(log)
    set(${log_var} "${log}" PARENT_SCOPE)
  else()
    unset(${log_var} PARENT_SCOPE)
  endif()
  if(DEFINED rv)
    set(${id_var} "${rv}" PARENT_SCOPE)
    set(${state_var} "done" PARENT_SCOPE)
  endif()
endfunction()

# top-level function to parse implicit include directory information
# from verbose compiler output. sets state_var in parent to 'done' on success.
function(cmake_parse_implicit_include_info text lang dir_var log_var state_var)
  set(state start)    # values: start, loading, done

  # clear variables we append to (avoids possible pollution from parent scopes)
  set(implicit_dirs_tmp)
  set(log "")

  # go through each line of output...
  string(REGEX REPLACE "\r*\n" ";" output_lines "${text}")
  foreach(line IN LISTS output_lines)
    if(state STREQUAL start)
      string(FIND "${line}" "#include \"...\" search starts here:" rv)
      if(rv GREATER -1)
        set(state loading)
        set(preload 1)      # looking for include <...> now
        string(APPEND log "  found start of include info\n")
      else()
        cmake_parse_implicit_include_line("${line}" "${lang}" implicit_dirs_tmp
                                          linelog state)
        if(linelog)
          string(APPEND log ${linelog})
        endif()
        if(state STREQUAL done)
          break()
        endif()
      endif()
    elseif(state STREQUAL loading)
      string(FIND "${line}" "End of search list." rv)
      if(rv GREATER -1)
        set(state done)
        string(APPEND log "  end of search list found\n")
        break()
      endif()
      if(preload)
        string(FIND "${line}" "#include <...> search starts here:" rv)
        if(rv GREATER -1)
          set(preload 0)
          string(APPEND log "  found start of implicit include info\n")
        endif()
        continue()
      endif()
      if("${line}" MATCHES "^ ")
        string(SUBSTRING "${line}" 1 -1 line)  # remove leading space
      endif()
      if ("${line}" MATCHES " \\(framework directory\\)$")
        continue() # frameworks are handled elsewhere, ignore them here
      endif()
      string(REPLACE "\\" "/" path "${line}")
      list(APPEND implicit_dirs_tmp "${path}")
      string(APPEND log "    add: [${path}]\n")
    endif()
  endforeach()

  set(implicit_dirs "")
  foreach(d IN LISTS implicit_dirs_tmp)
    if(IS_ABSOLUTE "${d}")
      get_filename_component(dir "${d}" ABSOLUTE)
      list(APPEND implicit_dirs "${dir}")
      string(APPEND log "  collapse include dir [${d}] ==> [${dir}]\n")
    elseif("${d}" MATCHES [[^\.\.[\/]\.\.[\/]\.\.[\/](.*)$]])
      # This relative path is deep enough to get out of the
      #     CMakeFiles/CMakeScratch/<unique>
      # directory where the ABI check is done.  Assume that the compiler has
      # computed this path adaptively based on the current working directory
      # such that the effective result is absolute.
      get_filename_component(dir "${CMAKE_BINARY_DIR}/${CMAKE_MATCH_1}" ABSOLUTE)
      list(APPEND implicit_dirs "${dir}")
      string(APPEND log "  collapse relative include dir [${d}] ==> [${dir}]\n")
    else()
      string(APPEND log "  skipping relative include dir [${d}]\n")
    endif()
  endforeach()
  list(REMOVE_DUPLICATES implicit_dirs)

  # Log results.
  if(state STREQUAL done)
    string(APPEND log "  implicit include dirs: [${implicit_dirs}]\n")
  else()
    string(APPEND log "  warn: unable to parse implicit include dirs!\n")
  endif()

  # Return results.
  set(${dir_var} "${implicit_dirs}" PARENT_SCOPE)
  set(${log_var} "${log}" PARENT_SCOPE)
  set(${state_var} "${state}" PARENT_SCOPE)

endfunction()