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Commit 5a059790 authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
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perf jevents: Remove jevents.c 

Remove files and build rules.

Remove test for comparing with jevents.py as there is no longer a binary
to compare with.
Signed-off-by: default avatarIan Rogers <irogers@google.com>
Tested-by: default avatarJohn Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kshipra Bopardikar <kshipra.bopardikar@intel.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Forrington <nick.forrington@arm.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Liu <liuqi115@huawei.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220629182505.406269-5-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 00facc76
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Showing with 2 additions and 2019 deletions
tools/perf/Makefile.perf
View file @ 5a059790
......@@ -651,32 +651,15 @@ strip: $(PROGRAMS) $(OUTPUT)perf
PERF_IN := $(OUTPUT)perf-in.o
JEVENTS := $(OUTPUT)pmu-events/jevents
JEVENTS_IN := $(OUTPUT)pmu-events/jevents-in.o
PMU_EVENTS_IN := $(OUTPUT)pmu-events/pmu-events-in.o
export NO_JEVENTS
export JEVENTS
build := -f $(srctree)/tools/build/Makefile.build dir=. obj
$(PERF_IN): prepare FORCE
$(Q)$(MAKE) $(build)=perf
$(JEVENTS_IN): FORCE
$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=pmu-events obj=jevents
$(JEVENTS): $(JEVENTS_IN)
$(QUIET_LINK)$(HOSTCC) $(JEVENTS_IN) -o $@
JEVENTS_PY := pmu-events/jevents.py
JEVENTS_PY_TEST := pmu-events/jevents-test.sh
.PHONY: jevents-py-test
jevents-py-test: $(JEVENTS)
$(Q)$(call echo-cmd,gen)$(JEVENTS_PY_TEST) $(JEVENTS) $(JEVENTS_PY) pmu-events/arch
$(PMU_EVENTS_IN): $(JEVENTS) FORCE
$(PMU_EVENTS_IN): FORCE
$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=pmu-events obj=pmu-events
$(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(PMU_EVENTS_IN) $(LIBTRACEEVENT_DYNAMIC_LIST)
......@@ -1096,7 +1079,7 @@ clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clea
$(call QUIET_CLEAN, core-objs) $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive $(OUTPUT)perf-iostat $(LANG_BINDINGS)
$(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
$(Q)$(RM) $(OUTPUT).config-detected
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32 $(OUTPUT)pmu-events/jevents $(OUTPUT)$(LIBJVMTI).so
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32 $(OUTPUT)$(LIBJVMTI).so
$(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
......
tools/perf/pmu-events/Build
View file @ 5a059790
hostprogs := jevents
jevents-y += json.o jsmn.o jevents.o
HOSTCFLAGS_jevents.o = -I$(srctree)/tools/include
pmu-events-y += pmu-events.o
JDIR = pmu-events/arch/$(SRCARCH)
JSON = $(shell [ -d $(JDIR) ] && \
......
tools/perf/pmu-events/jevents-test.sh deleted 100755 → 0
View file @ 00facc76
#!/bin/sh
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
# Validate that the legacy jevents and jevents.py produce identical output.
set -e
JEVENTS="$1"
JEVENTS_PY="$2"
ARCH_PATH="$3"
JEVENTS_C_GENERATED=$(mktemp /tmp/jevents_c.XXXXX.c)
JEVENTS_PY_GENERATED=$(mktemp /tmp/jevents_py.XXXXX.c)
cleanup() {
rm "$JEVENTS_C_GENERATED" "$JEVENTS_PY_GENERATED"
trap - exit term int
}
trap cleanup exit term int
for path in "$ARCH_PATH"/*
do
arch=$(basename $path)
if [ "$arch" = "test" ]
then
continue
fi
echo "Checking architecture: $arch"
echo "Generating using jevents.c"
"$JEVENTS" "$arch" "$ARCH_PATH" "$JEVENTS_C_GENERATED"
echo "Generating using jevents.py"
"$JEVENTS_PY" "$arch" "$ARCH_PATH" "$JEVENTS_PY_GENERATED"
echo "Diffing"
diff -u "$JEVENTS_C_GENERATED" "$JEVENTS_PY_GENERATED"
done
cleanup
tools/perf/pmu-events/jevents.c deleted 100644 → 0
View file @ 00facc76
#define _XOPEN_SOURCE 500 /* needed for nftw() */
#define _GNU_SOURCE /* needed for asprintf() */
/* Parse event JSON files */
/*
* Copyright (c) 2014, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <stdarg.h>
#include <libgen.h>
#include <limits.h>
#include <dirent.h>
#include <sys/time.h> /* getrlimit */
#include <sys/resource.h> /* getrlimit */
#include <ftw.h>
#include <sys/stat.h>
#include <linux/compiler.h>
#include <linux/list.h>
#include "jsmn.h"
#include "json.h"
#include "pmu-events.h"
int verbose;
char *prog;
struct json_event {
char *name;
char *compat;
char *event;
char *desc;
char *long_desc;
char *pmu;
char *unit;
char *perpkg;
char *aggr_mode;
char *metric_expr;
char *metric_name;
char *metric_group;
char *deprecated;
char *metric_constraint;
};
static enum aggr_mode_class convert(const char *aggr_mode)
{
if (!strcmp(aggr_mode, "PerCore"))
return PerCore;
else if (!strcmp(aggr_mode, "PerChip"))
return PerChip;
pr_err("%s: Wrong AggregationMode value '%s'\n", prog, aggr_mode);
return -1;
}
static LIST_HEAD(sys_event_tables);
struct sys_event_table {
struct list_head list;
char *soc_id;
};
static void free_sys_event_tables(void)
{
struct sys_event_table *et, *next;
list_for_each_entry_safe(et, next, &sys_event_tables, list) {
free(et->soc_id);
free(et);
}
}
int eprintf(int level, int var, const char *fmt, ...)
{
int ret;
va_list args;
if (var < level)
return 0;
va_start(args, fmt);
ret = vfprintf(stderr, fmt, args);
va_end(args);
return ret;
}
static void addfield(char *map, char **dst, const char *sep,
const char *a, jsmntok_t *bt)
{
unsigned int len = strlen(a) + 1 + strlen(sep);
int olen = *dst ? strlen(*dst) : 0;
int blen = bt ? json_len(bt) : 0;
char *out;
out = realloc(*dst, len + olen + blen);
if (!out) {
/* Don't add field in this case */
return;
}
*dst = out;
if (!olen)
*(*dst) = 0;
else
strcat(*dst, sep);
strcat(*dst, a);
if (bt)
strncat(*dst, map + bt->start, blen);
}
static void fixname(char *s)
{
for (; *s; s++)
*s = tolower(*s);
}
static void fixdesc(char *s)
{
char *e = s + strlen(s);
/* Remove trailing dots that look ugly in perf list */
--e;
while (e >= s && isspace(*e))
--e;
if (*e == '.')
