118 lines
2.4 KiB
Plaintext
118 lines
2.4 KiB
Plaintext
MEMORY
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{
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rom (rx) : ORIGIN = 0x08000000, LENGTH = 0x200000 /* Flash 2MB */
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x20000 /* 128 KB */
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ram2 (rwx) : ORIGIN = 0x24000000, LENGTH = 0x80000 /* 512 KB */
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}
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/* Enforce emmition of the vector table. */
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EXTERN (vector_table)
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/* Define the entry point of the output file. */
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ENTRY(reset_handler)
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/* Define sections. */
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SECTIONS
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{
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.text : {
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*(.vectors) /* Vector table */
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*(.text*) /* Program code */
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. = ALIGN(4);
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*(.rodata*) /* Read-only data */
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. = ALIGN(4);
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} >rom
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/* C++ Static constructors/destructors, also used for __attribute__
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* ((constructor)) and the likes */
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.preinit_array : {
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. = ALIGN(4);
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__preinit_array_start = .;
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KEEP (*(.preinit_array))
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__preinit_array_end = .;
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} >rom
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.init_array : {
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. = ALIGN(4);
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__init_array_start = .;
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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__init_array_end = .;
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} >rom
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.fini_array : {
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. = ALIGN(4);
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__fini_array_start = .;
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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__fini_array_end = .;
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} >rom
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/*
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* Another section used by C++ stuff, appears when using newlib with
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* 64bit (long long) printf support
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*/
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.ARM.extab : {
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*(.ARM.extab*)
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} >rom
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.ARM.exidx : {
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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} >rom
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. = ALIGN(4);
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_etext = .;
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/* ram, but not cleared on reset, eg boot/app comms */
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.noinit (NOLOAD) : {
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*(.noinit*)
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} >ram
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. = ALIGN(4);
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.data : {
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_data = .;
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*(.data*) /* Read-write initialized data */
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*(.ramtext*) /* "text" functions to run in ram */
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. = ALIGN(4);
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_edata = .;
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} >ram AT >rom
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_data_loadaddr = LOADADDR(.data);
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.bss : {
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*(.bss*) /* Read-write zero initialized data */
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*(COMMON)
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. = ALIGN(4);
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_ebss = .;
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} >ram
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/*
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* The .eh_frame section appears to be used for C++ exception handling.
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* You may need to fix this if you're using C++.
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*/
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/DISCARD/ : { *(.eh_frame) }
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/* Heap 分配到第二块 RAM */
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.heap : {
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_sheap = .;
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. = ORIGIN(ram2) + LENGTH(ram2);
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_eheap = .;
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} >ram2
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/* 第二块 RAM,用于大数组或 heap */
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/*
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.ext_ram (NOLOAD) : {
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_sext_ram = .;
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*(.ext_ram*)
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*(.bss_ext_ram*)
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. = ALIGN(4);
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_eext_ram = .;
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} > ram2
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*/
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. = ALIGN(4);
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end = .;
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}
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PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
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PROVIDE(_sheap = ORIGIN(ram2));
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PROVIDE(_eheap = ORIGIN(ram2) + LENGTH(ram2));
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