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https://github.com/RPCS3/llvm-mirror.git
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0ac9f05175
using it to detect whether or not a terminal supports colors. This replaces a particularly egregious hack that merely compared the TERM environment variable to "dumb". That doesn't really translate to a reasonable experience for users that have actually ensured their terminal's capabilities are accurately reflected. This makes testing a terminal for color support somewhat more expensive, but it is called very rarely anyways. The important fast path when the output is being piped somewhere is already in place. The global lock may seem excessive, but the spec for calling into curses is *terrible*. The whole library is terrible, and I spent quite a bit of time looking for a better way of doing this before convincing myself that this was the fundamentally correct way to behave. The damage of the curses library is very narrowly confined, and we continue to use raw escape codes for actually manipulating the colors which is a much sane system than directly using curses here (IMO). If this causes trouble for folks, please let me know. I've tested it on Linux and will watch the bots carefully. I've also worked to account for the variances of curses interfaces that I could finde documentation for, but that may not have been sufficient. llvm-svn: 187874
194 lines
6.7 KiB
CMake
194 lines
6.7 KiB
CMake
function(get_system_libs return_var)
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# Returns in `return_var' a list of system libraries used by LLVM.
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if( NOT MSVC )
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if( MINGW )
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set(system_libs ${system_libs} imagehlp psapi)
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elseif( CMAKE_HOST_UNIX )
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if( HAVE_LIBRT )
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set(system_libs ${system_libs} rt)
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endif()
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if( HAVE_LIBDL )
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set(system_libs ${system_libs} ${CMAKE_DL_LIBS})
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endif()
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if(LLVM_ENABLE_CURSES)
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if(HAVE_NCURSESW)
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set(system_libs ${system_libs} ncursesw)
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elseif(HAVE_NCURSES)
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set(system_libs ${system_libs} ncurses)
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elseif(HAVE_CURSES)
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set(system_libs ${system_libs} curses)
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endif()
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endif()
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if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD )
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set(system_libs ${system_libs} pthread)
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endif()
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if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ )
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set(system_libs ${system_libs} z)
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endif()
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endif( MINGW )
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endif( NOT MSVC )
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set(${return_var} ${system_libs} PARENT_SCOPE)
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endfunction(get_system_libs)
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function(link_system_libs target)
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get_system_libs(llvm_system_libs)
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target_link_libraries(${target} ${llvm_system_libs})
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endfunction(link_system_libs)
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function(is_llvm_target_library library return_var)
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# Sets variable `return_var' to ON if `library' corresponds to a
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# LLVM supported target. To OFF if it doesn't.
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set(${return_var} OFF PARENT_SCOPE)
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string(TOUPPER "${library}" capitalized_lib)
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string(TOUPPER "${LLVM_ALL_TARGETS}" targets)
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foreach(t ${targets})
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if( capitalized_lib STREQUAL t OR
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capitalized_lib STREQUAL "LLVM${t}" OR
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capitalized_lib STREQUAL "LLVM${t}CODEGEN" OR
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capitalized_lib STREQUAL "LLVM${t}ASMPARSER" OR
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capitalized_lib STREQUAL "LLVM${t}ASMPRINTER" OR
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capitalized_lib STREQUAL "LLVM${t}DISASSEMBLER" OR
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capitalized_lib STREQUAL "LLVM${t}INFO" )
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set(${return_var} ON PARENT_SCOPE)
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break()
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endif()
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endforeach()
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endfunction(is_llvm_target_library)
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macro(llvm_config executable)
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explicit_llvm_config(${executable} ${ARGN})
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endmacro(llvm_config)
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function(explicit_llvm_config executable)
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set( link_components ${ARGN} )
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explicit_map_components_to_libraries(LIBRARIES ${link_components})
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target_link_libraries(${executable} ${LIBRARIES})
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endfunction(explicit_llvm_config)
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# This is a variant intended for the final user:
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function(llvm_map_components_to_libraries OUT_VAR)
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explicit_map_components_to_libraries(result ${ARGN})
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get_system_libs(sys_result)
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set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE )
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endfunction(llvm_map_components_to_libraries)
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function(explicit_map_components_to_libraries out_libs)
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set( link_components ${ARGN} )
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get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS)
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string(TOUPPER "${llvm_libs}" capitalized_libs)
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# Expand some keywords:
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list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend)
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list(FIND link_components "engine" engine_required)
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if( NOT engine_required EQUAL -1 )
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list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit)
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if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 )
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list(APPEND link_components "jit")
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list(APPEND link_components "native")
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else()
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list(APPEND link_components "interpreter")
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endif()
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endif()
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list(FIND link_components "native" native_required)
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if( NOT native_required EQUAL -1 )
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if( NOT have_native_backend EQUAL -1 )
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list(APPEND link_components ${LLVM_NATIVE_ARCH})
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endif()
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endif()
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# Translate symbolic component names to real libraries:
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foreach(c ${link_components})
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# add codegen, asmprinter, asmparser, disassembler
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list(FIND LLVM_TARGETS_TO_BUILD ${c} idx)
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if( NOT idx LESS 0 )
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list(FIND llvm_libs "LLVM${c}CodeGen" idx)
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if( NOT idx LESS 0 )
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list(APPEND expanded_components "LLVM${c}CodeGen")
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else()
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list(FIND llvm_libs "LLVM${c}" idx)
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if( NOT idx LESS 0 )
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list(APPEND expanded_components "LLVM${c}")
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else()
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message(FATAL_ERROR "Target ${c} is not in the set of libraries.")
