mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
eb707d6039
will be spread as small value and then filtered by the threshold. As a first step solution display the number of event that cannot be resolved as a valid function location. MFC after: 1week
200 lines
7.0 KiB
C
200 lines
7.0 KiB
C
/*-
|
|
* Copyright (c) 2005-2007, Joseph Koshy
|
|
* Copyright (c) 2007 The FreeBSD Foundation
|
|
* Copyright (c) 2009, Fabien Thomas
|
|
* All rights reserved.
|
|
*
|
|
* Portions of this software were developed by A. Joseph Koshy under
|
|
* sponsorship from the FreeBSD Foundation and Google, Inc.
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _PMCSTAT_LOG_H_
|
|
#define _PMCSTAT_LOG_H_
|
|
|
|
typedef const void *pmcstat_interned_string;
|
|
|
|
/*
|
|
* A 'pmcstat_process' structure models processes. Each process is
|
|
* associated with a set of pmcstat_pcmap structures that map
|
|
* addresses inside it to executable objects. This set is implemented
|
|
* as a list, kept sorted in ascending order of mapped addresses.
|
|
*
|
|
* 'pp_pid' holds the pid of the process. When a process exits, the
|
|
* 'pp_isactive' field is set to zero, but the process structure is
|
|
* not immediately reclaimed because there may still be samples in the
|
|
* log for this process.
|
|
*/
|
|
|
|
struct pmcstat_process {
|
|
LIST_ENTRY(pmcstat_process) pp_next; /* hash-next */
|
|
pid_t pp_pid; /* associated pid */
|
|
int pp_isactive; /* whether active */
|
|
uintfptr_t pp_entryaddr; /* entry address */
|
|
TAILQ_HEAD(,pmcstat_pcmap) pp_map; /* address range map */
|
|
};
|
|
extern LIST_HEAD(pmcstat_process_hash_list, pmcstat_process) pmcstat_process_hash[PMCSTAT_NHASH];
|
|
|
|
/*
|
|
* A 'pmcstat_image' structure describes an executable program on
|
|
* disk. 'pi_execpath' is a cookie representing the pathname of
|
|
* the executable. 'pi_start' and 'pi_end' are the least and greatest
|
|
* virtual addresses for the text segments in the executable.
|
|
* 'pi_gmonlist' contains a linked list of gmon.out files associated
|
|
* with this image.
|
|
*/
|
|
|
|
enum pmcstat_image_type {
|
|
PMCSTAT_IMAGE_UNKNOWN = 0, /* never looked at the image */
|
|
PMCSTAT_IMAGE_INDETERMINABLE, /* can't tell what the image is */
|
|
PMCSTAT_IMAGE_ELF32, /* ELF 32 bit object */
|
|
PMCSTAT_IMAGE_ELF64, /* ELF 64 bit object */
|
|
PMCSTAT_IMAGE_AOUT /* AOUT object */
|
|
};
|
|
|
|
struct pmcstat_image {
|
|
LIST_ENTRY(pmcstat_image) pi_next; /* hash link */
|
|
TAILQ_ENTRY(pmcstat_image) pi_lru; /* LRU list */
|
|
pmcstat_interned_string pi_execpath; /* cookie */
|
|
pmcstat_interned_string pi_samplename; /* sample path name */
|
|
pmcstat_interned_string pi_fullpath; /* path to FS object */
|
|
pmcstat_interned_string pi_name; /* display name */
|
|
|
|
enum pmcstat_image_type pi_type; /* executable type */
|
|
|
|
/*
|
|
* Executables have pi_start and pi_end; these are zero
|
|
* for shared libraries.
|
|
*/
|
|
uintfptr_t pi_start; /* start address (inclusive) */
|
|
uintfptr_t pi_end; /* end address (exclusive) */
|
|
uintfptr_t pi_entry; /* entry address */
|
|
uintfptr_t pi_vaddr; /* virtual address where loaded */
|
|
int pi_isdynamic; /* whether a dynamic object */
|
|
int pi_iskernelmodule;
|
|
pmcstat_interned_string pi_dynlinkerpath; /* path in .interp */
|
|
|
|
/* All symbols associated with this object. */
|
|
struct pmcstat_symbol *pi_symbols;
|
|
size_t pi_symcount;
|
|
|
|
/* Handle to addr2line for this image. */
|
|
FILE *pi_addr2line;
|
|
|
|
/*
|
|
* Plugins private data
|
|
*/
|
|
|
|
/* gprof:
|
|
* An image can be associated with one or more gmon.out files;
|
|
* one per PMC.
