support gcc for ch32f10x.

bsp/wch/arm/Libraries/CH32F10x_StdPeriph_Driver/CMSIS/WCH/CH32F10x/Source/GCC/startup_ch32f10x.S

@@ -0,0 +1,313 @@
+/********************************** (C) COPYRIGHT *******************************
+* File Name          : startup_ch32f10x.s
+* Author             : WCH
+* Version            : V1.0.0
+* Date               : 2020/11/01
+* Description        : CH32F10x vector table for GCC toolchain.
+*******************************************************************************/
+    
+  .syntax unified
+  .cpu cortex-m3
+  .fpu softvfp
+  .thumb
+
+.global  g_pfnVectors
+.global  Default_Handler
+
+/* start address for the initialization values of the .data section. 
+defined in linker script */
+.word  _sidata
+/* start address for the .data section. defined in linker script */  
+.word  _sdata
+/* end address for the .data section. defined in linker script */
+.word  _edata
+/* start address for the .bss section. defined in linker script */
+.word  _sbss
+/* end address for the .bss section. defined in linker script */
+.word  _ebss
+
+/*******************************************************************************
+ Reset handler
+*******************************************************************************/
+  .section  .text.Reset_Handler
+  .weak  Reset_Handler
+  .type  Reset_Handler, %function
+Reset_Handler:  
+
+/* Copy the data segment initializers from flash to SRAM */  
+  movs  r1, #0
+  b     LoopCopyDataInit
+
+CopyDataInit:
+  ldr   r3, =_sidata
+  ldr   r3, [r3, r1]
+  str   r3, [r0, r1]
+  adds  r1, r1, #4
+    
+LoopCopyDataInit:
+  ldr   r0, =_sdata
+  ldr   r3, =_edata
+  adds  r2, r0, r1
+  cmp   r2, r3
+  bcc   CopyDataInit
+  ldr   r2, =_sbss
+  b     LoopFillZerobss
+/* Zero fill the bss segment. */  
+FillZerobss:
+  movs  r3, #0
+  str   r3, [r2], #4
+    
+LoopFillZerobss:
+  ldr   r3, = _ebss
+  cmp   r2, r3
+  bcc   FillZerobss
+/* Call the clock system intitialization function.*/
+  bl  SystemInit   
+/* Call the application's entry point.*/
+  bl    main
+  bx    lr    
+.size  Reset_Handler, .-Reset_Handler
+
+/*******************************************************************************
+  This simply enters an infinite loop.
+*******************************************************************************/
+  .section  .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b  Infinite_Loop
+  .size  Default_Handler, .-Default_Handler
+
+/*******************************************************************************
+ Vector Table Mapped to Address 0 at Reset.
+*******************************************************************************/
+  .section  .isr_vector,"a",%progbits
+  .type  g_pfnVectors, %object
+  .size  g_pfnVectors, .-g_pfnVectors
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  MemManage_Handler
+  .word  BusFault_Handler
+  .word  UsageFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  DebugMon_Handler
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+
+/*******************************************************************************
+ External Interrupts
+*******************************************************************************/
+  .word  WWDG_IRQHandler
+  .word  PVD_IRQHandler
+  .word  TAMPER_IRQHandler
+  .word  RTC_IRQHandler
+  .word  FLASH_IRQHandler
+  .word  RCC_IRQHandler
+  .word  EXTI0_IRQHandler
+  .word  EXTI1_IRQHandler
+  .word  EXTI2_IRQHandler
+  .word  EXTI3_IRQHandler
+  .word  EXTI4_IRQHandler
+  .word  DMA1_Channel1_IRQHandler
+  .word  DMA1_Channel2_IRQHandler
+  .word  DMA1_Channel3_IRQHandler
+  .word  DMA1_Channel4_IRQHandler
+  .word  DMA1_Channel5_IRQHandler
+  .word  DMA1_Channel6_IRQHandler
+  .word  DMA1_Channel7_IRQHandler
+  .word  ADC1_2_IRQHandler
+  .word  USB_HP_CAN1_TX_IRQHandler
+  .word  USB_LP_CAN1_RX0_IRQHandler
+  .word  CAN1_RX1_IRQHandler
+  .word  CAN1_SCE_IRQHandler
+  .word  EXTI9_5_IRQHandler
+  .word  TIM1_BRK_IRQHandler
+  .word  TIM1_UP_IRQHandler
+  .word  TIM1_TRG_COM_IRQHandler
+  .word  TIM1_CC_IRQHandler
+  .word  TIM2_IRQHandler
+  .word  TIM3_IRQHandler
+  .word  TIM4_IRQHandler
+  .word  I2C1_EV_IRQHandler
+  .word  I2C1_ER_IRQHandler
+  .word  I2C2_EV_IRQHandler
+  .word  I2C2_ER_IRQHandler
+  .word  SPI1_IRQHandler
+  .word  SPI2_IRQHandler
+  .word  USART1_IRQHandler
