[XenAccess-devel] Configurable offsets

[<hi...@cc...>]

My next message is a patch that allows one to specify memory offsets within
the configuration file.  Previously, those values were hardcoded
within xa_private.h.  Those values now are ints declared as extern
within xa_private.h and are defined (with the default values intact),
within (linux|windows)_memory.c.  The variable names are no longer
capitalized (e.g. XALINUX_TASKS_OFFSET becomes xalinux_tasks_offset).

My new configuration file looks like:

Fedora7 {
     sysmap =3D "/home/hinoue/research/xenaccess/syms/fedora.syms";
     ostype =3D "Linux";
     linux_tasks =3D 268;
     linux_mm    =3D 276;
     linux_pid   =3D 312;
     linux_name  =3D 548;
     linux_pgd   =3D 40;
     linux_addr  =3D 132;
}

I have moved the windows offsets into the config file as well.
Those would be win_tasks, etc.

The config parser required a few changes.  There's now a union of
structs within the config_entry struct which store these values.  =20
Also, the configuration options have been added as keywords within the =20
parser.
DomU names must now begin with a letter.  Previously, they could begin
with a number.  Numbers can be specified in hex or dec.

-Jim