Bill Paul [Thu, 10 Apr 1997 14:12:51 +0000 (14:12 +0000)]
Add a sanity test to ypproc_xfr_2_svc(): check that the map and domain
in the transfer request actually exist. Technically ypxfr can do this too,
but why waste the cycles getting ypxfr off the ground for a transfer we
already know is going to fail.
Also apply stricter access control rules; ypproc_xfr_2_svc() is in a
different class than the normal map access procedures procedures.
Bruce Evans [Thu, 10 Apr 1997 13:54:19 +0000 (13:54 +0000)]
Deprecated <sys/dir.h> some more - changed the comment saying that
<dirent.h> should be used instead to a warning. If this causes too
many warnings in ports then it should be changed back after checking
some ports for related configuration errors.
Moved the definition of DIRSIZ() from <sys/dir.h> to <sys/dirent.h>
so that it can be used in the kernel without including <sys/dir.h>.
Renamed it in some cases to avoid new namespace pollution.
Bruce Evans [Thu, 10 Apr 1997 13:17:09 +0000 (13:17 +0000)]
Use smalllblktosize() instead of multiplying small block numbers
by fs->fs_bsize. The macro is usually faster and makes it clearer
that the multiplication can't overflow.
John Polstra [Wed, 9 Apr 1997 20:31:15 +0000 (20:31 +0000)]
Use "-pg" instead of "-p" for generating profiled object files.
The two options differ only when linking, but "-p" is incorrect
because it is associated with the old-style "prof" command, which we
do not support.
John Polstra [Wed, 9 Apr 1997 19:14:31 +0000 (19:14 +0000)]
Declare the constructor/destructor linker sets as extern rather than
common. Add one do-nothing element to each set. This ensures that
the linker realizes that they are linker sets rather than simple
commons, and makes it possible to link c++rt0.o into every shared
library regardless of whether it is a C++ library or not. Without
this change, the constructors and destructors in the main program
could be executed multiple times.
This change is going to make it possible to get rid of the
CPLUSPLUSLIB makefile variable once and for all. It is a piece of
the solution to PR gnu/3505 (gcc -shared). Finally, it fixes a
heretofore unreported bug: If CPLUSPLUSLIB was set in a makefile
for a C++ shared library that had no static constructors or
destructors in it, then the main program's constructors and
destructors would be executed multiple times.
John Polstra [Wed, 9 Apr 1997 18:59:36 +0000 (18:59 +0000)]
Process "lib/csu/i386" at the beginning of the "libraries" target,
instead of in the middle of it. Soon, "c++rt0.o" will be linked
into all shared libraries. An up-to-date version of it must be in
place before any shared libraries are built.
This is one piece of the solution for PR gnu/3035 (gcc -shared).
Ignore SIGPIPE or any user can quit ppp just telnetting to it
and quitting telnet immediately (while phone number dialed)
Log client connection/disconnection with PHASE_BIT now.
Add more error recovery on client disconnection
Bruce Evans [Wed, 9 Apr 1997 16:53:45 +0000 (16:53 +0000)]
Removed support for OLD_PIPE. <sys/stat.h> is now missing the hack that
supported nameless pipes being indistinguishable from fifos. We're not
going back.
Bruce Evans [Wed, 9 Apr 1997 16:10:27 +0000 (16:10 +0000)]
Use `ld -f' (actually `cc -Wl,-f') at `make depend' time to generate
almost perfect dependencies on crt0's and libraries. DPADD and
bsd.libnames.mk should go away soon. Use a new _EXTRADEPEND target
to implement this and to avoid editing of .depend when .depend isn;t
being rebuilt. The afterdepend target doesn't seem to be good for
anything and is now unused.
Fixed LDDESTDIR for the DESTDIR case when ${SHLIBDIR} != /usr/lib.
Added commented-out -nostdlib to LDDESTDIR for the DESTDIR case.
The wrong libraries may be used without this; however it breaks
linkage to crt0 and libc.
Bruce Evans [Wed, 9 Apr 1997 15:23:09 +0000 (15:23 +0000)]
Include <sys/buf.h> instead of <sys/vnode.h>. kern_sysctl.c no
longer has anything to do with vnodes and never had anything to do
with buffers, but it needs the definitions of B_READ and B_WRITE
for use with the bogus useracc() interface and was getting them
bogusly due to excessive cleanups in rev.1.49.
Reorganize the donor's gallery to include people who've donated
parts to replace freefall.freebsd.org (so that we can use what's currently
there to replace spatter).
Enables lnc driver on PC-98 to support NEC SV-98/2-B06 PCI card.