*e = 0;
}
/* Add escapes for '\' so they are proper C strings. */
static char *fixregex(char *s)
{
int len = 0;
int esc_count = 0;
char *fixed = NULL;
char *p, *q;
/* Count the number of '\' in string */
for (p = s; *p; p++) {
++len;
if (*p == '\\')
++esc_count;
}
if (esc_count == 0)
return s;
/* allocate space for a new string */
fixed = (char *) malloc(len + esc_count + 1);
if (!fixed)
return NULL;
/* copy over the characters */
q = fixed;
for (p = s; *p; p++) {
if (*p == '\\') {
*q = '\\';
++q;
}
*q = *p;
++q;
}
*q = '\0';
return fixed;
}
static struct msrmap {
const char *num;
const char *pname;
} msrmap[] = {
{ "0x3F6", "ldlat=" },
{ "0x1A6", "offcore_rsp=" },
{ "0x1A7", "offcore_rsp=" },
{ "0x3F7", "frontend=" },
{ NULL, NULL }
};
static void cut_comma(char *map, jsmntok_t *newval)
{
int i;
/* Cut off everything after comma */
for (i = newval->start; i < newval->end; i++) {
if (map[i] == ',')
newval->end = i;
}
}
static struct msrmap *lookup_msr(char *map, jsmntok_t *val)
{
jsmntok_t newval = *val;
static bool warned;
int i;
cut_comma(map, &newval);
for (i = 0; msrmap[i].num; i++)
if (json_streq(map, &newval, msrmap[i].num))
return &msrmap[i];
if (!warned) {
warned = true;
pr_err("%s: Unknown MSR in event file %.*s\n", prog,
json_len(val), map + val->start);
}
return NULL;
}
static struct map {
const char *json;
const char *perf;
} unit_to_pmu[] = {
{ "CBO", "uncore_cbox" },
{ "QPI LL", "uncore_qpi" },
{ "SBO", "uncore_sbox" },
{ "iMPH-U", "uncore_arb" },
{ "CPU-M-CF", "cpum_cf" },
{ "CPU-M-SF", "cpum_sf" },
{ "UPI LL", "uncore_upi" },
{ "hisi_sicl,cpa", "hisi_sicl,cpa"},
{ "hisi_sccl,ddrc", "hisi_sccl,ddrc" },
{ "hisi_sccl,hha", "hisi_sccl,hha" },
{ "hisi_sccl,l3c", "hisi_sccl,l3c" },
/* it's not realistic to keep adding these, we need something more scalable ... */
{ "imx8_ddr", "imx8_ddr" },
{ "L3PMC", "amd_l3" },
{ "DFPMC", "amd_df" },
{ "cpu_core", "cpu_core" },
{ "cpu_atom", "cpu_atom" },
{}
};
static const char *field_to_perf(struct map *table, char *map, jsmntok_t *val)
{
int i;
for (i = 0; table[i].json; i++) {
if (json_streq(map, val, table[i].json))
return table[i].perf;
}
return NULL;
}
#define EXPECT(e, t, m) do { if (!(e)) { \
jsmntok_t *loc = (t); \
if (!(t)->start && (t) > tokens) \
loc = (t) - 1; \
pr_err("%s:%d: " m ", got %s\n", fn, \
json_line(map, loc), \
json_name(t)); \
err = -EIO; \
goto out_free; \
} } while (0)
static char *topic;
static char *get_topic(void)
{
char *tp;
int i;
/* tp is free'd in process_one_file() */
i = asprintf(&tp, "%s", topic);
if (i < 0) {
pr_info("%s: asprintf() error %s\n", prog);
return NULL;
}
for (i = 0; i < (int) strlen(tp); i++) {
char c = tp[i];
if (c == '-')
tp[i] = ' ';
else if (c == '.') {
tp[i] = '\0';
break;
}
}
return tp;
}
static int add_topic(char *bname)
{
free(topic);
topic = strdup(bname);
if (!topic) {
pr_info("%s: strdup() error %s for file %s\n", prog,
strerror(errno), bname);
return -ENOMEM;
}
return 0;
}
struct perf_entry_data {
FILE *outfp;
char *topic;
};
static int close_table;
static void print_events_table_prefix(FILE *fp, const char *tblname)
{
fprintf(fp, "static const struct pmu_event %s[] = {\n", tblname);
close_table = 1;
}
static int print_events_table_entry(void *data, struct json_event *je)
{
struct perf_entry_data *pd = data;
FILE *outfp = pd->outfp;
char *topic_local = pd->topic;
/*
* TODO: Remove formatting chars after debugging to reduce
* string lengths.
*/
fprintf(outfp, "{\n");
if (je->name)
fprintf(outfp, "\t.name = \"%s\",\n", je->name);
if (je->event)
fprintf(outfp, "\t.event = \"%s\",\n", je->event);
fprintf(outfp, "\t.desc = \"%s\",\n", je->desc);
if (je->compat)
fprintf(outfp, "\t.compat = \"%s\",\n", je->compat);
fprintf(outfp, "\t.topic = \"%s\",\n", topic_local);
if (je->long_desc && je->long_desc[0])
fprintf(outfp, "\t.long_desc = \"%s\",\n", je->long_desc);
if (je->pmu)
fprintf(outfp, "\t.pmu = \"%s\",\n", je->pmu);
if (je->unit)
fprintf(outfp, "\t.unit = \"%s\",\n", je->unit);
if (je->perpkg)
fprintf(outfp, "\t.perpkg = \"%s\",\n", je->perpkg);
if (je->aggr_mode)
fprintf(outfp, "\t.aggr_mode = \"%d\",\n", convert(je->aggr_mode));
if (je->metric_expr)
fprintf(outfp, "\t.metric_expr = \"%s\",\n", je->metric_expr);
if (je->metric_name)
fprintf(outfp, "\t.metric_name = \"%s\",\n", je->metric_name);
if (je->metric_group)
fprintf(outfp, "\t.metric_group = \"%s\",\n", je->metric_group);
if (je->deprecated)
fprintf(outfp, "\t.deprecated = \"%s\",\n", je->deprecated);
if (je->metric_constraint)
fprintf(outfp, "\t.metric_constraint = \"%s\",\n", je->metric_constraint);
fprintf(outfp, "},\n");
return 0;
}
struct event_struct {
struct list_head list;
char *name;
char *event;
char *compat;
char *desc;
char *long_desc;
char *pmu;
char *unit;
char *perpkg;
char *aggr_mode;
char *metric_expr;
char *metric_name;
char *metric_group;
char *deprecated;
char *metric_constraint;
};
#define ADD_EVENT_FIELD(field) do { if (je->field) { \
es->field = strdup(je->field); \
if (!es->field) \
goto out_free; \
} } while (0)
#define FREE_EVENT_FIELD(field) free(es->field)
#define TRY_FIXUP_FIELD(field) do { if (es->field && !je->field) {\
je->field = strdup(es->field); \
if (!je->field) \
return -ENOMEM; \
} } while (0)
#define FOR_ALL_EVENT_STRUCT_FIELDS(op) do { \
op(name); \
op(event); \
op(desc); \
op(long_desc); \
op(pmu); \
op(unit); \
op(perpkg); \
op(aggr_mode); \
op(metric_expr); \
op(metric_name); \
op(metric_group); \
op(deprecated); \
} while (0)
static LIST_HEAD(arch_std_events);
static void free_arch_std_events(void)
{
struct event_struct *es, *next;
list_for_each_entry_safe(es, next, &arch_std_events, list) {
FOR_ALL_EVENT_STRUCT_FIELDS(FREE_EVENT_FIELD);
list_del_init(&es->list);
free(es);
}
}
static int save_arch_std_events(void *data __maybe_unused, struct json_event *je)
{
struct event_struct *es;
es = malloc(sizeof(*es));
if (!es)
return -ENOMEM;
memset(es, 0, sizeof(*es));
FOR_ALL_EVENT_STRUCT_FIELDS(ADD_EVENT_FIELD);
list_add_tail(&es->list, &arch_std_events);
return 0;
out_free:
FOR_ALL_EVENT_STRUCT_FIELDS(FREE_EVENT_FIELD);
free(es);
return -ENOMEM;
}
static void print_events_table_suffix(FILE *outfp)
{
fprintf(outfp, "{\n");
fprintf(outfp, "\t.name = 0,\n");
fprintf(outfp, "\t.event = 0,\n");
fprintf(outfp, "\t.desc = 0,\n");
fprintf(outfp, "},\n");
fprintf(outfp, "};\n");
close_table = 0;
}
static struct fixed {
const char *name;
const char *event;
} fixed[] = {
{ "inst_retired.any", "event=0xc0,period=2000003" },
{ "inst_retired.any_p", "event=0xc0,period=2000003" },
{ "cpu_clk_unhalted.ref", "event=0x0,umask=0x03,period=2000003" },
{ "cpu_clk_unhalted.thread", "event=0x3c,period=2000003" },
{ "cpu_clk_unhalted.core", "event=0x3c,period=2000003" },
{ "cpu_clk_unhalted.thread_any", "event=0x3c,any=1,period=2000003" },
{ NULL, NULL},
};
/*
* Handle different fixed counter encodings between JSON and perf.
*/
static char *real_event(const char *name, char *event)
{
int i;
if (!name)
return NULL;
for (i = 0; fixed[i].name; i++)
if (!strcasecmp(name, fixed[i].name))
return (char *)fixed[i].event;
return event;
}
static int
try_fixup(const char *fn, char *arch_std, struct json_event *je, char **event)
{
/* try to find matching event from arch standard values */
struct event_struct *es;
list_for_each_entry(es, &arch_std_events, list) {
if (!strcmp(arch_std, es->name)) {
FOR_ALL_EVENT_STRUCT_FIELDS(TRY_FIXUP_FIELD);
*event = je->event;
return 0;
}
}
pr_err("%s: could not find matching %s for %s\n",
prog, arch_std, fn);
return -1;
}
/* Call func with each event in the json file */
static int json_events(const char *fn,
int (*func)(void *data, struct json_event *je),
void *data)
{
int err;
size_t size;
jsmntok_t *tokens, *tok;
int i, j, len;
char *map;
char buf[128];
if (!fn)
return -ENOENT;
tokens = parse_json(fn, &map, &size, &len);
if (!tokens)
return -EIO;
EXPECT(tokens->type == JSMN_ARRAY, tokens, "expected top level array");
tok = tokens + 1;
for (i = 0; i < tokens->size; i++) {
char *event = NULL;
char *extra_desc = NULL;
char *filter = NULL;
struct json_event je = {};
char *arch_std = NULL;
unsigned long long eventcode = 0;
unsigned long long configcode = 0;
struct msrmap *msr = NULL;
jsmntok_t *msrval = NULL;
jsmntok_t *precise = NULL;
jsmntok_t *obj = tok++;
bool configcode_present = false;
char *umask = NULL;
char *cmask = NULL;
char *inv = NULL;
char *any = NULL;
char *edge = NULL;
char *period = NULL;
char *fc_mask = NULL;
char *ch_mask = NULL;
EXPECT(obj->type == JSMN_OBJECT, obj, "expected object");
for (j = 0; j < obj->size; j += 2) {
jsmntok_t *field, *val;
int nz;
char *s;
field = tok + j;
EXPECT(field->type == JSMN_STRING, tok + j,
"Expected field name");
val = tok + j + 1;
EXPECT(val->type == JSMN_STRING, tok + j + 1,
"Expected string value");
nz = !json_streq(map, val, "0");
/* match_field */
if (json_streq(map, field, "UMask") && nz) {
addfield(map, &umask, "", "umask=", val);
} else if (json_streq(map, field, "CounterMask") && nz) {
addfield(map, &cmask, "", "cmask=", val);
} else if (json_streq(map, field, "Invert") && nz) {
addfield(map, &inv, "", "inv=", val);
} else if (json_streq(map, field, "AnyThread") && nz) {
addfield(map, &any, "", "any=", val);
} else if (json_streq(map, field, "EdgeDetect") && nz) {
addfield(map, &edge, "", "edge=", val);
} else if (json_streq(map, field, "SampleAfterValue") && nz) {
addfield(map, &period, "", "period=", val);
} else if (json_streq(map, field, "FCMask") && nz) {
addfield(map, &fc_mask, "", "fc_mask=", val);
