diff options
Diffstat (limited to 'lib/libkse/arch/amd64/include/pthread_md.h')
| -rw-r--r-- | lib/libkse/arch/amd64/include/pthread_md.h | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/lib/libkse/arch/amd64/include/pthread_md.h b/lib/libkse/arch/amd64/include/pthread_md.h deleted file mode 100644 index 3e451fd..0000000 --- a/lib/libkse/arch/amd64/include/pthread_md.h +++ /dev/null @@ -1,268 +0,0 @@ -/*- - * Copyright (C) 2003 David Xu <davidxu@freebsd.org> - * Copyright (c) 2001 Daniel Eischen <deischen@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Neither the name of the author nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -/* - * Machine-dependent thread prototypes/definitions for the thread kernel. - */ -#ifndef _PTHREAD_MD_H_ -#define _PTHREAD_MD_H_ - -#include <stddef.h> -#include <sys/types.h> -#include <sys/kse.h> -#include <machine/sysarch.h> -#include <ucontext.h> - -#define KSE_STACKSIZE 16384 -#define DTV_OFFSET offsetof(struct tcb, tcb_dtv) - -#define THR_GETCONTEXT(ucp) \ - (void)_amd64_save_context(&(ucp)->uc_mcontext) -#define THR_SETCONTEXT(ucp) \ - (void)_amd64_restore_context(&(ucp)->uc_mcontext, 0, NULL) - -#define PER_KSE -#undef PER_THREAD - -struct kse; -struct pthread; -struct tdv; - -/* - * %fs points to a struct kcb. - */ -struct kcb { - struct tcb *kcb_curtcb; - struct kcb *kcb_self; /* self reference */ - struct kse *kcb_kse; - struct kse_mailbox kcb_kmbx; -}; - -struct tcb { - struct tcb *tcb_self; /* required by rtld */ - void *tcb_dtv; /* required by rtld */ - struct pthread *tcb_thread; - void *tcb_spare[1]; /* align tcb_tmbx to 16 bytes */ - struct kse_thr_mailbox tcb_tmbx; -}; - -/* - * Evaluates to the byte offset of the per-kse variable name. - */ -#define __kcb_offset(name) __offsetof(struct kcb, name) - -/* - * Evaluates to the type of the per-kse variable name. - */ -#define __kcb_type(name) __typeof(((struct kcb *)0)->name) - -/* - * Evaluates to the value of the per-kse variable name. - */ -#define KCB_GET64(name) ({ \ - __kcb_type(name) __result; \ - \ - u_long __i; \ - __asm __volatile("movq %%fs:%1, %0" \ - : "=r" (__i) \ - : "m" (*(u_long *)(__kcb_offset(name)))); \ - __result = (__kcb_type(name))__i; \ - \ - __result; \ -}) - -/* - * Sets the value of the per-kse variable name to value val. - */ -#define KCB_SET64(name, val) ({ \ - __kcb_type(name) __val = (val); \ - \ - u_long __i; \ - __i = (u_long)__val; \ - __asm __volatile("movq %1,%%fs:%0" \ - : "=m" (*(u_long *)(__kcb_offset(name))) \ - : "r" (__i)); \ -}) - -static __inline u_long -__kcb_readandclear64(volatile u_long *addr) -{ - u_long result; - - __asm __volatile ( - " xorq %0, %0;" - " xchgq %%fs:%1, %0;" - "# __kcb_readandclear64" - : "=&r" (result) - : "m" (*addr)); - return (result); -} - -#define KCB_READANDCLEAR64(name) ({ \ - __kcb_type(name) __result; \ - \ - __result = (__kcb_type(name)) \ - __kcb_readandclear64((u_long *)__kcb_offset(name)); \ - __result; \ -}) - - -#define _kcb_curkcb() KCB_GET64(kcb_self) -#define _kcb_curtcb() KCB_GET64(kcb_curtcb) -#define _kcb_curkse() ((struct kse *)KCB_GET64(kcb_kmbx.km_udata)) -#define _kcb_get_tmbx() KCB_GET64(kcb_kmbx.km_curthread) -#define _kcb_set_tmbx(value) KCB_SET64(kcb_kmbx.km_curthread, (void *)value) -#define _kcb_readandclear_tmbx() KCB_READANDCLEAR64(kcb_kmbx.km_curthread) - -/* - * The constructors. - */ -struct tcb *_tcb_ctor(struct pthread *, int); -void _tcb_dtor(struct tcb *tcb); -struct kcb *_kcb_ctor(struct kse *); -void _kcb_dtor(struct kcb *); - -/* Called from the KSE to set its private data. */ -static __inline void -_kcb_set(struct kcb *kcb) -{ - amd64_set_fsbase(kcb); -} - -/* Get the current kcb. */ -static __inline struct kcb * -_kcb_get(void) -{ - return (_kcb_curkcb()); -} - -static __inline struct kse_thr_mailbox * -_kcb_critical_enter(void) -{ - struct kse_thr_mailbox *crit; - - crit = _kcb_readandclear_tmbx(); - return (crit); -} - -static __inline void -_kcb_critical_leave(struct kse_thr_mailbox *crit) -{ - _kcb_set_tmbx(crit); -} - -static __inline int -_kcb_in_critical(void) -{ - return (_kcb_get_tmbx() == NULL); -} - -static __inline void -_tcb_set(struct kcb *kcb, struct tcb *tcb) -{ - kcb->kcb_curtcb = tcb; -} - -static __inline struct tcb * -_tcb_get(void) -{ - return (_kcb_curtcb()); -} - -static __inline struct pthread * -_get_curthread(void) -{ - struct tcb *tcb; - - tcb = _kcb_curtcb(); - if (tcb != NULL) - return (tcb->tcb_thread); - else - return (NULL); -} - -static __inline struct kse * -_get_curkse(void) -{ - return ((struct kse *)_kcb_curkse()); -} - -void _amd64_enter_uts(struct kse_mailbox *km, kse_func_t uts, void *stack, - size_t stacksz); -int _amd64_restore_context(mcontext_t *mc, intptr_t val, intptr_t *loc); -int _amd64_save_context(mcontext_t *mc); - -static __inline int -_thread_enter_uts(struct tcb *tcb, struct kcb *kcb) -{ - int ret; - - ret = _amd64_save_context(&tcb->tcb_tmbx.tm_context.uc_mcontext); - if (ret == 0) { - _amd64_enter_uts(&kcb->kcb_kmbx, kcb->kcb_kmbx.km_func, - kcb->kcb_kmbx.km_stack.ss_sp, - kcb->kcb_kmbx.km_stack.ss_size); - /* We should not reach here. */ - return (-1); - } - else if (ret < 0) - return (-1); - return (0); -} - -static __inline int -_thread_switch(struct kcb *kcb, struct tcb *tcb, int setmbox) -{ - extern int _libkse_debug; - - if ((kcb == NULL) || (tcb == NULL)) - return (-1); - kcb->kcb_curtcb = tcb; - - if (_libkse_debug == 0) { - tcb->tcb_tmbx.tm_lwp = kcb->kcb_kmbx.km_lwp; - if (setmbox != 0) - _amd64_restore_context( - &tcb->tcb_tmbx.tm_context.uc_mcontext, - (intptr_t)&tcb->tcb_tmbx, - (intptr_t *)(void *)&kcb->kcb_kmbx.km_curthread); - else - _amd64_restore_context( - &tcb->tcb_tmbx.tm_context.uc_mcontext, - 0, NULL); - /* We should not reach here. */ - } else { - if (setmbox) - kse_switchin(&tcb->tcb_tmbx, KSE_SWITCHIN_SETTMBX); - else - kse_switchin(&tcb->tcb_tmbx, 0); - } - - return (-1); -} -#endif |
