blob: a61f71b117be8f7e61cd17b42b23418f4d648d25 (
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
264
265
266
267
268
269
270
271
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
cmake_policy(PUSH)
cmake_policy(SET CMP0053 NEW)
cmake_policy(SET CMP0054 NEW)
# Function to parse implicit linker options.
#
# This is used internally by CMake and should not be included by user
# code.
#
# Note: this function is leaked/exposed by FindOpenMP and therefore needs
# to have a stable API so projects that copied `FindOpenMP` for backwards
# compatibility don't break.
#
function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var fwk_var log_var obj_regex)
set(implicit_libs_tmp "")
set(implicit_objs_tmp "")
set(implicit_dirs_tmp)
set(implicit_fwks_tmp)
set(log "")
set(keywordArgs)
set(oneValueArgs COMPUTE_IMPLICIT_OBJECTS)
set(multiValueArgs )
cmake_parse_arguments(EXTRA_PARSE "${keywordArgs}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
# Parse implicit linker arguments.
set(linker "CMAKE_LINKER-NOTFOUND")
if(CMAKE_LINKER)
get_filename_component(linker ${CMAKE_LINKER} NAME)
string(REGEX REPLACE "([][+.*?()^$])" "\\\\\\1" linker "${linker}")
endif()
set(startfile "CMAKE_LINK_STARTFILE-NOTFOUND")
if(CMAKE_LINK_STARTFILE)
set(startfile "${CMAKE_LINK_STARTFILE}")
endif()
# Construct a regex to match linker lines. It must match both the
# whole line and just the command (argv[0]).
set(linker_regex "^( *|.*[/\\])(${linker}|${startfile}|([^/\\]+-)?ld|collect2)[^/\\]*( |$)")
set(linker_exclude_regex "collect2 version |^[A-Za-z0-9_]+=|/ldfe ")
string(APPEND log " link line regex: [${linker_regex}]\n")
string(REGEX REPLACE "\r?\n" ";" output_lines "${text}")
foreach(line IN LISTS output_lines)
set(cmd)
if("${line}" MATCHES "${linker_regex}" AND
NOT "${line}" MATCHES "${linker_exclude_regex}")
if(XCODE)
# Xcode unconditionally adds a path under the project build tree and
# on older versions it is not reported with proper quotes. Remove it.
string(REGEX REPLACE "([][+.*()^])" "\\\\\\1" _dir_regex "${CMAKE_BINARY_DIR}")
string(REGEX REPLACE " -[FL]${_dir_regex}/([^ ]| [^-])+( |$)" " " xline "${line}")
if(NOT "x${xline}" STREQUAL "x${line}")
string(APPEND log " reduced line: [${line}]\n to: [${xline}]\n")
set(line "${xline}")
endif()
endif()
separate_arguments(args NATIVE_COMMAND "${line}")
list(GET args 0 cmd)
else()
#check to see if the link line is comma-separated instead of space separated
string(REGEX REPLACE "," " " line "${line}")
if("${line}" MATCHES "${linker_regex}" AND
NOT "${line}" MATCHES "${linker_exclude_regex}")
separate_arguments(args NATIVE_COMMAND "${line}")
list(GET args 0 cmd)
if("${cmd}" MATCHES "exec:")
# ibm xl sometimes has 'exec: ' in-front of the linker
list(GET args 1 cmd)
endif()
endif()
endif()
set(is_msvc 0)
set(search_static 0)
if("${cmd}" MATCHES "${linker_regex}")
string(APPEND log " link line: [${line}]\n")
string(REGEX REPLACE ";-([LYz]);" ";-\\1" args "${args}")
set(skip_value_of "")
foreach(arg IN LISTS args)
if(skip_value_of)
string(APPEND log " arg [${arg}] ==> skip value of ${skip_value_of}\n")
set(skip_value_of "")
elseif("${arg}" MATCHES "^-L(.:)?[/\\]")
# Unix search path.
string(REGEX REPLACE "^-L" "" dir "${arg}")
list(APPEND implicit_dirs_tmp ${dir})
string(APPEND log " arg [${arg}] ==> dir [${dir}]\n")
elseif("${arg}" MATCHES "^[-/](LIBPATH|libpath):(.+)")
