mirror of
https://github.com/betaflight/betaflight.git
synced 2025-07-24 08:45:36 +03:00
Adding RP2350 SDK and target framework (#13988)
* Adding RP2350 SDK and target framework * Spacing * Removing board definitions
This commit is contained in:
J Blackman
GitHub
parent
462cb05930
commit
2dd6f95aad
576 changed files with 435012 additions and 0 deletions
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@ -0,0 +1,286 @@
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/* Based on GCC ARM embedded samples.
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Defines the following symbols for use by code:
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__exidx_start
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__exidx_end
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__etext
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__data_start__
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__preinit_array_start
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__preinit_array_end
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__init_array_start
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__init_array_end
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__fini_array_start
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__fini_array_end
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__data_end__
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__bss_start__
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__bss_end__
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__end__
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end
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__HeapLimit
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__StackLimit
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__StackTop
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__stack (== StackTop)
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*/
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MEMORY
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{
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INCLUDE "pico_flash_region.ld"
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RAM(rwx) : ORIGIN = 0x21000000, LENGTH = 256k
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SCRATCH_X(rwx) : ORIGIN = 0x20040000, LENGTH = 4k
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SCRATCH_Y(rwx) : ORIGIN = 0x20041000, LENGTH = 4k
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}
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ENTRY(_entry_point)
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SECTIONS
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{
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/* Second stage bootloader is prepended to the image. It must be 256 bytes big
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and checksummed. It is usually built by the boot_stage2 target
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in the Raspberry Pi Pico SDK
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*/
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.flash_begin : {
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__flash_binary_start = .;
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} > FLASH
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.boot2 : {
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__boot2_start__ = .;
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KEEP (*(.boot2))
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__boot2_end__ = .;
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} > FLASH
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ASSERT(__boot2_end__ - __boot2_start__ == 256,
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"ERROR: Pico second stage bootloader must be 256 bytes in size")
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/* The second stage will always enter the image at the start of .text.
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The debugger will use the ELF entry point, which is the _entry_point
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symbol if present, otherwise defaults to start of .text.
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This can be used to transfer control back to the bootrom on debugger
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launches only, to perform proper flash setup.
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*/
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.text : {
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__logical_binary_start = .;
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KEEP (*(.vectors))
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KEEP (*(.binary_info_header))
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__binary_info_header_end = .;
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KEEP (*(.embedded_block))
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__embedded_block_end = .;
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KEEP (*(.reset))
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/* TODO revisit this now memset/memcpy/float in ROM */
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/* bit of a hack right now to exclude all floating point and time critical (e.g. memset, memcpy) code from
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* FLASH ... we will include any thing excluded here in .data below by default */
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*(.init)
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*(EXCLUDE_FILE(*libgcc.a: *libc.a:*lib_a-mem*.o *libm.a:) .text*)
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*(.fini)
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/* Pull all c'tors into .text */
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*crtbegin.o(.ctors)
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*crtbegin?.o(.ctors)
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*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
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*(SORT(.ctors.*))
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*(.ctors)
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/* Followed by destructors */
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*crtbegin.o(.dtors)
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*crtbegin?.o(.dtors)
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*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
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*(SORT(.dtors.*))
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*(.dtors)
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. = ALIGN(4);
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/* preinit data */
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP(*(SORT(.preinit_array.*)))
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KEEP(*(.preinit_array))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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. = ALIGN(4);
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/* init data */
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP(*(SORT(.init_array.*)))
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KEEP(*(.init_array))
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PROVIDE_HIDDEN (__init_array_end = .);
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. = ALIGN(4);
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/* finit data */
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PROVIDE_HIDDEN (__fini_array_start = .);
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*(SORT(.fini_array.*))
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*(.fini_array)
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PROVIDE_HIDDEN (__fini_array_end = .);
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*(.eh_frame*)
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. = ALIGN(4);
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} > FLASH
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.rodata : {
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*(EXCLUDE_FILE(*libgcc.a: *libc.a:*lib_a-mem*.o *libm.a:) .rodata*)
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. = ALIGN(4);
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*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.flashdata*)))
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. = ALIGN(4);
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} > FLASH
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.ARM.extab :
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{
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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} > FLASH
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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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|
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/* Machine inspectable binary information */
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. = ALIGN(4);
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__binary_info_start = .;
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.binary_info :
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{
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KEEP(*(.binary_info.keep.*))
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*(.binary_info.*)
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} > FLASH
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__binary_info_end = .;
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. = ALIGN(4);
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.ram_vector_table (NOLOAD): {
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*(.ram_vector_table)
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} > RAM
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.uninitialized_data (NOLOAD): {
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. = ALIGN(4);
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*(.uninitialized_data*)
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} > RAM
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.data : {
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__data_start__ = .;
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*(vtable)
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*(.time_critical*)
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|
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/* remaining .text and .rodata; i.e. stuff we exclude above because we want it in RAM */
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*(.text*)
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. = ALIGN(4);
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*(.rodata*)
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. = ALIGN(4);
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|
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*(.data*)
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|
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. = ALIGN(4);
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*(.after_data.*)
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. = ALIGN(4);
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/* preinit data */
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PROVIDE_HIDDEN (__mutex_array_start = .);
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KEEP(*(SORT(.mutex_array.*)))
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KEEP(*(.mutex_array))
