bare-metal: Implement cpp.compilerDefinesByLanguage for IAR toolchain

Change-Id: Id18528b1f6f6a98bec3f877e70c660180078a66c
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

2 files changed, 9 insertions, 6 deletions

diff --git a/share/qbs/modules/cpp/iar.js b/share/qbs/modules/cpp/iar.js
index 35ed29da3..cf4577c6a 100644
--- a/share/qbs/modules/cpp/iar.js
+++ b/share/qbs/modules/cpp/iar.js
@@ -56,16 +56,18 @@ function guessEndianness(macros)
     return "big"
 }
 
-function dumpMacros(compilerFilePath, qbs, nullDevice) {
+function dumpMacros(compilerFilePath, tag) {
     var tempDir = new TemporaryDir();
     var inFilePath = FileInfo.fromNativeSeparators(tempDir.path() + "/empty-source.c");
     var inFile = new TextFile(inFilePath, TextFile.WriteOnly);
     var outFilePath = FileInfo.fromNativeSeparators(tempDir.path() + "/iar-macros.predef");
-    var p = new Process();
 
-    p.exec(compilerFilePath,
-           [ inFilePath, "--predef_macros", outFilePath ],
-           true);
+    var args = [ inFilePath, "--predef_macros", outFilePath ];
+    if (tag && tag === "cpp")
+        args.push("--ec++");
+
+    var p = new Process();
+    p.exec(compilerFilePath, args, true);
     var outFile = new TextFile(outFilePath, TextFile.ReadOnly);
     var map = {};
     outFile.readAll().trim().split(/\r?\n/g).map(function (line) {
diff --git a/share/qbs/modules/cpp/iar.qbs b/share/qbs/modules/cpp/iar.qbs
index 3dea255db..05a76c6b5 100644
--- a/share/qbs/modules/cpp/iar.qbs
+++ b/share/qbs/modules/cpp/iar.qbs
@@ -50,6 +50,7 @@ CppModule {
         id: iarProbe
         condition: !_skipAllChecks
         compilerFilePath: compilerPath
+        enableDefinesByLanguage: enableCompilerDefinesByLanguage
     }
 
     qbs.architecture: iarProbe.found ? iarProbe.architecture : original
@@ -59,7 +60,7 @@ CppModule {
     compilerVersionPatch: iarProbe.versionPatch
     endianness: iarProbe.endianness
 
-    compilerDefinesByLanguage: []
+    compilerDefinesByLanguage: iarProbe.compilerDefinesByLanguage
 
     property string toolchainInstallPath: compilerPathProbe.found
         ? compilerPathProbe.path : undefined