Commit Graph

1626 Commits

Author SHA1 Message Date
John Baldwin
ae3f633bae - Apparently, the Alpha ABI mandates that arguments be passed sign-extended
regardless of if they are signed or unsigned since it is easier to work
  with sign-extended values.  Thus, remove the disabled zapnot to
  zero-extend the sign-extended value we read from *p in atomic_cmpset_32()
  since the cmpval we are comparing against should already be
  sign-extended.
- To ensure that the compiler knows to sign-extend the upper 32 bits of
  cmpval rather than leaving garbage in there, cast the appropriately in
  the constraints section.

Help from:	Richard Henderson <rth@redhat.com>
2002-05-17 05:45:39 +00:00
Tom Rhodes
d394511de3 More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
Andrew Gallatin
16b9af9990 Fixup unaligned bwx instructions (ldwu, stw). This may fix some mysterious
natd sigbus errors being reported on the freebsd-alpha@ mailing list.

Obtained from: NetBSD
2002-05-16 00:03:32 +00:00
Poul-Henning Kamp
6380601f64 Move MI stuff out of MD param.h files.
It can all still be overridden in the MD files should need suddenly arise.
2002-05-14 20:35:29 +00:00
Poul-Henning Kamp
4c51ae2155 Remove the unused definitions of ctod() and dotc(). 2002-05-14 20:01:34 +00:00
Jake Burkholder
26a9c7b7e1 These were repo-copied to dump_machdep.c. 2002-05-13 02:52:35 +00:00
Andrew Gallatin
338a21a47a Restore the ability to take crashdumps on alpha. This was cut and pasted
nearly in its entirety from i386, so it retains the phk/nati copyright.

Savecore likes the results, but I have no way to test it as gdb is
still broken.
2002-05-11 21:53:46 +00:00
John Baldwin
8f0dda1601 Temporarily disable Jeff's fix for atomic_cmpset_32() to zero-extend the
value we load from memory.  gcc3.1 passes in the u_int32_t old value to
compare against as a _sign_-extended 64-bit value for some reason (bug?).
This is a temporary workaround so kernels work again on alpha.
2002-05-11 04:27:39 +00:00
Andrew Gallatin
8bef1df9eb Remove ## concatination in the CFGREAD and CFGWRITE macros, as gcc3 complains
about them & they are not needed.  Same fix as to tsunami_pci.c.
(not surprising, as this code was cut and pasted from there when I wrote it).
2002-05-10 16:56:14 +00:00
David E. O'Brien
4c04f5d447 Opps, remove added bogon. 2002-05-10 02:21:05 +00:00
David E. O'Brien
fc336fdfbb Gcc 3.1 varargs support. 2002-05-10 02:02:54 +00:00
Matt Jacob
cc8371bc71 Only saying you're launching other CPUs if there are more than one to launch. 2002-05-08 23:12:00 +00:00
Jeff Roberson
c4b689f10a zapnot the signed bits in atomic_cmpset_32. Previously this did not work with
negative values because the original value was sign extended but the compared
value was not.
2002-05-08 05:19:56 +00:00
Juli Mallett
ea0b7a7699 Typo fix: detects -> detect.
Reviewed by:	phk
2002-05-03 17:59:25 +00:00
Peter Wemm
33438f3bac Remove two unused headers (<machine/frame.h> and <machine/psl.h>).
psl.h is 100% bogus to be referenced here, especially from alpha MD code.
2002-05-01 06:24:51 +00:00
Poul-Henning Kamp
2266fe776e Don't export timecounter structures under debug. with sysctl, they
contain no truly interesting data anymore.
2002-04-30 19:34:31 +00:00
Peter Wemm
db17c6fc07 Tidy up some loose ends.
i386/ia64/alpha - catch up to sparc64/ppc:
- replace pmap_kernel() with refs to kernel_pmap
- change kernel_pmap pointer to (&kernel_pmap_store)
  (this is a speedup since ld can set these at compile/link time)
all platforms (as suggested by jake):
- gc unused pmap_reference
- gc unused pmap_destroy
- gc unused struct pmap.pm_count
(we never used pm_count - we track address space sharing at the vmspace)
2002-04-29 07:43:16 +00:00
Alan Cox
644d87b30a MFi386 1.222: Remove vm_map_growstack() and acquisition and release of Giant
around vm_fault().
2002-04-27 09:34:15 +00:00
Marcel Moolenaar
d297ad160e Don't use the symbol name to lookup the symbol value when we can use
the symbol index defined by the relocation. The elf_lookup() support
function is to be used by elf_reloc() when symbol lookups need to be
done. The elf_lookup() function operates on the symbol index and
will do a symbol name based lookup when such is required, otherwise
it uses the symbol index directly. This solves the problem seen on
ia64 where the symbol hash table does not contain local symbols and
a symbol name based lookup would fail for those symbols.

