Commit Graph

199 Commits

Author SHA1 Message Date
simokawa
eb07797588 Allow to specify a character special device as a core file.
This enable us to use /dev/fwmem* as a core file.
e.g.
	ps -M /dev/fwmem0.0 -N kernel.debug
	dmesg -M /dev/fwmem0.0 -N kernel.debug
	gdb -k -c /dev/fwmem0.0 kernel.debug
You need to set target EUI64 in hw.firewire.fwmem.eui64_hi/lo before
opening the device. On the target arch, (PCI) bus address must be
equivalent to physical address.
(We cannot use this for sparc64 because of IOMMU.)

No objection in: -audit
2003-10-29 14:02:16 +00:00
bde
8dcb924fbb Fixed some style bugs in the removal of __P(()). Blind removal of
spaces before __P(()) outdented continuation lines to column 0.
2003-10-13 04:44:55 +00:00
tjr
afe7565c55 Document KERN_PROC_PROC, update KERN_PROC_ALL description. 2003-09-27 08:22:23 +00:00
tjr
4d68b1381f Use the 3-component version of the KERN_PROC_PROC sysctl. 2003-09-27 08:14:37 +00:00
obrien
bf7b07bcb2 style.Makefile(5) 2003-08-18 15:25:39 +00:00
gordon
4b82045616 Stage 3 of dynamic root support. Make all the libraries needed to run
binaries in /bin and /sbin installed in /lib. Only the versioned files
reside in /lib, the .so symlink continues to live /usr/lib so the
toolchain doesn't need to be modified.
2003-08-17 08:28:46 +00:00
phk
e687e7417b Remove unnecssary <vm/swap_pager.h> includes.
These were probably not cleaned up back in whatever murky past these
files were split into separate files.
2003-07-31 21:44:31 +00:00
phk
04eddcd0a5 Remove various unused variables, prototypes and local variables. 2003-07-31 21:42:12 +00:00
phk
9b6918a0aa Disable and lobotomize the kvm image reading swapinfo code, the kernel
layout is about to change.

The sysctl based method still returns correct information.
2003-07-31 21:38:32 +00:00
phk
54e57086f7 Retire the SWIF_DUMP_TREE code, this is in the way for a rework of
the swap_pager layout.
2003-07-31 21:30:28 +00:00
phk
72bfda7067 Unifdef -UDEBUG_SWAPINFO The kernel data structures are about to change. 2003-07-31 20:53:04 +00:00
davidxu
a578249556 P_THREADED was renamed to P_SA, follow up. 2003-06-15 03:42:04 +00:00
marcel
2c3af6b0c7 Revamp of the syscall path, exception and context handling. The
prime objectives are:
o  Implement a syscall path based on the epc inststruction (see
   sys/ia64/ia64/syscall.s).
o  Revisit the places were we need to save and restore registers
   and define those contexts in terms of the register sets (see
   sys/ia64/include/_regset.h).

Secundairy objectives:
o  Remove the requirement to use contigmalloc for kernel stacks.
o  Better handling of the high FP registers for SMP systems.
o  Switch to the new cpu_switch() and cpu_throw() semantics.
o  Add a good unwinder to reconstruct contexts for the rare
   cases we need to (see sys/contrib/ia64/libuwx)

Many files are affected by this change. Functionally it boils
down to:
o  The EPC syscall doesn't preserve registers it does not need
   to preserve and places the arguments differently on the stack.
   This affects libc and truss.
o  The address of the kernel page directory (kptdir) had to
   be unstaticized for use by the nested TLB fault handler.
   The name has been changed to ia64_kptdir to avoid conflicts.
   The renaming affects libkvm.
o  The trapframe only contains the special registers and the
   scratch registers. For syscalls using the EPC syscall path
   no scratch registers are saved. This affects all places where
   the trapframe is accessed. Most notably the unaligned access
   handler, the signal delivery code and the debugger.
o  Context switching only partly saves the special registers
   and the preserved registers. This affects cpu_switch() and
   triggered the move to the new semantics, which additionally
   affects cpu_throw().
o  The high FP registers are either in the PCB or on some
   CPU. context switching for them is done lazily. This affects
   trap().
o  The mcontext has room for all registers, but not all of them
   have to be defined in all cases. This mostly affects signal
   delivery code now. The *context syscalls are as of yet still
   unimplemented.

