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-rw-r--r--src/tools/g2/cpel.c470
1 files changed, 470 insertions, 0 deletions
diff --git a/src/tools/g2/cpel.c b/src/tools/g2/cpel.c
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+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2005-2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/vec.h>
+#include <vppinfra/hash.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <time.h>
+#include "cpel.h"
+#include "g2.h"
+
+typedef struct bound_event_ {
+ u32 event_code;
+ u8 *event_str;
+ u8 *datum_str;
+} bound_event_t;
+
+bound_event_t *bound_events;
+
+int widest_track_format=8;
+
+typedef struct bound_track_ {
+ u32 track;
+ u8 *track_str;
+} bound_track_t;
+
+bound_track_t *bound_tracks;
+
+uword *the_strtab_hash; /* (name, base-VA) hash of all string tables */
+uword *the_evtdef_hash; /* (event-id, event-definition) hash */
+uword *the_trackdef_hash; /* (track-id, track-definition) hash */
+u8 *event_strtab; /* event string-table */
+
+void fatal(char *s)
+{
+ fprintf(stderr, "%s", s);
+ exit(1);
+}
+
+typedef enum {
+ PASS1=1,
+ PASS2=2,
+} pass_t;
+
+typedef struct {
+ int (*pass1)(cpel_section_header_t *, int, FILE *);
+ int (*pass2)(cpel_section_header_t *, int, FILE *);
+} section_processor_t;
+
+int bad_section(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ fprintf(ofp, "Bad (type 0) section, skipped...\n");
+ return(0);
+}
+
+int noop_pass(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ return(0);
+}
+
+int strtab_pass1(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ uword *p;
+ u8 *strtab_data_area = (u8 *)(sh+1);
+
+ /* Multiple string tables with the same name are Bad... */
+ p = hash_get_mem(the_strtab_hash, strtab_data_area);
+ if (p) {
+ fprintf(ofp, "Duplicate string table name %s", strtab_data_area);
+ }
+ /*
+ * Looks funny, but we really do want key = first string in the
+ * table, value = address(first string in the table)
+ */
+ hash_set_mem(the_strtab_hash, strtab_data_area, strtab_data_area);
+ if (verbose) {
+ fprintf(ofp, "String Table %s\n", strtab_data_area);
+ }
+ return(0);
+}
+
+int evtdef_pass1(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ int i, nevents;
+ event_definition_section_header_t *edh;
+ event_definition_t *ep;
+ u8 *this_strtab;
+ u32 event_code;
+ uword *p;
+ bound_event_t *bp;
+
+ edh = (event_definition_section_header_t *)(sh+1);
+ nevents = ntohl(edh->number_of_event_definitions);
+
+ if (verbose) {
+ fprintf(ofp, "Event Definition Section: %d definitions\n",
+ nevents);
+ }
+
+ p = hash_get_mem(the_strtab_hash, edh->string_table_name);
+ if (!p) {
+ fprintf(ofp, "Fatal: couldn't find string table\n");
+ return(1);
+ }
+ this_strtab = (u8 *)p[0];
+
+ initialize_events();
+
+ ep = (event_definition_t *)(edh+1);
+
+ for (i = 0; i < nevents; i++) {
+ event_code = ntohl(ep->event);
+ p = hash_get(the_evtdef_hash, event_code);
+ if (p) {
+ fprintf(ofp, "Event %d redefined, retain first definition\n",
+ event_code);
+ continue;
+ }
+ vec_add2(bound_events, bp, 1);
+ bp->event_code = event_code;
+ bp->event_str = this_strtab + ntohl(ep->event_format);
+ bp->datum_str = this_strtab + ntohl(ep->datum_format);
+ hash_set(the_evtdef_hash, event_code, bp - bound_events);
+
+ add_event_from_cpel_file(event_code, (char *) bp->event_str,
+ (char *)bp->datum_str);
+
+ ep++;
+ }
+
+ finalize_events();
+ return (0);
+}
+
+int trackdef_pass1(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ int i, nevents;
+ track_definition_section_header_t *tdh;
+ track_definition_t *tp;
+ u8 *this_strtab;
+ u32 track_code;
+ uword *p;
+ bound_track_t *btp;
+ int track_strlen;
+
+ tdh = (track_definition_section_header_t *)(sh+1);
+ nevents = ntohl(tdh->number_of_track_definitions);
+
+ if (verbose) {
+ fprintf(ofp, "Track Definition Section: %d definitions\n",
+ nevents);
+ }
+
+ p = hash_get_mem(the_strtab_hash, tdh->string_table_name);
+ if (!p) {
+ fprintf(ofp, "Fatal: couldn't find string table\n");
+ return(1);
+ }
+ this_strtab = (u8 *)p[0];
+
+ tp = (track_definition_t *)(tdh+1);
+
+ for (i = 0; i < nevents; i++) {
+ track_code = ntohl(tp->track);
+ p = hash_get(the_trackdef_hash, track_code);
+ if (p) {
+ fprintf(ofp, "track %d redefined, retain first definition\n",
+ track_code);
+ continue;
+ }
+ vec_add2(bound_tracks, btp, 1);
+ btp->track = track_code;
+ btp->track_str = this_strtab + ntohl(tp->track_format);
+ hash_set(the_trackdef_hash, track_code, btp - bound_tracks);
+
+ track_strlen = strlen((char *)btp->track_str);
+ if (track_strlen > widest_track_format)
+ widest_track_format = track_strlen;
+ tp++;
+ }
+ return (0);
+}
+
+int unsupported_pass (cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ if (verbose) {
+ fprintf(ofp, "Unsupported type %d section\n",
+ ntohl(sh->section_type));
+ }
+ return(0);
+}
+
+int event_pass2(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ event_section_header_t *eh;
+ u32 event_code, track_code, datum;
+ u64 starttime = ~0ULL;
+ int nevents;
+ int i;
+ event_entry_t *ep;
+ u64 now;
+ u64 delta;
+ u32 time0, time1;
+ double d;
+ uword *p;
+
+ eh = (event_section_header_t *)(sh+1);
+ nevents = ntohl(eh->number_of_events);
+ ticks_per_ns = ntohl(eh->clock_ticks_per_second)/1e9;
+ ep = (event_entry_t *)(eh+1);
+
+ p = hash_get_mem(the_strtab_hash, eh->string_table_name);
+ if (!p) {
+ fprintf(ofp, "Fatal: couldn't find string table\n");
+ return(1);
+ }
+ event_strtab = (u8 *)p[0];
+
+ cpel_event_init(nevents);
+
+ for (i = 0; i < nevents; i++) {
+ time0 = ntohl (ep->time[0]);
+ time1 = ntohl (ep->time[1]);
+
+ now = (((u64) time0)<<32) | time1;
+
+ /* Convert from bus ticks to usec */
+ d = now;
+ d /= ticks_per_ns;
+
+ now = d;
+
+ if (starttime == ~0ULL)
+ starttime = now;
+
+ delta = now - starttime;
+
+ /* Delta = time since first event, in usec */
+ event_code = ntohl(ep->event_code);
+ track_code = ntohl(ep->track);
+ datum = ntohl(ep->event_datum);
+
+ add_cpel_event(delta, track_code, event_code, datum);
+
+ ep++;
+ }
+ cpel_event_finalize();
+ return(0);
+}
+
+char *strtab_ref(unsigned long datum)
+{
+ return ((char *)(event_strtab + datum));
+}
+
+/*
+ * Note: If necessary, add passes / columns to this table to
+ * handle section order dependencies.
+ */
+
+section_processor_t processors[CPEL_NUM_SECTION_TYPES+1] =
+{
+ {bad_section, noop_pass}, /* type 0 -- f**ked */
+ {strtab_pass1, noop_pass}, /* type 1 -- STRTAB */
+ {unsupported_pass, noop_pass}, /* type 2 -- SYMTAB */
+ {evtdef_pass1, noop_pass}, /* type 3 -- EVTDEF */
+ {trackdef_pass1, noop_pass}, /* type 4 -- TRACKDEF */
+ {noop_pass, event_pass2}, /* type 5 -- EVENTS */
+};
+
+
+int process_section(cpel_section_header_t *sh, int verbose, FILE *ofp,
+ pass_t pass)
+{
+ u32 type;
+ type = ntohl(sh->section_type);
+ int rv;
+ int (*fp)(cpel_section_header_t *, int, FILE *);
+
+ if (type > CPEL_NUM_SECTION_TYPES) {
+ fprintf(stderr, "Unknown section type %d\n", type);
+ return(1);
+ }
+ switch(pass) {
+ case PASS1:
+ fp = processors[type].pass1;
+ break;
+
+ case PASS2:
+ fp = processors[type].pass2;
+ break;
+
+ default:
+ fprintf(stderr, "Unknown pass %d\n", pass);
+ return(1);
+ }
+
+ rv = (*fp)(sh, verbose, ofp);
+
+ return(rv);
+}
+
+int cpel_dump_file_header(cpel_file_header_t *fh, int verbose, FILE *ofp)
+{
+ time_t file_time;
+
+ if (verbose) {
+ fprintf(ofp, "CPEL file: %s-endian, version %d\n",
+ ((fh->endian_version & CPEL_FILE_LITTLE_ENDIAN) ?
+ "little" : "big"),
+ fh->endian_version & CPEL_FILE_VERSION_MASK);
+
+ file_time = ntohl(fh->file_date);
+
+ fprintf(ofp, "File created %s", ctime(&file_time));
+ }
+
+ return(0);
+}
+
+
+int cpel_process(u8 *cpel, int verbose, FILE *ofp)
+{
+ cpel_file_header_t *fh;
+ cpel_section_header_t *sh;
+ u16 nsections;
+ u32 section_size;
+ int i;
+
+ /* First, the file header */
+ fh = (cpel_file_header_t *)cpel;
+ if (fh->endian_version != CPEL_FILE_VERSION) {
+ if (fh->endian_version & CPEL_FILE_LITTLE_ENDIAN) {
+ fprintf(stderr, "Little endian data format not supported\n");
+ return(1);
+ }
+ fprintf(stderr, "Unsupported file version 0x%x\n",
+ fh->endian_version);
+ return(1);
+ }
+ cpel_dump_file_header(fh, verbose, ofp);
+ nsections = ntohs(fh->nsections);
+
+ /*
+ * Take two passes through the file. PASS1 builds
+ * data structures, PASS2 actually dumps the file.
+ * Just in case the sections are in an unobvious order.
+ */
+ sh = (cpel_section_header_t *)(fh+1);
+ for (i = 0; i < nsections; i++) {
+ section_size = ntohl(sh->data_length);
+
+ if(verbose) {
+ fprintf(ofp, "Section type %d, size %d\n", ntohl(sh->section_type),
+ section_size);
+ }
+
+ if(process_section(sh, verbose, ofp, PASS1))
+ return(1);
+
+ sh++;
+ sh = (cpel_section_header_t *)(((u8 *)sh)+section_size);
+ }
+
+ sh = (cpel_section_header_t *)(fh+1);
+ for (i = 0; i < nsections; i++) {
+ if(process_section(sh, verbose, ofp, PASS2))
+ return(1);
+ section_size = ntohl(sh->data_length);
+ sh++;
+ sh = (cpel_section_header_t *)(((u8 *)sh)+section_size);
+ }
+
+
+ return(0);
+}
+
+/*
+ * read_cpel_file
+ */
+int read_cpel_file(char *cpel_file)
+{
+ int verbose = 0;
+ int rv;
+ static u8 *cpel;
+ static unsigned long size;
+ static FILE *ofp;
+
+ if (cpel) {
+ unmapfile((char *)cpel, size);
+ hash_free(the_strtab_hash);
+ the_strtab_hash = 0;
+ hash_free(the_evtdef_hash);
+ the_evtdef_hash = 0;
+ hash_free(the_trackdef_hash);
+ the_trackdef_hash = 0;
+ }
+
+ cpel = (u8 *)mapfile((char *)cpel_file, &size);
+ if (cpel == 0) {
+ fprintf(stderr, "Couldn't map %s...\n", cpel_file);
+ exit(1);
+ }
+
+ if (ofp == NULL) {
+ ofp = fdopen(2, "w");
+ if (ofp == NULL) {
+ fprintf(stderr, "Couldn't fdopen(2)?\n");
+ exit(1);
+ }
+ }
+
+ the_strtab_hash = hash_create_string (0, sizeof (uword));
+ the_evtdef_hash = hash_create (0, sizeof (uword));
+ the_trackdef_hash = hash_create (0, sizeof (uword));
+
+ rv = cpel_process(cpel, verbose, ofp);
+
+ set_pid_ax_width(8*widest_track_format);
+
+ return(rv);
+}
+
+static bound_track_t generic_hex_track = {0, (u8 *) "0x%08x"};
+static bound_track_t generic_decimal_track = {0, (u8 *) "%8ld"};
+
+/*
+ * get_track_label
+ */
+char *get_track_label(unsigned long track)
+{
+ uword *p;
+ bound_track_t *tp;
+
+ p = hash_get(the_trackdef_hash, track);
+ if (p) {
+ tp = &bound_tracks[p[0]];
+ } else {
+ if (track > 65535)
+ tp = &generic_hex_track;
+ else
+ tp = &generic_decimal_track;
+ }
+ return((char *)tp->track_str);
+}