History log of /freebsd/sys/kern/imgact_aout.c (Results 126 – 150 of 277)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
# b1028ad1 19-Feb-1999 Luoqi Chen <luoqi@FreeBSD.org>

Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This
is the preparation step for moving pmap storage out of vmspace proper.

Reviewed by: Alan Cox <alc@cs.rice.edu>
Matthew Dill

Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This
is the preparation step for moving pmap storage out of vmspace proper.

Reviewed by: Alan Cox <alc@cs.rice.edu>
Matthew Dillion <dillon@apollo.backplane.com>

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Revision tags: release/3.1.0
# 820ca326 29-Jan-1999 Matthew Dillon <dillon@FreeBSD.org>

*_execsw static structures cannot be const due to the way they interact
with EXEC_SET, DECLARE_MODULE, and module_register. Specifically,
module_register. We may eventually be able to make

*_execsw static structures cannot be const due to the way they interact
with EXEC_SET, DECLARE_MODULE, and module_register. Specifically,
module_register. We may eventually be able to make these const, but
not now.

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Revision tags: release/3.0.0, release/2.2.8
# 9fe42598 01-Jan-1999 Bruce Evans <bde@FreeBSD.org>

Fixed bitrot in a comment. Fixed some style bugs.


# aa855a59 16-Oct-1998 Peter Wemm <peter@FreeBSD.org>

*gulp*. Jordan specifically OK'ed this..

This is the bulk of the support for doing kld modules. Two linker_sets
were replaced by SYSINIT()'s. VFS's and exec handlers are self registered.
kld is n

*gulp*. Jordan specifically OK'ed this..

This is the bulk of the support for doing kld modules. Two linker_sets
were replaced by SYSINIT()'s. VFS's and exec handlers are self registered.
kld is now a superset of lkm. I have converted most of them, they will
follow as a seperate commit as samples.
This all still works as a static a.out kernel using LKM's.

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# 22d4b0fb 14-Sep-1998 John Polstra <jdp@FreeBSD.org>

Add provisions for variant core dump file formats, depending on the
object format of the executable being dumped. This is the first
step toward producing ELF core dumps in the proper format. I will

Add provisions for variant core dump file formats, depending on the
object format of the executable being dumped. This is the first
step toward producing ELF core dumps in the proper format. I will
commit the code to generate the ELF core dumps Real Soon Now. In
the meantime, ELF executables won't dump core at all. That is
probably no less useful than dumping a.out-style core dumps as they
have done until now.

Submitted by: Alex <garbanzo@hooked.net> (with very minor changes by me)

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Revision tags: release/2.2.7
# 7cd99438 15-Jul-1998 Bruce Evans <bde@FreeBSD.org>

Cast u_longs to uintptr_t before casting them to pointers. Don't
attempt to even partially support systems with function pointers
larger than object pointers.


Revision tags: release/2.2.6
# 39e4376b 20-Feb-1998 Bruce Evans <bde@FreeBSD.org>

Removed unused #includes.


# a3bdf7a3 03-Feb-1998 Bruce Evans <bde@FreeBSD.org>

Fixed staticization.


# 1616db3c 11-Jan-1998 John Dyson <dyson@FreeBSD.org>

Implement the first page access for object type determination more
VM clean. Also, use vm_map_insert instead of vm_mmap.
Reviewed by: dg@freebsd.org


# 95e5e988 06-Jan-1998 John Dyson <dyson@FreeBSD.org>

Make our v_usecount vnode reference count work identically to the
original BSD code. The association between the vnode and the vm_object
no longer includes reference counts. The major difference is

Make our v_usecount vnode reference count work identically to the
original BSD code. The association between the vnode and the vm_object
no longer includes reference counts. The major difference is that
vm_object's are no longer freed gratuitiously from the vnode, and so
once an object is created for the vnode, it will last as long as the
vnode does.

When a vnode object reference count is incremented, then the underlying
vnode reference count is incremented also. The two "objects" are now
more intimately related, and so the interactions are now much less
complex.

When vnodes are now normally placed onto the free queue with an object still
attached. The rundown of the object happens at vnode rundown time, and
happens with exactly the same filesystem semantics of the original VFS
code. There is absolutely no need for vnode_pager_uncache and other
travesties like that anymore.