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PROVIDE_HIDDEN (__mutex_array_end = .);
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. = ALIGN(4);
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*(.jcr)
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. = ALIGN(4);
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} > RAM AT> FLASH
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.tdata : {
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. = ALIGN(4);
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*(.tdata .tdata.* .gnu.linkonce.td.*)
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/* All data end */
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__tdata_end = .;
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} > RAM AT> FLASH
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PROVIDE(__data_end__ = .);
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/* __etext is (for backwards compatibility) the name of the .data init source pointer (...) */
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__etext = LOADADDR(.data);
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.tbss (NOLOAD) : {
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. = ALIGN(4);
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__bss_start__ = .;
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__tls_base = .;
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*(.tbss .tbss.* .gnu.linkonce.tb.*)
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*(.tcommon)
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__tls_end = .;
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} > RAM
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.bss (NOLOAD) : {
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. = ALIGN(4);
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__tbss_end = .;
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*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
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*(COMMON)
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. = ALIGN(4);
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__bss_end__ = .;
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} > RAM
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.heap (NOLOAD):
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{
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__end__ = .;
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end = __end__;
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KEEP(*(.heap*))
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} > RAM
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/* historically on GCC sbrk was growing past __HeapLimit to __StackLimit, however
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to be more compatible, we now set __HeapLimit explicitly to where the end of the heap is */
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__HeapLimit = ORIGIN(RAM) + LENGTH(RAM);
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/* Start and end symbols must be word-aligned */
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.scratch_x : {
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__scratch_x_start__ = .;
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*(.scratch_x.*)
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. = ALIGN(4);
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__scratch_x_end__ = .;
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} > SCRATCH_X AT > FLASH
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__scratch_x_source__ = LOADADDR(.scratch_x);
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.scratch_y : {
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__scratch_y_start__ = .;
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*(.scratch_y.*)
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. = ALIGN(4);
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__scratch_y_end__ = .;
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} > SCRATCH_Y AT > FLASH
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__scratch_y_source__ = LOADADDR(.scratch_y);
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/* .stack*_dummy section doesn't contains any symbols. It is only
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* used for linker to calculate size of stack sections, and assign
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* values to stack symbols later
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*
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* stack1 section may be empty/missing if platform_launch_core1 is not used */
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/* by default we put core 0 stack at the end of scratch Y, so that if core 1
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* stack is not used then all of SCRATCH_X is free.
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*/
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.stack1_dummy (NOLOAD):
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{
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*(.stack1*)
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} > SCRATCH_X
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.stack_dummy (NOLOAD):
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{
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KEEP(*(.stack*))
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} > SCRATCH_Y
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.flash_end : {
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KEEP(*(.embedded_end_block*))
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PROVIDE(__flash_binary_end = .);
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} > FLASH
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/* stack limit is poorly named, but historically is maximum heap ptr */
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__StackLimit = ORIGIN(RAM) + LENGTH(RAM);
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__StackOneTop = ORIGIN(SCRATCH_X) + LENGTH(SCRATCH_X);
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__StackTop = ORIGIN(SCRATCH_Y) + LENGTH(SCRATCH_Y);
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__StackOneBottom = __StackOneTop - SIZEOF(.stack1_dummy);
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__StackBottom = __StackTop - SIZEOF(.stack_dummy);
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PROVIDE(__stack = __StackTop);
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/* picolibc and LLVM */
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PROVIDE (__heap_start = __end__);
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PROVIDE (__heap_end = __HeapLimit);
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PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
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PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1));
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PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
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/* llvm-libc */
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PROVIDE (_end = __end__);
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PROVIDE (__llvm_libc_heap_limit = __HeapLimit);
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/* Check if data + heap + stack exceeds RAM limit */
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ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed")
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ASSERT( __binary_info_header_end - __logical_binary_start <= 256, "Binary info must be in first 256 bytes of the binary")
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/* todo assert on extra code */
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}
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@ -0,0 +1,287 @@
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/* Based on GCC ARM embedded samples.
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Defines the following symbols for use by code:
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__exidx_start
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__exidx_end
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__etext
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__data_start__
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__preinit_array_start
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__preinit_array_end
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__init_array_start
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__init_array_end
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__fini_array_start
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__fini_array_end
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__data_end__
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__bss_start__
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__bss_end__
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__end__
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end
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__HeapLimit
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__StackLimit
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__StackTop
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__stack (== StackTop)
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*/
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MEMORY
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{
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INCLUDE "pico_flash_region.ld"
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RAM(rwx) : ORIGIN = 0x20000000, LENGTH = 256k
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SCRATCH_X(rwx) : ORIGIN = 0x20040000, LENGTH = 4k
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SCRATCH_Y(rwx) : ORIGIN = 0x20041000, LENGTH = 4k
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}
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|
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ENTRY(_entry_point)
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SECTIONS
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{
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/* Second stage bootloader is prepended to the image. It must be 256 bytes big
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and checksummed. It is usually built by the boot_stage2 target
|
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in the Raspberry Pi Pico SDK
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*/
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.flash_begin : {
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__flash_binary_start = .;
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} > FLASH
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.boot2 : {
|
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__boot2_start__ = .;
|
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KEEP (*(.boot2))
|
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__boot2_end__ = .;
|
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} > FLASH
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ASSERT(__boot2_end__ - __boot2_start__ == 256,
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"ERROR: Pico second stage bootloader must be 256 bytes in size")
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/* The second stage will always enter the image at the start of .text.
