Commit Graph

271 Commits

Author SHA1 Message Date
Jordan K. Hubbard
8d5a4c1f9e Use -Z instead of -z to build kernels. This is consistent with NetBSD's
usage of the -[Zz] flags (we're now in sync).  Part of the ld update
changes.
1994-02-13 20:37:32 +00:00
Nate Williams
f657493cee Added -static declartion to genassym compile so a kernel doesn't require
working shlibs.
1994-01-27 21:10:14 +00:00
David Greenman
7f8cb36869 "New" VM system from John Dyson & myself. For a run-down of the
major changes, see the log of any effected file in the sys/vm
directory (swap_pager.c for instance).
1994-01-14 16:25:31 +00:00
Garrett Wollman
aaf08d94ca Make everything compile with -Wtraditional. Make it easier to distribute
a binary link-kit.  Make all non-optional options (pagers, procfs) standard,
and update LINT to reflect new symtab requirements.

NB: -Wtraditional will henceforth be forgotten.  This editing pass was
primarily intended to detect any constructions where the old code might
have been relying on traditional C semantics or syntax.  These were all
fixed, and the result of fixing some of them means that -Wall is now a
realistic possibility within a few weeks.
1993-12-19 00:55:01 +00:00
David Greenman
6d01f02e51 1) Added proc file system from Paul Kranenburg with changes from
John Dyson to make it reliably work under FreeBSD.
2) Added and enabled PROCFS in the GENERICxx and LINT kernels.
3) New execve() from me. Still work to be done here, but this version
	works well and is needed before other changes can be made. For
	a description of the design behind this, see freebsd-arch or
	ask me.
4) Rewrote stack fault code; made user stack VM grow as needed rather
	than all up front; improves performance a little and reduces
	process memory requirements.
5) Incorporated fix from Gene Stark to fault/wire a user page table
	page to fix a problem in copyout. This is a temporary fix and
	is not appropriate for pageable page tables. For a description
	of the problem, see Gene's post to the freebsd-hackers mailing
	list.
6) Tighten up vm_page struct to reduce memory requirements for it. ifdef
	pager page lock code as it's not being used currently.
7) Introduced new element to vmspace struct - vm_minsaddr; initial
	(minimum) stack address. Compliment to vm_maxsaddr.
8) Added a panic if the allocation for process u-pages fails.
9) Improve performance and accuracy of kernel profiling by putting in
	a little inline assembly instead of spl().
10) Made serial console with sio driver work. Still has problems with
	serial input, but is almost useable.
11) Added -Bstatic to SYSTEM_LD in Makefile.i386 so that kernels will
	build properly with the new ld.
1993-12-12 12:22:57 +00:00
Garrett Wollman
381fe1aaf4 Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and
add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
Paul Richards
cf0f1d209c Changed -Z back to -z.
In line with all other ld's -z is now the "standard" ZMAGIC format.
1993-11-16 00:45:04 +00:00
Paul Richards
f4165dc353 Changed -z to -Z so we create old-style ZMAGIC kernels. 1993-11-15 21:06:08 +00:00
David Greenman
0967373e1c First steps in rewriting locore.s, and making info useful
when the machine panics.

i386/i386/locore.s:
1) got rid of most .set directives that were being used like
	#define's, and replaced them with appropriate #define's in
	the appropriate header files (accessed via genassym).
2) added comments to header inclusions and global definitions,
	and global variables
3) replaced some hardcoded constants with cpp defines (such as
	PDESIZE and others)
4) aligned all comments to the same column to make them easier to
	read
5) moved macro definitions for ENTRY, ALIGN, NOP, etc. to
	/sys/i386/include/asmacros.h
6) added #ifdef BDE_DEBUGGER around all of Bruce's debugger code
7) added new global '_KERNend' to store last location+1 of kernel
8) cleaned up zeroing of bss so that only bss is zeroed
9) fix zeroing of page tables so that it really does zero them all
	- not just if they follow the bss.
10) rewrote page table initialization code so that 1) works correctly
	and 2) write protects the kernel text by default
11) properly initialize the kernel page directory, upages, p0stack PT,
	and page tables. The previous scheme was more than a bit
	screwy.
12) change allocation of virtual area of IO hole so that it is
	fixed at KERNBASE + 0xa0000. The previous scheme put it
	right after the kernel page tables and then later expected
	it to be at KERNBASE +0xa0000
13) change multiple bogus settings of user read/write of various
	areas of kernel VM - including the IO hole; we should never
	be accessing the IO hole in user mode through the kernel
	page tables
14) split kernel support routines such as bcopy, bzero, copyin,
	copyout, etc. into a seperate file 'support.s'
15) split swtch and related routines into a seperate 'swtch.s'
16) split routines related to traps, syscalls, and interrupts
	into a seperate file 'exception.s'
17) remove some unused global variables from locore that got
	inserted by Garrett when he pulled them out of some .h
	files.

i386/isa/icu.s:
1) clean up global variable declarations
2) move in declaration of astpending and netisr

i386/i386/pmap.c:
1) fix calculation of virtual_avail. It previously was calculated
	to be right in the middle of the kernel page tables - not
	a good place to start allocating kernel VM.
2) properly allocate kernel page dir/tables etc out of kernel map
	- previously only took out 2 pages.

i386/i386/machdep.c:
1) modify boot() to print a warning that the system will reboot in
	PANIC_REBOOT_WAIT_TIME amount of seconds, and let the user
	abort with a key on the console. The machine will wait for
	ever if a key is typed before the reboot. The default is
	15 seconds, but can be set to 0 to mean don't wait at all,
	-1 to mean wait forever, or any positive value to wait for
	that many seconds.
2) print "Rebooting..." just before doing it.

