bare-metal: Add IAR EWARM toolchain support on Windows

This commit adds a basic support of the IAR Embedded Workbench
toolchain for the ARM processors on Windows host.

To use it with Qt Creator, it is enough to add there a desired Kit
with a custom IAR C/C++ compiler, and then set the following in the
Kit's Qbs profile settings:

* Key: qbs.toolchainType
* Value: iar

To specify the target CPU/FPU you need to set the cpp.driverFlags
property, like this:

    cpp.driverFlags: [
        "--cpu", "Cortex-M4",
        "--fpu", "VFPv4_sp"
    ]

Then these flags will be automatically passed to both compiler
and assembler.

To specify the linker flags you need to set the cpp.driverLinkerFlags
property instead of cpp.linkerFlags property, like this:

    cpp.driverLinkerFlags: ["--vfe"]

To add the linker script files you need to set the 'linkerscript'
tag, e.g. in the following way:

    Group {
        name: "Linker scripts"
        fileTags: ["linkerscript"]
        files: ["stm32f407xx_flash.icf"]
    }

Other properties can be used as usual, according to the EWARM
compiler documentation.

Tested with EWARM v8.20.2, v6.50.3 on Windows using:

* STM NUCLEO-F767ZI
* STM 32F4DISCOVERY

target boards.

Change-Id: I3c42eb94051352cb3b7eb5b0768a1dc8bdacabce
Reviewed-by: Richard Weickelt <richard@weickelt.de>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 65 insertions, 0 deletions

diff --git a/share/qbs/imports/qbs/Probes/IarProbe.qbs b/share/qbs/imports/qbs/Probes/IarProbe.qbs
new file mode 100644
index 000000000..9d22f5d2a
--- /dev/null
+++ b/share/qbs/imports/qbs/Probes/IarProbe.qbs
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of the Qt Build Suite.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms and
+** conditions see http://www.qt.io/terms-conditions. For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+import qbs.File
+import "../../../modules/cpp/iar.js" as IAR
+
+PathProbe {
+    // Inputs
+    property string compilerFilePath;
+
+    property string _nullDevice: qbs.nullDevice
+
+    // Outputs
+    property string architecture;
+    property string endianness;
+    property int versionMajor;
+    property int versionMinor;
+    property int versionPatch;
+
+    configure: {
+        if (!File.exists(compilerFilePath)) {
+            found = false;
+            return;
+        }
+
+        var macros = IAR.dumpMacros(compilerFilePath, qbs, _nullDevice);
+
+        architecture = IAR.guessArchitecture(macros);
+        endianness = IAR.guessEndianness(macros);
+
+        var version = parseInt(macros["__VER__"], 10);
+        versionMajor = parseInt(version / 1000000);
+        versionMinor = parseInt(version / 1000) % 1000;
+        versionPatch = parseInt(version) % 1000;
+
+        found = version && architecture && endianness;
+   }
+}