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>;
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>;
}
defm auxiliary: Eq<"auxiliary", "Set DT_AUXILIARY field to the specified name">;
def be8: F<"be8">, HelpText<"write a Big Endian ELF file using BE8 format (AArch32 only)">;
def Bno_symbolic: F<"Bno-symbolic">, HelpText<"Don't bind default visibility defined symbols locally for -shared (default)">;
def Bsymbolic: F<"Bsymbolic">, HelpText<"Bind default visibility defined symbols locally for -shared">;
def Bsymbolic_non_weak: F<"Bsymbolic-non-weak">,
HelpText<"Bind default visibility defined STB_GLOBAL symbols locally for -shared">;
def Bsymbolic_functions: F<"Bsymbolic-functions">,
HelpText<"Bind default visibility defined function symbols locally for -shared">;
def Bsymbolic_non_weak_functions: F<"Bsymbolic-non-weak-functions">,
HelpText<"Bind default visibility defined STB_GLOBAL function symbols locally for -shared">;
def Bdynamic: F<"Bdynamic">, HelpText<"Link against shared libraries (default)">;
def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries">;
def build_id: J<"build-id=">, HelpText<"Generate build ID note">,
MetaVarName<"[fast,md5,sha1,uuid,0x<hexstring>]">;
def : F<"build-id">, Alias<build_id>, AliasArgs<["sha1"]>, HelpText<"Alias for --build-id=sha1">;
defm check_sections: B<"check-sections",
"Check section addresses for overlaps (default)",
"Do not check section addresses for overlaps">;
defm compress_debug_sections:
Eq<"compress-debug-sections", "Compress DWARF debug sections">,
MetaVarName<"[none,zlib,zstd]">;
defm compress_sections: EEq<"compress-sections",
"Compress output sections that match the glob and do not have the SHF_ALLOC flag. "
"The sections remain uncompressed if compressed content would be larger. "
"The compression level is <level> (if specified) or a default speed-focused level">,
MetaVarName<"<section-glob>={none,zlib,zstd}[:level]">;
defm defsym: Eq<"defsym", "Define a symbol alias">, MetaVarName<"<symbol>=<value>">;
defm optimize_bb_jumps: BB<"optimize-bb-jumps",
"Remove direct jumps at the end to the next basic block",
"Do not remove any direct jumps at the end to the next basic block (default)">;
defm fortran_common : BB<"fortran-common",
"Search archive members for definitions to override COMMON symbols (default)",
"Do not search archive members for definitions to override COMMON symbols">;
defm split_stack_adjust_size
: Eq<"split-stack-adjust-size",
"Specify adjustment to stack size when a split-stack function calls a "
"non-split-stack function">,
MetaVarName<"<value>">;
def O: JoinedOrSeparate<["-"], "O">, HelpText<"Optimize output file size">;
def cmse_implib: FF<"cmse-implib">,
HelpText<"Make the output library to be a CMSE secure code import library">;
defm in_implib: EEq<"in-implib",
"Read an existing CMSE secure code import library and preserve entry function addresses in the "
"resulting new CMSE secure code import library (optional when creating a CMSE secure image)">,
MetaVarName<"<file>">;
defm out_implib: EEq<"out-implib",
"Output the CMSE secure code import library to <file> (required when creating a CMSE secure image)">,
MetaVarName<"<file>">;
defm Tbss: Eq<"Tbss", "Same as --section-start with .bss as the sectionname">;
defm Tdata: Eq<"Tdata", "Same as --section-start with .data as the sectionname">;
defm Ttext: Eq<"Ttext", "Same as --section-start with .text as the sectionname">;
def Ttext_segment: Separate<["-", "--"], "Ttext-segment">;
defm allow_multiple_definition: B<"allow-multiple-definition",
"Allow multiple definitions",
"Do not allow multiple definitions (default)">;
defm allow_shlib_undefined: B<"allow-shlib-undefined",
"Allow unresolved references in shared libraries (default when linking a shared library)",
"Do not allow unresolved references in shared libraries (default when linking an executable)">;
defm apply_dynamic_relocs: BB<"apply-dynamic-relocs",
"Apply link-time values for dynamic relocations",
"Do not apply link-time values for dynamic relocations (default)">;
defm dependent_libraries: BB<"dependent-libraries",
"Process dependent library specifiers from input files (default)",
"Ignore dependent library specifiers from input files">;
defm as_needed: B<"as-needed",
"Only set DT_NEEDED for shared libraries if used",
"Always set DT_NEEDED for shared libraries (default)">;
defm call_graph_ordering_file:
Eq<"call-graph-ordering-file", "Layout sections to optimize the given callgraph">;
def call_graph_profile_sort: JJ<"call-graph-profile-sort=">,
HelpText<"Reorder input sections with call graph profile using the specified algorithm (default: cdsort)">,
MetaVarName<"[none,hfsort,cdsort]">,
Values<"none,hfsort,cdsort">;
def : FF<"no-call-graph-profile-sort">, Alias<call_graph_profile_sort>, AliasArgs<["none"]>,
Flags<[HelpHidden]>;
// --chroot doesn't have a help text because it is an internal option.