Don't pass the symbol name to elf_reloc(), as it isn't used any more.
2002-04-25 01:22:16 +00:00
Robert Watson
91e007dc70 Since WITNESS doesn't just do mutexes, remove "mutex" from the WITNESS
comment in GENERIC config files of appropriate platforms.  For whatever
reason, powerpc didn't use WITNESS in GENERIC.
2002-04-18 03:44:44 +00:00
Bernd Walter
b5b4067771 Fix a compiler warning I missed in the last commit.
Reviewed by:	gallatin
Approved by:	gallatin
2002-04-17 15:32:11 +00:00
Bernd Walter
27c5b6c8f1 Revive dec_axppci_33_intr_route for LCA.
We now get valid interrupt lines for devices on secondary pci busses.

Reviewed by:	gallatin
Approved by:	gallatin
2002-04-17 14:08:22 +00:00
Bernd Walter
dd516e0773 Clear the error flags in the LCA_IOC_STAT0 register after
machine_checks.
This fixes pci config reads for non existing devices on secondary
pci busses.

Thanks to Andrew Gallatin for pointing me to the register

Reviewed by:	gallatin
Approved by:	gallatin
2002-04-17 13:57:50 +00:00
Maxime Henrion
d786139c76 Rework the kernel environment subsystem. We now convert the static
environment needed at boot time to a dynamic subsystem when VM is
up.  The dynamic kernel environment is protected by an sx lock.

This adds some new functions to manipulate the kernel environment :
freeenv(), setenv(), unsetenv() and testenv().  freeenv() has to be
called after every getenv() when you have finished using the string.
testenv() only tests if an environment variable is present, and
doesn't require a freeenv() call. setenv() and unsetenv() are self
explanatory.

The kenv(2) syscall exports these new functionalities to userland,
mainly for kenv(1).

Reviewed by:	peter
2002-04-17 13:06:36 +00:00
David E. O'Brien
200e654a4a I am not sure why ## was used in this macro, as w/o the string concatenation
the tokens are legal ANSI-C.  Maybe to enable 'op' to be a macro itself?
Anyway, with the ## concatenation Gcc 3.1's integrated `cpp' treats "=op("
as a single token vs. the three tokens it is.
2002-04-17 04:31:43 +00:00
Alan Cox
edbecb0cf5 Remove code that updates vm->vm_ssize. This duplicates work already
performed by vm_map_growstack().
2002-04-16 05:56:01 +00:00
David E. O'Brien
3f52464b1c Remove the .stab directives. I do not understand what is different about
Gcc 3.1's 'cpp' vs. 2.95.3's.  Maybe it is due to other code movement and
it just shows up weirdly in handling the .stab's.  Anyway, w/o this change
building a kernel gives:

    alpha/alpha/pal.s:75: relocation truncated to fit: REFLONG .text
    alpha/alpha/prom_disp.s:67: relocation truncated to fit: REFLONG .text
2002-04-15 21:44:19 +00:00
Peter Wemm
c58d96bb2f Fix an "oops!" that turned out to be mostly harmless (but gave a warning).
I did this right on the sparc64.  Store the direct mapped addresses in
the correct variables.

Submitted by:	jake
2002-04-15 16:07:52 +00:00
Peter Wemm
1a87a0da66 Pass vm_page_t instead of physical addresses to pmap_zero_page[_area]()
and pmap_copy_page().  This gets rid of a couple more physical addresses
in upper layers, with the eventual aim of supporting PAE and dealing with
the physical addressing mostly within pmap.  (We will need either 64 bit
physical addresses or page indexes, possibly both depending on the
circumstances.  Leaving this to pmap itself gives more flexibilitly.)

