132 lines
3.2 KiB
Plaintext
132 lines
3.2 KiB
Plaintext
/*
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RAM space is organized in this way: the stack begins at the end of
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the RAM space and grows down towards the base, while the heap begins
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at the end of the bss space (symbol _end) and grows up towards the
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end of the RAM.
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WARNING: with this configuration we have an high risk of collision
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between stack and heap, since none of them is limited. One thing to
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do in the future is to put this limit to the stack.
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*/
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_stack_top = 0x20010000;
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/* temporary set heap end equal to stack top */
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_heap_end = _stack_top;
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/* identify the Entry Point */
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ENTRY(Reset_Handler)
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/* specify the memory areas */
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MEMORY
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{
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flash(rx) : ORIGIN = 0x4000, LENGTH = 0x7B800
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ram(wx) : ORIGIN = 0x1FFF0000, LENGTH = 128K
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}
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/* now define the output sections */
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SECTIONS
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{
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. = 0;
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/* .text section: code goes to flash */
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.text :
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{
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/* Startup code must go at address 0 */
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KEEP(*(.isr_vector))
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*(.text)
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*(.text.*)
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*(.gnu.linkonce.t.*)
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/* these sections for thumb interwork? */
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*(.glue_7)
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*(.glue_7t)
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/* these sections for C++? */
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*(.gcc_except_table)
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*(.gcc_except_table.*)
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*(.ARM.extab*)
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*(.gnu.linkonce.armextab.*)
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. = ALIGN(4);
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/* .rodata: constant data */
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*(.rodata)
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*(.rodata.*)
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*(.gnu.linkonce.r.*)
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/* C++ Static constructors/destructors (eabi) */
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. = ALIGN(4);
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KEEP(*(.init))
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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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. = 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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. = ALIGN(4);
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KEEP(*(.fini))
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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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/* C++ Static constructors/destructors (elf) */
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. = ALIGN(4);
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_ctor_start = .;
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KEEP (*crtbegin.o(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*crtend.o(.ctors))
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_ctor_end = .;
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. = ALIGN(4);
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*crtend.o(.dtors))
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} > flash
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/* .ARM.exidx is sorted, so has to go in its own output section. */
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__exidx_start = .;
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.ARM.exidx :
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{
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*(.ARM.exidx* .gnu.linkonce.armexidx.*)
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} > flash
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__exidx_end = .;
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/* .data section: global variables go to ram, but also store a copy to
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flash to initialize them */
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.data : ALIGN(8)
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{
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_data = .;
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d.*)
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. = ALIGN(8);
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_edata = .;
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} > ram AT > flash
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_etext = LOADADDR(.data);
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/* .bss section: uninitialized global variables go to ram */
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.bss :
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{
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_bss_start = .;
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*(.bss)
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*(.bss.*)
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*(.gnu.linkonce.b.*)
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. = ALIGN(8);
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} > ram
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_bss_end = .;
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_end = .;
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PROVIDE(end = .);
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}
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