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Diffstat (limited to 'libthreads/i386/thread.c')
| -rw-r--r-- | libthreads/i386/thread.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/libthreads/i386/thread.c b/libthreads/i386/thread.c deleted file mode 100644 index 00537be5..00000000 --- a/libthreads/i386/thread.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1992,1991,1990 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ -/* - * HISTORY - * $Log: thread.c,v $ - * Revision 2.8 93/02/02 21:54:58 mrt - * Changed include of mach/mach.h to mach.h. - * [93/02/02 mrt] - * - * Revision 2.7 93/01/14 18:05:15 danner - * Converted file to ANSI C. - * Fixed argument types. - * [92/12/18 pds] - * - * Revision 2.6 91/07/31 18:37:07 dbg - * Undefine cthread_sp macro around function definition. - * [91/07/30 17:36:23 dbg] - * - * Revision 2.3 90/06/02 15:13:53 rpd - * Added definition of cthread_sp. - * [90/06/02 rpd] - * - * Revision 2.2 90/05/03 15:55:03 dbg - * Created (from 68020 version). - * [90/02/05 dbg] - * - */ -/* - * i386/thread.c - * - */ - -#ifndef lint -char rcs_id[] = "$Header: cvs-sans-libpthread/hurd/libthreads/i386/thread.c,v 1.7 2002/05/27 02:50:10 roland Exp $"; -#endif /* not lint */ - - -#include <cthreads.h> -#include "cthread_internals.h" -#include <mach.h> -#include <mach/i386/mach_i386.h> -#include <mach/mig_errors.h> - -#define HURD_TLS_DESC_DECL(desc, tcb) \ - struct descriptor desc = \ - { /* low word: */ \ - 0xffff /* limit 0..15 */ \ - | (((unsigned int) (tcb)) << 16) /* base 0..15 */ \ - , /* high word: */ \ - ((((unsigned int) (tcb)) >> 16) & 0xff) /* base 16..23 */ \ - | ((0x12 | 0x60 | 0x80) << 8) /* access = ACC_DATA_W|ACC_PL_U|ACC_P */ \ - | (0xf << 16) /* limit 16..19 */ \ - | ((4 | 8) << 20) /* granularity = SZ_32|SZ_G */ \ - | (((unsigned int) (tcb)) & 0xff000000) /* base 24..31 */ \ - } - -/* - * Set up the initial state of a MACH thread - * so that it will invoke cthread_body(child) - * when it is resumed. - */ -void -cproc_setup(register cproc_t child, thread_t thread, tcbhead_t *tcb, void (*routine)(cproc_t)) -{ - extern unsigned int __hurd_threadvar_max; /* GNU */ - register int *top = (int *) - cproc_stack_base (child, - sizeof(ur_cthread_t *) + - /* Account for GNU per-thread variables. */ - __hurd_threadvar_max * - sizeof (long int)); - struct i386_thread_state state; - register struct i386_thread_state *ts = &state; - kern_return_t r; - unsigned int count; - HURD_TLS_DESC_DECL(desc, tcb); - int sel; - - /* - * Set up i386 call frame and registers. - * Read registers first to get correct segment values. - */ - count = i386_THREAD_STATE_COUNT; - MACH_CALL(thread_get_state(thread,i386_REGS_SEGS_STATE,(thread_state_t) &state,&count),r); - - ts->eip = (int) routine; - *--top = (int) child; /* argument to function */ - *--top = 0; /* fake return address */ - ts->uesp = (int) top; /* set stack pointer */ - ts->ebp = 0; /* clear frame pointer */ - - asm ("mov %%gs, %w0" : "=q" (sel) : "0" (0)); - tcb->tcb = tcb; - tcb->self = thread; - if (__builtin_expect (sel, 0x48) & 4) /* LDT selector */ - __i386_set_ldt (thread, sel, &desc, 1); - else - __i386_set_gdt (thread, &sel, desc); - ts->gs = sel; - - MACH_CALL(thread_set_state(thread,i386_REGS_SEGS_STATE,(thread_state_t) &state,i386_THREAD_STATE_COUNT),r); -} - -#if defined(cthread_sp) -#undef cthread_sp -#endif - -int -cthread_sp(void) -{ - return (int) __thread_stack_pointer (); -} |