2b2f4ae0fb
--change-section address and its alias --adjust-section-vma allows modification of section addresses in a relocatable file. This used to be used, for example, in Fiasco microkernel. On a relocatable file this option behaves the same as GNU objcopy, apart from the fact that it does not issue any warnings, for example, when an argument is not used. GNU objcopy does not produce an error when passed an executable file but the usecase for this is not clear, and the behaviour is inconsistent. The idea of GNU objcopy --change-section-address is that the option should change both LMA and VMA in an executable file. Since this patch does not implement executable file support, only VMA is changed.
300 lines
12 KiB
TableGen
300 lines
12 KiB
TableGen
include "CommonOpts.td"
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multiclass B<string name, string help1, string help2> {
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def NAME: Flag<["--"], name>, HelpText<help1>;
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def no_ # NAME: Flag<["--"], "no-" # name>, HelpText<help2>;
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}
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defm binary_architecture
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: Eq<"binary-architecture", "Ignored for compatibility">;
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def B : JoinedOrSeparate<["-"], "B">,
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Alias<binary_architecture>,
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HelpText<"Alias for --binary-architecture">;
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defm target : Eq<"target", "Equivalent to --input-target and --output-target for the specified format">,
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Values<"binary">;
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def F : JoinedOrSeparate<["-"], "F">,
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Alias<target>,
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HelpText<"Alias for --target">;
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defm input_target : Eq<"input-target", "Read the input as the specified format">, MetaVarName<"format">;
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def I : JoinedOrSeparate<["-"], "I">,
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Alias<input_target>,
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HelpText<"Alias for --input-target">;
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defm output_target : Eq<"output-target", "Write the output as the specified format">, MetaVarName<"format">;
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def O : JoinedOrSeparate<["-"], "O">,
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Alias<output_target>,
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HelpText<"Alias for --output-target">;
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defm new_symbol_visibility
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: Eq<"new-symbol-visibility", "Specify the visibility of symbols automatically "
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"created when using binary input or --add-symbol. The default is 'default'">;
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def compress_debug_sections
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: Joined<["--"], "compress-debug-sections=">,
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MetaVarName<"format">,
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HelpText<"Compress DWARF debug sections using specified format. Supported "
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"formats: zlib, zstd. Select zlib if <format> is omitted">;
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def : Flag<["--"], "compress-debug-sections">, Alias<compress_debug_sections>,
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AliasArgs<["zlib"]>;
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def decompress_debug_sections : Flag<["--"], "decompress-debug-sections">,
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HelpText<"Decompress DWARF debug sections">;
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defm compress_sections
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: Eq<"compress-sections",
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"Compress or decompress sections using specified format. Supported "
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"formats: zlib, zstd. Specify 'none' for decompression">,
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MetaVarName<"<section-glob>=<format>">;
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defm split_dwo
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: Eq<"split-dwo", "Equivalent to --extract-dwo and <dwo-file> as the output file and no other options, "
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"and then --strip-dwo on the input file">,
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MetaVarName<"dwo-file">;
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defm add_gnu_debuglink
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: Eq<"add-gnu-debuglink", "Add a .gnu_debuglink for <debug-file>">,
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MetaVarName<"debug-file">;
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defm rename_section
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: Eq<"rename-section",
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"Rename sections called <old> to <new>, and apply any specified <flag> values. "
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"See --set-section-flags for a list of supported flags">,
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MetaVarName<"old=new[,flag1,...]">;
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defm redefine_symbol
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: Eq<"redefine-sym", "Change the name of a symbol old to new">,
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MetaVarName<"old=new">;
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defm redefine_symbols
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: Eq<"redefine-syms",
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"Read a list of symbol pairs from <filename> and run as if "
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"--redefine-sym=<old>=<new> is set for each one. <filename> "
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"contains two symbols per line separated with whitespace and may "
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"contain comments beginning with '#'. Leading and trailing "
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"whitespace is stripped from each line. May be repeated to read "
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"symbols from many files">,
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MetaVarName<"filename">;
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defm only_section : Eq<"only-section", "Remove all but <section>">,
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MetaVarName<"section">;
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def j : JoinedOrSeparate<["-"], "j">,
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Alias<only_section>,
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HelpText<"Alias for --only-section">;
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defm add_section
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: Eq<"add-section",
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"Add a section named <section> with the contents of <file>">,
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MetaVarName<"section=file">;
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defm set_section_alignment
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: Eq<"set-section-alignment", "Set alignment for a given section">,
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MetaVarName<"section=align">;
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defm set_section_flags
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: Eq<"set-section-flags",
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"Set section properties based on the specified <flags>. Supported flag names are: "
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"alloc, load, noload, readonly, exclude, debug, code, "
