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Parse and store the value of the -O option.

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llvm-svn: 251136
This commit is contained in:
Rafael Espindola
2015-10-23 19:02:19 +00:00
parent 3fef117ba5
commit 2c1217d82a
3 changed files with 9 additions and 1 deletions
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1
lld/ELF/Config.h
View File

@@ -66,6 +66,7 @@ struct Configuration {
ELFKind EKind = ELFNoneKind;
uint16_t EMachine = llvm::ELF::EM_NONE;
uint64_t EntryAddr = -1;
unsigned Optimize = 0;
};
extern Configuration *Config;

6
lld/ELF/Driver.cpp
View File

@@ -156,6 +156,12 @@ void LinkerDriver::createFiles(opt::InputArgList &Args) {
Config->SoName = getString(Args, OPT_soname);
Config->Sysroot = getString(Args, OPT_sysroot);
if (auto *Arg = Args.getLastArg(OPT_O)) {
StringRef Val = Arg->getValue();
if (Val.getAsInteger(10, Config->Optimize))
error("Invalid optimization level");
}
if (auto *Arg = Args.getLastArg(OPT_hash_style)) {
StringRef S = Arg->getValue();
if (S == "gnu") {

3
lld/ELF/Options.td
View File

@@ -12,6 +12,8 @@ def Bstatic: Flag<["-"], "Bstatic">,
def L : Joined<["-"], "L">, MetaVarName<"<dir>">,
HelpText<"Directory to search for libraries">;
def O : Joined<["-"], "O">, HelpText<"Optimize">;
def allow_multiple_definition: Flag<["--"], "allow-multiple-definition">,
HelpText<"Allow multiple definitions">;
@@ -125,7 +127,6 @@ def alias_script_T : Separate<["-"], "T">, Alias<script>;
def alias_undefined_u : Separate<["-"], "u">, Alias<undefined>;
// Options listed below are silently ignored now.
def O3 : Flag<["-"], "O3">;
def build_id : Flag<["--"], "build-id">;
def eh_frame_hdr : Flag<["--"], "eh-frame-hdr">;
def end_group : Flag<["--"], "end-group">;