[lld] [lld] Adds support for xros. (PR #83031)

[via llvm-commits]

https://github.com/rohit-rao created https://github.com/llvm/llvm-project/pull/83031

None

>From 6293ab8f5e654929cf42ed6e978d230cfb16c9dc Mon Sep 17 00:00:00 2001
From: Rohit Rao <rohitrao at google.com>
Date: Mon, 26 Feb 2024 11:46:24 -0500
Subject: [PATCH] [lld] Adds support for xros.

---
 lld/MachO/Driver.cpp | 19 +++++++++++++------
 lld/MachO/Options.td |  2 +-
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/lld/MachO/Driver.cpp b/lld/MachO/Driver.cpp
index a57f60c5eed36b..16478d41cd3683 100644
--- a/lld/MachO/Driver.cpp
+++ b/lld/MachO/Driver.cpp
@@ -691,6 +691,8 @@ static PlatformVersion parsePlatformVersion(const Arg *arg) {
           .Cases("tvos-simulator", "8", PLATFORM_TVOSSIMULATOR)
           .Cases("watchos-simulator", "9", PLATFORM_WATCHOSSIMULATOR)
           .Cases("driverkit", "10", PLATFORM_DRIVERKIT)
+          .Cases("xros", "11", PLATFORM_XROS)
+          .Cases("xros-simulator", "12", PLATFORM_XROS_SIMULATOR)
           .Default(PLATFORM_UNKNOWN);
   if (platformVersion.platform == PLATFORM_UNKNOWN)
     error(Twine("malformed platform: ") + platformStr);
@@ -985,6 +987,8 @@ PlatformType macho::removeSimulator(PlatformType platform) {
     return PLATFORM_TVOS;
   case PLATFORM_WATCHOSSIMULATOR:
     return PLATFORM_WATCHOS;
+  case PLATFORM_XROS_SIMULATOR:
+    return PLATFORM_XROS;
   default:
     return platform;
   }
@@ -1001,15 +1005,17 @@ static bool shouldAdhocSignByDefault(Architecture arch, PlatformType platform) {
 
   return platform == PLATFORM_MACOS || platform == PLATFORM_IOSSIMULATOR ||
          platform == PLATFORM_TVOSSIMULATOR ||
-         platform == PLATFORM_WATCHOSSIMULATOR;
+         platform == PLATFORM_WATCHOSSIMULATOR ||
+         platform == PLATFORM_XROS_SIMULATOR;
 }
 
 static bool dataConstDefault(const InputArgList &args) {
-  static const std::array<std::pair<PlatformType, VersionTuple>, 5> minVersion =
+  static const std::array<std::pair<PlatformType, VersionTuple>, 6> minVersion =
       {{{PLATFORM_MACOS, VersionTuple(10, 15)},
         {PLATFORM_IOS, VersionTuple(13, 0)},
         {PLATFORM_TVOS, VersionTuple(13, 0)},
         {PLATFORM_WATCHOS, VersionTuple(6, 0)},
+        {PLATFORM_XROS, VersionTuple(1, 0)},
         {PLATFORM_BRIDGEOS, VersionTuple(4, 0)}}};
   PlatformType platform = removeSimulator(config->platformInfo.target.Platform);
   auto it = llvm::find_if(minVersion,
@@ -1045,11 +1051,12 @@ static bool shouldEmitChainedFixups(const InputArgList &args) {
   bool isRequested = arg != nullptr;
 
   // Version numbers taken from the Xcode 13.3 release notes.
-  static const std::array<std::pair<PlatformType, VersionTuple>, 4> minVersion =
+  static const std::array<std::pair<PlatformType, VersionTuple>, 5> minVersion =
       {{{PLATFORM_MACOS, VersionTuple(11, 0)},
         {PLATFORM_IOS, VersionTuple(13, 4)},
         {PLATFORM_TVOS, VersionTuple(14, 0)},
-        {PLATFORM_WATCHOS, VersionTuple(7, 0)}}};
+        {PLATFORM_WATCHOS, VersionTuple(7, 0)},
+        {PLATFORM_XROS, VersionTuple(1, 0)}}};
   PlatformType platform = removeSimulator(config->platformInfo.target.Platform);
   auto it = llvm::find_if(minVersion,
                           [&](const auto &p) { return p.first == platform; });
@@ -1688,8 +1695,8 @@ bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
   if (args.getLastArg(OPT_reproducible))
     config->zeroModTime = true;
 
-  std::array<PlatformType, 3> encryptablePlatforms{
-      PLATFORM_IOS, PLATFORM_WATCHOS, PLATFORM_TVOS};
+  std::array<PlatformType, 4> encryptablePlatforms{
+    PLATFORM_IOS, PLATFORM_WATCHOS, PLATFORM_TVOS, PLATFORM_XROS};
   config->emitEncryptionInfo =
       args.hasFlag(OPT_encryptable, OPT_no_encryption,
                    is_contained(encryptablePlatforms, config->platform()));
diff --git a/lld/MachO/Options.td b/lld/MachO/Options.td
index 01e73b789f9aab..a524e4a4c50841 100644
--- a/lld/MachO/Options.td
+++ b/lld/MachO/Options.td
@@ -377,7 +377,7 @@ def grp_version : OptionGroup<"version">, HelpText<"VERSION TARGETING">;
 
 def platform_version : MultiArg<["-"], "platform_version", 3>,
     MetaVarName<"<platform> <min_version> <sdk_version>">,
-    HelpText<"Platform (e.g., macos, ios, tvos, watchos, bridgeos, mac-catalyst, ios-sim, tvos-sim, watchos-sim, driverkit) and version numbers">,
+    HelpText<"Platform (e.g., macos, ios, tvos, watchos, xros, bridgeos, mac-catalyst, ios-sim, tvos-sim, watchos-sim, xros-sim, driverkit) and version numbers">,
     Group<grp_version>;
 def sdk_version : Separate<["-"], "sdk_version">,
     HelpText<"This option is undocumented in ld64">,