Err: Buffer too small

[philmb3487]

Getting this error when I try to run this project on an elf file for the STM32L412. (128KB Flash elf).

philmb@aliens ~/Downloads/libmicroemu $ ./build/bin/microemu ~/STM32CubeIDE/workspace_1.18.1/elc1/Debug/elc1.elf 
ERROR: Emulator returned error: BufferTooSmall(8195)

[chgroeling]

Hey,

thanks for taking a look at my little project. The problem is, that the emulator needs the exact memory layout of your targeted cpu. Currently this can only be achieved by specifying that via the command line interface. Take a look at the following command line options.

("flash-size", "Override the flash segment size (in bytes).",
    cxxopts::value<uint32_t>())
("flash-vaddr", "Override the flash segment virtual address.",
    cxxopts::value<uint32_t>())
("ram1-size", "Override the RAM1 segment size (in bytes).",
    cxxopts::value<uint32_t>())
("ram1-vaddr", "Override the RAM1 segment virtual address.",
    cxxopts::value<uint32_t>())
("ram2-size", "Override the RAM2 segment size (in bytes).",
    cxxopts::value<uint32_t>())
("ram2-vaddr", "Override the RAM2 segment virtual address.",
    cxxopts::value<uint32_t>());

But honestly, even if that works you will most likely fail if you plan to completly emulaate the STM32L412. The current implementation works only for basic things (e.g. Output of printf on the console). I assume you need a lot more than that. But feel free to take a look, your feedback is well appreciated.

Libmicroemu will get updates in the next months. But my current focus is on my project decoder-forge, which I need to autogenerate the libmicroemu instruction decoder.

BR,

Christian Gröling