[lld] r310998 - [ELF/LTO] -function-sections/-data-sections are exact options.

[Davide Italiano via llvm-commits]

Author: davide
Date: Wed Aug 16 01:21:04 2017
New Revision: 310998

URL: http://llvm.org/viewvc/llvm-project?rev=310998&view=rev
Log:
[ELF/LTO] -function-sections/-data-sections are exact options.

Also add a test. This fixes r310995 and PR34200.

Modified:
    lld/trunk/ELF/Driver.cpp
    lld/trunk/test/ELF/lto-plugin-ignore.s

Modified: lld/trunk/ELF/Driver.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Driver.cpp?rev=310998&r1=310997&r2=310998&view=diff
==============================================================================
--- lld/trunk/ELF/Driver.cpp (original)
+++ lld/trunk/ELF/Driver.cpp Wed Aug 16 01:21:04 2017
@@ -716,8 +716,8 @@ void LinkerDriver::readConfigs(opt::Inpu
       Config->ThinLTOJobs = parseInt(S.substr(5), Arg);
     else if (!S.startswith("/") && !S.startswith("-fresolution=") &&
              !S.startswith("-pass-through=") && !S.startswith("mcpu=") &&
-             !S.startswith("thinlto") && !S.startswith("-function-sections") &&
-             !S.startswith("-data-sections"))
+             !S.startswith("thinlto") && S != "-function-sections" &&
+             S != "-data-sections")
       error(Arg->getSpelling() + ": unknown option: " + S);
   }
 

Modified: lld/trunk/test/ELF/lto-plugin-ignore.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/lto-plugin-ignore.s?rev=310998&r1=310997&r2=310998&view=diff
==============================================================================
--- lld/trunk/test/ELF/lto-plugin-ignore.s (original)
+++ lld/trunk/test/ELF/lto-plugin-ignore.s Wed Aug 16 01:21:04 2017
@@ -2,4 +2,10 @@
 
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: ld.lld %t -plugin-opt=/foo/bar -plugin-opt=-fresolution=zed \
-# RUN:   -plugin-opt=-pass-through=-lgcc -o /dev/null
+# RUN:   -plugin-opt=-pass-through=-lgcc -plugin-opt=-function-sections \
+# RUN:   -plugin-opt=-data-sections -o /dev/null
+
+# RUN: not ld.lld %t -plugin-opt=-data-sectionssss \
+# RUN:   -plugin-opt=-function-sectionsss 2>&1 | FileCheck %s
+# CHECK: unknown option: -data-sectionsss
+# CHECK: unknown option: -function-sectionsss