1 include "llvm/Option/OptParser.td"
3 // For options whose names are multiple letters, either one dash or
4 // two can precede the option name except those that start with 'o'.
5 class F<string name>: Flag<["--", "-"], name>;
6 class J<string name>: Joined<["--", "-"], name>;
8 multiclass Eq<string name, string help> {
9 def NAME: Separate<["--", "-"], name>;
10 def NAME # _eq: Joined<["--", "-"], name # "=">, Alias<!cast<Separate>(NAME)>,
14 multiclass B<string name, string help1, string help2> {
15 def NAME: Flag<["--", "-"], name>, HelpText<help1>;
16 def no_ # NAME: Flag<["--", "-"], "no-" # name>, HelpText<help2>;
19 defm auxiliary: Eq<"auxiliary", "Set DT_AUXILIARY field to the specified name">;
21 def Bsymbolic: F<"Bsymbolic">, HelpText<"Bind defined symbols locally">;
23 def Bsymbolic_functions: F<"Bsymbolic-functions">,
24 HelpText<"Bind defined function symbols locally">;
26 def Bdynamic: F<"Bdynamic">, HelpText<"Link against shared libraries (default)">;
28 def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries">;
30 def build_id: F<"build-id">, HelpText<"Alias for --build-id=fast">;
32 def build_id_eq: J<"build-id=">, HelpText<"Generate build ID note">,
33 MetaVarName<"[fast,md5,sha,uuid,0x<hexstring>]">;
35 defm check_sections: B<"check-sections",
36 "Check section addresses for overlaps (default)",
37 "Do not check section addresses for overlaps">;
39 defm compress_debug_sections:
40 Eq<"compress-debug-sections", "Compress DWARF debug sections">,
41 MetaVarName<"[none,zlib]">;
43 defm defsym: Eq<"defsym", "Define a symbol alias">, MetaVarName<"<symbol>=<value>">;
46 Eq<"library-path", "Add a directory to the library search path">, MetaVarName<"<dir>">;
48 def O: JoinedOrSeparate<["-"], "O">, HelpText<"Optimize output file size">;
50 defm Tbss: Eq<"Tbss", "Same as --section-start with .bss as the sectionname">;
52 defm Tdata: Eq<"Tdata", "Same as --section-start with .data as the sectionname">;
54 defm Ttext: Eq<"Ttext", "Same as --section-start with .text as the sectionname">;
56 defm allow_multiple_definition: B<"allow-multiple-definition",
57 "Allow multiple definitions",
58 "Do not allow multiple definitions (default)">;
60 defm apply_dynamic_relocs: B<"apply-dynamic-relocs",
61 "Apply link-time values for dynamic relocations",
62 "Do not apply link-time values for dynamic relocations (default)">;
64 defm as_needed: B<"as-needed",
65 "Only set DT_NEEDED for shared libraries if used",
66 "Always set DT_NEEDED for shared libraries (default)">;
68 defm call_graph_ordering_file:
69 Eq<"call-graph-ordering-file", "Layout sections to optimize the given callgraph">;
71 // -chroot doesn't have a help text because it is an internal option.
