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llvm-mirror/tools/llvm-objcopy/ObjcopyOpts.td
Jordan Rupprecht eb7a7f2cd2 [llvm-objcopy] Implement -G/--keep-global-symbol(s).
Summary:
Port GNU Objcopy -G/--keep-global-symbol(s).

This is slightly different than the already-implemented --globalize-symbol, which marks a symbol as global when copying. When --keep-global-symbol (alias -G) is used, *only* those symbols marked will stay global, and all other globals are demoted to local. (Also note that it doesn't *promote* a symbol to global). Additionally, there is a pluralized version of the flag --keep-global-symbols, which effectively applies --keep-global-symbol for every non-comment in a file.

Reviewers: jakehehrlich, jhenderson, alexshap

Reviewed By: jhenderson

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D50589

llvm-svn: 340105
2018-08-17 22:34:48 +00:00

135 lines
6.4 KiB
TableGen

include "llvm/Option/OptParser.td"
multiclass Eq<string name> {
def NAME: Separate<["--", "-"], name>;
def NAME # _eq: Joined<["--", "-"], name # "=">, Alias<!cast<Separate>(NAME)>;
}
def help : Flag<["-", "--"], "help">;
defm binary_architecture : Eq<"binary-architecture">,
HelpText<"Used when transforming an architecture-less format (such as binary) to another format">;
def B : JoinedOrSeparate<["-"], "B">,
Alias<binary_architecture>;
defm input_target : Eq<"input-target">,
HelpText<"Format of the input file">,
Values<"binary">;
def I : JoinedOrSeparate<[ "-" ], "I">, Alias<input_target>;
defm output_target : Eq<"output-target">,
HelpText<"Format of the output file">,
Values<"binary">;
def O : JoinedOrSeparate<["-"], "O">,
Alias<output_target>;
defm split_dwo : Eq<"split-dwo">,
MetaVarName<"dwo-file">,
HelpText<"Equivalent to extract-dwo on the input file to <dwo-file>, then strip-dwo on the input file">;
def preserve_dates : Flag<[ "-", "--" ], "preserve-dates">,
HelpText<"Preserve access and modification timestamps">;
def p : Flag<[ "-" ], "p">, Alias<preserve_dates>;
defm add_gnu_debuglink : Eq<"add-gnu-debuglink">,
MetaVarName<"debug-file">,
HelpText<"Add a .gnu_debuglink for <debug-file>">;
defm remove_section : Eq<"remove-section">,
MetaVarName<"section">,
HelpText<"Remove <section>">;
defm rename_section
: Eq<"rename-section">,
MetaVarName<"old=new[,flag1,...]">,
HelpText<
"Renames a section from old to new, optionally with specified flags. "
"Flags supported for GNU compatibility: alloc, load, noload, "
"readonly, debug, code, data, rom, share, contents, merge, strings.">;
defm redefine_symbol : Eq<"redefine-sym">,
MetaVarName<"old=new">,
HelpText<"Change the name of a symbol old to new">;
def R : JoinedOrSeparate<["-"], "R">,
Alias<remove_section>;
defm keep : Eq<"keep">,
MetaVarName<"section">,
HelpText<"Keep <section>">;
defm only_keep : Eq<"only-keep">,
MetaVarName<"section">,
HelpText<"Remove all but <section>">;
def j : JoinedOrSeparate<["-"], "j">,
Alias<only_keep>;
defm add_section : Eq<"add-section">,
MetaVarName<"section=file">,
HelpText<"Make a section named <section> with the contents of <file>.">;
def strip_all : Flag<["-", "--"], "strip-all">,
HelpText<"Remove non-allocated sections other than .gnu.warning* sections">;
def strip_all_gnu : Flag<["-", "--"], "strip-all-gnu">,
HelpText<"Compaitable with GNU objcopy's --strip-all">;
def strip_debug : Flag<["-", "--"], "strip-debug">,
HelpText<"Remove all debug information">;
def strip_dwo : Flag<["-", "--"], "strip-dwo">,
HelpText<"Remove all DWARF .dwo sections from file">;
def strip_sections : Flag<["-", "--"], "strip-sections">,
HelpText<"Remove all section headers">;
def strip_non_alloc : Flag<["-", "--"], "strip-non-alloc">,
HelpText<"Remove all non-allocated sections">;
def extract_dwo : Flag<["-", "--"], "extract-dwo">,
HelpText<"Remove all sections that are not DWARF .dwo sections from file">;
def localize_hidden : Flag<["-", "--"], "localize-hidden">,
HelpText<"Mark all symbols that have hidden or internal visibility as local">;
defm localize_symbol : Eq<"localize-symbol">,
MetaVarName<"symbol">,
HelpText<"Mark <symbol> as local">;
def L : JoinedOrSeparate<["-"], "L">,
Alias<localize_symbol>;
defm globalize_symbol : Eq<"globalize-symbol">,
MetaVarName<"symbol">,
HelpText<"Mark <symbol> as global">;
defm keep_global_symbol
: Eq<"keep-global-symbol">,
MetaVarName<"symbol">,
HelpText<"Convert all symbols except <symbol> to local. May be repeated "
"to convert all except a set of symbols to local.">;
def G : JoinedOrSeparate<[ "-" ], "G">, Alias<keep_global_symbol>;
defm keep_global_symbols
: Eq<"keep-global-symbols">,
MetaVarName<"filename">,
HelpText<
"Reads a list of symbols from <filename> and runs as if "
"--keep-global-symbol=<symbol> is set for each one. <filename> "
"contains one symbol per line and may contain comments beginning "
"with '#'. Leading and trailing whitespace is stripped from each "
"line. May be repeated to read symbols from many files.">;
defm weaken_symbol : Eq<"weaken-symbol">,
MetaVarName<"symbol">,
HelpText<"Mark <symbol> as weak">;
def W : JoinedOrSeparate<["-"], "W">,
Alias<weaken_symbol>;
def weaken : Flag<["-", "--"], "weaken">,
HelpText<"Mark all global symbols as weak">;
def discard_all : Flag<["-", "--"], "discard-all">,
HelpText<"Remove all local symbols except file and section symbols">;
def x : Flag<["-"], "x">,
Alias<discard_all>;
defm strip_symbol : Eq<"strip-symbol">,
MetaVarName<"symbol">,
HelpText<"Remove symbol <symbol>">;
def N : JoinedOrSeparate<["-"], "N">,
Alias<strip_symbol>;
defm keep_symbol : Eq<"keep-symbol">,
MetaVarName<"symbol">,
HelpText<"Do not remove symbol <symbol>">;
def K : JoinedOrSeparate<["-"], "K">,
Alias<keep_symbol>;
def only_keep_debug : Flag<["-", "--"], "only-keep-debug">,
HelpText<"Currently ignored. Only for compaitability with GNU objcopy.">;
def strip_unneeded : Flag<["-", "--"], "strip-unneeded">,
HelpText<"Remove all symbols not needed by relocations">;
def keep_file_symbols : Flag<["-", "--"], "keep-file-symbols">,
HelpText<"Do not remove file symbols">;
defm dump_section : Eq<"dump-section">,
MetaVarName<"section=file">,
HelpText<"Dump contents of section named <section> into file <file>">;
defm prefix_symbols : Eq<"prefix-symbols">,
MetaVarName<"prefix">,
HelpText<"Add <prefix> to the start of every symbol name">;