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/* Profile header for simulators using common framework.
Copyright (C) 1996-2021 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef SIM_PROFILE_H
#define SIM_PROFILE_H
#ifndef WITH_PROFILE
#error "WITH_PROFILE not defined"
#endif
/* Standard profilable entities. */
enum {
/* Profile insn usage. */
PROFILE_INSN_IDX = 1,
/* Profile memory usage. */
PROFILE_MEMORY_IDX,
/* Profile the cpu model (cycles, etc.). */
PROFILE_MODEL_IDX,
/* Profile the simulator's execution cache. */
PROFILE_SCACHE_IDX,
/* Profile the PC. */
PROFILE_PC_IDX,
/* Profile sim-core.c stuff. */
/* ??? The difference between this and PROFILE_MEMORY_IDX is ... ? */
PROFILE_CORE_IDX,
/* Simulator specific profile bits begin here. */
PROFILE_NEXT_IDX
};
/* Maximum number of profilable entities. */
#ifndef MAX_PROFILE_VALUES
#define MAX_PROFILE_VALUES 32
#endif
/* The -p option only prints useful values. It's easy to type and shouldn't
splat on the screen everything under the sun making nothing easy to
find. */
#define PROFILE_USEFUL_MASK \
((1 << PROFILE_INSN_IDX) \
| (1 << PROFILE_MEMORY_IDX) \
| (1 << PROFILE_MODEL_IDX) \
| (1 << PROFILE_CORE_IDX))
/* Utility to set profile options. */
SIM_RC set_profile_option_mask (SIM_DESC sd_, const char *name_, int mask_,
const char *arg_);
/* Utility to parse a --profile-<foo> option. */
/* ??? On the one hand all calls could be confined to sim-profile.c, but
on the other hand keeping a module's profiling option with the module's
source is cleaner. */
SIM_RC sim_profile_set_option (SIM_DESC sd_, const char *name_, int idx_,
const char *arg_);
/* Masks so WITH_PROFILE can have symbolic values.
The case choice here is on purpose. The lowercase parts are args to
--with-profile. */
#define PROFILE_insn (1 << PROFILE_INSN_IDX)
#define PROFILE_memory (1 << PROFILE_MEMORY_IDX)
#define PROFILE_model (1 << PROFILE_MODEL_IDX)
#define PROFILE_scache (1 << PROFILE_SCACHE_IDX)
#define PROFILE_pc (1 << PROFILE_PC_IDX)
#define PROFILE_core (1 << PROFILE_CORE_IDX)
/* Preprocessor macros to simplify tests of WITH_PROFILE. */
#define WITH_PROFILE_INSN_P (WITH_PROFILE & PROFILE_insn)
#define WITH_PROFILE_MEMORY_P (WITH_PROFILE & PROFILE_memory)
#define WITH_PROFILE_MODEL_P (WITH_PROFILE & PROFILE_model)
#define WITH_PROFILE_SCACHE_P (WITH_PROFILE & PROFILE_scache)
#define WITH_PROFILE_PC_P (WITH_PROFILE & PROFILE_pc)
#define WITH_PROFILE_CORE_P (WITH_PROFILE & PROFILE_core)
/* If MAX_TARGET_MODES isn't defined, we can't do memory profiling.
??? It is intended that this is a temporary occurrence. Normally
MAX_TARGET_MODES is defined. */
#ifndef MAX_TARGET_MODES
#undef WITH_PROFILE_MEMORY_P
#define WITH_PROFILE_MEMORY_P 0
#endif
/* Output format macros. */
#ifndef PROFILE_HISTOGRAM_WIDTH
#define PROFILE_HISTOGRAM_WIDTH 40
#endif
#ifndef PROFILE_LABEL_WIDTH
#define PROFILE_LABEL_WIDTH 32
#endif
/* Callbacks for internal profile_info.
The callbacks may be NULL meaning there isn't one.
Note that results are indented two spaces to distinguish them from
section titles.
If non-NULL, PROFILE_CALLBACK is called to print extra non-cpu related data.
If non-NULL, PROFILE_CPU_CALLBACK is called to print extra cpu related data.
*/
typedef void (PROFILE_INFO_CALLBACK_FN) (SIM_DESC, int);
struct _sim_cpu; /* forward reference */
typedef void (PROFILE_INFO_CPU_CALLBACK_FN) (struct _sim_cpu *cpu, int verbose);
/* Struct containing most profiling data.
