hanchenye-llvm-project/lld/lib/Driver/GnuLdOptions.td

299 lines
12 KiB
TableGen

include "llvm/Option/OptParser.td"
//===----------------------------------------------------------------------===//
/// Utility Functions
//===----------------------------------------------------------------------===//
// Single and multiple dash options combined
multiclass smDash<string opt1, string opt2, string help> {
// Option
def "" : Separate<["-"], opt1>, HelpText<help>;
def opt1_eq : Joined<["-"], opt1#"=">,
Alias<!cast<Option>(opt1)>;
// Compatibility aliases
def opt2_dashdash : Separate<["--"], opt2>,
Alias<!cast<Option>(opt1)>;
def opt2_dashdash_eq : Joined<["--"], opt2#"=">,
Alias<!cast<Option>(opt1)>;
}
// Support -<option>,-<option>=
multiclass dashEq<string opt1, string opt2, string help> {
// Option
def "" : Separate<["-"], opt1>, HelpText<help>;
// Compatibility aliases
def opt2_eq : Joined<["-"], opt2#"=">,
Alias<!cast<Option>(opt1)>;
}
//===----------------------------------------------------------------------===//
/// LLVM and Target options
//===----------------------------------------------------------------------===//
def grp_llvmtarget : OptionGroup<"opts">,
HelpText<"LLVM and Target Options">;
def mllvm : Separate<["-"], "mllvm">,
HelpText<"Options to pass to LLVM">, Group<grp_llvmtarget>;
def target : Separate<["-"], "target">, MetaVarName<"<triple>">,
HelpText<"Target triple to link for">,
Group<grp_llvmtarget>;
//===----------------------------------------------------------------------===//
/// Output Kinds
//===----------------------------------------------------------------------===//
def grp_kind : OptionGroup<"outs">,
HelpText<"OUTPUT KIND">;
def relocatable : Flag<["-"], "r">,
HelpText<"Create relocatable object file">, Group<grp_kind>;
def static : Flag<["-"], "static">,
HelpText<"Create static executable">, Group<grp_kind>;
def dynamic : Flag<["-"], "dynamic">,
HelpText<"Create dynamic executable (default)">,Group<grp_kind>;
def shared : Flag<["-"], "shared">,
HelpText<"Create dynamic library">, Group<grp_kind>;
// output kinds - compatibility aliases
def Bstatic : Flag<["-"], "Bstatic">, Alias<static>;
def Bshareable : Flag<["-"], "Bshareable">, Alias<shared>;
//===----------------------------------------------------------------------===//
/// General Options
//===----------------------------------------------------------------------===//
def grp_general : OptionGroup<"opts">,
HelpText<"GENERAL OPTIONS">;
def output : Separate<["-"], "o">, MetaVarName<"<path>">,
HelpText<"Path to file to write output">,
Group<grp_general>;
def m : Separate<["-"], "m">, MetaVarName<"<emulation>">,
HelpText<"Select target emulation">,
Group<grp_general>;
def build_id : Flag<["--"], "build-id">,
HelpText<"Request creation of \".note.gnu.build-id\" ELF note section">,
Group<grp_general>;
def sysroot : Joined<["--"], "sysroot=">,
HelpText<"Set the system root">,
Group<grp_general>;
//===----------------------------------------------------------------------===//
/// Executable Options
//===----------------------------------------------------------------------===//
def grp_main : OptionGroup<"opts">,
HelpText<"EXECUTABLE OPTIONS">;
def L : Joined<["-"], "L">, MetaVarName<"<dir>">,
HelpText<"Directory to search for libraries">,
Group<grp_main>;
def l : Joined<["-"], "l">, MetaVarName<"<libName>">,
HelpText<"Root name of library to use">,
Group<grp_main>;
def noinhibit_exec : Flag<["--"], "noinhibit-exec">,
HelpText<"Retain the executable output file whenever"
" it is still usable">,
Group<grp_main>;
defm e : smDash<"e", "entry",
"Name of entry point symbol">,
Group<grp_main>;
defm init: dashEq<"init", "init",
"Specify an initializer function">,
Group<grp_main>;
defm fini: dashEq<"fini", "fini",
"Specify a finalizer function">,
Group<grp_main>;
def whole_archive: Flag<["--"], "whole-archive">,
HelpText<"Force load of all members in a static library">,
Group<grp_main>;
def no_whole_archive: Flag<["--"], "no-whole-archive">,
HelpText<"Restores the default behavior of loading archive members">,
Group<grp_main>;
def nostdlib : Flag<["-"], "nostdlib">,
HelpText<"Disable default search path for libraries">,
Group<grp_main>;
def image_base : Separate<["--"], "image-base">,
HelpText<"Set the base address">,
Group<grp_main>;
//===----------------------------------------------------------------------===//
/// Static Executable Options
//===----------------------------------------------------------------------===//
def grp_staticexec : OptionGroup<"opts">,
HelpText<"STATIC EXECUTABLE OPTIONS">;
def nmagic : Flag<["--"], "nmagic">,
HelpText<"Turn off page alignment of sections,"
" and disable linking against shared libraries">,
Group<grp_staticexec>;
def omagic : Flag<["--"], "omagic">,
HelpText<"Set the text and data sections to be readable and writable."