Many details went into the removal of the requirement to use
contigmalloc for kernel stacks. The details are mostly CPU
specific and limited to exception_save() and exception_restore().
The few places where we create, destroy or switch stacks were
mostly simplified by not having to construct physical addresses
and additionally saving the virtual addresses for later use.

Besides more efficient context saving and restoring, which of
course yields a noticable speedup, this also fixes the dreaded
SMP bootup problem as a side-effect. The details of which are
still not fully understood.

This change includes all the necessary backward compatibility
code to have it handle older userland binaries that use the
break instruction for syscalls. Support for break-based syscalls
has been pessimized in favor of a clean implementation. Due to
the overall better performance of the kernel, this will still
be notived as an improvement if it's noticed at all.

Approved by: re@ (jhb)
2003-05-16 21:26:42 +00:00
jhb
34a499dfe9 s/procsig/sigacts/ to catch up to procsig and sigacts changes in the kernel.
Approved by:	re (scottl)
2003-05-14 15:01:20 +00:00
peter
d2df940046 Bandaid for world. jhb gets the pointy hat here and he needs to look at
this.

Approved by:   re (scottl)
2003-05-14 07:28:43 +00:00
peter
182ddb4289 AMD64 support; repocopied from i386 2003-04-30 21:05:33 +00:00
trhodes
79837f89e7 Add sys/user.h to the list of includes. Without it you lack a definition of
'struct kinfo_proc' for calls to kvm_getargv() and kvm_getenvv().

PR:	51322
2003-04-26 15:00:57 +00:00
julian
753cf80295 Catch up with the kernel. Move the current cpu indicator to the thread. 2003-04-10 17:41:40 +00:00
jeff
edf5e63de2 - Spell SIGSETOR correctly. 2003-04-01 04:49:12 +00:00
jeff
7257186867 - Catch up with kernel signal changes. 2003-03-31 22:57:55 +00:00
charnier
301b26fa3d The .Fn function
The .Fa argument
2003-03-24 15:58:53 +00:00
jhb
29bb765f98 Catch up to p_tracep -> p_tracevp rename to unbreak world.
Pointy hat to:	jhb
2003-03-13 21:40:54 +00:00
julian
0d22df7a73 Change the process flags P_KSES to be P_THREADED.
This is just a cosmetic change but I've been meaning to do it for about a year.
2003-02-27 02:05:19 +00:00
dillon
18c03f094d Remove all use of the LOG2() macro/inline, undoing some non-optimal cruft
that crept in recently.  GCC will optimize the divides and multiplies for us.

Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
MFC after:	1 day
2003-01-11 01:09:51 +00:00
phk
6b10165f1b Make struct swblock kernel only, to make vm/swap_pager.h userland includable.
Move struct swdevt from sys/conf.h to the more appropriate vm/swap_pager.h.
Adjust #include use in libkvm and pstat(8) to match.
2003-01-03 16:23:12 +00:00
jake
3581f2e766 Teach libkvm to deal with direct mapped addresses. 2002-12-27 01:45:05 +00:00
ru
bbb36710e2 mdoc(7) police: Deal with self-xrefs. 2002-12-24 13:41:48 +00:00
ru
35dfeeace5 Consistently mark std(in|out|err) with .Dv, because that's how they
are marked up in stdio(3), and because they are defined expressions
of type "FILE *".

