kopia lustrzana https://github.com/pimoroni/pimoroni-pico
Porównaj commity
4 Commity
cfcbaceb64
...
d3691b625b
Autor | SHA1 | Data |
---|---|---|
Phil Howard | d3691b625b | |
Phil Howard | 15c170e160 | |
Phil Howard | 3b1c8a958a | |
Phil Howard | b9cdcf1e93 |
|
@ -92,6 +92,18 @@ jobs:
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source $BUILD_TOOLS
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source $BUILD_TOOLS
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hack_patch_micropython_disable_exceptions
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hack_patch_micropython_disable_exceptions
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- name: "HACK: CMakeLists.txt Print Memory Usage"
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shell: bash
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run: |
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source $BUILD_TOOLS
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hack_patch_micropython_print_memory_usage
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- name: "HACK: CMakeLists.txt Enable Custom Linker Patch"
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shell: bash
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run: |
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source $BUILD_TOOLS
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hack_patch_micropython_enable_custom_linker
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- name: "HACK: Pico SDK Patch"
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- name: "HACK: Pico SDK Patch"
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shell: bash
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shell: bash
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run: |
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run: |
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@ -49,6 +49,20 @@ function hack_patch_micropython_disable_exceptions {
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cd ../
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cd ../
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}
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}
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function hack_patch_micropython_print_memory_usage {
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cd micropython
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git apply $PIMORONI_PICO_DIR/micropython/micropython_print_memory_usage.patch
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cd ../
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}
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function hack_patch_micropython_enable_custom_linker {
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if [ -f "$MICROPY_BOARD_DIR/memmap_mp.ld" ]; then
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cd micropython
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git apply $PIMORONI_PICO_DIR/micropython/micropython_board_linker.patch
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cd ../
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fi
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}
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function hack_patch_pico_sdk {
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function hack_patch_pico_sdk {
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# pico-sdk-patch.sh will apply the patch if it exists
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# pico-sdk-patch.sh will apply the patch if it exists
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cd micropython
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cd micropython
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@ -0,0 +1,274 @@
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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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/* Default RP2 flash size. Assumes no user filesystem. */
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_flash_start = 0x10000000;
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_flash_size = 8192k;
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_flash_app_size = 1024k;
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_flash_fs_size = _flash_size - _flash_app_size;
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_flash_fs_start = _flash_start + _flash_app_size;
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MEMORY
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{
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FLASH(rx) : ORIGIN = _flash_start, LENGTH = _flash_size
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APP(rx) : ORIGIN = _flash_start, LENGTH = _flash_app_size