def chroot: Separate<["--"], "chroot">;
def color_diagnostics: JJ<"color-diagnostics=">,
HelpText<"Use colors in diagnostics (default: auto)">,
MetaVarName<"[auto,always,never]">;
def : Flag<["--"], "color-diagnostics">, Alias<color_diagnostics>, AliasArgs<["always"]>,
HelpText<"Alias for --color-diagnostics=always">;
def : Flag<["--"], "no-color-diagnostics">, Alias<color_diagnostics>, AliasArgs<["never"]>,
HelpText<"Alias for --color-diagnostics=never">;
def cref: FF<"cref">,
HelpText<"Output cross reference table. If -Map is specified, print to the map file">;
defm debug_names: BB<"debug-names",
"Generate a merged .debug_names section",
"Do not generate a merged .debug_names section (default)">;
defm default_script: EEq<"default-script", "In the absence of --script, read this default linker script">;
defm demangle: B<"demangle",
"Demangle symbol names (default)",
"Do not demangle symbol names">;
defm dependency_file: EEq<"dependency-file", "Write a dependency file">,
MetaVarName<"<file>">;
def disable_new_dtags: F<"disable-new-dtags">,
HelpText<"Disable new dynamic tags">;
def discard_all: F<"discard-all">, HelpText<"Delete all local symbols">;
def discard_locals: F<"discard-locals">,
HelpText<"Delete temporary local symbols">;
def discard_none: F<"discard-none">,
HelpText<"Keep all symbols in the symbol table">;
defm dynamic_linker: Eq<"dynamic-linker", "Which dynamic linker to use">;
defm dynamic_list : Eq<"dynamic-list",
"Similar to --export-dynamic-symbol-list. When creating a shared object, "
"this additionally implies -Bsymbolic but does not set DF_SYMBOLIC">,
MetaVarName<"<file>">;
def eb: F<"EB">, HelpText<"Select the big-endian format in OUTPUT_FORMAT">;
def el: F<"EL">, HelpText<"Select the little-endian format in OUTPUT_FORMAT">;
defm eh_frame_hdr: B<"eh-frame-hdr",
"Request creation of .eh_frame_hdr section and PT_GNU_EH_FRAME segment header",
"Do not create .eh_frame_hdr section">;
def emit_relocs: F<"emit-relocs">, HelpText<"Generate relocations in output">;
def enable_new_dtags: F<"enable-new-dtags">,
HelpText<"Enable new dynamic tags (default)">;
def enable_non_contiguous_regions : FF<"enable-non-contiguous-regions">,
HelpText<"Spill input sections to later matching output sections to avoid memory region overflow">;
def end_group: F<"end-group">,
HelpText<"Ignored for compatibility with GNU unless you pass --warn-backrefs">;
def end_lib: F<"end-lib">,
HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;
defm entry: Eq<"entry", "Name of entry point symbol">,
MetaVarName<"<entry>">;
defm error_limit:
EEq<"error-limit", "Maximum number of errors to emit before stopping (0 = no limit)">;
def error_unresolved_symbols: F<"error-unresolved-symbols">,
HelpText<"Report unresolved symbols as errors">;
defm error_handling_script: EEq<"error-handling-script",
"Specify an error handling script">;
defm exclude_libs: Eq<"exclude-libs", "Exclude static libraries from automatic export">;
defm execute_only: BB<"execute-only",
"Mark executable sections unreadable",
"Mark executable sections readable (default)">;
defm export_dynamic: B<"export-dynamic",
"Put symbols in the dynamic symbol table",
"Do not put symbols in the dynamic symbol table (default)">;
defm export_dynamic_symbol : EEq<"export-dynamic-symbol",
"(executable) Put matched symbols in the dynamic symbol table. "
"(shared object) References to matched non-local STV_DEFAULT symbols "
"shouldn't be bound to definitions within the shared object. "
"Does not imply -Bsymbolic.">,
MetaVarName<"glob">;
defm export_dynamic_symbol_list : EEq<"export-dynamic-symbol-list",
"Read a list of dynamic symbol patterns. Apply --export-dynamic-symbol on each pattern">,
MetaVarName<"file">;
defm fatal_warnings: B<"fatal-warnings",
"Treat warnings as errors",
"Do not treat warnings as errors (default)">;
defm filter: Eq<"filter", "Set DT_FILTER field to the specified name">;
defm fini: Eq<"fini", "Specify a finalizer function">, MetaVarName<"<symbol>">;
def fix_cortex_a53_843419: F<"fix-cortex-a53-843419">,
HelpText<"Apply fixes for AArch64 Cortex-A53 erratum 843419">;
def fix_cortex_a8: F<"fix-cortex-a8">,
HelpText<"Apply fixes for ARM Cortex-A8 erratum 657417">;
def force_group_allocation: FF<"force-group-allocation">,
