linux-stable.git/include/asm-um, branch linux-2.6.14.y

[PATCH] uml: Fix sysrq-r support for skas mode

2005-10-04T20:22:01+00:00

The old code had the IP and SP coming from the registers in the thread
struct, which are completely wrong since those are the userspace
registers.  This fixes that by pulling the correct values from the
jmp_buf in which the kernel state of each thread is stored.

Signed-off-by: Allan Graves 
Signed-off-by: Jeff Dike 
Signed-off-by: Linus Torvalds

[PATCH] uml get_user() NULL noise removal

2005-09-30T15:42:24+00:00

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] uml: don't redundantly mark pte as newpage in pte_modify

2005-09-23T05:17:36+00:00

pte_modify marks a page as needing flush, which is redundant because the
resulting PTE is still set with set_pte, which already handles that.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso 
Cc: Jeff Dike 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] uml: adapt asm/futex.h to our arch

2005-09-21T23:16:29+00:00

Follow up to 4732efbeb997189d9f9b04708dc26bf8613ed721 - uml must just reuse
as-is the backing architecture support. There is a micro-fixup is needed for the
included file, which won't affect i386 behaviour at all.

I've not tested compilation on x86_64, only on x86, but the code is almost the
same except the culprit test, so everything should be ok on x86_64 too.

Cc: Jakub Jelinek 
Signed-off-by: Paolo 'Blaisorblade' Giarrusso 
Signed-off-by: Linus Torvalds

[PATCH] uml: UML/i386 cmpxchg fix

2005-09-17T18:50:01+00:00

Using native cmpxchg offers a slight performance improvement in uml/i386.

Signed-off-by: Jeff Dike 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] uml: breakpoint an arbitrary thread

2005-09-17T18:49:59+00:00

This patch implements a stack trace for a thread, not unlike sysrq-t does.
The advantage to this is that a break point can be placed on showreqs, so that
upon showing the stack, you jump immediately into the debugger.  While sysrq-t
does the same thing, sysrq-t shows *all* threads stacks.  It also doesn't work
right now.  In the future, I thought it might be acceptable to make this show
all pids stacks, but perhaps leaving well enough alone and just using sysrq-t
would be okay.  For now, upon receiving the stack command, UML switches
context to that thread, dumps its registers, and then switches context back to
the original thread.  Since UML compacts all threads into one of 4 host
threads, this sort of mechanism could be expanded in the future to include
other debugging helpers that sysrq does not cover.

Note by jdike - The main benefit to this is that it brings an arbitrary thread
back into context, where it can be examined by gdb.  The fact that it dumps it
stack is secondary.  This provides the capability to examine a sleeping
thread, which has existed in tt mode, but not in skas mode until now.

Also, the other threads, that sysrq doesn't cover, can be gdb-ed directly
anyway.

Signed-off-by: Allan Graves
Signed-off-by: Jeff Dike 
Cc: Paolo Giarrusso 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] uml spinlock breakage

2005-09-10T23:50:01+00:00

mingo missed that one...

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] uml: inline mk_pte and various friends

2005-09-10T19:00:18+00:00

Turns out that, for UML, a *lot* of VM-related trivial functions are not
inlined but rather normal functions.

In other sections of UML code, this is justified by having files which
interact with the host and cannot therefore include kernel headers, but in
this case there's no such justification.

I've had to turn many of them to macros because of missing declarations. While
doing this, I've decided to reuse some already existing macros.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso 
Signed-off-by: Linus Torvalds

[PATCH] remove asm-*/hdreg.h

2005-09-07T23:57:30+00:00

unused and useless..

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] auxiliary vector cleanups

2005-09-07T23:57:21+00:00

The size of auxiliary vector is fixed at 42 in linux/sched.h.  But it isn't
very obvious when looking at linux/elf.h.  This patch adds AT_VECTOR_SIZE
so that we can change it if necessary when a new vector is added.

Because of include file ordering problems, doing this necessitated the
extraction of the AT_* symbols into a standalone header file.

Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds