1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
|
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 (default)">;
def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries">;
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",
"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 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)">;
def fatal_warnings: F<"fatal-warnings">,
HelpText<"Treat warnings as errors">;
defm gc_sections: B<"gc-sections",
"Enable garbage collection of unused sections",
"Disable garbage collection of unused sections">;
defm merge_data_segments: BB<"merge-data-segments",
"Enable merging data segments",
"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 no_fatal_warnings: F<"no-fatal-warnings">;
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">;
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 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<"Where to start to place global data">;
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">;
def import_table: FF<"import-table">,
HelpText<"Import function table from the environment">;
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_entry: FF<"no-entry">,
HelpText<"Do not output any entry point">;
def stack_first: FF<"stack-first">,
HelpText<"Place stack at start of linear memory rather than after data">;
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">;
|
