diff options
Diffstat (limited to 'share/cmake-3.10/Modules/CMakeParseImplicitLinkInfo.cmake')
-rw-r--r-- | share/cmake-3.10/Modules/CMakeParseImplicitLinkInfo.cmake | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/share/cmake-3.10/Modules/CMakeParseImplicitLinkInfo.cmake b/share/cmake-3.10/Modules/CMakeParseImplicitLinkInfo.cmake new file mode 100644 index 0000000..63d18ab --- /dev/null +++ b/share/cmake-3.10/Modules/CMakeParseImplicitLinkInfo.cmake @@ -0,0 +1,187 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + + +# 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 "${line}") + list(GET args 0 cmd) + endif() + set(is_msvc 0) + if("${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.*|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() |