usr/src/lib/efcode/engine/init.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  * Copyright 2007 Sun Microsystems, Inc.   All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31
  32 #include <fcode/private.h>
  33 #include <fcode/log.h>
  34
  35 fcode_env_t *initial_env = 0;
  36 int dict_size = 0x4000000;      /* 64Mb, hopefully big enough... */
  37 int stack_size = 0x200;
  38
  39 void *
  40 safe_malloc(size_t n, char *f, int l)
  41 {
  42         void *p;
  43
  44         p = malloc((size_t)n);
  45         if (p) {
  46                 memset(p, 0, (size_t)n);
  47         } else
  48                 log_message(MSG_ERROR, "%s:%d:Malloc(%llx) failed\n", f, l,
  49                     (uint64_t)n);
  50         return (p);
  51 }
  52
  53 void *
  54 safe_realloc(void *p, size_t n, char *f, int l)
  55 {
  56         void *newp;
  57
  58         if ((newp = safe_malloc(n, f, l)) == NULL) {
  59                 log_message(MSG_ERROR, "%s:%d:realloc(%p, %x) failed\n", f, l,
  60                     p, n);
  61                 safe_free(p, f, l);
  62                 return (NULL);
  63         }
  64         if (p) {
  65                 memcpy(newp, p, n);
  66                 safe_free(p, f, l);
  67         }
  68         return (newp);
  69 }
  70
  71 void
  72 safe_free(void *p, char *f, int l)
  73 {
  74         if (p) {
  75                 free(p);
  76         }
  77 }
  78
  79 char *
  80 safe_strdup(char *s, char *f, int l)
  81 {
  82         char *p = strdup(s);
  83
  84         return (p);
  85 }
  86
  87 #pragma init(_init)
  88
  89 static void
  90 _init(void)
  91 {
  92         int i;
  93         acf_t f_error_addr;
  94         fcode_env_t *env;
  95
  96         NOTICE;
  97
  98         fcode_impl_count = 0;
  99         env = MALLOC(sizeof (fcode_env_t));
 100         env->table = MALLOC((MAX_FCODE + 1) * sizeof (fcode_token));
 101         env->base = MALLOC(dict_size);
 102         env->here = env->base;
 103         env->ds = env->ds0 = MALLOC(stack_size * sizeof (fstack_t));
 104         env->rs = env->rs0 = MALLOC(stack_size * sizeof (fstack_t));
 105         env->order = MALLOC(MAX_ORDER * sizeof (token_t));
 106         env->input = MALLOC(sizeof (input_typ));
 107         env->num_base = 0x10;
 108
 109         /* Setup the initial forth environment */
 110         do_forth(env);
 111         do_definitions(env);
 112         install_handlers(env);
 113
 114         initial_env = env;
 115
 116         /*
 117          * Need to define this early because it is the default for
 118          * all unimpl, FCODE functions
 119          */
 120         P1275(0x0fc, IMMEDIATE, "ferror",               f_error);
 121         f_error_addr = LINK_TO_ACF(env->lastlink);
 122         for (i = 0; i <= MAX_FCODE; i++) {
 123                 DEBUGF(ANY, env->table[i].usage = 0);
 124                 SET_TOKEN(i, IMMEDIATE, "ferror", f_error_addr);
 125         }
 126         fcode_impl_count = 0;
 127 }