Cascade mode of DMA is disabled when PC98 is defined because PC-98
doesn't support it.
Fix an infinite loop caused by calling ahc_run_done queue while the
driver is waiting a bus settle delay. There should really be a facility
for the controller driver to "freeze" its queue during recovery operations
which would make all of this gymnastics unnecessary.
Bruce Evans [Mon, 7 Apr 1997 17:21:19 +0000 (17:21 +0000)]
Fixed bugs involving paths:
- LDADD was wrong for non-uniform obj trees.
- DPADD was wrong for separate obj tres.
Cleaned up nearby messes, mostly ones invoving paths:
- ../libtxi was useless.
- there were too many redefinitions and too many different names for the
same paths.
- use INTERNALLIB* to simplify libtxi/Makefile.
Bruce Evans [Mon, 7 Apr 1997 16:52:53 +0000 (16:52 +0000)]
Fixed bugs involving paths:
- LDADD was wrong for non-uniform obj trees.
- DPADD was wrong for separate obj tres.
Cleaned up nearby messes, mostly ones invoving paths:
- -I../libtxi was useless.
- there were too many redefinitions and too many different names for the
same paths.
- use INTERNALLIB* to simplify libtxi/Makefile.
Peter Wemm [Mon, 7 Apr 1997 11:42:09 +0000 (11:42 +0000)]
Lower the spl() of the new process from splhigh() right away, since
nothing else will lower it until either much later, or never(?) for
kernel processes.
This basically re-fixes what Bruce fixed in rev 1.29 of kern_fork.c,
which was broken again now the child does not execute back up the fork()
calling tree.
Peter Wemm [Mon, 7 Apr 1997 09:30:22 +0000 (09:30 +0000)]
Use UPAGES_HOLE instead of UPAGES in case it's changed some time.
Rename the PT* index KSTK* #defines to UMAX*, since we don't have a kernel
stack there any more..
These are used to calculate VM_MAXUSER_ADDRESS and USRSTACK, and really
do not want to be changed with UPAGES since BSD/OS 2.x binary compatability
depends on it.
Peter Wemm [Mon, 7 Apr 1997 08:38:19 +0000 (08:38 +0000)]
Clean up some dead wood. Kill the page table page for mapping the
proc0/idlePTD/bootstrap stack into place in user space. We save 4K.
Remove p0upa, it is now unneeded.
Peter Wemm [Mon, 7 Apr 1997 08:08:20 +0000 (08:08 +0000)]
Attempt to patch up gdb so that it has a chance of working with the new
UPAGES layout.. it was entirely too comfortable with reading and writing
the U area before. I've changed it to use PT_GETREGS/PT_PUTREGS
ptrace ops instead of READ_U etc. The code to read the registers from
core dumps is a bandaid at best. It seems to have problems reading
core dumps from dynamic linked executables still, but at least static
dumps work.
I desperately need help from a gdb/bfd expert. :-) HELP!!
Peter Wemm [Mon, 7 Apr 1997 07:16:06 +0000 (07:16 +0000)]
The biggie: Get rid of the UPAGES from the top of the per-process address
space. (!)
Have each process use the kernel stack and pcb in the kvm space. Since
the stacks are at a different address, we cannot copy the stack at fork()
and allow the child to return up through the function call tree to return
to user mode - create a new execution context and have the new process
begin executing from cpu_switch() and go to user mode directly.
In theory this should speed up fork a bit.
Context switch the tss_esp0 pointer in the common tss. This is a lot
simpler since than swithching the gdt[GPROC0_SEL].sd.sd_base pointer
to each process's tss since the esp0 pointer is a 32 bit pointer, and the
sd_base setting is split into three different bit sections at non-aligned
boundaries and requires a lot of twiddling to reset.
The 8K of memory at the top of the process space is now empty, and unmapped
(and unmappable, it's higher than VM_MAXUSER_ADDRESS).
Simplity the pmap code to manage process contexts, we no longer have to
double map the UPAGES, this simplifies and should measuably speed up fork().
The following parts came from John Dyson:
Set PG_G on the UPAGES that are now in kernel context, and invalidate
them when swapping them out.
Move the upages object (upobj) from the vmspace to the proc structure.
Now that the UPAGES (pcb and kernel stack) are out of user space, make
rfork(..RFMEM..) do what was intended by sharing the vmspace
entirely via reference counting rather than simply inheriting the mappings.
Peter Wemm [Mon, 7 Apr 1997 06:45:18 +0000 (06:45 +0000)]
No longer use an i386tss as the basis of our pcb - it wasn't particularly
convenient and makes life difficult for my next commit. We still need
an i386tss to point to for the tss slot in the gdt, so we use a common
tss shared between all processes.