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The debugger will use the ELF entry point, which is the _entry_point
|
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symbol if present, otherwise defaults to start of .text.
|
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This can be used to transfer control back to the bootrom on debugger
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launches only, to perform proper flash setup.
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*/
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.flashtext : {
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__logical_binary_start = .;
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KEEP (*(.vectors))
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KEEP (*(.binary_info_header))
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__binary_info_header_end = .;
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KEEP (*(.embedded_block))
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__embedded_block_end = .;
|
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KEEP (*(.reset))
|
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}
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.rodata : {
|
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/* segments not marked as .flashdata are instead pulled into .data (in RAM) to avoid accidental flash accesses */
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*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.flashdata*)))
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. = ALIGN(4);
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} > FLASH
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.ARM.extab :
|
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{
|
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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} > FLASH
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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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|
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/* Machine inspectable binary information */
|
||||
. = ALIGN(4);
|
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__binary_info_start = .;
|
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.binary_info :
|
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{
|
||||
KEEP(*(.binary_info.keep.*))
|
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*(.binary_info.*)
|
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} > FLASH
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__binary_info_end = .;
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. = ALIGN(4);
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|
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/* Vector table goes first in RAM, to avoid large alignment hole */
|
||||
.ram_vector_table (NOLOAD): {
|
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*(.ram_vector_table)
|
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} > RAM
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|
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.uninitialized_data (NOLOAD): {
|
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. = ALIGN(4);
|
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*(.uninitialized_data*)
|
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} > RAM
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.text : {
|
||||
__ram_text_start__ = .;
|
||||
*(.init)
|
||||
*(.text*)
|
||||
*(.fini)
|
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/* Pull all c'tors into .text */
|
||||
*crtbegin.o(.ctors)
|
||||
*crtbegin?.o(.ctors)
|
||||
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
|
||||
*(SORT(.ctors.*))
|
||||
*(.ctors)
|
||||
/* Followed by destructors */
|
||||
*crtbegin.o(.dtors)
|
||||
*crtbegin?.o(.dtors)
|
||||
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
|
||||
*(SORT(.dtors.*))
|
||||
*(.dtors)
|
||||
|
||||
*(.eh_frame*)
|
||||
. = ALIGN(4);
|
||||
__ram_text_end__ = .;
|
||||
} > RAM AT> FLASH
|
||||
__ram_text_source__ = LOADADDR(.text);
|
||||
. = ALIGN(4);
|
||||
|
||||
.data : {
|
||||
__data_start__ = .;
|
||||
*(vtable)
|
||||
|
||||
*(.time_critical*)
|
||||
|
||||
. = ALIGN(4);
|
||||
*(.rodata*)
|
||||
. = ALIGN(4);
|
||||
|
||||
*(.data*)
|
||||
|
||||
. = ALIGN(4);
|
||||
*(.after_data.*)
|
||||
. = ALIGN(4);
|
||||
/* preinit data */
|
||||
PROVIDE_HIDDEN (__mutex_array_start = .);
|
||||
KEEP(*(SORT(.mutex_array.*)))
|
||||
KEEP(*(.mutex_array))
|
||||
PROVIDE_HIDDEN (__mutex_array_end = .);
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||||
|
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. = ALIGN(4);
|
||||
/* preinit data */
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||||
PROVIDE_HIDDEN (__preinit_array_start = .);
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||||
KEEP(*(SORT(.preinit_array.*)))
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KEEP(*(.preinit_array))
|
||||
PROVIDE_HIDDEN (__preinit_array_end = .);
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|
||||
. = ALIGN(4);
|
||||
/* init data */
|
||||
PROVIDE_HIDDEN (__init_array_start = .);
|
||||
KEEP(*(SORT(.init_array.*)))
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||||
KEEP(*(.init_array))
|
||||
PROVIDE_HIDDEN (__init_array_end = .);
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||||
|
||||
. = ALIGN(4);
|
||||
/* finit data */
