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Diffstat (limited to 'Modules/CMakeParseImplicitLinkInfo.cmake')
-rw-r--r-- | Modules/CMakeParseImplicitLinkInfo.cmake | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/Modules/CMakeParseImplicitLinkInfo.cmake b/Modules/CMakeParseImplicitLinkInfo.cmake new file mode 100644 index 000000000..ecb20dc6b --- /dev/null +++ b/Modules/CMakeParseImplicitLinkInfo.cmake @@ -0,0 +1,128 @@ + +#============================================================================= +# Copyright 2009 Kitware, Inc. +# +# Distributed under the OSI-approved BSD License (the "License"); +# see accompanying file Copyright.txt for details. +# +# This software is distributed WITHOUT ANY WARRANTY; without even the +# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# See the License for more information. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +# 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 log_var obj_regex) + set(implicit_libs_tmp "") + set(implicit_dirs_tmp) + set(log "") + + # Parse implicit linker arguments. + set(linker "CMAKE_LINKER-NOTFOUND") + if(CMAKE_LINKER) + get_filename_component(linker ${CMAKE_LINKER} NAME) + endif() + # Construct a regex to match linker lines. It must match both the + # whole line and just the command (argv[0]). + set(linker_regex "^( *|.*[/\\])(${linker}|ld|collect2)[^/\\]*( |$)") + set(linker_exclude_regex "collect2 version ") + set(log "${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(UNIX) + separate_arguments(args UNIX_COMMAND "${line}") + else() + separate_arguments(args WINDOWS_COMMAND "${line}") + endif() + list(GET args 0 cmd) + endif() + if("${cmd}" MATCHES "${linker_regex}") + set(log "${log} link line: [${line}]\n") + string(REGEX REPLACE ";-([LYz]);" ";-\\1" args "${args}") + foreach(arg IN LISTS args) + if("${arg}" MATCHES "^-L(.:)?[/\\]") + # Unix search path. + string(REGEX REPLACE "^-L" "" dir "${arg}") + list(APPEND implicit_dirs_tmp ${dir}) + set(log "${log} arg [${arg}] ==> dir [${dir}]\n") + elseif("${arg}" MATCHES "^-l[^:]") + # Unix library. + string(REGEX REPLACE "^-l" "" lib "${arg}") + list(APPEND implicit_libs_tmp ${lib}) + set(log "${log} arg [${arg}] ==> lib [${lib}]\n") + elseif("${arg}" MATCHES "^(.:)?[/\\].*\\.a$") + # Unix library full path. + list(APPEND implicit_libs_tmp ${arg}) + set(log "${log} arg [${arg}] ==> lib [${arg}]\n") + elseif("${arg}" MATCHES "^(.:)?[/\\].*\\.o$" + AND obj_regex AND "${arg}" MATCHES "${obj_regex}") + # Object file full path. + list(APPEND implicit_libs_tmp ${arg}) + set(log "${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 ${dirs}) + set(log "${log} arg [${arg}] ==> dirs [${dirs}]\n") + elseif("${arg}" MATCHES "^-l:") + # HP named library. + list(APPEND implicit_libs_tmp ${arg}) + set(log "${log} arg [${arg}] ==> lib [${arg}]\n") + elseif("${arg}" MATCHES "^-z(all|default|weak)extract") + # Link editor option. + list(APPEND implicit_libs_tmp ${arg}) + set(log "${log} arg [${arg}] ==> opt [${arg}]\n") + else() + set(log "${log} arg [${arg}] ==> ignore\n") + endif() + endforeach() + break() + elseif("${line}" MATCHES "LPATH(=| is:? )") + set(log "${log} LPATH line: [${line}]\n") + # HP search path. + string(REGEX REPLACE ".*LPATH(=| is:? *)" "" paths "${line}") + string(REPLACE ":" ";" paths "${paths}") + list(APPEND implicit_dirs_tmp ${paths}) + set(log "${log} dirs [${paths}]\n") + else() + set(log "${log} ignore line: [${line}]\n") + endif() + endforeach() + + # Cleanup list of libraries and flags. + # We remove items that are not language-specific. + set(implicit_libs "") + foreach(lib IN LISTS implicit_libs_tmp) + if("${lib}" MATCHES "^(crt.*\\.o|gcc.*|System.*)$") + set(log "${log} remove lib [${lib}]\n") + else() + list(APPEND implicit_libs "${lib}") + endif() + endforeach() + + # Cleanup list of directories. + set(implicit_dirs "") + foreach(d IN LISTS implicit_dirs_tmp) + get_filename_component(dir "${d}" ABSOLUTE) + list(APPEND implicit_dirs "${dir}") + set(log "${log} collapse dir [${d}] ==> [${dir}]\n") + endforeach() + list(REMOVE_DUPLICATES implicit_dirs) + + # Log results. + set(log "${log} implicit libs: [${implicit_libs}]\n") + set(log "${log} implicit dirs: [${implicit_dirs}]\n") + + # Return results. + set(${lib_var} "${implicit_libs}" PARENT_SCOPE) + set(${dir_var} "${implicit_dirs}" PARENT_SCOPE) + set(${log_var} "${log}" PARENT_SCOPE) +endfunction() |