kern/subr_prf.c:
1) remove PANICWAIT as it is deprecated by the change to machdep.c

i386/i386/trap.c:
1) add table of trap type strings and use it to print a real trap/
	panic message rather than just a number. Lot's of work to
	be done here, but this is the first step. Symbolic traceback
	is in the TODO.

i386/i386/Makefile.i386:
1) add support in to build support.s, exception.s and swtch.s

...and various changes to various header files to make all of the
	above happen.
1993-11-13 02:25:21 +00:00
Garrett Wollman
024253188b Try to be a little smarter about touching the date on assym.s, so that
if something changes which doesn't affect it, locore doesn't have to get
rebuilt.  This is at the cost of a genassym and a cmp in every compile,
until someone can figure out how to make `make' smarter itself.
1993-11-07 16:46:33 +00:00
Garrett Wollman
70176e63d6 Added CWARNFLAGS and COPTFLAGS defines to Makefile so that we can easily
test various warning and optimization compiler flags without modifying the
Makefile. (From my patch set.)
1993-11-07 04:41:11 +00:00
Nate Williams
85c856e747 Removed un-necessary dependencies for assym.s 1993-10-23 08:28:17 +00:00
Nate Williams
b0da334790 Reverted back to older version of ./genassym, instead of ./genassym.o
since make depend wasn't picking up any new dependencies.  However, due
to a bug in the old code, the original dependencies weren't being used, so
this version is better than the original and the lastest version.
(And is more readable as well)
1993-10-23 06:46:24 +00:00
Rodney W. Grimes
9a91485c70 Remove machdep.c from files.i386 and put machdep.o in the SYSTEM_OBJS
line of Makefile.i386.  Fixes the extra rule that gmake complains about
for machdep.o.  This fix is from Joans 0lsson.

Rework the depends and rules for assym.s and genassym so that we now use
the .depend rule for genassym.o such that if you change any header files
that are included by genassym.c the right things happen.  This is probably
what has caused more bad kernel builds than any other thing in the
Makefile.i386!
1993-10-14 17:09:55 +00:00
Rodney W. Grimes
f87a326945 >From NetBSD
Change the cpu "i386" line to 2 lines:
cpu "I386_CPU"
cpu "I486_CPU"
This is so we can do real CPU classification of code.

Fix missing depend for assym.s which does depend on genassym.c
1993-10-08 16:52:45 +00:00
Rodney W. Grimes
dd06619c32 From ljo:
machdep.o is a defined to be a target in 2 places.  This was caused by
the addition of the LOAD_ADDRESS stuff.  Removed the extranious target
of machdep.o.
1993-10-06 20:49:17 +00:00
Rodney W. Grimes
2d717e4a25 This Makefile is for FreeBSD, not 4.3 BSD-Reno. Moved $Id$.
Added STRIP=, DBSYM=, and LOAD_ADDRESS?=
Now use LOAD_ADDRESS for linking kernel and for dbsym, added strip -x to
cut kernel size.

Added machde.o: dependency, this will be needed in the future, and for
now it does not hurt anyone.

Cleaned out conf.o: dependency, mkdep does the right things.  Same for
param.c:

This is really a Merge in of NetBSD's Makefile.i386, here is the relevant
rlog info:
----------------------------
revision 1.27
date: 1993/08/27 23:58:20;  author: brezak;  state: Exp;  lines: +2 -2
Need LOAD_ADDRESS for depend pass.
----------------------------
revision 1.25
date: 1993/07/19 16:52:16;  author: mycroft;  state: Exp;  lines: +3 -3
Add ${DEBUG} to CFLAGS and -f to dbsym.
----------------------------
revision 1.22
date: 1993/07/18 10:08:22;  author: mycroft;  state: Exp;  lines: +5 -6
Change to work with new config stuff for specifying load address.
----------------------------
revision 1.20
date: 1993/07/18 09:47:40;  author: mycroft;  state: Exp;  lines: +6 -5
Use new -T option to dbsym.
----------------------------
revision 1.17
date: 1993/07/11 08:42:22;  author: cgd;  state: Exp;  lines: +2 -2
don't ignore errors from dbsym...  it might say that, e.g. there's
not enough symbol space!
----------------------------
revision 1.14
date: 1993/06/06 23:29:03;  author: cgd;  state: Exp;  lines: +2 -2
make conf.o actually depend on conf.c...
----------------------------
revision 1.8
date: 1993/04/29 03:27:39;  author: cgd;  state: Exp;  lines: +5 -10
use ed instead of ex.  the script to use is identical, and we might
want to switch back to using ex when our ex supports -.
----------------------------
revision 1.5
date: 1993/03/24 18:48:57;  author: cgd;  state: Exp;  lines: +1 -1
now use absolute path for dbsym
----------------------------
1993-09-26 19:44:33 +00:00
Rodney W. Grimes
a62a649d23 Added Id: string 1993-08-21 23:47:20 +00:00
Rodney W. Grimes
a08d4ed348 Finish removal of reminents of as.c Adaptec scsi driver. 1993-08-09 19:02:21 +00:00
Nate Williams
4ff3cd9d3d Fix the problem where newvers gets called every time make is run on
the kernel.
1993-08-04 23:51:59 +00:00
Rodney W. Grimes
5b81b6b301 Initial import, 0.1 + pk 0.2.4-B1 1993-06-12 14:58:17 +00:00