On 18.02.2011 17:13, Peter Maydell wrote: > > I'm afraid you've just run into the limitations of semihosting > as an API again: it doesn't provide a way for programs to pass Indeed.
> out an exit code, and trying to shoehorn back doors for this > into qemu just results in ugly code in qemu. The qemu > implementation of semihosting should implement the semihosting > API, not semihosting with weird undocumented extras. Well, exit() is documented in the C ISO standard, so using its argument as exit code is doing what the user expects. > If you care about this sort of thing then linux-user mode is > probably a better approach, as that is actually designed for > a unixish program to run as-if-natively. We are using qemu to execute programs compiled in bare machine mode (eg with arm-none-eabi-gcc as opposed to arm-none-linux-gnueabi-gcc), where semihosting is used to communicate with the host environment. And we lack support for exit code. Christophe.