72 def chroot: Separate<["--", "-"], "chroot">;
74 def color_diagnostics: F<"color-diagnostics">,
75 HelpText<"Alias for --color-diagnostics=always">;
77 def color_diagnostics_eq: J<"color-diagnostics=">,
78 HelpText<"Use colors in diagnostics">,
79 MetaVarName<"[auto,always,never]">;
82 "Output cross reference table",
83 "Do not output cross reference table">;
85 defm define_common: B<"define-common",
86 "Assign space to common symbols",
87 "Do not assign space to common symbols">;
89 defm demangle: B<"demangle",
90 "Demangle symbol names (default)",
91 "Do not demangle symbol names">;
93 def disable_new_dtags: F<"disable-new-dtags">,
94 HelpText<"Disable new dynamic tags">;
96 def discard_all: F<"discard-all">, HelpText<"Delete all local symbols">;
98 def discard_locals: F<"discard-locals">,
99 HelpText<"Delete temporary local symbols">;
101 def discard_none: F<"discard-none">,
102 HelpText<"Keep all symbols in the symbol table">;
104 defm dynamic_linker: Eq<"dynamic-linker", "Which dynamic linker to use">;
106 defm dynamic_list: Eq<"dynamic-list", "Read a list of dynamic symbols">;
108 defm eh_frame_hdr: B<"eh-frame-hdr",
109 "Request creation of .eh_frame_hdr section and PT_GNU_EH_FRAME segment header",
110 "Do not create .eh_frame_hdr section">;
112 def emit_relocs: F<"emit-relocs">, HelpText<"Generate relocations in output">;
114 def enable_new_dtags: F<"enable-new-dtags">,
115 HelpText<"Enable new dynamic tags (default)">;
117 def end_group: F<"end-group">,
118 HelpText<"Ignored for compatibility with GNU unless you pass --warn-backrefs">;
120 def end_lib: F<"end-lib">,
121 HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;
123 defm entry: Eq<"entry", "Name of entry point symbol">,
124 MetaVarName<"<entry>">;
127 Eq<"error-limit", "Maximum number of errors to emit before stopping (0 = no limit)">;
129 def error_unresolved_symbols: F<"error-unresolved-symbols">,
130 HelpText<"Report unresolved symbols as errors">;
132 defm exclude_libs: Eq<"exclude-libs", "Exclude static libraries from automatic export">;
134 defm execute_only: B<"execute-only",
135 "Do not mark executable sections readable",
136 "Mark executable sections readable (default)">;
138 defm export_dynamic: B<"export-dynamic",
139 "Put symbols in the dynamic symbol table",
140 "Do not put symbols in the dynamic symbol table (default)">;
142 defm export_dynamic_symbol:
143 Eq<"export-dynamic-symbol", "Put a symbol in the dynamic symbol table">;
145 defm fatal_warnings: B<"fatal-warnings",
146 "Treat warnings as errors",
147 "Do not treat warnings as errors (default)">;
149 defm filter: Eq<"filter", "Set DT_FILTER field to the specified name">;
151 defm fini: Eq<"fini", "Specify a finalizer function">, MetaVarName<"<symbol>">;
153 def fix_cortex_a53_843419: F<"fix-cortex-a53-843419">,
154 HelpText<"Apply fixes for AArch64 Cortex-A53 erratum 843419">;
156 defm format: Eq<"format", "Change the input format of the inputs following this option">,
157 MetaVarName<"[default,elf,binary]">;
159 defm gc_sections: B<"gc-sections",
160 "Enable garbage collection of unused sections",
161 "Disable garbage collection of unused sections (default)">;
163 defm gdb_index: B<"gdb-index",
164 "Generate .gdb_index section",
165 "Do not generate .gdb_index section (default)">;
167 defm gnu_unique: B<"gnu-unique",
168 "Enable STB_GNU_UNIQUE symbol binding (default)",
169 "Disable STB_GNU_UNIQUE symbol binding">;
171 defm hash_style: Eq<"hash-style", "Specify hash style (sysv, gnu or both)">;
173 def help: F<"help">, HelpText<"Print option help">;
175 def icf_all: F<"icf=all">, HelpText<"Enable identical code folding">;
177 def icf_safe: F<"icf=safe">, HelpText<"Enable safe identical code folding">;
