| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * Hypervisor Software File: xref.c |
| 5 | * |
| 6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 7 | * |
| 8 | * - Do no alter or remove copyright notices |
| 9 | * |
| 10 | * - Redistribution and use of this software in source and binary forms, with |
| 11 | * or without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistribution of source code must retain the above copyright notice, |
| 15 | * this list of conditions and the following disclaimer. |
| 16 | * |
| 17 | * - Redistribution in binary form must reproduce the above copyright notice, |
| 18 | * this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * |
| 21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 22 | * may be used to endorse or promote products derived from this software |
| 23 | * without specific prior written permission. |
| 24 | * |
| 25 | * This software is provided "AS IS," without a warranty of any kind. |
| 26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
| 29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR |
| 30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| 31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN |
| 32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
| 33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
| 34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
| 35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF |
| 36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 37 | * |
| 38 | * You acknowledge that this software is not designed, licensed or |
| 39 | * intended for use in the design, construction, operation or maintenance of |
| 40 | * any nuclear facility. |
| 41 | * |
| 42 | * ========== Copyright Header End ============================================ |
| 43 | */ |
| 44 | /* |
| 45 | * @(#)xref.c 1.1 02/05/02 |
| 46 | * Copyright 2001-2002 Sun Microsystems, Inc. All Rights Reserved |
| 47 | * Use is subject to license terms. |
| 48 | */ |
| 49 | #include <stdio.h> |
| 50 | #include <stdlib.h> |
| 51 | #include <unistd.h> |
| 52 | #include <string.h> |
| 53 | |
| 54 | #include "xref.h" |
| 55 | |
| 56 | xref_state_t * |
| 57 | xref_create_state(void) |
| 58 | { |
| 59 | xref_state_t *new; |
| 60 | new = malloc(sizeof (xref_state_t)); |
| 61 | memset(new, 0, sizeof (xref_state_t)); |
| 62 | return (new); |
| 63 | } |
| 64 | |
| 65 | xref_file_t * |
| 66 | xref_create_file_reference(char *name) |
| 67 | { |
| 68 | size_t bytes = 128 * sizeof (xref_t *); |
| 69 | xref_file_t *newf; |
| 70 | |
| 71 | newf = malloc(sizeof (xref_file_t)); |
| 72 | newf->name = strdup(name); |
| 73 | newf->defs = malloc(bytes); |
| 74 | memset(newf->defs, 0, bytes); |
| 75 | return (newf); |
| 76 | } |
| 77 | |
| 78 | void |
| 79 | xref_add_definition(xref_t **where, xref_t *new) |
| 80 | { |
| 81 | unsigned int index; |
| 82 | index = new->name[0]; |
| 83 | |
| 84 | new->next_def = where[index]; |
| 85 | where[index] = new; |
| 86 | } |
| 87 | |
| 88 | /* |
| 89 | * when a new routine is defined call this.. |
| 90 | */ |
| 91 | xref_t * |
| 92 | xref_create_reference(char *name, int line, xref_state_t *state) |
| 93 | { |
| 94 | xref_t *new; |
| 95 | |
| 96 | new = malloc(sizeof (xref_t)); |
| 97 | new->name = strdup(name); |
| 98 | new->file = state->current_file; |
| 99 | new->linenum = line; |
| 100 | new->flags = 0; |
| 101 | new->calls.size = MIN_REF; |
| 102 | new->calls.insert = 0; |
| 103 | new->calls.ptr = malloc(sizeof (xref_t *) * new->calls.size); |
| 104 | new->called_by.size = MIN_REF; |
| 105 | new->called_by.insert = 0; |
| 106 | new->called_by.ptr = malloc(sizeof (xref_t *) * new->called_by.size); |
| 107 | new->next_def = NULL; |
| 108 | |
| 109 | if (state->current_file == NULL) { |
| 110 | fprintf(stderr, "%s:%d: Current file == NULL!!\n", |
| 111 | __FILE__, __LINE__); |
| 112 | } |
| 113 | xref_add_definition(state->current_file->defs, new); |
| 114 | xref_add_definition(state->all_refs, new); |
| 115 | return (new); |
| 116 | } |
| 117 | |
| 118 | void |
| 119 | xref_add_reference_to_buffer(ref_t *where, xref_t *fn) |
| 120 | { |
| 121 | xref_t **newbuf, **oldbuf; |
| 122 | |
| 123 | if (where->insert < where->size) { |
| 124 | where->ptr[where->insert++] = fn; |
| 125 | } else { |
| 126 | int bytes; |
| 127 | |
| 128 | /* |
| 129 | * we need to grow the reference buffer. |
| 130 | */ |
| 131 | bytes = (where->size + MIN_REF) * sizeof (xref_t *); |
| 132 | newbuf = malloc(bytes); |
| 133 | memset(newbuf, 0, bytes); |
| 134 | oldbuf = where->ptr; |
| 135 | memcpy(newbuf, oldbuf, (where->size*sizeof (xref_t *))); |
| 136 | free(oldbuf); |
| 137 | where->ptr = newbuf; |
| 138 | where->size += MIN_REF; |
| 139 | where->ptr[where->insert++] = fn; |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | void |
| 144 | xref_free_state(xref_state_t *state) |
| 145 | { |
| 146 | } |