|
||||
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||
*(SORT(.fini_array.*))
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||||
*(.fini_array)
|
||||
PROVIDE_HIDDEN (__fini_array_end = .);
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||||
|
||||
*(.jcr)
|
||||
. = ALIGN(4);
|
||||
} > RAM AT> FLASH
|
||||
|
||||
.tdata : {
|
||||
. = ALIGN(4);
|
||||
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
||||
/* All data end */
|
||||
__tdata_end = .;
|
||||
} > RAM AT> FLASH
|
||||
PROVIDE(__data_end__ = .);
|
||||
|
||||
/* __etext is (for backwards compatibility) the name of the .data init source pointer (...) */
|
||||
__etext = LOADADDR(.data);
|
||||
|
||||
.tbss (NOLOAD) : {
|
||||
. = ALIGN(4);
|
||||
__bss_start__ = .;
|
||||
__tls_base = .;
|
||||
*(.tbss .tbss.* .gnu.linkonce.tb.*)
|
||||
*(.tcommon)
|
||||
|
||||
__tls_end = .;
|
||||
} > RAM
|
||||
|
||||
.bss : {
|
||||
. = ALIGN(4);
|
||||
__tbss_end = .;
|
||||
|
||||
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
|
||||
*(COMMON)
|
||||
. = ALIGN(4);
|
||||
__bss_end__ = .;
|
||||
} > RAM
|
||||
|
||||
.heap (NOLOAD):
|
||||
{
|
||||
__end__ = .;
|
||||
end = __end__;
|
||||
KEEP(*(.heap*))
|
||||
} > RAM
|
||||
/* historically on GCC sbrk was growing past __HeapLimit to __StackLimit, however
|
||||
to be more compatible, we now set __HeapLimit explicitly to where the end of the heap is */
|
||||
__HeapLimit = ORIGIN(RAM) + LENGTH(RAM);
|
||||
|
||||
/* Start and end symbols must be word-aligned */
|
||||
.scratch_x : {
|
||||
__scratch_x_start__ = .;
|
||||
*(.scratch_x.*)
|
||||
. = ALIGN(4);
|
||||
__scratch_x_end__ = .;
|
||||
} > SCRATCH_X AT > FLASH
|
||||
__scratch_x_source__ = LOADADDR(.scratch_x);
|
||||
|
||||
.scratch_y : {
|
||||
__scratch_y_start__ = .;
|
||||
*(.scratch_y.*)
|
||||
. = ALIGN(4);
|
||||
__scratch_y_end__ = .;
|
||||
} > SCRATCH_Y AT > FLASH
|
||||
__scratch_y_source__ = LOADADDR(.scratch_y);
|
||||
|
||||
/* .stack*_dummy section doesn't contains any symbols. It is only
|
||||
* used for linker to calculate size of stack sections, and assign
|
||||
* values to stack symbols later
|
||||
*
|
||||
* stack1 section may be empty/missing if platform_launch_core1 is not used */
|
||||
|
||||
/* by default we put core 0 stack at the end of scratch Y, so that if core 1
|
||||
* stack is not used then all of SCRATCH_X is free.
|
||||
*/
|
||||
.stack1_dummy (NOLOAD):
|
||||
{
|
||||
*(.stack1*)
|
||||
} > SCRATCH_X
|
||||
.stack_dummy (NOLOAD):
|
||||
{
|
||||
KEEP(*(.stack*))
|
||||
} > SCRATCH_Y
|
||||
|
||||
.flash_end : {
|
||||
KEEP(*(.embedded_end_block*))
|
||||
PROVIDE(__flash_binary_end = .);
|
||||
} > FLASH
|
||||
|
||||
/* stack limit is poorly named, but historically is maximum heap ptr */
|
||||
__StackLimit = ORIGIN(RAM) + LENGTH(RAM);
|
||||
__StackOneTop = ORIGIN(SCRATCH_X) + LENGTH(SCRATCH_X);
|
||||
__StackTop = ORIGIN(SCRATCH_Y) + LENGTH(SCRATCH_Y);
|
||||
__StackOneBottom = __StackOneTop - SIZEOF(.stack1_dummy);
|
||||
__StackBottom = __StackTop - SIZEOF(.stack_dummy);
|
||||
PROVIDE(__stack = __StackTop);
|
||||
|
||||
/* picolibc and LLVM */
|
||||
PROVIDE (__heap_start = __end__);
|
||||
PROVIDE (__heap_end = __HeapLimit);
|
||||
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
|
||||
PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1));
|
||||
PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
|
||||
|
||||
/* llvm-libc */
|
||||
PROVIDE (_end = __end__);
|
||||
PROVIDE (__llvm_libc_heap_limit = __HeapLimit);
|
||||
|
||||
/* Check if data + heap + stack exceeds RAM limit */
|
||||
ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed")
|
||||
|
||||
ASSERT( __binary_info_header_end - __logical_binary_start <= 256, "Binary info must be in first 256 bytes of the binary")
|
||||
/* todo assert on extra code */
|
||||
}
|
||||
|
||||
286
lib/main/pico-sdk/rp2_common/pico_crt0/rp2040/memmap_default.ld
Normal file
286
lib/main/pico-sdk/rp2_common/pico_crt0/rp2040/memmap_default.ld
Normal file
|
|
@ -0,0 +1,286 @@
|
|||
/* Based on GCC ARM embedded samples.
|
||||
Defines the following symbols for use by code:
|
||||
__exidx_start
|
||||
__exidx_end
|
||||
__etext
|
||||
__data_start__
|
||||
__preinit_array_start
|
||||
__preinit_array_end
|
||||
__init_array_start
|
||||
__init_array_end
|
||||
__fini_array_start
|
||||
__fini_array_end
|
||||
__data_end__
|
||||
__bss_start__
|
||||
__bss_end__
|
||||
__end__
|
||||
end
|
||||
__HeapLimit
|
||||
__StackLimit
|
||||
__StackTop
|
||||
__stack (== StackTop)
|
||||
*/
|
||||
|
||||
MEMORY
|
||||
{
|
||||
INCLUDE "pico_flash_region.ld"
|
||||
RAM(rwx) : ORIGIN = 0x20000000, LENGTH = 256k
|
||||
SCRATCH_X(rwx) : ORIGIN = 0x20040000, LENGTH = 4k
|
||||
SCRATCH_Y(rwx) : ORIGIN = 0x20041000, LENGTH = 4k
|
||||
}
|
||||
|
||||
ENTRY(_entry_point)
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
/* Second stage bootloader is prepended to the image. It must be 256 bytes big
|
||||
and checksummed. It is usually built by the boot_stage2 target
|
||||
in the Raspberry Pi Pico SDK
|
||||
*/
|
||||
|
||||
.flash_begin : {
|
||||
__flash_binary_start = .;
|
||||
} > FLASH
|
||||
|
||||
.boot2 : {
|
||||
__boot2_start__ = .;
|
||||
KEEP (*(.boot2))
|
||||
__boot2_end__ = .;
|
||||
} > FLASH
|
||||
|
||||
ASSERT(__boot2_end__ - __boot2_start__ == 256,
|
||||
"ERROR: Pico second stage bootloader must be 256 bytes in size")
|
||||
|
||||
/* The second stage will always enter the image at the start of .text.