Reviewed by:	jake
Tested on:	i386, ia64 and (I believe) sparc64. (my alpha was hosed)
2002-04-15 16:00:03 +00:00
David E. O'Brien
76dcc6cba9 Modernize SCM ID. 2002-04-14 07:07:09 +00:00
Alan Cox
b7c8cbabf9 Add comment that sigreturn() is MPSAFE. 2002-04-13 23:37:10 +00:00
John Baldwin
094a945562 Rework logic of syscalls that modify process credentials as described in
rev 1.152 of sys/kern/kern_prot.c.
2002-04-13 23:11:23 +00:00
David E. O'Brien
0301e9c83b Turn on TGA support.
Submitted by:	Andrew M. Miklic <AndrwMklc@cs.com>
2002-04-13 22:34:16 +00:00
David E. O'Brien
a68bbb481b Quiet GCC 3.1 warning. 2002-04-13 22:21:28 +00:00
Mike Barcroft
795aff0ed9 Include <sys/cdefs.h> for definition of __BSD_VISIBLE.
Pointy hat to:	mike
2002-04-12 15:56:45 +00:00
Alan Cox
0d36f49e63 Add a comment that osigreturn() is MPSAFE. 2002-04-11 17:13:08 +00:00
Bernd Walter
0dc76ffdd4 LCA based systems can't handle more than 16 devices on pci bus 0.
Reviewed by:	gallatin
Approved by:	gallatin
2002-04-11 13:24:20 +00:00
Mike Barcroft
49285705cc Remove the hack for segsz_t from <sys/types.h>; use the normal
_BSD_FOO_T_ method for defining segsz_t.
2002-04-10 15:58:13 +00:00
Mike Barcroft
7f0f1cfd57 Add manifest constants: _LITTLE_ENDIAN, _BIG_ENDIAN, _PDP_ENDIAN, and
_BYTE_ORDER.  These are far more useful than their non-underscored
equivalents as these can be used in restricted namespace environments.
Mark the non-underscored variants as deprecated.
2002-04-10 14:39:14 +00:00
Poul-Henning Kamp
2ce7d7a033 GC various bits and pieces of USERCONFIG from all over the place. 2002-04-09 11:18:46 +00:00
Poul-Henning Kamp
67ec58a802 GC the "dumplo" variable, which is no longer used.
A lot of sys/*/*/machdep.c seems not to be.
2002-04-07 21:01:37 +00:00
Alan Cox
aa4d062142 o Eliminate the use of grow_stack() and useracc() from sendsig(), osendsig(),
and osf1_sendsig().
 o Eliminate the prototype for the MD grow_stack() now that it has been removed
   from all platforms.
2002-04-05 00:52:15 +00:00
Eric Melville
1bbfb90c3c Spell "privileges" correctly. 2002-04-05 00:08:38 +00:00
John Baldwin
6008862bc2 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
Bruce Evans
79065dba2a Moved signal handling and rescheduling from userret() to ast() so that
they aren't in the usual path of execution for syscalls and traps.
The main complication for this is that we have to set flags to control
ast() everywhere that changes the signal mask.

Avoid locking in userret() in most of the remaining cases.

Submitted by:	luoqi (first part only, long ago, reorganized by me)
Reminded by:	dillon
2002-04-04 17:49:48 +00:00
Ruslan Ermilov
12c79eb288 Dike out a highly insecure UCONSOLE option.
TIOCCONS must be able to VOP_ACCESS() /dev/console to succeed.

Obtained from:	OpenBSD
2002-04-03 10:56:59 +00:00
John Baldwin
c53c013bae - Move the MI mutexes sched_lock and Giant from being declared in the
various machdep.c's to being declared in kern_mutex.c.
- Add a new function mutex_init() used to perform early initialization
  needed for mutexes such as setting up thread0's contested lock list
  and initializing MI mutexes.  Change the various MD startup routines
  to call this function instead of duplicating all the code themselves.

Tested on:	alpha, i386
2002-04-02 22:19:16 +00:00
Matthew Dillon
182da8209d Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter()
and cpu_critical_exit() and moves associated critical prototypes into their
own header file, <arch>/<arch>/critical.h, which is only included by the
three MI source files that need it.

Backout and re-apply improperly comitted syntactical cleanups made to files
that were still under active development.  Backout improperly comitted program
structure changes that moved localized declarations to the top of two
procedures.  Partially re-apply one of the program structure changes to
move 'mask' into an intermediate block rather then in three separate
sub-blocks to make the code more readable.  Re-integrate bug fixes that Jake
made to the sparc64 code.

Note: In general, developers should not gratuitously move declarations out
of sub-blocks.  They are where they are for reasons of structure, grouping,
readability, compiler-localizability, and to avoid developer-introduced bugs
similar to several found in recent years in the VFS and VM code.

Reviewed by:	jake
2002-04-01 23:51:23 +00:00
John Baldwin
44731cab3b Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
Poul-Henning Kamp
8d19a26558 Centralize the "bootdev" and "dumpdev" variables. They are still pretty
bogus all things considered, but at least now they don't camouflage as
being MD variables.
2002-03-31 07:15:28 +00:00