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FILESYSTEM(r) : ORIGIN = _flash_fs_start, LENGTH = _flash_fs_size
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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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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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} > APP
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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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} > APP
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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 (*(.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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/* Change for MicroPython... exclude gc.c, parse.c, vm.c from flash */
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*(EXCLUDE_FILE(*libgcc.a: *libc.a: *lib_a-mem*.o *libm.a: *gc.c.obj *vm.c.obj *parse.c.obj) .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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*(.eh_frame*)
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. = ALIGN(4);
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} > APP
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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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} > APP
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.ARM.extab :
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{
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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} > APP
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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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} > APP
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__exidx_end = .;
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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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} > APP
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__binary_info_end = .;
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. = ALIGN(4);
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/* End of .text-like segments */
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__etext = .;
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.ram_vector_table (COPY): {
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*(.ram_vector_table)
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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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/* 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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*(.data*)
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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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|
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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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|
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||||||
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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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|
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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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|
|
||||||
|
*(.jcr)
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. = ALIGN(4);
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/* All data end */
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__data_end__ = .;
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} > RAM AT> APP
|
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|
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|
.uninitialized_data (COPY): {
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. = ALIGN(4);
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|
*(.uninitialized_data*)
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|
} > RAM
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|
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||||||
|
/* bss without zero init on startup */
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|
.uninitialized_bss (NOLOAD): {
|
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. = ALIGN(4);
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|
*(.uninitialized_bss*)
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|
} > RAM
|
||||||
|
|
||||||
|
/* Start and end symbols must be word-aligned */
|
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|
.scratch_x : {
|
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|