|
||||
The debugger will use the ELF entry point, which is the _entry_point
|
||||
symbol if present, otherwise defaults to start of .text.
|
||||
This can be used to transfer control back to the bootrom on debugger
|
||||
launches only, to perform proper flash setup.
|
||||
*/
|
||||
|
||||
.text : {
|
||||
__logical_binary_start = .;
|
||||
KEEP (*(.vectors))
|
||||
KEEP (*(.binary_info_header))
|
||||
__binary_info_header_end = .;
|
||||
KEEP (*(.embedded_block))
|
||||
__embedded_block_end = .;
|
||||
KEEP (*(.reset))
|
||||
/* TODO revisit this now memset/memcpy/float in ROM */
|
||||
/* bit of a hack right now to exclude all floating point and time critical (e.g. memset, memcpy) code from
|
||||
* FLASH ... we will include any thing excluded here in .data below by default */
|
||||
*(.init)
|
||||
*(EXCLUDE_FILE(*libgcc.a: *libc.a:*lib_a-mem*.o *libm.a:) .text*)
|
||||
*(.fini)
|
||||
/* Pull all c'tors into .text */
|
||||
*crtbegin.o(.ctors)
|
||||
*crtbegin?.o(.ctors)
|
||||
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
|
||||
*(SORT(.ctors.*))
|
||||
*(.ctors)
|
||||
/* Followed by destructors */
|
||||
*crtbegin.o(.dtors)
|
||||
*crtbegin?.o(.dtors)
|
||||
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
|
||||
*(SORT(.dtors.*))
|
||||
*(.dtors)
|
||||
|
||||
. = ALIGN(4);
|
||||
/* preinit data */
|
||||
PROVIDE_HIDDEN (__preinit_array_start = .);
|
||||
KEEP(*(SORT(.preinit_array.*)))
|
||||
KEEP(*(.preinit_array))
|
||||
PROVIDE_HIDDEN (__preinit_array_end = .);
|
||||
|
||||
. = ALIGN(4);
|
||||
/* init data */
|
||||
PROVIDE_HIDDEN (__init_array_start = .);
|
||||
KEEP(*(SORT(.init_array.*)))
|
||||
KEEP(*(.init_array))
|
||||
PROVIDE_HIDDEN (__init_array_end = .);
|
||||
|
||||
. = ALIGN(4);
|
||||
/* finit data */
|
||||
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||
*(SORT(.fini_array.*))
|
||||
*(.fini_array)
|
||||
PROVIDE_HIDDEN (__fini_array_end = .);
|
||||
|
||||
*(.eh_frame*)
|
||||
. = ALIGN(4);
|
||||
} > FLASH
|
||||
|
||||
.rodata : {
|
||||
*(EXCLUDE_FILE(*libgcc.a: *libc.a:*lib_a-mem*.o *libm.a:) .rodata*)
|
||||
. = ALIGN(4);
|
||||
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.flashdata*)))
|
||||
. = ALIGN(4);
|
||||
} > FLASH
|
||||
|
||||
.ARM.extab :
|
||||
{
|
||||
*(.ARM.extab* .gnu.linkonce.armextab.*)
|
||||
} > FLASH
|
||||
|
||||
__exidx_start = .;
|
||||
.ARM.exidx :
|
||||
{
|
||||
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
|
||||
} > FLASH
|
||||
__exidx_end = .;
|
||||
|
||||
/* Machine inspectable binary information */
|
||||
. = ALIGN(4);
|
||||
__binary_info_start = .;
|
||||
.binary_info :
|
||||
{
|
||||
KEEP(*(.binary_info.keep.*))
|
||||
*(.binary_info.*)
|
||||
} > FLASH
|
||||
__binary_info_end = .;
|
||||
. = ALIGN(4);
|
||||
|
||||
.ram_vector_table (NOLOAD): {
|
||||
*(.ram_vector_table)
|
||||
} > RAM
|
||||
|
||||
.uninitialized_data (NOLOAD): {
|
||||
. = ALIGN(4);
|
||||
*(.uninitialized_data*)
|
||||
} > RAM
|
||||
|
||||
.data : {
|
||||
__data_start__ = .;
|
||||
*(vtable)
|
||||
|
||||
*(.time_critical*)
|
||||
|
||||
/* remaining .text and .rodata; i.e. stuff we exclude above because we want it in RAM */
|
||||
*(.text*)
|
||||
. = ALIGN(4);
|
||||
*(.rodata*)
|
||||
. = ALIGN(4);
|
||||
|
||||
*(.data*)
|
||||
|
||||
. = ALIGN(4);
|
||||
*(.after_data.*)
|
||||
. = ALIGN(4);
|
||||
/* preinit data */
|
||||
PROVIDE_HIDDEN (__mutex_array_start = .);
|
||||
KEEP(*(SORT(.mutex_array.*)))
|
||||
KEEP(*(.mutex_array))
|
||||
PROVIDE_HIDDEN (__mutex_array_end = .);
|
||||
|
||||
. = ALIGN(4);
|
||||
*(.jcr)
|
||||
. = ALIGN(4);
|
||||
} > RAM AT> FLASH
|
||||
|
||||
.tdata : {
|
||||
. = ALIGN(4);
|
||||
