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Diffstat (limited to 'Modules/GetPrerequisites.cmake')
| -rw-r--r-- | Modules/GetPrerequisites.cmake | 1047 |
1 files changed, 1047 insertions, 0 deletions
diff --git a/Modules/GetPrerequisites.cmake b/Modules/GetPrerequisites.cmake new file mode 100644 index 0000000..5c8c196 --- /dev/null +++ b/Modules/GetPrerequisites.cmake @@ -0,0 +1,1047 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + +#[=======================================================================[.rst: +GetPrerequisites +---------------- + +.. deprecated:: 3.16 + + Use :command:`file(GET_RUNTIME_DEPENDENCIES)` instead. + +Functions to analyze and list executable file prerequisites. + +This module provides functions to list the .dll, .dylib or .so files +that an executable or shared library file depends on. (Its +prerequisites.) + +It uses various tools to obtain the list of required shared library +files: + +:: + + dumpbin (Windows) + objdump (MinGW on Windows) + ldd (Linux/Unix) + otool (Mac OSX) + +The following functions are provided by this module: + +:: + + get_prerequisites + list_prerequisites + list_prerequisites_by_glob + gp_append_unique + is_file_executable + gp_item_default_embedded_path + (projects can override with gp_item_default_embedded_path_override) + gp_resolve_item + (projects can override with gp_resolve_item_override) + gp_resolved_file_type + (projects can override with gp_resolved_file_type_override) + gp_file_type + +Requires CMake 2.6 or greater because it uses function, break, return +and PARENT_SCOPE. + +:: + + GET_PREREQUISITES(<target> <prerequisites_var> <exclude_system> <recurse> + <exepath> <dirs> [<rpaths>]) + +Get the list of shared library files required by <target>. The list +in the variable named <prerequisites_var> should be empty on first +entry to this function. On exit, <prerequisites_var> will contain the +list of required shared library files. + +<target> is the full path to an executable file. <prerequisites_var> +is the name of a CMake variable to contain the results. +<exclude_system> must be 0 or 1 indicating whether to include or +exclude "system" prerequisites. If <recurse> is set to 1 all +prerequisites will be found recursively, if set to 0 only direct +prerequisites are listed. <exepath> is the path to the top level +executable used for @executable_path replacment on the Mac. <dirs> is +a list of paths where libraries might be found: these paths are +searched first when a target without any path info is given. Then +standard system locations are also searched: PATH, Framework +locations, /usr/lib... + +The variable GET_PREREQUISITES_VERBOSE can be set to true to enable verbose +output. + +:: + + LIST_PREREQUISITES(<target> [<recurse> [<exclude_system> [<verbose>]]]) + +Print a message listing the prerequisites of <target>. + +<target> is the name of a shared library or executable target or the +full path to a shared library or executable file. If <recurse> is set +to 1 all prerequisites will be found recursively, if set to 0 only +direct prerequisites are listed. <exclude_system> must be 0 or 1 +indicating whether to include or exclude "system" prerequisites. With +<verbose> set to 0 only the full path names of the prerequisites are +printed, set to 1 extra informatin will be displayed. + +:: + + LIST_PREREQUISITES_BY_GLOB(<glob_arg> <glob_exp>) + +Print the prerequisites of shared library and executable files +matching a globbing pattern. <glob_arg> is GLOB or GLOB_RECURSE and +<glob_exp> is a globbing expression used with "file(GLOB" or +"file(GLOB_RECURSE" to retrieve a list of matching files. If a +matching file is executable, its prerequisites are listed. + +Any additional (optional) arguments provided are passed along as the +optional arguments to the list_prerequisites calls. + +:: + + GP_APPEND_UNIQUE(<list_var> <value>) + +Append <value> to the list variable <list_var> only if the value is +not already in the list. + +:: + + IS_FILE_EXECUTABLE(<file> <result_var>) + +Return 1 in <result_var> if <file> is a binary executable, 0 +otherwise. + +:: + + GP_ITEM_DEFAULT_EMBEDDED_PATH(<item> <default_embedded_path_var>) + +Return the path that others should refer to the item by when the item +is embedded inside a bundle. + +Override on a per-project basis by providing a project-specific +gp_item_default_embedded_path_override function. + +:: + + GP_RESOLVE_ITEM(<context> <item> <exepath> <dirs> <resolved_item_var> + [<rpaths>]) + +Resolve an item into an existing full path file. + +Override on a per-project basis by providing a project-specific +gp_resolve_item_override function. + +:: + + GP_RESOLVED_FILE_TYPE(<original_file> <file> <exepath> <dirs> <type_var> + [<rpaths>]) + +Return the type of <file> with respect to <original_file>. String +describing type of prerequisite is returned in variable named +<type_var>. + +Use <exepath> and <dirs> if necessary to resolve non-absolute <file> +values -- but only for non-embedded items. + +Possible types are: + +:: + + system + local + embedded + other + +Override on a per-project basis by providing a project-specific +gp_resolved_file_type_override function. + +:: + + GP_FILE_TYPE(<original_file> <file> <type_var>) + +Return the type of <file> with respect to <original_file>. String +describing type of prerequisite is returned in variable named +<type_var>. + +Possible types are: + +:: + + system + local + embedded + other +#]=======================================================================] + +cmake_policy(PUSH) +cmake_policy(SET CMP0057 NEW) # if IN_LIST + +function(gp_append_unique list_var value) + if(NOT value IN_LIST ${list_var}) + set(${list_var} ${${list_var}} "${value}" PARENT_SCOPE) + endif() +endfunction() + + +function(is_file_executable file result_var) + # + # A file is not executable until proven otherwise: + # + set(${result_var} 0 PARENT_SCOPE) + + get_filename_component(file_full "${file}" ABSOLUTE) + string(TOLOWER "${file_full}" file_full_lower) + + # If file name ends in .exe on Windows, *assume* executable: + # + if(WIN32 AND NOT UNIX) + if("${file_full_lower}" MATCHES "\\.exe$") + set(${result_var} 1 PARENT_SCOPE) + return() + endif() + + # A clause could be added here that uses output or return value of dumpbin + # to determine ${result_var}. In 99%+? practical cases, the exe name + # match will be sufficient... + # + endif() + + # Use the information returned from the Unix shell command "file" to + # determine if ${file_full} should be considered an executable file... + # + # If the file command's output contains "executable" and does *not* contain + # "text" then it is likely an executable suitable for prerequisite analysis + # via the get_prerequisites macro. + # + if(UNIX) + if(NOT file_cmd) + find_program(file_cmd "file") + mark_as_advanced(file_cmd) + endif() + + if(file_cmd) + execute_process(COMMAND "${file_cmd}" "${file_full}" + RESULT_VARIABLE file_rv + OUTPUT_VARIABLE file_ov + ERROR_VARIABLE file_ev + OUTPUT_STRIP_TRAILING_WHITESPACE + ) + if(NOT file_rv STREQUAL "0") + message(FATAL_ERROR "${file_cmd} failed: ${file_rv}\n${file_ev}") + endif() + + # Replace the name of the file in the output with a placeholder token + # (the string " _file_full_ ") so that just in case the path name of + # the file contains the word "text" or "executable" we are not fooled + # into thinking "the wrong thing" because the file name matches the + # other 'file' command output we are looking for... + # + string(REPLACE "${file_full}" " _file_full_ " file_ov "${file_ov}") + string(TOLOWER "${file_ov}" file_ov) + + #message(STATUS "file_ov='${file_ov}'") + if("${file_ov}" MATCHES "executable") + #message(STATUS "executable!") + if("${file_ov}" MATCHES "text") + #message(STATUS "but text, so *not* a binary executable!") + else() + set(${result_var} 1 PARENT_SCOPE) + return() + endif() + endif() + + # Also detect position independent executables on Linux, + # where "file" gives "shared object ... (uses shared libraries)" + if("${file_ov}" MATCHES "shared object.*\(uses shared libs\)") + set(${result_var} 1 PARENT_SCOPE) + return() + endif() + + # "file" version 5.22 does not print "(used shared libraries)" + # but uses "interpreter" + if("${file_ov}" MATCHES "shared object.*interpreter") + set(${result_var} 1 PARENT_SCOPE) + return() + endif() + + else() + message(STATUS "warning: No 'file' command, skipping execute_process...") + endif() + endif() +endfunction() + + +function(gp_item_default_embedded_path item default_embedded_path_var) + + # On Windows and Linux, "embed" prerequisites in the same directory + # as the executable by default: + # + set(path "@executable_path") + + # On the Mac, relative to the executable depending on the type + # of the thing we are embedding: + # + if(APPLE) + # + # The assumption here is that all executables in the bundle will be + # in same-level-directories inside the bundle. The parent directory + # of an executable inside the bundle should be MacOS or a sibling of + # MacOS and all embedded paths returned from here will begin with + # "@executable_path/../" and will work from all executables in all + # such same-level-directories inside the bundle. + # + + # By default, embed things right next to the main bundle executable: + # + set(path "@executable_path/../../Contents/MacOS") + + # Embed frameworks and .dylibs in the embedded "Frameworks" directory + # (sibling of MacOS): + # + if(item MATCHES "[^/]+\\.framework/" OR item MATCHES "\\.dylib$") + set(path "@executable_path/../Frameworks") + endif() + endif() + + # Provide a hook so that projects can override the default embedded location + # of any given library by whatever logic they choose: + # + if(COMMAND gp_item_default_embedded_path_override) + gp_item_default_embedded_path_override("${item}" path) + endif() + + set(${default_embedded_path_var} "${path}" PARENT_SCOPE) +endfunction() + + +function(gp_resolve_item context item exepath dirs resolved_item_var) + set(resolved 0) + set(resolved_item "${item}") + if(ARGC GREATER 5) + set(rpaths "${ARGV5}") + else() + set(rpaths "") + endif() + + # Is it already resolved? + # + if(IS_ABSOLUTE "${resolved_item}" AND EXISTS "${resolved_item}") + set(resolved 1) + endif() + + if(NOT resolved) + if(item MATCHES "^@executable_path") + # + # @executable_path references are assumed relative to exepath + # + string(REPLACE "@executable_path" "${exepath}" ri "${item}") + get_filename_component(ri "${ri}" ABSOLUTE) + + if(EXISTS "${ri}") + #message(STATUS "info: embedded item exists (${ri})") + set(resolved 1) + set(resolved_item "${ri}") + else() + message(STATUS "warning: embedded item does not exist '${ri}'") + endif() + endif() + endif() + + if(NOT resolved) + if(item MATCHES "^@loader_path") + # + # @loader_path references are assumed relative to the + # PATH of the given "context" (presumably another library) + # + get_filename_component(contextpath "${context}" PATH) + string(REPLACE "@loader_path" "${contextpath}" ri "${item}") + get_filename_component(ri "${ri}" ABSOLUTE) + + if(EXISTS "${ri}") + #message(STATUS "info: embedded item exists (${ri})") + set(resolved 1) + set(resolved_item "${ri}") + else() + message(STATUS "warning: embedded item does not exist '${ri}'") + endif() + endif() + endif() + + if(NOT resolved) + if(item MATCHES "^@rpath") + # + # @rpath references are relative to the paths built into the binaries with -rpath + # We handle this case like we do for other Unixes + # + string(REPLACE "@rpath/" "" norpath_item "${item}") + + set(ri "ri-NOTFOUND") + find_file(ri "${norpath_item}" ${exepath} ${dirs} ${rpaths} NO_DEFAULT_PATH) + if(ri) + #message(STATUS "info: 'find_file' in exepath/dirs/rpaths (${ri})") + set(resolved 1) + set(resolved_item "${ri}") + set(ri "ri-NOTFOUND") + endif() + + endif() + endif() + + if(NOT resolved) + set(ri "ri-NOTFOUND") + find_file(ri "${item}" ${exepath} ${dirs} NO_DEFAULT_PATH) + find_file(ri "${item}" ${exepath} ${dirs} /usr/lib) + + get_filename_component(basename_item "${item}" NAME) + find_file(ri "${basename_item}" PATHS ${exepath} ${dirs} NO_DEFAULT_PATH) + find_file(ri "${basename_item}" PATHS /usr/lib) + + if(ri) + #message(STATUS "info: 'find_file' in exepath/dirs (${ri})") + set(resolved 1) + set(resolved_item "${ri}") + set(ri "ri-NOTFOUND") + endif() + endif() + + if(NOT resolved) + if(item MATCHES "[^/]+\\.framework/") + set(fw "fw-NOTFOUND") + find_file(fw "${item}" + "~/Library/Frameworks" + "/Library/Frameworks" + "/System/Library/Frameworks" + ) + if(fw) + #message(STATUS "info: 'find_file' found framework (${fw})") + set(resolved 1) + set(resolved_item "${fw}") + set(fw "fw-NOTFOUND") + endif() + endif() + endif() + + # Using find_program on Windows will find dll files that are in the PATH. + # (Converting simple file names into full path names if found.) + # + if(WIN32 AND NOT UNIX) + if(NOT resolved) + set(ri "ri-NOTFOUND") + find_program(ri "${item}" PATHS ${exepath} ${dirs} NO_DEFAULT_PATH) + find_program(ri "${item}" PATHS ${exepath} ${dirs}) + if(ri) + #message(STATUS "info: 'find_program' in exepath/dirs (${ri})") + set(resolved 1) + set(resolved_item "${ri}") + set(ri "ri-NOTFOUND") + endif() + endif() + endif() + + # Provide a hook so that projects can override item resolution + # by whatever logic they choose: + # + if(COMMAND gp_resolve_item_override) + gp_resolve_item_override("${context}" "${item}" "${exepath}" "${dirs}" resolved_item resolved) + endif() + + if(NOT resolved) + message(STATUS " +warning: cannot resolve item '${item}' + + possible problems: + need more directories? + need to use InstallRequiredSystemLibraries? + run in install tree instead of build tree? +") +# message(STATUS " +#****************************************************************************** +#warning: cannot resolve item '${item}' +# +# possible problems: +# need more directories? +# need to use InstallRequiredSystemLibraries? +# run in install tree instead of build tree? +# +# context='${context}' +# item='${item}' +# exepath='${exepath}' +# dirs='${dirs}' +# resolved_item_var='${resolved_item_var}' +#****************************************************************************** +#") + endif() + + set(${resolved_item_var} "${resolved_item}" PARENT_SCOPE) +endfunction() + + +function(gp_resolved_file_type original_file file exepath dirs type_var) + if(ARGC GREATER 5) + set(rpaths "${ARGV5}") + else() + set(rpaths "") + endif() + #message(STATUS "**") + + if(NOT IS_ABSOLUTE "${original_file}") + message(STATUS "warning: gp_resolved_file_type expects absolute full path for first arg original_file") + endif() + if(IS_ABSOLUTE "${original_file}") + get_filename_component(original_file "${original_file}" ABSOLUTE) # canonicalize path + endif() + + set(is_embedded 0) + set(is_local 0) + set(is_system 0) + + set(resolved_file "${file}") + + if("${file}" MATCHES "^@(executable|loader)_path") + set(is_embedded 1) + endif() + + if(NOT is_embedded) + if(NOT IS_ABSOLUTE "${file}") + gp_resolve_item("${original_file}" "${file}" "${exepath}" "${dirs}" resolved_file "${rpaths}") + endif() + if(IS_ABSOLUTE "${resolved_file}") + get_filename_component(resolved_file "${resolved_file}" ABSOLUTE) # canonicalize path + endif() + + string(TOLOWER "${original_file}" original_lower) + string(TOLOWER "${resolved_file}" lower) + + if(UNIX) + if(resolved_file MATCHES "^(/lib/|/lib32/|/libx32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/libx32/|/usr/lib64/|/usr/X11R6/|/usr/bin/)") + set(is_system 1) + endif() + endif() + + if(APPLE) + if(resolved_file MATCHES "^(/System/Library/|/usr/lib/)") + set(is_system 1) + endif() + endif() + + if(WIN32) + string(TOLOWER "$ENV{SystemRoot}" sysroot) + file(TO_CMAKE_PATH "${sysroot}" sysroot) + + string(TOLOWER "$ENV{windir}" windir) + file(TO_CMAKE_PATH "${windir}" windir) + + if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*(msvc|api-ms-win-|vcruntime)[^/]+dll)") + set(is_system 1) + endif() + + if(UNIX) + # if cygwin, we can get the properly formed windows paths from cygpath + find_program(CYGPATH_EXECUTABLE cygpath) + + if(CYGPATH_EXECUTABLE) + execute_process(COMMAND ${CYGPATH_EXECUTABLE} -W + RESULT_VARIABLE env_rv + OUTPUT_VARIABLE env_windir + ERROR_VARIABLE env_ev + OUTPUT_STRIP_TRAILING_WHITESPACE) + if(NOT env_rv STREQUAL "0") + message(FATAL_ERROR "${CYGPATH_EXECUTABLE} -W failed: ${env_rv}\n${env_ev}") + endif() + execute_process(COMMAND ${CYGPATH_EXECUTABLE} -S + RESULT_VARIABLE env_rv + OUTPUT_VARIABLE env_sysdir + ERROR_VARIABLE env_ev + OUTPUT_STRIP_TRAILING_WHITESPACE) + if(NOT env_rv STREQUAL "0") + message(FATAL_ERROR "${CYGPATH_EXECUTABLE} -S failed: ${env_rv}\n${env_ev}") + endif() + string(TOLOWER "${env_windir}" windir) + string(TOLOWER "${env_sysdir}" sysroot) + + if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*(msvc|api-ms-win-|vcruntime)[^/]+dll)") + set(is_system 1) + endif() + endif() + endif() + endif() + + if(NOT is_system) + get_filename_component(original_path "${original_lower}" PATH) + get_filename_component(path "${lower}" PATH) + if(original_path STREQUAL path) + set(is_local 1) + else() + string(LENGTH "${original_path}/" original_length) + string(LENGTH "${lower}" path_length) + if(${path_length} GREATER ${original_length}) + string(SUBSTRING "${lower}" 0 ${original_length} path) + if("${original_path}/" STREQUAL path) + set(is_embedded 1) + endif() + endif() + endif() + endif() + endif() + + # Return type string based on computed booleans: + # + set(type "other") + + if(is_system) + set(type "system") + elseif(is_embedded) + set(type "embedded") + elseif(is_local) + set(type "local") + endif() + + #message(STATUS "gp_resolved_file_type: '${file}' '${resolved_file}'") + #message(STATUS " type: '${type}'") + + if(NOT is_embedded) + if(NOT IS_ABSOLUTE "${resolved_file}") + if(lower MATCHES "^(msvc|api-ms-win-|vcruntime)[^/]+dll" AND is_system) + message(STATUS "info: non-absolute msvc file '${file}' returning type '${type}'") + else() + message(STATUS "warning: gp_resolved_file_type non-absolute file '${file}' returning type '${type}' -- possibly incorrect") + endif() + endif() + endif() + + # Provide a hook so that projects can override the decision on whether a + # library belongs to the system or not by whatever logic they choose: + # + if(COMMAND gp_resolved_file_type_override) + gp_resolved_file_type_override("${resolved_file}" type) + endif() + + set(${type_var} "${type}" PARENT_SCOPE) + + #message(STATUS "**") +endfunction() + + +function(gp_file_type original_file file type_var) + if(NOT IS_ABSOLUTE "${original_file}") + message(STATUS "warning: gp_file_type expects absolute full path for first arg original_file") + endif() + + get_filename_component(exepath "${original_file}" PATH) + + set(type "") + gp_resolved_file_type("${original_file}" "${file}" "${exepath}" "" type) + + set(${type_var} "${type}" PARENT_SCOPE) +endfunction() + + +function(get_prerequisites target prerequisites_var exclude_system recurse exepath dirs) + set(verbose 0) + set(eol_char "E") + if(ARGC GREATER 6) + set(rpaths "${ARGV6}") + else() + set(rpaths "") + endif() + + if(GET_PREREQUISITES_VERBOSE) + set(verbose 1) + endif() + + if(NOT IS_ABSOLUTE "${target}") + message("warning: target '${target}' is not absolute...") + endif() + + if(NOT EXISTS "${target}") + message("warning: target '${target}' does not exist...") + return() + endif() + + # Check for a script by extension (.bat,.sh,...) or if the file starts with "#!" (shebang) + file(READ ${target} file_contents LIMIT 5) + if(target MATCHES "\\.(bat|c?sh|bash|ksh|cmd)$" OR file_contents MATCHES "^#!") + message(STATUS "GetPrequisites(${target}) : ignoring script file") + # Clear var + set(${prerequisites_var} "" PARENT_SCOPE) + return() + endif() + + set(gp_cmd_paths ${gp_cmd_paths} + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\14.0;InstallDir]/../../VC/bin" + "$ENV{VS140COMNTOOLS}/../../VC/bin" + "C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\12.0;InstallDir]/../../VC/bin" + "$ENV{VS120COMNTOOLS}/../../VC/bin" + "C:/Program Files (x86)/Microsoft Visual Studio 12.0/VC/bin" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;InstallDir]/../../VC/bin" + "$ENV{VS110COMNTOOLS}/../../VC/bin" + "C:/Program