179 def icf_none: F<"icf=none">, HelpText<"Disable identical code folding (default)">;
181 def ignore_function_address_equality: F<"ignore-function-address-equality">,
182 HelpText<"lld can break the address equality of functions">;
184 def ignore_data_address_equality: F<"ignore-data-address-equality">,
185 HelpText<"lld can break the address equality of data">;
187 defm image_base: Eq<"image-base", "Set the base address">;
189 defm init: Eq<"init", "Specify an initializer function">,
190 MetaVarName<"<symbol>">;
192 defm just_symbols: Eq<"just-symbols", "Just link symbols">;
194 defm keep_unique: Eq<"keep-unique", "Do not fold this symbol during ICF">;
196 defm library: Eq<"library", "Root name of library to use">,
197 MetaVarName<"<libName>">;
199 def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
201 defm Map: Eq<"Map", "Print a link map to the specified file">;
203 defm merge_exidx_entries: B<"merge-exidx-entries",
204 "Enable merging .ARM.exidx entries (default)",
205 "Disable merging .ARM.exidx entries">;
207 def nostdlib: F<"nostdlib">,
208 HelpText<"Only search directories specified on the command line">;
210 def no_color_diagnostics: F<"no-color-diagnostics">,
211 HelpText<"Do not use colors in diagnostics">;
213 def no_dynamic_linker: F<"no-dynamic-linker">,
214 HelpText<"Inhibit output of .interp section">;
216 def noinhibit_exec: F<"noinhibit-exec">,
217 HelpText<"Retain the executable output file whenever it is still usable">;
219 def no_omagic: F<"no-omagic">, MetaVarName<"<magic>">,
220 HelpText<"Do not set the text data sections to be writable">;
222 def no_rosegment: F<"no-rosegment">,
223 HelpText<"Do not put read-only non-executable sections in their own segment">;
225 def no_undefined: F<"no-undefined">,
226 HelpText<"Report unresolved symbols even if the linker is creating a shared library">;
228 def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
229 HelpText<"Path to file to write output">;
231 def oformat: Separate<["--"], "oformat">, MetaVarName<"<format>">,
232 HelpText<"Specify the binary format for the output object file">;
234 def omagic: Flag<["--"], "omagic">, MetaVarName<"<magic>">,
235 HelpText<"Set the text and data sections to be readable and writable">;
237 defm orphan_handling:
238 Eq<"orphan-handling", "Control how orphan sections are handled when linker script used">;
240 defm pack_dyn_relocs:
241 Eq<"pack-dyn-relocs", "Pack dynamic relocations in the given format">,
242 MetaVarName<"[none,android,relr,android+relr]">;
244 defm use_android_relr_tags: B<"use-android-relr-tags",
245 "Use SHT_ANDROID_RELR / DT_ANDROID_RELR* tags instead of SHT_RELR / DT_RELR*",
246 "Use SHT_RELR / DT_RELR* tags (default)">;
249 "Create a position independent executable",
250 "Do not create a position independent executable (default)">;
252 defm print_gc_sections: B<"print-gc-sections",
253 "List removed unused sections",
254 "Do not list removed unused sections (default)">;
256 defm print_icf_sections: B<"print-icf-sections",
257 "List identical folded sections",
258 "Do not list identical folded sections (default)">;
260 def pop_state: F<"pop-state">,
261 HelpText<"Undo the effect of -push-state">;
263 def push_state: F<"push-state">,
264 HelpText<"Save the current state of -as-needed, -static and -whole-archive">;
266 def print_map: F<"print-map">,
267 HelpText<"Print a link map to the standard output">;
269 defm reproduce: Eq<"reproduce", "Dump linker invocation and input files for debugging">;
271 defm rpath: Eq<"rpath", "Add a DT_RUNPATH to the output">;
273 def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
275 defm retain_symbols_file:
276 Eq<"retain-symbols-file", "Retain only the symbols listed in the file">,