" Also, do not page-align the data segment, and"
" disable linking against shared libraries.">,
Group<grp_staticexec>;
def no_omagic : Flag<["--"], "no-omagic">,
HelpText<"This option negates most of the effects of the -N option."
"Disable linking with shared libraries">,
Group<grp_staticexec>;
// Compatible Aliases
def nmagic_alias : Flag<["-"], "n">,
Alias<nmagic>;
def omagic_alias : Flag<["-"], "N">,
Alias<omagic>;
//===----------------------------------------------------------------------===//
/// Dynamic Library/Executable Options
//===----------------------------------------------------------------------===//
def grp_dynlibexec : OptionGroup<"opts">,
HelpText<"DYNAMIC LIBRARY/EXECUTABLE OPTIONS">;
def dynamic_linker : Joined<["--"], "dynamic-linker=">,
HelpText<"Set the path to the dynamic linker">, Group<grp_dynlibexec>;
// Executable options - compatibility aliases
def dynamic_linker_alias : Separate<["-"], "dynamic-linker">,
Alias<dynamic_linker>;
defm rpath : dashEq<"rpath", "rpath",
"Add a directory to the runtime library search path">,
Group<grp_dynlibexec>;
def rpath_link : Separate<["-"], "rpath-link">,
HelpText<"Specifies the first set of directories to search">,
Group<grp_dynlibexec>;
def export_dynamic : Flag<["--"], "export-dynamic">,
HelpText<"Add all symbols to the dynamic symbol table"
" when creating executables">,
Group<grp_main>;
def alias_export_dynamic: Flag<["-"], "E">,
Alias<export_dynamic>;
//===----------------------------------------------------------------------===//
/// Dynamic Library Options
//===----------------------------------------------------------------------===//
def grp_dynlib : OptionGroup<"opts">,
HelpText<"DYNAMIC LIBRARY OPTIONS">;
def soname : Joined<["-", "--"], "soname=">,
HelpText<"Set the internal DT_SONAME field to the specified name">,
Group<grp_dynlib>;
def soname_separate : Separate<["-", "--"], "soname">, Alias<soname>;
def soname_h : Separate<["-"], "h">, Alias<soname>;
//===----------------------------------------------------------------------===//
/// Resolver Options
//===----------------------------------------------------------------------===//
def grp_resolveropt : OptionGroup<"opts">,
HelpText<"SYMBOL RESOLUTION OPTIONS">;
defm u : smDash<"u", "undefined",
"Force symbol to be entered in the output file"
" as an undefined symbol">,
Group<grp_resolveropt>;
def start_group : Flag<["--"], "start-group">,
HelpText<"Start a group">,
Group<grp_resolveropt>;
def alias_start_group: Flag<["-"], "(">,
Alias<start_group>;
def end_group : Flag<["--"], "end-group">,
HelpText<"End a group">,
Group<grp_resolveropt>;
def alias_end_group: Flag<["-"], ")">,
Alias<end_group>;
def as_needed : Flag<["--"], "as-needed">,
HelpText<"This option affects ELF DT_NEEDED tags for "
"dynamic libraries mentioned on the command line">,
Group<grp_resolveropt>;
def no_as_needed : Flag<["--"], "no-as-needed">,
HelpText<"This option restores the default behavior"
" of adding DT_NEEDED entries">,
Group<grp_resolveropt>;
def no_allow_shlib_undefs : Flag<["--"], "no-allow-shlib-undefined">,
HelpText<"Do not allow undefined symbols from dynamic"
" library when creating executables">,
Group<grp_resolveropt>;
def allow_shlib_undefs : Flag<["--"], "allow-shlib-undefined">,
HelpText<"Allow undefined symbols from dynamic"
" library when creating executables">,
Group<grp_resolveropt>;
def use_shlib_undefs: Flag<["--"], "use-shlib-undefines">,
HelpText<"Resolve undefined symbols from dynamic libraries">,
Group<grp_resolveropt>;
def allow_multiple_definition: Flag<["--"], "allow-multiple-definition">,