__scratch_x_start__ = .;
|
||||||
|
*(.scratch_x.*)
|
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|
. = ALIGN(4);
|
||||||
|
__scratch_x_end__ = .;
|
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|
} > SCRATCH_X AT > APP
|
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|
__scratch_x_source__ = LOADADDR(.scratch_x);
|
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|
|
||||||
|
.scratch_y : {
|
||||||
|
__scratch_y_start__ = .;
|
||||||
|
*(.scratch_y.*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__scratch_y_end__ = .;
|
||||||
|
} > SCRATCH_Y AT > APP
|
||||||
|
__scratch_y_source__ = LOADADDR(.scratch_y);
|
||||||
|
|
||||||
|
.bss : {
|
||||||
|
. = ALIGN(4);
|
||||||
|
__bss_start__ = .;
|
||||||
|
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
|
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|
*(COMMON)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__bss_end__ = .;
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
.heap (COPY):
|
||||||
|
{
|
||||||
|
__end__ = .;
|
||||||
|
end = __end__;
|
||||||
|
*(.heap*)
|
||||||
|
__HeapLimit = .;
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* .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 (COPY):
|
||||||
|
{
|
||||||
|
*(.stack1*)
|
||||||
|
} > SCRATCH_X
|
||||||
|
.stack_dummy (COPY):
|
||||||
|
{
|
||||||
|
*(.stack*)
|
||||||
|
} > SCRATCH_Y
|
||||||
|
|
||||||
|
.flash_end : {
|
||||||
|
__flash_binary_end = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
/* stack limit is poorly named, but historically is maximum heap ptr */
|
||||||
|
__StackLimit = __bss_end__ + __micropy_c_heap_size__;
|
||||||
|
|
||||||
|
/* Define start and end of GC heap */
|
||||||
|
__GcHeapStart = __StackLimit; /* after the C heap (sbrk limit) */
|
||||||
|
__GcHeapEnd = ORIGIN(RAM) + LENGTH(RAM);
|
||||||
|
|
||||||
|
/* Define memory for the C stack */
|
||||||
|
__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);
|
||||||
|
|
||||||
|
/* Check GC heap is at least 128 KB */
|
||||||
|
/* On a RP2040 using all SRAM this should always be the case. */
|
||||||
|
ASSERT((__GcHeapEnd - __GcHeapStart) > 128*1024, "GcHeap is too small")
|
||||||
|
|
||||||
|
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 */
|
||||||
|
}
|
|
@ -0,0 +1,274 @@
|
||||||
|
/* 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)
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Default RP2 flash size. Assumes no user filesystem. */
|
||||||
|
_flash_start = 0x10000000;
|
||||||
|
_flash_size = 2048k;
|
||||||
|
_flash_app_size = 640k;
|
||||||
|
_flash_fs_size = _flash_size - _flash_app_size;
|
||||||
|
_flash_fs_start = _flash_start + _flash_app_size;
|
||||||
|
|
||||||
|
MEMORY
|
||||||
|
{
|
||||||
|
FLASH(rx) : ORIGIN = _flash_start, LENGTH = _flash_size
|
||||||
|
APP(rx) : ORIGIN = _flash_start, LENGTH = _flash_app_size
|
||||||
|
FILESYSTEM(r) : ORIGIN = _flash_fs_start, LENGTH = _flash_fs_size
|
||||||
|
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 = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
.boot2 : {
|
||||||
|
__boot2_start__ = .;
|
||||||
|
KEEP (*(.boot2))
|
||||||
|
__boot2_end__ = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
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 (*(.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)
|
||||||
|
/* Change for MicroPython... exclude gc.c, parse.c, vm.c from flash */
|
||||||
|
*(EXCLUDE_FILE(*libgcc.a: *libc.a: *lib_a-mem*.o *libm.a: *gc.c.obj *vm.c.obj *parse.c.obj) .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)
|
||||||
|
|
||||||
|
*(.eh_frame*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
.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);
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
.ARM.extab :
|
||||||
|
{
|
||||||
|
*(.ARM.extab* .gnu.linkonce.armextab.*)
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
__exidx_start = .;
|
||||||
|
.ARM.exidx :
|
||||||
|
{
|
||||||
|
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
|
||||||
|
} > APP
|
||||||
|
__exidx_end = .;
|
||||||
|
|
||||||
|
/* Machine inspectable binary information */
|
||||||
|
. = ALIGN(4);
|
||||||
|
__binary_info_start = .;
|
||||||
|
.binary_info :
|
||||||
|
{
|
||||||
|
KEEP(*(.binary_info.keep.*))
|
||||||
|
*(.binary_info.*)
|
||||||
|
} > APP
|
||||||
|
__binary_info_end = .;
|
||||||
|
. = ALIGN(4);
|
||||||
|
|
||||||
|
/* End of .text-like segments */
|
||||||
|
__etext = .;
|
||||||
|
|
||||||
|
.ram_vector_table (COPY): {
|
||||||
|
*(.ram_vector_table)
|
||||||
|
} > 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);
|
||||||
|
/* 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);
|
||||||
|
/* All data end */
|
||||||
|
__data_end__ = .;
|