Files (x86)/Microsoft Visual Studio 11.0/VC/bin" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\10.0;InstallDir]/../../VC/bin" + "$ENV{VS100COMNTOOLS}/../../VC/bin" + "C:/Program Files (x86)/Microsoft Visual Studio 10.0/VC/bin" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\9.0;InstallDir]/../../VC/bin" + "$ENV{VS90COMNTOOLS}/../../VC/bin" + "C:/Program Files/Microsoft Visual Studio 9.0/VC/bin" + "C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\8.0;InstallDir]/../../VC/bin" + "$ENV{VS80COMNTOOLS}/../../VC/bin" + "C:/Program Files/Microsoft Visual Studio 8/VC/BIN" + "C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\7.1;InstallDir]/../../VC7/bin" + "$ENV{VS71COMNTOOLS}/../../VC7/bin" + "C:/Program Files/Microsoft Visual Studio .NET 2003/VC7/BIN" + "C:/Program Files (x86)/Microsoft Visual Studio .NET 2003/VC7/BIN" + ) + + # <setup-gp_tool-vars> + # + # Try to choose the right tool by default. Caller can set gp_tool prior to + # calling this function to force using a different tool. + # + if(NOT gp_tool) + set(gp_tool "ldd") + + if(APPLE) + set(gp_tool "otool") + endif() + + if(WIN32 AND NOT UNIX) # This is how to check for cygwin, har! + find_program(gp_dumpbin "dumpbin" PATHS ${gp_cmd_paths}) + if(gp_dumpbin) + set(gp_tool "dumpbin") + elseif(CMAKE_OBJDUMP) # Try harder. Maybe we're on MinGW + set(gp_tool "${CMAKE_OBJDUMP}") + else() + set(gp_tool "objdump") + endif() + endif() + endif() + + find_program(gp_cmd ${gp_tool} PATHS ${gp_cmd_paths}) + + if(NOT gp_cmd) + message(STATUS "warning: could not find '${gp_tool}' - cannot analyze prerequisites...") + return() + endif() + + set(gp_cmd_maybe_filter) # optional command to pre-filter gp_tool results + + if(gp_tool MATCHES "ldd$") + set(gp_cmd_args "") + set(gp_regex "^[\t ]*[^\t ]+ =>[\t ]+([^\t\(]+)( \(.+\))?${eol_char}$") + set(gp_regex_error "not found${eol_char}$") + set(gp_regex_fallback "^[\t ]*([^\t ]+) => ([^\t ]+).*${eol_char}$") + set(gp_regex_cmp_count 1) + elseif(gp_tool MATCHES "otool$") + set(gp_cmd_args "-L") + set(gp_regex "^\t([^\t]+) \\(compatibility version ([0-9]+.[0-9]+.[0-9]+), current version ([0-9]+.[0-9]+.[0-9]+)\\)${eol_char}$") + set(gp_regex_error "") + set(gp_regex_fallback "") + set(gp_regex_cmp_count 3) + elseif(gp_tool MATCHES "dumpbin$") + set(gp_cmd_args "/dependents") + set(gp_regex "^ ([^ ].*[Dd][Ll][Ll])${eol_char}$") + set(gp_regex_error "") + set(gp_regex_fallback "") + set(gp_regex_cmp_count 1) + elseif(gp_tool MATCHES "objdump$") + set(gp_cmd_args "-p") + set(gp_regex "^\t*DLL Name: (.*\\.[Dd][Ll][Ll])${eol_char}$") + set(gp_regex_error "") + set(gp_regex_fallback "") + set(gp_regex_cmp_count 1) + # objdump generates copious output so we create a grep filter to pre-filter results + if(WIN32) + find_program(gp_grep_cmd findstr) + else() + find_program(gp_grep_cmd grep) + endif() + if(gp_grep_cmd) + set(gp_cmd_maybe_filter COMMAND ${gp_grep_cmd} "-a" "^[[:blank:]]*DLL Name: ") + endif() + else() + message(STATUS "warning: gp_tool='${gp_tool}' is an unknown tool...") + message(STATUS "CMake function get_prerequisites needs more code to handle '${gp_tool}'") + message(STATUS "Valid gp_tool values are dumpbin, ldd, objdump and otool.") + return() + endif() + + + if(gp_tool MATCHES "dumpbin$") + # When running dumpbin, it also needs the "Common7/IDE" directory in the + # PATH. It will already be in the PATH if being run from a Visual Studio + # command prompt. Add it to the PATH here in case we are running from a + # different command prompt. + # + get_filename_component(gp_cmd_dir "${gp_cmd}" PATH) + get_filename_component(gp_cmd_dlls_dir "${gp_cmd_dir}/../../Common7/IDE" ABSOLUTE) + # Use cmake paths as a user may have a PATH element ending with a backslash. + # This will escape the list delimiter and create havoc! + if(EXISTS "${gp_cmd_dlls_dir}") + # only add to the path if it is not already in the path + set(gp_found_cmd_dlls_dir 0) + file(TO_CMAKE_PATH "$ENV{PATH}" env_path) + foreach(gp_env_path_element ${env_path}) + if(gp_env_path_element STREQUAL gp_cmd_dlls_dir) + set(gp_found_cmd_dlls_dir 1) + endif() + endforeach() + + if(NOT gp_found_cmd_dlls_dir) + file(TO_NATIVE_PATH "${gp_cmd_dlls_dir}" gp_cmd_dlls_dir) + set(ENV{PATH} "$ENV{PATH};${gp_cmd_dlls_dir}") + endif() + endif() + endif() + # + # </setup-gp_tool-vars> + + if(gp_tool MATCHES "ldd$") + set(old_ld_env "$ENV{LD_LIBRARY_PATH}") + set(new_ld_env "${exepath}") + foreach(dir ${dirs}) + string(APPEND new_ld_env ":${dir}") + endforeach() + set(ENV{LD_LIBRARY_PATH} "${new_ld_env}:$ENV{LD_LIBRARY_PATH}") + endif() + + + # Track new prerequisites at each new level of recursion. Start with an + # empty list at each level: + # + set(unseen_prereqs) + + # Run gp_cmd on the target: + # + execute_process( + COMMAND ${gp_cmd} ${gp_cmd_args} ${target} + ${gp_cmd_maybe_filter} + RESULT_VARIABLE gp_rv + OUTPUT_VARIABLE gp_cmd_ov + ERROR_VARIABLE gp_ev + ) + + if(gp_tool MATCHES "dumpbin$") + # Exclude delay load dependencies under windows (they are listed in dumpbin output after the message below) + string(FIND "${gp_cmd_ov}" "Image has the following delay load dependencies" gp_delayload_pos) + if (${gp_delayload_pos} GREATER -1) + string(SUBSTRING "${gp_cmd_ov}" 0 ${gp_delayload_pos} gp_cmd_ov_no_delayload_deps) + string(SUBSTRING "${gp_cmd_ov}" ${gp_delayload_pos} -1 gp_cmd_ov_delayload_deps) + if (verbose) + message(STATUS "GetPrequisites(${target}) : ignoring the following delay load dependencies :\n ${gp_cmd_ov_delayload_deps}") + endif() + set(gp_cmd_ov ${gp_cmd_ov_no_delayload_deps}) + endif() + endif() + + if(NOT gp_rv STREQUAL "0") + if(gp_tool MATCHES "dumpbin$") + # dumpbin error messages seem to go to stdout + message(FATAL_ERROR "${gp_cmd} failed: ${gp_rv}\n${gp_ev}\n${gp_cmd_ov}") + else() + message(FATAL_ERROR "${gp_cmd} failed: ${gp_rv}\n${gp_ev}") + endif() + endif() + + if(gp_tool MATCHES "ldd$") + set(ENV{LD_LIBRARY_PATH} "${old_ld_env}") + endif() + + if(verbose) + message(STATUS "<RawOutput cmd='${gp_cmd} ${gp_cmd_args} ${target}'>") + message(STATUS "gp_cmd_ov='${gp_cmd_ov}'") + message(STATUS "</RawOutput>") + endif() + + get_filename_component(target_dir "${target}" PATH) + + # Convert to a list of lines: + # + string(REPLACE ";" "\\;" candidates "${gp_cmd_ov}") + string(REPLACE "\n" "${eol_char};" candidates "${candidates}") + + # check for install id and remove it from list, since otool -L can include a + # reference to itself + set(gp_install_id) + if(gp_tool MATCHES "otool$") + execute_process( + COMMAND ${gp_cmd} -D ${target} + RESULT_VARIABLE otool_rv + OUTPUT_VARIABLE gp_install_id_ov + ERROR_VARIABLE otool_ev + ) + if(NOT otool_rv STREQUAL "0") + message(FATAL_ERROR "otool -D failed: ${otool_rv}\n${otool_ev}") + endif() + # second line is install name + string(REGEX REPLACE ".*:\n" "" gp_install_id "${gp_install_id_ov}") + if(gp_install_id) + # trim + string(REGEX MATCH "[^\n ].*[^\n ]" gp_install_id "${gp_install_id}") + #message("INSTALL ID is \"${gp_install_id}\"") + endif() + endif() + + # Analyze each line for file names that match the regular expression: + # + foreach(candidate ${candidates}) + if("${candidate}" MATCHES "${gp_regex}") + + # Extract information from each candidate: + if(gp_regex_error AND "${candidate}" MATCHES "${gp_regex_error}") + string(REGEX REPLACE "${gp_regex_fallback}" "\\1" raw_item "${candidate}") + else() + string(REGEX REPLACE "${gp_regex}" "\\1" raw_item "${candidate}") + endif() + + if(gp_regex_cmp_count GREATER 1) + string(REGEX REPLACE "${gp_regex}" "\\2" raw_compat_version "${candidate}") + string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" compat_major_version "${raw_compat_version}") + string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" compat_minor_version "${raw_compat_version}") + string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" compat_patch_version "${raw_compat_version}") + endif() + + if(gp_regex_cmp_count GREATER 2) + string(REGEX REPLACE "${gp_regex}" "\\3" raw_current_version "${candidate}") + string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" current_major_version "${raw_current_version}") + string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" current_minor_version "${raw_current_version}") + string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" current_patch_version "${raw_current_version}") + endif() + + # Use the raw_item as the list entries returned by this function. Use the + # gp_resolve_item function to resolve it to an actual full path file if + # necessary. + # + set(item "${raw_item}") + + # Add each item unless it is excluded: + # + set(add_item 1) + + if(item STREQUAL gp_install_id) + set(add_item 0) + endif() + + if(add_item AND ${exclude_system}) + set(type "") + gp_resolved_file_type("${target}" "${item}" "${exepath}" "${dirs}" type "${rpaths}") + + if(type STREQUAL "system") + set(add_item 0) + endif() + endif() + + if(add_item) + list(LENGTH ${prerequisites_var} list_length_before_append) + gp_append_unique(${prerequisites_var} "${item}") + list(LENGTH ${prerequisites_var} list_length_after_append) + + if(${recurse}) + # If item was really added, this is the first time we have seen it. + # Add it to unseen_prereqs so that we can recursively add *its* + # prerequisites... + # + # But first: resolve its name to an absolute full path name such + # that the analysis tools can simply accept it as input. + # + if(NOT list_length_before_append EQUAL list_length_after_append) + gp_resolve_item("${target}" "${item}" "${exepath}" "${dirs}" resolved_item "${rpaths}") + if(EXISTS "${resolved_item}") + # Recurse only if we could resolve the item. + # Otherwise the prerequisites_var list will be cleared + set(unseen_prereqs ${unseen_prereqs} "${resolved_item}") + endif() + endif() + endif() + endif() + else() + if(verbose) + message(STATUS "ignoring non-matching line: '${candidate}'") + endif() + endif() + endforeach() + + list(LENGTH ${prerequisites_var} prerequisites_var_length) + if(prerequisites_var_length GREATER 0) + list(SORT ${prerequisites_var}) + endif() + if(${recurse}) + set(more_inputs ${unseen_prereqs}) + foreach(input ${more_inputs}) + get_prerequisites("${input}" ${prerequisites_var} ${exclude_system} ${recurse} "${exepath}" "${dirs}" "${rpaths}") + endforeach() + endif() + + set(${prerequisites_var} ${${prerequisites_var}} PARENT_SCOPE) +endfunction() + + +function(list_prerequisites target) + if(ARGC GREATER 1 AND NOT "${ARGV1}" STREQUAL "") + set(all "${ARGV1}") + else() + set(all 1) + endif() + + if(ARGC GREATER 2 AND NOT "${ARGV2}" STREQUAL "") + set(exclude_system "${ARGV2}") + else() + set(exclude_system 0) + endif() + + if(ARGC GREATER 3 AND NOT "${ARGV3}" STREQUAL "") + set(verbose "${ARGV3}") + else() + set(verbose 0) + endif() + + set(count 0) + set(count_str "") + set(print_count "${verbose}") + set(print_prerequisite_type "${verbose}") + set(print_target "${verbose}") + set(type_str "") + + get_filename_component(exepath "${target}" PATH) + + set(prereqs "") + get_prerequisites("${target}" prereqs ${exclude_system} ${all} "${exepath}" "") + + if(print_target) + message(STATUS "File '${target}' depends on:") + endif() + + foreach(d ${prereqs}) + math(EXPR count "${count} + 1") + + if(print_count) + set(count_str "${count}. ") + endif() + + if(print_prerequisite_type) + gp_file_type("${target}" "${d}" type) + set(type_str " (${type})") + endif() + + message(STATUS "${count_str}${d}${type_str}") + endforeach() +endfunction() + + +function(list_prerequisites_by_glob glob_arg glob_exp) + message(STATUS "=============================================================================") + message(STATUS "List prerequisites of executables matching ${glob_arg} '${glob_exp}'") + message(STATUS "") + file(${glob_arg} file_list ${glob_exp}) + foreach(f ${file_list}) + is_file_executable("${f}" is_f_executable) + if(is_f_executable) + message(STATUS "=============================================================================") + list_prerequisites("${f}" ${ARGN}) + message(STATUS "") + endif() + endforeach() +endfunction() + +cmake_policy(POP) |