baremetal: Auto-detect GNU ARM toolchains on Windows

... which are installed from this site:

https: //developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm

Change-Id: Ic7e8886e53ede7b86289ef514eccd94870e17676
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 37 insertions, 1 deletions

diff --git a/src/app/qbs-setup-toolchains/gccprobe.cpp b/src/app/qbs-setup-toolchains/gccprobe.cpp
index de6631cfd..4eee804c6 100644
--- a/src/app/qbs-setup-toolchains/gccprobe.cpp
+++ b/src/app/qbs-setup-toolchains/gccprobe.cpp
@@ -259,6 +259,41 @@ static QStringList buildCompilerNameFilters(const QString &compilerName)
     return filters;
 }
 
+static QStringList gnuRegistrySearchPaths()
+{
+    if (!HostOsInfo::isWindowsHost())
+        return {};
+
+    // Registry token for the "GNU Tools for ARM Embedded Processors".
+    static const char kRegistryToken[] = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\" \
+                                         "Windows\\CurrentVersion\\Uninstall\\";
+
+    QStringList searchPaths;
+
+    QSettings registry(QLatin1String(kRegistryToken), QSettings::NativeFormat);
+    const auto productGroups = registry.childGroups();
+    for (const QString &productKey : productGroups) {
+        if (!productKey.startsWith(
+                    QLatin1String("GNU Tools for ARM Embedded Processors"))) {
+            continue;
+        }
+        registry.beginGroup(productKey);
+        QString uninstallFilePath = registry.value(
+                    QLatin1String("UninstallString")).toString();
+        if (uninstallFilePath.startsWith(QLatin1Char('"')))
+            uninstallFilePath.remove(0, 1);
+        if (uninstallFilePath.endsWith(QLatin1Char('"')))
+            uninstallFilePath.remove(uninstallFilePath.size() - 1, 1);
+        registry.endGroup();
+
+        const QString toolkitRootPath = QFileInfo(uninstallFilePath).path();
+        const QString toolchainPath = toolkitRootPath + QLatin1String("/bin");
+        searchPaths.push_back(toolchainPath);
+    }
+
+    return searchPaths;
+}
+
 Profile createGccProfile(const QFileInfo &compiler, Settings *settings,
                          const QStringList &toolchainTypes,
                          const QString &profileName)
@@ -306,7 +341,8 @@ void gccProbe(Settings *settings, QList<Profile> &profiles, const QString &compi
 {
     qbsInfo() << Tr::tr("Trying to detect %1...").arg(compilerName);
 
-    const QStringList searchPaths = systemSearchPaths();
+    QStringList searchPaths;
+    searchPaths << systemSearchPaths() << gnuRegistrySearchPaths();
 
     std::vector<QFileInfo> candidates;
     const auto filters = buildCompilerNameFilters(compilerName);