1 /** 2 * @file opd_extended.c 3 * OProfile Extended Feature 4 * 5 * @remark Copyright 2007-2009 OProfile authors 6 * @remark Read the file COPYING 7 * 8 * @author Suravee Suthikulpanit <suravee.suthikulpanit (at) amd.com> 9 * Copyright (c) 2009 Advanced Micro Devices, Inc. 10 */ 11 12 #include "opd_extended.h" 13 #include "op_string.h" 14 15 #include <string.h> 16 #include <stdio.h> 17 18 /* This global variable is >= 0 19 * if extended feature is enabled */ 20 static int opd_ext_feat_index; 21 22 extern struct opd_ext_handlers ibs_handlers; 23 24 /** 25 * OProfile Extended Feature Table 26 * 27 * This table contains a list of extended features. 28 */ 29 static struct opd_ext_feature ext_feature_table[] = { 30 {"ibs", &ibs_handlers }, 31 { NULL, NULL } 32 }; 33 34 35 static int get_index_for_feature(char const * name) 36 { 37 int ret = -1; 38 unsigned int i; 39 40 if(!name) 41 return ret; 42 43 for (i = 0 ; ext_feature_table[i].feature != NULL ; i++ ) { 44 if(!strncmp(name, ext_feature_table[i].feature, 45 strlen(ext_feature_table[i].feature))) { 46 ret = i; 47 break; 48 } 49 } 50 51 return ret; 52 } 53 54 55 static inline int is_ext_enabled() 56 { 57 if (opd_ext_feat_index >= 0 58 && ext_feature_table[opd_ext_feat_index].handlers != NULL) 59 return 1; 60 else 61 return 0; 62 } 63 64 65 static inline int is_ext_sfile_enabled() 66 { 67 if (opd_ext_feat_index >= 0 68 && ext_feature_table[opd_ext_feat_index].handlers != NULL 69 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile != NULL) 70 return 1; 71 else 72 return 0; 73 } 74 75 76 /** 77 * Param "value" is the input from CML option with the format: 78 * 79 * <feature name>:<param1>:<param2>:<param3>:..... 80 * 81 * where param1,2.3,..n are optional. 82 */ 83 int opd_ext_initialize(char const * value) 84 { 85 int ret = EXIT_FAILURE; 86 char * tmp = NULL, * name = NULL, * args = NULL; 87 88 if(!value) { 89 opd_ext_feat_index = -1; 90 return 0; 91 } 92 93 tmp = op_xstrndup(value, strlen(value)); 94 95 /* Parse feature name*/ 96 if((name = strtok_r(tmp, ":", &args)) == NULL) 97 goto err_out; 98 99 if((opd_ext_feat_index = get_index_for_feature(name)) < 0) 100 goto err_out; 101 102 ret = ext_feature_table[opd_ext_feat_index].handlers->ext_init(args); 103 104 return ret; 105 106 err_out: 107 fprintf(stderr,"opd_ext_initialize: Invalid extended feature option: %s\n", value); 108 return ret; 109 } 110 111 112 int opd_ext_deinitialize() 113 { 114 int ret = EXIT_FAILURE; 115 116 if(opd_ext_feat_index == -1) { 117 return 0; 118 } 119 120 ret = ext_feature_table[opd_ext_feat_index].handlers->ext_deinit(); 121 122 return ret; 123 } 124 125 126 void opd_ext_print_stats() 127 { 128 if (is_ext_enabled() 129 && ext_feature_table[opd_ext_feat_index].handlers->ext_print_stats != NULL) { 130 printf("\n-- OProfile Extended-Feature Statistics --\n"); 131 ext_feature_table[opd_ext_feat_index].handlers->ext_print_stats(); 132 } 133 } 134 135 136 /** 137 * opd_sfile extended APIs 138 */ 139 void opd_ext_sfile_create(struct sfile * sf) 140 { 141 /* Creating ext sfile only if extended feature is enable*/ 142 if (is_ext_sfile_enabled() 143 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->create != NULL) 144 ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->create(sf); 145 } 146 147 148 void opd_ext_sfile_dup (struct sfile * to, struct sfile * from) 149 { 150 /* Duplicate ext sfile only if extended feature is enable*/ 151 if (is_ext_sfile_enabled() 152 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->dup != NULL) 153 ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->dup(to, from); 154 } 155 156 157 void opd_ext_sfile_close (struct sfile * sf) 158 { 159 /* Close ext sfile only if extended feature is enable*/ 160 if (is_ext_sfile_enabled() 161 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->close != NULL) 162 ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->close(sf); 163 } 164 165 166 void opd_ext_sfile_sync(struct sfile * sf) 167 { 168 /* Sync ext sfile only if extended feature is enable*/ 169 if (is_ext_sfile_enabled() 170 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->sync != NULL) 171 ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->sync(sf); 172 } 173 174 175 odb_t * opd_ext_sfile_get(struct transient const * trans, int is_cg) 176 { 177 /* Get ext sfile only if extended feature is enable*/ 178 if (is_ext_sfile_enabled() 179 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->get != NULL) 180 return ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->get(trans, is_cg); 181 182 return NULL; 183 } 184 185 186 struct opd_event * opd_ext_find_counter_event(unsigned long counter) 187 { 188 /* Only if extended feature is enable*/ 189 if (is_ext_sfile_enabled() 190 && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->find_counter_event != NULL) 191 return ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->find_counter_event(counter); 192 193 return NULL; 194 } 195 196