HelpText<"Allow multiple definitions">,
Group<grp_resolveropt>;
def defsym : Joined<["--"], "defsym=">,
HelpText<"Create a defined symbol">,
Group<grp_resolveropt>;
//===----------------------------------------------------------------------===//
/// Custom Options
//===----------------------------------------------------------------------===//
def grp_customopts : OptionGroup<"opts">,
HelpText<"CUSTOM OPTIONS">;
def rosegment: Flag<["--"], "rosegment">,
HelpText<"Put read-only non-executable sections in their own segment">,
Group<grp_customopts>;
def z : Separate<["-"], "z">,
HelpText<"Linker Option extensions">,
Group<grp_customopts>;
def no_align_segments: Flag<["--"], "no-align-segments">,
HelpText<"Don't align ELF segments(virtualaddress/fileoffset) to page boundaries">,
Group<grp_customopts>;
//===----------------------------------------------------------------------===//
/// Symbol options
//===----------------------------------------------------------------------===//
def grp_symbolopts : OptionGroup<"opts">,
HelpText<"SYMBOL OPTIONS">;
def demangle : Flag<["--"], "demangle">,
HelpText<"Demangle C++ symbols">,
Group<grp_symbolopts>;
def no_demangle : Flag<["--"], "no-demangle">,
HelpText<"Dont demangle C++ symbols">,
Group<grp_symbolopts>;
//===----------------------------------------------------------------------===//
/// Optimization Options
//===----------------------------------------------------------------------===//
def grp_opts : OptionGroup<"opts">,
HelpText<"OPTIMIZATIONS">;
def hash_style : Joined <["--"], "hash-style=">,
HelpText<"Set the type of linker's hash table(s)">,
Group<grp_opts>;
def merge_strings : Flag<["--"], "merge-strings">,
HelpText<"Merge common strings across mergeable sections">,
Group<grp_opts>;
def eh_frame_hdr : Flag<["--"], "eh-frame-hdr">,
HelpText<"Request creation of .eh_frame_hdr section and ELF "
" PT_GNU_EH_FRAME segment header">,
Group<grp_opts>;
//===----------------------------------------------------------------------===//
/// Tracing Options
//===----------------------------------------------------------------------===//
def grp_tracingopts : OptionGroup<"opts">,
HelpText<"TRACING OPTIONS">;
def t : Flag<["-"], "t">,
HelpText<"Print the names of the input files as ld processes them">,
Group<grp_tracingopts>;
//===----------------------------------------------------------------------===//
/// Extensions
//===----------------------------------------------------------------------===//
def grp_extns : OptionGroup<"opts">,
HelpText<"Extensions">;
def output_filetype: Separate<["--"], "output-filetype">,
HelpText<"Specify what type of output file that lld creates, YAML/Native">,
Group<grp_extns>;
def alias_output_filetype: Joined<["--"], "output-filetype=">,
Alias<output_filetype>;
//===----------------------------------------------------------------------===//
/// Ignored options
//===----------------------------------------------------------------------===//
def grp_ignored: OptionGroup<"ignored">,
HelpText<"GNU Options ignored for Compatibility ">;
def dashg : Flag<["-"], "g">,
HelpText<"Ignored.">,
Group<grp_ignored>;
def Qy : Flag<["-"], "Qy">,
HelpText<"Ignored for SVR4 Compatibility">,
Group<grp_ignored>;
def qmagic : Flag<["-"], "qmagic">,
HelpText<"Ignored for Linux Compatibility">,
Group<grp_ignored>;
//===----------------------------------------------------------------------===//
/// Help
//===----------------------------------------------------------------------===//
def help : Flag<["--"], "help">,
HelpText<"Display this help message">;