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endif()
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endif()
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list(FIND llvm_libs "LLVM${c}AsmPrinter" asmidx)
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if( NOT asmidx LESS 0 )
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list(APPEND expanded_components "LLVM${c}AsmPrinter")
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endif()
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list(FIND llvm_libs "LLVM${c}AsmParser" asmidx)
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if( NOT asmidx LESS 0 )
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list(APPEND expanded_components "LLVM${c}AsmParser")
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endif()
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list(FIND llvm_libs "LLVM${c}Info" asmidx)
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if( NOT asmidx LESS 0 )
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list(APPEND expanded_components "LLVM${c}Info")
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endif()
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list(FIND llvm_libs "LLVM${c}Disassembler" asmidx)
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if( NOT asmidx LESS 0 )
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list(APPEND expanded_components "LLVM${c}Disassembler")
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endif()
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elseif( c STREQUAL "native" )
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# already processed
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elseif( c STREQUAL "nativecodegen" )
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list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen")
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elseif( c STREQUAL "backend" )
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# same case as in `native'.
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elseif( c STREQUAL "engine" )
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# already processed
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elseif( c STREQUAL "all" )
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list(APPEND expanded_components ${llvm_libs})
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else( NOT idx LESS 0 )
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# Canonize the component name:
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string(TOUPPER "${c}" capitalized)
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list(FIND capitalized_libs LLVM${capitalized} lib_idx)
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if( lib_idx LESS 0 )
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# The component is unknown. Maybe is an omitted target?
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is_llvm_target_library(${c} iltl_result)
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if( NOT iltl_result )
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message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.")
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endif()
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else( lib_idx LESS 0 )
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list(GET llvm_libs ${lib_idx} canonical_lib)
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list(APPEND expanded_components ${canonical_lib})
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endif( lib_idx LESS 0 )
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endif( NOT idx LESS 0 )
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endforeach(c)
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# Expand dependencies while topologically sorting the list of libraries:
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list(LENGTH expanded_components lst_size)
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set(cursor 0)
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set(processed)
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while( cursor LESS lst_size )
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list(GET expanded_components ${cursor} lib)
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get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib})
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list(APPEND expanded_components ${lib_deps})
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# Remove duplicates at the front:
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list(REVERSE expanded_components)
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list(REMOVE_DUPLICATES expanded_components)
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list(REVERSE expanded_components)
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list(APPEND processed ${lib})
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# Find the maximum index that doesn't have to be re-processed:
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while(NOT "${expanded_components}" MATCHES "^${processed}.*" )
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list(REMOVE_AT processed -1)
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endwhile()
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list(LENGTH processed cursor)
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list(LENGTH expanded_components lst_size)
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endwhile( cursor LESS lst_size )
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# Return just the libraries included in this build:
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set(result)
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foreach(c ${expanded_components})
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list(FIND llvm_libs ${c} lib_idx)
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if( NOT lib_idx LESS 0 )
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set(result ${result} ${c})
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endif()
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endforeach(c)
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set(${out_libs} ${result} PARENT_SCOPE)
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endfunction(explicit_map_components_to_libraries)
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