BareMetal: Auto-detect IAR EW toolchain for MSP430 architecture

Also we introduce the new 'msp430' architecture in
ProjectExplorer::Abi.

Change-Id: Ifb857abb29d78396b0d55a4604511951597f4415
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/baremetal/iarewtoolchain.cpp

@@ -71,8 +71,10 @@ static QString cppLanguageOption(const FilePath &compiler)
     const QString baseName = compiler.toFileInfo().baseName();
     if (baseName == "iccarm")
         return QString("--c++");
-    if (baseName == "icc8051" || baseName == "iccavr" || baseName == "iccstm8")
+    if (baseName == "icc8051" || baseName == "iccavr"
+            || baseName == "iccstm8" || baseName == "icc430") {
         return QString("--ec++");
+    }
     return {};
 }
 
@@ -191,6 +193,8 @@ static Abi::Architecture guessArchitecture(const Macros &macros)
             return Abi::Architecture::AvrArchitecture;
         if (macro.key == "__ICCSTM8__")
             return Abi::Architecture::Stm8Architecture;
+        if (macro.key == "__ICC430__")
+            return Abi::Architecture::Msp430Architecture;
     }
     return Abi::Architecture::UnknownArchitecture;
 }
@@ -212,7 +216,8 @@ static Abi::BinaryFormat guessFormat(Abi::Architecture arch)
         return Abi::BinaryFormat::ElfFormat;
     }
     if (arch == Abi::Architecture::Mcs51Architecture
-            || arch == Abi::Architecture::AvrArchitecture) {
+            || arch == Abi::Architecture::AvrArchitecture
+            || arch == Abi::Architecture::Msp430Architecture) {
         return Abi::BinaryFormat::UbrofFormat;
     }
     return Abi::BinaryFormat::UnknownFormat;
@@ -431,6 +436,7 @@ QList<ToolChain *> IarToolChainFactory::autoDetect(const QList<ToolChain *> &alr
         {{"EWAVR"}, {"\\avr\\bin\\iccavr.exe"}},
         {{"EW8051"}, {"\\8051\\bin\\icc8051.exe"}},
         {{"EWSTM8"}, {"\\stm8\\bin\\iccstm8.exe"}},
+        {{"EW430"}, {"\\430\\bin\\icc430.exe"}},
     };
 
     QSettings registry(kRegistryNode, QSettings::NativeFormat);

src/plugins/projectexplorer/abi.cpp

@@ -693,6 +693,8 @@ QString Abi::toString(const Architecture &a)
         return QLatin1String("asmjs");
     case Stm8Architecture:
         return QLatin1String("stm8");
+    case Msp430Architecture:
+        return QLatin1String("msp430");
     case UnknownArchitecture:
         Q_FALLTHROUGH();
     default:
@@ -831,6 +833,8 @@ Abi::Architecture Abi::architectureFromString(const QStringRef &a)
         return ShArchitecture;
     if (a == "stm8")
         return Stm8Architecture;
+    if (a == "msp430")
+        return Msp430Architecture;
     else if (a == "xtensa")
         return XtensaArchitecture;
     if (a == "asmjs")

src/plugins/projectexplorer/abi.h

@@ -60,6 +60,7 @@ public:
         Mcs51Architecture,
         AsmJsArchitecture,
         Stm8Architecture,
+        Msp430Architecture,
         UnknownArchitecture
     };