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
||||
/* All data end */
|
||||
__tdata_end = .;
|
||||
} > RAM AT> FLASH
|
||||
PROVIDE(__data_end__ = .);
|
||||
|
||||
/* __etext is (for backwards compatibility) the name of the .data init source pointer (...) */
|
||||
__etext = LOADADDR(.data);
|
||||
|
||||
.tbss (NOLOAD) : {
|
||||
. = ALIGN(4);
|
||||
__bss_start__ = .;
|
||||
__tls_base = .;
|
||||
*(.tbss .tbss.* .gnu.linkonce.tb.*)
|
||||
*(.tcommon)
|
||||
|
||||
__tls_end = .;
|
||||
} > RAM
|
||||
|
||||
.bss (NOLOAD) : {
|
||||
. = ALIGN(4);
|
||||
__tbss_end = .;
|
||||
|
||||
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
|
||||
*(COMMON)
|
||||
. = ALIGN(4);
|
||||
__bss_end__ = .;
|
||||
} > RAM
|
||||
|
||||
.heap (NOLOAD):
|
||||
{
|
||||
__end__ = .;
|
||||
end = __end__;
|
||||
KEEP(*(.heap*))
|
||||
} > RAM
|
||||
/* historically on GCC sbrk was growing past __HeapLimit to __StackLimit, however
|
||||
to be more compatible, we now set __HeapLimit explicitly to where the end of the heap is */
|
||||
__HeapLimit = ORIGIN(RAM) + LENGTH(RAM);
|
||||
|
||||
/* Start and end symbols must be word-aligned */
|
||||
.scratch_x : {
|
||||
__scratch_x_start__ = .;
|
||||
*(.scratch_x.*)
|
||||
. = ALIGN(4);
|
||||
__scratch_x_end__ = .;
|
||||
} > SCRATCH_X AT > FLASH
|
||||
__scratch_x_source__ = LOADADDR(.scratch_x);
|
||||
|
||||
.scratch_y : {
|
||||
__scratch_y_start__ = .;
|
||||
*(.scratch_y.*)
|
||||
. = ALIGN(4);
|
||||
__scratch_y_end__ = .;
|
||||
} > SCRATCH_Y AT > FLASH
|
||||
__scratch_y_source__ = LOADADDR(.scratch_y);
|
||||
|
||||
/* .stack*_dummy section doesn't contains any symbols. It is only
|
||||
* used for linker to calculate size of stack sections, and assign
|
||||
* values to stack symbols later
|
||||
*
|
||||
* stack1 section may be empty/missing if platform_launch_core1 is not used */
|
||||
|
||||
/* by default we put core 0 stack at the end of scratch Y, so that if core 1
|
||||
* stack is not used then all of SCRATCH_X is free.
|
||||
*/
|
||||
.stack1_dummy (NOLOAD):
|
||||
{
|
||||
*(.stack1*)
|
||||
} > SCRATCH_X
|
||||
.stack_dummy (NOLOAD):
|
||||
{
|
||||
KEEP(*(.stack*))
|
||||
} > SCRATCH_Y
|
||||
|
||||
.flash_end : {
|
||||
KEEP(*(.embedded_end_block*))
|
||||
PROVIDE(__flash_binary_end = .);
|
||||
} > FLASH
|
||||
|
||||
/* stack limit is poorly named, but historically is maximum heap ptr */
|
||||
__StackLimit = ORIGIN(RAM) + LENGTH(RAM);
|
||||
__StackOneTop = ORIGIN(SCRATCH_X) + LENGTH(SCRATCH_X);
|
||||
__StackTop = ORIGIN(SCRATCH_Y) + LENGTH(SCRATCH_Y);
|
||||
__StackOneBottom = __StackOneTop - SIZEOF(.stack1_dummy);
|
||||
__StackBottom = __StackTop - SIZEOF(.stack_dummy);
|
||||
PROVIDE(__stack = __StackTop);
|
||||
|
||||
/* picolibc and LLVM */
|
||||
PROVIDE (__heap_start = __end__);
|
||||
PROVIDE (__heap_end = __HeapLimit);
|
||||
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
|
||||
PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1));
|
||||
PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
|
||||
|
||||
/* llvm-libc */
|
||||
PROVIDE (_end = __end__);
|
||||
PROVIDE (__llvm_libc_heap_limit = __HeapLimit);
|
||||
|
||||
/* Check if data + heap + stack exceeds RAM limit */
|
||||
ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed")
|
||||
|
||||
ASSERT( __binary_info_header_end - __logical_binary_start <= 256, "Binary info must be in first 256 bytes of the binary")
|
||||
/* todo assert on extra code */
|
||||
}
|
||||
|
||||
249
lib/main/pico-sdk/rp2_common/pico_crt0/rp2040/memmap_no_flash.ld
Normal file
249
lib/main/pico-sdk/rp2_common/pico_crt0/rp2040/memmap_no_flash.ld
Normal file
|
|
@ -0,0 +1,249 @@
|
|||
/* Based on GCC ARM embedded samples.
