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[deliverable/binutils-gdb.git] / sim / common / sim-profile.h
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c906108c
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1/* Profile header for simulators using common framework.
2 Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4
5This file is part of GDB, the GNU debugger.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License along
18with this program; if not, write to the Free Software Foundation, Inc.,
1959 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21#ifndef SIM_PROFILE_H
22#define SIM_PROFILE_H
23
24#ifndef WITH_PROFILE
25Error, WITH_PROFILE not defined.
26#endif
27
28/* Standard profilable entities. */
29
30enum {
31 /* Profile insn usage. */
32 PROFILE_INSN_IDX = 1,
33
34 /* Profile memory usage. */
35 PROFILE_MEMORY_IDX,
36
37 /* Profile the cpu model (cycles, etc.). */
38 PROFILE_MODEL_IDX,
39
40 /* Profile the simulator's execution cache. */
41 PROFILE_SCACHE_IDX,
42
43 /* Profile the PC. */
44 PROFILE_PC_IDX,
45
46 /* Profile sim-core.c stuff. */
47 /* ??? The difference between this and PROFILE_MEMORY_IDX is ... ? */
48 PROFILE_CORE_IDX,
49
50 /* Simulator specific profile bits begin here. */
51 PROFILE_NEXT_IDX
52};
53
54/* Maximum number of profilable entities. */
55#ifndef MAX_PROFILE_VALUES
56#define MAX_PROFILE_VALUES 32
57#endif
58
59/* The -p option only prints useful values. It's easy to type and shouldn't
60 splat on the screen everything under the sun making nothing easy to
61 find. */
62#define PROFILE_USEFUL_MASK \
63((1 << PROFILE_INSN_IDX) \
64 | (1 << PROFILE_MEMORY_IDX) \
65 | (1 << PROFILE_MODEL_IDX) \
66 | (1 << PROFILE_CORE_IDX))
67
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68/* Utility to set profile options. */
69SIM_RC set_profile_option_mask (SIM_DESC sd_, const char *name_, int mask_,
70 const char *arg_);
71
c906108c
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72/* Utility to parse a --profile-<foo> option. */
73/* ??? On the one hand all calls could be confined to sim-profile.c, but
74 on the other hand keeping a module's profiling option with the module's
75 source is cleaner. */
76
77SIM_RC sim_profile_set_option (SIM_DESC sd_, const char *name_, int idx_,
78 const char *arg_);
79\f
80/* Masks so WITH_PROFILE can have symbolic values.
81 The case choice here is on purpose. The lowercase parts are args to
82 --with-profile. */
83#define PROFILE_insn (1 << PROFILE_INSN_IDX)
84#define PROFILE_memory (1 << PROFILE_MEMORY_IDX)
85#define PROFILE_model (1 << PROFILE_MODEL_IDX)
86#define PROFILE_scache (1 << PROFILE_SCACHE_IDX)
87#define PROFILE_pc (1 << PROFILE_PC_IDX)
88#define PROFILE_core (1 << PROFILE_CORE_IDX)
89
90/* Preprocessor macros to simplify tests of WITH_PROFILE. */
91#define WITH_PROFILE_INSN_P (WITH_PROFILE & PROFILE_insn)
92#define WITH_PROFILE_MEMORY_P (WITH_PROFILE & PROFILE_memory)
93#define WITH_PROFILE_MODEL_P (WITH_PROFILE & PROFILE_model)
94#define WITH_PROFILE_SCACHE_P (WITH_PROFILE & PROFILE_scache)
95#define WITH_PROFILE_PC_P (WITH_PROFILE & PROFILE_pc)
96#define WITH_PROFILE_CORE_P (WITH_PROFILE & PROFILE_core)
97
98/* If MAX_TARGET_MODES isn't defined, we can't do memory profiling.
99 ??? It is intended that this is a temporary occurence. Normally
100 MAX_TARGET_MODES is defined. */
101#ifndef MAX_TARGET_MODES
102#undef WITH_PROFILE_MEMORY_P
103#define WITH_PROFILE_MEMORY_P 0
104#endif
105
106/* Only build MODEL code when the target simulator has support for it */
107#ifndef SIM_HAVE_MODEL
108#undef WITH_PROFILE_MODEL_P
109#define WITH_PROFILE_MODEL_P 0
110#endif
111
112/* Profiling install handler. */
113MODULE_INSTALL_FN profile_install;
114
115/* Output format macros. */
116#ifndef PROFILE_HISTOGRAM_WIDTH
117#define PROFILE_HISTOGRAM_WIDTH 40
118#endif
119#ifndef PROFILE_LABEL_WIDTH
120#define PROFILE_LABEL_WIDTH 32
121#endif
122\f
123/* Callbacks for internal profile_info.
124 The callbacks may be NULL meaning there isn't one.
125 Note that results are indented two spaces to distinguish them from
126 section titles.
127 If non-NULL, PROFILE_CALLBACK is called to print extra non-cpu related data.
128 If non-NULL, PROFILE_CPU_CALLBACK is called to print extra cpu related data.
129 */
130
131typedef void (PROFILE_INFO_CALLBACK_FN) (SIM_DESC, int);
132struct _sim_cpu; /* forward reference */
133typedef void (PROFILE_INFO_CPU_CALLBACK_FN) (struct _sim_cpu *cpu, int verbose);
134
135\f
136/* Struct containing most profiling data.
137 It doesn't contain all profiling data because for example scache data
138 is kept with the rest of scache support. */
139
140typedef struct {
141 /* Global summary of all the current profiling options. */
142 char profile_any_p;
143
144 /* Boolean array of specified profiling flags. */
145 char profile_flags[MAX_PROFILE_VALUES];
146#define PROFILE_FLAGS(p) ((p)->profile_flags)
147
148 /* The total insn count is tracked separately.
149 It is always computed, regardless of insn profiling. */
150 unsigned long total_insn_count;
151#define PROFILE_TOTAL_INSN_COUNT(p) ((p)->total_insn_count)
152
153#if WITH_PROFILE_INSN_P
154 unsigned int *insn_count;
155#define PROFILE_INSN_COUNT(p) ((p)->insn_count)
156#endif
157
158#if WITH_PROFILE_MEMORY_P
159 unsigned int read_count[MAX_TARGET_MODES];
160#define PROFILE_READ_COUNT(p) ((p)->read_count)
161 unsigned int write_count[MAX_TARGET_MODES];
162#define PROFILE_WRITE_COUNT(p) ((p)->write_count)
163#endif
164
165#if WITH_PROFILE_CORE_P
166 /* Count read/write/exec accesses separatly. */
167 unsigned int core_count[nr_maps];
168#define PROFILE_CORE_COUNT(p) ((p)->core_count)
169#endif
170
171#if WITH_PROFILE_MODEL_P
172 /* ??? Quick hack until more elaborate scheme is finished. */
173 /* Total cycle count, including stalls. */
174 unsigned long total_cycles;
175#define PROFILE_MODEL_TOTAL_CYCLES(p) ((p)->total_cycles)
176 /* Stalls due to branches. */
177 unsigned long cti_stall_cycles;
178#define PROFILE_MODEL_CTI_STALL_CYCLES(p) ((p)->cti_stall_cycles)
179 unsigned long load_stall_cycles;
180#define PROFILE_MODEL_LOAD_STALL_CYCLES(p) ((p)->load_stall_cycles)
181 /* Number of cycles the current instruction took. */
182 unsigned long cur_insn_cycles;
183#define PROFILE_MODEL_CUR_INSN_CYCLES(p) ((p)->cur_insn_cycles)
184
185 /* Taken and not-taken branches (and other cti's). */
186 unsigned long taken_count, untaken_count;
187#define PROFILE_MODEL_TAKEN_COUNT(p) ((p)->taken_count)
188#define PROFILE_MODEL_UNTAKEN_COUNT(p) ((p)->untaken_count)
189#endif
190
191#if WITH_PROFILE_PC_P
192 /* PC profiling attempts to determine function usage by sampling the PC
193 every so many instructions. */
194 unsigned int profile_pc_freq;
195#define PROFILE_PC_FREQ(p) ((p)->profile_pc_freq)
196 unsigned int profile_pc_nr_buckets;
197#define PROFILE_PC_NR_BUCKETS(p) ((p)->profile_pc_nr_buckets)
198 address_word profile_pc_start;
199#define PROFILE_PC_START(p) ((p)->profile_pc_start)
200 address_word profile_pc_end;
201#define PROFILE_PC_END(p) ((p)->profile_pc_end)
202 unsigned profile_pc_shift;
203#define PROFILE_PC_SHIFT(p) ((p)->profile_pc_shift)
204#define PROFILE_PC_BUCKET_SIZE(p) (PROFILE_PC_SHIFT (p) ? (1 << PROFILE_PC_SHIFT (p)) : 0)
205 unsigned *profile_pc_count;
206#define PROFILE_PC_COUNT(p) ((p)->profile_pc_count)
207 sim_event *profile_pc_event;
208#define PROFILE_PC_EVENT(p) ((p)->profile_pc_event)
209#endif
210
211 /* Profile output goes to this or stderr if NULL.
