From e133cd2ea2089cc1860e687a6946d102b90f8dfb Mon Sep 17 00:00:00 2001 From: Jim Grosbach Date: Tue, 18 Mar 2014 22:09:08 +0000 Subject: [PATCH] MachO: Emit a version-min load command when possible. When deployment target version information is available, emit it to the target streamer for inclusion in the object file. rdar://11337778 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204191 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp index 81316625704..086b08173eb 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp @@ -178,6 +178,25 @@ bool AsmPrinter::doInitialization(Module &M) { Mang = new Mangler(TM.getDataLayout()); + // Emit the version-min deplyment target directive if needed. + // + // FIXME: If we end up with a collection of these sorts of Darwin-specific + // or ELF-specific things, it may make sense to have a platform helper class + // that will work with the target helper class. For now keep it here, as the + // alternative is duplicated code in each of the target asm printers that + // use the directive, where it would need the same conditionalization + // anyway. + Triple TT(getTargetTriple()); + if (TT.isOSDarwin()) { + unsigned Major, Minor, Update; + TT.getOSVersion(Major, Minor, Update); + // If there is a version specified, Major will be non-zero. + if (Major) + OutStreamer.EmitVersionMin((TT.isMacOSX() ? + MCVM_OSXVersionMin : MCVM_IOSVersionMin), + Major, Minor, Update); + } + // Allow the target to emit any magic that it wants at the start of the file. EmitStartOfAsmFile(M); -- 2.34.1