[ELF] - Add separate form for -R alias.

During link of devel/chrpath (FreeBSD port), found next issue:
/usr/bin/ld: error: unclosed comment in a linker script
/usr/bin/ld: error: line 1: unknown directive: �
/usr/bin/ld: error: �\16�

Problem was not obvious and the reason was that we did not accept
the separate form of -R. While invocation line contained it:
cc -Wl,-R /usr/local/lib -o prog prog.c

CPIO file produced contained /usr/local/lib file.
Which looks because of reasons above
contained inside the content of whole lib folder,
and it then was passed as an input and
proccessed as linker script.

llvm-svn: 286378

diff --git a/lld/ELF/Options.td b/lld/ELF/Options.td
index a0ec920..c87c7c5 100644 (file)
--- a/lld/ELF/Options.td
+++ b/lld/ELF/Options.td
@@ -244,7 +244,7 @@ def alias_o_output: Joined<["--"], "output=">, Alias<o>;
 def alias_o_output2 : Separate<["--"], "output">, Alias<o>;
 def alias_pie_pic_executable: F<"pic-executable">, Alias<pie>;
 def alias_relocatable_r: Flag<["-"], "r">, Alias<relocatable>;
-def alias_rpath_R: Joined<["-"], "R">, Alias<rpath>;
+def alias_rpath_R: JoinedOrSeparate<["-"], "R">, Alias<rpath>;
 def alias_rpath_rpath: J<"rpath=">, Alias<rpath>;
 def alias_script_T: JoinedOrSeparate<["-"], "T">, Alias<script>;
 def alias_shared_Bshareable: F<"Bshareable">, Alias<shared>;