212 We can't store `stderr' here as stderr goes through a callback. */
213 FILE *profile_file;
214#define PROFILE_FILE(p) ((p)->profile_file)
215
216 /* When reporting a profile summary, hook to include per-processor
217 target specific profile information */
218 PROFILE_INFO_CPU_CALLBACK_FN *info_cpu_callback;
219#define PROFILE_INFO_CPU_CALLBACK(p) ((p)->info_cpu_callback)
220
221 /* When reporting a profile summary, hook to include common target
222 specific profile information */
223 PROFILE_INFO_CALLBACK_FN *info_callback;
224#define STATE_PROFILE_INFO_CALLBACK(sd) \
225(CPU_PROFILE_DATA (STATE_CPU (sd, 0))->info_callback)
226
227 /* Profile range.
228 ??? Not all cpu's support this. */
229 ADDR_RANGE range;
230#define PROFILE_RANGE(p) (& (p)->range)
231} PROFILE_DATA;
232\f
233/* Predicates. */
234
235#define CPU_PROFILE_FLAGS(cpu) PROFILE_FLAGS (CPU_PROFILE_DATA (cpu))
236
237/* Return non-zero if tracing of IDX is enabled for CPU. */
238#define PROFILE_P(cpu,idx) \
239((WITH_PROFILE & (1 << (idx))) != 0 \
240 && CPU_PROFILE_FLAGS (cpu)[idx] != 0)
241
242/* Non-zero if --profile-<xxxx> was specified for CPU. */
243#define PROFILE_ANY_P(cpu) ((WITH_PROFILE) && (CPU_PROFILE_DATA (cpu)->profile_any_p))
244#define PROFILE_INSN_P(cpu) PROFILE_P (cpu, PROFILE_INSN_IDX)
245#define PROFILE_MEMORY_P(cpu) PROFILE_P (cpu, PROFILE_MEMORY_IDX)
246#define PROFILE_MODEL_P(cpu) PROFILE_P (cpu, PROFILE_MODEL_IDX)
247#define PROFILE_SCACHE_P(cpu) PROFILE_P (cpu, PROFILE_SCACHE_IDX)
248#define PROFILE_PC_P(cpu) PROFILE_P (cpu, PROFILE_PC_IDX)
249#define PROFILE_CORE_P(cpu) PROFILE_P (cpu, PROFILE_CORE_IDX)
250\f
251/* Usage macros. */
252
253#if WITH_PROFILE_INSN_P
254#define PROFILE_COUNT_INSN(cpu, pc, insn_num) \
255do { \
256 if (PROFILE_INSN_P (cpu)) \
257 ++ PROFILE_INSN_COUNT (CPU_PROFILE_DATA (cpu)) [insn_num]; \
258} while (0)
259#else
260#define PROFILE_COUNT_INSN(cpu, pc, insn_num)
261#endif /* ! insn */
262
263#if WITH_PROFILE_MEMORY_P
264#define PROFILE_COUNT_READ(cpu, addr, mode_num) \
265do { \
266 if (PROFILE_MEMORY_P (cpu)) \
267 ++ PROFILE_READ_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \
268} while (0)
269#define PROFILE_COUNT_WRITE(cpu, addr, mode_num) \
270do { \
271 if (PROFILE_MEMORY_P (cpu)) \
272 ++ PROFILE_WRITE_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \
273} while (0)
274#else
275#define PROFILE_COUNT_READ(cpu, addr, mode_num)
276#define PROFILE_COUNT_WRITE(cpu, addr, mode_num)
277#endif /* ! memory */
278
279#if WITH_PROFILE_CORE_P
280#define PROFILE_COUNT_CORE(cpu, addr, size, map) \
281do { \
282 if (PROFILE_CORE_P (cpu)) \
283 PROFILE_CORE_COUNT (CPU_PROFILE_DATA (cpu)) [map] += 1; \
284} while (0)
285#else
286#define PROFILE_COUNT_CORE(cpu, addr, size, map)
287#endif /* ! core */
288
289/* Misc. utilities. */
290
291extern void sim_profile_print_bar (SIM_DESC, unsigned int, unsigned int, unsigned int);
292
293#endif /* SIM_PROFILE_H */
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