contrib/llvm/tools/lld/ELF/Options.td

   1 include "llvm/Option/OptParser.td"
   2
   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>;
   7 class S<string name>: Separate<["--", "-"], name>;
   8 class JS<string name>: JoinedOrSeparate<["--", "-"], name>;
   9
  10 def auxiliary: S<"auxiliary">, HelpText<"Set DT_AUXILIARY field to the specified name">;
  11
  12 def Bsymbolic: F<"Bsymbolic">, HelpText<"Bind defined symbols locally">;
  13
  14 def Bsymbolic_functions: F<"Bsymbolic-functions">,
  15   HelpText<"Bind defined function symbols locally">;
  16
  17 def Bdynamic: F<"Bdynamic">, HelpText<"Link against shared libraries">;
  18
  19 def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries">;
  20
  21 def build_id: F<"build-id">, HelpText<"Generate build ID note">;
  22
  23 def build_id_eq: J<"build-id=">, HelpText<"Generate build ID note">;
  24
  25 def L: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
  26   HelpText<"Add a directory to the library search path">;
  27
  28 def O: Joined<["-"], "O">, HelpText<"Optimize output file size">;
  29
  30 def Tbss: S<"Tbss">, HelpText<"Same as --section-start with .bss as the sectionname">;
  31
  32 def Tdata: S<"Tdata">, HelpText<"Same as --section-start with .data as the sectionname">;
  33
  34 def Ttext: S<"Ttext">, HelpText<"Same as --section-start with .text as the sectionname">;
  35
  36 def allow_multiple_definition: F<"allow-multiple-definition">,
  37   HelpText<"Allow multiple definitions">;
  38
  39 def as_needed: F<"as-needed">,
  40   HelpText<"Only set DT_NEEDED for shared libraries if used">;
  41
  42 def color_diagnostics: F<"color-diagnostics">,
  43   HelpText<"Use colors in diagnostics">;
  44
  45 def color_diagnostics_eq: J<"color-diagnostics=">,
  46   HelpText<"Use colors in diagnostics">;
  47
  48 def disable_new_dtags: F<"disable-new-dtags">,
  49   HelpText<"Disable new dynamic tags">;
  50
  51 def discard_all: F<"discard-all">, HelpText<"Delete all local symbols">;
  52
  53 def discard_locals: F<"discard-locals">,
  54   HelpText<"Delete temporary local symbols">;
  55
  56 def discard_none: F<"discard-none">,
  57   HelpText<"Keep all symbols in the symbol table">;
  58
  59 def dynamic_linker: S<"dynamic-linker">,
  60   HelpText<"Which dynamic linker to use">;
  61
  62 def dynamic_list: S<"dynamic-list">,
  63   HelpText<"Read a list of dynamic symbols">;
  64
  65 def eh_frame_hdr: F<"eh-frame-hdr">,
  66   HelpText<"Request creation of .eh_frame_hdr section and PT_GNU_EH_FRAME segment header">;
  67
  68 def enable_new_dtags: F<"enable-new-dtags">,
  69   HelpText<"Enable new dynamic tags">;
  70
  71 def end_lib: F<"end-lib">,
  72   HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;
  73
  74 def entry: S<"entry">, MetaVarName<"<entry>">,
  75   HelpText<"Name of entry point symbol">;
  76
  77 def error_limit: S<"error-limit">,
  78   HelpText<"Maximum number of errors to emit before stopping (0 = no limit)">;
  79
  80 def export_dynamic: F<"export-dynamic">,
  81   HelpText<"Put symbols in the dynamic symbol table">;
  82
  83 def export_dynamic_symbol: S<"export-dynamic-symbol">,
  84   HelpText<"Put a symbol in the dynamic symbol table">;
  85
  86 def fatal_warnings: F<"fatal-warnings">,
  87   HelpText<"Treat warnings as errors">;
  88
  89 def fini: S<"fini">, MetaVarName<"<symbol>">,
  90   HelpText<"Specify a finalizer function">;
  91
  92 def full_shutdown : F<"full-shutdown">,
  93   HelpText<"Perform a full shutdown instead of calling _exit">;
  94
  95 def format: J<"format=">, MetaVarName<"<input-format>">,
  96   HelpText<"Change the input format of the inputs following this option">;
  97
  98 def gc_sections: F<"gc-sections">,
  99   HelpText<"Enable garbage collection of unused sections">;
 100
 101 def gdb_index: F<"gdb-index">,
 102   HelpText<"Generate .gdb_index section">;
 103
 104 def hash_style: S<"hash-style">,
 105   HelpText<"Specify hash style (sysv, gnu or both)">;
 106
 107 def help: F<"help">, HelpText<"Print option help">;
 108
 109 def icf: F<"icf=all">, HelpText<"Enable identical code folding">;
 110
 111 def image_base : J<"image-base=">, HelpText<"Set the base address">;
 112
 113 def init: S<"init">, MetaVarName<"<symbol>">,
 114   HelpText<"Specify an initializer function">;
 115
 116 def l: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,
 117   HelpText<"Root name of library to use">;
 118
 119 def lto_O: J<"lto-O">, MetaVarName<"<opt-level>">,
 120   HelpText<"Optimization level for LTO">;
 121
 122 def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
 123
 124 def nostdlib: F<"nostdlib">,
 125   HelpText<"Only search directories specified on the command line">;
 126
 127 def no_as_needed: F<"no-as-needed">,
 128   HelpText<"Always DT_NEEDED for shared libraries">;
 129
 130 def no_color_diagnostics: F<"no-color-diagnostics">,
 131   HelpText<"Do not use colors in diagnostics">;
 132
 133 def no_demangle: F<"no-demangle">,
 134   HelpText<"Do not demangle symbol names">;
 135
 136 def no_gc_sections: F<"no-gc-sections">,
 137   HelpText<"Disable garbage collection of unused sections">;
 138
 139 def no_gnu_unique: F<"no-gnu-unique">,
 140   HelpText<"Disable STB_GNU_UNIQUE symbol binding">;
 141
 142 def no_threads: F<"no-threads">,
 143   HelpText<"Do not run the linker multi-threaded">;
 144
 145 def no_whole_archive: F<"no-whole-archive">,
 146   HelpText<"Restores the default behavior of loading archive members">;
 147
 148 def noinhibit_exec: F<"noinhibit-exec">,
 149   HelpText<"Retain the executable output file whenever it is still usable">;
 150
 151 def nopie: F<"nopie">, HelpText<"Do not create a position independent executable">;
 152
 153 def no_rosegment: F<"no-rosegment">, HelpText<"Do not put read-only non-executable sections in their own segment">;
 154
 155 def no_undefined: F<"no-undefined">,
 156   HelpText<"Report unresolved symbols even if the linker is creating a shared library">;
 157
 158 def no_undefined_version: F<"no-undefined-version">,
 159   HelpText<"Report version scripts that refer undefined symbols">;
 160
 161 def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
 162   HelpText<"Path to file to write output">;
 163
 164 def oformat: Separate<["--"], "oformat">, MetaVarName<"<format>">,
 165   HelpText<"Specify the binary format for the output object file">;
 166
 167 def omagic: F<"omagic">, MetaVarName<"<magic>">,
 168   HelpText<"Set the text and data sections to be readable and writable">;
 169
 170 def pie: F<"pie">, HelpText<"Create a position independent executable">;
 171
 172 def print_gc_sections: F<"print-gc-sections">,
 173   HelpText<"List removed unused sections">;
 174
 175 def reproduce: S<"reproduce">,
 176   HelpText<"Dump linker invocation and input files for debugging">;
 177
 178 def rpath: S<"rpath">, HelpText<"Add a DT_RUNPATH to the output">;
 179
 180 def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
 181
 182 def retain_symbols_file: J<"retain-symbols-file=">, MetaVarName<"<file>">,
 183   HelpText<"Retain only the symbols listed in the file">;
 184
 185 def script: S<"script">, HelpText<"Read linker script">;
 186
 187 def section_start: S<"section-start">, MetaVarName<"<address>">,
 188   HelpText<"Set address of section">;
 189
 190 def shared: F<"shared">, HelpText<"Build a shared object">;
 191
 192 def soname: J<"soname=">, HelpText<"Set DT_SONAME">;
 193
 194 def sort_section: S<"sort-section">, HelpText<"Specifies sections sorting rule when linkerscript is used">;
 195
 196 def start_lib: F<"start-lib">,
 197   HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;
 198
 199 def strip_all: F<"strip-all">, HelpText<"Strip all symbols">;
 200
 201 def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
 202
 203 def symbol_ordering_file: S<"symbol-ordering-file">,
 204   HelpText<"Layout sections in the order specified by symbol file">;
 205
 206 def sysroot: J<"sysroot=">, HelpText<"Set the system root">;
 207
 208 def target1_rel: F<"target1-rel">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_REL32">;
 209
 210 def target1_abs: F<"target1-abs">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_ABS32">;
 211
 212 def target2: J<"target2=">, MetaVarName<"<type>">, HelpText<"Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel">;
 213
 214 def threads: F<"threads">, HelpText<"Run the linker multi-threaded">;
 215
 216 def trace: F<"trace">, HelpText<"Print the names of the input files">;
 217
 218 def trace_symbol : J<"trace-symbol=">, HelpText<"Trace references to symbols">;
 219
 220 def undefined: S<"undefined">,
 221   HelpText<"Force undefined symbol during linking">;
 222
 223 def unresolved_symbols: J<"unresolved-symbols=">,
 224   HelpText<"Determine how to handle unresolved symbols">;
 225
 226 def rsp_quoting: J<"rsp-quoting=">,
 227   HelpText<"Quoting style for response files. Values supported: windows|posix">;
 228
 229 def v: Flag<["-"], "v">, HelpText<"Display the version number">;
 230
 231 def verbose: F<"verbose">, HelpText<"Verbose mode">;
 232
 233 def version: F<"version">, HelpText<"Display the version number and exit">;
 234
 235 def version_script: S<"version-script">,
 236   HelpText<"Read a version script">;
 237
 238 def warn_common: F<"warn-common">,
 239   HelpText<"Warn about duplicate common symbols">;
 240
 241 def whole_archive: F<"whole-archive">,
 242   HelpText<"Force load of all members in a static library">;
 243
 244 def wrap: S<"wrap">, MetaVarName<"<symbol>">,
 245   HelpText<"Use wrapper functions for symbol">;
 246
 247 def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
 248   HelpText<"Linker option extensions">;
 249
 250 // Aliases
 251 def alias_auxiliary: Separate<["-"], "f">, Alias<auxiliary>;
 252 def alias_Bdynamic_call_shared: F<"call_shared">, Alias<Bdynamic>;
 253 def alias_Bdynamic_dy: F<"dy">, Alias<Bdynamic>;
 254 def alias_Bstatic_dn: F<"dn">, Alias<Bstatic>;
 255 def alias_Bstatic_non_shared: F<"non_shared">, Alias<Bstatic>;
 256 def alias_Bstatic_static: F<"static">, Alias<Bstatic>;
 257 def alias_L__library_path: J<"library-path=">, Alias<L>;
 258 def alias_discard_all_x: Flag<["-"], "x">, Alias<discard_all>;
 259 def alias_discard_locals_X: Flag<["-"], "X">, Alias<discard_locals>;
 260 def alias_dynamic_list: J<"dynamic-list=">, Alias<dynamic_list>;
 261 def alias_entry_e: JoinedOrSeparate<["-"], "e">, Alias<entry>;
 262 def alias_entry_entry: J<"entry=">, Alias<entry>;
 263 def alias_error_limit: J<"error-limit=">, Alias<error_limit>;
 264 def alias_export_dynamic_E: Flag<["-"], "E">, Alias<export_dynamic>;
 265 def alias_export_dynamic_symbol: J<"export-dynamic-symbol=">,
 266   Alias<export_dynamic_symbol>;
 267 def alias_fini_fini: J<"fini=">, Alias<fini>;
 268 def alias_format_b: S<"b">, Alias<format>;
 269 def alias_hash_style_hash_style: J<"hash-style=">, Alias<hash_style>;
 270 def alias_init_init: J<"init=">, Alias<init>;
 271 def alias_l__library: J<"library=">, Alias<l>;
 272 def alias_omagic: Flag<["-"], "N">, Alias<omagic>;
 273 def alias_o_output: Joined<["--"], "output=">, Alias<o>;
 274 def alias_o_output2 : Separate<["--"], "output">, Alias<o>;
 275 def alias_pie_pic_executable: F<"pic-executable">, Alias<pie>;
 276 def alias_relocatable_r: Flag<["-"], "r">, Alias<relocatable>;
 277 def alias_retain_symbols_file: S<"retain-symbols-file">, Alias<retain_symbols_file>;
 278 def alias_rpath_R: JoinedOrSeparate<["-"], "R">, Alias<rpath>;
 279 def alias_rpath_rpath: J<"rpath=">, Alias<rpath>;
 280 def alias_script_T: JoinedOrSeparate<["-"], "T">, Alias<script>;
 281 def alias_shared_Bshareable: F<"Bshareable">, Alias<shared>;
 282 def alias_soname_h: JoinedOrSeparate<["-"], "h">, Alias<soname>;
 283 def alias_soname_soname: S<"soname">, Alias<soname>;
 284 def alias_sort_section: J<"sort-section=">, Alias<sort_section>;
 285 def alias_script: J<"script=">, Alias<script>;
 286 def alias_strip_all: Flag<["-"], "s">, Alias<strip_all>;
 287 def alias_strip_debug_S: Flag<["-"], "S">, Alias<strip_debug>;
 288 def alias_Tbss: J<"Tbss=">, Alias<Tbss>;
 289 def alias_Tdata: J<"Tdata=">, Alias<Tdata>;
 290 def alias_trace: Flag<["-"], "t">, Alias<trace>;
 291 def alias_trace_symbol_y : JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>;
 292 def alias_Ttext: J<"Ttext=">, Alias<Ttext>;
 293 def alias_Ttext_segment: S<"Ttext-segment">, Alias<Ttext>;
 294 def alias_Ttext_segment_eq: J<"Ttext-segment=">, Alias<Ttext>;
 295 def alias_undefined_eq: J<"undefined=">, Alias<undefined>;
 296 def alias_undefined_u: JoinedOrSeparate<["-"], "u">, Alias<undefined>;
 297 def alias_version_V: Flag<["-"], "V">, Alias<version>;
 298 def alias_wrap_wrap: J<"wrap=">, Alias<wrap>;
 299
 300 // Our symbol resolution algorithm handles symbols in archive files differently
 301 // than traditional linkers, so we don't need --start-group and --end-group.
