112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
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/*-
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* Copyright (c) 2005-2007, Joseph Koshy
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* Copyright (c) 2007 The FreeBSD Foundation
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* All rights reserved.
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*
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* Portions of this software were developed by A. Joseph Koshy under
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* sponsorship from the FreeBSD Foundation and Google, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Transform a hwpmc(4) log into human readable form, and into
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* gprof(1) compatible profiles.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/endian.h>
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#include <sys/gmon.h>
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#include <sys/imgact_aout.h>
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#include <sys/imgact_elf.h>
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#include <sys/mman.h>
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#include <sys/pmc.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <netinet/in.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <gelf.h>
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#include <libgen.h>
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#include <limits.h>
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#include <netdb.h>
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#include <pmc.h>
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#include <pmclog.h>
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#include <sysexits.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "pmcstat.h"
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#include "pmcstat_log.h"
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#include "pmcpl_annotate.h"
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/*
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* Record a callchain.
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*/
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void
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pmcpl_annotate_process(struct pmcstat_process *pp, struct pmcstat_pmcrecord *pmcr,
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uint32_t nsamples, uintfptr_t *cc, int usermode, uint32_t cpu)
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{
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struct pmcstat_pcmap *map;
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struct pmcstat_symbol *sym;
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uintfptr_t newpc;
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struct pmcstat_image *image;
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(void) pmcr; (void) nsamples; (void) usermode; (void) cpu;
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map = pmcstat_process_find_map(usermode ? pp : pmcstat_kernproc, cc[0]);
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if (map == NULL) {
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/* Unknown offset. */
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pmcstat_stats.ps_samples_unknown_offset++;
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return;
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}
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assert(cc[0] >= map->ppm_lowpc && cc[0] < map->ppm_highpc);
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image = map->ppm_image;
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newpc = cc[0] - (map->ppm_lowpc +
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(image->pi_vaddr - image->pi_start));
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sym = pmcstat_symbol_search(image, newpc);
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if (sym == NULL)
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return;
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fprintf(args.pa_graphfile, "%p %s 0x%jx 0x%jx\n",
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(void *)cc[0],
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pmcstat_string_unintern(sym->ps_name),
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(uintmax_t)(sym->ps_start +
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image->pi_vaddr), (uintmax_t)(sym->ps_end +
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image->pi_vaddr));
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}
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