+  .word  USART2_IRQHandler
+  .word  USART3_IRQHandler
+  .word  EXTI15_10_IRQHandler
+  .word  RTCAlarm_IRQHandler
+  .word  USBWakeUp_IRQHandler
+  .word  USBHD_IRQHandler
+   
+/*******************************************************************************
+ Dummy Exception Handlers (infinite loops which can be modified)
+*******************************************************************************/
+  .weak  NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+  
+  .weak  HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+  
+  .weak  MemManage_Handler
+  .thumb_set MemManage_Handler,Default_Handler
+  
+  .weak  BusFault_Handler
+  .thumb_set BusFault_Handler,Default_Handler
+
+  .weak  UsageFault_Handler
+  .thumb_set UsageFault_Handler,Default_Handler
+
+  .weak  SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak  DebugMon_Handler
+  .thumb_set DebugMon_Handler,Default_Handler
+
+  .weak  PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak  SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak  WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak  PVD_IRQHandler
+  .thumb_set PVD_IRQHandler,Default_Handler
+
+  .weak  TAMPER_IRQHandler
+  .thumb_set TAMPER_IRQHandler,Default_Handler
+
+  .weak  RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak  FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak  RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak  EXTI0_IRQHandler
+  .thumb_set EXTI0_IRQHandler,Default_Handler
+
+  .weak  EXTI1_IRQHandler
+  .thumb_set EXTI1_IRQHandler,Default_Handler
+
+  .weak  EXTI2_IRQHandler
+  .thumb_set EXTI2_IRQHandler,Default_Handler
+
+  .weak  EXTI3_IRQHandler
+  .thumb_set EXTI3_IRQHandler,Default_Handler
+
+  .weak  EXTI4_IRQHandler
+  .thumb_set EXTI4_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel2_IRQHandler
+  .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel3_IRQHandler
+  .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel4_IRQHandler
+  .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel5_IRQHandler
+  .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel6_IRQHandler
+  .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
+
+  .weak  DMA1_Channel7_IRQHandler
+  .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
+
+  .weak  ADC1_2_IRQHandler
+  .thumb_set ADC1_2_IRQHandler,Default_Handler
+
+  .weak  USB_HP_CAN1_TX_IRQHandler
+  .thumb_set USB_HP_CAN1_TX_IRQHandler,Default_Handler
+
+  .weak  USB_LP_CAN1_RX0_IRQHandler
+  .thumb_set USB_LP_CAN1_RX0_IRQHandler,Default_Handler
+
+  .weak  CAN1_RX1_IRQHandler
+  .thumb_set CAN1_RX1_IRQHandler,Default_Handler
+
+  .weak  CAN1_SCE_IRQHandler
+  .thumb_set CAN1_SCE_IRQHandler,Default_Handler
+
+  .weak  EXTI9_5_IRQHandler
+  .thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+  .weak  TIM1_BRK_IRQHandler
+  .thumb_set TIM1_BRK_IRQHandler,Default_Handler
+
+  .weak  TIM1_UP_IRQHandler
+  .thumb_set TIM1_UP_IRQHandler,Default_Handler
+
+  .weak  TIM1_TRG_COM_IRQHandler
+  .thumb_set TIM1_TRG_COM_IRQHandler,Default_Handler
+
+  .weak  TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak  TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak  TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak  TIM4_IRQHandler
+  .thumb_set TIM4_IRQHandler,Default_Handler
+
+  .weak  I2C1_EV_IRQHandler
+  .thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+  .weak  I2C1_ER_IRQHandler
+  .thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+  .weak  I2C2_EV_IRQHandler
+  .thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+  .weak  I2C2_ER_IRQHandler
+  .thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+  .weak  SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak  SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak  USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak  USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak  USART3_IRQHandler
+  .thumb_set USART3_IRQHandler,Default_Handler
+
+  .weak  EXTI15_10_IRQHandler
+  .thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+  .weak  RTCAlarm_IRQHandler
+  .thumb_set RTCAlarm_IRQHandler,Default_Handler
+
+  .weak  USBWakeUp_IRQHandler
+  .thumb_set USBWakeUp_IRQHandler,Default_Handler
+
+  .weak  USBHD_IRQHandler
+  .thumb_set USBHD_IRQHandler,Default_Handler

