time ago, with small tweaks by me. Since the R5k doesn't do VCE, the pmap
still needs to be whacked for R5kSC CPUs to work correctly, but this is a
start.
three new files;
sig_machdep.c (from mips_machdep.c)
copy.S and sigcode.S (from locore.S)
- Nuke the local use of struct sigframe, which is now identical to
struct sigcontext, from sendsig() as the consequence of new signal
trampoline.
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.
- accumulating all emulation code (including floating-point) in one place
- steal MachFPInterrupt() back from SOFTFLOAT for use only with interrupts
and traps from *real* FPUs
- introducing MachEmulateInst() as a common dispatch point for all
emulated instructions
- cleaning up emulation dispatch in trap()
Also, while we're here, implement MIPS2 LL/SC/SYNC emulation for MIPS1.
Tested on r3k with and without SOFTFLOAT enabled.
and support routines for the Broadcom CFE (Common Firmware Environment).
This code is provided by the Broadband Processor Business Unit at
Broadcom Corp with minor updates by me.
Any problems reported by testers have been fixed, and massive
cross-compiling of kernels has shown that any problems that remain
with actually building kernels are not related to this.
not support a value (e.g., it's to be used as "options FOO" instead of
"options FOO=xxx"). options that take a value were converted to
defparam recently.
- minor whitespace & formatting cleanups
the etc Makefile override that by putting USETOOLS into $.MAKEOVERRIDES
This way the default for kernel compiles is still to use the installed
toolchain instead of depending on $TOOLDIR. $TOOLDIR can be used by
simply adding USETOOLS=yes to the command line as usual.
Adjust each ports template to set the default no setting and also pull in
bsd.own.mk if they weren't already to ensure they'll build correctly
with the new toolchain setup.
COP0_SYNC
In R5900 mtc0, tlbr, tlbp, tlbwi, tlbwr must be followed by sync.p.
if defined MIPS3_5900, COP0_SYNC is defined as sync.p. else nothing.
IPL_ICU_MASK
mask interrupt directly ICU instead of SR.IM.
I've added this feature to support software interrupt for R5900.
and this option may be useful for platform which has cascaded ICU.
use command line parameters to ld(1) instead to set the endian format.
Clean up some endian decisions in mips/conf/Makefile.mips.
Wrap some long lines.
(I have a nice 'install' target for cobalts here, but that only works there.
I guess I'll put that into htdocs now that the cobalt port uses Makefile.mips)
as hacked by mycroft.
- Use syscall_intern() to give a process a plain or fancy
syscall based on ktrace flags.
- Avoid copying from the trapframe into a local array as much
as possible.
Yields roughly 5% improvement on a 25MHz R3000 (DECstation 5000/200)
on a simple syscall benchmark.
There's still some work that can be done using __HAVE_MINIMAL_EMUL.
