58f03a4028
The profile code has a lot of helper macros already, but none yet for the branch profiling code. So add ones for the basic functions -- taken and untaken branches. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
313 lines
10 KiB
C
313 lines
10 KiB
C
/* Profile header for simulators using common framework.
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Copyright (C) 1996, 1997, 1998, 2007, 2008, 2009, 2010
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Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef SIM_PROFILE_H
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#define SIM_PROFILE_H
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#ifndef WITH_PROFILE
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Error, WITH_PROFILE not defined.
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#endif
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/* Standard profilable entities. */
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enum {
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/* Profile insn usage. */
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PROFILE_INSN_IDX = 1,
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/* Profile memory usage. */
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PROFILE_MEMORY_IDX,
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/* Profile the cpu model (cycles, etc.). */
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PROFILE_MODEL_IDX,
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/* Profile the simulator's execution cache. */
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PROFILE_SCACHE_IDX,
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/* Profile the PC. */
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PROFILE_PC_IDX,
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/* Profile sim-core.c stuff. */
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/* ??? The difference between this and PROFILE_MEMORY_IDX is ... ? */
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PROFILE_CORE_IDX,
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/* Simulator specific profile bits begin here. */
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PROFILE_NEXT_IDX
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};
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/* Maximum number of profilable entities. */
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#ifndef MAX_PROFILE_VALUES
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#define MAX_PROFILE_VALUES 32
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#endif
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/* The -p option only prints useful values. It's easy to type and shouldn't
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splat on the screen everything under the sun making nothing easy to
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find. */
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#define PROFILE_USEFUL_MASK \
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((1 << PROFILE_INSN_IDX) \
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| (1 << PROFILE_MEMORY_IDX) \
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| (1 << PROFILE_MODEL_IDX) \
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| (1 << PROFILE_CORE_IDX))
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/* Utility to set profile options. */
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SIM_RC set_profile_option_mask (SIM_DESC sd_, const char *name_, int mask_,
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const char *arg_);
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/* Utility to parse a --profile-<foo> option. */
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/* ??? On the one hand all calls could be confined to sim-profile.c, but
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on the other hand keeping a module's profiling option with the module's
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source is cleaner. */
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SIM_RC sim_profile_set_option (SIM_DESC sd_, const char *name_, int idx_,
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const char *arg_);
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/* Masks so WITH_PROFILE can have symbolic values.
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The case choice here is on purpose. The lowercase parts are args to
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--with-profile. */
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#define PROFILE_insn (1 << PROFILE_INSN_IDX)
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#define PROFILE_memory (1 << PROFILE_MEMORY_IDX)
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#define PROFILE_model (1 << PROFILE_MODEL_IDX)
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#define PROFILE_scache (1 << PROFILE_SCACHE_IDX)
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#define PROFILE_pc (1 << PROFILE_PC_IDX)
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#define PROFILE_core (1 << PROFILE_CORE_IDX)
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/* Preprocessor macros to simplify tests of WITH_PROFILE. */
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#define WITH_PROFILE_INSN_P (WITH_PROFILE & PROFILE_insn)
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#define WITH_PROFILE_MEMORY_P (WITH_PROFILE & PROFILE_memory)
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#define WITH_PROFILE_MODEL_P (WITH_PROFILE & PROFILE_model)
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#define WITH_PROFILE_SCACHE_P (WITH_PROFILE & PROFILE_scache)
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#define WITH_PROFILE_PC_P (WITH_PROFILE & PROFILE_pc)
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#define WITH_PROFILE_CORE_P (WITH_PROFILE & PROFILE_core)
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/* If MAX_TARGET_MODES isn't defined, we can't do memory profiling.
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??? It is intended that this is a temporary occurrence. Normally
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MAX_TARGET_MODES is defined. */
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#ifndef MAX_TARGET_MODES
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#undef WITH_PROFILE_MEMORY_P
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#define WITH_PROFILE_MEMORY_P 0
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#endif
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/* Only build MODEL code when the target simulator has support for it */
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#ifndef SIM_HAVE_MODEL
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#undef WITH_PROFILE_MODEL_P
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#define WITH_PROFILE_MODEL_P 0
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#endif
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/* Profiling install handler. */
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MODULE_INSTALL_FN profile_install;
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/* Output format macros. */
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#ifndef PROFILE_HISTOGRAM_WIDTH
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#define PROFILE_HISTOGRAM_WIDTH 40
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#endif
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#ifndef PROFILE_LABEL_WIDTH
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#define PROFILE_LABEL_WIDTH 32
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#endif
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/* Callbacks for internal profile_info.
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The callbacks may be NULL meaning there isn't one.