HelpText<"Only meaningful for -r. Section groups are discarded. If two section group members are placed to the same output section, combine their relocations as well">;
defm format: Eq<"format", "Change the input format of the inputs following this option">,
MetaVarName<"[default,elf,binary]">;
defm gc_sections: B<"gc-sections",
"Enable garbage collection of unused sections",
"Disable garbage collection of unused sections (default)">;
defm gdb_index: BB<"gdb-index",
"Generate .gdb_index section",
"Do not generate .gdb_index section (default)">;
defm gnu_unique: BB<"gnu-unique",
"Enable STB_GNU_UNIQUE symbol binding (default)",
"Disable STB_GNU_UNIQUE symbol binding">;
defm hash_style: Eq<"hash-style", "Specify hash style (sysv, gnu or both)">;
def help: F<"help">, HelpText<"Print option help">;
def icf_all: F<"icf=all">, HelpText<"Enable identical code folding">;
def icf_safe: F<"icf=safe">, HelpText<"Enable safe identical code folding">;
def icf_none: F<"icf=none">, HelpText<"Disable identical code folding (default)">;
def ignore_function_address_equality: FF<"ignore-function-address-equality">,
HelpText<"lld can break the address equality of functions">;
def ignore_data_address_equality: FF<"ignore-data-address-equality">,
HelpText<"lld can break the address equality of data">;
defm image_base: EEq<"image-base", "Set the base address">;
defm init: Eq<"init", "Specify an initializer function">,
MetaVarName<"<symbol>">;
defm just_symbols: Eq<"just-symbols", "Just link symbols">;
defm keep_unique: Eq<"keep-unique", "Do not fold this symbol during ICF">;
def library: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libname>">,
HelpText<"Search for library <libname>">;
def library_path: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
HelpText<"Add <dir> to the library search path">;
def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
defm Map: Eq<"Map", "Print a link map to the specified file">;
defm merge_exidx_entries: B<"merge-exidx-entries",
"Enable merging .ARM.exidx entries (default)",
"Disable merging .ARM.exidx entries">;
defm mmap_output_file: BB<"mmap-output-file",
"Mmap the output file for writing (default)",
"Do not mmap the output file for writing">;
def nmagic: F<"nmagic">, MetaVarName<"<magic>">,
HelpText<"Do not page align sections, link against static libraries.">;
def nostdlib: F<"nostdlib">,
HelpText<"Only search directories specified on the command line">;
def no_dynamic_linker: F<"no-dynamic-linker">,
HelpText<"Inhibit output of .interp section">;
def noinhibit_exec: F<"noinhibit-exec">,
HelpText<"Retain the executable output file whenever it is still usable">;
def no_warn_mismatch: F<"no-warn-mismatch">,
HelpText<"Suppress errors for certain unknown seciton types">;
def no_nmagic: F<"no-nmagic">, MetaVarName<"<magic>">,
HelpText<"Page align sections (default)">;
def no_omagic: F<"no-omagic">, MetaVarName<"<magic>">,
HelpText<"Do not set the text data sections to be writable, page align sections (default)">;
def no_undefined: F<"no-undefined">,
HelpText<"Report unresolved symbols even if the linker is creating a shared library">;
def no_warnings: FF<"no-warnings">, HelpText<"Suppress warnings and cancel --fatal-warnings">;
def : Flag<["-"], "w">, Alias<no_warnings>, HelpText<"Alias for --no-warnings">;
def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
HelpText<"Path to file to write output">;
defm oformat: EEq<"oformat", "Specify the binary format for the output object file">,
MetaVarName<"[elf,binary]">;
def omagic: FF<"omagic">, MetaVarName<"<magic>">,
HelpText<"Set the text and data sections to be readable and writable, do not page align sections, link against static libraries">;
defm orphan_handling:
Eq<"orphan-handling", "Control how orphan sections are handled when linker script used">;
defm pack_dyn_relocs:
EEq<"pack-dyn-relocs", "Pack dynamic relocations in the given format">,
MetaVarName<"[none,android,relr,android+relr]">;
defm use_android_relr_tags: BB<"use-android-relr-tags",
"Use SHT_ANDROID_RELR / DT_ANDROID_RELR* tags instead of SHT_RELR / DT_RELR*",
"Use SHT_RELR / DT_RELR* tags (default)">;
def pic_veneer: F<"pic-veneer">,
HelpText<"Always generate position independent thunks (veneers)">;
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)">;
defm print_icf_sections: B<"print-icf-sections",
"List identical folded sections",
"Do not list identical folded sections (default)">;
