204 lines
8.5 KiB
CMake
204 lines
8.5 KiB
CMake
# 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 parse implicit linker options.
|
|
# This is used internally by CMake and should not be included by user
|
|
# code.
|
|
|
|
function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var fwk_var log_var obj_regex)
|
|
set(implicit_libs_tmp "")
|
|
set(implicit_dirs_tmp)
|
|
set(implicit_fwks_tmp)
|
|
set(log "")
|
|
|
|
# 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)
|
|
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}")
|
|
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$"
|
|
AND obj_regex AND "${arg}" MATCHES "${obj_regex}")
|
|
# Object file full path.
|
|
list(APPEND implicit_libs_tmp ${arg})
|
|
string(APPEND log " arg [${arg}] ==> obj [${arg}]\n")
|
|
elseif("${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}" 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 "^x(crt.*\\.o|gcc_eh.*|.*libgcc_eh.*|System.*|.*libclang_rt.*|msvcrt.*|libvcruntime.*|libucrt.*|libcmt.*)$")
|
|
string(APPEND log " remove lib [${lib}]\n")
|
|
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()
|
|
|
|
# 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: [${implicit_libs}]\n")
|
|
string(APPEND log " implicit dirs: [${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)
|
|
endfunction()
|
|
|
|
cmake_policy(POP)
|