include "llvm/Option/OptParser.td"
// Convenience classes for long options which only accept two dashes. For lld
// specific or newer long options, we prefer two dashes to avoid collision with
// short options. For many others, we have to accept both forms to be compatible
// with GNU ld.
class FF<string name> : Flag<["--"], name>;
class JJ<string name>: Joined<["--"], name>;
multiclass EEq<string name, string help> {
def NAME: Separate<["--"], name>;
def NAME # _eq: Joined<["--"], name # "=">, Alias<!cast<Separate>(NAME)>,
HelpText<help>;
}
multiclass BB<string name, string help1, string help2> {
def NAME: Flag<["--"], name>, HelpText<help1>;
def no_ # NAME: Flag<["--"], "no-" # name>, HelpText<help2>;
}
// For options whose names are multiple letters, either one dash or
// two can precede the option name except those that start with 'o'.
class F<string name>: Flag<["--", "-"], name>;
class J<string name>: Joined<["--", "-"], name>;
class S<string name>: Separate<["--", "-"], name>;
multiclass Eq<string name, string help> {
def NAME: Separate<["--", "-"], name>;
def NAME # _eq: Joined<["--", "-"], name # "=">, Alias<!cast<Separate>(NAME)>,
HelpText<help>;
}
multiclass B<string name, string help1, string help2> {
def NAME: Flag<["--", "-"], name>, HelpText<help1>;
def no_ # NAME: Flag<["--", "-"], "no-" # name>, HelpText<help2>;
}
// The following flags are shared with the ELF linker
def Bsymbolic: F<"Bsymbolic">, HelpText<"Bind defined symbols locally">;
def Bdynamic: F<"Bdynamic">, HelpText<"Link against shared libraries">;
def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries (default)">;
defm allow_multiple_definition: B<"allow-multiple-definition",
"Allow multiple definitions",
"Do not allow multiple definitions (default)">;
def build_id: F<"build-id">, HelpText<"Alias for --build-id=fast">;
def build_id_eq: J<"build-id=">, HelpText<"Generate build ID note">,
MetaVarName<"[fast,sha1,uuid,0x<hexstring>]">;
defm color_diagnostics: B<"color-diagnostics",
"Alias for --color-diagnostics=always",
"Alias for --color-diagnostics=never">;
def color_diagnostics_eq: J<"color-diagnostics=">,
HelpText<"Use colors in diagnostics (default: auto)">,
MetaVarName<"[auto,always,never]">;
def compress_relocations: F<"compress-relocations">,
HelpText<"Compress the relocation targets in the code section.">;
defm demangle: B<"demangle",
"Demangle symbol names (default)",
"Do not demangle symbol names">;
def emit_relocs: F<"emit-relocs">, HelpText<"Generate relocations in output">;
def error_unresolved_symbols: F<"error-unresolved-symbols">,
HelpText<"Report unresolved symbols as errors">;
defm export_dynamic: B<"export-dynamic",
"Put symbols in the dynamic symbol table",
"Do not put symbols in the dynamic symbol table (default)">;
def end_lib: F<"end-lib">,
HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;
def entry: S<"entry">, MetaVarName<"<entry>">,
HelpText<"Name of entry point symbol">;
defm error_limit:
EEq<"error-limit", "Maximum number of errors to emit before stopping (0 = no limit)">;
defm fatal_warnings: B<"fatal-warnings",
"Treat warnings as errors",
"Do not treat warnings as errors (default)">;
defm gc_sections: B<"gc-sections",
"Enable garbage collection of unused sections (defualt)",
"Disable garbage collection of unused sections">;
defm merge_data_segments: BB<"merge-data-segments",
"Enable merging data segments (default)",
"Disable merging data segments">;
def help: F<"help">, HelpText<"Print option help">;
def library: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,
HelpText<"Root name of library to use">;
def library_path: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
HelpText<"Add a directory to the library search path">;
def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
defm mllvm: Eq<"mllvm", "Additional arguments to forward to LLVM's option processing">;
defm Map: Eq<"Map", "Print a link map to the specified file">;
def noinhibit_exec: F<"noinhibit-exec">,
HelpText<"Retain the executable output file whenever it is still usable">;
def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
HelpText<"Path to file to write output">;
def O: JoinedOrSeparate<["-"], "O">, HelpText<"Optimize output file size">;
defm pie: B<"pie",
"Create a position independent executable",
"Do not create a position independent executable (default)">;
defm print_gc_sections: B<"print-gc-sections",
"List removed unused sections",
"Do not list removed unused sections (default)">;
def print_map: F<"print-map">,
HelpText<"Print a link map to the standard output">;
def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
defm reproduce: EEq<"reproduce", "Dump linker invocation and input files for debugging">;
defm rsp_quoting: Eq<"rsp-quoting", "Quoting style for response files">,
MetaVarName<"[posix,windows]">;
def shared: F<"shared">, HelpText<"Build a shared object">;
def start_lib: F<"start-lib">,
HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;
def strip_all: F<"strip-all">, HelpText<"Strip all symbols">;
def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
defm threads
: Eq<"threads", "Number of threads. '1' disables multi-threading. By "
"default all available hardware threads are used">;
def trace: F<"trace">, HelpText<"Print the names of the input files">;
defm trace_symbol: Eq<"trace-symbol", "Trace references to symbols">;
defm undefined: Eq<"undefined", "Force undefined symbol during linking">;
defm unresolved_symbols:
Eq<"unresolved-symbols", "Determine how to handle unresolved symbols">;
def v: Flag<["-"], "v">, HelpText<"Display the version number">;
def verbose: F<"verbose">, HelpText<"Verbose mode">;
def version: F<"version">, HelpText<"Display the version number and exit">;
def warn_unresolved_symbols: F<"warn-unresolved-symbols">,
HelpText<"Report unresolved symbols as warnings">;
defm wrap: Eq<"wrap", "Use wrapper functions for symbol">,
MetaVarName<"<symbol>=<symbol>">;
def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
HelpText<"Linker option extensions">;
// The follow flags are unique to wasm
def allow_undefined: F<"allow-undefined">,
HelpText<"Allow undefined symbols in linked binary. "
"This options is equivalent to --import-undefined "
"and --unresolved-symbols=ignore-all">;
def import_undefined: F<"import-undefined">,
HelpText<"Turn undefined symbols into imports where possible">;
def allow_undefined_file: J<"allow-undefined-file=">,
HelpText<"Allow symbols listed in <file> to be undefined in linked binary">;
def allow_undefined_file_s: Separate<["-"], "allow-undefined-file">,
Alias<allow_undefined_file>;
defm export: Eq<"export", "Force a symbol to be exported">;
defm export_if_defined: Eq<"export-if-defined",
"Force a symbol to be exported, if it is defined in the input">;
def export_all: FF<"export-all">,
HelpText<"Export all symbols (normally combined with --no-gc-sections)">;
def export_table: FF<"export-table">,
HelpText<"Export function table to the environment">;
def growable_table: FF<"growable-table">,
HelpText<"Remove maximum size from function table, allowing table to grow">;
def global_base: JJ<"global-base=">,
HelpText<"Memory offset at which to place global data (Defaults to 1024)">;
defm keep_section: Eq<"keep-section",
"Preserve a section even when --strip-all is given. This is useful for compiler drivers such as clang or emcc that, for example, depend on the features section for post-link processing. Can be specified multiple times to keep multiple sections">;
def import_memory: FF<"import-memory">,
HelpText<"Import the module's memory from the default module of \"env\" with the name \"memory\".">;
def import_memory_with_name: JJ<"import-memory=">,
HelpText<"Import the module's memory from the passed module with the passed name.">,
MetaVarName<"<module>,<name>">;
def export_memory: FF<"export-memory">,
HelpText<"Export the module's memory with the default name of \"memory\"">;
def export_memory_with_name: JJ<"export-memory=">,
HelpText<"Export the module's memory with the passed name">;
def shared_memory: FF<"shared-memory">,