Note that this is going to break debugging until this series of commits
is finished. core dumps will change again too. :-( we really need
a more modern core dump format that doesn't depend on the pcb/upages.
This change makes VM86 mode harder, but the following commits will remove
a lot of constraints for the VM86 system, including the possibility of
extending the pcb for an IO port map etc.
Peter Wemm [Sun, 6 Apr 1997 16:16:11 +0000 (16:16 +0000)]
Commit a typo fix that's been sitting in my tree for ages, quite forgotten.
The typo was detected once apon a time with the -Wunused compile option.
The result was that a block of code for implementing
madvise(.. MADV_SEQUENTIAL..) behavior was "dead" and unused, probably
negating the effect of activating the option.
Fixes to ibcs2_getdents, including using struct dirent instead of
struct direct, not using UFS' definition of DIRBLKSIZ, using directory
seek cookies to make reading non-UFS directories reliable
(e.g. cd9660, ext2fs).
A special thanks to Robert Eckardt for providing an ISC binary of GNU
ls so that I could test these changes.
Peter Dufault [Sun, 6 Apr 1997 11:14:13 +0000 (11:14 +0000)]
Make MOD_* macros almost consistent:
Use the name argument almost the same in all LKM types. Maintain
the current behavior for the external (e.g., modstat) name for DEV,
EXEC, and MISC types being #name ## "_mod" and SYCALL and VFS only
#name. This is a candidate for change and I vote just the name without
the "_mod".
Change the DISPATCH macro to MOD_DISPATCH for consistency with the
other macros.
Add an LKM_ANON #define to eliminate the magic -1 and associated
signed/unsigned warnings.
Add MOD_PRIVATE to support wcd.c's poking around in the lkm structure.
Peter Dufault [Sun, 6 Apr 1997 10:49:22 +0000 (10:49 +0000)]
Make MOD_* macros almost consistent:
Use the name argument almost the same in all LKM types. Maintain
the current behavior for the external (e.g., modstat) name for DEV,
EXEC, and MISC types being #name ## "_mod" and SYCALL and VFS only
#name. This is a candidate for change and I vote just the name without
the "_mod".
Change the DISPATCH macro to MOD_DISPATCH for consistency with the
other macros.
Add an LKM_ANON #define to eliminate the magic -1 and associated
signed/unsigned warnings.
Add MOD_PRIVATE to support wcd.c's poking around in the lkm structure.
John Dyson [Sun, 6 Apr 1997 03:04:31 +0000 (03:04 +0000)]
Make vm_map_protect be more complete about map simplification. This
is useful when a process changes it's page range protections very
much.
Submitted by: Alan Cox <alc@cs.rice.edu>
John Dyson [Sun, 6 Apr 1997 02:29:45 +0000 (02:29 +0000)]
Fix the gdb executable modify problem. Thanks to the detective work
by Alan Cox <alc@cs.rice.edu>, and his description of the problem.
The bug was primarily in procfs_mem, but the mistake likely happened
due to the lack of vm system support for the operation. I added
better support for selective marking of page dirty flags so that
vm_map_pageable(wiring) will not cause this problem again.
The code in procfs_mem is now less bogus (but maybe still a little
so.)
Instead of testing for both SELDI and SELDO in SSTAT0 in the poll for work
loop, test for them separately. The bug report from David Malone showed that
even though we had been reselected (SELDI was true), we sat in the poll for
work loop until the selection timeout timer expired. It may be that the
SSTAT0 register doesn't like to have more than one bit tested at a time.
I've seen stranger things than this on these parts.
Fix a bug in the selection timeout handler that was introduced when the
selection loop was merged with the poll_for_work loop. We cannot assume
that the SCB for the selection timeout is the current SCB. Instead we
must look at the SCB at the head of the waiting for selection list.
This fixes part of a problem reported by David Malone, but does not explain
why he was getting selection timeouts in the first place.
John Polstra [Sat, 5 Apr 1997 16:19:08 +0000 (16:19 +0000)]
Disallow "-p" when linking, with a diagnostic that recommends using
"-pg" and gprof(1) instead. FreeBSD does not support plain "-p" or
prof(1).
Plain "-p" is still allowed when just compiling. In the compile
phase, "-p" is identical "-pg". It is used by <bsd.lib.mk> for
building profiled object files.
Fix linux_getdents so that it can cope with filesystems which translate
the directory format (ext2fs, cd9660). For these filesystems, it must use
cookies to find the correct offset to use for subsequent reads. Without it,
linux /bin/ls tends to loop re-reading the same block over and over again.
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