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- /*
- * Copyright (c) 2021-2023 HPMicro
- * SPDX-License-Identifier: BSD-3-Clause
- */
- define memory with size = 4G;
- /* Regions */
- define region ILM = [from 0x00000000 size 256k]; /* ILM */
- define region DLM = [from 0x00080000 size 256k]; /* DLM */
- define region AXI_SRAM = [from 0x01080000 size 512k]; /* AXI SRAM0 */
- define region NONCACHEABLE_RAM = [from 0x01100000 size 256k]; /* AXI SRAM1 */
- define region SHARE_RAM = [from 0x0117C000 size 16k];
- define region AHB_SRAM = [from 0xF0300000 size 32k];
- define region APB_SRAM = [from 0xF40F0000 size 8k];
- assert (__STACKSIZE__ + __HEAPSIZE__) <= 256k with error "stack and heap total size larger than 256k";
- /* Blocks */
- define block vectors { section .isr_vector, section .vector_table };
- define block ctors { section .ctors, section .ctors.*, block with alphabetical order { init_array } };
- define block dtors { section .dtors, section .dtors.*, block with reverse alphabetical order { fini_array } };
- define block eh_frame { section .eh_frame, section .eh_frame.* };
- define block tbss { section .tbss, section .tbss.* };
- define block tdata { section .tdata, section .tdata.* };
- define block tls { block tbss, block tdata };
- define block tdata_load { copy of block tdata };
- define block cherryusb_usbh_class_info { section .usbh_class_info };
- define block framebuffer { section .framebuffer };
- define block heap with size = __HEAPSIZE__, alignment = 8, /* fill =0x00, */ readwrite access { };
- define block stack with size = __STACKSIZE__, alignment = 8, /* fill =0xCD, */ readwrite access { };
- /* Symbols */
- define exported symbol __noncacheable_start__ = start of region NONCACHEABLE_RAM;
- define exported symbol __noncacheable_end__ = end of region NONCACHEABLE_RAM + 1;
- define exported symbol __share_mem_start__ = start of region SHARE_RAM;
- define exported symbol __share_mem_end__ = end of region SHARE_RAM + 1;
- define exported symbol _stack = end of block stack + 1;
- define exported symbol _stack_safe = end of block stack + 1;
- define exported symbol __usbh_class_info_start__ = start of block cherryusb_usbh_class_info;
- define exported symbol __usbh_class_info_end__ = end of block cherryusb_usbh_class_info + 1;
- /* Initialization */
- do not initialize { section .noncacheable };
- do not initialize { section .non_init, section .non_init.*, section .*.non_init, section .*.non_init.* };
- do not initialize { section .no_init, section .no_init.*, section .*.no_init, section .*.no_init.* }; // Legacy sections, kept for backwards compatibility
- do not initialize { section .noinit, section .noinit.*, section .*.noinit, section .*.noinit.* }; // Legacy sections, used by some SDKs/HALs
- do not initialize { section .backup_sram};
- initialize by copy with packing=auto { section .noncacheable.init };
- initialize by copy with packing=none { section .data, section .data.*, section .*.data, section .*.data.* }; // Static data sections
- initialize by copy with packing=auto { section .sdata, section .sdata.* };
- initialize by copy with packing=auto { section .fast, section .fast.*, section .*.fast, section .*.fast.* }; // "RAM Code" sections
- initialize by symbol __SEGGER_init_heap { block heap }; // Init the heap if there is one
- initialize by symbol __SEGGER_init_ctors { block ctors }; // Call constructors for global objects which need to be constructed before reaching main (if any). Make sure this is done after setting up heap.
- /* Placement */
- place at start of ILM { symbol _start };
- place in ILM { block vectors }; // Vector table section
- place in ILM { section .fast, section .fast.* }; // "ramfunc" section
- place in ILM with minimum size order {
- block tdata_load, // Thread-local-storage load image
- block ctors, // Constructors block
- block dtors, // Destructors block
- block eh_frame, // Exception frames placed directly into flash overriding default placement (sections writable)
- readonly, // Catch-all for readonly data (e.g. .rodata, .srodata)
- readexec // Catch-all for (readonly) executable code (e.g. .text)
- };
- //
- // The GNU compiler creates these exception-related sections as writeable.
- // Override the section header flag and make them readonly so they can be
- // placed into flash.
- //
- define access readonly { section .gcc_except_table, section .gcc_except_table.* };
- define access readonly { section .eh_frame, section .eh_frame.* };
- define access readonly { section .sdata.DW.* };
- place in AXI_SRAM { block cherryusb_usbh_class_info };
- place in AXI_SRAM { block framebuffer };
- place in AXI_SRAM {
- block tls, // Thread-local-storage block
- readwrite, // Catch-all for initialized/uninitialized data sections (e.g. .data, .noinit)
- zeroinit // Catch-all for zero-initialized data sections (e.g. .bss)
- };
- place in NONCACHEABLE_RAM { section .noncacheable, section .noncacheable.init, section .noncacheable.bss }; // Noncacheable
- place in SHARE_RAM { section .sh_mem}; // Share memory
- place in AHB_SRAM { section .ahb_sram}; // AHB SRAM memory
- place in APB_SRAM { section .backup_sram}; // Backup SRAM memory
- place in DLM { section .fast_ram}; // Fast access memory
- place in DLM { block heap }; // Heap reserved block
- place at end of DLM { block stack }; // Stack reserved block
- /* Keep */
- keep { section .usbh_class_info};
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