HelpText<"Use shared linear memory">;
defm soname: Eq<"soname", "Set the module name in the generated name section">;
def import_table: FF<"import-table">,
HelpText<"Import function table from the environment">;
def initial_heap: JJ<"initial-heap=">,
HelpText<"Initial size of the heap">;
def initial_memory: JJ<"initial-memory=">,
HelpText<"Initial size of the linear memory">;
def max_memory: JJ<"max-memory=">,
HelpText<"Maximum size of the linear memory">;
def no_growable_memory: FF<"no-growable-memory">,
HelpText<"Set maximum size of the linear memory to its initial size">;
def no_entry: FF<"no-entry">,
HelpText<"Do not output any entry point">;
def no_shlib_sigcheck: FF<"no-shlib-sigcheck">,
HelpText<"Do not check signatures of functions defined in shared libraries.">;
def stack_first: FF<"stack-first">,
HelpText<"Place stack at start of linear memory rather than after data">;
def table_base: JJ<"table-base=">,
HelpText<"Table offset at which to place address taken functions (Defaults to 1)">;
defm whole_archive: B<"whole-archive",
"Force load of all members in a static library",
"Do not force load of all members in a static library (default)">;
def why_extract: JJ<"why-extract=">, HelpText<"Print to a file about why archive members are extracted">;
defm check_features: BB<"check-features",
"Check feature compatibility of linked objects (default)",
"Ignore feature compatibility of linked objects">;
def features: CommaJoined<["--", "-"], "features=">,
HelpText<"Comma-separated used features, inferred from input objects by default.">;
def extra_features: CommaJoined<["--", "-"], "extra-features=">,
HelpText<"Comma-separated list of features to add to the default set of features inferred from input objects.">;
// Aliases
def: JoinedOrSeparate<["-"], "e">, Alias<entry>;
def: J<"entry=">, Alias<entry>;
def: F<"call_shared">, Alias<Bdynamic>, HelpText<"Alias for --Bdynamic">;
def: F<"dy">, Alias<Bdynamic>, HelpText<"Alias for --Bdynamic">;
def: F<"dn">, Alias<Bstatic>, HelpText<"Alias for --Bstatic">;
def: F<"non_shared">, Alias<Bstatic>, HelpText<"Alias for --Bstatic">;
def: F<"static">, Alias<Bstatic>, HelpText<"Alias for --Bstatic">;
def: Flag<["-"], "E">, Alias<export_dynamic>, HelpText<"Alias for --export-dynamic">;
def: Flag<["-"], "i">, Alias<initial_memory>;
def: Separate<["--", "-"], "library">, Alias<library>;
def: Joined<["--", "-"], "library=">, Alias<library>;
def: Separate<["--", "-"], "library-path">, Alias<library_path>;
def: Joined<["--", "-"], "library-path=">, Alias<library_path>;
def: Flag<["-"], "M">, Alias<print_map>, HelpText<"Alias for --print-map">;
def: Flag<["-"], "r">, Alias<relocatable>;
def: Flag<["-"], "s">, Alias<strip_all>, HelpText<"Alias for --strip-all">;
def: Flag<["-"], "S">, Alias<strip_debug>, HelpText<"Alias for --strip-debug">;
def: Flag<["-"], "t">, Alias<trace>, HelpText<"Alias for --trace">;
def: JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>, HelpText<"Alias for --trace-symbol">;
def: JoinedOrSeparate<["-"], "u">, Alias<undefined>;
// LTO-related options.
def lto_O: JJ<"lto-O">, MetaVarName<"<opt-level>">,
HelpText<"Optimization level for LTO">;
def lto_CGO: JJ<"lto-CGO">, MetaVarName<"<cgopt-level>">,
HelpText<"Codegen optimization level for LTO">;
def lto_partitions: JJ<"lto-partitions=">,
HelpText<"Number of LTO codegen partitions">;
def disable_verify: F<"disable-verify">;
def save_temps: F<"save-temps">, HelpText<"Save intermediate LTO compilation results">;
def thinlto_cache_dir: JJ<"thinlto-cache-dir=">,
HelpText<"Path to ThinLTO cached object file directory">;
defm thinlto_cache_policy: EEq<"thinlto-cache-policy", "Pruning policy for the ThinLTO cache">;
def thinlto_jobs: JJ<"thinlto-jobs=">,
HelpText<"Number of ThinLTO jobs. Default to --threads=">;
def lto_debug_pass_manager: FF<"lto-debug-pass-manager">,
HelpText<"Debug new pass manager">;
// Experimental PIC mode.
def experimental_pic: FF<"experimental-pic">,
HelpText<"Enable Experimental PIC">;
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