def print_archive_stats: J<"print-archive-stats=">,
HelpText<"Write archive usage statistics to the specified file. "
"Print the numbers of members and extracted members for each archive">;
defm print_symbol_order: Eq<"print-symbol-order",
"Print a symbol order specified by --call-graph-ordering-file into the specified file">;
def pop_state: F<"pop-state">,
HelpText<"Restore the states saved by --push-state">;
def push_state: F<"push-state">,
HelpText<"Save the current state of --as-needed, -static and --whole-archive">;
def print_map: F<"print-map">,
HelpText<"Print a link map to the standard output">;
def print_memory_usage: F<"print-memory-usage">,
HelpText<"Report target memory usage">;
defm relax: BB<"relax",
"Enable target-specific relaxations if supported (default)",
"Disable target-specific relaxations">;
defm relax_gp: BB<"relax-gp",
"Enable global pointer relaxation",
"Disable global pointer relaxation (default)">;
defm remap_inputs: EEq<"remap-inputs",
"Remap input files matching <from-glob> to <to-file>">,
MetaVarName<"<from-glob>=<to-file>">;
def remap_inputs_file: JJ<"remap-inputs-file=">,
HelpText<"Each line contains 'from-glob=to-file'. An input file matching <from-glob> is remapped to <to-file>">,
MetaVarName<"<file>">;
defm reproduce:
EEq<"reproduce",
"Write tar file containing inputs and command to reproduce link">;
defm rosegment: BB<"rosegment",
"Put read-only non-executable sections in their own segment (default)",
"Do not put read-only non-executable sections in their own segment">;
defm rpath: Eq<"rpath", "Add a DT_RUNPATH to the output">;
def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
defm retain_symbols_file:
Eq<"retain-symbols-file", "Retain only the symbols listed in the file">,
MetaVarName<"<file>">;
defm script: Eq<"script", "Read linker script">;
defm section_start: Eq<"section-start", "Set address of section">,
MetaVarName<"<address>">;
def shared: F<"shared">, HelpText<"Build a shared object">;
defm soname: Eq<"soname", "Set DT_SONAME">;
defm sort_section:
Eq<"sort-section", "Specifies sections sorting rule when linkerscript is used">;
def start_group: F<"start-group">,
HelpText<"Ignored for compatibility with GNU unless you pass --warn-backrefs">;
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. Implies --strip-debug">;
def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
defm symbol_ordering_file:
EEq<"symbol-ordering-file", "Layout sections to place symbols in the order specified by symbol ordering file">;
defm sysroot: Eq<"sysroot", "Set the system root">;
def target1_rel: F<"target1-rel">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_REL32">;
def target1_abs: F<"target1-abs">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_ABS32 (default)">;
defm target2:
Eq<"target2", "Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel">,
MetaVarName<"<type>">;
defm threads
: EEq<"threads",
"Number of threads. '1' disables multi-threading. By default all "
"available hardware threads are used">;
def time_trace_eq: JJ<"time-trace=">, MetaVarName<"<file>">,
HelpText<"Record time trace to <file>">;
def : FF<"time-trace">, Alias<time_trace_eq>,
HelpText<"Record time trace to file next to output">;
defm time_trace_granularity: EEq<"time-trace-granularity",
"Minimum time granularity (in microseconds) traced by time profiler">;
defm toc_optimize : BB<"toc-optimize",
"(PowerPC64) Enable TOC related optimizations (default)",
"(PowerPC64) Disable TOC related optimizations">;
defm pcrel_optimize : BB<"pcrel-optimize",
"(PowerPC64) Enable PC-relative optimizations (default)",
"(PowerPC64) Disable PC-relative optimizations">;
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">,
MetaVarName<"<symbol>">;
defm undefined_glob: EEq<"undefined-glob", "Force undefined symbol during linking">,
MetaVarName<"<pattern>">;
def unique: F<"unique">, HelpText<"Creates a separate output section for every orphan input section">;
defm unresolved_symbols:
Eq<"unresolved-symbols", "Determine how to handle unresolved symbols">;
defm undefined_version: B<"undefined-version",
"Allow unused version in version script (disabled by default)",
"Report version scripts that refer undefined symbols">;
defm rsp_quoting: EEq<"rsp-quoting", "Quoting style for response files">,
MetaVarName<"[posix,windows]">;