277 MetaVarName<"<file>">;
279 defm script: Eq<"script", "Read linker script">;
281 defm section_start: Eq<"section-start", "Set address of section">,
282 MetaVarName<"<address>">;
284 def shared: F<"shared">, HelpText<"Build a shared object">;
286 defm soname: Eq<"soname", "Set DT_SONAME">;
289 Eq<"sort-section", "Specifies sections sorting rule when linkerscript is used">;
291 def start_group: F<"start-group">,
292 HelpText<"Ignored for compatibility with GNU unless you pass --warn-backrefs">;
294 def start_lib: F<"start-lib">,
295 HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;
297 def strip_all: F<"strip-all">, HelpText<"Strip all symbols">;
299 def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
301 defm symbol_ordering_file:
302 Eq<"symbol-ordering-file", "Layout sections to place symbols in the order specified by symbol ordering file">;
304 defm sysroot: Eq<"sysroot", "Set the system root">;
306 def target1_rel: F<"target1-rel">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_REL32">;
308 def target1_abs: F<"target1-abs">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_ABS32 (default)">;
311 Eq<"target2", "Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel">,
312 MetaVarName<"<type>">;
314 defm threads: B<"threads",
315 "Run the linker multi-threaded (default)",
316 "Do not run the linker multi-threaded">;
318 def trace: F<"trace">, HelpText<"Print the names of the input files">;
320 defm trace_symbol: Eq<"trace-symbol", "Trace references to symbols">;
322 defm undefined: Eq<"undefined", "Force undefined symbol during linking">,
323 MetaVarName<"<symbol>">;
325 defm unresolved_symbols:
326 Eq<"unresolved-symbols", "Determine how to handle unresolved symbols">;
328 defm undefined_version: B<"undefined-version",
329 "Allow unused version in version script (default)",
330 "Report version scripts that refer undefined symbols">;
332 defm rsp_quoting: Eq<"rsp-quoting", "Quoting style for response files">,
333 MetaVarName<"[posix,windows]">;
335 def v: Flag<["-"], "v">, HelpText<"Display the version number">;
337 def verbose: F<"verbose">, HelpText<"Verbose mode">;
339 def version: F<"version">, HelpText<"Display the version number and exit">;
341 defm version_script: Eq<"version-script", "Read a version script">;
343 defm warn_backrefs: B<"warn-backrefs",
344 "Warn about backward symbol references to fetch archive members",
345 "Do not warn about backward symbol references to fetch archive members (default)">;
347 defm warn_common: B<"warn-common",
348 "Warn about duplicate common symbols",
349 "Do not warn about duplicate common symbols (default)">;
351 defm warn_symbol_ordering: B<"warn-symbol-ordering",
352 "Warn about problems with the symbol ordering file (default)",
353 "Do not warn about problems with the symbol ordering file">;
355 def warn_unresolved_symbols: F<"warn-unresolved-symbols">,
356 HelpText<"Report unresolved symbols as warnings">;
358 defm whole_archive: B<"whole-archive",
359 "Force load of all members in a static library",
360 "Do not force load of all members in a static library (default)">;
362 defm wrap: Eq<"wrap", "Use wrapper functions for symbol">,
363 MetaVarName<"<symbol>=<symbol>">;
365 def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
366 HelpText<"Linker option extensions">;
369 def: Separate<["-"], "f">, Alias<auxiliary>, HelpText<"Alias for --auxiliary">;
370 def: F<"call_shared">, Alias<Bdynamic>, HelpText<"Alias for --Bdynamic">;
371 def: F<"dy">, Alias<Bdynamic>, HelpText<"Alias for --Bdynamic">;
372 def: F<"dn">, Alias<Bstatic>, HelpText<"Alias for --Bstatic">;
373 def: F<"non_shared">, Alias<Bstatic>, HelpText<"Alias for --Bstatic">;
