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[lld][ELF][Cleanup] Create multiclass for variations in options usage 

llvm-svn: 189197
This commit is contained in:
Shankar Easwaran 2013-08-25 18:05:15 +00:00
parent be81dd757e
commit 0f2a45cac5
2 changed files with 12 additions and 11 deletions
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2
lld/lib/Driver/GnuLdDriver.cpp
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@ -170,7 +170,7 @@ bool GnuLdDriver::parse(int argc, const char *argv[],
ctx->setAllowShlibUndefines(true);
ctx->setUseShlibUndefines(false);
break;
case OPT_entry:
case OPT_e:
ctx->setEntrySymbolName(inputArg->getValue());
break;

21
lld/lib/Driver/LDOptions.td
View File

@ -6,10 +6,16 @@ def target : Separate<["-"], "target">,
def mllvm : Separate<["-"], "mllvm">, HelpText<"Options to pass to LLVM">;
// Single and multiple dash options combined
multiclass smDash<string opt1, string opt2, string help> {
def "" : Separate<["-"], opt1>, HelpText<help>;
def opt1_eq : Separate<["-"], opt1#"=">, Alias<!cast<Option>(opt1)>;
def opt2_dashdash : Separate<["--"], opt2>, Alias<!cast<Option>(opt1)>;
def opt2_dashdash_eq : Separate<["--"], opt2#"=">, Alias<!cast<Option>(opt1)>;
}
def entry : Joined<["--"], "entry=">,
HelpText<"Name of entry point symbol">;
def entry_e : Separate<["-"], "e">, Alias<entry>;
defm e : smDash<"e", "entry",
"Name of entry point symbol">;
def output : Separate<["-"], "o">,
MetaVarName<"<path>">,
@ -72,13 +78,8 @@ def omagic_alias : Flag<["-"], "N">, Alias<omagic>;
def no_omagic : Flag<["--"], "no-omagic">,
HelpText<"This option negates most of the effects of the -N option. Disable linking with shared libraries">;
// TODO: remove the options with the = sign, once the change in the OptionParser
// is done to recognize the allowed suffixes for an argument.
def u : Separate<["-"], "u">,
HelpText<"Force symbol to be entered in the output file as an undefined symbol">;
def undefined : Separate<["--"], "undefined">, Alias<u>;
def u_equal : Joined<["-"], "u=">, Alias<u>;
def undefined_equal : Joined<["--"], "undefined=">, Alias<u>;
defm u : smDash<"u", "undefined",
"Force symbol to be entered in the output file as an undefined symbol">;
def as_needed : Flag<["--"], "as-needed">,
HelpText<"This option affects ELF DT_NEEDED tags for dynamic libraries mentioned on the command line">;