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 power10_stubs_eq: JJ<"power10-stubs=">, MetaVarName<"<mode>">,
HelpText<"Whether to use Power10 instructions in call stubs for R_PPC64_REL24_NOTOC and TOC/NOTOC "
"interworking (yes (default): use; no: don't use). \"auto\" is currently the same as \"yes\"">;
def power10_stubs: FF<"power10-stubs">, Alias<power10_stubs_eq>, AliasArgs<["yes"]>,
HelpText<"Alias for --power10-stubs=auto">;
def no_power10_stubs: FF<"no-power10-stubs">, Alias<power10_stubs_eq>, AliasArgs<["no"]>,
HelpText<"Alias for --power10-stubs=no">;
defm version_script: Eq<"version-script", "Read a version script">;
defm warn_backrefs: BB<"warn-backrefs",
"Warn about backward symbol references to extract archive members",
"Do not warn about backward symbol references to extract archive members (default)">;
defm warn_backrefs_exclude
: EEq<"warn-backrefs-exclude",
"Glob describing an archive (or an object file within --start-lib) "
"which should be ignored for --warn-backrefs.">,
MetaVarName<"<glob>">;
defm warn_common: B<"warn-common",
"Warn about duplicate common symbols",
"Do not warn about duplicate common symbols (default)">;
defm warn_ifunc_textrel: BB<"warn-ifunc-textrel",
"Warn about using ifunc symbols with text relocations",
"Do not warn about using ifunc symbols with text relocations (default)">;
defm warn_symbol_ordering: BB<"warn-symbol-ordering",
"Warn about problems with the symbol ordering file (default)",
"Do not warn about problems with the symbol ordering file">;
def warn_unresolved_symbols: F<"warn-unresolved-symbols">,
HelpText<"Report unresolved symbols as warnings">;
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 wrap : Eq<"wrap", "Redirect symbol references to __wrap_symbol and "
"__real_symbol references to symbol">,
MetaVarName<"<symbol>">;
def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
HelpText<"Linker option extensions">;
def visual_studio_diagnostics_format : FF<"vs-diagnostics">,
HelpText<"Format diagnostics for Visual Studio compatibility">;
def package_metadata: JJ<"package-metadata=">, HelpText<"Emit package metadata note">;
// Aliases
def: Separate<["-"], "dT">, Alias<default_script>, HelpText<"Alias for --default-script">;
def: Separate<["-"], "f">, Alias<auxiliary>, HelpText<"Alias for --auxiliary">;
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<["-"], "x">, Alias<discard_all>, HelpText<"Alias for --discard-all">;
def: Flag<["-"], "X">, Alias<discard_locals>, HelpText<"Alias for --discard-locals">;
def: Flag<["-"], "q">, Alias<emit_relocs>, HelpText<"Alias for --emit-relocs">;
def: Flag<["-"], ")">, Alias<end_group>, HelpText<"Alias for --end-group">;
def: JoinedOrSeparate<["-"], "e">, Alias<entry>, HelpText<"Alias for --entry">;
def: Flag<["-"], "E">, Alias<export_dynamic>, HelpText<"Alias for --export-dynamic">;
def: Separate<["-"], "F">, Alias<filter>, HelpText<"Alias for --filter">;
def: Separate<["-"], "b">, Alias<format>, HelpText<"Alias for --format">;
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<["-"], "n">, Alias<nmagic>, HelpText<"Alias for --nmagic">;
def: Flag<["-"], "N">, Alias<omagic>, HelpText<"Alias for --omagic">;
def: Joined<["--"], "output=">, Alias<o>, HelpText<"Alias for -o">;
def: Separate<["--"], "output">, Alias<o>, HelpText<"Alias for -o">;
def: F<"pic-executable">, Alias<pie>, HelpText<"Alias for --pie">;
def: Flag<["-"], "M">, Alias<print_map>, HelpText<"Alias for --print-map">;
def: Flag<["-"], "r">, Alias<relocatable>, HelpText<"Alias for --relocatable">;
def: JoinedOrSeparate<["-"], "R">, Alias<rpath>, HelpText<"Alias for --rpath">;
def: JoinedOrSeparate<["-"], "T">, Alias<script>, HelpText<"Alias for --script">;
def: F<"Bshareable">, Alias<shared>, HelpText<"Alias for --shared">;
def: JoinedOrSeparate<["-"], "h">, Alias<soname>, HelpText<"Alias for --soname">;
def: Flag<["-"], "(">, Alias<start_group>, HelpText<"Alias for --start-group">;
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: Joined<["-", "--"], "Ttext-segment=">, Alias<Ttext_segment>;
def: JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>, HelpText<"Alias for --trace-symbol">;
def: JoinedOrSeparate<["-"], "u">, Alias<undefined>, HelpText<"Alias for --undefined">;
def: Flag<["-"], "V">, Alias<v>, HelpText<"Alias for -v">;
// LTO-related options.
