/
Options.td
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/
Options.td
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include "llvm/Option/OptParser.td"
// Flags that lld/MachO understands but ld64 doesn't. These take
// '--' instead of '-' and use dashes instead of underscores, so
// they don't collide with the ld64 compat options.
def grp_lld : OptionGroup<"kind">, HelpText<"LLD-SPECIFIC">;
def help : Flag<["-", "--"], "help">,
Group<grp_lld>;
def help_hidden : Flag<["--"], "help-hidden">,
HelpText<"Display help for hidden options">,
Group<grp_lld>;
def verbose : Flag<["--"], "verbose">,
Group<grp_lld>;
def error_limit_eq : Joined<["--"], "error-limit=">,
HelpText<"Maximum number of errors to print before exiting (default: 20)">,
Group<grp_lld>;
def color_diagnostics: Flag<["--"], "color-diagnostics">,
HelpText<"Alias for --color-diagnostics=always">,
Group<grp_lld>;
def no_color_diagnostics: Flag<["--"], "no-color-diagnostics">,
HelpText<"Alias for --color-diagnostics=never">,
Group<grp_lld>;
def color_diagnostics_eq: Joined<["--"], "color-diagnostics=">,
HelpText<"Use colors in diagnostics (default: auto)">,
MetaVarName<"[auto,always,never]">,
Group<grp_lld>;
def threads_eq : Joined<["--"], "threads=">,
HelpText<"Number of threads. '1' disables multi-threading. By default all available hardware threads are used">,
Group<grp_lld>;
def thinlto_jobs_eq : Joined<["--"], "thinlto-jobs=">,
HelpText<"Number of ThinLTO jobs. Default to --threads=">,
Group<grp_lld>;
def reproduce: Separate<["--"], "reproduce">,
Group<grp_lld>;
def reproduce_eq: Joined<["--"], "reproduce=">,
Alias<!cast<Separate>(reproduce)>,
HelpText<"Write tar file containing inputs and command to reproduce link">,
Group<grp_lld>;
def version: Flag<["--"], "version">,
HelpText<"Display the version number and exit">,
Group<grp_lld>;
def lto_legacy_pass_manager: Flag<["--"], "lto-legacy-pass-manager">,
HelpText<"Use the legacy pass manager in LLVM">,
Group<grp_lld>;
def no_lto_legacy_pass_manager : Flag<["--"], "no-lto-legacy-pass-manager">,
HelpText<"Use the new pass manager in LLVM">,
Group<grp_lld>;
def time_trace: Flag<["--"], "time-trace">, HelpText<"Record time trace">,
Group<grp_lld>;
def time_trace_granularity_eq: Joined<["--"], "time-trace-granularity=">,
HelpText<"Minimum time granularity (in microseconds) traced by time profiler">,
Group<grp_lld>;
def time_trace_file_eq: Joined<["--"], "time-trace-file=">,
HelpText<"Specify time trace output file">,
Group<grp_lld>;
def deduplicate_literals: Flag<["--"], "deduplicate-literals">,
HelpText<"Enable literal deduplication. This is implied by --icf={safe,all}">,
Group<grp_lld>;
def print_dylib_search: Flag<["--"], "print-dylib-search">,
HelpText<"Print which paths lld searched when trying to find dylibs">,
Group<grp_lld>;
def icf_eq: Joined<["--"], "icf=">,
HelpText<"Set level for identical code folding (default: none)">,
MetaVarName<"[none,safe,all]">,
Group<grp_lld>;
def lto_O: Joined<["--"], "lto-O">,
HelpText<"Set optimization level for LTO (default: 2)">,
MetaVarName<"<opt-level>">,
Group<grp_lld>;
def thinlto_cache_policy: Joined<["--"], "thinlto-cache-policy=">,
HelpText<"Pruning policy for the ThinLTO cache">,
Group<grp_lld>;
def O : JoinedOrSeparate<["-"], "O">,
HelpText<"Optimize output file size">;
// This is a complete Options.td compiled from Apple's ld(1) manpage
// dated 2018-03-07 and cross checked with ld64 source code in repo
// https://github.com/apple-opensource/ld64 at git tag "512.4" dated
// 2018-03-18.
// Flags<[HelpHidden]> marks options that are not yet ported to lld,
// and serve as a scoreboard for annotating our progress toward
// implementing ld64 options in lld. As you add implementions to
// Driver.cpp, please remove the hidden flag here.
