1 /* Profile header for simulators using common framework. 2 Copyright (C) 1996-2014 Free Software Foundation, Inc. 3 Contributed by Cygnus Support. 4 5 This file is part of GDB, the GNU debugger. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #ifndef SIM_PROFILE_H 21 #define SIM_PROFILE_H 22 23 #ifndef WITH_PROFILE 24 Error, WITH_PROFILE not defined. 25 #endif 26 27 /* Standard profilable entities. */ 28 29 enum { 30 /* Profile insn usage. */ 31 PROFILE_INSN_IDX = 1, 32 33 /* Profile memory usage. */ 34 PROFILE_MEMORY_IDX, 35 36 /* Profile the cpu model (cycles, etc.). */ 37 PROFILE_MODEL_IDX, 38 39 /* Profile the simulator's execution cache. */ 40 PROFILE_SCACHE_IDX, 41 42 /* Profile the PC. */ 43 PROFILE_PC_IDX, 44 45 /* Profile sim-core.c stuff. */ 46 /* ??? The difference between this and PROFILE_MEMORY_IDX is ... ? */ 47 PROFILE_CORE_IDX, 48 49 /* Simulator specific profile bits begin here. */ 50 PROFILE_NEXT_IDX 51 }; 52 53 /* Maximum number of profilable entities. */ 54 #ifndef MAX_PROFILE_VALUES 55 #define MAX_PROFILE_VALUES 32 56 #endif 57 58 /* The -p option only prints useful values. It's easy to type and shouldn't 59 splat on the screen everything under the sun making nothing easy to 60 find. */ 61 #define PROFILE_USEFUL_MASK \ 62 ((1 << PROFILE_INSN_IDX) \ 63 | (1 << PROFILE_MEMORY_IDX) \ 64 | (1 << PROFILE_MODEL_IDX) \ 65 | (1 << PROFILE_CORE_IDX)) 66 67 /* Utility to set profile options. */ 68 SIM_RC set_profile_option_mask (SIM_DESC sd_, const char *name_, int mask_, 69 const char *arg_); 70 71 /* Utility to parse a --profile-<foo> option. */ 72 /* ??? On the one hand all calls could be confined to sim-profile.c, but 73 on the other hand keeping a module's profiling option with the module's 74 source is cleaner. */ 75 76 SIM_RC sim_profile_set_option (SIM_DESC sd_, const char *name_, int idx_, 77 const char *arg_); 78 79 /* Masks so WITH_PROFILE can have symbolic values. 80 The case choice here is on purpose. The lowercase parts are args to 81 --with-profile. */ 82 #define PROFILE_insn (1 << PROFILE_INSN_IDX) 83 #define PROFILE_memory (1 << PROFILE_MEMORY_IDX) 84 #define PROFILE_model (1 << PROFILE_MODEL_IDX) 85 #define PROFILE_scache (1 << PROFILE_SCACHE_IDX) 86 #define PROFILE_pc (1 << PROFILE_PC_IDX) 87 #define PROFILE_core (1 << PROFILE_CORE_IDX) 88 89 /* Preprocessor macros to simplify tests of WITH_PROFILE. */ 90 #define WITH_PROFILE_INSN_P (WITH_PROFILE & PROFILE_insn) 91 #define WITH_PROFILE_MEMORY_P (WITH_PROFILE & PROFILE_memory) 92 #define WITH_PROFILE_MODEL_P (WITH_PROFILE & PROFILE_model) 93 #define WITH_PROFILE_SCACHE_P (WITH_PROFILE & PROFILE_scache) 94 #define WITH_PROFILE_PC_P (WITH_PROFILE & PROFILE_pc) 95 #define WITH_PROFILE_CORE_P (WITH_PROFILE & PROFILE_core) 96 97 /* If MAX_TARGET_MODES isn't defined, we can't do memory profiling. 98 ??? It is intended that this is a temporary occurrence. Normally 99 MAX_TARGET_MODES is defined. */ 100 #ifndef MAX_TARGET_MODES 101 #undef WITH_PROFILE_MEMORY_P 102 #define WITH_PROFILE_MEMORY_P 0 103 #endif 104 105 /* Only build MODEL code when the target simulator has support for it */ 106 #ifndef SIM_HAVE_MODEL 107 #undef WITH_PROFILE_MODEL_P 108 #define WITH_PROFILE_MODEL_P 0 109 #endif 110 111 /* Profiling install handler. */ 112 MODULE_INSTALL_FN profile_install; 113 114 /* Output format macros. */ 115 #ifndef PROFILE_HISTOGRAM_WIDTH 116 #define PROFILE_HISTOGRAM_WIDTH 40 117 #endif 118 #ifndef PROFILE_LABEL_WIDTH 119 #define PROFILE_LABEL_WIDTH 32 120 #endif 121 122 /* Callbacks for internal profile_info. 123 The callbacks may be NULL meaning there isn't one. 124 Note that results are indented two spaces to distinguish them from 125 section titles. 