def lto: JJ<"lto=">, HelpText<"Set LTO backend">,
MetaVarName<"[full,thin]">;
def lto_aa_pipeline: JJ<"lto-aa-pipeline=">,
HelpText<"AA pipeline to run during LTO. Used in conjunction with -lto-newpm-passes">;
def lto_debug_pass_manager: FF<"lto-debug-pass-manager">,
HelpText<"Debug new pass manager">;
def lto_emit_asm: FF<"lto-emit-asm">,
HelpText<"Emit assembly code">;
def lto_emit_llvm: FF<"lto-emit-llvm">,
HelpText<"Emit LLVM-IR bitcode">;
def lto_newpm_passes: JJ<"lto-newpm-passes=">,
HelpText<"Passes to run during LTO">;
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 lto_cs_profile_generate: FF<"lto-cs-profile-generate">,
HelpText<"Perform context sensitive PGO instrumentation">;
def lto_cs_profile_file: JJ<"lto-cs-profile-file=">,
HelpText<"Context sensitive profile file path">;
defm lto_pgo_warn_mismatch: BB<"lto-pgo-warn-mismatch",
"turn on warnings about profile cfg mismatch (default)",
"turn off warnings about profile cfg mismatch">;
defm lto_known_safe_vtables : EEq<"lto-known-safe-vtables",
"When --lto-validate-all-vtables-have-type-infos is enabled, skip validation on these vtables (_ZTV symbols)">;
def lto_obj_path_eq: JJ<"lto-obj-path=">;
def lto_sample_profile: JJ<"lto-sample-profile=">,
HelpText<"Sample profile file path">;
defm lto_validate_all_vtables_have_type_infos: BB<"lto-validate-all-vtables-have-type-infos",
"Validate that all vtables have type infos for LTO link",
"Do not validate that all vtables have type infos for LTO link">;
defm lto_whole_program_visibility: BB<"lto-whole-program-visibility",
"Asserts that the LTO link has whole program visibility",
"Asserts that the LTO link does not have whole program visibility">;
def disable_verify: F<"disable-verify">;
defm mllvm: Eq<"mllvm", "Additional arguments to forward to LLVM's option processing">;
def opt_remarks_filename: Separate<["--"], "opt-remarks-filename">,
HelpText<"YAML output file for optimization remarks">;
defm opt_remarks_hotness_threshold: EEq<"opt-remarks-hotness-threshold",
"Minimum profile count required for an optimization remark to be output."
