Mirrors_Framework/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2026-02-06 02:02:09 +08:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

cmake: use readelf to extract soname from shared elf library

Browse Source
This commit is contained in:
Anonymous Maarten
2026-01-19 20:28:10 +01:00
committed by Anonymous Maarten
parent 8a62d6d406
commit c34b67250c
1 changed files with 42 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
cmake/macros.cmake
View File

@@ -208,9 +208,14 @@ function(target_get_dynamic_library DEST TARGET)
endif()
endforeach()
else()
if(UNIX AND NOT APPLE)
find_program(READELF_BIN NAMES readelf)
endif()
# 1. find the target library a file might be symbolic linking to
# 2. find all other files in the same folder that symbolic link to it
# 3. sort all these files, and select the 1st item on Linux, and last on macOS
# 2. if readelf is available, parse the output of `readelf -d` and output the "(SONAME)" line
# 3. Else:
# 1. find all other files in the same folder that symbolic link to it
# 2. sort all these files, and select the 1st item on Linux, and last on macOS
set(location_properties IMPORTED_LOCATION)
if(CMAKE_BUILD_TYPE)
list(APPEND location_properties IMPORTED_LOCATION_${CMAKE_BUILD_TYPE})
@@ -228,33 +233,44 @@ function(target_get_dynamic_library DEST TARGET)
get_target_property(library_path "${TARGET}" ${location_property})
message(DEBUG "get_target_property(${TARGET} ${location_property}) -> ${library_path}")
if(EXISTS "${library_path}")
get_filename_component(library_path "${library_path}" ABSOLUTE)
while (IS_SYMLINK "${library_path}")
read_absolute_symlink(library_path "${library_path}")
endwhile()
message(DEBUG "${TARGET} -> ${library_path}")
get_filename_component(libdir "${library_path}" DIRECTORY)
file(GLOB subfiles "${libdir}/*")
set(similar_files "${library_path}")
foreach(subfile ${subfiles})
if(IS_SYMLINK "${subfile}")
read_absolute_symlink(subfile_target "${subfile}")
while(IS_SYMLINK "${subfile_target}")
read_absolute_symlink(subfile_target "${subfile_target}")
endwhile()
get_filename_component(subfile_target "${subfile_target}" ABSOLUTE)
if(subfile_target STREQUAL library_path AND subfile MATCHES "${valid_shared_library_regex}")
list(APPEND similar_files "${subfile}")
if(READELF_BIN)
execute_process(COMMAND "${READELF_BIN}" -d "${library_path}" RESULTS_VARIABLE readelf_result OUTPUT_VARIABLE readelf_output)
if(readelf_output)
string(REGEX MATCH "\\(SONAME\\).*\\[([0-9A-Za-z_.-]+)\\]" soname "${readelf_output}")
if(soname)
set(result "${CMAKE_MATCH_1}")
endif()
endif()
endforeach()
list(SORT similar_files)
message(DEBUG "files that are similar to \"${library_path}\"=${similar_files}")
if(APPLE)
list(REVERSE similar_files)
endif()
list(GET similar_files 0 item)
get_filename_component(result "${item}" NAME)
if(NOT result)
get_filename_component(library_path "${library_path}" ABSOLUTE)
while (IS_SYMLINK "${library_path}")
read_absolute_symlink(library_path "${library_path}")
endwhile()
message(DEBUG "${TARGET} -> ${library_path}")
get_filename_component(libdir "${library_path}" DIRECTORY)
file(GLOB subfiles "${libdir}/*")
set(similar_files "${library_path}")
foreach(subfile ${subfiles})
if(IS_SYMLINK "${subfile}")
read_absolute_symlink(subfile_target "${subfile}")
while(IS_SYMLINK "${subfile_target}")
read_absolute_symlink(subfile_target "${subfile_target}")
endwhile()
get_filename_component(subfile_target "${subfile_target}" ABSOLUTE)
if(subfile_target STREQUAL library_path AND subfile MATCHES "${valid_shared_library_regex}")
list(APPEND similar_files "${subfile}")
endif()
endif()
endforeach()
list(SORT similar_files)
message(DEBUG "files that are similar to \"${library_path}\"=${similar_files}")
if(APPLE)
list(REVERSE similar_files)
endif()
list(GET similar_files 0 item)
get_filename_component(result "${item}" NAME)
endif()
endif()
endif()
endforeach()