[PATCH] D146399: [AIX][Clang][K] Create `-K` Option for AIX.

[Michael Francis via Phabricator via cfe-commits]

francii created this revision.
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francii requested review of this revision.
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Herald added a project: clang.

`-K` is a linker option on AIX, that is used to align the header, text, data, and loader sections of the output file so
that each section begins on a page boundary.

This patch creates the `-K` option in clang.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146399

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp


Index: clang/lib/Driver/ToolChains/Clang.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Clang.cpp
+++ clang/lib/Driver/ToolChains/Clang.cpp
@@ -6328,6 +6328,10 @@
     }
   }
 
+  if (Arg *A = Args.getLastArgNoClaim(options::OPT_K); A && !TC.getTriple().isOSAIX())
+    D.Diag(diag::err_drv_unsupported_opt_for_target)
+      << A->getAsString(Args) << TripleStr;
+
   if (Args.getLastArg(options::OPT_fapple_kext) ||
       (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType)))
     CmdArgs.push_back("-fapple-kext");
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -3405,6 +3405,7 @@
   HelpText<"Overlay the virtual filesystem described by file over the real file system. "
            "Additionally, pass this overlay file to the linker if it supports it">;
 def imultilib : Separate<["-"], "imultilib">, Group<gfortran_Group>;
+def K : Flag<["-"], "K">, Flags<[LinkerInput,NoArgumentUnused]>;
 def keep__private__externs : Flag<["-"], "keep_private_externs">;
 def l : JoinedOrSeparate<["-"], "l">, Flags<[LinkerInput, RenderJoined]>,
         Group<Link_Group>;


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