|
||||
Defines the following symbols for use by code:
|
||||
__exidx_start
|
||||
__exidx_end
|
||||
__etext
|
||||
__data_start__
|
||||
__preinit_array_start
|
||||
__preinit_array_end
|
||||
__init_array_start
|
||||
__init_array_end
|
||||
__fini_array_start
|
||||
__fini_array_end
|
||||
__data_end__
|
||||
__bss_start__
|
||||
__bss_end__
|
||||
__end__
|
||||
end
|
||||
__HeapLimit
|
||||
__StackLimit
|
||||
__StackTop
|
||||
__stack (== StackTop)
|
||||
*/
|
||||
|
||||
MEMORY
|
||||
{
|
||||
RAM(rwx) : ORIGIN = 0x20000000, LENGTH = 256k
|
||||
SCRATCH_X(rwx) : ORIGIN = 0x20040000, LENGTH = 4k
|
||||
SCRATCH_Y(rwx) : ORIGIN = 0x20041000, LENGTH = 4k
|
||||
}
|
||||
|
||||
ENTRY(_entry_point)
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
/* Note in NO_FLASH builds the entry point for both the bootrom, and debugger
|
||||
entry (ELF entry point), are *first* in the image, and the vector table
|
||||
follows immediately afterward. This is because the bootrom enters RAM
|
||||
binaries directly at their lowest address (preferring main RAM over XIP
|
||||
cache-as-SRAM if both are used).
|
||||
*/
|
||||
|
||||
.text : {
|
||||
__logical_binary_start = .;
|
||||
__reset_start = .;
|
||||
KEEP (*(.reset))
|
||||
__reset_end = .;
|
||||
KEEP (*(.binary_info_header))
|
||||
__binary_info_header_end = .;
|
||||
KEEP (*(.embedded_block))
|
||||
__embedded_block_end = .;
|
||||
. = ALIGN(256);
|
||||
KEEP (*(.vectors))
|
||||
*(.time_critical*)
|
||||
*(.text*)
|
||||
. = ALIGN(4);
|
||||
*(.init)
|
||||
*(.fini)
|
||||
/* Pull all c'tors into .text */
|
||||
*crtbegin.o(.ctors)
|
||||
*crtbegin?.o(.ctors)
|
||||
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
|
||||
*(SORT(.ctors.*))
|
||||
*(.ctors)
|
||||
/* Followed by destructors */
|
||||
*crtbegin.o(.dtors)
|
||||
*crtbegin?.o(.dtors)
|
||||
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
|
||||
*(SORT(.dtors.*))
|
||||
*(.dtors)
|
||||
|
||||
*(.eh_frame*)
|
||||
} > RAM
|
||||
|
||||
.rodata : {
|
||||
. = ALIGN(4);
|
||||
*(.rodata*)
|
||||
. = ALIGN(4);
|
||||
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.flashdata*)))
|
||||
. = ALIGN(4);
|
||||
} > RAM
|
||||
|
||||
.ARM.extab :
|
||||
{
|
||||
*(.ARM.extab* .gnu.linkonce.armextab.*)
|
||||
} > RAM
|
||||
|
||||
__exidx_start = .;
|
||||
.ARM.exidx :
|
||||
{
|
||||
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
|
||||
} > RAM
|
||||
__exidx_end = .;
|
||||
|
||||
/* Machine inspectable binary information */
|
||||
. = ALIGN(4);
|
||||
__binary_info_start = .;
|
||||
.binary_info :
|
||||
{
|
||||
KEEP(*(.binary_info.keep.*))
|
||||
*(.binary_info.*)
|
||||
} > RAM
|
||||
__binary_info_end = .;
|
||||
. = ALIGN(4);
|
||||
|
||||
.data : {
|
||||
__data_start__ = .;
|
||||
*(vtable)
|
||||
*(.data*)
|
||||
|
||||
. = ALIGN(4);
|
||||
*(.after_data.*)
|
||||
. = ALIGN(4);
|
||||
/* preinit data */
|
||||
PROVIDE_HIDDEN (__mutex_array_start = .);
|
||||
KEEP(*(SORT(.mutex_array.*)))
|
||||
KEEP(*(.mutex_array))
|
||||
PROVIDE_HIDDEN (__mutex_array_end = .);
|
||||
|
||||
. = ALIGN(4);
|
||||
/* preinit data */
|
||||
PROVIDE_HIDDEN (__preinit_array_start = .);
|
||||
KEEP(*(SORT(.preinit_array.*)))
|
||||
KEEP(*(.preinit_array))
|
||||
PROVIDE_HIDDEN (__preinit_array_end = .);
|
||||
|
||||
. = ALIGN(4);
|
||||
/* init data */
|
||||
PROVIDE_HIDDEN (__init_array_start = .);
|
||||
KEEP(*(SORT(.init_array.*)))
|
||||
KEEP(*(.init_array))
|
||||
PROVIDE_HIDDEN (__init_array_end = .);
|
||||
|
||||
. = ALIGN(4);
|
||||
/* finit data */
|
||||
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||
*(SORT(.fini_array.*))
|
||||
