diff options
Diffstat (limited to 'lib/libpthread/arch/i386')
| -rw-r--r-- | lib/libpthread/arch/i386/Makefile.inc | 5 | ||||
| -rw-r--r-- | lib/libpthread/arch/i386/i386/pthread_md.c | 100 | ||||
| -rw-r--r-- | lib/libpthread/arch/i386/i386/thr_enter_uts.S | 44 | ||||
| -rw-r--r-- | lib/libpthread/arch/i386/i386/thr_getcontext.S | 156 | ||||
| -rw-r--r-- | lib/libpthread/arch/i386/include/atomic_ops.h | 51 | ||||
| -rw-r--r-- | lib/libpthread/arch/i386/include/pthread_md.h | 264 |
6 files changed, 0 insertions, 620 deletions
diff --git a/lib/libpthread/arch/i386/Makefile.inc b/lib/libpthread/arch/i386/Makefile.inc deleted file mode 100644 index 73a9a8a..0000000 --- a/lib/libpthread/arch/i386/Makefile.inc +++ /dev/null @@ -1,5 +0,0 @@ -# $FreeBSD$ - -.PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/${MACHINE_ARCH} - -SRCS+= thr_enter_uts.S thr_getcontext.S pthread_md.c diff --git a/lib/libpthread/arch/i386/i386/pthread_md.c b/lib/libpthread/arch/i386/i386/pthread_md.c deleted file mode 100644 index cbea6d4..0000000 --- a/lib/libpthread/arch/i386/i386/pthread_md.c +++ /dev/null @@ -1,100 +0,0 @@ -/*- - * Copyright (C) 2003 David Xu <davidxu@freebsd.org> - * Copyright (c) 2001,2003 Daniel Eischen <deischen@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Neither the name of the author nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <machine/cpufunc.h> -#include <machine/sysarch.h> - -#include <unistd.h> -#include <signal.h> -#include <stdlib.h> -#include <string.h> -#include <ucontext.h> - -#include "rtld_tls.h" -#include "pthread_md.h" - -struct tcb * -_tcb_ctor(struct pthread *thread, int initial) -{ - struct tcb *tcb; - void *oldtls; - - if (initial) { - __asm __volatile("movl %%gs:0, %0" : "=r" (oldtls)); - } else { - oldtls = NULL; - } - - tcb = _rtld_allocate_tls(oldtls, sizeof(struct tcb), 16); - if (tcb) { - tcb->tcb_thread = thread; - tcb->tcb_spare = 0; - bzero(&tcb->tcb_tmbx, sizeof(tcb->tcb_tmbx)); - } - - return (tcb); -} - -void -_tcb_dtor(struct tcb *tcb) -{ - _rtld_free_tls(tcb, sizeof(struct tcb), 16); -} - -/* - * Initialize KSD. This also includes setting up the LDT. - */ -struct kcb * -_kcb_ctor(struct kse *kse) -{ - struct kcb *kcb; - - kcb = malloc(sizeof(struct kcb)); - if (kcb != NULL) { - bzero(kcb, sizeof(struct kcb)); - kcb->kcb_self = kcb; - kcb->kcb_kse = kse; - } - return (kcb); -} - -void -_kcb_dtor(struct kcb *kcb) -{ - free(kcb); -} - -int -i386_set_gsbase(void *addr) -{ - - return (sysarch(I386_SET_GSBASE, &addr)); -} diff --git a/lib/libpthread/arch/i386/i386/thr_enter_uts.S b/lib/libpthread/arch/i386/i386/thr_enter_uts.S deleted file mode 100644 index bf6df8f..0000000 --- a/lib/libpthread/arch/i386/i386/thr_enter_uts.S +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Copyright (c) 2002 Jonathan Mini <mini@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 DANIEL EISCHEN 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. - */ - -#include <machine/asm.h> -__FBSDID("$FreeBSD$"); - - -/* - * _i386_enter_uts(struct kse_mailbox *km, kse_func_t uts, void *stack, - * long stacksz); - * +4 = km, +8 = uts, +12 = stack, +16 = size - */ -ENTRY(_i386_enter_uts) - movl %esp, %edx /* save stack */ - movl 12(%edx), %eax /* get bottom of stack */ - addl 16(%edx), %eax /* add length */ - movl %eax, %esp /* switch to uts stack */ - pushl 4(%edx) /* push the address of the mailbox */ - call *8(%edx) - ret diff --git a/lib/libpthread/arch/i386/i386/thr_getcontext.S b/lib/libpthread/arch/i386/i386/thr_getcontext.S deleted file mode 100644 index d9d300f..0000000 --- a/lib/libpthread/arch/i386/i386/thr_getcontext.S +++ /dev/null @@ -1,156 +0,0 @@ -/*- - * 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 DANIEL EISCHEN 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. - */ - -#include <machine/asm.h> -__FBSDID("$FreeBSD$"); - -/* - * Where do we define these? - */ -#define MC_LEN_OFFSET 80 /* offset to mc_len from mcontext */ -#define MC_LEN 640 /* mc_len <machine/ucontext.h> */ -#define MC_FPFMT_OFFSET 84 -#define MC_FPFMT_NODEV 0x10000 -#define MC_FPFMT_387 0x10001 -#define MC_FPFMT_XMM 0x10002 -#define MC_OWNEDFP_OFFSET 88 -#define MC_OWNEDFP_NONE 0x20000 -#define MC_OWNEDFP_FPU 0x20001 -#define MC_OWNEDFP_PCB 0x20002 -#define MC_FPREGS_OFFSET 96 /* offset to FP regs from mcontext */ -#define MC_FP_CW_OFFSET 96 /* offset to FP control word */ - -/* - * int thr_setcontext(mcontext_t *mcp, intptr_t val, intptr_t *loc) - * - * Restores the context in mcp. - * - * Returns 0 if there are no errors; -1 otherwise - */ - .weak CNAME(_thr_setcontext) - .set CNAME(_thr_setcontext),CNAME(__thr_setcontext) -ENTRY(__thr_setcontext) - movl 4(%esp), %edx /* get address of mcontext */ - cmpl $0, %edx /* check for null pointer */ - jne 1f - movl $-1, %eax - jmp 8f -1: cmpl $MC_LEN, MC_LEN_OFFSET(%edx) /* is context valid? */ - je 2f - movl $-1, %eax /* bzzzt, invalid context */ - jmp 8f -2: /*movl 4(%edx), %gs*/ /* we don't touch %gs */ - movw 8(%edx), %fs - movw 12(%edx), %es - movw 16(%edx), %ds - movw 76(%edx), %ss - movl 20(%edx), %edi - movl 24(%edx), %esi - movl 28(%edx), %ebp - movl %esp, %ecx /* save current stack in ecx */ - movl 72(%edx), %esp /* switch to context defined stack */ - pushl 60(%edx) /* push return address on stack */ - pushl 44(%edx) /* push ecx on stack */ - pushl 48(%edx) /* push eax on stack */ - /* - * if (mc_fpowned == MC_OWNEDFP_FPU || mc_fpowned == MC_OWNEDFP_PCB) { - * if (mc_fpformat == MC_FPFMT_387) - * restore 387 FP register format - * else if (mc_fpformat == MC_FPFMT_XMM) - * restore XMM/SSE FP register format - * } - */ - cmpl $MC_OWNEDFP_FPU, MC_OWNEDFP_OFFSET(%edx) - je 3f - cmpl $MC_OWNEDFP_PCB, MC_OWNEDFP_OFFSET(%edx) - jne 5f -3: cmpl $MC_FPFMT_387, MC_FPFMT_OFFSET(%edx) - jne 4f - frstor MC_FPREGS_OFFSET(%edx) /* restore 387 FP regs */ - jmp 6f -4: cmpl $MC_FPFMT_XMM, MC_FPFMT_OFFSET(%edx) - jne 5f - fxrstor MC_FPREGS_OFFSET(%edx) /* restore XMM FP regs */ - jmp 6f -5: fninit - fldcw MC_FP_CW_OFFSET(%edx) -6: pushl 68(%edx) /* push flags register on stack*/ - movl 36(%edx), %ebx /* restore ebx and edx */ - movl 40(%edx), %edx - movl 12(%ecx), %eax /* get 3rd arg (loc) */ - cmpl $0, %eax /* do nothing if loc == null */ - je 7f - movl 8(%ecx), %ecx /* get 2nd arg (val) */ - movl %ecx, (%eax) /* set loc = val */ -7: popfl /* restore flags after test */ - popl %eax /* restore eax and ecx last */ - popl %ecx -8: ret - -/* - * int thr_getcontext(mcontext_t *mcp); - * - * Returns -1 if there is an error, 0 no errors; 1 upon return - * from a setcontext(). - */ - .weak CNAME(_thr_getcontext) - .set CNAME(_thr_getcontext),CNAME(__thr_getcontext) -ENTRY(__thr_getcontext) - pushl %edx /* save edx */ - movl 8(%esp), %edx /* get address of mcontext */ - cmpl $0, %edx /* check for null pointer */ - jne 1f - popl %edx /* restore edx and stack */ - movl $-1, %eax - jmp 2f -1: /*movw %gs, 4(%edx)*/ /* we don't touch %gs */ - movw %fs, 8(%edx) - movw %es, 12(%edx) - movw %ds, 16(%edx) - movw %ss, 76(%edx) - movl %edi, 20(%edx) - movl %esi, 24(%edx) - movl %ebp, 28(%edx) - movl %ebx, 36(%edx) - movl $1, 48(%edx) /* store successful return in eax */ - popl %eax /* get saved value of edx */ - movl %eax, 40(%edx) /* save edx */ - movl %ecx, 44(%edx) - movl (%esp), %eax /* get return address */ - movl %eax, 60(%edx) /* save return address */ - fnstcw MC_FP_CW_OFFSET(%edx) - movl $MC_LEN, MC_LEN_OFFSET(%edx) - movl $MC_FPFMT_NODEV, MC_FPFMT_OFFSET(%edx) /* no FP */ - movl $MC_OWNEDFP_NONE, MC_OWNEDFP_OFFSET(%edx) /* no FP */ - pushfl - popl %eax /* get eflags */ - movl %eax, 68(%edx) /* store eflags */ - movl %esp, %eax /* setcontext pushes the return */ - addl $4, %eax /* address onto the top of the */ - movl %eax, 72(%edx) /* stack; account for this */ - movl 40(%edx), %edx /* restore edx -- is this needed? */ - xorl %eax, %eax /* return 0 */ -2: ret diff --git a/lib/libpthread/arch/i386/include/atomic_ops.h b/lib/libpthread/arch/i386/include/atomic_ops.h deleted file mode 100644 index 7bc3d1b..0000000 --- a/lib/libpthread/arch/i386/include/atomic_ops.h +++ /dev/null @@ -1,51 +0,0 @@ -/*- - * 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. - * - * $FreeBSD$ - */ - -#ifndef _ATOMIC_OPS_H_ -#define _ATOMIC_OPS_H_ - -/* - * Atomic swap: - * Atomic (tmp = *dst, *dst = val), then *res = tmp - * - * void atomic_swap32(intptr_t *dst, intptr_t val, intptr_t *res); - */ -static inline void -atomic_swap32(intptr_t *dst, intptr_t val, intptr_t *res) -{ - __asm __volatile( - "xchgl %2, %1; movl %2, %0" - : "=m" (*res) : "m" (*dst), "r" (val) : "memory"); -} - -#define atomic_swap_ptr(d, v, r) \ - atomic_swap32((intptr_t *)d, (intptr_t)v, (intptr_t *)r) - -#define atomic_swap_int(d, v, r) \ - atomic_swap32((intptr_t *)d, (intptr_t)v, (intptr_t *)r) -#endif diff --git a/lib/libpthread/arch/i386/include/pthread_md.h b/lib/libpthread/arch/i386/include/pthread_md.h deleted file mode 100644 index 52afd6a..0000000 --- a/lib/libpthread/arch/i386/include/pthread_md.h +++ /dev/null @@ -1,264 +0,0 @@ -/*- - * Copyright (c) 2002 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. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 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> - -extern int _thr_setcontext(mcontext_t *, intptr_t, intptr_t *); -extern int _thr_getcontext(mcontext_t *); - -#define KSE_STACKSIZE 16384 -#define DTV_OFFSET offsetof(struct tcb, tcb_dtv) - -#define THR_GETCONTEXT(ucp) _thr_getcontext(&(ucp)->uc_mcontext) -#define THR_SETCONTEXT(ucp) _thr_setcontext(&(ucp)->uc_mcontext, 0, NULL) - -#define PER_KSE -#undef PER_THREAD - -struct kse; -struct pthread; - -/* - * %gs 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; /* 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_GET32(name) ({ \ - __kcb_type(name) __result; \ - \ - u_int __i; \ - __asm __volatile("movl %%gs:%1, %0" \ - : "=r" (__i) \ - : "m" (*(u_int *)(__kcb_offset(name)))); \ - __result = (__kcb_type(name))__i; \ - \ - __result; \ -}) - -/* - * Sets the value of the per-kse variable name to value val. - */ -#define KCB_SET32(name, val) ({ \ - __kcb_type(name) __val = (val); \ - \ - u_int __i; \ - __i = (u_int)__val; \ - __asm __volatile("movl %1,%%gs:%0" \ - : "=m" (*(u_int *)(__kcb_offset(name))) \ - : "r" (__i)); \ -}) - -static __inline u_long -__kcb_readandclear32(volatile u_long *addr) -{ - u_long result; - - __asm __volatile ( - " xorl %0, %0;" - " xchgl %%gs:%1, %0;" - "# __kcb_readandclear32" - : "=&r" (result) - : "m" (*addr)); - return (result); -} - -#define KCB_READANDCLEAR32(name) ({ \ - __kcb_type(name) __result; \ - \ - __result = (__kcb_type(name)) \ - __kcb_readandclear32((u_long *)__kcb_offset(name)); \ - __result; \ -}) - - -#define _kcb_curkcb() KCB_GET32(kcb_self) -#define _kcb_curtcb() KCB_GET32(kcb_curtcb) -#define _kcb_curkse() ((struct kse *)KCB_GET32(kcb_kmbx.km_udata)) -#define _kcb_get_tmbx() KCB_GET32(kcb_kmbx.km_curthread) -#define _kcb_set_tmbx(value) KCB_SET32(kcb_kmbx.km_curthread, (void *)value) -#define _kcb_readandclear_tmbx() KCB_READANDCLEAR32(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) -{ - i386_set_gsbase(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 _i386_enter_uts(struct kse_mailbox *km, kse_func_t uts, void *stack, - size_t stacksz); - -static __inline int -_thread_enter_uts(struct tcb *tcb, struct kcb *kcb) -{ - int ret; - - ret = _thr_getcontext(&tcb->tcb_tmbx.tm_context.uc_mcontext); - if (ret == 0) { - _i386_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) - _thr_setcontext(&tcb->tcb_tmbx.tm_context.uc_mcontext, - (intptr_t)&tcb->tcb_tmbx, - (intptr_t *)&kcb->kcb_kmbx.km_curthread); - else - _thr_setcontext(&tcb->tcb_tmbx.tm_context.uc_mcontext, - 0, NULL); - } else { - if (setmbox) - kse_switchin(&tcb->tcb_tmbx, KSE_SWITCHIN_SETTMBX); - else - kse_switchin(&tcb->tcb_tmbx, 0); - } - - /* We should not reach here. */ - return (-1); -} - -#endif |