 302 // These options are recongized for compatibility but ignored.
 303 def end_group: F<"end-group">;
 304 def end_group_paren: Flag<["-"], ")">;
 305 def start_group: F<"start-group">;
 306 def start_group_paren: Flag<["-"], "(">;
 307
 308 // Ignore LTO plugin-related options.
 309 // clang -flto passes -plugin and -plugin-opt to the linker. This is required
 310 // for ld.gold and ld.bfd to get LTO working. But it's not for lld which doesn't
 311 // rely on a plugin. Instead of detecting which linker is used on clang side we
 312 // just ignore the option on lld side as it's easier. In fact, the linker could
 313 // be called 'ld' and understanding which linker is used would require parsing of
 314 // --version output.
 315 def plugin: S<"plugin">;
 316 def plugin_eq: J<"plugin=">;
 317 def plugin_opt: S<"plugin-opt">;
 318 def plugin_opt_eq: J<"plugin-opt=">;
 319
 320 // Options listed below are silently ignored for now for compatibility.
 321 def allow_shlib_undefined: F<"allow-shlib-undefined">;
 322 def cref: Flag<["--"], "cref">;
 323 def define_common: F<"define-common">;
 324 def demangle: F<"demangle">;
 325 def detect_odr_violations: F<"detect-odr-violations">;
 326 def g: Flag<["-"], "g">;
 327 def M: Flag<["-"], "M">;
 328 def Map: JS<"Map">;
 329 def no_add_needed: F<"no-add-needed">;
 330 def no_allow_shlib_undefined: F<"no-allow-shlib-undefined">;
 331 def no_copy_dt_needed_entries: F<"no-copy-dt-needed-entries">,
 332   Alias<no_add_needed>;
 333 def no_dynamic_linker: F<"no-dynamic-linker">;
 334 def no_fatal_warnings: F<"no-fatal-warnings">;
 335 def no_mmap_output_file: F<"no-mmap-output-file">;
 336 def no_warn_common: F<"no-warn-common">;
 337 def no_warn_mismatch: F<"no-warn-mismatch">;
 338 def rpath_link: S<"rpath-link">;
 339 def rpath_link_eq: J<"rpath-link=">;
 340 def sort_common: F<"sort-common">;
 341 def stats: F<"stats">;
 342 def warn_execstack: F<"warn-execstack">;
 343 def warn_shared_textrel: F<"warn-shared-textrel">;
 344 def EB : F<"EB">;
 345 def EL : F<"EL">;
 346 def G: JoinedOrSeparate<["-"], "G">;
 347 def Qy : F<"Qy">;
 348
 349 // Aliases for ignored options
 350 def alias_define_common_d: Flag<["-"], "d">, Alias<define_common>;
 351 def alias_define_common_dc: F<"dc">, Alias<define_common>;
 352 def alias_define_common_dp: F<"dp">, Alias<define_common>;
 353 def alias_Map_eq: J<"Map=">, Alias<Map>;
 354 def alias_version_script_version_script: J<"version-script=">,
 355   Alias<version_script>;
 356
 357 // LTO-related options.
 358 def lto_aa_pipeline: J<"lto-aa-pipeline=">,
 359   HelpText<"AA pipeline to run during LTO. Used in conjunction with -lto-newpm-passes">;
 360 def lto_newpm_passes: J<"lto-newpm-passes=">,
 361   HelpText<"Passes to run during LTO">;
 362 def lto_partitions: J<"lto-partitions=">,
 363   HelpText<"Number of LTO codegen partitions">;
 364 def disable_verify: F<"disable-verify">;
 365 def mllvm: S<"mllvm">;
 366 def save_temps: F<"save-temps">;
 367 def thinlto_jobs: J<"thinlto-jobs=">, HelpText<"Number of ThinLTO jobs">;