[profile] Allow interrupts to be excluded from profiling results
Interrupt processing adds noise to profiling results. Allow
interrupts (from within protected mode) to be profiled separately,
with time spent within the interrupt handler being excluded from any
other profiling currently in progress.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Commit 238050d ("[build] Work around bug in gcc >= 4.8") works around
one instance of a bug in recent versions of gcc, in which "ebp" cannot
be specified within an asm clobber list.
Some versions of gcc seem to exhibit the same bug on other points in
the codebase. Fix by changing all instances of "ebp" in a clobber
list to use the push/pop %ebp workaround instead.
Originally-implemented-by: Víctor Román Archidona <contacto@victor-roman.es>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[librm] Use libflat to enable A20 line on each real-to-protected transition
Use the shared code in libflat to perform the A20 transitions
automatically on each transition from real to protected mode. This
allows us to remove all explicit calls to gateA20_set().
The old warnings about avoiding automatically enabling A20 are
essentially redundant; they date back to the time when we would always
start hammering the keyboard controller without first checking to see
if gate A20 was already enabled (which it almost always is).
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Access to the gpxe.org and etherboot.org domains and associated
resources has been revoked by the registrant of the domain. Work
around this problem by renaming project from gPXE to iPXE, and
updating URLs to match.
Also update README, LOG and COPYRIGHTS to remove obsolete information.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[pxe] Separate parent PXE API caller from UNDINET driver
Calling the parent PXE stack (the stack that loaded us, for
undionly.kkpxe) can be useful for more than UNDI calls; for instance,
it lets us get cached DHCP packets to avoid re-DHCP when working with
embedded images.
Signed-off-by: Marty Connor <mdc@etherboot.org>
Michael Brown