Re: [Qemu-devel] [PATCH] osdep: Get environment pointer from global variable

[Peter Maydell]

On 7 December 2013 13:14, Stefan Weil <address@hidden> wrote:
> Linux provides a global variable __environ, so it is not necessary to
> use envp from main and propagate it via qemu_init_auxval.

I don't think this will work, because __environ changes whenever
the environment is modified (eg by setenv() calls). It's only the
initial environment pointer value that can be used to find the
aux vector by scanning upwards, so we need to capture it at the
start of main() anyhow and might as well just use the 3-arg main
form to do so.

thanks
-- PMM