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"data, rom, share, contents, merge, strings, large">,
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MetaVarName<"section=flag1[,flag2,...]">;
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defm set_section_type
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: Eq<"set-section-type",
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"Set the type of section <section> to the integer <type>">,
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MetaVarName<"section=type">;
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defm set_symbol_visibility
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: Eq<"set-symbol-visibility",
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"Change the visibility of a symbol to the specified value">,
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MetaVarName<"symbol=visibility">;
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defm set_symbols_visibility
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: Eq<"set-symbols-visibility",
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"Read a list of symbols from <filename> and change their "
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"visibility to the specified value. Visibility values: default, "
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"internal, hidden, protected">,
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MetaVarName<"filename=visibility">;
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def S : Flag<["-"], "S">,
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Alias<strip_all>,
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HelpText<"Alias for --strip-all">;
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def strip_dwo : Flag<["--"], "strip-dwo">,
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HelpText<"Remove all DWARF .dwo sections">;
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def strip_non_alloc
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: Flag<["--"], "strip-non-alloc">,
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HelpText<"Remove all non-allocated sections that are not within segments">;
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defm strip_unneeded_symbol
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: Eq<"strip-unneeded-symbol",
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"Remove all symbols named <symbol> that are local or undefined and "
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"are not required by any relocation">,
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MetaVarName<"symbol">;
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defm strip_unneeded_symbols
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: Eq<"strip-unneeded-symbols",
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"Remove all symbols whose names appear in the file <file>, if they "
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"are local or undefined and are not required by any relocation">,
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MetaVarName<"filename">;
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defm subsystem
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: Eq<"subsystem",
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"Set the PE subsystem, and optionally subsystem version">,
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MetaVarName<"name[:version]">, Group<grp_coff>;
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def extract_dwo
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: Flag<["--"], "extract-dwo">,
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HelpText<
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"Remove all sections that are not DWARF .dwo sections from file">;
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defm extract_partition
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: Eq<"extract-partition", "Extract named partition from input file">,
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MetaVarName<"name">;
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def extract_main_partition
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: Flag<["--"], "extract-main-partition">,
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HelpText<"Extract main partition from the input file">;
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def localize_hidden
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: Flag<["--"], "localize-hidden">,
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HelpText<
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"Mark all symbols that have hidden or internal visibility as local">;
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defm localize_symbol
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: Eq<"localize-symbol", "Mark any defined non-common symbol named <symbol> as local">,
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MetaVarName<"symbol">;
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defm localize_symbols
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: Eq<"localize-symbols",
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"Read a list of names from <filename> and mark any defined non-common "
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"symbols with those names as local">,
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MetaVarName<"filename">;
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def L : JoinedOrSeparate<["-"], "L">,
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Alias<localize_symbol>,
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HelpText<"Alias for --localize-symbol">;
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defm globalize_symbol : Eq<"globalize-symbol", "Mark <symbol> as global">,
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MetaVarName<"symbol">;
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defm globalize_symbols
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: Eq<"globalize-symbols",
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"Read a list of symbols from <filename> and mark defined symbols"
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" with those names as global">,
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MetaVarName<"filename">;
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defm keep_global_symbol
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: Eq<"keep-global-symbol",
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"Mark all symbols local, except for symbols with the name <symbol>. "
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"Can be specified multiple times to ignore multiple symbols">,
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MetaVarName<"symbol">;
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def G : JoinedOrSeparate<["-"], "G">,
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Alias<keep_global_symbol>,
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HelpText<"Alias for --keep-global-symbol">;
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defm verify_note_sections : B<"verify-note-sections",
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"Validate note sections",
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"Don't validate note sections">;
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defm keep_global_symbols
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: Eq<"keep-global-symbols",
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"Read a list of symbols from <filename> and run as if "
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"--keep-global-symbol=<symbol> is set for each one. <filename> "
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"contains one symbol per line and may contain comments beginning with "
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"'#'. Leading and trailing whitespace is stripped from each line. May "
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"be repeated to read symbols from many files">,
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MetaVarName<"filename">;
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defm weaken_symbol : Eq<"weaken-symbol", "Mark global symbols named <symbol> as weak">,
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MetaVarName<"symbol">;
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defm weaken_symbols
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: Eq<"weaken-symbols",
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"Read a list of symbols from <filename> and mark global symbols with those names as weak">,
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MetaVarName<"filename">;
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def W : JoinedOrSeparate<["-"], "W">,
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Alias<weaken_symbol>,
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HelpText<"Alias for --weaken-symbol">;
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def weaken : Flag<["--"], "weaken">,
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HelpText<"Mark all defined global symbols as weak">;
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defm strip_symbols
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: Eq<"strip-symbols",
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"Remove all symbols whose names appear in the file <filename>">,
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MetaVarName<"filename">;
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defm keep_symbols
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: Eq<"keep-symbols",
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"Read a list of symbols from <filename> and run as if "
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"--keep-symbol=<symbol> is set for each one. <filename> "
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"contains one symbol per line and may contain comments beginning with "
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"'#'. Leading and trailing whitespace is stripped from each line. May "
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"be repeated to read symbols from many files">,
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MetaVarName<"filename">;
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defm skip_symbol : Eq<"skip-symbol", "Do not change parameters of symbol <symbol> "
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"when executing other options that can change the symbol's "
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"name, binding or visibility">,
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MetaVarName<"symbol">;
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defm skip_symbols
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: Eq<"skip-symbols",
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"Read a list of symbols from <filename> and run as if "
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"--skip-symbol=<symbol> is set for each one. <filename> "
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"contains one symbol per line and may contain comments beginning with "
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"'#'. Leading and trailing whitespace is stripped from each line. May "
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"be repeated to read symbols from many files">,
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MetaVarName<"filename">;
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defm dump_section
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: Eq<"dump-section",
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"Dump contents of section named <section> into file <file>">,
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MetaVarName<"section=file">;
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defm prefix_symbols
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: Eq<"prefix-symbols", "Add <prefix> to the start of every symbol name">,
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MetaVarName<"prefix">;
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defm remove_symbol_prefix
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: Eq<"remove-symbol-prefix",
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"Remove <prefix> from the start of every symbol name. No-op for symbols that do not start "
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"with <prefix>">,
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MetaVarName<"prefix">;
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defm prefix_alloc_sections
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: Eq<"prefix-alloc-sections", "Add <prefix> to the start of every allocated section name">,
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MetaVarName<"prefix">;
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defm set_start : Eq<"set-start", "Set the start address to <addr>. Overrides "
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"any previous --change-start or --adjust-start values">,
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MetaVarName<"addr">;
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defm change_start : Eq<"change-start", "Add <incr> to the start address. Can be "
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"specified multiple times, all values will be applied "
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"cumulatively">,
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MetaVarName<"incr">;
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def adjust_start : JoinedOrSeparate<["--"], "adjust-start">,
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Alias<change_start>,
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HelpText<"Alias for --change-start">;
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defm change_section_lma
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: Eq<"change-section-lma", "Shift LMA of non-zero-sized sections in the program header by <val>">,
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MetaVarName<"*{+|-}val">;
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defm change_section_address
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: Eq<"change-section-address", "Set the address of the <section> to, or adjust it by, <val>">,
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MetaVarName<"sectionpattern{=|+|-}val">;
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def adjust_section_vma : JoinedOrSeparate<["--"], "adjust-section-vma">,
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Alias<change_section_address>,
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HelpText<"Alias for --change-section-address">;
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defm add_symbol
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: Eq<"add-symbol", "Add new symbol <name> to .symtab. Accepted flags: "
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"global, local, weak, default, hidden, protected, file, section, object, "
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"function, indirect-function. Accepted but ignored for "
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"compatibility: debug, constructor, warning, indirect, synthetic, "
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"unique-object, before">,
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MetaVarName<"name=[section:]value[,flags]">;
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defm update_section
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: Eq<"update-section", "Replace the contents of section <name> with contents from a file <file>">,
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MetaVarName<"name=file">;
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defm gap_fill
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: Eq<"gap-fill", "Fill the gaps between sections with <value> instead of zero. "
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"<value> must be an unsigned 8-bit integer. "
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"This option is only supported for ELF input and binary output">,
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MetaVarName<"value">;
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defm pad_to
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: Eq<"pad-to", "Pad the output up to the load address <address>, using a value "
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"of zero or the value specified by the --gap-fill option. "
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"This option is only supported for ELF input and binary output">,
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MetaVarName<"address">;
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