126 If non-NULL, PROFILE_CALLBACK is called to print extra non-cpu related data. 127 If non-NULL, PROFILE_CPU_CALLBACK is called to print extra cpu related data. 128 */ 129 130 typedef void (PROFILE_INFO_CALLBACK_FN) (SIM_DESC, int); 131 struct _sim_cpu; /* forward reference */ 132 typedef void (PROFILE_INFO_CPU_CALLBACK_FN) (struct _sim_cpu *cpu, int verbose); 133 134 135 /* Struct containing most profiling data. 136 It doesn't contain all profiling data because for example scache data 137 is kept with the rest of scache support. */ 138 139 typedef struct { 140 /* Global summary of all the current profiling options. */ 141 char profile_any_p; 142 143 /* Boolean array of specified profiling flags. */ 144 char profile_flags[MAX_PROFILE_VALUES]; 145 #define PROFILE_FLAGS(p) ((p)->profile_flags) 146 147 /* The total insn count is tracked separately. 148 It is always computed, regardless of insn profiling. */ 149 unsigned long total_insn_count; 150 #define PROFILE_TOTAL_INSN_COUNT(p) ((p)->total_insn_count) 151 152 /* CPU frequency. Always accepted, regardless of profiling options. */ 153 unsigned long cpu_freq; 154 #define PROFILE_CPU_FREQ(p) ((p)->cpu_freq) 155 156 #if WITH_PROFILE_INSN_P 157 unsigned int *insn_count; 158 #define PROFILE_INSN_COUNT(p) ((p)->insn_count) 159 #endif 160 161 #if WITH_PROFILE_MEMORY_P 162 unsigned int read_count[MAX_TARGET_MODES]; 163 #define PROFILE_READ_COUNT(p) ((p)->read_count) 164 unsigned int write_count[MAX_TARGET_MODES]; 165 #define PROFILE_WRITE_COUNT(p) ((p)->write_count) 166 #endif 167 168 #if WITH_PROFILE_CORE_P 169 /* Count read/write/exec accesses separatly. */ 170 unsigned int core_count[nr_maps]; 171 #define PROFILE_CORE_COUNT(p) ((p)->core_count) 172 #endif 173 174 #if WITH_PROFILE_MODEL_P 175 /* ??? Quick hack until more elaborate scheme is finished. */ 176 /* Total cycle count, including stalls. */ 177 unsigned long total_cycles; 178 #define PROFILE_MODEL_TOTAL_CYCLES(p) ((p)->total_cycles) 179 /* Stalls due to branches. */ 180 unsigned long cti_stall_cycles; 181 #define PROFILE_MODEL_CTI_STALL_CYCLES(p) ((p)->cti_stall_cycles) 182 unsigned long load_stall_cycles; 183 #define PROFILE_MODEL_LOAD_STALL_CYCLES(p) ((p)->load_stall_cycles) 184 /* Number of cycles the current instruction took. */ 185 unsigned long cur_insn_cycles; 186 #define PROFILE_MODEL_CUR_INSN_CYCLES(p) ((p)->cur_insn_cycles) 187 188 /* Taken and not-taken branches (and other cti's). */ 189 unsigned long taken_count, untaken_count; 190 #define PROFILE_MODEL_TAKEN_COUNT(p) ((p)->taken_count) 191 #define PROFILE_MODEL_UNTAKEN_COUNT(p) ((p)->untaken_count) 192 #endif 193 194 #if WITH_PROFILE_PC_P 195 /* PC profiling attempts to determine function usage by sampling the PC 196 every so many instructions. */ 197 unsigned int profile_pc_freq; 198 #define PROFILE_PC_FREQ(p) ((p)->profile_pc_freq) 199 unsigned int profile_pc_nr_buckets; 200 #define PROFILE_PC_NR_BUCKETS(p) ((p)->profile_pc_nr_buckets) 201 address_word profile_pc_start; 202 #define PROFILE_PC_START(p) ((p)->profile_pc_start) 203 address_word profile_pc_end; 204 #define PROFILE_PC_END(p) ((p)->profile_pc_end) 205 unsigned profile_pc_shift; 206 #define PROFILE_PC_SHIFT(p) ((p)->profile_pc_shift) 207 #define PROFILE_PC_BUCKET_SIZE(p) (PROFILE_PC_SHIFT (p) ? (1 << PROFILE_PC_SHIFT (p)) : 0) 208 unsigned *profile_pc_count; 209 #define PROFILE_PC_COUNT(p) ((p)->profile_pc_count) 210 sim_event *profile_pc_event; 211 #define