" Use 'auto' to apply the threshold from profile summary.">,
MetaVarName<"<value>">;
def opt_remarks_passes: Separate<["--"], "opt-remarks-passes">,
HelpText<"Regex for the passes that need to be serialized to the output file">;
def opt_remarks_with_hotness: FF<"opt-remarks-with-hotness">,
HelpText<"Include hotness information in the optimization remarks file">;
def opt_remarks_format: Separate<["--"], "opt-remarks-format">,
HelpText<"The format used for serializing remarks (default: YAML)">;
def save_temps: F<"save-temps">, HelpText<"Save intermediate LTO compilation results">;
def save_temps_eq: JJ<"save-temps=">, HelpText<"Save select intermediate LTO compilation results">,
Values<"resolution,preopt,promote,internalize,import,opt,precodegen,prelink,combinedindex">;
def lto_basic_block_sections: JJ<"lto-basic-block-sections=">,
HelpText<"Enable basic block sections for LTO">;
defm lto_basic_block_address_map: BB<"lto-basic-block-address-map",
"Emit basic block address map for LTO",
"Do not emit basic block address map for LTO (default)">;
defm lto_unique_basic_block_section_names: BB<"lto-unique-basic-block-section-names",
"Give unique names to every basic block section for LTO",
"Do not give unique names to every basic block section for LTO (default)">;
defm shuffle_sections: EEq<"shuffle-sections",
"Shuffle matched sections using the given seed before mapping them to the output sections. "
"If -1, reverse the section order. If 0, use a random seed">,
MetaVarName<"<section-glob>=<seed>">;
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_emit_imports_files: FF<"thinlto-emit-imports-files">;
def thinlto_emit_index_files: FF<"thinlto-emit-index-files">;
def thinlto_index_only: FF<"thinlto-index-only">;
def thinlto_index_only_eq: JJ<"thinlto-index-only=">;
def thinlto_jobs_eq: JJ<"thinlto-jobs=">,
HelpText<"Number of ThinLTO jobs. Default to --threads=">;
def thinlto_object_suffix_replace_eq: JJ<"thinlto-object-suffix-replace=">;
def thinlto_prefix_replace_eq: JJ<"thinlto-prefix-replace=">;
def thinlto_single_module_eq: JJ<"thinlto-single-module=">,
HelpText<"Specify a single module to compile in ThinLTO mode, for debugging only">;
defm fat_lto_objects: BB<"fat-lto-objects",
"Use the .llvm.lto section, which contains LLVM bitcode, in fat LTO object files to perform LTO.",
"Ignore the .llvm.lto section in relocatable object files (default).">;
def: J<"plugin-opt=O">, Alias<lto_O>, HelpText<"Alias for --lto-O">;
def: F<"plugin-opt=debug-pass-manager">,
Alias<lto_debug_pass_manager>, HelpText<"Alias for --lto-debug-pass-manager">;
def: F<"plugin-opt=disable-verify">, Alias<disable_verify>, HelpText<"Alias for --disable-verify">;
def plugin_opt_dwo_dir_eq: J<"plugin-opt=dwo_dir=">,
HelpText<"Directory to store .dwo files when LTO and debug fission are used">;
def plugin_opt_emit_asm: F<"plugin-opt=emit-asm">,
Alias<lto_emit_asm>, HelpText<"Alias for --lto-emit-asm">;
def plugin_opt_emit_llvm: F<"plugin-opt=emit-llvm">,
Alias<lto_emit_llvm>, HelpText<"Alias for --lto-emit-llvm">;
def: J<"plugin-opt=jobs=">, Alias<thinlto_jobs_eq>, HelpText<"Alias for --thinlto-jobs=">;
def: J<"plugin-opt=lto-partitions=">, Alias<lto_partitions>, HelpText<"Alias for --lto-partitions">;
def plugin_opt_mcpu_eq: J<"plugin-opt=mcpu=">;
def: F<"plugin-opt=cs-profile-generate">,
Alias<lto_cs_profile_generate>, HelpText<"Alias for --lto-cs-profile-generate">;
def: J<"plugin-opt=cs-profile-path=">,
Alias<lto_cs_profile_file>, HelpText<"Alias for --lto-cs-profile-file">;
def: J<"plugin-opt=obj-path=">,
Alias<lto_obj_path_eq>,
HelpText<"Alias for --lto-obj-path=">;
def: J<"plugin-opt=opt-remarks-filename=">,
Alias<opt_remarks_filename>,
HelpText<"Alias for --opt-remarks-filename">;
def: J<"plugin-opt=opt-remarks-passes=">,
Alias<opt_remarks_passes>,
HelpText<"Alias for --opt-remarks-passes">;
def: J<"plugin-opt=opt-remarks-format=">,
Alias<opt_remarks_format>,
HelpText<"Alias for --opt-remarks-format">;
def: F<"plugin-opt=opt-remarks-with-hotness">,
Alias<opt_remarks_with_hotness>,
HelpText<"Alias for --opt-remarks-with_hotness">;