|
|
*/
|
|
LIST_HEAD(,pmcstat_gmonfile) pi_gmlist;
|
|
};
|
|
extern LIST_HEAD(pmcstat_image_hash_list, pmcstat_image) pmcstat_image_hash[PMCSTAT_NHASH];
|
|
|
|
/*
|
|
* A 'pmcstat_pcmap' structure maps a virtual address range to an
|
|
* underlying 'pmcstat_image' descriptor.
|
|
*/
|
|
struct pmcstat_pcmap {
|
|
TAILQ_ENTRY(pmcstat_pcmap) ppm_next;
|
|
uintfptr_t ppm_lowpc;
|
|
uintfptr_t ppm_highpc;
|
|
struct pmcstat_image *ppm_image;
|
|
};
|
|
|
|
/*
|
|
* Each function symbol tracked by pmcstat(8).
|
|
*/
|
|
|
|
struct pmcstat_symbol {
|
|
pmcstat_interned_string ps_name;
|
|
uint64_t ps_start;
|
|
uint64_t ps_end;
|
|
};
|
|
|
|
/*
|
|
* 'pmcstat_pmcrecord' is a mapping from PMC ids to human-readable
|
|
* names.
|
|
*/
|
|
|
|
struct pmcstat_pmcrecord {
|
|
LIST_ENTRY(pmcstat_pmcrecord) pr_next;
|
|
pmc_id_t pr_pmcid;
|
|
int pr_pmcin;
|
|
pmcstat_interned_string pr_pmcname;
|
|
int pr_samples;
|
|
int pr_dubious_frames;
|
|
struct pmcstat_pmcrecord *pr_merge;
|
|
};
|
|
extern LIST_HEAD(pmcstat_pmcs, pmcstat_pmcrecord) pmcstat_pmcs; /* PMC list */
|
|
|
|
/*
|
|
* Misc. statistics
|
|
*/
|
|
struct pmcstat_stats {
|
|
int ps_exec_aout; /* # a.out executables seen */
|
|
int ps_exec_elf; /* # elf executables seen */
|
|
int ps_exec_errors; /* # errors processing executables */
|
|
int ps_exec_indeterminable; /* # unknown executables seen */
|
|
int ps_samples_total; /* total number of samples processed */
|
|
int ps_samples_skipped; /* #samples filtered out for any reason */
|
|
int ps_samples_unknown_offset; /* #samples of rank 0 not in a map */
|
|
int ps_samples_indeterminable; /* #samples in indeterminable images */
|
|
int ps_samples_unknown_function;/* #samples with unknown function at offset */
|
|
int ps_callchain_dubious_frames;/* #dubious frame pointers seen */
|
|
};
|
|
extern struct pmcstat_stats pmcstat_stats; /* statistics */
|
|
|
|
extern struct pmcstat_process *pmcstat_kernproc; /* kernel 'process' */
|
|
|
|
extern int pmcstat_npmcs; /* PMC count. */
|
|
|
|
/*
|
|
* Top mode global options.
|
|
*/
|
|
float pmcstat_threshold; /* Threshold to filter node. */
|
|
int pmcstat_pmcinfilter; /* PMC index displayed. */
|
|
|
|
/* Function prototypes */
|
|
const char *pmcstat_pmcid_to_name(pmc_id_t _pmcid);
|
|
const char *pmcstat_pmcindex_to_name(int pmcin);
|
|
struct pmcstat_pmcrecord *pmcstat_pmcindex_to_pmcr(int pmcin);
|
|
struct pmcstat_pcmap *pmcstat_process_find_map(struct pmcstat_process *_p,
|
|
uintfptr_t _pc);
|
|
struct pmcstat_symbol *pmcstat_symbol_search(struct pmcstat_image *image,
|
|
uintfptr_t addr);
|
|
const char *pmcstat_string_unintern(pmcstat_interned_string _is);
|
|
pmcstat_interned_string pmcstat_string_intern(const char *_s);
|
|
void pmcstat_image_determine_type(struct pmcstat_image *_image);
|
|
pmcstat_interned_string pmcstat_string_lookup(const char *_s);
|
|
int pmcstat_image_addr2line(struct pmcstat_image *image, uintfptr_t addr,
|
|
char *sourcefile, size_t sourcefile_len, unsigned *sourceline,
|
|
char *funcname, size_t funcname_len);
|
|
|
|
#endif /* _PMCSTAT_LOG_H_ */
|
|
|