It doesn't contain all profiling data because for example scache data
is kept with the rest of scache support. */
typedef struct {
/* Global summary of all the current profiling options. */
char profile_any_p;
/* Boolean array of specified profiling flags. */
char profile_flags[MAX_PROFILE_VALUES];
#define PROFILE_FLAGS(p) ((p)->profile_flags)
/* The total insn count is tracked separately.
It is always computed, regardless of insn profiling. */
unsigned long total_insn_count;
#define PROFILE_TOTAL_INSN_COUNT(p) ((p)->total_insn_count)
/* CPU frequency. Always accepted, regardless of profiling options. */
unsigned long cpu_freq;
#define PROFILE_CPU_FREQ(p) ((p)->cpu_freq)
#if WITH_PROFILE_INSN_P
unsigned int *insn_count;
#define PROFILE_INSN_COUNT(p) ((p)->insn_count)
#endif
#if WITH_PROFILE_MEMORY_P
unsigned int read_count[MAX_TARGET_MODES];
#define PROFILE_READ_COUNT(p) ((p)->read_count)
unsigned int write_count[MAX_TARGET_MODES];
#define PROFILE_WRITE_COUNT(p) ((p)->write_count)
#endif
#if WITH_PROFILE_CORE_P
/* Count read/write/exec accesses separatly. */
unsigned int core_count[nr_maps];
#define PROFILE_CORE_COUNT(p) ((p)->core_count)
#endif
#if WITH_PROFILE_MODEL_P
/* ??? Quick hack until more elaborate scheme is finished. */
/* Total cycle count, including stalls. */
unsigned long total_cycles;
#define PROFILE_MODEL_TOTAL_CYCLES(p) ((p)->total_cycles)
/* Stalls due to branches. */
unsigned long cti_stall_cycles;
#define PROFILE_MODEL_CTI_STALL_CYCLES(p) ((p)->cti_stall_cycles)
unsigned long load_stall_cycles;
#define PROFILE_MODEL_LOAD_STALL_CYCLES(p) ((p)->load_stall_cycles)
/* Number of cycles the current instruction took. */
unsigned long cur_insn_cycles;
#define PROFILE_MODEL_CUR_INSN_CYCLES(p) ((p)->cur_insn_cycles)
/* Taken and not-taken branches (and other cti's). */
unsigned long taken_count, untaken_count;
#define PROFILE_MODEL_TAKEN_COUNT(p) ((p)->taken_count)
#define PROFILE_MODEL_UNTAKEN_COUNT(p) ((p)->untaken_count)
#endif
#if WITH_PROFILE_PC_P
/* PC profiling attempts to determine function usage by sampling the PC
every so many instructions. */
unsigned int profile_pc_freq;
#define PROFILE_PC_FREQ(p) ((p)->profile_pc_freq)
unsigned int profile_pc_nr_buckets;
#define PROFILE_PC_NR_BUCKETS(p) ((p)->profile_pc_nr_buckets)
address_word profile_pc_start;
#define PROFILE_PC_START(p) ((p)->profile_pc_start)
address_word profile_pc_end;
#define PROFILE_PC_END(p) ((p)->profile_pc_end)
unsigned profile_pc_shift;
#define PROFILE_PC_SHIFT(p) ((p)->profile_pc_shift)
#define PROFILE_PC_BUCKET_SIZE(p) (PROFILE_PC_SHIFT (p) ? (1 << PROFILE_PC_SHIFT (p)) : 0)
unsigned *profile_pc_count;
#define PROFILE_PC_COUNT(p) ((p)->profile_pc_count)
sim_event *profile_pc_event;
#define PROFILE_PC_EVENT(p) ((p)->profile_pc_event)
#endif
/* Profile output goes to this or stderr if NULL.
We can't store `stderr' here as stderr goes through a callback. */
FILE *profile_file;
#define PROFILE_FILE(p) ((p)->profile_file)
/* When reporting a profile summary, hook to include per-processor
target specific profile information */
PROFILE_INFO_CPU_CALLBACK_FN *info_cpu_callback;
#define PROFILE_INFO_CPU_CALLBACK(p) ((p)->info_cpu_callback)
/* When reporting a profile summary, hook to include common target
specific profile information */
PROFILE_INFO_CALLBACK_FN *info_callback;
#define STATE_PROFILE_INFO_CALLBACK(sd) \
(CPU_PROFILE_DATA (STATE_CPU (sd, 0))->info_callback)
/* Profile range.