} else if (json_streq(map, field, "PortMask") && nz) {
addfield(map, &ch_mask, "", "ch_mask=", val);
} else if (json_streq(map, field, "EventCode")) {
char *code = NULL;
addfield(map, &code, "", "", val);
eventcode |= strtoul(code, NULL, 0);
free(code);
} else if (json_streq(map, field, "ConfigCode")) {
char *code = NULL;
addfield(map, &code, "", "", val);
configcode |= strtoul(code, NULL, 0);
free(code);
configcode_present = true;
} else if (json_streq(map, field, "ExtSel")) {
char *code = NULL;
addfield(map, &code, "", "", val);
eventcode |= strtoul(code, NULL, 0) << 8;
free(code);
} else if (json_streq(map, field, "EventName")) {
addfield(map, &je.name, "", "", val);
} else if (json_streq(map, field, "Compat")) {
addfield(map, &je.compat, "", "", val);
} else if (json_streq(map, field, "BriefDescription")) {
addfield(map, &je.desc, "", "", val);
fixdesc(je.desc);
} else if (json_streq(map, field,
"PublicDescription")) {
addfield(map, &je.long_desc, "", "", val);
fixdesc(je.long_desc);
} else if (json_streq(map, field, "PEBS") && nz) {
precise = val;
} else if (json_streq(map, field, "MSRIndex") && nz) {
msr = lookup_msr(map, val);
} else if (json_streq(map, field, "MSRValue")) {
msrval = val;
} else if (json_streq(map, field, "Errata") &&
!json_streq(map, val, "null")) {
addfield(map, &extra_desc, ". ",
" Spec update: ", val);
} else if (json_streq(map, field, "Data_LA") && nz) {
addfield(map, &extra_desc, ". ",
" Supports address when precise",
NULL);
} else if (json_streq(map, field, "Unit")) {
const char *ppmu;
ppmu = field_to_perf(unit_to_pmu, map, val);
if (ppmu) {
je.pmu = strdup(ppmu);
} else {
if (!je.pmu)
je.pmu = strdup("uncore_");
addfield(map, &je.pmu, "", "", val);
for (s = je.pmu; *s; s++)
*s = tolower(*s);
}
} else if (json_streq(map, field, "Filter")) {
addfield(map, &filter, "", "", val);
} else if (json_streq(map, field, "ScaleUnit")) {
addfield(map, &je.unit, "", "", val);
} else if (json_streq(map, field, "PerPkg")) {
addfield(map, &je.perpkg, "", "", val);
} else if (json_streq(map, field, "AggregationMode")) {
addfield(map, &je.aggr_mode, "", "", val);
} else if (json_streq(map, field, "Deprecated")) {
addfield(map, &je.deprecated, "", "", val);
} else if (json_streq(map, field, "MetricName")) {
addfield(map, &je.metric_name, "", "", val);
} else if (json_streq(map, field, "MetricGroup")) {
addfield(map, &je.metric_group, "", "", val);
} else if (json_streq(map, field, "MetricConstraint")) {
addfield(map, &je.metric_constraint, "", "", val);
} else if (json_streq(map, field, "MetricExpr")) {
addfield(map, &je.metric_expr, "", "", val);
} else if (json_streq(map, field, "ArchStdEvent")) {
addfield(map, &arch_std, "", "", val);
for (s = arch_std; *s; s++)
*s = tolower(*s);
}
/* ignore unknown fields */
}
if (precise && je.desc && !strstr(je.desc, "(Precise Event)")) {
if (json_streq(map, precise, "2"))
addfield(map, &extra_desc, " ",
"(Must be precise)", NULL);
else
addfield(map, &extra_desc, " ",
"(Precise event)", NULL);
}
if (configcode_present)
snprintf(buf, sizeof buf, "config=%#llx", configcode);
else
snprintf(buf, sizeof buf, "event=%#llx", eventcode);
addfield(map, &event, ",", buf, NULL);
if (any)
addfield(map, &event, ",", any, NULL);
if (ch_mask)
addfield(map, &event, ",", ch_mask, NULL);
if (cmask)
addfield(map, &event, ",", cmask, NULL);
if (edge)
addfield(map, &event, ",", edge, NULL);
if (fc_mask)
addfield(map, &event, ",", fc_mask, NULL);
if (inv)
addfield(map, &event, ",", inv, NULL);
if (period)
addfield(map, &event, ",", period, NULL);
if (umask)
addfield(map, &event, ",", umask, NULL);
if (je.desc && extra_desc)
addfield(map, &je.desc, " ", extra_desc, NULL);
if (je.long_desc && extra_desc)
addfield(map, &je.long_desc, " ", extra_desc, NULL);
if (je.pmu) {
addfield(map, &je.desc, ". ", "Unit: ", NULL);
addfield(map, &je.desc, "", je.pmu, NULL);
addfield(map, &je.desc, "", " ", NULL);
}
if (filter)
addfield(map, &event, ",", filter, NULL);
if (msr != NULL)
addfield(map, &event, ",", msr->pname, msrval);
if (je.name)
fixname(je.name);
if (arch_std) {
/*
* An arch standard event is referenced, so try to
* fixup any unassigned values.
*/
err = try_fixup(fn, arch_std, &je, &event);
if (err)
goto free_strings;
}
je.event = real_event(je.name, event);
err = func(data, &je);
free_strings:
free(umask);
free(cmask);
free(inv);
free(any);
free(edge);
free(period);
free(fc_mask);
free(ch_mask);
free(event);
free(je.desc);
free(je.name);
free(je.compat);
free(je.long_desc);
free(extra_desc);
free(je.pmu);
free(filter);
free(je.perpkg);
free(je.aggr_mode);
free(je.deprecated);
free(je.unit);
free(je.metric_expr);
free(je.metric_name);
free(je.metric_group);
free(je.metric_constraint);
free(arch_std);
if (err)
break;
tok += j;
}
EXPECT(tok - tokens == len, tok, "unexpected objects at end");
err = 0;
out_free:
free_json(map, size, tokens);
return err;
}
static char *file_name_to_table_name(char *fname)
{
unsigned int i;
int n;
int c;
char *tblname;
/*
* Ensure tablename starts with alphabetic character.
* Derive rest of table name from basename of the JSON file,
* replacing hyphens and stripping out .json suffix.
*/
n = asprintf(&tblname, "pme_%s", fname);
if (n < 0) {
pr_info("%s: asprintf() error %s for file %s\n", prog,
strerror(errno), fname);
return NULL;
}
for (i = 0; i < strlen(tblname); i++) {
c = tblname[i];
if (c == '-' || c == '/')
tblname[i] = '_';
else if (c == '.') {
tblname[i] = '\0';
break;
} else if (!isalnum(c) && c != '_') {
pr_err("%s: Invalid character '%c' in file name %s\n",
prog, c, basename(fname));
free(tblname);
tblname = NULL;
break;
}
}
return tblname;
}
static bool is_sys_dir(char *fname)
{
size_t len = strlen(fname), len2 = strlen("/sys");
if (len2 > len)
return false;
return !strcmp(fname+len-len2, "/sys");
}
static void print_mapping_table_prefix(FILE *outfp)
{
fprintf(outfp, "const struct pmu_events_map pmu_events_map[] = {\n");
}
static void print_mapping_table_suffix(FILE *outfp)
{
/*
* Print the terminating, NULL entry.
*/
fprintf(outfp, "{\n");
fprintf(outfp, "\t.cpuid = 0,\n");
fprintf(outfp, "\t.version = 0,\n");
fprintf(outfp, "\t.type = 0,\n");
fprintf(outfp, "\t.table = 0,\n");
fprintf(outfp, "},\n");
/* and finally, the closing curly bracket for the struct */
fprintf(outfp, "};\n");
}
static void print_mapping_test_table(FILE *outfp)
{
/*
* Print the terminating, NULL entry.
*/
fprintf(outfp, "{\n");
fprintf(outfp, "\t.cpuid = \"testcpu\",\n");
fprintf(outfp, "\t.version = \"v1\",\n");
fprintf(outfp, "\t.type = \"core\",\n");
fprintf(outfp, "\t.table = pme_test_soc_cpu,\n");
fprintf(outfp, "},\n");
}
static void print_system_event_mapping_table_prefix(FILE *outfp)
{
fprintf(outfp, "\nconst struct pmu_sys_events pmu_sys_event_tables[] = {");
}
static void print_system_event_mapping_table_suffix(FILE *outfp)
{
fprintf(outfp, "\n\t{\n\t\t.table = 0\n\t},");
fprintf(outfp, "\n};\n");
}
static int process_system_event_tables(FILE *outfp)
{
struct sys_event_table *sys_event_table;
print_system_event_mapping_table_prefix(outfp);
list_for_each_entry(sys_event_table, &sys_event_tables, list) {
fprintf(outfp, "\n\t{\n\t\t.table = %s,\n\t\t.name = \"%s\",\n\t},",
sys_event_table->soc_id,
sys_event_table->soc_id);
}
print_system_event_mapping_table_suffix(outfp);
return 0;
}
static int process_mapfile(FILE *outfp, char *fpath)
{
int n = 16384;
FILE *mapfp;
char *save = NULL;
char *line, *p;
int line_num;
char *tblname;
int ret = 0;
pr_info("%s: Processing mapfile %s\n", prog, fpath);
line = malloc(n);
if (!line)
return -1;
mapfp = fopen(fpath, "r");
if (!mapfp) {
pr_info("%s: Error %s opening %s\n", prog, strerror(errno),
fpath);
free(line);
return -1;
}
print_mapping_table_prefix(outfp);
/* Skip first line (header) */
p = fgets(line, n, mapfp);
if (!p)
goto out;
line_num = 1;
while (1) {
char *cpuid, *version, *type, *fname;
line_num++;
p = fgets(line, n, mapfp);
if (!p)
break;
if (line[0] == '#' || line[0] == '\n')
continue;
if (line[strlen(line)-1] != '\n') {
/* TODO Deal with lines longer than 16K */
pr_info("%s: Mapfile %s: line %d too long, aborting\n",
prog, fpath, line_num);
ret = -1;
goto out;
}
line[strlen(line)-1] = '\0';
cpuid = fixregex(strtok_r(p, ",", &save));
version = strtok_r(NULL, ",", &save);
fname = strtok_r(NULL, ",", &save);
type = strtok_r(NULL, ",", &save);
tblname = file_name_to_table_name(fname);
fprintf(outfp, "{\n");
fprintf(outfp, "\t.cpuid = \"%s\",\n", cpuid);
fprintf(outfp, "\t.version = \"%s\",\n", version);
fprintf(outfp, "\t.type = \"%s\",\n", type);
/*
* CHECK: We can't use the type (eg "core") field in the
* table name. For us to do that, we need to somehow tweak
* the other caller of file_name_to_table(), process_json()
* to determine the type. process_json() file has no way
* of knowing these are "core" events unless file name has
* core in it. If filename has core in it, we can safely
* ignore the type field here also.
*/
fprintf(outfp, "\t.table = %s\n", tblname);
fprintf(outfp, "},\n");
}
out:
print_mapping_test_table(outfp);
print_mapping_table_suffix(outfp);
fclose(mapfp);
free(line);
return ret;
}
/*
* If we fail to locate/process JSON and map files, create a NULL mapping
* table. This would at least allow perf to build even if we can't find/use
* the aliases.
*/
static void create_empty_mapping(const char *output_file)
{
FILE *outfp;
pr_info("%s: Creating empty pmu_events_map[] table\n", prog);
/* Truncate file to clear any partial writes to it */
outfp = fopen(output_file, "w");
if (!outfp) {
perror("fopen()");
_Exit(1);
}
fprintf(outfp, "#include \"pmu-events/pmu-events.h\"\n");
print_mapping_table_prefix(outfp);
print_mapping_table_suffix(outfp);
print_system_event_mapping_table_prefix(outfp);
print_system_event_mapping_table_suffix(outfp);
fclose(outfp);
}
static int get_maxfds(void)
{
struct rlimit rlim;
if (getrlimit(RLIMIT_NOFILE, &rlim) == 0)
return min(rlim.rlim_max / 2, (rlim_t)512);
return 512;
}
/*
* nftw() doesn't let us pass an argument to the processing function,
* so use a global variables.
*/
static FILE *eventsfp;
static char *mapfile;
static int is_leaf_dir(const char *fpath)
{
DIR *d;
struct dirent *dir;
int res = 1;
d = opendir(fpath);
if (!d)
return 0;
while ((dir = readdir(d)) != NULL) {
if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
continue;
if (dir->d_type == DT_DIR) {
res = 0;
break;
} else if (dir->d_type == DT_UNKNOWN) {
char path[PATH_MAX];
struct stat st;
sprintf(path, "%s/%s", fpath, dir->d_name);
if (stat(path, &st))
break;
if (S_ISDIR(st.st_mode)) {
res = 0;
break;
}
}
}
closedir(d);
return res;
}
static int is_json_file(const char *name)
{
const char *suffix;
if (strlen(name) < 5)
return 0;
suffix = name + strlen(name) - 5;
if (strncmp(suffix, ".json", 5) == 0)
return 1;
return 0;
}
static int preprocess_arch_std_files(const char *fpath, const struct stat *sb,
int typeflag, struct FTW *ftwbuf)
{
int level = ftwbuf->level;
int is_file = typeflag == FTW_F;
if (level == 1 && is_file && is_json_file(fpath))
return json_events(fpath, save_arch_std_events, (void *)sb);
return 0;
}
static int process_one_file(const char *fpath, const struct stat *sb,
int typeflag, struct FTW *ftwbuf)
{
char *tblname, *bname;
int is_dir = typeflag == FTW_D;
int is_file = typeflag == FTW_F;
int level = ftwbuf->level;
int err = 0;
if (level >= 2 && is_dir) {
int count = 0;
/*
* For level 2 directory, bname will include parent name,
* like vendor/platform. So search back from platform dir
* to find this.
* Something similar for level 3 directory, but we're a PMU
* category folder, like vendor/platform/cpu.
*/
bname = (char *) fpath + ftwbuf->base - 2;
for (;;) {
if (*bname == '/')
count++;
if (count == level - 1)
break;
bname--;
}
bname++;
} else
bname = (char *) fpath + ftwbuf->base;
pr_debug("%s %d %7jd %-20s %s\n",
is_file ? "f" : is_dir ? "d" : "x",
level, sb->st_size, bname, fpath);
/* base dir or too deep */
if (level == 0 || level > 4)
return 0;
/* model directory, reset topic */
if ((level == 1 && is_dir && is_leaf_dir(fpath)) ||
(level >= 2 && is_dir && is_leaf_dir(fpath))) {
if (close_table)
print_events_table_suffix(eventsfp);
/*
* Drop file name suffix. Replace hyphens with underscores.
* Fail if file name contains any alphanum characters besides
* underscores.
*/
tblname = file_name_to_table_name(bname);
if (!tblname) {
pr_info("%s: Error determining table name for %s\n", prog,
bname);
return -1;
}
if (is_sys_dir(bname)) {
struct sys_event_table *sys_event_table;
sys_event_table = malloc(sizeof(*sys_event_table));
if (!sys_event_table)
return -1;
sys_event_table->soc_id = strdup(tblname);
if (!sys_event_table->soc_id) {
free(sys_event_table);
return -1;
}
list_add_tail(&sys_event_table->list,
&sys_event_tables);
}
print_events_table_prefix(eventsfp, tblname);
return 0;
}
/*
* Save the mapfile name for now. We will process mapfile
* after processing all JSON files (so we can write out the
* mapping table after all PMU events tables).
*
*/
if (level == 1 && is_file) {
if (!strcmp(bname, "mapfile.csv")) {
mapfile = strdup(fpath);
return 0;
}
if (is_json_file(bname))
pr_debug("%s: ArchStd json is preprocessed %s\n", prog, fpath);
else
pr_info("%s: Ignoring file %s\n", prog, fpath);
return 0;
}
/*
* If the file name does not have a .json extension,
* ignore it. It could be a readme.txt for instance.
*/
if (is_file) {
if (!is_json_file(bname)) {
pr_info("%s: Ignoring file without .json suffix %s\n", prog,
fpath);
return 0;
}
}
if (level > 1 && add_topic(bname))
return -ENOMEM;
/*
* Assume all other files are JSON files.
*
* If mapfile refers to 'power7_core.json', we create a table
* named 'power7_core'. Any inconsistencies between the mapfile
* and directory tree could result in build failure due to table
* names not being found.
*
* At least for now, be strict with processing JSON file names.
* i.e. if JSON file name cannot be mapped to C-style table name,
* fail.
*/
if (is_file) {
struct perf_entry_data data = {
.topic = get_topic(),
.outfp = eventsfp,
};
err = json_events(fpath, print_events_table_entry, &data);
free(data.topic);
}
return err;
}
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
/*
* Starting in directory 'start_dirname', find the "mapfile.csv" and
* the set of JSON files for the architecture 'arch'.
*
* From each JSON file, create a C-style "PMU events table" from the
* JSON file (see struct pmu_event).
*
* From the mapfile, create a mapping between the CPU revisions and
* PMU event tables (see struct pmu_events_map).
*
* Write out the PMU events tables and the mapping table to pmu-event.c.
*/
int main(int argc, char *argv[])
{
int rc, ret = 0, empty_map = 0;
int maxfds;
char ldirname[PATH_MAX];
const char *arch;
const char *output_file;
const char *start_dirname;
const char *err_string_ext = "";
struct stat stbuf;
prog = basename(argv[0]);
if (argc < 4) {
pr_err("Usage: %s <arch> <starting_dir> <output_file>\n", prog);
return 1;
}
arch = argv[1];
start_dirname = argv[2];
output_file = argv[3];
if (argc > 4)
verbose = atoi(argv[4]);
eventsfp = fopen(output_file, "w");
if (!eventsfp) {
pr_err("%s Unable to create required file %s (%s)\n",
prog, output_file, strerror(errno));
return 2;
}
sprintf(ldirname, "%s/%s", start_dirname, arch);
/* If architecture does not have any event lists, bail out */
if (stat(ldirname, &stbuf) < 0) {
pr_info("%s: Arch %s has no PMU event lists\n", prog, arch);
empty_map = 1;
goto err_close_eventsfp;
}
/* Include pmu-events.h first */
fprintf(eventsfp, "#include \"pmu-events/pmu-events.h\"\n");
/*
* The mapfile allows multiple CPUids to point to the same JSON file,
* so, not sure if there is a need for symlinks within the pmu-events
* directory.
*
* For now, treat symlinks of JSON files as regular files and create
* separate tables for each symlink (presumably, each symlink refers
* to specific version of the CPU).
*/
maxfds = get_maxfds();
rc = nftw(ldirname, preprocess_arch_std_files, maxfds, 0);
if (rc)
goto err_processing_std_arch_event_dir;
rc = nftw(ldirname, process_one_file, maxfds, 0);
if (rc)
goto err_processing_dir;
sprintf(ldirname, "%s/test", start_dirname);
rc = nftw(ldirname, preprocess_arch_std_files, maxfds, 0);
if (rc)
goto err_processing_std_arch_event_dir;
rc = nftw(ldirname, process_one_file, maxfds, 0);
if (rc)
goto err_processing_dir;
if (close_table)
print_events_table_suffix(eventsfp);
if (!mapfile) {
pr_info("%s: No CPU->JSON mapping?\n", prog);
empty_map = 1;
goto err_close_eventsfp;
}
rc = process_mapfile(eventsfp, mapfile);
if (rc) {
pr_info("%s: Error processing mapfile %s\n", prog, mapfile);
/* Make build fail */
ret = 1;
goto err_close_eventsfp;
}
rc = process_system_event_tables(eventsfp);
fclose(eventsfp);
if (rc) {
ret = 1;
goto err_out;
}
free_arch_std_events();
free_sys_event_tables();
free(mapfile);
return 0;
err_processing_std_arch_event_dir:
err_string_ext = " for std arch event";
err_processing_dir:
if (verbose) {
pr_info("%s: Error walking file tree %s%s\n", prog, ldirname,
err_string_ext);
empty_map = 1;
} else if (rc < 0) {
ret = 1;
} else {
empty_map = 1;
}
err_close_eventsfp:
fclose(eventsfp);
if (empty_map)
create_empty_mapping(output_file);
err_out:
free_arch_std_events();
free_sys_event_tables();
free(mapfile);
return ret;
}
tools/perf/pmu-events/jsmn.c deleted 100644 → 0
View file @ 00facc76
/*
* Copyright (c) 2010 Serge A. Zaitsev
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* Slightly modified by AK to not assume 0 terminated input.
*/
#include <stdlib.h>
#include "jsmn.h"
#define JSMN_STRICT
/*
* Allocates a fresh unused token from the token pool.
*/
static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
jsmntok_t *tokens, size_t num_tokens)
{
jsmntok_t *tok;
if ((unsigned)parser->toknext >= num_tokens)
return NULL;
tok = &tokens[parser->toknext++];
tok->start = tok->end = -1;
tok->size = 0;
return tok;
}
/*
* Fills token type and boundaries.
*/
static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
int start, int end)
{
token->type = type;
token->start = start;
token->end = end;
token->size = 0;
}
/*
* Fills next available token with JSON primitive.
*/
static jsmnerr_t jsmn_parse_primitive(jsmn_parser *parser, const char *js,
size_t len,
jsmntok_t *tokens, size_t num_tokens)
{
jsmntok_t *token;
int start;
start = parser->pos;
for (; parser->pos < len; parser->pos++) {
switch (js[parser->pos]) {
#ifndef JSMN_STRICT
/*
* In strict mode primitive must be followed by ","
* or "}" or "]"
*/
case ':':
#endif
case '\t':
case '\r':
case '\n':
case ' ':
case ',':
case ']':
case '}':
goto found;
default:
break;
}
if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
#ifdef JSMN_STRICT
/*
* In strict mode primitive must be followed by a
* comma/object/array.
*/
parser->pos = start;
return JSMN_ERROR_PART;
#endif
found:
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
parser->pos--; /* parent sees closing brackets */
return JSMN_SUCCESS;
}
/*
* Fills next token with JSON string.
*/
static jsmnerr_t jsmn_parse_string(jsmn_parser *parser, const char *js,
size_t len,
jsmntok_t *tokens, size_t num_tokens)
{
jsmntok_t *token;
int start = parser->pos;
/* Skip starting quote */
parser->pos++;
for (; parser->pos < len; parser->pos++) {
char c = js[parser->pos];
/* Quote: end of string */
if (c == '\"') {
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_STRING, start+1,
parser->pos);
return JSMN_SUCCESS;
}
/* Backslash: Quoted symbol expected */
if (c == '\\') {
parser->pos++;
switch (js[parser->pos]) {
/* Allowed escaped symbols */
case '\"':
case '/':
case '\\':
case 'b':
case 'f':
case 'r':
case 'n':
case 't':
break;
/* Allows escaped symbol \uXXXX */
case 'u':
/* TODO */
break;
/* Unexpected symbol */
default:
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
}
parser->pos = start;
return JSMN_ERROR_PART;
}
/*
* Parse JSON string and fill tokens.
*/
jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
jsmntok_t *tokens, unsigned int num_tokens)
{
jsmnerr_t r;
int i;
jsmntok_t *token;
#ifdef JSMN_STRICT
/*
* Keeps track of whether a new object/list/primitive is expected. New items are only
* allowed after an opening brace, comma or colon. A closing brace after a comma is not
* valid JSON.
*/
int expecting_item = 1;
#endif
for (; parser->pos < len; parser->pos++) {
char c;
jsmntype_t type;
c = js[parser->pos];
switch (c) {
case '{':
case '[':
#ifdef JSMN_STRICT
if (!expecting_item)
return JSMN_ERROR_INVAL;
#endif
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL)
return JSMN_ERROR_NOMEM;
if (parser->toksuper != -1)
tokens[parser->toksuper].size++;
token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
token->start = parser->pos;
parser->toksuper = parser->toknext - 1;
break;
case '}':
case ']':
#ifdef JSMN_STRICT
if (expecting_item)
return JSMN_ERROR_INVAL;
#endif
type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
for (i = parser->toknext - 1; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
if (token->type != type)
return JSMN_ERROR_INVAL;
parser->toksuper = -1;
token->end = parser->pos + 1;
break;
}
}
/* Error if unmatched closing bracket */
if (i == -1)
return JSMN_ERROR_INVAL;
for (; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
parser->toksuper = i;
break;
}
}
break;
case '\"':
#ifdef JSMN_STRICT
if (!expecting_item)
return JSMN_ERROR_INVAL;
expecting_item = 0;
#endif
r = jsmn_parse_string(parser, js, len, tokens,
num_tokens);
if (r < 0)
return r;
if (parser->toksuper != -1)
tokens[parser->toksuper].size++;
break;
case '\t':
case '\r':
case '\n':
case ' ':
break;
#ifdef JSMN_STRICT
case ':':
case ',':
if (expecting_item)
return JSMN_ERROR_INVAL;
expecting_item = 1;
break;
/*
* In strict mode primitives are:
* numbers and booleans.
*/
case '-':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case 't':
case 'f':
case 'n':
#else
case ':':
case ',':
break;
/*
* In non-strict mode every unquoted value
* is a primitive.
*/
/*FALL THROUGH */
default:
#endif
#ifdef JSMN_STRICT
if (!expecting_item)
return JSMN_ERROR_INVAL;
expecting_item = 0;
#endif
r = jsmn_parse_primitive(parser, js, len, tokens,
num_tokens);
if (r < 0)
return r;
if (parser->toksuper != -1)
tokens[parser->toksuper].size++;
break;
#ifdef JSMN_STRICT
/* Unexpected char in strict mode */
default:
return JSMN_ERROR_INVAL;
#endif
}
}
for (i = parser->toknext - 1; i >= 0; i--) {
/* Unmatched opened object or array */
if (tokens[i].start != -1 && tokens[i].end == -1)
return JSMN_ERROR_PART;
}
#ifdef JSMN_STRICT
return expecting_item ? JSMN_ERROR_INVAL : JSMN_SUCCESS;
#else
return JSMN_SUCCESS;
#endif
}
/*
* Creates a new parser based over a given buffer with an array of tokens
* available.
*/
void jsmn_init(jsmn_parser *parser)
{
parser->pos = 0;
parser->toknext = 0;
parser->toksuper = -1;
}
const char *jsmn_strerror(jsmnerr_t err)
{
switch (err) {
case JSMN_ERROR_NOMEM:
return "No enough tokens";
case JSMN_ERROR_INVAL:
return "Invalid character inside JSON string";
case JSMN_ERROR_PART:
return "The string is not a full JSON packet, more bytes expected";
case JSMN_SUCCESS:
return "Success";
default:
return "Unknown json error";
}
}
tools/perf/pmu-events/jsmn.h deleted 100644 → 0
View file @ 00facc76
/* SPDX-License-Identifier: MIT */
#ifndef __JSMN_H_
#define __JSMN_H_
/*
* JSON type identifier. Basic types are:
* o Object
* o Array
* o String
* o Other primitive: number, boolean (true/false) or null
*/
typedef enum {
JSMN_PRIMITIVE = 0,
JSMN_OBJECT = 1,
JSMN_ARRAY = 2,
JSMN_STRING = 3
} jsmntype_t;
typedef enum {
/* Not enough tokens were provided */
JSMN_ERROR_NOMEM = -1,
/* Invalid character inside JSON string */
JSMN_ERROR_INVAL = -2,
/* The string is not a full JSON packet, more bytes expected */
JSMN_ERROR_PART = -3,
/* Everything was fine */
JSMN_SUCCESS = 0
} jsmnerr_t;
/*
* JSON token description.
* @param type type (object, array, string etc.)
* @param start start position in JSON data string
* @param end end position in JSON data string
*/
typedef struct {
jsmntype_t type;
int start;
int end;
int size;
} jsmntok_t;
/*
* JSON parser. Contains an array of token blocks available. Also stores
* the string being parsed now and current position in that string
*/
typedef struct {
unsigned int pos; /* offset in the JSON string */
int toknext; /* next token to allocate */
int toksuper; /* superior token node, e.g parent object or array */
} jsmn_parser;
/*
* Create JSON parser over an array of tokens
*/
void jsmn_init(jsmn_parser *parser);
/*
* Run JSON parser. It parses a JSON data string into and array of tokens,
* each describing a single JSON object.
*/
jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js,
size_t len,
jsmntok_t *tokens, unsigned int num_tokens);
const char *jsmn_strerror(jsmnerr_t err);
#endif /* __JSMN_H_ */
tools/perf/pmu-events/json.c deleted 100644 → 0
View file @ 00facc76
/* Parse JSON files using the JSMN parser. */
/*
* Copyright (c) 2014, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include "jsmn.h"
#include "json.h"
#include <linux/kernel.h>
static char *mapfile(const char *fn, size_t *size)
{
unsigned ps = sysconf(_SC_PAGESIZE);
struct stat st;
char *map = NULL;
int err;
int fd = open(fn, O_RDONLY);
if (fd < 0 && verbose > 0 && fn) {
pr_err("Error opening events file '%s': %s\n", fn,
strerror(errno));
}
if (fd < 0)
return NULL;
err = fstat(fd, &st);
if (err < 0)
goto out;
*size = st.st_size;
map = mmap(NULL,
(st.st_size + ps - 1) & ~(ps - 1),
PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED)
map = NULL;
out:
close(fd);
return map;
}
static void unmapfile(char *map, size_t size)
{
unsigned ps = sysconf(_SC_PAGESIZE);
munmap(map, roundup(size, ps));
}
/*
* Parse json file using jsmn. Return array of tokens,
* and mapped file. Caller needs to free array.
*/
jsmntok_t *parse_json(const char *fn, char **map, size_t *size, int *len)
{
jsmn_parser parser;
jsmntok_t *tokens;
jsmnerr_t res;
unsigned sz;
*map = mapfile(fn, size);
if (!*map)
return NULL;
/* Heuristic */
sz = *size * 16;
tokens = malloc(sz);
if (!tokens)
goto error;
jsmn_init(&parser);
res = jsmn_parse(&parser, *map, *size, tokens,
sz / sizeof(jsmntok_t));
if (res != JSMN_SUCCESS) {
pr_err("%s: json error %s\n", fn, jsmn_strerror(res));
goto error_free;
}
if (len)
*len = parser.toknext;
return tokens;
error_free:
free(tokens);
error:
unmapfile(*map, *size);
return NULL;
}
void free_json(char *map, size_t size, jsmntok_t *tokens)
{
free(tokens);
unmapfile(map, size);
}
static int countchar(char *map, char c, int end)
{
int i;
int count = 0;
for (i = 0; i < end; i++)
if (map[i] == c)
count++;
return count;
}
/* Return line number of a jsmn token */
int json_line(char *map, jsmntok_t *t)
{
return countchar(map, '\n', t->start) + 1;
}
static const char * const jsmn_types[] = {
[JSMN_PRIMITIVE] = "primitive",
[JSMN_ARRAY] = "array",
[JSMN_OBJECT] = "object",
[JSMN_STRING] = "string"
};
#define LOOKUP(a, i) ((i) < (sizeof(a)/sizeof(*(a))) ? ((a)[i]) : "?")
/* Return type name of a jsmn token */
const char *json_name(jsmntok_t *t)
{
return LOOKUP(jsmn_types, t->type);
}
int json_len(jsmntok_t *t)
{
return t->end - t->start;
}
/* Is string t equal to s? */
int json_streq(char *map, jsmntok_t *t, const char *s)
{
unsigned len = json_len(t);
return len == strlen(s) && !strncasecmp(map + t->start, s, len);
}
tools/perf/pmu-events/json.h deleted 100644 → 0
View file @ 00facc76
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef JSON_H
#define JSON_H 1
#include "jsmn.h"
jsmntok_t *parse_json(const char *fn, char **map, size_t *size, int *len);
void free_json(char *map, size_t size, jsmntok_t *tokens);
int json_line(char *map, jsmntok_t *t);
const char *json_name(jsmntok_t *t);
int json_streq(char *map, jsmntok_t *t, const char *s);
int json_len(jsmntok_t *t);
extern int verbose;
#include <stdbool.h>
extern int eprintf(int level, int var, const char *fmt, ...);
#define pr_fmt(fmt) fmt
#define pr_err(fmt, ...) \
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info(fmt, ...) \
eprintf(1, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug(fmt, ...) \
eprintf(2, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#ifndef roundup
#define roundup(x, y) ( \
{ \
const typeof(y) __y = y; \
(((x) + (__y - 1)) / __y) * __y; \
} \
)
#endif
#endif
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