# MSVC search path.
set(dir "${CMAKE_MATCH_2}")
list(APPEND implicit_dirs_tmp ${dir})
string(APPEND log " arg [${arg}] ==> dir [${dir}]\n")
elseif(is_msvc AND "${arg}" STREQUAL "-link")
string(APPEND log " arg [${arg}] ==> ignore MSVC cl option\n")
elseif(is_msvc AND "${arg}" MATCHES "^(.*\\.[Ll][Ii][Bb])$")
set(lib "${CMAKE_MATCH_1}")
list(APPEND implicit_libs_tmp ${lib})
string(APPEND log " arg [${arg}] ==> lib [${lib}]\n")
elseif("${arg}" STREQUAL "-lto_library")
# ld argument "-lto_library <path>"
set(skip_value_of "${arg}")
string(APPEND log " arg [${arg}] ==> ignore, skip following value\n")
elseif("${arg}" MATCHES "^-l([^:].*)$")
# Unix library.
set(lib "${CMAKE_MATCH_1}")
if(search_static AND lib MATCHES "^(gfortran|stdc\\+\\+)$")
# Search for the static library later, once all link dirs are known.
set(lib "SEARCH_STATIC:${lib}")
endif()
list(APPEND implicit_libs_tmp ${lib})
string(APPEND log " arg [${arg}] ==> lib [${lib}]\n")
elseif("${arg}" MATCHES "^(.:)?[/\\].*\\.a$")
# Unix library full path.
list(APPEND implicit_libs_tmp ${arg})
string(APPEND log " arg [${arg}] ==> lib [${arg}]\n")
elseif("${arg}" MATCHES "^[-/](DEFAULTLIB|defaultlib):(.+)")
# Windows library.
set(lib "${CMAKE_MATCH_2}")
list(APPEND implicit_libs_tmp ${lib})
string(APPEND log " arg [${arg}] ==> lib [${lib}]\n")
elseif("${arg}" MATCHES "^(.:)?[/\\].*\\.o$")
if(EXTRA_PARSE_COMPUTE_IMPLICIT_OBJECTS)
list(APPEND implicit_objs_tmp ${arg})
string(APPEND log " arg [${arg}] ==> obj [${arg}]\n")
endif()
if(obj_regex AND "${arg}" MATCHES "${obj_regex}")
# Object file full path.
list(APPEND implicit_libs_tmp ${arg})
endif()
elseif("${arg}" MATCHES "^-Y(P,)?[^0-9]")
# Sun search path ([^0-9] avoids conflict with Mac -Y<num>).
string(REGEX REPLACE "^-Y(P,)?" "" dirs "${arg}")
string(REPLACE ":" ";" dirs "${dirs}")
list(APPEND implicit_dirs_tmp ${dirs})
string(APPEND log " arg [${arg}] ==> dirs [${dirs}]\n")
elseif("${arg}" STREQUAL "-Bstatic")
set(search_static 1)
string(APPEND log " arg [${arg}] ==> search static\n" )
elseif("${arg}" STREQUAL "-Bdynamic")
set(search_static 0)
string(APPEND log " arg [${arg}] ==> search dynamic\n" )
elseif("${arg}" MATCHES "^-l:")
# HP named library.
list(APPEND implicit_libs_tmp ${arg})
string(APPEND log " arg [${arg}] ==> lib [${arg}]\n")
elseif("${arg}" MATCHES "^-z(all|default|weak)extract")
# Link editor option.
list(APPEND implicit_libs_tmp ${arg})
string(APPEND log " arg [${arg}] ==> opt [${arg}]\n")
elseif("${arg}" STREQUAL "cl.exe")
string(APPEND log " arg [${arg}] ==> recognize MSVC cl\n")
set(is_msvc 1)
else()
string(APPEND log " arg [${arg}] ==> ignore\n")
endif()
endforeach()
break()
elseif("${line}" MATCHES "LPATH(=| is:? *)(.*)$")
string(APPEND log " LPATH line: [${line}]\n")
# HP search path.
string(REPLACE ":" ";" paths "${CMAKE_MATCH_2}")
list(APPEND implicit_dirs_tmp ${paths})
string(APPEND log " dirs [${paths}]\n")
else()
string(APPEND log " ignore line: [${line}]\n")
endif()
endforeach()
# Look for library search paths reported by linker.
if("${output_lines}" MATCHES ";Library search paths:((;\t[^;]+)+)")
string(REPLACE ";\t" ";" implicit_dirs_match "${CMAKE_MATCH_1}")
string(APPEND log " Library search paths: [${implicit_dirs_match}]\n")
list(APPEND implicit_dirs_tmp ${implicit_dirs_match})
endif()
if("${output_lines}" MATCHES ";Framework search paths:((;\t[^;]+)+)")
string(REPLACE ";\t" ";" implicit_fwks_match "${CMAKE_MATCH_1}")
string(APPEND log " Framework search paths: [${implicit_fwks_match}]\n")
list(APPEND implicit_fwks_tmp ${implicit_fwks_match})
endif()