PROFILE_PC_EVENT(p) ((p)->profile_pc_event) 212 #endif 213 214 /* Profile output goes to this or stderr if NULL. 215 We can't store `stderr' here as stderr goes through a callback. */ 216 FILE *profile_file; 217 #define PROFILE_FILE(p) ((p)->profile_file) 218 219 /* When reporting a profile summary, hook to include per-processor 220 target specific profile information */ 221 PROFILE_INFO_CPU_CALLBACK_FN *info_cpu_callback; 222 #define PROFILE_INFO_CPU_CALLBACK(p) ((p)->info_cpu_callback) 223 224 /* When reporting a profile summary, hook to include common target 225 specific profile information */ 226 PROFILE_INFO_CALLBACK_FN *info_callback; 227 #define STATE_PROFILE_INFO_CALLBACK(sd) \ 228 (CPU_PROFILE_DATA (STATE_CPU (sd, 0))->info_callback) 229 230 /* Profile range. 231 ??? Not all cpu's support this. */ 232 ADDR_RANGE range; 233 #define PROFILE_RANGE(p) (& (p)->range) 234 } PROFILE_DATA; 235 236 /* Predicates. */ 237 238 #define CPU_PROFILE_FLAGS(cpu) PROFILE_FLAGS (CPU_PROFILE_DATA (cpu)) 239 240 /* Return non-zero if tracing of IDX is enabled for CPU. */ 241 #define PROFILE_P(cpu,idx) \ 242 ((WITH_PROFILE & (1 << (idx))) != 0 \ 243 && CPU_PROFILE_FLAGS (cpu)[idx] != 0) 244 245 /* Non-zero if --profile-<xxxx> was specified for CPU. */ 246 #define PROFILE_ANY_P(cpu) ((WITH_PROFILE) && (CPU_PROFILE_DATA (cpu)->profile_any_p)) 247 #define PROFILE_INSN_P(cpu) PROFILE_P (cpu, PROFILE_INSN_IDX) 248 #define PROFILE_MEMORY_P(cpu) PROFILE_P (cpu, PROFILE_MEMORY_IDX) 249 #define PROFILE_MODEL_P(cpu) PROFILE_P (cpu, PROFILE_MODEL_IDX) 250 #define PROFILE_SCACHE_P(cpu) PROFILE_P (cpu, PROFILE_SCACHE_IDX) 251 #define PROFILE_PC_P(cpu) PROFILE_P (cpu, PROFILE_PC_IDX) 252 #define PROFILE_CORE_P(cpu) PROFILE_P (cpu, PROFILE_CORE_IDX) 253 254 /* Usage macros. */ 255 256 #if WITH_PROFILE_INSN_P 257 #define PROFILE_COUNT_INSN(cpu, pc, insn_num) \ 258 do { \ 259 if (PROFILE_INSN_P (cpu)) \ 260 ++ PROFILE_INSN_COUNT (CPU_PROFILE_DATA (cpu)) [insn_num]; \ 261 } while (0) 262 #else 263 #define PROFILE_COUNT_INSN(cpu, pc, insn_num) 264 #endif /* ! insn */ 265 266 #if WITH_PROFILE_MEMORY_P 267 #define PROFILE_COUNT_READ(cpu, addr, mode_num) \ 268 do { \ 269 if (PROFILE_MEMORY_P (cpu)) \ 270 ++ PROFILE_READ_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \ 271 } while (0) 272 #define PROFILE_COUNT_WRITE(cpu, addr, mode_num) \ 273 do { \ 274 if (PROFILE_MEMORY_P (cpu)) \ 275 ++ PROFILE_WRITE_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \ 276 } while (0) 277 #else 278 #define PROFILE_COUNT_READ(cpu, addr, mode_num) 279 #define PROFILE_COUNT_WRITE(cpu, addr, mode_num) 280 #endif /* ! memory */ 281 282 #if WITH_PROFILE_CORE_P 283 #define PROFILE_COUNT_CORE(cpu, addr, size, map) \ 284 do { \ 285 if (PROFILE_CORE_P (cpu)) \ 286 PROFILE_CORE_COUNT (CPU_PROFILE_DATA (cpu)) [map] += 1; \ 287 } while (0) 288 #else 289 #define PROFILE_COUNT_CORE(cpu, addr, size, map) 290 #endif /* ! core */ 291 292 #if WITH_PROFILE_MODEL_P 293 #define PROFILE_BRANCH_TAKEN(cpu) \ 294 do { \ 295 if (PROFILE_MODEL_P (cpu)) \ 296 ++ PROFILE_MODEL_TAKEN_COUNT (CPU_PROFILE_DATA (cpu)); \ 297 } while (0) 298 #define PROFILE_BRANCH_UNTAKEN(cpu) \ 299 do { \ 300 if (PROFILE_MODEL_P (cpu)) \ 301 ++ PROFILE_MODEL_UNTAKEN_COUNT (CPU_PROFILE_DATA (cpu)); \ 302 } while (0) 303 #else 304 #define PROFILE_BRANCH_TAKEN(cpu) 305 #define PROFILE_BRANCH_UNTAKEN(cpu) 306 #endif /* ! model */ 307 308 /* Misc. utilities. */ 309 310 extern void sim_profile_print_bar (SIM_DESC, sim_cpu *, unsigned int, unsigned int, unsigned int); 311 312 #endif /* SIM_PROFILE_H */ 313