a9e02c7638
Correctly calculate fault addresses for instructions like:
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ldr rX, [rY, rZ, ror #16 ]
and even:
ldr rX, [rY, rZ, rrx]
Why anyone would want such an instruction is beyond me, but it's nice not to
panic if they do. Also this makes regress/sys/arch/arm/abort-fixup pass.
2006-10-14 20:39:21 +00:00
2121e75b3f
When forking a new LWP, if a new user stack pointer is provided, use it.
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Necessary to make regress/lib/libc/clone pass.
2006-10-14 17:51:37 +00:00
ecd6759513
Expose __PROG26 to assembly language so we can use it to decide whether
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R14 is vulnerable.
2006-10-08 12:22:35 +00:00
c3d7e34641
hardsplx() is declared in <machine/intr.h>, so there's no need to declare it
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here.
2006-10-07 21:12:00 +00:00
0e30542fee
Make setsoftnet() into a macro, which seems to be the usual approach on systems
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with generic soft interrupts.
2006-10-07 20:58:00 +00:00
0ddc4aa582
Make splsched() and splstatclock() into aliases for splhigh(), since
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practically no hardware interrupts can occur above splstatclock().
This also makes splsched() faster, which is good since it's called an awful
lot.
2006-10-07 20:51:47 +00:00
6f89e70357
When we catch a branch through zero, push a stack frame so that it's possible
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to get a stack backtrace through the error.
2006-10-07 13:36:31 +00:00
33c1fd1917
add support for O_DIRECT (I/O directly to application memory,
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bypassing any kernel caching for file data).
2006-10-05 14:48:32 +00:00
1bef3c4ceb
Use top-down VM on acorn26 and increase the maximum data size to take
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advantage of this. I can run GCC on my A540 now.
2006-10-05 00:25:50 +00:00
578a81db96
Timecounter support for acorn26, using IOC timer 0 and a bit of trickery.
2006-10-04 23:40:00 +00:00
14d2868d44
The IOC datasheet makes it clear that the period of an IOC counter is
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(latch + 1) cycles. Take this into account when programming the latches.
2006-10-04 20:29:51 +00:00
742da1ffcd
Add RCSID().
2006-10-04 20:14:44 +00:00
d98bf2904c
Fast write_region_2, which is just the fast read_region_2 with different
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inner loops.
2006-10-03 23:15:18 +00:00
9dc368e353
Clean up read_region_2 code to use fast version under more circumstances, and
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to always use it aligned on a 4-word boundary. The setup code feels like
it could be sleeker, but I can't currently see how.
2006-10-03 22:27:02 +00:00
e8295642bd
remove MALLOC_NOINLINE, it doesn't do anything anymore.
2006-10-02 03:28:29 +00:00
6a2268f94f
Faster bus_space_read_region_2(), using LDM and STM to process 16 bytes at a
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time where possible. This almost doubles the speed of reading through the
sec(4) in my A540.
2006-10-01 22:47:18 +00:00
5375dc7f10
New driver, sec(4), for the Acorn SCSI Expansion Card. Unlike asc(4), this
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driver uses the board's DMA system, uses the machine-independent WD33C93
driver, works on NetBSD/acorn26, and doesn't share a name with six other
machine-dependent SCSI drivers. Not tested on acorn32, but it seems to
work tolerably well on my A540.
2006-10-01 12:39:35 +00:00
e9030bd381
Move over to using the standard ARM bus_space implementation on acorn26.
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This is more flexible than the old acorn26 bus_space, which means that single
read/write operations are slower, but multi and region operations have the
potential to be faster, and particularly insane podules might be supportable.
In theory the acorn32 mainbus and podulebus code ought to be shareable, but
acorn26 needs the extra overhead of saving R14_svc on some operations so
I've made my own version for now. Also the acorn32 bus_spaces are a mess.
2006-09-30 16:30:10 +00:00
213f273e6a
Calls to bus_space_barrier() on acorn26 were very few and using constants that
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were two generations obsolete. Since they do nothing anyway, remove them
rather than trying to update them.
2006-09-30 15:14:21 +00:00
3143e7d6c3
ANSIfy, un-__P, light KNF.
2006-09-28 23:54:14 +00:00
557f409231
No need to do silly asm() dances to get R14_svc saved now -- the compiler
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does it for us everywhere.
2006-09-28 23:25:01 +00:00
8e80f0df78
Don't specify -fomit-frame-pointer -mno-apcs-frame, since that breaks kernel
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page faults.
2006-09-28 23:23:22 +00:00
87e6985bed
Add -mapcs-frame -fno-omit-frame-pointer to acorn26 kernel builds. This
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is necessary to ensure that GCC saves R14_svc on entry to every function,
and thus that page faults within the kernel are safe (since they corrupt
R14_svc). I think this used to be the default, but it's not any more.
2006-09-28 22:10:53 +00:00
826ff5f060
Make db_validate_address() work, even when called from within an interrupt
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handler. This should make debugging prefetch aborts slightly simpler.
2006-09-27 21:21:09 +00:00
5858e7aa70
Arrange that catching an unexpected data abort in the kernel causes a trap
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into DDB where possible, even if it happens in an interrupt handler.
2006-09-24 23:38:59 +00:00
83d7ac871e
Turn address exceptions into SIGSEGV rather than SIGBUS, since they're really
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just attempts to access unmapped (and incidentally unmappable) memory,
rather than anything special.
2006-09-24 21:42:06 +00:00
7841bf68c0
uvm_fault has been sensible about when to return ENOMEM for some time now,
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so it's reasonable for us to kill processes when we get it returned,
rather than sleeping. Do that.
2006-09-24 20:54:14 +00:00
51b05a4131
Use MI inittodr() and friends.
2006-09-03 11:51:29 +00:00
1323fd42da
This file isn't used any more.
2006-08-31 23:16:28 +00:00
44ef93a9be
Be more careful with registers in LDR[T] so that GAS doesn't warn us about
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constructs that aren't allowed in ARMv3.
2006-08-28 15:15:50 +00:00
d5930df82e
unifdef -U __APCS_26__: we've been using APCS-32 for years.
2006-08-28 14:31:18 +00:00
3612709d56
unifdef __APCS26__: we've been using APCS-32 for years.
2006-08-28 14:26:34 +00:00
e0df1e4c51
PR/34283: Gene ENonymous: Add IPFILTER_LOOKUP to the default kernel options
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Also remove CCITT,NS,NIP
2006-08-26 20:26:43 +00:00
6ff205ce76
Remove obsolete #options VERIFIED_EXEC, found by grep(1).
2006-08-26 07:59:21 +00:00
b300b74469
Disable SYSTRACE by default on all kernels (discussed with core)
2006-08-12 15:29:52 +00:00
84f50d1b92
don't install <machine/db_machdep.h>, this is kernel only
2006-07-26 19:54:56 +00:00
cf7ce97e4b
Silly error: xos_cli() should call XOS_CLI, not OS_CLI.
2006-07-20 23:35:20 +00:00
5bdcc8987d
-mshort-load-words has been removed in GCC 4. It was only an optimisation,
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so just stop using it.
2006-07-20 10:53:12 +00:00
2b79369c7e
- Hold a reference to the process credentials in each struct lwp.
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- Update the reference on syscall and user trap if p_cred has changed.
- Collect accounting flags in the LWP, and collate on LWP exit.
2006-07-19 21:11:37 +00:00
aeee5deab9
Add CARP to GENERIC kernel configs. CARP is not enabled by default.
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ok: christos
2006-06-28 15:19:27 +00:00
a3464e1d27
use the "i2cbus" interface attribute rather than putting a string name
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into the i2cbus attach args
2006-06-26 18:21:38 +00:00
a9f4c28a3d
Fix a bunch of cast lvalues.
2006-05-10 06:24:02 +00:00
7a51d4dddc
Add an extra cookie to the ioctl and mmap wsdisplay accessops that points
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to the screen on which they are being called. The driver cannot guess
this by itself but it is needed to implement, at least, the getwschar and
putwschar functions in the correct place. There are no functional changes
yet.
Tested on i386 (vga, vga_raster, machfb, vesafb), macppc and sparc64.
Suggested and reviewed by macallan@.
2006-04-12 19:38:22 +00:00
7d6535cfe2
Since this port has its own db_interface.c, we need to declare ddb_regs
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here as well, after it moved out of db_machdep.h.
2006-04-06 17:29:49 +00:00
2be6494fc9
Use device_cfdata().
2006-03-29 04:16:44 +00:00
dc1372c547
Add stf to all kernel configs which have INET6 and gif, except the INSTALL
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ones and those for specific machines of developers. PR 32304.
OK'ed by rpaulo.
N.B. stf is a cloning device, so it still must be enabled by
"ifconfig stf0 create".
2006-03-28 20:58:39 +00:00
450ce68a74
Transform to new signature for uvm_fault() by dropping the third arg.
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Discussed with drochner.
2006-03-16 15:10:06 +00:00
be8b235384
Clean up fallout proc_is_traced_p() change:
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- proc_is_traced_p() -> trace_is_enabled(), to match trace_enter() and
trace_exit().
- trace_is_enabled() becomes a real function.
- Remove unnecessary include files from various files that used to care
about KTRACE and SYSTRACE, but do no more.
2006-03-07 03:32:04 +00:00
458b3e43f7
Use device_parent().
2006-02-23 05:37:46 +00:00
fbae48b901
Change "inline" back to "__inline" in .h files -- C99 is still too
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new, and some apps compile things in C89 mode. C89 keywords stay.
As per core@.
2006-02-16 20:17:12 +00:00
bjh21