374 def: F<"static">, Alias<Bstatic>, HelpText<"Alias for --Bstatic">;
375 def: Flag<["-"], "d">, Alias<define_common>, HelpText<"Alias for --define-common">;
376 def: F<"dc">, Alias<define_common>, HelpText<"Alias for --define-common">;
377 def: F<"dp">, Alias<define_common>, HelpText<"Alias for --define-common">;
378 def: Flag<["-"], "x">, Alias<discard_all>, HelpText<"Alias for --discard-all">;
379 def: Flag<["-"], "X">, Alias<discard_locals>, HelpText<"Alias for --discard-locals">;
380 def: Flag<["-"], "q">, Alias<emit_relocs>, HelpText<"Alias for --emit-relocs">;
381 def: Flag<["-"], ")">, Alias<end_group>, HelpText<"Alias for --end-group">;
382 def: JoinedOrSeparate<["-"], "e">, Alias<entry>, HelpText<"Alias for --entry">;
383 def: Flag<["-"], "E">, Alias<export_dynamic>, HelpText<"Alias for --export-dynamic">;
384 def: Separate<["-"], "F">, Alias<filter>, HelpText<"Alias for --filter">;
385 def: Separate<["-"], "b">, Alias<format>, HelpText<"Alias for --format">;
386 def: JoinedOrSeparate<["-"], "l">, Alias<library>, HelpText<"Alias for --library">;
387 def: JoinedOrSeparate<["-"], "L">, Alias<library_path>, HelpText<"Alias for --library-path">;
388 def: F<"no-pic-executable">, Alias<no_pie>, HelpText<"Alias for --no-pie">;
389 def: Flag<["-"], "N">, Alias<omagic>, HelpText<"Alias for --omagic">;
390 def: Joined<["--"], "output=">, Alias<o>, HelpText<"Alias for -o">;
391 def: Separate<["--"], "output">, Alias<o>, HelpText<"Alias for -o">;
392 def: F<"pic-executable">, Alias<pie>, HelpText<"Alias for --pie">;
393 def: Flag<["-"], "M">, Alias<print_map>, HelpText<"Alias for --print-map">;
394 def: Flag<["-"], "r">, Alias<relocatable>, HelpText<"Alias for --relocatable">;
395 def: JoinedOrSeparate<["-"], "R">, Alias<rpath>, HelpText<"Alias for --rpath">;
396 def: JoinedOrSeparate<["-"], "T">, Alias<script>, HelpText<"Alias for --script">;
397 def: F<"Bshareable">, Alias<shared>, HelpText<"Alias for --shared">;
398 def: JoinedOrSeparate<["-"], "h">, Alias<soname>, HelpText<"Alias for --soname">;
399 def: Flag<["-"], "(">, Alias<start_group>, HelpText<"Alias for --start-group">;
400 def: Flag<["-"], "s">, Alias<strip_all>, HelpText<"Alias for --strip-all">;
401 def: Flag<["-"], "S">, Alias<strip_debug>, HelpText<"Alias for --strip-debug">;
402 def: Flag<["-"], "t">, Alias<trace>, HelpText<"Alias for --trace">;
403 def: JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>, HelpText<"Alias for --trace-symbol">;
404 def: Separate<["-", "--"], "Ttext-segment">, Alias<Ttext>, HelpText<"Alias for --Ttext">;
405 def: Joined<["-", "--"], "Ttext-segment=">, Alias<Ttext>, HelpText<"Alias for --Ttext">;
406 def: JoinedOrSeparate<["-"], "u">, Alias<undefined>, HelpText<"Alias for --undefined">;
407 def: Flag<["-"], "V">, Alias<version>, HelpText<"Alias for --version">;
409 // LTO-related options.
410 def lto_aa_pipeline: J<"lto-aa-pipeline=">,
411 HelpText<"AA pipeline to run during LTO. Used in conjunction with -lto-newpm-passes">;
412 def lto_debug_pass_manager: F<"lto-debug-pass-manager">,
413 HelpText<"Debug new pass manager">;
414 def lto_new_pass_manager: F<"lto-new-pass-manager">,
415 HelpText<"Use new pass manager">;
416 def lto_newpm_passes: J<"lto-newpm-passes=">,
417 HelpText<"Passes to run during LTO">;
418 def lto_O: J<"lto-O">, MetaVarName<"<opt-level>">,
419 HelpText<"Optimization level for LTO">;
420 def lto_partitions: J<"lto-partitions=">,
421 HelpText<"Number of LTO codegen partitions">;
422 def lto_sample_profile: J<"lto-sample-profile=">,
423 HelpText<"Sample profile file path">;
424 def disable_verify: F<"disable-verify">;
425 defm mllvm: Eq<"mllvm", "Additional arguments to forward to LLVM's option processing">;
426 def opt_remarks_filename: Separate<["--"], "opt-remarks-filename">,
