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update bootloader.ld rom_boot ram usage info

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wuzhenghui
2022-07-05 14:35:48 +08:00
parent 31183270fb
commit 2ad49a9be5
4 changed files with 129 additions and 39 deletions
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components/bootloader/subproject/main/ld/esp32s3/bootloader.ld
+39
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@@ -233,3 +233,42 @@ SECTIONS
}
}
/**
* Appendix: Memory Usage of ROM bootloader
*
* 0x3fcd7e00 ------------------> _dram0_0_start
* | |
* | |
* | | 1. Large buffers that are only used in certain boot modes, see shared_buffers.h
* | |
* | |
* 0x3fce9710 ------------------> __stack_sentry
* | |
* | | 2. Startup pro cpu stack (freed when IDF app is running)
* | |
* 0x3fceb710 ------------------> __stack (pro cpu)
* | |
* | | Startup app cpu stack
* | |
* 0x3fced710 ------------------> __stack_app (app cpu)
* | |
* | |
* | | 3. Shared memory only used in startup code or nonos/early boot*
* | | (can be freed when IDF runs)
* | |
* | |
* 0x3fceee34 ------------------> _dram0_rtos_reserved_start
* | |
* | |
* | | 4. Shared memory used in startup code and when IDF runs
* | |
* | |
* 0x3fcef770 ------------------> _dram0_rtos_reserved_end
* | |
* 0x3fcef81c ------------------> _data_start_interface
* | |
* | | 5. End of DRAM is the 'interface' data with constant addresses (ECO compatible)
* | |
* 0x3fcf0000 ------------------> _data_end_interface
*/