Approved by:	re
2002-12-04 18:57:46 +00:00
marcel
0563db1dca Implement working on ELF corefiles. Use kvm_read() when reading
memory while mapping a virtual address to a physical address.
This allows us to work with virtual addresses for page tables,
provided it doesn't cause infinite recursion. Currently all
page tables are direct mapped.
2002-10-21 04:21:12 +00:00
tmm
e4c9640af5 Adapt to handle the new sparc64 core dump format correctly.
Reviewed by:	jake
2002-10-20 17:06:50 +00:00
jhb
b2fafb3737 Catch up to SMTX -> SLOCK changes. 2002-10-02 20:33:52 +00:00
jmallett
65bb170db1 Ressurect libkvm use of the bitmasked signal list in the kernel, now that
reliable signal queues are gone.
2002-10-01 17:17:32 +00:00
jmallett
3dac036815 Fix typo, should zero the kinfo_proc's siglist, not the real one's - the real
one doesn't have one.

Submitted by:	jake, scottl
Big pointed hat that lands one in the badcommitters box to:	jmallett
2002-10-01 00:28:14 +00:00
jmallett
9692c1cb99 The list of queued signals is not, can not, and will not be exported to the
userland.  If someone wants to implement a backup p_siglist in the kernel
for compatability and to export one could.  For now, just tell KVM to hand
an empty signal set off to the userland.
2002-09-30 21:40:33 +00:00
bde
378aa4c356 Fixed messes involving $FreeBSD$ starting with one left in the copyright
after adding __FBSDID().

Garbage-collected kvm_readswap().  This was once used by kvm_uread(), but
kvm_uread() now just reads /proc/<pid>/mem and procfs hopefully handles
swapped out pages.
2002-09-16 08:22:57 +00:00
julian
b32c592b15 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
nectar
e0a6134ca8 In kvm_openfiles/kvm_open, mark the file descriptors as close-on-exec.
Applications can not do this themselves, as the descriptors are hidden
behind the opaque `kvm_t' type.
2002-09-11 16:41:39 +00:00
julian
c69b2fd9b6 Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
peter
c36bb537a2 Hopefully unbreak world. ke_slptime is gone. It should really have been
looking at p_ksegrp.kg_slptime anyway.
2002-08-30 02:18:38 +00:00
alfred
3e1f49aecc Allow one to grab the definition of struct ucred by defining _WANT_UCRED
instead of forcing _KERNEL.

Move the include of sys/_label.h in ucred.h under the
_KERNEL || _WANT_UCRED case.
2002-08-28 20:39:48 +00:00
kris
7c3a0284bf &x is not a format string 2002-08-24 07:15:55 +00:00
mike
5d0fbddc4d o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
alfred
f48beb61ce Hide 'struct ucred' behind '#ifdef _KERNEL', this should stop userland
from attempting to use it for good.  There is a catch, kvm_proc.c needs
to '#define _KERNEL' to get at the ucred.

Requested by: rwatson
2002-08-16 07:01:43 +00:00
jake
66238fd082 Auto size available kernel virtual address space based on phsyical memory
size.  This avoids blowing out kva in kmeminit() on large memory machines
(4 gigs or more).

Reviewed by:	tmm
2002-08-10 22:14:16 +00:00
julian
6c4da45217 Don't even read in the thread if it is a zombie process. 2002-06-30 20:13:53 +00:00
julian
f3b48ca33d grow a brain and do this right. 2002-06-30 17:06:46 +00:00
julian
7fb6531557 Don't follow non existant thread pointers (e.g. for zombies) 2002-06-30 08:11:30 +00:00
julian
eb010f76be Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)

Reviewed by:	Almost everyone who counts
	(at various times, peter, jhb, matt, alfred, mini, bernd,
	and a cast of thousands)

	NOTE: this is still Beta code, and contains lots of debugging stuff.
	expect slight instability in signals..
2002-06-29 17:26:22 +00:00
alfred
c3f67aab4e Assume __STDC__, remove non-__STDC__ code.
Submitted by: keramida
2002-05-28 17:03:12 +00:00
jake
e6b0394427 Catch up to tte.h changes. 2002-05-21 02:22:49 +00:00