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Note that results are indented two spaces to distinguish them from
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section titles.
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If non-NULL, PROFILE_CALLBACK is called to print extra non-cpu related data.
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If non-NULL, PROFILE_CPU_CALLBACK is called to print extra cpu related data.
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*/
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typedef void (PROFILE_INFO_CALLBACK_FN) (SIM_DESC, int);
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struct _sim_cpu; /* forward reference */
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typedef void (PROFILE_INFO_CPU_CALLBACK_FN) (struct _sim_cpu *cpu, int verbose);
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/* Struct containing most profiling data.
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It doesn't contain all profiling data because for example scache data
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is kept with the rest of scache support. */
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typedef struct {
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/* Global summary of all the current profiling options. */
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char profile_any_p;
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/* Boolean array of specified profiling flags. */
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char profile_flags[MAX_PROFILE_VALUES];
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#define PROFILE_FLAGS(p) ((p)->profile_flags)
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/* The total insn count is tracked separately.
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It is always computed, regardless of insn profiling. */
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unsigned long total_insn_count;
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#define PROFILE_TOTAL_INSN_COUNT(p) ((p)->total_insn_count)
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/* CPU frequency. Always accepted, regardless of profiling options. */
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unsigned long cpu_freq;
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#define PROFILE_CPU_FREQ(p) ((p)->cpu_freq)
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#if WITH_PROFILE_INSN_P
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unsigned int *insn_count;
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#define PROFILE_INSN_COUNT(p) ((p)->insn_count)
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#endif
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#if WITH_PROFILE_MEMORY_P
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unsigned int read_count[MAX_TARGET_MODES];
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#define PROFILE_READ_COUNT(p) ((p)->read_count)
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unsigned int write_count[MAX_TARGET_MODES];
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#define PROFILE_WRITE_COUNT(p) ((p)->write_count)
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#endif
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#if WITH_PROFILE_CORE_P
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/* Count read/write/exec accesses separatly. */
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unsigned int core_count[nr_maps];
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#define PROFILE_CORE_COUNT(p) ((p)->core_count)
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#endif
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#if WITH_PROFILE_MODEL_P
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/* ??? Quick hack until more elaborate scheme is finished. */
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/* Total cycle count, including stalls. */
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unsigned long total_cycles;
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#define PROFILE_MODEL_TOTAL_CYCLES(p) ((p)->total_cycles)
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/* Stalls due to branches. */
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unsigned long cti_stall_cycles;
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#define PROFILE_MODEL_CTI_STALL_CYCLES(p) ((p)->cti_stall_cycles)
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unsigned long load_stall_cycles;
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#define PROFILE_MODEL_LOAD_STALL_CYCLES(p) ((p)->load_stall_cycles)
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/* Number of cycles the current instruction took. */
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unsigned long cur_insn_cycles;
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#define PROFILE_MODEL_CUR_INSN_CYCLES(p) ((p)->cur_insn_cycles)
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/* Taken and not-taken branches (and other cti's). */
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unsigned long taken_count, untaken_count;
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#define PROFILE_MODEL_TAKEN_COUNT(p) ((p)->taken_count)
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#define PROFILE_MODEL_UNTAKEN_COUNT(p) ((p)->untaken_count)
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#endif
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#if WITH_PROFILE_PC_P
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/* PC profiling attempts to determine function usage by sampling the PC
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every so many instructions. */
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unsigned int profile_pc_freq;
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#define PROFILE_PC_FREQ(p) ((p)->profile_pc_freq)
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unsigned int profile_pc_nr_buckets;
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#define PROFILE_PC_NR_BUCKETS(p) ((p)->profile_pc_nr_buckets)
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address_word profile_pc_start;
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#define PROFILE_PC_START(p) ((p)->profile_pc_start)
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address_word profile_pc_end;
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#define PROFILE_PC_END(p) ((p)->profile_pc_end)
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unsigned profile_pc_shift;
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#define PROFILE_PC_SHIFT(p) ((p)->profile_pc_shift)
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#define PROFILE_PC_BUCKET_SIZE(p) (PROFILE_PC_SHIFT (p) ? (1 << PROFILE_PC_SHIFT (p)) : 0)
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unsigned *profile_pc_count;
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#define PROFILE_PC_COUNT(p) ((p)->profile_pc_count)
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sim_event *profile_pc_event;
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#define PROFILE_PC_EVENT(p) ((p)->profile_pc_event)
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#endif
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/* Profile output goes to this or stderr if NULL.
