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49874f6ea3
Kernel changes: Inform hwpmc of executable objects brought into the system by kldload() and mmap(), and of their removal by kldunload() and munmap(). A helper function linker_hwpmc_list_objects() has been added to "sys/kern/kern_linker.c" and is used by hwpmc to retrieve the list of currently loaded kernel modules. The unused `MAPPINGCHANGE' event has been deprecated in favour of separate `MAP_IN' and `MAP_OUT' events; this change reduces space wastage in the log. Bump the hwpmc's ABI version to "2.0.00". Teach hwpmc(4) to handle the map change callbacks. Change the default per-cpu sample buffer size to hold 32 samples (up from 16). Increment __FreeBSD_version. libpmc(3) changes: Update libpmc(3) to deal with the new events in the log file; bring the pmclog(3) manual page in sync with the code. pmcstat(8) changes: Introduce new options to pmcstat(8): "-r" (root fs path), "-M" (mapfile name), "-q"/"-v" (verbosity control). Option "-k" now takes a kernel directory as its argument but will also work with the older invocation syntax. Rework string handling in pmcstat(8) to use an opaque type for interned strings. Clean up ELF parsing code and add support for tracking dynamic object mappings reported by a v2.0.00 hwpmc(4). Report statistics at the end of a log conversion run depending on the requested verbosity level. Reviewed by: jhb, dds (kernel parts of an earlier patch) Tested by: gallatin (earlier patch)
129 lines
4.9 KiB
C
129 lines
4.9 KiB
C
/*-
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* Copyright (c) 2005-2006, Joseph Koshy
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* All rights reserved.
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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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* $FreeBSD$
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*/
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#ifndef _PMCSTAT_H_
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#define _PMCSTAT_H_
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#define FLAG_HAS_PID 0x00000001 /* explicit pid */
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#define FLAG_HAS_WAIT_INTERVAL 0x00000002 /* -w secs */
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#define FLAG_HAS_OUTPUT_LOGFILE 0x00000004 /* -O file or pipe */
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#define FLAG_HAS_COMMANDLINE 0x00000008 /* command */
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#define FLAG_HAS_SAMPLING_PMCS 0x00000010 /* -S or -P */
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#define FLAG_HAS_COUNTING_PMCS 0x00000020 /* -s or -p */
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#define FLAG_HAS_PROCESS_PMCS 0x00000040 /* -P or -p */
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#define FLAG_HAS_SYSTEM_PMCS 0x00000080 /* -S or -s */
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#define FLAG_HAS_PIPE 0x00000100 /* implicit log */
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#define FLAG_READ_LOGFILE 0x00000200 /* -R file */
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#define FLAG_DO_GPROF 0x00000400 /* -g */
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#define FLAG_HAS_SAMPLESDIR 0x00000800 /* -D dir */
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#define FLAG_HAS_KERNELPATH 0x00001000 /* -k kernel */
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#define FLAG_DO_PRINT 0x00002000 /* -o */
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#define DEFAULT_SAMPLE_COUNT 65536
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#define DEFAULT_WAIT_INTERVAL 5.0
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#define DEFAULT_DISPLAY_HEIGHT 23
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#define DEFAULT_BUFFER_SIZE 4096
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#define PRINT_HEADER_PREFIX "# "
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#define READPIPEFD 0
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#define WRITEPIPEFD 1
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#define NPIPEFD 2
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#define PMCSTAT_OPEN_FOR_READ 0
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#define PMCSTAT_OPEN_FOR_WRITE 1
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#define PMCSTAT_DEFAULT_NW_HOST "localhost"
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#define PMCSTAT_DEFAULT_NW_PORT "9000"
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#define PMCSTAT_NHASH 256
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#define PMCSTAT_HASH_MASK 0xFF
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#define PMCSTAT_LDD_COMMAND "/usr/bin/ldd"
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#define PMCSTAT_PRINT_ENTRY(A,T,...) do { \
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fprintf((A)->pa_printfile, "%-8s", T); \
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fprintf((A)->pa_printfile, " " __VA_ARGS__); \
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fprintf((A)->pa_printfile, "\n"); \
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} while (0)
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enum pmcstat_state {
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PMCSTAT_FINISHED = 0,
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PMCSTAT_EXITING = 1,
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PMCSTAT_RUNNING = 2
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};
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struct pmcstat_ev {
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STAILQ_ENTRY(pmcstat_ev) ev_next;
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char *ev_spec; /* event specification */
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char *ev_name; /* (derived) event name */
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enum pmc_mode ev_mode; /* desired mode */
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int ev_count; /* associated count if in sampling mode */
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int ev_cpu; /* specific cpu if requested */
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int ev_flags; /* PMC_F_* */
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int ev_cumulative; /* show cumulative counts */
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int ev_fieldwidth; /* print width */
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int ev_fieldskip; /* #leading spaces */
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pmc_value_t ev_saved; /* saved value for incremental counts */
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pmc_id_t ev_pmcid; /* allocated ID */
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};
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struct pmcstat_args {
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int pa_flags; /* argument flags */
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int pa_required; /* required features */
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int pa_verbosity; /* verbosity level */
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pid_t pa_pid; /* attached to pid */
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FILE *pa_printfile; /* where to send printed output */
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int pa_logfd; /* output log file */
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char *pa_inputpath; /* path to input log */
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char *pa_outputpath; /* path to output log */
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void *pa_logparser; /* log file parser */
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const char *pa_fsroot; /* FS root where executables reside */
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char *pa_kernel; /* pathname of the kernel */
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const char *pa_samplesdir; /* directory for profile files */
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const char *pa_mapfilename;/* mapfile name */
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double pa_interval; /* printing interval in seconds */
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int pa_argc;
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char **pa_argv;
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STAILQ_HEAD(, pmcstat_ev) pa_head;
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} args;
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/* Function prototypes */
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void pmcstat_cleanup(struct pmcstat_args *_a);
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int pmcstat_close_log(struct pmcstat_args *_a);
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void pmcstat_initialize_logging(struct pmcstat_args *_a);
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int pmcstat_open_log(const char *_p, int _mode);
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void pmcstat_print_counters(struct pmcstat_args *_a);
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void pmcstat_print_headers(struct pmcstat_args *_a);
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void pmcstat_print_pmcs(struct pmcstat_args *_a);
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void pmcstat_setup_process(struct pmcstat_args *_a);
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void pmcstat_show_usage(void);
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void pmcstat_shutdown_logging(struct pmcstat_args *_a);
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void pmcstat_start_pmcs(struct pmcstat_args *_a);
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void pmcstat_start_process(struct pmcstat_args *_a);
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int pmcstat_process_log(struct pmcstat_args *_a);
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#endif /* _PMCSTAT_H_ */
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