??? Not all cpu's support this. */
ADDR_RANGE range;
#define PROFILE_RANGE(p) (& (p)->range)
} PROFILE_DATA;
/* Predicates. */
#define CPU_PROFILE_FLAGS(cpu) PROFILE_FLAGS (CPU_PROFILE_DATA (cpu))
/* Return non-zero if tracing of IDX is enabled for CPU. */
#define PROFILE_P(cpu,idx) \
((WITH_PROFILE & (1 << (idx))) != 0 \
&& CPU_PROFILE_FLAGS (cpu)[idx] != 0)
/* Non-zero if --profile-<xxxx> was specified for CPU. */
#define PROFILE_ANY_P(cpu) ((WITH_PROFILE) && (CPU_PROFILE_DATA (cpu)->profile_any_p))
#define PROFILE_INSN_P(cpu) PROFILE_P (cpu, PROFILE_INSN_IDX)
#define PROFILE_MEMORY_P(cpu) PROFILE_P (cpu, PROFILE_MEMORY_IDX)
#define PROFILE_MODEL_P(cpu) PROFILE_P (cpu, PROFILE_MODEL_IDX)
#define PROFILE_SCACHE_P(cpu) PROFILE_P (cpu, PROFILE_SCACHE_IDX)
#define PROFILE_PC_P(cpu) PROFILE_P (cpu, PROFILE_PC_IDX)
#define PROFILE_CORE_P(cpu) PROFILE_P (cpu, PROFILE_CORE_IDX)
/* Usage macros. */
#if WITH_PROFILE_INSN_P
#define PROFILE_COUNT_INSN(cpu, pc, insn_num) \
do { \
if (PROFILE_INSN_P (cpu)) \
++ PROFILE_INSN_COUNT (CPU_PROFILE_DATA (cpu)) [insn_num]; \
} while (0)
#else
#define PROFILE_COUNT_INSN(cpu, pc, insn_num)
#endif /* ! insn */
#if WITH_PROFILE_MEMORY_P
#define PROFILE_COUNT_READ(cpu, addr, mode_num) \
do { \
if (PROFILE_MEMORY_P (cpu)) \
++ PROFILE_READ_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \
} while (0)
#define PROFILE_COUNT_WRITE(cpu, addr, mode_num) \
do { \
if (PROFILE_MEMORY_P (cpu)) \
++ PROFILE_WRITE_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \
} while (0)
#else
#define PROFILE_COUNT_READ(cpu, addr, mode_num)
#define PROFILE_COUNT_WRITE(cpu, addr, mode_num)
#endif /* ! memory */
#if WITH_PROFILE_CORE_P
#define PROFILE_COUNT_CORE(cpu, addr, size, map) \
do { \
if (PROFILE_CORE_P (cpu)) \
PROFILE_CORE_COUNT (CPU_PROFILE_DATA (cpu)) [map] += 1; \
} while (0)
#else
#define PROFILE_COUNT_CORE(cpu, addr, size, map)
#endif /* ! core */
#if WITH_PROFILE_MODEL_P
#define PROFILE_BRANCH_TAKEN(cpu) \
do { \
if (PROFILE_MODEL_P (cpu)) \
++ PROFILE_MODEL_TAKEN_COUNT (CPU_PROFILE_DATA (cpu)); \
} while (0)
#define PROFILE_BRANCH_UNTAKEN(cpu) \
do { \
if (PROFILE_MODEL_P (cpu)) \
++ PROFILE_MODEL_UNTAKEN_COUNT (CPU_PROFILE_DATA (cpu)); \
} while (0)
#else
#define PROFILE_BRANCH_TAKEN(cpu)
#define PROFILE_BRANCH_UNTAKEN(cpu)
#endif /* ! model */
/* Misc. utilities. */
extern void sim_profile_print_bar (SIM_DESC, sim_cpu *, unsigned int, unsigned int, unsigned int);
#endif /* SIM_PROFILE_H */
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