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We can't store `stderr' here as stderr goes through a callback. */
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FILE *profile_file;
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#define PROFILE_FILE(p) ((p)->profile_file)
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/* When reporting a profile summary, hook to include per-processor
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target specific profile information */
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PROFILE_INFO_CPU_CALLBACK_FN *info_cpu_callback;
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#define PROFILE_INFO_CPU_CALLBACK(p) ((p)->info_cpu_callback)
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/* When reporting a profile summary, hook to include common target
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specific profile information */
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PROFILE_INFO_CALLBACK_FN *info_callback;
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#define STATE_PROFILE_INFO_CALLBACK(sd) \
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(CPU_PROFILE_DATA (STATE_CPU (sd, 0))->info_callback)
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/* Profile range.
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??? Not all cpu's support this. */
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ADDR_RANGE range;
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#define PROFILE_RANGE(p) (& (p)->range)
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} PROFILE_DATA;
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/* Predicates. */
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#define CPU_PROFILE_FLAGS(cpu) PROFILE_FLAGS (CPU_PROFILE_DATA (cpu))
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/* Return non-zero if tracing of IDX is enabled for CPU. */
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#define PROFILE_P(cpu,idx) \
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((WITH_PROFILE & (1 << (idx))) != 0 \
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&& CPU_PROFILE_FLAGS (cpu)[idx] != 0)
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/* Non-zero if --profile-<xxxx> was specified for CPU. */
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#define PROFILE_ANY_P(cpu) ((WITH_PROFILE) && (CPU_PROFILE_DATA (cpu)->profile_any_p))
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#define PROFILE_INSN_P(cpu) PROFILE_P (cpu, PROFILE_INSN_IDX)
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#define PROFILE_MEMORY_P(cpu) PROFILE_P (cpu, PROFILE_MEMORY_IDX)
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#define PROFILE_MODEL_P(cpu) PROFILE_P (cpu, PROFILE_MODEL_IDX)
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#define PROFILE_SCACHE_P(cpu) PROFILE_P (cpu, PROFILE_SCACHE_IDX)
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#define PROFILE_PC_P(cpu) PROFILE_P (cpu, PROFILE_PC_IDX)
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#define PROFILE_CORE_P(cpu) PROFILE_P (cpu, PROFILE_CORE_IDX)
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/* Usage macros. */
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#if WITH_PROFILE_INSN_P
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#define PROFILE_COUNT_INSN(cpu, pc, insn_num) \
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do { \
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if (PROFILE_INSN_P (cpu)) \
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++ PROFILE_INSN_COUNT (CPU_PROFILE_DATA (cpu)) [insn_num]; \
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} while (0)
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#else
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#define PROFILE_COUNT_INSN(cpu, pc, insn_num)
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#endif /* ! insn */
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#if WITH_PROFILE_MEMORY_P
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#define PROFILE_COUNT_READ(cpu, addr, mode_num) \
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do { \
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if (PROFILE_MEMORY_P (cpu)) \
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++ PROFILE_READ_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \
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} while (0)
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#define PROFILE_COUNT_WRITE(cpu, addr, mode_num) \
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do { \
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if (PROFILE_MEMORY_P (cpu)) \
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++ PROFILE_WRITE_COUNT (CPU_PROFILE_DATA (cpu)) [mode_num]; \
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} while (0)
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#else
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#define PROFILE_COUNT_READ(cpu, addr, mode_num)
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#define PROFILE_COUNT_WRITE(cpu, addr, mode_num)
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#endif /* ! memory */
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#if WITH_PROFILE_CORE_P
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#define PROFILE_COUNT_CORE(cpu, addr, size, map) \
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do { \
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if (PROFILE_CORE_P (cpu)) \
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PROFILE_CORE_COUNT (CPU_PROFILE_DATA (cpu)) [map] += 1; \
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} while (0)
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#else
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#define PROFILE_COUNT_CORE(cpu, addr, size, map)
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#endif /* ! core */
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#if WITH_PROFILE_MODEL_P
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#define PROFILE_BRANCH_TAKEN(cpu) \
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do { \
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if (PROFILE_MODEL_P (cpu)) \
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++ PROFILE_MODEL_TAKEN_COUNT (CPU_PROFILE_DATA (cpu)); \
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} while (0)
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#define PROFILE_BRANCH_UNTAKEN(cpu) \
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do { \
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if (PROFILE_MODEL_P (cpu)) \
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++ PROFILE_MODEL_UNTAKEN_COUNT (CPU_PROFILE_DATA (cpu)); \
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} while (0)
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#else
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#define PROFILE_BRANCH_TAKEN(cpu)
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#define PROFILE_BRANCH_UNTAKEN(cpu)
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#endif /* ! model */
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/* Misc. utilities. */
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extern void sim_profile_print_bar (SIM_DESC, unsigned int, unsigned int, unsigned int);
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#endif /* SIM_PROFILE_H */
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