diff --git a/ports/stm32/boards/common_basic.ld b/ports/stm32/boards/common_basic.ld new file mode 100644 index 0000000000..2e428aa62c --- /dev/null +++ b/ports/stm32/boards/common_basic.ld @@ -0,0 +1,86 @@ +/* Memory layout for basic configuration: + + FLASH .isr_vector + FLASH .text + FLASH .data + + RAM .data + RAM .bss + RAM .heap + RAM .stack +*/ + +ENTRY(Reset_Handler) + +/* define output sections */ +SECTIONS +{ + /* The startup code goes first into FLASH */ + .isr_vector : + { + . = ALIGN(4); + KEEP(*(.isr_vector)) /* Startup code */ + + . = ALIGN(4); + } >FLASH + + /* The program code and other data goes into FLASH */ + .text : + { + . = ALIGN(4); + *(.text*) /* .text* sections (code) */ + *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ + /* *(.glue_7) */ /* glue arm to thumb code */ + /* *(.glue_7t) */ /* glue thumb to arm code */ + + . = ALIGN(4); + _etext = .; /* define a global symbol at end of code */ + } >FLASH + + /* used by the startup to initialize data */ + _sidata = LOADADDR(.data); + + /* This is the initialized data section + The program executes knowing that the data is in the RAM + but the loader puts the initial values in the FLASH (inidata). + It is one task of the startup to copy the initial values from FLASH to RAM. */ + .data : + { + . = ALIGN(4); + _sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */ + *(.data*) /* .data* sections */ + + . = ALIGN(4); + _edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */ + } >RAM AT> FLASH + + /* Uninitialized data section */ + .bss : + { + . = ALIGN(4); + _sbss = .; /* define a global symbol at bss start; used by startup code */ + *(.bss*) + *(COMMON) + + . = ALIGN(4); + _ebss = .; /* define a global symbol at bss end; used by startup code and GC */ + } >RAM + + /* this is to define the start of the heap, and make sure we have a minimum size */ + .heap : + { + . = ALIGN(4); + . = . + _minimum_heap_size; + . = ALIGN(4); + } >RAM + + /* this just checks there is enough RAM for the stack */ + .stack : + { + . = ALIGN(4); + . = . + _minimum_stack_size; + . = ALIGN(4); + } >RAM + + .ARM.attributes 0 : { *(.ARM.attributes) } +}