Commit b9850a61 authored by Brad King's avatar Brad King
Browse files

Log implicit link information parsing actions

This commit teaches the CMAKE_PARSE_IMPLICIT_LINK_INFO function to log
its actions.  We store the log in CMakeFiles/CMakeOutput.log at the top
of the project build tree.  This will make diagnosis of implicit link
information parsing problems easier.
parent 80533948
......@@ -66,7 +66,9 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ABI lang src)
AND NOT "${CMAKE_OSX_ARCHITECTURES}" MATCHES ";"
# Skip this with Xcode for now.
AND NOT "${CMAKE_GENERATOR}" MATCHES Xcode)
CMAKE_PARSE_IMPLICIT_LINK_INFO("${OUTPUT}" implicit_libs implicit_dirs)
CMAKE_PARSE_IMPLICIT_LINK_INFO("${OUTPUT}" implicit_libs implicit_dirs log)
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Parsed ${lang} implicit link information from above output:\n${log}\n\n")
ENDIF()
SET(CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES "${implicit_libs}" PARENT_SCOPE)
SET(CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES "${implicit_dirs}" PARENT_SCOPE)
......
......@@ -16,9 +16,10 @@
# 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)
function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var log_var)
set(implicit_libs "")
set(implicit_dirs_tmp)
set(log "")
# Parse implicit linker arguments.
set(linker "CMAKE_LINKER-NOTFOUND")
......@@ -38,38 +39,51 @@ function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var)
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 ${lib})
set(log "${log} arg [${arg}] ==> lib [${lib}]\n")
elseif("${arg}" MATCHES "^(.:)?[/\\].*\\.a$")
# Unix library full path.
list(APPEND implicit_libs ${arg})
set(log "${log} arg [${arg}] ==> lib [${arg}]\n")
elseif("${arg}" MATCHES "^-Y(P,)?")
# Sun search path.
string(REGEX REPLACE "^-Y(P,)?" "" dirs "${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 ${arg})
set(log "${log} arg [${arg}] ==> lib [${arg}]\n")
elseif("${arg}" MATCHES "^-z(all|default|weak)extract")
# Link editor option.
list(APPEND implicit_libs ${arg})
set(log "${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: [${line}]\n")
endif()
endforeach()
......@@ -78,10 +92,16 @@ function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var)
foreach(d IN LISTS implicit_dirs_tmp)
get_filename_component(dir "${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()
......@@ -339,7 +339,7 @@ list(APPEND platforms msys_g77)
# Test parsing for all above examples.
foreach(p IN LISTS platforms)
cmake_parse_implicit_link_info("${${p}_text}" libs dirs)
cmake_parse_implicit_link_info("${${p}_text}" libs dirs log)
foreach(v libs dirs)
if(NOT "${${v}}" STREQUAL "${${p}_${v}}")
......@@ -349,6 +349,8 @@ foreach(p IN LISTS platforms)
" [${${p}_${v}}]\n"
"but got\n"
" [${${v}}]\n"
"Parse log was:\n"
"${log}"
)
endif()
endforeach()
......
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