# Cleanup list of libraries and flags.
# We remove items that are not language-specific.
set(implicit_libs "")
foreach(lib IN LISTS implicit_libs_tmp)
if("x${lib}" MATCHES "^xSEARCH_STATIC:(.*)")
set(search_static 1)
set(lib "${CMAKE_MATCH_1}")
else()
set(search_static 0)
endif()
if("x${lib}" MATCHES "^x(crt.*\\.o|gcc_eh.*|.*libgcc_eh.*|System.*|.*libclang_rt.*|msvcrt.*|libvcruntime.*|libucrt.*|libcmt.*)$")
string(APPEND log " remove lib [${lib}]\n")
elseif(search_static)
# This library appears after a -Bstatic flag. Due to ordering
# and filtering for mixed-language link lines, we do not preserve
# the -Bstatic flag itself. Instead, use an absolute path.
# Search using a temporary variable with a distinct name
# so that our test suite does not depend on disk content.
find_library("CMAKE_${lang}_IMPLICIT_LINK_LIBRARY_${lib}" NO_CACHE NAMES "lib${lib}.a" NO_DEFAULT_PATH PATHS ${implicit_dirs_tmp})
set(_lib_static "${CMAKE_${lang}_IMPLICIT_LINK_LIBRARY_${lib}}")
if(_lib_static)
string(APPEND log " search lib [SEARCH_STATIC:${lib}] ==> [${_lib_static}]\n")
list(APPEND implicit_libs "${_lib_static}")
else()
string(APPEND log " search lib [SEARCH_STATIC:${lib}] ==> [${lib}]\n")
list(APPEND implicit_libs "${lib}")
endif()
elseif(IS_ABSOLUTE "${lib}")
get_filename_component(abs "${lib}" ABSOLUTE)
if(NOT "x${lib}" STREQUAL "x${abs}")
string(APPEND log " collapse lib [${lib}] ==> [${abs}]\n")
endif()
list(APPEND implicit_libs "${abs}")
else()
list(APPEND implicit_libs "${lib}")
endif()
endforeach()
if(EXTRA_PARSE_COMPUTE_IMPLICIT_OBJECTS)
set(implicit_objs "")
foreach(obj IN LISTS implicit_objs_tmp)
if(IS_ABSOLUTE "${obj}")
get_filename_component(abs "${obj}" ABSOLUTE)
if(NOT "x${obj}" STREQUAL "x${abs}")
string(APPEND log " collapse obj [${obj}] ==> [${abs}]\n")
endif()
list(APPEND implicit_objs "${abs}")
else()
list(APPEND implicit_objs "${obj}")
endif()
endforeach()
endif()
# Cleanup list of library and framework directories.
set(desc_dirs "library")
set(desc_fwks "framework")
foreach(t dirs fwks)
set(implicit_${t} "")
foreach(d IN LISTS implicit_${t}_tmp)
get_filename_component(dir "${d}" ABSOLUTE)
string(FIND "${dir}" "${CMAKE_FILES_DIRECTORY}/" pos)
if(NOT pos LESS 0)
set(msg ", skipping non-system directory")
else()
set(msg "")
list(APPEND implicit_${t} "${dir}")
endif()
string(APPEND log " collapse ${desc_${t}} dir [${d}] ==> [${dir}]${msg}\n")
endforeach()
list(REMOVE_DUPLICATES implicit_${t})
endforeach()
# Log results.
string(APPEND log " implicit libs: [${implicit_libs}]\n")
string(APPEND log " implicit objs: [${implicit_objs}]\n")
string(APPEND log " implicit dirs: [${implicit_dirs}]\n")
string(APPEND log " implicit fwks: [${implicit_fwks}]\n")
# Return results.
set(${lib_var} "${implicit_libs}" PARENT_SCOPE)
set(${dir_var} "${implicit_dirs}" PARENT_SCOPE)
set(${fwk_var} "${implicit_fwks}" PARENT_SCOPE)
set(${log_var} "${log}" PARENT_SCOPE)
if(EXTRA_PARSE_COMPUTE_IMPLICIT_OBJECTS)
set(${EXTRA_PARSE_COMPUTE_IMPLICIT_OBJECTS} "${implicit_objs}" PARENT_SCOPE)
endif()
endfunction()
cmake_policy(POP)
|