def grp_kind : OptionGroup<"kind">, HelpText<"OUTPUT KIND">;
def execute : Flag<["-"], "execute">,
HelpText<"Produce a main executable (default)">,
Group<grp_kind>;
def dylib : Flag<["-"], "dylib">,
HelpText<"Produce a shared library">,
Group<grp_kind>;
def bundle : Flag<["-"], "bundle">,
HelpText<"Produce a bundle">,
Group<grp_kind>;
def r : Flag<["-"], "r">,
HelpText<"Merge multiple object files into one, retaining relocations">,
Flags<[HelpHidden]>,
Group<grp_kind>;
def dylinker : Flag<["-"], "dylinker">,
HelpText<"Produce a dylinker only used when building dyld">,
Flags<[HelpHidden]>,
Group<grp_kind>;
def dynamic : Flag<["-"], "dynamic">,
HelpText<"Link dynamically (default)">,
Group<grp_kind>;
def static : Flag<["-"], "static">,
HelpText<"Link statically">,
Flags<[HelpHidden]>,
Group<grp_kind>;
def preload : Flag<["-"], "preload">,
HelpText<"Produce an unsegmented binary for embedded systems">,
Flags<[HelpHidden]>,
Group<grp_kind>;
def arch : Separate<["-"], "arch">,
MetaVarName<"<arch_name>">,
HelpText<"The architecture (e.g. ppc, ppc64, i386, x86_64)">,
Group<grp_kind>;
def o : Separate<["-"], "o">,
MetaVarName<"<path>">,
HelpText<"The name of the output file (default: `a.out')">,
Group<grp_kind>;
def grp_libs : OptionGroup<"libs">, HelpText<"LIBRARIES">;
def l : Joined<["-"], "l">,
MetaVarName<"<name>">,
HelpText<"Search for lib<name>.dylib or lib<name>.a on the library search path">,
Group<grp_libs>;
def weak_l : Joined<["-"], "weak-l">,
MetaVarName<"<name>">,
HelpText<"Like -l<name>, but mark library and its references as weak imports">,
Group<grp_libs>;
def weak_library : Separate<["-"], "weak_library">,
MetaVarName<"<path>">,
HelpText<"Like bare <path>, but mark library and its references as weak imports">,
Group<grp_libs>;
def needed_l : Joined<["-"], "needed-l">,
MetaVarName<"<name>">,
HelpText<"Like -l<name>, but link library even if its symbols are not used and -dead_strip_dylibs is active">,
Group<grp_libs>;
def needed_library : Separate<["-"], "needed_library">,
MetaVarName<"<path>">,
HelpText<"Like bare <path>, but link library even if its symbols are not used and -dead_strip_dylibs is active">,
Group<grp_libs>;
def reexport_l : Joined<["-"], "reexport-l">,
MetaVarName<"<name>">,
HelpText<"Like -l<name>, but export all symbols of <name> from newly created library">,
Group<grp_libs>;
def reexport_library : Separate<["-"], "reexport_library">,
MetaVarName<"<path>">,
HelpText<"Like bare <path>, but export all symbols of <path> from newly created library">,
Group<grp_libs>;
def upward_l : Joined<["-"], "upward-l">,
MetaVarName<"<name>">,
HelpText<"Like -l<name>, but specify dylib as an upward dependency">,
Flags<[HelpHidden]>,
Group<grp_libs>;
def upward_library : Separate<["-"], "upward_library">,
MetaVarName<"<path>">,
HelpText<"Like bare <path>, but specify dylib as an upward dependency">,
Flags<[HelpHidden]>,
Group<grp_libs>;
def L : JoinedOrSeparate<["-"], "L">,
MetaVarName<"<dir>">,
HelpText<"Add dir to the library search path">,
Group<grp_libs>;
def Z : Flag<["-"], "Z">,
HelpText<"Remove standard directories from the library and framework search paths">,
Group<grp_libs>;
def syslibroot : Separate<["-"], "syslibroot">,
MetaVarName<"<rootdir>">,
HelpText<"Prepend <rootdir> to all library and framework search paths">,
Group<grp_libs>;
def search_paths_first : Flag<["-"], "search_paths_first">,
HelpText<"Search for lib<name>.dylib and lib<name>.a at each step in traversing search path (default for Xcode 4 and later)">,
Group<grp_libs>;
def search_dylibs_first : Flag<["-"], "search_dylibs_first">,
HelpText<"Search for lib<name>.dylib on first pass, then for lib<name>.a on second pass through search path (default for Xcode 3 and earlier)">,
Group<grp_libs>;
def framework : Separate<["-"], "framework">,
MetaVarName<"<name>">,
HelpText<"Search for <name>.framework/<name> on the framework search path">,
Group<grp_libs>;
def weak_framework : Separate<["-"], "weak_framework">,
MetaVarName<"<name>">,
HelpText<"Like -framework <name>, but mark framework and its references as weak imports">,
Group<grp_libs>;
def needed_framework : Separate<["-"], "needed_framework">,
MetaVarName<"<name>">,
HelpText<"Like -framework <name>, but link <name> even if none of its symbols are used and -dead_strip_dylibs is active">,
Group<grp_libs>;
def reexport_framework : Separate<["-"], "reexport_framework">,
MetaVarName<"<name>">,
HelpText<"Like -framework <name>, but export all symbols of <name> from the newly created library">,
Group<grp_libs>;
def upward_framework : Separate<["-"], "upward_framework">,
MetaVarName<"<name>">,
HelpText<"Like -framework <name>, but specify the framework as an upward dependency">,
Flags<[HelpHidden]>,
Group<grp_libs>;
def F : JoinedOrSeparate<["-"], "F">,
MetaVarName<"<dir>">,
HelpText<"Add dir to the framework search path">,
Group<grp_libs>;
def all_load : Flag<["-"], "all_load">,
HelpText<"Load all members of all static archive libraries">,
Group<grp_libs>;
def ObjC : Flag<["-"], "ObjC">,
HelpText<"Load all members of static archives that are an Objective-C class or category.">,
Group<grp_libs>;
def force_load : Separate<["-"], "force_load">,
MetaVarName<"<path>">,
HelpText<"Load all members static archive library at <path>">,
Group<grp_libs>;
def force_load_swift_libs : Flag<["-"], "force_load_swift_libs">,
HelpText<"Apply -force_load to libraries listed in LC_LINKER_OPTIONS whose names start with 'swift'">,
Group<grp_libs>;
def grp_content : OptionGroup<"content">, HelpText<"ADDITIONAL CONTENT">;
def sectcreate : MultiArg<["-"], "sectcreate", 3>,
MetaVarName<"<segment> <section> <file>">,
HelpText<"Create <section> in <segment> from the contents of <file>">,
Group<grp_content>;
def segcreate : MultiArg<["-"], "segcreate", 3>,
MetaVarName<"<segment> <section> <file>">,
Alias<sectcreate>,
HelpText<"Alias for -sectcreate">,
Group<grp_content>;
def filelist : Separate<["-"], "filelist">,
MetaVarName<"<file>">,
HelpText<"Read names of files to link from <file>">,
Group<grp_content>;
def dtrace : Separate<["-"], "dtrace">,
MetaVarName<"<script>">,
HelpText<"Enable DTrace static probes according to declarations in <script>">,
Flags<[HelpHidden]>,
Group<grp_content>;
def grp_opts : OptionGroup<"opts">, HelpText<"OPTIMIZATIONS">;
def dead_strip : Flag<["-"], "dead_strip">,
HelpText<"Remove unreachable functions and data">,
Group<grp_opts>;
def order_file : Separate<["-"], "order_file">,
MetaVarName<"<file>">,
HelpText<"Layout functions and data according to specification in <file>">,
Group<grp_opts>;
def no_order_inits : Flag<["-"], "no_order_inits">,
HelpText<"Disable default reordering of initializer and terminator functions">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def no_order_data : Flag<["-"], "no_order_data">,
HelpText<"Disable default reordering of global data accessed at launch time">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def image_base : Separate<["-"], "image_base">,
MetaVarName<"<address>">,
HelpText<"Preferred hex load address for a dylib or bundle.">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def seg1addr : Separate<["-"], "seg1addr">,
MetaVarName<"<address>">,
Alias<image_base>,
HelpText<"Alias for -image_base">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def no_implicit_dylibs : Flag<["-"], "no_implicit_dylibs">,
HelpText<"Do not optimize public dylib transitive symbol references">,
Group<grp_opts>;
def exported_symbols_order : Separate<["-"], "exported_symbols_order">,
MetaVarName<"<file>">,
HelpText<"Specify frequently-used symbols in <file> to optimize symbol exports">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def no_zero_fill_sections : Flag<["-"], "no_zero_fill_sections">,
HelpText<"Explicitly store zeroed data in the final image">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def merge_zero_fill_sections : Flag<["-"], "merge_zero_fill_sections">,
HelpText<"Merge all zeroed data into the __zerofill section">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def no_branch_islands : Flag<["-"], "no_branch_islands">,
HelpText<"Disable infra for branches beyond the maximum branch distance.">,
Flags<[HelpHidden]>,
Group<grp_opts>;
def no_deduplicate : Flag<["-"], "no_deduplicate">,
HelpText<"Disable code deduplicaiton (synonym for `--icf=none')">,
Alias<icf_eq>, AliasArgs<["none"]>,
Group<grp_opts>;
def grp_version : OptionGroup<"version">, HelpText<"VERSION TARGETING">;
def platform_version : MultiArg<["-"], "platform_version", 3>,
MetaVarName<"<platform> <min_version> <sdk_version>">,
HelpText<"Platform (e.g., macos, ios, tvos, watchos, bridgeos, mac-catalyst, ios-sim, tvos-sim, watchos-sim, driverkit) and version numbers">,
Group<grp_version>;
def sdk_version : Separate<["-"], "sdk_version">,
HelpText<"This option is undocumented in ld64">,
Flags<[HelpHidden]>,
Group<grp_version>;
def macos_version_min : Separate<["-"], "macos_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest macOS version for which linked output is usable">,
Group<grp_version>;
def macosx_version_min : Separate<["-"], "macosx_version_min">,
MetaVarName<"<version>">,
Alias<macos_version_min>,
HelpText<"Alias for -macos_version_min">,
Flags<[HelpHidden]>,
Group<grp_version>;
def ios_version_min : Separate<["-"], "ios_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest iOS version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def ios_simulator_version_min : Separate<["-"], "ios_simulator_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest iOS simulator version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def iphoneos_version_min : Separate<["-"], "iphoneos_version_min">,
MetaVarName<"<version>">,
Alias<ios_version_min>,
HelpText<"Alias for -ios_version_min">,
Flags<[HelpHidden]>,
Group<grp_version>;
def maccatalyst_version_min : Separate<["-"], "maccatalyst_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest MacCatalyst version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def iosmac_version_min : Separate<["-"], "iosmac_version_min">,
MetaVarName<"<version>">,
Alias<maccatalyst_version_min>,
HelpText<"Alias for -maccatalyst_version_min">,
Flags<[HelpHidden]>,
Group<grp_version>;
def uikitformac_version_min : Separate<["-"], "uikitformac_version_min">,
MetaVarName<"<version>">,
Alias<maccatalyst_version_min>,
HelpText<"Alias for -maccatalyst_version_min">,
Flags<[HelpHidden]>,
Group<grp_version>;
def tvos_version_min : Separate<["-"], "tvos_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest tvOS version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def watchos_version_min : Separate<["-"], "watchos_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest watchOS version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def bridgeos_version_min : Separate<["-"], "bridgeos_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest bridgeOS version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def driverkit_version_min : Separate<["-"], "driverkit_version_min">,
MetaVarName<"<version>">,