427 HelpText<"YAML output file for optimization remarks">;
428 def opt_remarks_with_hotness: Flag<["--"], "opt-remarks-with-hotness">,
429 HelpText<"Include hotness information in the optimization remarks file">;
430 defm plugin_opt: Eq<"plugin-opt", "specifies LTO options for compatibility with GNU linkers">;
431 def save_temps: F<"save-temps">;
432 def thinlto_cache_dir: J<"thinlto-cache-dir=">,
433 HelpText<"Path to ThinLTO cached object file directory">;
434 defm thinlto_cache_policy: Eq<"thinlto-cache-policy", "Pruning policy for the ThinLTO cache">;
435 def thinlto_jobs: J<"thinlto-jobs=">, HelpText<"Number of ThinLTO jobs">;
437 def: J<"plugin-opt=O">, Alias<lto_O>, HelpText<"Alias for -lto-O">;
438 def: F<"plugin-opt=debug-pass-manager">,
439 Alias<lto_debug_pass_manager>, HelpText<"Alias for -lto-debug-pass-manager">;
440 def: F<"plugin-opt=disable-verify">, Alias<disable_verify>, HelpText<"Alias for -disable-verify">;
441 def plugin_opt_dwo_dir_eq: J<"plugin-opt=dwo_dir=">,
442 HelpText<"Directory to store .dwo files when LTO and debug fission are used">;
443 def: J<"plugin-opt=jobs=">, Alias<thinlto_jobs>, HelpText<"Alias for -thinlto-jobs">;
444 def: J<"plugin-opt=lto-partitions=">, Alias<lto_partitions>, HelpText<"Alias for -lto-partitions">;
445 def plugin_opt_mcpu_eq: J<"plugin-opt=mcpu=">;
446 def: F<"plugin-opt=new-pass-manager">,
447 Alias<lto_new_pass_manager>, HelpText<"Alias for -lto-new-pass-manager">;
448 def plugin_opt_obj_path_eq: J<"plugin-opt=obj-path=">;
449 def: J<"plugin-opt=sample-profile=">,
450 Alias<lto_sample_profile>, HelpText<"Alias for -lto-sample-profile">;
451 def: F<"plugin-opt=save-temps">, Alias<save_temps>, HelpText<"Alias for -save-temps">;
452 def plugin_opt_thinlto_emit_imports_files: F<"plugin-opt=thinlto-emit-imports-files">;
453 def plugin_opt_thinlto_index_only: F<"plugin-opt=thinlto-index-only">;
454 def plugin_opt_thinlto_index_only_eq: J<"plugin-opt=thinlto-index-only=">;
455 def plugin_opt_thinlto_object_suffix_replace_eq: J<"plugin-opt=thinlto-object-suffix-replace=">;
456 def plugin_opt_thinlto_prefix_replace_eq: J<"plugin-opt=thinlto-prefix-replace=">;
458 // Ignore LTO plugin-related options.
459 // clang -flto passes -plugin and -plugin-opt to the linker. This is required
460 // for ld.gold and ld.bfd to get LTO working. But it's not for lld which doesn't
461 // rely on a plugin. Instead of detecting which linker is used on clang side we
462 // just ignore the option on lld side as it's easier. In fact, the linker could
463 // be called 'ld' and understanding which linker is used would require parsing of
465 defm plugin: Eq<"plugin", "Ignored for compatibility with GNU linkers">;
467 def plugin_opt_fresolution_eq: J<"plugin-opt=-fresolution=">;
468 def plugin_opt_pass_through_eq: J<"plugin-opt=-pass-through=">;
469 def plugin_opt_thinlto: J<"plugin-opt=thinlto">;
470 def plugin_opt_slash: J<"plugin-opt=/">;
472 // Options listed below are silently ignored for now for compatibility.
473 def: F<"allow-shlib-undefined">;
474 def: F<"detect-odr-violations">;
475 def: Flag<["-"], "g">;
477 def: F<"no-add-needed">;
478 def: F<"no-allow-shlib-undefined">;
479 def: F<"no-copy-dt-needed-entries">;
480 def: F<"no-ctors-in-init-array">;
481 def: F<"no-keep-memory">;
482 def: F<"no-mmap-output-file">;
483 def: F<"no-warn-mismatch">;
484 def: Separate<["--", "-"], "rpath-link">;
485 def: J<"rpath-link=">;
486 def: F<"sort-common">;
488 def: F<"warn-execstack">;
490 def: F<"warn-shared-textrel">;
493 def: JoinedOrSeparate<["-"], "G">;
496 // Hidden option used for testing MIPS multi-GOT implementation.
498 Eq<"mips-got-size", "Max size of a single MIPS GOT. 0x10000 by default.">,