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Commit Graph

8826 Commits

Author SHA1 Message Date
Peter Wemm
eb1443c8dd Create inlines for ltr(sel), lldt(sel), lidt(addr) rather than
functions that have one instruction.
2002-09-22 04:45:21 +00:00
Matthew N. Dodd
e58de9c6bc - Move the init of %gs and pcb_gs before user_ldt_free().
- Always call load_gs()
- Trim comments.

This addresses some of the issues raised by BDE.
2002-09-22 01:32:48 +00:00
Jake Burkholder
abc370fa85 Moved nfs_diskless setup code from autoconf.c to nfsclient/nfs_diskless.c
so that it is MI.  Allow nfs_mountroot to return an error if the nfs_diskless
struct is not valid, rather than panicing later on.  Call nfs_setup_diskless()
from nfs_mountroot if NFS_ROOT is defined, like bootpc_init().  Removed legacy
root mount support for sparc64, and enabled NFS_ROOT by default.
2002-09-22 00:59:02 +00:00
Jake Burkholder
05ba50f522 Use the fields in the sysentvec and in the vm map header in place of the
constants VM_MIN_ADDRESS, VM_MAXUSER_ADDRESS, USRSTACK and PS_STRINGS.
This is mainly so that they can be variable even for the native abi, based
on different machine types.  Get stack protections from the sysentvec too.
This makes it trivial to map the stack non-executable for certain abis, on
machines that support it.
2002-09-21 22:07:17 +00:00
Mark Murray
181cb2165a Use a function instead of a non-portable, GCC-specific asm() entry. 2002-09-21 19:03:42 +00:00
Mark Murray
e40ab3e98e A good dose of style.9. No functional change. 2002-09-21 19:02:17 +00:00
Mark Murray
38a4de7905 Code tidy-up. ISOfy, turn a macro into an inline for lint(1) (perhaps
this needs to go to cpufunc.h?), de-register.
2002-09-21 18:53:58 +00:00
Mark Murray
bebe1b92bd Use a function instead of embedding non-portable asm() constructs
in C code.
2002-09-21 18:51:19 +00:00
Mark Murray
39ae7d0dc4 Sort includes. 2002-09-21 18:30:12 +00:00
Mark Murray
d7ee442578 Provide in inline function for the (GNUC) assembler "hlt" instruction. 2002-09-21 18:26:53 +00:00
Mark Murray
c7c7312f2c Wrap GCC-specific asm() code in #ifdef __GNUC__ 2002-09-21 18:19:51 +00:00
Poul-Henning Kamp
bc8c3c3e37 Fix a 3 year old oversight: Remove the #ifdef/#endif pair now that there
is nothing between them anymore.

Spotted by:	peter.
2002-09-21 07:59:06 +00:00
John Baldwin
fe4663379e Axe unused include. 2002-09-20 19:16:41 +00:00
Poul-Henning Kamp
f00e97684b We need neither <sys/diskslice.h> nor <sys/disklabel.h> here.
Sponsored by:	DARPA & NAI Labs.
2002-09-20 17:59:09 +00:00
Poul-Henning Kamp
6fb3d70418 For reasons now lost in historical fog, the bounds_check_with_label()
function were put in i386/i386/machdep.c from where it has been
cut and pasted to other architectures with only minor corruption.

Disklabel is really a MI format in many ways, at least it certainly
is when you operate on struct disklabel.

Put bounds_check_with_label() back in subr_disklabel.c where it belongs.

Sponsored by:   DARPA & NAI Labs.
2002-09-20 17:51:00 +00:00
John Baldwin
fc028b4e24 fork_trampoline() marks a trap frame.
Submitted by:	bde
2002-09-20 13:58:21 +00:00
John Baldwin
6beff25eed Use proper type for a variable used as a DDB symbol. 2002-09-20 13:56:11 +00:00
John Baldwin
f4684dbc23 Trim includes.
Submitted by:	bde
2002-09-20 13:54:45 +00:00
John Baldwin
9c89a3d5b5 Various style fixes, including moving db_print_backtrace() out of the
middle of the watchpoint code.

Submitted by:	bde
2002-09-20 13:53:33 +00:00
Matthew N. Dodd
12f20b19da This patch enables FreeBSD i686 MTRR support on Intel Pentium
4/XEON processors, which are not currently recognized.

