Commit Graph

14 Commits

Author SHA1 Message Date
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
David E. O'Brien
439a4003ab ASM versions of __FBSDID. 2002-03-23 02:01:27 +00:00
John Baldwin
0bbc882680 Overhaul the per-CPU support a bit:
- The MI portions of struct globaldata have been consolidated into a MI
  struct pcpu.  The MD per-CPU data are specified via a macro defined in
  machine/pcpu.h.  A macro was chosen over a struct mdpcpu so that the
  interface would be cleaner (PCPU_GET(my_md_field) vs.
  PCPU_GET(md.md_my_md_field)).
- All references to globaldata are changed to pcpu instead.  In a UP kernel,
  this data was stored as global variables which is where the original name
  came from.  In an SMP world this data is per-CPU and ideally private to each
  CPU outside of the context of debuggers.  This also included combining
  machine/globaldata.h and machine/globals.h into machine/pcpu.h.
- The pointer to the thread using the FPU on i386 was renamed from
  npxthread to fpcurthread to be identical with other architectures.
- Make the show pcpu ddb command MI with a MD callout to display MD
  fields.
- The globaldata_register() function was renamed to pcpu_init() and now
  init's MI fields of a struct pcpu in addition to registering it with
  the internal array and list.
- A pcpu_destroy() function was added to remove a struct pcpu from the
  internal array and list.

Tested on:	alpha, i386
Reviewed by:	peter, jake
2001-12-11 23:33:44 +00:00
Andrew Gallatin
8c8fdd1fa2 Sync up to v 1.9 of NetBSD's db_trace.c to get access to the
greatly improved traceback code from Ross Harvey.  This code
requires the use of more traceback friendly temporary labels
at kernel entry points, hence the changes to exception.s and
asm.h

Reviewed by: jhb, dfr
Obtained from: NetBSD
MFC after: 1 week
2001-06-08 13:38:02 +00:00
David E. O'Brien
dfbe5c12ae One needs to introduce things with a `.file' directive before trying to
do a .loc on it.  BTW, the .loc needs to be in a .text section.
gas 2.11.0 catches these oversights where previous versions did not.
2001-05-28 09:52:21 +00:00
David E. O'Brien
58c9a20771 Fix SCM ID's and remove tailing blanks. 2001-04-25 20:40:57 +00:00
Andrew Gallatin
1e78526274 Fix problems booting large kernels on alphas. The symptom is that the kernel
loads, prints the copyright, and either hangs or locks solid.  The
PC tends to be in the data segment and the RA is in XentMM

Doug really came up with the fix, I'm just the monkey typing.  Doug says:
	The alpha can only support 64k of globals with $gp pointing at
	base+32k so that the code can use 16bit signed offsets from $gp to
	access it. ....  it is possible to have multiple .got subsections
	and the linker handles this with the relocations for 'ldgp' pseudo
	instructions.  [Without this patch] the code in exception.s has been
	linked  to use a different gp from locore.s (where pal_kgp is set).

Reviewed by: dfr
2000-10-16 20:15:43 +00:00
Jason Evans
0384fff8c5 Major update to the way synchronization is done in the kernel. Highlights
include:

* Mutual exclusion is used instead of spl*().  See mutex(9).  (Note: The
  alpha port is still in transition and currently uses both.)

* Per-CPU idle processes.

* Interrupts are run in their own separate kernel threads and can be
  preempted (i386 only).

Partially contributed by:	BSDi (BSD/OS)
Submissions by (at least):	cp, dfr, dillon, grog, jake, jhb, sheldonh
2000-09-07 01:33:02 +00:00
Peter Wemm
664a31e496 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
1999-12-29 04:46:21 +00:00
Peter Wemm
33f86cee91 Zap some latent problems hidden by differences between KERNEL and _KERNEL.
The KAME code intruduces _KERNEL, which exposes some of them.
1999-11-22 15:14:56 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Hidetoshi Shimokawa
9586f34bf3 * Restore register correctly.
* Add missing bits for profiling.
1999-07-16 06:45:52 +00:00
Doug Rabson
897cd717a5 Add initial support for the FreeBSD/alpha kernel. This is very much a
work in progress and has never booted a real machine.  Initial
development and testing was done using SimOS (see
http://simos.stanford.edu for details).  On the SimOS simulator, this
port successfully reaches single-user mode and has been tested with
loads as high as one copy of /bin/ls :-).

Obtained from: partly from NetBSD/alpha
1998-06-10 10:57:29 +00:00
John Birrell
a3a38f0526 Header files which are linked from /usr/include to /usr/include/machine.
NetBSD's endian.h needs sys/types.h for the typedefs that are used to
get htonl() correct when a long is 64 bits.
1998-01-10 22:09:53 +00:00