def: J<"plugin-opt=opt-remarks-hotness-threshold=">,
Alias<opt_remarks_hotness_threshold>,
HelpText<"Alias for --opt-remarks-hotness-threshold">;
def: J<"plugin-opt=sample-profile=">,
Alias<lto_sample_profile>, HelpText<"Alias for --lto-sample-profile">;
def: F<"plugin-opt=save-temps">, Alias<save_temps>, HelpText<"Alias for --save-temps">;
def plugin_opt_stats_file: J<"plugin-opt=stats-file=">,
HelpText<"Filename to write LTO statistics to">;
def: J<"plugin-opt=time-trace=">, Alias<time_trace_eq>, HelpText<"Alias for --time-trace=">;
def: F<"plugin-opt=thinlto-emit-imports-files">,
Alias<thinlto_emit_imports_files>,
HelpText<"Alias for --thinlto-emit-imports-files">;
def: F<"plugin-opt=thinlto-index-only">,
Alias<thinlto_index_only>,
HelpText<"Alias for --thinlto-index-only">;
def: J<"plugin-opt=thinlto-index-only=">,
Alias<thinlto_index_only_eq>,
HelpText<"Alias for --thinlto-index-only=">;
def: J<"plugin-opt=thinlto-object-suffix-replace=">,
Alias<thinlto_object_suffix_replace_eq>,
HelpText<"Alias for --thinlto-object-suffix-replace=">;
def: J<"plugin-opt=thinlto-prefix-replace=">,
Alias<thinlto_prefix_replace_eq>,
HelpText<"Alias for --thinlto-prefix-replace=">;
// Ignore LTO plugin-related options.
// clang -flto passes -plugin and -plugin-opt to the linker. This is required
// for ld.gold and ld.bfd to get LTO working. But it's not for lld which doesn't
// rely on a plugin. Instead of detecting which linker is used on clang side we
// just ignore the option on lld side as it's easier. In fact, the linker could
// be called 'ld' and understanding which linker is used would require parsing of
// --version output.
defm plugin: Eq<"plugin", "Ignored for compatibility with GNU linkers">;
def plugin_opt_eq_minus: J<"plugin-opt=-">,
HelpText<"Specify an LLVM option for compatibility with LLVMgold.so">;
def: J<"plugin-opt=thinlto">;
// Ignore GCC collect2 LTO plugin related options. Note that we don't support
// GCC LTO, but GCC collect2 passes these options even in non-LTO mode.
def: J<"plugin-opt=-fresolution=">;
def: J<"plugin-opt=-pass-through=">;
// This may be either an unhandled LLVMgold.so feature or GCC passed
// -plugin-opt=path/to/{liblto_plugin.so,lto-wrapper}
def plugin_opt_eq : J<"plugin-opt=">;
// Options listed below are silently ignored for now for compatibility.
def: Flag<["-"], "d">;
def: Flag<["-"], "g">;
def: F<"long-plt">;
def: FF<"no-add-needed">;
def: F<"no-copy-dt-needed-entries">;
def: F<"no-ctors-in-init-array">;
def: F<"no-keep-memory">;
def: Separate<["--", "-"], "rpath-link">;
def: J<"rpath-link=">;
def: F<"secure-plt">;
def: F<"sort-common">;
def: F<"stats">;
def: F<"warn-execstack">;
def: F<"warn-once">;
def: F<"warn-shared-textrel">;
def: JoinedOrSeparate<["-"], "G">;
// Hidden option used for testing MIPS multi-GOT implementation.
defm mips_got_size:
Eq<"mips-got-size", "Max size of a single MIPS GOT. 0x10000 by default.">,
Flags<[HelpHidden]>;
// Hidden option used to opt-in to additional output checks.
defm check_dynamic_relocations: BB<"check-dynamic-relocations",
"Perform additional validation of the written dynamic relocations",
"Do not perform additional validation of the written dynamic relocations">,
Flags<[HelpHidden]>;
defm load_pass_plugins: EEq<"load-pass-plugin", "Load passes from plugin library">;
// Hidden options, used by clang's -fsanitize=memtag-* options to emit an ELF
// note to designate what kinds of memory (stack/heap) should be protected using
// ARM's MTE on armv8.5+. A binary's desire for stack MTE can't be obtained
// implicitly, so we have a specific bit in the note to signal to the loader to
// remap the stack as PROT_MTE.
defm android_memtag_stack: BB<"android-memtag-stack",
"Instruct the dynamic loader to prepare for MTE stack instrumentation", "">;
defm android_memtag_heap: BB<"android-memtag-heap",
"Instruct the dynamic loader to enable MTE protection for the heap", "">;
defm android_memtag_mode: EEq<"android-memtag-mode",
"Instruct the dynamic loader to start under MTE mode {async, sync, none}">;
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