103 lines
2.9 KiB
Plaintext
103 lines
2.9 KiB
Plaintext
/*
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* Filename: linker.ld
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* Micro-Controller: stm32f103c8t6
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* Cortex-M3 and Cortex-M4 only need to be 4byte aligned where as
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* other's might need 8byte or something differnt.
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*/
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/*
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* Program Entry Point:
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* This part is put into the elf file header.
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*/
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ENTRY(Reset_Handler)
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/* Highest address of user mode stack */
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_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
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/* Generate a link error if heap and stack don't fit into RAM */
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_Min_Heap_Size = 0x200; /* required amount of heap. */
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_Min_Stack_Size = 0x400; /* required amount of stack. */
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/*
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* FORMAT:
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* R: Read only section.
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* W: Read/Write section.
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* X: Executable section.
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* A: Allocation section.
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* I: Initialized section.
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* !: Invert following attribute.
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*/
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/*
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* MEMORY Format:
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* name [(attr)] : ORIGIN = origin, LENGTH = len
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*/
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/* You will want to change these values to match your uC.*/
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MEMORY
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{
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FLASH(rx): ORIGIN = 0x08000000, LENGTH = 64K
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SRAM(rwx): ORIGIN = 0x20000000, LENGTH = 20K
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}
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/* VMA: virtual memory address.*/
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/* LMA: Load memory address. */
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floating_point = 0;
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SECTIONS
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{
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/* Code section, mapped to Flash memory */
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.text :
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{
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KEEP(*(.isr_vector)) /* Vector table, which must be at the beginning of Flash*/
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*(.text) /* All code goes here */
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*(.rodata) /* Read-only data (e.g., const vars) */
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_etext = .; /* Mark the end of text section */
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} > FLASH
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/* Initialized data section, copied from Flash to RAM on startup. */
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.data :
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{
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_sdata = .; /* Start of data section */
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*(.data) /* Initialized data */
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_edata = .; /* End of data section */
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} > RAM AT > FLASH
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/* BSS: Placed in SRAM memory types. */
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/* Holds all uninitialized globals and static variables.*/
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.bss :
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{
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_sbss = .; /* Start of BSS */
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*(.bss) /* Uninitialized data */
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*(COMMON) /* Common symbols (zero-init) */
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_ebss = .; /* End of BSS */
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} > RAM
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/* Stack Section: Sizes known at compile time. */
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._stack :
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{
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. = ALIGN(8); /* Align to 8-byte boundry */
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_estack = .; /* End of stack (top of the stack) */
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. = . + 2048; /* Reserve 2KB for stack */
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_sstack = .; /*Start of stack */
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} > RAM
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/* Heap Section: Used for dynamic memory allocation. */
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.heap :
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{
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_sheap = .; /* Start of heap */
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. = . + 2048; /* Reserve 2 KB for heap */
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_eheap = .; /* End of heap */
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} > RAM
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}
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/* Provide symbols to be used in the startup code */
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PROVIDE(_stack_start = _sstack);
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PROVIDE(_stack_end = _estack);
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PROVIDE(_heap_start = _sheap);
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PROVIDE(_heap_end = _eheap);
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