Submitted by:	 Christian Zander <zander@minion.de>
2002-09-19 18:53:49 +00:00
John Baldwin
c79408a059 Implement db_print_backtrace() if DDB is compiled into the kernel. This
MD function is just a wrapper around db_stack_trace_cmd() that prints out
a backtrace of curthread.  Currently, this function is only implemented
on i386 and alpha (and the alpha version isn't quite tested yet, will do
that in a bit).  Other changes:

- For i386, fix a bug in the raw frame address case.  The eip we extract
  from the passed in frame address does not match the frame we received.
  Thus, instead of printing a bogus frame with the wrong eip, go ahead
  and advance frame down to the same frame as the eip we are using.
- For alpha, attempt to add a way of doing a raw trace for alpha.  Instead
  of passing a frame address in 'addr', pass in a pointer to a structure
  containing PC and KSP and use those to start the backtrace.  The alpha
  db_print_backtrace() uses asm to read in the current PC and KSP values
  into such a request.

Tested on:	i386
Requested by:	many
2002-09-19 18:46:29 +00:00
Matthew N. Dodd
37ee08bcab From Christian Zander:
This patch addresses a bug that can cause a GPF in the kernel - if a
process makes use of i386_set_ldt to install a LDT entry, then loads
a corresponding segment descriptor into %gs, forks, and if the child
execs.

In this scenario, setregs executes user_ldt_free and then determines
how to reset the %gs register:

    /* reset %gs as well */
    if (pcb == curpcb)
        load_gs(_udatasel);
    else
        pcb->pcb_gs = _udatasel;

This is insufficient in the fork/exec case, since pcb will be equal
to curpcb when the child execs; load_gs will reset %gs to _udatasel
but it doesn't reset pcb->pcb_gs; upon return from the system call,
cpu_switch_load_gs will thus attempt to restore %gs from pcb->pcb_gs
and trigger a GPF since all LDT entries have already been cleared.

The fix is to always reset pcb->pcb_gs to _udatasel.

Submitted by:	Christian Zander <zander@minion.de>
Reviewed by:	jake
2002-09-19 18:46:25 +00:00
Peter Wemm
ea5d4bd842 Repo copied to <sys/smbus/smb.h> 2002-09-19 04:13:43 +00:00
Peter Wemm
37e255de3f Repo copied to <sys/iicbus/iic.h> 2002-09-19 04:13:29 +00:00
Peter Wemm
db2cfa1f86 move wl (isa wavelan card, not "wi") to i386-only 2002-09-19 03:10:23 +00:00
Peter Wemm
6938800ee2 move "profile 2" to i386 2002-09-19 03:04:07 +00:00
Peter Wemm
b80ad83e76 move ncv, nsp, stg to i386-only section (there is no pc98-specific version) 2002-09-19 03:02:42 +00:00
Peter Wemm
2b412989fe Move dgb to the i386 section 2002-09-19 02:58:41 +00:00
Mitsuru IWASAKI
076ef4620b Restore status register A of RTC at resume time.
This should fix the 'too many RTC interrupts and statclock seems
broken after resume' problem.

MFC after:	1 week
2002-09-18 07:34:04 +00:00
Mike Barcroft
86954511d2 Implement C99's va_copy() macro. 2002-09-18 07:33:16 +00:00
Poul-Henning Kamp
1e77ed827e Add /dev/soekris-errled device to control the Error-LED on Soekris cards/boxes.
# turn LED off
    echo '0' > /dev/soekris-errled

    # turn LED on
    echo '1' > /dev/soekris-errled

    # flash LED (5 hz)
    echo 'f' > /dev/soekris-errled

    # flash LED (4/2 = 2 hz), syntax: "f[1-9]" -> .5 -> 4.5 Hz
    echo 'f4' > /dev/soekris-errled

    # flash digits 1,3 and 7, syntax: "d[1-9]*"
    echo 'd137' > /dev/soekris-errled

Characters not understood are ignored.
2002-09-17 11:47:38 +00:00
Maxim Sobolev
3ac0ac9ea8 Don't reference cpu_fxsr unless CPU_ENABLE_SSE is defined. This fixes kernel
in !CPU_ENABLE_SSE case.
2002-09-17 11:12:10 +00:00
Peter Wemm
66422f5b7a Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha
2002-09-17 01:49:00 +00:00
Jonathan Mini
30abe507c0 Add kernel support needed for the KSE-aware libpthread:
- Maintain fpu state across signals.
	- Save and restore FPU state properly in ucontext_t's.

