clang/llvm: Add OE specific ABI triple for N32 ABI

Its gnun32 when using OE

Upstream-Status: Inappropriate [OE-Specific]
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Author: kraj

clang/lib/Driver/ToolChains/Gnu.cpp

@@ -2413,6 +2413,7 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
 
   static const char *const MIPSN32LibDirs[] = {"/lib32"};
   static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
+                                               "mips64-linux-gnun32",
                                                "mipsisa64r6-linux-gnuabin32"};
   static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
   static const char *const MIPSN32ELTriples[] = {

clang/lib/Driver/ToolChains/Linux.cpp

@@ -138,7 +138,7 @@ std::string Linux::getMultiarchTriple(const Driver &D,
     return IsMipsR6 ? "mipsisa32r6el-linux-gnu" : "mipsel-linux-gnu";
   case llvm::Triple::mips64: {
     std::string MT = std::string(IsMipsR6 ? "mipsisa64r6" : "mips64") +
-                     "-linux-" + (IsMipsN32Abi ? "gnuabin32" : "gnuabi64");
+                     "-linux-" + (IsMipsN32Abi ? "gnun32" : "gnu");
     if (D.getVFS().exists(concat(SysRoot, "/lib", MT)))
       return MT;
     if (D.getVFS().exists(concat(SysRoot, "/lib/mips64-linux-gnu")))
@@ -147,7 +147,7 @@ std::string Linux::getMultiarchTriple(const Driver &D,
   }
   case llvm::Triple::mips64el: {
     std::string MT = std::string(IsMipsR6 ? "mipsisa64r6el" : "mips64el") +
-                     "-linux-" + (IsMipsN32Abi ? "gnuabin32" : "gnuabi64");
+                     "-linux-" + (IsMipsN32Abi ? "gnun32" : "gnu");
     if (D.getVFS().exists(concat(SysRoot, "/lib", MT)))
       return MT;
     if (D.getVFS().exists(concat(SysRoot, "/lib/mips64el-linux-gnu")))

llvm/lib/TargetParser/Triple.cpp

@@ -338,7 +338,7 @@ StringRef Triple::getEnvironmentTypeName(EnvironmentType Kind) {
   case GNU: return "gnu";
   case GNUT64: return "gnut64";
   case GNUABI64: return "gnuabi64";
-  case GNUABIN32: return "gnuabin32";
+  case GNUABIN32: return "gnun32";
   case GNUEABI: return "gnueabi";
   case GNUEABIT64: return "gnueabit64";
   case GNUEABIHF: return "gnueabihf";
@@ -724,6 +724,7 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
       .StartsWith("eabihf", Triple::EABIHF)
       .StartsWith("eabi", Triple::EABI)
       .StartsWith("gnuabin32", Triple::GNUABIN32)
+      .StartsWith("gnun32", Triple::GNUABIN32)
       .StartsWith("gnuabi64", Triple::GNUABI64)
       .StartsWith("gnueabihft64", Triple::GNUEABIHFT64)
       .StartsWith("gnueabihf", Triple::GNUEABIHF)
@@ -1038,6 +1039,7 @@ Triple::Triple(std::string &&Str) : Data(std::move(Str)) {
       Environment =
           StringSwitch<Triple::EnvironmentType>(Components[0])
               .StartsWith("mipsn32", Triple::GNUABIN32)
+              .StartsWith("mips64-n32", Triple::GNUABIN32)
               .StartsWith("mips64", Triple::GNUABI64)
               .StartsWith("mipsisa64", Triple::GNUABI64)
               .StartsWith("mipsisa32", Triple::GNU)