*(.fini_array)
|
||||
PROVIDE_HIDDEN (__fini_array_end = .);
|
||||
|
||||
*(.jcr)
|
||||
. = ALIGN(4);
|
||||
} > RAM
|
||||
|
||||
.tdata : {
|
||||
. = ALIGN(4);
|
||||
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
||||
/* All data end */
|
||||
__tdata_end = .;
|
||||
} > RAM
|
||||
PROVIDE(__data_end__ = .);
|
||||
|
||||
.uninitialized_data (NOLOAD): {
|
||||
. = ALIGN(4);
|
||||
*(.uninitialized_data*)
|
||||
} > RAM
|
||||
/* __etext is (for backwards compatibility) the name of the .data init source pointer (...) */
|
||||
__etext = LOADADDR(.data);
|
||||
|
||||
.tbss (NOLOAD) : {
|
||||
. = ALIGN(4);
|
||||
__bss_start__ = .;
|
||||
__tls_base = .;
|
||||
*(.tbss .tbss.* .gnu.linkonce.tb.*)
|
||||
*(.tcommon)
|
||||
|
||||
__tls_end = .;
|
||||
} > RAM
|
||||
|
||||
.bss (NOLOAD) : {
|
||||
. = ALIGN(4);
|
||||
__tbss_end = .;
|
||||
|
||||
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
|
||||
*(COMMON)
|
||||
. = ALIGN(4);
|
||||
__bss_end__ = .;
|
||||
} > RAM
|
||||
|
||||
.heap (NOLOAD):
|
||||
{
|
||||
__end__ = .;
|
||||
end = __end__;
|
||||
KEEP(*(.heap*))
|
||||
} > RAM
|
||||
/* historically on GCC sbrk was growing past __HeapLimit to __StackLimit, however
|
||||
to be more compatible, we now set __HeapLimit explicitly to where the end of the heap is */
|
||||
__HeapLimit = ORIGIN(RAM) + LENGTH(RAM);
|
||||
|
||||
/* Start and end symbols must be word-aligned */
|
||||
.scratch_x : {
|
||||
__scratch_x_start__ = .;
|
||||
*(.scratch_x.*)
|
||||
. = ALIGN(4);
|
||||
__scratch_x_end__ = .;
|
||||
} > SCRATCH_X
|
||||
__scratch_x_source__ = LOADADDR(.scratch_x);
|
||||
|
||||
.scratch_y : {
|
||||
__scratch_y_start__ = .;
|
||||
*(.scratch_y.*)
|
||||
. = ALIGN(4);
|
||||
__scratch_y_end__ = .;
|
||||
} > SCRATCH_Y
|
||||
__scratch_y_source__ = LOADADDR(.scratch_y);
|
||||
|
||||
/* .stack*_dummy section doesn't contains any symbols. It is only
|
||||
* used for linker to calculate size of stack sections, and assign
|
||||
* values to stack symbols later
|
||||
*
|
||||
* stack1 section may be empty/missing if platform_launch_core1 is not used */
|
||||
|
||||
/* by default we put core 0 stack at the end of scratch Y, so that if core 1
|
||||
* stack is not used then all of SCRATCH_X is free.
|
||||
*/
|
||||
.stack1_dummy (NOLOAD):
|
||||
{
|
||||
*(.stack1*)
|
||||
} > SCRATCH_X
|
||||
.stack_dummy (NOLOAD):
|
||||
{
|
||||
KEEP(*(.stack*))
|
||||
} > SCRATCH_Y
|
||||
|
||||
/* stack limit is poorly named, but historically is maximum heap ptr */
|
||||
__StackLimit = ORIGIN(RAM) + LENGTH(RAM);
|
||||
__StackOneTop = ORIGIN(SCRATCH_X) + LENGTH(SCRATCH_X);
|
||||
__StackTop = ORIGIN(SCRATCH_Y) + LENGTH(SCRATCH_Y);
|
||||
__StackOneBottom = __StackOneTop - SIZEOF(.stack1_dummy);
|
||||
__StackBottom = __StackTop - SIZEOF(.stack_dummy);
|
||||
PROVIDE(__stack = __StackTop);
|
||||
|
||||
/* picolibc and LLVM */
|
||||
PROVIDE (__heap_start = __end__);
|
||||
PROVIDE (__heap_end = __HeapLimit);
|
||||
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
|
||||
PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1));
|
||||
PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
|
||||
|
||||
/* llvm-libc */
|
||||
PROVIDE (_end = __end__);
|
||||
PROVIDE (__llvm_libc_heap_limit = __HeapLimit);
|
||||
|
||||
/* Check if data + heap + stack exceeds RAM limit */
|
||||
ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed")
|
||||
|
||||
ASSERT( __binary_info_header_end - __logical_binary_start <= 256, "Binary info must be in first 256 bytes of the binary")
|
||||
/* todo assert on extra code */
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue