1 /*- 2 * Copyright (c) 2005-2007 Joseph Koshy 3 * Copyright (c) 2007 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by A. Joseph Koshy under 7 * sponsorship from the FreeBSD Foundation and Google, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #ifndef _PMCLOG_H_ 34 #define _PMCLOG_H_ 35 36 #include <sys/pmclog.h> 37 38 enum pmclog_state { 39 PMCLOG_OK, 40 PMCLOG_EOF, 41 PMCLOG_REQUIRE_DATA, 42 PMCLOG_ERROR 43 }; 44 45 struct pmclog_ev_callchain { 46 uint32_t pl_pid; 47 uint32_t pl_pmcid; 48 uint32_t pl_cpuflags; 49 uint32_t pl_npc; 50 uintfptr_t pl_pc[PMC_CALLCHAIN_DEPTH_MAX]; 51 }; 52 53 struct pmclog_ev_dropnotify { 54 }; 55 56 struct pmclog_ev_closelog { 57 }; 58 59 struct pmclog_ev_initialize { 60 uint32_t pl_version; 61 uint32_t pl_arch; 62 }; 63 64 struct pmclog_ev_map_in { 65 pid_t pl_pid; 66 uintfptr_t pl_start; 67 char pl_pathname[PATH_MAX]; 68 }; 69 70 struct pmclog_ev_map_out { 71 pid_t pl_pid; 72 uintfptr_t pl_start; 73 uintfptr_t pl_end; 74 }; 75 76 struct pmclog_ev_pcsample { 77 uintfptr_t pl_pc; 78 pid_t pl_pid; 79 pmc_id_t pl_pmcid; 80 uint32_t pl_usermode; 81 }; 82 83 struct pmclog_ev_pmcallocate { 84 uint32_t pl_event; 85 const char * pl_evname; 86 uint32_t pl_flags; 87 pmc_id_t pl_pmcid; 88 }; 89 90 struct pmclog_ev_pmcattach { 91 pmc_id_t pl_pmcid; 92 pid_t pl_pid; 93 char pl_pathname[PATH_MAX]; 94 }; 95 96 struct pmclog_ev_pmcdetach { 97 pmc_id_t pl_pmcid; 98 pid_t pl_pid; 99 }; 100 101 struct pmclog_ev_proccsw { 102 pid_t pl_pid; 103 pmc_id_t pl_pmcid; 104 pmc_value_t pl_value; 105 }; 106 107 struct pmclog_ev_procexec { 108 pid_t pl_pid; 109 pmc_id_t pl_pmcid; 110 uintfptr_t pl_entryaddr; 111 char pl_pathname[PATH_MAX]; 112 }; 113 114 struct pmclog_ev_procexit { 115 uint32_t pl_pid; 116 pmc_id_t pl_pmcid; 117 pmc_value_t pl_value; 118 }; 119 120 struct pmclog_ev_procfork { 121 pid_t pl_oldpid; 122 pid_t pl_newpid; 123 }; 124 125 struct pmclog_ev_sysexit { 126 pid_t pl_pid; 127 }; 128 129 struct pmclog_ev_userdata { 130 uint32_t pl_userdata; 131 }; 132 133 struct pmclog_ev { 134 enum pmclog_state pl_state; /* state after 'get_event()' */ 135 off_t pl_offset; /* byte offset in stream */ 136 size_t pl_count; /* count of records so far */ 137 struct timespec pl_ts; /* log entry timestamp */ 138 enum pmclog_type pl_type; /* type of log entry */ 139 union { /* log entry data */ 140 struct pmclog_ev_callchain pl_cc; 141 struct pmclog_ev_closelog pl_cl; 142 struct pmclog_ev_dropnotify pl_dn; 143 struct pmclog_ev_initialize pl_i; 144 struct pmclog_ev_map_in pl_mi; 145 struct pmclog_ev_map_out pl_mo; 146 struct pmclog_ev_pcsample pl_s; 147 struct pmclog_ev_pmcallocate pl_a; 148 struct pmclog_ev_pmcattach pl_t; 149 struct pmclog_ev_pmcdetach pl_d; 150 struct pmclog_ev_proccsw pl_c; 151 struct pmclog_ev_procexec pl_x; 152 struct pmclog_ev_procexit pl_e; 153 struct pmclog_ev_procfork pl_f; 154 struct pmclog_ev_sysexit pl_se; 155 struct pmclog_ev_userdata pl_u; 156 } pl_u; 157 }; 158 159 #define PMCLOG_FD_NONE (-1) 160 161 void *pmclog_open(int _fd); 162 int pmclog_feed(void *_cookie, char *_data, int _len); 163 int pmclog_read(void *_cookie, struct pmclog_ev *_ev); 164 void pmclog_close(void *_cookie); 165 166 #endif 167 168