bsp/wch/arm/ch32f103c8-core/board/SConscript

@@ -17,6 +17,8 @@ startup_path_prefix = SDK_LIB
 
 if rtconfig.CROSS_TOOL == 'keil':
     src += [startup_path_prefix + '/CH32F10x_StdPeriph_Driver/CMSIS/WCH/CH32F10x/Source/ARM/startup_ch32f10x.s']
+if rtconfig.CROSS_TOOL == 'gcc':
+    src += [startup_path_prefix + '/CH32F10x_StdPeriph_Driver/CMSIS/WCH/CH32F10x/Source/GCC/startup_ch32f10x.S']
 
 
 path =  [cwd]

bsp/wch/arm/ch32f103c8-core/board/linker_scripts/link.lds

@@ -0,0 +1,152 @@
+/* Program Entry, set to mark it as "used" and avoid gc */
+MEMORY
+{
+    ROM (rx) : ORIGIN = 0x08000000, LENGTH = 64k /* 64KB flash */
+    RAM (rw) : ORIGIN = 0x20000000, LENGTH =  20k /* 20K sram */
+}
+ENTRY(Reset_Handler)
+_system_stack_size = 0x200;
+
+SECTIONS
+{
+    .text :
+    {
+        . = ALIGN(4);
+        _stext = .;
+        KEEP(*(.isr_vector))            /* Startup code */
+
+        . = ALIGN(4);
+        *(.text)                        /* remaining code */
+        *(.text.*)                      /* remaining code */
+        *(.rodata)                      /* read-only data (constants) */
+        *(.rodata*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.gnu.linkonce.t*)
+
+        /* section information for finsh shell */
+        . = ALIGN(4);
+        __fsymtab_start = .;
+        KEEP(*(FSymTab))
+        __fsymtab_end = .;
+
+        . = ALIGN(4);
+        __vsymtab_start = .;
+        KEEP(*(VSymTab))
+        __vsymtab_end = .;
+
+        /* section information for initial. */
+        . = ALIGN(4);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+
+        . = ALIGN(4);
+
+        PROVIDE(__ctors_start__ = .);
+        KEEP (*(SORT(.init_array.*)))
+        KEEP (*(.init_array))
+        PROVIDE(__ctors_end__ = .);
+
+        . = ALIGN(4);
+
+        _etext = .;
+    } > ROM = 0
+
+    /* .ARM.exidx is sorted, so has to go in its own output section.  */
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+
+        /* This is used by the startup in order to initialize the .data secion */
+        _sidata = .;
+    } > ROM
+    __exidx_end = .;
+
+    /* .data section which is used for initialized data */
+
+    .data : AT (_sidata)
+    {
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .data secion */
+        _sdata = . ;
+
+        *(.data)
+        *(.data.*)
+        *(.gnu.linkonce.d*)
+
+        PROVIDE(__dtors_start__ = .);
+        KEEP(*(SORT(.dtors.*)))
+        KEEP(*(.dtors))
+        PROVIDE(__dtors_end__ = .);
+
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .data secion */
+        _edata = . ;
+    } >RAM
+
+    .stack : 
+    {
+        . = ALIGN(4);
+        _sstack = .;
+        . = . + _system_stack_size;
+        . = ALIGN(4);
+        _estack = .;
+    } >RAM
+
+    __bss_start = .;
+    .bss :
+    {
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .bss secion */
+        _sbss = .;
+
+        *(.bss)
+        *(.bss.*)
+        *(COMMON)
+
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .bss secion */
+        _ebss = . ;
+        
+        *(.bss.init)
+    } > RAM
+    __bss_end = .;
+
+    _end = .;
+
+    /* Stabs debugging sections.  */
+    .stab          0 : { *(.stab) }
+    .stabstr       0 : { *(.stabstr) }
+    .stab.excl     0 : { *(.stab.excl) }
+    .stab.exclstr  0 : { *(.stab.exclstr) }
+    .stab.index    0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment       0 : { *(.comment) }
+    /* DWARF debug sections.
+     * Symbols in the DWARF debugging sections are relative to the beginning
+     * of the section so we begin them at 0.  */
+    /* DWARF 1 */
+    .debug          0 : { *(.debug) }
+    .line           0 : { *(.line) }
+    /* GNU DWARF 1 extensions */
+    .debug_srcinfo  0 : { *(.debug_srcinfo) }
+    .debug_sfnames  0 : { *(.debug_sfnames) }
+    /* DWARF 1.1 and DWARF 2 */
+    .debug_aranges  0 : { *(.debug_aranges) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    /* DWARF 2 */
+    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+    .debug_abbrev   0 : { *(.debug_abbrev) }
+    .debug_line     0 : { *(.debug_line) }
+    .debug_frame    0 : { *(.debug_frame) }
+    .debug_str      0 : { *(.debug_str) }
+    .debug_loc      0 : { *(.debug_loc) }
+    .debug_macinfo  0 : { *(.debug_macinfo) }
+    /* SGI/MIPS DWARF 2 extensions */
+    .debug_weaknames 0 : { *(.debug_weaknames) }
+    .debug_funcnames 0 : { *(.debug_funcnames) }
+    .debug_typenames 0 : { *(.debug_typenames) }
+    .debug_varnames  0 : { *(.debug_varnames) }
+}