commit 2d4d1615197efeb044f62d6a8721704839cd5337
author Tim Northover <tnorthover@apple.com> Wed Oct 28 22:36:05 2015 +0000
committer Tim Northover <tnorthover@apple.com> Wed Oct 28 22:36:05 2015 +0000
tree 80c103f916b365a001660bd021d2130c367b34b9
parent 748b3ffe3b8d83e2405e41c572cc19bc9f211053

ARM: support .watchos_version_min and .tvos_version_min.

These MachO file directives are used by linkers and other tools to provide
compatibility information, much like the existing .ios_version_min and
.macosx_version_min.

llvm-svn: 251569

llvm/lib/MC/MachObjectWriter.cpp

diff --git a/llvm/lib/MC/MachObjectWriter.cpp b/llvm/lib/MC/MachObjectWriter.cpp
index 17023d8..324385f 100644
--- a/llvm/lib/MC/MachObjectWriter.cpp
+++ b/llvm/lib/MC/MachObjectWriter.cpp
@@ -815,8 +815,22 @@
     assert(VersionInfo.Major < 65536 && "unencodable major target version");
     uint32_t EncodedVersion = VersionInfo.Update | (VersionInfo.Minor << 8) |
       (VersionInfo.Major << 16);
-    write32(VersionInfo.Kind == MCVM_OSXVersionMin ? MachO::LC_VERSION_MIN_MACOSX :
-            MachO::LC_VERSION_MIN_IPHONEOS);
+    MachO::LoadCommandType LCType;
+    switch (VersionInfo.Kind) {
+    case MCVM_OSXVersionMin:
+      LCType = MachO::LC_VERSION_MIN_MACOSX;
+      break;
+    case MCVM_IOSVersionMin:
+      LCType = MachO::LC_VERSION_MIN_IPHONEOS;
+      break;
+    case MCVM_TvOSVersionMin:
+      LCType = MachO::LC_VERSION_MIN_TVOS;
+      break;
+    case MCVM_WatchOSVersionMin:
+      LCType = MachO::LC_VERSION_MIN_WATCHOS;
+      break;
+    }
+    write32(LCType);
     write32(sizeof(MachO::version_min_command));
     write32(EncodedVersion);
     write32(0);         // reserved.