ESP8266 Community Forum

Slaff wrote:I was able to compile qemu but I do not know what to do next to compile and test my custom applications. Can someone give me step by step hints?

This page can give you an idea of what you can do: http://wiki.linux-xtensa.org/index.php/Xtensa_on_QEMU
Just compile and link your firmware with -g and pass the resulting elf file (not bin files!) to QEMU in -kernel parameter.
You'll need a touch of magic to step over the initial user code that maps FLASH into memory space, as this piece of hardware is currently not implemented and the firmware will hang on attempt to access it. Feel free to figure out what's missing and post a fix for it.
The short video of the very basics (building QEMU, connecting to it with gdb) here: http://jcmvbkbc.spb.ru/~dumb/tmp/qemu-s ... sp8266.ogv

Status update for https://github.com/OSLL/qemu-xtensa/tree/xtensa-esp8266 : now it can take FLASH image in -kernel parameter, load data from that FLASH image and map it to physical address space.
It gets stuck somewhere at PLL calibration process. Looks like it's time to implement timers and RTC.

Status update for https://github.com/OSLL/qemu-xtensa/tree/xtensa-esp8266 : PLL calibration response emulated, two more registers mindlessly plugged and now it's possible to boot all the way from reset to user_init.

Hi,

currently trying your Qemu port on Mac OS X 10.10.3.
Any idea about the cause for the following compile error:



Find the complete compiler invocation below.

Thanks!