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[lld-macho] Implement -fatal_warnings

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Differential Revision: https://reviews.llvm.org/D91894
This commit is contained in:
Nico Weber 2020-11-20 16:44:55 -05:00
parent bfd2c216ea
commit c0e4020c92
3 changed files with 18 additions and 2 deletions
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4
lld/MachO/DriverUtils.cpp
View File

@ -76,6 +76,10 @@ opt::InputArgList MachOOptTable::parse(ArrayRef<const char *> argv) {
cl::ExpandResponseFiles(saver, cl::TokenizeGNUCommandLine, vec);
opt::InputArgList args = ParseArgs(vec, missingIndex, missingCount);
// Handle -fatal_warnings early since it converts missing argument warnings
// to errors.
errorHandler().fatalWarnings = args.hasArg(OPT_fatal_warnings);
if (missingCount)
error(Twine(args.getArgString(missingIndex)) + ": missing argument");

3
lld/MachO/Options.td
View File

@ -610,8 +610,7 @@ def no_application_extension : Flag<["-"], "no_application_extension">,
Flags<[HelpHidden]>,
Group<grp_rare>;
def fatal_warnings : Flag<["-"], "fatal_warnings">,
HelpText<"Escalate warnings as errors">,
Flags<[HelpHidden]>,
HelpText<"Treat warnings as errors">,
Group<grp_rare>;
def no_eh_labels : Flag<["-"], "no_eh_labels">,
HelpText<"In -r mode, suppress .eh labels in the __eh_frame section">,

13
lld/test/MachO/fatal-warnings.s Normal file
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@ -0,0 +1,13 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t1.o
# RUN: %lld %t1.o -o /dev/null -single_module 2>&1 \
# RUN: | FileCheck -check-prefix=WARNING %s
# RUN: not %lld %t1.o -fatal_warnings -o /dev/null -single_module 2>&1 \
# RUN: | FileCheck -check-prefix=ERROR %s
# ERROR: error: Option `-single_module' is deprecated
# WARNING: warning: Option `-single_module' is deprecated
.globl _main
_main: