usr/src/lib/libc/i386/genassym.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #include <stdio.h>
  28 #include <stddef.h>
  29 #include <signal.h>
  30 #include <ucontext.h>
  31 #include <sys/stack.h>
  32 #include <sys/synch.h>
  33 #include <sys/synch32.h>
  34 #include "thr_uberdata.h"
  35
  36 /*
  37  * This file generates two values used by _lwp_mutex_unlock.s:
  38  *      a) the byte offset (in lwp_mutex_t) of the word containing the lock byte
  39  *      b) a mask to extract the waiter field from the word containing it
  40  * It also generates offsets into the ucontext_t structure, needed by the
  41  * getcontext() function, which is written in assembly, as well as offsets
  42  * into the ulwp_t (thread) structure needed by certain assembler functions.
  43  */
  44
  45 int
  46 main(void)
  47 {
  48         (void) printf("#define\tMUTEX_LOCK_WORD\t0x%x\n",
  49             offsetof(lwp_mutex_t, mutex_lockword));
  50         (void) printf("#define\tWAITER_MASK\t0x00ff0000\n");
  51
  52         (void) printf("#define\tSIG_SETMASK\t0x%x\n", SIG_SETMASK);
  53         (void) printf("#define\tMASKSET0\t0x%x\n", MASKSET0);
  54         (void) printf("#define\tMASKSET1\t0x%x\n", MASKSET1);
  55         (void) printf("#define\tMASKSET2\t0x%x\n", MASKSET2);
  56         (void) printf("#define\tMASKSET3\t0x%x\n", MASKSET3);
  57         (void) printf("#define\tSIGSEGV\t0x%x\n", SIGSEGV);
  58
  59         (void) printf("#define\tEIP_OFF\t0x%x\n", EIP * 4);
  60         (void) printf("#define\tEAX_OFF\t0x%x\n", EAX * 4);
  61         (void) printf("#define\tUESP_OFF\t0x%x\n", UESP * 4);
  62
  63         return (0);
  64 }