mirror of
https://github.com/RT-Thread/rt-thread.git
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c802fcdcf8
WCH CH569W-R0-1v0 evt board bsp port, first version dev/test under Ubuntu 20.04 toolchain from MounRiver_Studio_Community_Linux_x64_V120 tested drivers : SysTick, gpio, gpio interrupt, uart1 (RX interrupt, TX polling) libcpu/risc-v/SConscript : group includes rtconfig.CPU only if folder exists libcpu/risc-v/common/cpuport.c/rt_hw_context_switch_interrupt() : make it RT_WEAK for customization
200 lines
4.2 KiB
Plaintext
200 lines
4.2 KiB
Plaintext
ENTRY( _start )
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__stack_size = 2048;
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PROVIDE( _stack_size = __stack_size );
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MEMORY
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{
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FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 96K
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RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 16K
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RAMX (xrw) : ORIGIN = 0x20020000, LENGTH = 32K
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}
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SECTIONS
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{
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.init :
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{
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_sinit = .;
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. = ALIGN(4);
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KEEP(*(SORT_NONE(.init)))
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. = ALIGN(4);
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_einit = .;
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} >FLASH AT>FLASH
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.vector :
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{
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*(.vector);
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. = ALIGN(64);
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} >FLASH AT>FLASH
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.text :
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{
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. = ALIGN(4);
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*(.text)
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*(.text.*)
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*(.rodata)
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*(.rodata*)
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*(.glue_7)
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*(.glue_7t)
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*(.gnu.linkonce.t.*)
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/* section information for finsh shell */
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. = ALIGN(4);
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__fsymtab_start = .;
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KEEP(*(FSymTab))
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__fsymtab_end = .;
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. = ALIGN(4);
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__vsymtab_start = .;
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KEEP(*(VSymTab))
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__vsymtab_end = .;
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. = ALIGN(4);
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/* section information for initial. */
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. = ALIGN(4);
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__rt_init_start = .;
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KEEP(*(SORT(.rti_fn*)))
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__rt_init_end = .;
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. = ALIGN(4);
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/* section information for modules */
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. = ALIGN(4);
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__rtmsymtab_start = .;
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KEEP(*(RTMSymTab))
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__rtmsymtab_end = .;
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. = ALIGN(4);
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} >FLASH AT>FLASH
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.fini :
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{
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KEEP(*(SORT_NONE(.fini)))
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. = ALIGN(4);
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} >FLASH AT>FLASH
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PROVIDE( _etext = . );
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PROVIDE( _eitcm = . );
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.preinit_array :
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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} >FLASH AT>FLASH
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.init_array :
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
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KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
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PROVIDE_HIDDEN (__init_array_end = .);
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} >FLASH AT>FLASH
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.fini_array :
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
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KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
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PROVIDE_HIDDEN (__fini_array_end = .);
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} >FLASH AT>FLASH
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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KEEP (*crtbegin?.o(.ctors))
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/* We don't want to include the .ctor section from
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the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} >FLASH AT>FLASH
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*crtbegin?.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} >FLASH AT>FLASH
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.dalign :
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{
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. = ALIGN(4);
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PROVIDE(_data_vma = .);
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} >RAM AT>FLASH
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.dlalign :
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{
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. = ALIGN(4);
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PROVIDE(_data_lma = .);
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} >FLASH AT>FLASH
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.data :
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{
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*(.gnu.linkonce.r.*)
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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. = ALIGN(8);
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PROVIDE( __global_pointer$ = . + 0x800 );
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*(.sdata .sdata.*)
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*(.sdata2.*)
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*(.gnu.linkonce.s.*)
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. = ALIGN(8);
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*(.srodata.cst16)
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*(.srodata.cst8)
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*(.srodata.cst4)
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*(.srodata.cst2)
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*(.srodata .srodata.*)
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. = ALIGN(4);
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PROVIDE( _edata = .);
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} >RAM AT>FLASH
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.bss :
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{
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. = ALIGN(4);
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PROVIDE( _sbss = .);
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*(.sbss*)
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*(.gnu.linkonce.sb.*)
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*(.bss*)
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*(.gnu.linkonce.b.*)
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*(COMMON*)
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. = ALIGN(4);
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PROVIDE( _ebss = .);
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} >RAM AT>FLASH
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PROVIDE( _end = _ebss);
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PROVIDE( end = . );
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.dmadata :
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{
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. = ALIGN(16);
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PROVIDE( _dmadata_start = .);
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*(.dmadata*)
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*(.dmadata.*)
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. = ALIGN(16);
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PROVIDE( _dmadata_end = .);
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} >RAMX AT>FLASH /**/
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.stack ORIGIN(RAM) + LENGTH(RAM) - __stack_size :
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{
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PROVIDE( _heap_end = . );
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. = ALIGN(4);
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PROVIDE(_susrstack = . );
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. = . + __stack_size;
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PROVIDE( _eusrstack = .);
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} >RAM
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}
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