4304bb9894
* Some things are currently ifndef'd out completely for x86_64 because they aren't implemented, there's a few other ifdef's to handle x86_64 differences but most of the code works unchanged. * Renamed some i386_* functions to x86_*. * Added a temporary method for setting the current thread on x86_64 (a global variable, not SMP safe). This will be changed to be done via the GS segment but I've not implemented that yet.
82 lines
1.3 KiB
C
82 lines
1.3 KiB
C
/*
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* Copyright 2002-2011, The Haiku Team. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_ARCH_x86_THREAD_H
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#define _KERNEL_ARCH_x86_THREAD_H
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#include <arch/cpu.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct iframe* i386_get_user_iframe(void);
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struct iframe* i386_get_current_iframe(void);
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struct iframe* i386_get_thread_user_iframe(Thread* thread);
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uint32 x86_next_page_directory(Thread* from, Thread* to);
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void x86_restart_syscall(struct iframe* frame);
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void x86_set_tls_context(Thread* thread);
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#ifdef __x86_64__
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// TODO
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extern Thread* gCurrentThread;
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static inline Thread*
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arch_thread_get_current_thread(void)
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{
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return gCurrentThread;
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}
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static inline void
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arch_thread_set_current_thread(Thread* t)
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{
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gCurrentThread = t;
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}
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#else // __x86_64__
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// override empty macro
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#undef arch_syscall_64_bit_return_value
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void arch_syscall_64_bit_return_value(void);
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static inline Thread*
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arch_thread_get_current_thread(void)
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{
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Thread* t = (Thread*)x86_read_dr3();
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return t;
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}
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static inline void
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arch_thread_set_current_thread(Thread* t)
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{
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x86_write_dr3(t);
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}
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#endif // __x86_64__
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_ARCH_x86_THREAD_H */
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