Reviewed by:	bde, deischen, julian
Approved by:	-arch
2002-09-16 19:25:59 +00:00
Jonathan Mini
9ba1547929 Add kernel support needed for the KSE-aware libpthread:
- Maintain fpu state across signals.
	- Save and restore FPU state properly in ucontext_t's.

Reviewed by:	deischen, julian
Approved by:	-arch
2002-09-16 19:25:41 +00:00
Jonathan Mini
575525a000 Add kernel support needed for the KSE-aware libpthread:
- Maintain fpu state across signals.
	- Use ucontext_t's to store KSE thread state.
	- Synthesize state for the UTS upon each upcall, rather than
	  saving and copying a trapframe.
	- Save and restore FPU state properly in ucontext_t's.

Reviewed by:	deischen, julian
Approved by:	-arch
2002-09-16 19:25:08 +00:00
Julian Elischer
4f0db5e08c Allocate KSEs and KSEGRPs separatly and remove them from the proc structure.
next step is to allow > 1 to be allocated per process. This would give
multi-processor threads. (when the rest of the infrastructure is
in place)

While doing this I noticed libkvm and sys/kern/kern_proc.c:fill_kinfo_proc
are diverging more than they should.. corrective action needed soon.
2002-09-15 23:52:25 +00:00
Mike Barcroft
ec541fb314 makeLINT.sed replaced makeLINT.sh about 4 months ago. 2002-09-15 19:04:23 +00:00
Bruce Evans
e9a6d3b44c Removed unused includes. Sorted includes. This is part of removing
includes of <sys/user.h> for its pollution only.  <sys/user.h> wasn't
even used for its pollution here.
2002-09-15 17:45:10 +00:00
David Malone
93f39ea88a Some BIOSs are using MTRR values that are only documented under NDA
to control the mapping of things like the ACPI and APM into memory.

The problem is that starting X changes these values, so if something
was using the bits of BIOS mapped into memory (say ACPI or APM),
then next time they access this memory the machine would hang.

This patch refuse to change MTRR values it doesn't understand,
unless a new "force" option is given. This means X doesn't change
them by accident but someone can override that if they really want
to.

PR:		28418
Tested by:	Christopher Masto <chris@netmonger.net>,
		David Bushong <david@bushong.net>,
		Santos <casd@myrealbox.com>
MFC after:	1 week
2002-09-15 15:07:55 +00:00
Robert Watson
a9739d989f Whitespace consistency fix from addition of IAHD_REG_PRETTY_PRINT: use
tabs not spaces.
2002-09-11 16:51:48 +00:00
Julian Elischer
71fad9fdee Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
Nate Lawson
8579e9cfbd Fix LINT build on alpha by completing move of cy and apm_saver to
i386/conf/NOTES rather than the global conf/NOTES.

Suggested by: bde
2002-09-11 05:33:15 +00:00
Sam Leffler
f3a7208afa move some printfs under bootverbose
Reviewed by:	phk
2002-09-10 05:06:48 +00:00
John Baldwin
fefe985dc6 Make sure a $PIR table header has a valid length before accepting the table
as valid.

Submitted by:	Michal Mertl <mime@traveller.cz>
2002-09-09 18:24:35 +00:00
Robert Drehmel
4dfbdd7823 - Fix iBCS2 emulation of COFF files that have multiple libraries
in their library (STYP_LIB) section.
 - Attempt to make the code which calculates the next entry and
   string offsets look clearer.

PR:		kern/42580
Tested by:	Olaf Klein <ok@adimus.de> (on 4.7-PRERELEASE)
2002-09-09 15:51:10 +00:00
Poul-Henning Kamp
a0c422db00 #include "opt_bla.h" goes first says Bruce. 2002-09-09 08:44:52 +00:00
Jun Kuriyama
b37a9be231 Use "options " rather than "options<tab>". 2002-09-09 02:40:59 +00:00
Poul-Henning Kamp
9339569236 Fix style(9) bugs.
Brucified by:	bde
2002-09-08 15:16:49 +00:00
Peter Wemm
8c478ca930 Note that 'device gzip' *requires* COMPAT_AOUT. Maybe this "device"
should be renamed to COMPAT_GZIPAOUT or something like that.
2002-09-08 02:33:42 +00:00