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The iframe stack is now in a special structure iframe_stack.

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Introduced a gBootFrameStack that is used until the first thread structure
is available - this allows stack crawls and useful register dumps during
early startup. Could also be solved differently by making sure there is
always a thread structure installed in %dr3 (ie. the boot thread would
get a static thread structure instead of a static iframe stack only).
This might be a better solution as i386_handle_trap() would no longer
need to check for an existing thread structure.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12230 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-04-04 14:13:25 +00:00
parent edb5566393
commit 9d06770cdc
5 changed files with 79 additions and 55 deletions
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headers/private/kernel/arch/x86/thread_struct.h
+12 -8
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@@ -1,10 +1,10 @@
/*
** Copyright 2002-2004, The Haiku Team. All rights reserved.
** Distributed under the terms of the Haiku License.
**
** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
** Distributed under the terms of the NewOS License.
*/
* Copyright 2002-2005, The Haiku Team. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
* Distributed under the terms of the NewOS License.
*/
#ifndef _KERNEL_ARCH_x86_THREAD_STRUCT_H
#define _KERNEL_ARCH_x86_THREAD_STRUCT_H
@@ -19,14 +19,18 @@ struct farcall {
#define IFRAME_TRACE_DEPTH 4
struct iframe_stack {
struct iframe *frames[IFRAME_TRACE_DEPTH];
int32 index;
};
// architecture specific thread info
struct arch_thread {
struct farcall current_stack;
struct farcall interrupt_stack;
// used to track interrupts on this thread
struct iframe *iframes[IFRAME_TRACE_DEPTH];
int iframe_ptr;
struct iframe_stack iframes;
// 512 byte floating point save point
uint8 fpu_state[512];