A side-effect of these changes is that SMP locking should be much simpler,
the I/O copyin/copyout optimizations work, NFS should be more ponderable,
and further work on layered filesystems should be less frustrating, because
of the totally coherent management of the vnode objects and vnodes.

Please be careful with your system while running this code, but I would
greatly appreciate feedback as soon a reasonably possible.

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Revision tags: release/2.2.5_cvs
# e4ba6a82 02-Sep-1997 Bruce Evans <bde@FreeBSD.org>

Removed unused #includes.


# 282ec22c 26-Aug-1997 Bruce Evans <bde@FreeBSD.org>

Removed redundant test against MAXDSIZ (the rlimit test is stronger).


Revision tags: release/2.2.2_cvs
# 5856e12e 13-Apr-1997 John Dyson <dyson@FreeBSD.org>

Fully implement vfork. Vfork is now much much faster than even our
fork. (On my machine, fork is about 240usecs, vfork is 78usecs.)

Implement rfork(!RFPROC !RFMEM), which allows a thread to divorc

Fully implement vfork. Vfork is now much much faster than even our
fork. (On my machine, fork is about 240usecs, vfork is 78usecs.)

Implement rfork(!RFPROC !RFMEM), which allows a thread to divorce its memory
from the other threads of a group.

Implement rfork(!RFPROC RFCFDG), which closes all file descriptors, eliminating
possible existing shares with other threads/processes.

Implement rfork(!RFPROC RFFDG), which divorces the file descriptors for a
thread from the rest of the group.

Fix the case where a thread does an exec. It is almost nonsense for a thread
to modify the other threads address space by an exec, so we
now automatically divorce the address space before modifying it.

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Revision tags: release/2.2.1_cvs, release/2.2.0, release/2.1.7_cvs
# 6875d254 22-Feb-1997 Peter Wemm <peter@FreeBSD.org>

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.


# 996c772f 10-Feb-1997 John Dyson <dyson@FreeBSD.org>

This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The syst

This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
Mount_std mounts will not work until the getfsent
library routine is changed.

Reviewed by: various people
Submitted by: Jeffery Hsu <hsu@freebsd.org>

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Revision tags: release/2.1.6_cvs, release/2.1.6.1
# 1130b656 14-Jan-1997 Jordan K. Hubbard <jkh@FreeBSD.org>

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

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# e9822d92 23-Dec-1996 Joerg Wunsch <joerg@FreeBSD.org>

Make DFLDSIZ and MAXDSIZ fully-supported options.

"Don't forget to do a ``make depend''" :-)


Revision tags: release/2.1.5_cvs
# e0c95ed9 31-Aug-1996 Bruce Evans <bde@FreeBSD.org>

Fixed the easy cases of const poisoning in the kernel. Cosmetic.


# f8845af0 02-May-1996 Poul-Henning Kamp <phk@FreeBSD.org>

First pass at cleaning up macros relating to pages, clusters and all that.


# a794e791 01-May-1996 Bruce Evans <bde@FreeBSD.org>

Removed unnecessary #includes from <sys/imgact.h> so that it is
self-sufficient and added explicit #includes where required.


# 39f70d45 08-Apr-1996 David Greenman <dg@FreeBSD.org>

Killed sections 3 and 4 of my copyright as I don't agree with it (I believe
it to be unnecessarily restrictive). For tty_subr.c, update to my standard
copyright.


# ede8dc43 19-Mar-1996 Bruce Evans <bde@FreeBSD.org>

Fixed unsigned longs that should have been vm_offset_t.

vm_offset_t is currently unsigned long but should probably be plain
unsigned for i386's to match the choice of minimal types to represent
for

Fixed unsigned longs that should have been vm_offset_t.

vm_offset_t is currently unsigned long but should probably be plain
unsigned for i386's to match the choice of minimal types to represent
for fixed-width types in Lite2. Anyway, it shouldn't be assumed
to be unsigned long.

I only fixed the type mismatches that were detected when I changed
vm_offset_t to unsigned. Only pointer type mismatches were detected.

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# 185dc761 03-Mar-1996 Peter Wemm <peter@FreeBSD.org>

Deal with NetBSD byte-swapped a.out magic when checking the MID to exclude
linux binaries from the *BSD a.out loader. This is a hack, but lets me run
static NetBSD binaries. Dynamic binaries are a m

Deal with NetBSD byte-swapped a.out magic when checking the MID to exclude
linux binaries from the *BSD a.out loader. This is a hack, but lets me run
static NetBSD binaries. Dynamic binaries are a much bigger problem because
the shared libraries would conflict with our native libraries, so a
/compat/netbsd alternate namespace and translation would be needed.

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# d66a5066 02-Mar-1996 Peter Wemm <peter@FreeBSD.org>

Mega-commit for Linux emulator update.. This has been stress tested under
netscape-2.0 for Linux running all the Java stuff. The scrollbars are now
working, at least on my machine. (whew! :-)

I'm

Mega-commit for Linux emulator update.. This has been stress tested under
netscape-2.0 for Linux running all the Java stuff. The scrollbars are now
working, at least on my machine. (whew! :-)

I'm uncomfortable with the size of this commit, but it's too
inter-dependant to easily seperate out.

The main changes:

COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386
machine dependent section into the linux emulator itself. The int 0x80
syscall code was almost identical to the lcall 7,0 code and a minor tweak
allows them to both be used with the same C code. All kernels can now
just modload the lkm and it'll DTRT without having to rebuild the kernel
first. Like IBCS2, you can statically compile it in with "options LINUX".

A pile of new syscalls implemented, including getdents(), llseek(),
readv(), writev(), msync(), personality(). The Linux-ELF libraries want
to use some of these.

linux_select() now obeys Linux semantics, ie: returns the time remaining
of the timeout value rather than leaving it the original value.

Quite a few bugs removed, including incorrect arguments being used in
syscalls.. eg: mixups between passing the sigset as an int, vs passing
it as a pointer and doing a copyin(), missing return values, unhandled
cases, SIOC* ioctls, etc.

The build for the code has changed. i386/conf/files now knows how
to build linux_genassym and generate linux_assym.h on the fly.

Supporting changes elsewhere in the kernel:

The user-mode signal trampoline has moved from the U area to immediately
below the top of the stack (below PS_STRINGS). This allows the different
binary emulations to have their own signal trampoline code (which gets rid
of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so
that the emulator can provide the exact "struct sigcontext *" argument to
the program's signal handlers.

The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which
have the same values as the re-used SA_DISABLE and SA_ONSTACK which are
intended for sigaction only. This enables the support of a SA_RESETHAND
flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal
semantics where the signal handler is reset when it's triggered.

makesyscalls.sh no longer appends the struct sysentvec on the end of the
generated init_sysent.c code. It's a lot saner to have it in a seperate
file rather than trying to update the structure inside the awk script. :-)

At exec time, the dozen bytes or so of signal trampoline code are copied
to the top of the user's stack, rather than obtaining the trampoline code
the old way by getting a clone of the parent's user area. This allows
Linux and native binaries to freely exec each other without getting
trampolines mixed up.

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# bd7e5f99 19-Jan-1996 John Dyson <dyson@FreeBSD.org>

Eliminated many redundant vm_map_lookup operations for vm_mmap.
Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish
overhead for merged cache.
Efficiency improvement for vfs_cl

Eliminated many redundant vm_map_lookup operations for vm_mmap.
Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish
overhead for merged cache.
Efficiency improvement for vfs_cluster. It used to do alot of redundant
calls to cluster_rbuild.
Correct the ordering for vrele of .text and release of credentials.
Use the selective tlb update for 486/586/P6.
Numerous fixes to the size of objects allocated for files. Additionally,
fixes in the various pagers.
Fixes for proper positioning of vnode_pager_setsize in msdosfs and ext2fs.
Fixes in the swap pager for exhausted resources. The pageout code
will not as readily thrash.
Change the page queue flags (PG_ACTIVE, PG_INACTIVE, PG_FREE, PG_CACHE) into
page queue indices (PQ_ACTIVE, PQ_INACTIVE, PQ_FREE, PQ_CACHE),
thereby improving efficiency of several routines.
Eliminate even more unnecessary vm_page_protect operations.
Significantly speed up process forks.
Make vm_object_page_clean more efficient, thereby eliminating the pause
that happens every 30seconds.
Make sequential clustered writes B_ASYNC instead of B_DELWRI even in the
case of filesystems mounted async.
Fix a panic with busy pages when write clustering is done for non-VMIO
buffers.

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