mirror of
https://review.haiku-os.org/haiku
synced 2025-01-30 18:24:53 +01:00
34b3b26b3b
23139 into trunk, with roughly the following changes (for details svn log the branch): * The int 99 syscall handler is now fully in assembly. * Added a sysenter/sysexit handler and use it on Pentiums that support it (via commpage). * Got rid of i386_handle_trap(). A bit of functionality was moved into the assembly handler which now uses a jump table to call C functions handling the respective interrupt. * Some optimizations to get user debugger support code out of the interrupt handling path. * Introduced a thread::flags fields which allows to skip handling of rare events (signals, user debug enabling/disabling) on the common interrupt handling path. * Got rid of the explicit iframe stack. The iframes can still be retrieved by iterating through the stack frames. * Made the commpage an architecture independent feature. It's used for the real time data stuff (instead of creating a separate area). * The x86 CPU modules can now provide processor optimized versions for common functions (currently memcpy() only). They are used in the kernel and are provided to the userland via commpage entries. * Introduced build system feature allowing easy use of C structure member offsets in assembly code. Changes after merging: * Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp (caused by refactoring and introduction of "call" debugger command). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96
51 lines
934 B
C
51 lines
934 B
C
/*
|
|
* Copyright 2002-2005, The Haiku Team. All rights reserved.
|
|
* Distributed under the terms of the MIT License.
|
|
*
|
|
* Copyright 2002, Travis Geiselbrecht. All rights reserved.
|
|
* Distributed under the terms of the NewOS License.
|
|
*/
|
|
#ifndef _KERNEL_ARCH_x86_THREAD_H
|
|
#define _KERNEL_ARCH_x86_THREAD_H
|
|
|
|
|
|
#include <arch/cpu.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct iframe *i386_get_user_iframe(void);
|
|
void *x86_next_page_directory(struct thread *from, struct thread *to);
|
|
|
|
void i386_return_from_signal();
|
|
void i386_end_return_from_signal();
|
|
|
|
// override empty macro
|
|
#undef arch_syscall_64_bit_return_value
|
|
void arch_syscall_64_bit_return_value();
|
|
|
|
|
|
static
|
|
inline struct thread *
|
|
arch_thread_get_current_thread(void)
|
|
{
|
|
struct thread *t;
|
|
read_dr3(t);
|
|
return t;
|
|
}
|
|
|
|
static inline void
|
|
arch_thread_set_current_thread(struct thread *t)
|
|
{
|
|
write_dr3(t);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _KERNEL_ARCH_x86_THREAD_H */
|
|
|