||||||
|
} > RAM AT> APP
|
||||||
|
|
||||||
|
.uninitialized_data (COPY): {
|
||||||
|
. = ALIGN(4);
|
||||||
|
*(.uninitialized_data*)
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* bss without zero init on startup */
|
||||||
|
.uninitialized_bss (NOLOAD): {
|
||||||
|
. = ALIGN(4);
|
||||||
|
*(.uninitialized_bss*)
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* Start and end symbols must be word-aligned */
|
||||||
|
.scratch_x : {
|
||||||
|
__scratch_x_start__ = .;
|
||||||
|
*(.scratch_x.*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__scratch_x_end__ = .;
|
||||||
|
} > SCRATCH_X AT > APP
|
||||||
|
__scratch_x_source__ = LOADADDR(.scratch_x);
|
||||||
|
|
||||||
|
.scratch_y : {
|
||||||
|
__scratch_y_start__ = .;
|
||||||
|
*(.scratch_y.*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__scratch_y_end__ = .;
|
||||||
|
} > SCRATCH_Y AT > APP
|
||||||
|
__scratch_y_source__ = LOADADDR(.scratch_y);
|
||||||
|
|
||||||
|
.bss : {
|
||||||
|
. = ALIGN(4);
|
||||||
|
__bss_start__ = .;
|
||||||
|
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
|
||||||
|
*(COMMON)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__bss_end__ = .;
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
.heap (COPY):
|
||||||
|
{
|
||||||
|
__end__ = .;
|
||||||
|
end = __end__;
|
||||||
|
*(.heap*)
|
||||||
|
__HeapLimit = .;
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* .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 (COPY):
|
||||||
|
{
|
||||||
|
*(.stack1*)
|
||||||
|
} > SCRATCH_X
|
||||||
|
.stack_dummy (COPY):
|
||||||
|
{
|
||||||
|
*(.stack*)
|
||||||
|
} > SCRATCH_Y
|
||||||
|
|
||||||
|
.flash_end : {
|
||||||
|
__flash_binary_end = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
/* stack limit is poorly named, but historically is maximum heap ptr */
|
||||||
|
__StackLimit = __bss_end__ + __micropy_c_heap_size__;
|
||||||
|
|
||||||
|
/* Define start and end of GC heap */
|
||||||
|
__GcHeapStart = __StackLimit; /* after the C heap (sbrk limit) */
|
||||||
|
__GcHeapEnd = ORIGIN(RAM) + LENGTH(RAM);
|
||||||
|
|
||||||
|
/* Define memory for the C stack */
|
||||||
|
__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);
|
||||||
|
|
||||||
|
/* Check GC heap is at least 128 KB */
|
||||||
|
/* On a RP2040 using all SRAM this should always be the case. */
|
||||||
|
ASSERT((__GcHeapEnd - __GcHeapStart) > 128*1024, "GcHeap is too small")
|
||||||
|
|
||||||
|
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 */
|
||||||
|
}
|
|
@ -0,0 +1,274 @@
|
||||||
|
/* 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)
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Default RP2 flash size. Assumes no user filesystem. */
|
||||||
|
_flash_start = 0x10000000;
|
||||||
|
_flash_size = 2048k;
|
||||||
|
_flash_app_size = 1200k;
|
||||||
|
_flash_fs_size = _flash_size - _flash_app_size;
|
||||||
|
_flash_fs_start = _flash_start + _flash_app_size;
|
||||||
|
|
||||||
|
MEMORY
|
||||||
|
{
|
||||||
|
FLASH(rx) : ORIGIN = _flash_start, LENGTH = _flash_size
|
||||||
|
APP(rx) : ORIGIN = _flash_start, LENGTH = _flash_app_size
|
||||||
|
FILESYSTEM(r) : ORIGIN = _flash_fs_start, LENGTH = _flash_fs_size
|
||||||
|
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 = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
.boot2 : {
|
||||||
|
__boot2_start__ = .;
|
||||||
|
KEEP (*(.boot2))
|
||||||
|
__boot2_end__ = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
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 (*(.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)
|
||||||
|
/* Change for MicroPython... exclude gc.c, parse.c, vm.c from flash */
|
||||||
|
*(EXCLUDE_FILE(*libgcc.a: *libc.a: *lib_a-mem*.o *libm.a: *gc.c.obj *vm.c.obj *parse.c.obj) .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)
|
||||||
|
|
||||||
|
*(.eh_frame*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
.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);
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
.ARM.extab :
|
||||||
|
{
|
||||||
|
*(.ARM.extab* .gnu.linkonce.armextab.*)
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
__exidx_start = .;
|
||||||
|
.ARM.exidx :
|
||||||
|
{
|
||||||
|
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
|
||||||
|
} > APP
|
||||||
|
__exidx_end = .;
|
||||||
|
|
||||||
|
/* Machine inspectable binary information */
|
||||||
|
. = ALIGN(4);
|
||||||
|
__binary_info_start = .;
|
||||||
|
.binary_info :
|
||||||
|
{
|
||||||
|
KEEP(*(.binary_info.keep.*))
|
||||||
|
*(.binary_info.*)
|
||||||
|
} > APP
|
||||||
|
__binary_info_end = .;
|
||||||
|
. = ALIGN(4);
|
||||||
|
|
||||||
|
/* End of .text-like segments */
|
||||||
|
__etext = .;
|
||||||
|
|
||||||
|
.ram_vector_table (COPY): {
|
||||||
|
*(.ram_vector_table)
|
||||||
|
} > 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);
|
||||||
|
/* 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);
|
||||||
|
/* All data end */
|
||||||
|
__data_end__ = .;
|
||||||
|
} > RAM AT> APP
|
||||||
|
|
||||||
|
.uninitialized_data (COPY): {
|
||||||
|
. = ALIGN(4);
|
||||||
|
*(.uninitialized_data*)
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* bss without zero init on startup */
|
||||||
|
.uninitialized_bss (NOLOAD): {
|
||||||
|
. = ALIGN(4);
|
||||||
|
*(.uninitialized_bss*)
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* Start and end symbols must be word-aligned */
|
||||||
|
.scratch_x : {
|
||||||
|
__scratch_x_start__ = .;
|
||||||
|
*(.scratch_x.*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__scratch_x_end__ = .;
|
||||||
|
} > SCRATCH_X AT > APP
|
||||||
|
__scratch_x_source__ = LOADADDR(.scratch_x);
|
||||||
|
|
||||||
|
.scratch_y : {
|
||||||
|
__scratch_y_start__ = .;
|
||||||
|
*(.scratch_y.*)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__scratch_y_end__ = .;
|
||||||
|
} > SCRATCH_Y AT > APP
|
||||||
|
__scratch_y_source__ = LOADADDR(.scratch_y);
|
||||||
|
|
||||||
|
.bss : {
|
||||||
|
. = ALIGN(4);
|
||||||
|
__bss_start__ = .;
|
||||||
|
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.bss*)))
|
||||||
|
*(COMMON)
|
||||||
|
. = ALIGN(4);
|
||||||
|
__bss_end__ = .;
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
.heap (COPY):
|
||||||
|
{
|
||||||
|
__end__ = .;
|
||||||
|
end = __end__;
|
||||||
|
*(.heap*)
|
||||||
|
__HeapLimit = .;
|
||||||
|
} > RAM
|
||||||
|
|
||||||
|
/* .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 (COPY):
|
||||||
|
{
|
||||||
|
*(.stack1*)
|
||||||
|
} > SCRATCH_X
|
||||||
|
.stack_dummy (COPY):
|
||||||
|
{
|
||||||
|
*(.stack*)
|
||||||
|
} > SCRATCH_Y
|
||||||
|
|
||||||
|
.flash_end : {
|
||||||
|
__flash_binary_end = .;
|
||||||
|
} > APP
|
||||||
|
|
||||||
|
/* stack limit is poorly named, but historically is maximum heap ptr */
|
||||||
|
__StackLimit = __bss_end__ + __micropy_c_heap_size__;
|
||||||
|
|
||||||
|
/* Define start and end of GC heap */
|
||||||
|
__GcHeapStart = __StackLimit; /* after the C heap (sbrk limit) */
|
||||||
|
__GcHeapEnd = ORIGIN(RAM) + LENGTH(RAM);
|
||||||
|
|
||||||
|
/* Define memory for the C stack */
|
||||||
|
__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);
|
||||||
|
|
||||||
|
/* Check GC heap is at least 128 KB */
|
||||||
|
/* On a RP2040 using all SRAM this should always be the case. */
|
||||||
|
ASSERT((__GcHeapEnd - __GcHeapStart) > 128*1024, "GcHeap is too small")
|
||||||
|
|
||||||
|
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 */
|
||||||
|
}
|
|
@ -0,0 +1,17 @@
|
||||||
|
diff --git a/ports/rp2/CMakeLists.txt b/ports/rp2/CMakeLists.txt
|
||||||
|
index 2697efe28..f5d4bc0b2 100644
|
||||||
|
--- a/ports/rp2/CMakeLists.txt
|
||||||
|
+++ b/ports/rp2/CMakeLists.txt
|
||||||
|
@@ -507,7 +507,11 @@ endif()
|
||||||
|
# a linker script modification) until we explicitly add macro calls around the function
|
||||||
|
# defs to move them into RAM.
|
||||||
|
if (PICO_ON_DEVICE AND NOT PICO_NO_FLASH AND NOT PICO_COPY_TO_RAM)
|
||||||
|
- pico_set_linker_script(${MICROPY_TARGET} ${CMAKE_CURRENT_LIST_DIR}/memmap_mp.ld)
|
||||||
|
+ if(EXISTS ${MICROPY_BOARD_DIR}/memmap_mp.ld)
|
||||||
|
+ pico_set_linker_script(${MICROPY_TARGET} ${MICROPY_BOARD_DIR}/memmap_mp.ld)
|
||||||
|
+ else()
|
||||||
|
+ pico_set_linker_script(${MICROPY_TARGET} ${CMAKE_CURRENT_LIST_DIR}/memmap_mp.ld)
|
||||||
|
+ endif()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
pico_add_extra_outputs(${MICROPY_TARGET})
|
|
@ -0,0 +1,12 @@
|
||||||
|
diff --git a/ports/rp2/CMakeLists.txt b/ports/rp2/CMakeLists.txt
|
||||||
|
index 2697efe28..cd35392be 100644
|
||||||
|
--- a/ports/rp2/CMakeLists.txt
|
||||||
|
+++ b/ports/rp2/CMakeLists.txt
|
||||||
|
@@ -451,6 +451,7 @@ target_compile_options(${MICROPY_TARGET} PRIVATE
|
||||||
|
target_link_options(${MICROPY_TARGET} PRIVATE
|
||||||
|
-Wl,--defsym=__micropy_c_heap_size__=${MICROPY_C_HEAP_SIZE}
|
||||||
|
-Wl,--wrap=dcd_event_handler
|
||||||
|
+ -Wl,--print-memory-usage
|
||||||
|
)
|
||||||
|
|
||||||
|
# Do not include stack unwinding & exception handling for C++ user modules
|
|
@ -9,5 +9,9 @@ set(CMAKE_CXX_STANDARD 17)
|
||||||
|
|
||||||
include(micropython-common)
|
include(micropython-common)
|
||||||
|
|
||||||
|
# Tiny 2040 has 8MB flash with 1MB reserved for app,
|
||||||
|
# weighs about 612k without ulab
|
||||||
|
enable_ulab()
|
||||||
|
|
||||||
# C++ Magic Memory
|
# C++ Magic Memory
|
||||||
include(cppmem/micropython)
|
include(cppmem/micropython)
|
||||||
|
|
Ładowanie…
Reference in New Issue