HelpText<"Oldest DriverKit version for which linked output is usable">,
Flags<[HelpHidden]>,
Group<grp_version>;
def grp_dylib : OptionGroup<"dylib">, HelpText<"DYNAMIC LIBRARIES (DYLIB)">;
def install_name : Separate<["-"], "install_name">,
MetaVarName<"<name>">,
HelpText<"Set an internal install path in a dylib">,
Group<grp_dylib>;
def dylib_install_name : Separate<["-"], "dylib_install_name">,
MetaVarName<"<name>">,
Alias<install_name>,
HelpText<"Alias for -install_name">,
Group<grp_dylib>;
def dylinker_install_name : Separate<["-"], "dylinker_install_name">,
MetaVarName<"<name>">,
Alias<install_name>,
HelpText<"Alias for -install_name">,
Group<grp_dylib>;
def mark_dead_strippable_dylib : Flag<["-"], "mark_dead_strippable_dylib">,
HelpText<"Mark output dylib as dead-strippable: When a client links against it but does not use any of its symbols, the dylib will not be added to the client's list of needed dylibs">,
Group<grp_dylib>;
def compatibility_version : Separate<["-"], "compatibility_version">,
MetaVarName<"<version>">,
HelpText<"Compatibility <version> of this library">,
Group<grp_dylib>;
def dylib_compatibility_version : Separate<["-"], "dylib_compatibility_version">,
MetaVarName<"<version>">,
Alias<compatibility_version>,
HelpText<"Alias for -compatibility_version">,
Flags<[HelpHidden]>,
Group<grp_dylib>;
def current_version : Separate<["-"], "current_version">,
MetaVarName<"<version>">,
HelpText<"Current <version> of this library">,
Group<grp_dylib>;
def dylib_current_version : Separate<["-"], "dylib_current_version">,
MetaVarName<"<version>">,
Alias<current_version>,
HelpText<"Alias for -current_version">,
Flags<[HelpHidden]>,
Group<grp_dylib>;
def grp_main : OptionGroup<"main">, HelpText<"MAIN EXECUTABLE">;
def pie : Flag<["-"], "pie">,
HelpText<"Build a position independent executable (default)">,
Group<grp_main>;
def no_pie : Flag<["-"], "no_pie">,
HelpText<"Do not build a position independent executable">,
Group<grp_main>;
def pagezero_size : Separate<["-"], "pagezero_size">,
MetaVarName<"<size>">,
HelpText<"Size of unreadable segment at address zero is hex <size> (default is 4KB on 32-bit and 4GB on 64-bit)">,
Flags<[HelpHidden]>,
Group<grp_main>;
def stack_size : Separate<["-"], "stack_size">,
MetaVarName<"<size>">,
HelpText<"Maximum hex stack size for the main thread in a program. (default is 8MB)">,
Flags<[HelpHidden]>,
Group<grp_main>;
def allow_stack_execute : Flag<["-"], "allow_stack_execute">,
HelpText<"Mark stack segment as executable">,
Flags<[HelpHidden]>,
Group<grp_main>;
def export_dynamic : Flag<["-"], "export_dynamic">,
HelpText<"Preserve all global symbols during LTO and when dead-stripping executables">,
Group<grp_main>;
def grp_bundle : OptionGroup<"bundle">, HelpText<"CREATING A BUNDLE">;
def bundle_loader : Separate<["-"], "bundle_loader">,
MetaVarName<"<executable>">,
HelpText<"Resolve undefined symbols from <executable>">,
Group<grp_bundle>;
def grp_object : OptionGroup<"object">, HelpText<"CREATING AN OBJECT FILE">;
def keep_private_externs : Flag<["-"], "keep_private_externs">,
HelpText<"Do not convert private external symbols to static symbols (only valid with -r)">,
Flags<[HelpHidden]>,
Group<grp_object>;
def d : Flag<["-"], "d">,
HelpText<"Force tentative into real definitions for common symbols">,
Flags<[HelpHidden]>,
Group<grp_object>;
def grp_resolve : OptionGroup<"resolve">, HelpText<"SYMBOL RESOLUTION">;
def exported_symbol : Separate<["-"], "exported_symbol">,
MetaVarName<"<symbol>">,
HelpText<"<symbol> remains global, while others become private externs">,
Group<grp_resolve>;
def exported_symbols_list : Separate<["-"], "exported_symbols_list">,
MetaVarName<"<file>">,
HelpText<"Symbols specified in <file> remain global, while others become private externs">,
Group<grp_resolve>;
def unexported_symbol : Separate<["-"], "unexported_symbol">,
MetaVarName<"<symbol>">,
HelpText<"Global <symbol> becomes private extern">,
Group<grp_resolve>;
def unexported_symbols_list : Separate<["-"], "unexported_symbols_list">,
MetaVarName<"<file>">,
HelpText<"Global symbols specified in <file> become private externs">,
Group<grp_resolve>;
def reexported_symbols_list : Separate<["-"], "reexported_symbols_list">,
MetaVarName<"<file>">,
HelpText<"Symbols from dependent dylibs specified in <file> are reexported by this dylib">,
Flags<[HelpHidden]>,
Group<grp_resolve>;
def alias : MultiArg<["-"], "alias", 2>,
MetaVarName<"<symbol_name> <alternate_name>">,
HelpText<"Create a symbol alias with default global visibility">,
Flags<[HelpHidden]>,
Group<grp_resolve>;
def alias_list : Separate<["-"], "alias_list">,
MetaVarName<"<file>">,
HelpText<"Create symbol aliases specified in <file>">,
Flags<[HelpHidden]>,
Group<grp_resolve>;
def flat_namespace : Flag<["-"], "flat_namespace">,
HelpText<"Resolve symbols from all dylibs, both direct and transitive. Do not record source libraries: dyld must re-search at runtime and use the first definition found">,
Group<grp_resolve>;
def twolevel_namespace : Flag<["-"], "twolevel_namespace">,
HelpText<"Make dyld look up symbols by (dylib,name) pairs (default)">,
Group<grp_resolve>;
def u : Separate<["-"], "u">,
MetaVarName<"<symbol>">,
HelpText<"Require that <symbol> be defined for the link to succeed">,
Group<grp_resolve>;
def U : Separate<["-"], "U">,
MetaVarName<"<symbol>">,
HelpText<"Allow <symbol> to have no definition">,
Group<grp_resolve>;
def undefined : Separate<["-"], "undefined">,
MetaVarName<"<treatment>">,
HelpText<"Handle undefined symbols according to <treatment>: error, warning, suppress, or dynamic_lookup (default is error)">,
Group<grp_resolve>;
def rpath : Separate<["-"], "rpath">,
MetaVarName<"<path>">,
HelpText<"Add <path> to dyld search list for dylibs with load path prefix `@rpath/'">,
Group<grp_resolve>;
def commons : Separate<["-"], "commons">,
MetaVarName<"<treatment>">,
HelpText<"Resolve tentative definitions in dylibs according to <treatment>: ignore_dylibs, use_dylibs, error (default is ignore_dylibs)">,
Flags<[HelpHidden]>,
Group<grp_resolve>;
def grp_introspect : OptionGroup<"introspect">, HelpText<"INTROSPECTING THE LINKER">;
def why_load : Flag<["-"], "why_load">,
HelpText<"Log why each object file is loaded from a static library">,
Group<grp_introspect>;
def whyload : Flag<["-"], "whyload">,
Alias<why_load>,
HelpText<"Alias for -why_load">,
Group<grp_introspect>;
def why_live : Separate<["-"], "why_live">,
MetaVarName<"<symbol>">,
HelpText<"Log a chain of references to <symbol>, for use with -dead_strip">,
Flags<[HelpHidden]>,
Group<grp_introspect>;
def print_statistics : Flag<["-"], "print_statistics">,
HelpText<"Log the linker's memory and CPU usage">,
Flags<[HelpHidden]>,
Group<grp_introspect>;
def t : Flag<["-"], "t">,
HelpText<"Log every file the linker loads: object, archive, and dylib">,
Group<grp_introspect>;
def whatsloaded : Flag<["-"], "whatsloaded">,
HelpText<"Logs only the object files the linker loads">,
Flags<[HelpHidden]>,
Group<grp_introspect>;
def order_file_statistics : Flag<["-"], "order_file_statistics">,
HelpText<"Logs information about -order_file">,
Flags<[HelpHidden]>,
Group<grp_introspect>;
def map : Separate<["-"], "map">,
MetaVarName<"<path>">,
HelpText<"Writes all symbols and their addresses to <path>">,
Group<grp_introspect>;
def dependency_info : Separate<["-"], "dependency_info">,
MetaVarName<"<path>">,
HelpText<"Dump dependency info">,
Group<grp_introspect>;
def save_temps : Flag<["-"], "save-temps">,
HelpText<"Save intermediate LTO compilation results">,
Group<grp_introspect>;
def grp_symtab : OptionGroup<"symtab">, HelpText<"SYMBOL TABLE">;
def S : Flag<["-"], "S">,
HelpText<"Strip debug information (STABS or DWARF) from the output">,
Group<grp_symtab>;
def x : Flag<["-"], "x">,
HelpText<"Exclude non-global symbols from the output symbol table">,
Flags<[HelpHidden]>,
Group<grp_symtab>;
def non_global_symbols_strip_list : Separate<["-"], "non_global_symbols_strip_list">,
MetaVarName<"<path>">,
HelpText<"Specify in <path> the non-global symbols that should be removed from the output symbol table">,
Flags<[HelpHidden]>,
Group<grp_symtab>;
def non_global_symbols_no_strip_list : Separate<["-"], "non_global_symbols_no_strip_list">,
MetaVarName<"<path>">,
HelpText<"Specify in <path> the non-global symbols that should remain in the output symbol table">,
Flags<[HelpHidden]>,
Group<grp_symtab>;
def oso_prefix : Separate<["-"], "oso_prefix">,
MetaVarName<"<path>">,
HelpText<"Remove the prefix <path> from OSO symbols in the debug map">,
Group<grp_symtab>;
def add_ast_path : Separate<["-"], "add_ast_path">,
MetaVarName<"<path>">,
HelpText<"AST paths will be emitted as STABS">,
Group<grp_symtab>;
def grp_bitcode : OptionGroup<"bitcode">, HelpText<"BITCODE BUILD FLOW">;
def bitcode_bundle : Flag<["-"], "bitcode_bundle">,
HelpText<"Generate an embedded bitcode bundle in the __LLVM,__bundle section of the output">,
Group<grp_bitcode>;
def bitcode_hide_symbols : Flag<["-"], "bitcode_hide_symbols">,
HelpText<"With -bitcode_bundle, hide all non-exported symbols from output bitcode bundle.">,
Flags<[HelpHidden]>,
Group<grp_bitcode>;
def bitcode_symbol_map : Separate<["-"], "bitcode_symbol_map">,
MetaVarName<"<path>">,
HelpText<"Write the bitcode symbol reverse mapping to file <path>, or if a directory, to <path>/UUID.bcsymbolmap">,
Flags<[HelpHidden]>,
Group<grp_bitcode>;
def grp_rare : OptionGroup<"rare">, HelpText<"RARELY USED">;
def v : Flag<["-"], "v">,
HelpText<"Print the linker version and search paths in addition to linking">,
Group<grp_rare>;
def adhoc_codesign : Flag<["-"], "adhoc_codesign">,
HelpText<"Write an ad-hoc code signature to the output file (default for arm64 binaries)">,
Group<grp_rare>;
def no_adhoc_codesign : Flag<["-"], "no_adhoc_codesign">,
HelpText<"Do not write an ad-hoc code signature to the output file (default for x86_64 binaries)">,
Group<grp_rare>;
def version_details : Flag<["-"], "version_details">,
HelpText<"Print the linker version in JSON form">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_weak_imports : Flag<["-"], "no_weak_imports">,
HelpText<"Fail if any symbols are weak imports, allowed to be NULL at runtime">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def verbose_deduplicate : Flag<["-"], "verbose_deduplicate">,
HelpText<"Print function names eliminated by deduplication and the total size of code savings">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_inits : Flag<["-"], "no_inits">,
HelpText<"Fail if the output contains static initializers">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_warn_inits : Flag<["-"], "no_warn_inits">,
HelpText<"Suppress warnings for static initializers in the output">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def debug_variant : Flag<["-"], "debug_variant">,
HelpText<"Suppress warnings germane to binaries shipping to customers">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def unaligned_pointers : Separate<["-"], "unaligned_pointers">,
MetaVarName<"<treatment>">,
HelpText<"Handle unaligned pointers in __DATA segments according to <treatment>: warning, error, or suppress (default for arm64e is error, otherwise suppress)">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def dirty_data_list : Separate<["-"], "dirty_data_list">,
MetaVarName<"<path>">,
HelpText<"Specify data symbols in <path> destined for the __DATA_DIRTY segment">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def max_default_common_align : Separate<["-"], "max_default_common_align">,
MetaVarName<"<boundary>">,
HelpText<"Reduce maximum alignment for common symbols to a hex power-of-2 <boundary>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def move_to_rw_segment : MultiArg<["-"], "move_to_rw_segment", 2>,
MetaVarName<"<segment> <path>">,
HelpText<"Move data symbols listed in <path> to another <segment>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def move_to_ro_segment : MultiArg<["-"], "move_to_ro_segment", 2>,
MetaVarName<"<segment> <path>">,
HelpText<"Move code symbols listed in <path> to another <segment>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def rename_section : MultiArg<["-"], "rename_section", 4>,
MetaVarName<"<from_segment> <from_section> <to_segment> <to_section>">,
HelpText<"Rename <from_segment>/<from_section> as <to_segment>/<to_section>">,
Group<grp_rare>;
def rename_segment : MultiArg<["-"], "rename_segment", 2>,
MetaVarName<"<from_segment> <to_segment>">,
HelpText<"Rename <from_segment> as <to_segment>">,
Group<grp_rare>;
def trace_symbol_layout : Flag<["-"], "trace_symbol_layout">,
HelpText<"Show where and why symbols move, as specified by -move_to_ro_segment, -move_to_rw_segment, -rename_section, and -rename_segment">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def data_const : Flag<["-"], "data_const">,
HelpText<"Force migration of readonly data into __DATA_CONST segment">,
Group<grp_rare>;
def no_data_const : Flag<["-"], "no_data_const">,
HelpText<"Block migration of readonly data away from __DATA segment">,
Group<grp_rare>;
def text_exec : Flag<["-"], "text_exec">,
HelpText<"Rename __segment TEXT to __TEXT_EXEC for sections __text and __stubs">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def section_order : MultiArg<["-"], "section_order", 2>,
MetaVarName<"<segment> <sections>">,
HelpText<"With -preload, specify layout sequence of colon-separated <sections> in <segment>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def segment_order : Separate<["-"], "segment_order">,
MetaVarName<"<colon_separated_segment_list>">,
HelpText<"With -preload, specify layout sequence of colon-separated <segments>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def allow_heap_execute : Flag<["-"], "allow_heap_execute">,
HelpText<"On i386, allow any page to execute code">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def application_extension : Flag<["-"], "application_extension">,
HelpText<"Mark output as safe for use in an application extension, and validate that linked dylibs are safe">,
Group<grp_rare>;
def no_application_extension : Flag<["-"], "no_application_extension">,
HelpText<"Disable application extension functionality (default)">,
Group<grp_rare>;
def fatal_warnings : Flag<["-"], "fatal_warnings">,
HelpText<"Treat warnings as errors">,
Group<grp_rare>;
def no_eh_labels : Flag<["-"], "no_eh_labels">,
HelpText<"In -r mode, suppress .eh labels in the __eh_frame section">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def warn_compact_unwind : Flag<["-"], "warn_compact_unwind">,
HelpText<"Warn for each FDE that cannot compact into the __unwind_info section and must remain in the __eh_frame section">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def warn_weak_exports : Flag<["-"], "warn_weak_exports">,
HelpText<"Warn if the linked image contains weak external symbols">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_weak_exports : Flag<["-"], "no_weak_exports">,
HelpText<"Fail if the linked image contains weak external symbols">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def objc_gc_compaction : Flag<["-"], "objc_gc_compaction">,
HelpText<"Mark the Objective-C image as compatible with compacting garbage collection">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def objc_gc : Flag<["-"], "objc_gc">,
HelpText<"Verify that all code was compiled with -fobjc-gc or -fobjc-gc-only">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def objc_gc_only : Flag<["-"], "objc_gc_only">,
HelpText<"Verify that all code was compiled with -fobjc-gc-only">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def dead_strip_dylibs : Flag<["-"], "dead_strip_dylibs">,
HelpText<"Remove dylibs that are unreachable by the entry point or exported symbols">,
Group<grp_rare>;
def allow_sub_type_mismatches : Flag<["-"], "allow_sub_type_mismatches">,
HelpText<"Permit mixing objects compiled for different ARM CPU subtypes">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_uuid : Flag<["-"], "no_uuid">,
HelpText<"Do not generate the LC_UUID load command">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def root_safe : Flag<["-"], "root_safe">,
HelpText<"Set the MH_ROOT_SAFE bit in the mach-o header">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def setuid_safe : Flag<["-"], "setuid_safe">,
HelpText<"Set the MH_SETUID_SAFE bit in the mach-o header">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def interposable : Flag<["-"], "interposable">,
HelpText<"Indirects access to all to exported symbols in a dylib">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def multi_module : Flag<["-"], "multi_module">,
Alias<interposable>,
HelpText<"Alias for -interposable">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def init : Separate<["-"], "init">,
MetaVarName<"<symbol>">,
HelpText<"Run <symbol> as the first initializer in a dylib">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def sub_library : Separate<["-"], "sub_library">,
MetaVarName<"<name>">,
HelpText<"Re-export the dylib as <name>">,
Group<grp_rare>;
def sub_umbrella : Separate<["-"], "sub_umbrella">,
MetaVarName<"<name>">,
HelpText<"Re-export the framework as <name>">,
Group<grp_rare>;
def allowable_client : Separate<["-"], "allowable_client">,
MetaVarName<"<name>">,
HelpText<"Specify <name> of a dylib or framework that is allowed to link to this dylib">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def client_name : Separate<["-"], "client_name">,
MetaVarName<"<name>">,
HelpText<"Specifies a <name> this client should match with the -allowable_client <name> in a dependent dylib">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def umbrella : Separate<["-"], "umbrella">,
MetaVarName<"<name>">,
HelpText<"Re-export this dylib through the umbrella framework <name>">,
Group<grp_rare>;
def headerpad : Separate<["-"], "headerpad">,
MetaVarName<"<size>">,
HelpText<"Allocate hex <size> extra space for future expansion of the load commands via install_name_tool (default is 0x20)">,
Group<grp_rare>;
def headerpad_max_install_names : Flag<["-"], "headerpad_max_install_names">,
HelpText<"Allocate extra space so all load-command paths can expand to MAXPATHLEN via install_name_tool">,
Group<grp_rare>;
def bind_at_load : Flag<["-"], "bind_at_load">,
HelpText<"Tell dyld to bind all symbols at load time, rather than lazily">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def force_flat_namespace : Flag<["-"], "force_flat_namespace">,
HelpText<"Tell dyld to use a flat namespace on this executable and all its dependent dylibs & bundles">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def segalign : Separate<["-"], "segalign">,
MetaVarName<"<boundary>">,
HelpText<"Align all segments to hex power-of-2 <boundary>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def sectalign : MultiArg<["-"], "sectalign", 3>,
MetaVarName<"<segment> <section> <boundary>">,
HelpText<"Align <section> within <segment> to hex power-of-2 <boundary>">,
Group<grp_rare>;
def stack_addr : Separate<["-"], "stack_addr">,
MetaVarName<"<address>">,
HelpText<"Initialize stack pointer to hex <address> rounded to a page boundary">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def segprot : MultiArg<["-"], "segprot", 3>,
MetaVarName<"<segment> <max> <init>">,
HelpText<"Specifies the <max> and <init> virtual memory protection of <segment> as r/w/x/-seg_addr_table path">,
Group<grp_rare>;
def segs_read_write_addr : Separate<["-"], "segs_read_write_addr">,
MetaVarName<"<address>">,
HelpText<"This option is obsolete">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def segs_read_only_addr : Separate<["-"], "segs_read_only_addr">,
MetaVarName<"<address>">,
HelpText<"This option is obsolete">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def segaddr : MultiArg<["-"], "segaddr", 2>,
MetaVarName<"<segment> <address>">,
HelpText<"Specify the starting hex <address> at a 4KiB page boundary for <segment>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def seg_page_size : MultiArg<["-"], "seg_page_size", 2>,
MetaVarName<"<segment> <size>">,
HelpText<"Specifies the page <size> for <segment>. Segment size will be a multiple of its page size">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def dylib_file : Separate<["-"], "dylib_file">,
MetaVarName<"<install_path:current_path>">,
HelpText<"Specify <current_path> as different from where a dylib normally resides at <install_path>">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def weak_reference_mismatches : Separate<["-"], "weak_reference_mismatches">,
MetaVarName<"<treatment>">,
HelpText<"Resolve symbol imports of conflicting weakness according to <treatment> as weak, non-weak, or error (default is non-weak)">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def read_only_relocs : Separate<["-"], "read_only_relocs">,
MetaVarName<"<treatment>">,
HelpText<"Handle relocations that modify read-only pages according to <treatment> of warning, error, or suppress (i.e., allow)">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def force_cpusubtype_ALL : Flag<["-"], "force_cpusubtype_ALL">,
HelpText<"Mark binary as runnable on any PowerPC, ignoring any PowerPC cpu requirements encoded in the object files">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_arch_warnings : Flag<["-"], "no_arch_warnings">,
HelpText<"Suppresses warnings about inputs whose architecture does not match the -arch option">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def arch_errors_fatal : Flag<["-"], "arch_errors_fatal">,
HelpText<"Escalate to errors any warnings about inputs whose architecture does not match the -arch option">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def e : Separate<["-"], "e">,
MetaVarName<"<symbol>">,
HelpText<"Make <symbol> the entry point of an executable (default is \"start\" from crt1.o)">,
Group<grp_rare>;
def w : Flag<["-"], "w">,
HelpText<"Suppress all warnings">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def final_output : Separate<["-"], "final_output">,
MetaVarName<"<name>">,
HelpText<"Specify dylib install name if -install_name is not used; used by compiler driver for multiple -arch arguments">,
Group<grp_rare>;
def arch_multiple : Flag<["-"], "arch_multiple">,
HelpText<"Augment error and warning messages with the architecture name">,
Group<grp_rare>;
def dot : Separate<["-"], "dot">,
MetaVarName<"<path>">,
HelpText<"Write a graph of symbol dependencies to <path> as a .dot file viewable with GraphViz">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def keep_relocs : Flag<["-"], "keep_relocs">,
HelpText<"Retain section-based relocation records in the output, which are ignored at runtime by dyld">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def warn_stabs : Flag<["-"], "warn_stabs">,
HelpText<"Warn when bad stab symbols inside a BINCL/EINCL prevent optimization">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def warn_commons : Flag<["-"], "warn_commons">,
HelpText<"Warn when a tentative definition in an object file matches an external symbol in a dylib, which often means \"extern\" is missing from a variable declaration in a header file">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def read_only_stubs : Flag<["-"], "read_only_stubs">,
HelpText<"On i386, make the __IMPORT segment of a final linked image read-only">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def interposable_list : Separate<["-"], "interposable_list">,
MetaVarName<"<path>">,
HelpText<"Access global symbols listed in <path> indirectly">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def no_function_starts : Flag<["-"], "no_function_starts">,
HelpText<"Do not create table of function start addresses">,
Group<grp_rare>;
def no_objc_category_merging : Flag<["-"], "no_objc_category_merging">,
HelpText<"Do not merge Objective-C categories into their classes">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def object_path_lto : Separate<["-"], "object_path_lto">,
MetaVarName<"<path>">,
HelpText<"Retain any temporary mach-o file in <path> that would otherwise be deleted during LTO">,
Group<grp_rare>;
def cache_path_lto : Separate<["-"], "cache_path_lto">,
MetaVarName<"<path>">,
HelpText<"Use <path> as a directory for the incremental LTO cache">,
Group<grp_rare>;
def prune_interval_lto : Separate<["-"], "prune_interval_lto">,
MetaVarName<"<seconds>">,
HelpText<"Prune the incremental LTO cache after <seconds> (-1 disables pruning)">,
Group<grp_rare>;
def prune_after_lto : Separate<["-"], "prune_after_lto">,
MetaVarName<"<seconds>">,
HelpText<"Remove LTO cache entries after <seconds>">,
Group<grp_rare>;
def max_relative_cache_size_lto : Separate<["-"], "max_relative_cache_size_lto">,
MetaVarName<"<percent>">,
HelpText<"Limit the incremental LTO cache growth to <percent> of free disk, space">,
Group<grp_rare>;
def page_align_data_atoms : Flag<["-"], "page_align_data_atoms">,
HelpText<"Distribute global variables on separate pages so page used/dirty status can guide creation of an order file to cluster commonly used/dirty globals">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def not_for_dyld_shared_cache : Flag<["-"], "not_for_dyld_shared_cache">,
HelpText<"Prevent system dylibs from being placed into the dylib shared cache">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def mllvm : Separate<["-"], "mllvm">,
HelpText<"Options to pass to LLVM">,
Group<grp_rare>;
def mcpu : Separate<["-"], "mcpu">,
HelpText<"Processor family target for LTO code generation">,
Group<grp_rare>;
def no_dtrace_dof : Flag<["-"], "no_dtrace_dof">,
HelpText<"Disable dtrace-dof processing (default).">,
Group<grp_rare>;
def grp_deprecated : OptionGroup<"deprecated">, HelpText<"DEPRECATED">;
def lazy_framework : Separate<["-"], "lazy_framework">,
MetaVarName<"<name>">,
HelpText<"This option is deprecated and is now an alias for -framework.">,
Flags<[HelpHidden]>,
Group<grp_deprecated>;
def lazy_library : Separate<["-"], "lazy_library">,
MetaVarName<"<path>">,
HelpText<"This option is deprecated and is now an alias for regular linking">,
Flags<[HelpHidden]>,
Group<grp_deprecated>;
def lazy_l : Joined<["-"], "lazy-l">,
MetaVarName<"<name>">,
HelpText<"This option is deprecated and is now an alias for -l<path>.">,
Flags<[HelpHidden]>,
Group<grp_deprecated>;
def single_module : Flag<["-"], "single_module">,
HelpText<"Unnecessary option: this is already the default">,
Flags<[HelpHidden]>,
Group<grp_deprecated>;
def no_dead_strip_inits_and_terms : Flag<["-"], "no_dead_strip_inits_and_terms">,
HelpText<"Unnecessary option: initialization and termination are roots of the dead strip graph, so never dead stripped">,
Flags<[HelpHidden]>,
Group<grp_deprecated>;
def noall_load : Flag<["-"], "noall_load">,
HelpText<"Unnecessary option: this is already the default">,
Flags<[HelpHidden]>,
Group<grp_deprecated>;
def grp_obsolete : OptionGroup<"obsolete">, HelpText<"OBSOLETE">;
def sectorder : MultiArg<["-"], "sectorder", 3>,
MetaVarName<"<segname> <sectname> <orderfile>">,
HelpText<"Obsolete. Replaced by more general -order_file option">,
Group<grp_obsolete>;
def lto_library : Separate<["-"], "lto_library">,
MetaVarName<"<path>">,
HelpText<"Obsolete. LLD supports LTO directly, without using an external dylib.">,
Group<grp_obsolete>;
def y : Joined<["-"], "y">,
MetaVarName<"<symbol>">,
HelpText<"This option is obsolete in ld64">,
Flags<[HelpHidden]>,
Group<grp_obsolete>;
def sectobjectsymbols : MultiArg<["-"], "sectobjectsymbols", 2>,
MetaVarName<"<segname> <sectname>">,
HelpText<"This option is obsolete in ld64">,