Ben Cheng | 5a4eb4e | 2009-09-14 16:00:41 -0700 | [diff] [blame^] | 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@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 | void opd_ext_print_stats() |
| 113 | { |
| 114 | if (is_ext_enabled() |
| 115 | && ext_feature_table[opd_ext_feat_index].handlers->ext_print_stats != NULL) { |
| 116 | printf("\n-- OProfile Extended-Feature Statistics --\n"); |
| 117 | ext_feature_table[opd_ext_feat_index].handlers->ext_print_stats(); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | |
| 122 | /** |
| 123 | * opd_sfile extended APIs |
| 124 | */ |
| 125 | void opd_ext_sfile_create(struct sfile * sf) |
| 126 | { |
| 127 | /* Creating ext sfile only if extended feature is enable*/ |
| 128 | if (is_ext_sfile_enabled() |
| 129 | && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->create != NULL) |
| 130 | ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->create(sf); |
| 131 | } |
| 132 | |
| 133 | |
| 134 | void opd_ext_sfile_dup (struct sfile * to, struct sfile * from) |
| 135 | { |
| 136 | /* Duplicate ext sfile only if extended feature is enable*/ |
| 137 | if (is_ext_sfile_enabled() |
| 138 | && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->dup != NULL) |
| 139 | ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->dup(to, from); |
| 140 | } |
| 141 | |
| 142 | |
| 143 | void opd_ext_sfile_close (struct sfile * sf) |
| 144 | { |
| 145 | /* Close ext sfile only if extended feature is enable*/ |
| 146 | if (is_ext_sfile_enabled() |
| 147 | && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->close != NULL) |
| 148 | ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->close(sf); |
| 149 | } |
| 150 | |
| 151 | |
| 152 | void opd_ext_sfile_sync(struct sfile * sf) |
| 153 | { |
| 154 | /* Sync ext sfile only if extended feature is enable*/ |
| 155 | if (is_ext_sfile_enabled() |
| 156 | && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->sync != NULL) |
| 157 | ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->sync(sf); |
| 158 | } |
| 159 | |
| 160 | |
| 161 | odb_t * opd_ext_sfile_get(struct transient const * trans, int is_cg) |
| 162 | { |
| 163 | /* Get ext sfile only if extended feature is enable*/ |
| 164 | if (is_ext_sfile_enabled() |
| 165 | && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->get != NULL) |
| 166 | return ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->get(trans, is_cg); |
| 167 | |
| 168 | return NULL; |
| 169 | } |
| 170 | |
| 171 | |
| 172 | struct opd_event * opd_ext_find_counter_event(unsigned long counter) |
| 173 | { |
| 174 | /* Only if extended feature is enable*/ |
| 175 | if (is_ext_sfile_enabled() |
| 176 | && ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->find_counter_event != NULL) |
| 177 | return ext_feature_table[opd_ext_feat_index].handlers->ext_sfile->find_counter_event(counter); |
| 178 | |
| 179 | return NULL; |
| 180 | } |
| 181 | |