Re: 68a1c816868b3e35a1da698af412b29e61b1948a
In general, I like the idea (especially since I've proposed it before. ;-)
However:
+ if (have_guest_base) {
+ flags |= MAP_FIXED;
+ }
I think this is broken. If the user specifies -G n -R m they're hoping
or guessing that the range [n,n+m) is free. What they're not expecting
is for the qemu application or any of the required shared libraries to
get forcibly unmapped.
I think instead you should simply adjust the error reporting after the
mmap attempt without MAP_FIXED.
r~
