baremetal: Add support for IAR toolchain to 'stm32f103' example

Change-Id: I66810811b04d1fb7909ee0bb9975d1823ce6e9b6
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>

4 files changed, 240 insertions, 0 deletions

diff --git a/examples/baremetal/stm32f103/greenblink/README.md b/examples/baremetal/stm32f103/greenblink/README.md
index 652ab7ec2..8d19ac73a 100644
--- a/examples/baremetal/stm32f103/greenblink/README.md
+++ b/examples/baremetal/stm32f103/greenblink/README.md
@@ -6,4 +6,5 @@ LED on the board.
 The following toolchains are supported:
 
   * GNU Arm Embedded Toolchain
+  * IAR Embedded Workbench
   * KEIL Microcontroller Development Kit
diff --git a/examples/baremetal/stm32f103/greenblink/greenblink.qbs b/examples/baremetal/stm32f103/greenblink/greenblink.qbs
index 2a2a91130..d925344fb 100644
--- a/examples/baremetal/stm32f103/greenblink/greenblink.qbs
+++ b/examples/baremetal/stm32f103/greenblink/greenblink.qbs
@@ -55,6 +55,7 @@ CppApplication {
         if (!qbs.architecture.startsWith("arm"))
             return false;
         return (qbs.toolchain.contains("gcc")
+                || qbs.toolchain.contains("iar")
                 || qbs.toolchain.contains("keil"))
                 && !qbs.toolchain.contains("xcode")
     }
@@ -94,6 +95,38 @@ CppApplication {
     }
 
     //
+    // IAR-specific properties and sources.
+    //
+
+    Properties {
+        condition: qbs.toolchain.contains("iar")
+        cpp.assemblerFlags: [
+            "--cpu", "cortex-m3",
+            "--fpu", "none"
+        ]
+        cpp.driverFlags: [
+            "--cpu", "cortex-m3",
+            "--fpu", "none"
+        ]
+    }
+
+    Group {
+        condition: qbs.toolchain.contains("iar")
+        name: "IAR"
+        prefix: "iar/"
+        Group {
+            name: "Startup"
+            fileTags: ["asm"]
+            files: ["startup.s"]
+        }
+        Group {
+            name: "Linker Script"
+            fileTags: ["linkerscript"]
+            files: ["flash.icf"]
+        }
+    }
+
+    //
     // KEIL-specific properties and sources.
     //
 
diff --git a/examples/baremetal/stm32f103/greenblink/iar/flash.icf b/examples/baremetal/stm32f103/greenblink/iar/flash.icf
new file mode 100644
index 000000000..1b424d29f
--- /dev/null
+++ b/examples/baremetal/stm32f103/greenblink/iar/flash.icf
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+define symbol _start_of_intvec_section = 0x08000000;
+
+define symbol _start_of_flash_section = 0x08000000;
+define symbol _end_of_flash_section = 0x0801FFFF;
+define symbol _start_of_ram_section = 0x20000000;
+define symbol _end_of_ram_section = 0x20004FFF;
+
+define symbol _min_stack_size = 0x400;
+define symbol _min_heap_size = 0x200;
+
+define memory mem with size = 4G;
+define region flash_section = mem:[from _start_of_flash_section to _end_of_flash_section];
+define region ram_section = mem:[from _start_of_ram_section to _end_of_ram_section];
+
+define block CSTACK with alignment = 8, size = _min_stack_size { };
+define block HEAP with alignment = 8, size = _min_heap_size { };
+
+initialize by copy { readwrite };
+do not initialize  { section .noinit };
+
+place at address mem:_start_of_intvec_section { readonly section .intvec };
+
+place in flash_section { readonly };
+place in ram_section { readwrite, block CSTACK, block HEAP };
diff --git a/examples/baremetal/stm32f103/greenblink/iar/startup.s b/examples/baremetal/stm32f103/greenblink/iar/startup.s
new file mode 100644
index 000000000..cda2a4e7b
--- /dev/null
+++ b/examples/baremetal/stm32f103/greenblink/iar/startup.s
@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+    MODULE  ?cstartup
+
+    SECTION CSTACK:DATA:NOROOT(3)
+    SECTION .intvec:CODE:NOROOT(2)
+
+    EXTERN  __iar_program_start
+
+    PUBLIC  _vectors_table
+    DATA
+_vectors_table
+    ;; Generic interrupts offset.
+    DCD     sfe(CSTACK)     ; Initial stack pointer value.
+    DCD     reset_handler   ; Reset.
+    DCD     0               ; NMI.
+    DCD     0               ; Hard fault.
+    DCD     0               ; MPU fault.
+    DCD     0               ; Bus fault.
+    DCD     0               ; Usage fault.
+    DCD     0               ; Reserved.
+    DCD     0               ; Reserved.
+    DCD     0               ; Reserved.
+    DCD     0               ; Reserved.
+    DCD     0               ; SVC.
+    DCD     0               ; Debug monitor.
+    DCD     0               ; Reserved.
+    DCD     0               ; PendSV.
+    DCD     0               ; SysTick.
+    ;; External interrupts offset.
+    DCD     0               ; Window watchdog.
+    DCD     0               ; PVD through EXTI line detection.
+    DCD     0               ; Tamper.
+    DCD     0               ; RTC.
+    DCD     0               ; Flash.
+    DCD     0               ; RCC.
+    DCD     0               ; EXTI line 0.
+    DCD     0               ; EXTI line 1.
+    DCD     0               ; EXTI line 2.
+    DCD     0               ; EXTI line 3.
+    DCD     0               ; EXTI line 4.
+    DCD     0               ; DMA1 channel 1.
+    DCD     0               ; DMA1 channel 2.
+    DCD     0               ; DMA1 channel 3.
+    DCD     0               ; DMA1 channel 4.
+    DCD     0               ; DMA1 channel 5.
+    DCD     0               ; DMA1 channel 6.
+    DCD     0               ; DMA1 channel 7.
+    DCD     0               ; ADC1/2.
+    DCD     0               ; USB high priority or CAN1 TX.
+    DCD     0               ; USB low  priority or CAN1 RX0.
+    DCD     0               ; CAN1 RX1.
+    DCD     0               ; CAN1 SCE.
+    DCD     0               ; EXTI line 9..5.
+    DCD     0               ; TIM1 break.
+    DCD     0               ; TIM1 update.
+    DCD     0               ; TIM1 trigger and commutation.
+    DCD     0               ; TIM1 capture compare.
+    DCD     0               ; TIM2.
+    DCD     0               ; TIM3.
+    DCD     0               ; TIM4.
+    DCD     0               ; I2C1 event.
+    DCD     0               ; I2C1 error.
+    DCD     0               ; I2C2 event.
+    DCD     0               ; I2C2 error.
+    DCD     0               ; SPI1.
+    DCD     0               ; SPI2.
+    DCD     0               ; USART1.
+    DCD     0               ; USART2.
+    DCD     0               ; USART3.
+    DCD     0               ; EXTI line 15..10.
+    DCD     0               ; RTC alarm through EXTI line.
+    DCD     0               ; USB wakeup from suspend.
+
+    ;; Reset handler.
+    THUMB
+    PUBWEAK reset_handler
+    SECTION .text:CODE:REORDER:NOROOT(2)
+reset_handler
+    BLX    R0
+    LDR    R0, =__iar_program_start
+    BX     R0
+
+    END