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/cdefs.h> 37 #include <sys/pmclog.h> 38 39 enum pmclog_state { 40 PMCLOG_OK, 41 PMCLOG_EOF, 42 PMCLOG_REQUIRE_DATA, 43 PMCLOG_ERROR 44 }; 45 46 struct pmclog_ev_callchain { 47 uint32_t pl_pid; 48 uint32_t pl_pmcid; 49 uint32_t pl_cpuflags; 50 uint32_t pl_npc; 51 uintfptr_t pl_pc[PMC_CALLCHAIN_DEPTH_MAX]; 52 }; 53 54 struct pmclog_ev_dropnotify { 55 }; 56 57 struct pmclog_ev_closelog { 58 }; 59 60 struct pmclog_ev_initialize { 61 uint32_t pl_version; 62 uint32_t pl_arch; 63 }; 64 65 struct pmclog_ev_map_in { 66 pid_t pl_pid; 67 uintfptr_t pl_start; 68 char pl_pathname[PATH_MAX]; 69 }; 70 71 struct pmclog_ev_map_out { 72 pid_t pl_pid; 73 uintfptr_t pl_start; 74 uintfptr_t pl_end; 75 }; 76 77 struct pmclog_ev_pcsample { 78 uintfptr_t pl_pc; 79 pid_t pl_pid; 80 pmc_id_t pl_pmcid; 81 uint32_t pl_usermode; 82 }; 83 84 struct pmclog_ev_pmcallocate { 85 uint32_t pl_event; 86 const char * pl_evname; 87 uint32_t pl_flags; 88 pmc_id_t pl_pmcid; 89 }; 90 91 struct pmclog_ev_pmcattach { 92 pmc_id_t pl_pmcid; 93 pid_t pl_pid; 94 char pl_pathname[PATH_MAX]; 95 }; 96 97 struct pmclog_ev_pmcdetach { 98 pmc_id_t pl_pmcid; 99 pid_t pl_pid; 100 }; 101 102 struct pmclog_ev_proccsw { 103 pid_t pl_pid; 104 pmc_id_t pl_pmcid; 105 pmc_value_t pl_value; 106 }; 107 108 struct pmclog_ev_procexec { 109 pid_t pl_pid; 110 pmc_id_t pl_pmcid; 111 uintfptr_t pl_entryaddr; 112 char pl_pathname[PATH_MAX]; 113 }; 114 115 struct pmclog_ev_procexit { 116 uint32_t pl_pid; 117 pmc_id_t pl_pmcid; 118 pmc_value_t pl_value; 119 }; 120 121 struct pmclog_ev_procfork { 122 pid_t pl_oldpid; 123 pid_t pl_newpid; 124 }; 125 126 struct pmclog_ev_sysexit { 127 pid_t pl_pid; 128 }; 129 130 struct pmclog_ev_userdata { 131 uint32_t pl_userdata; 132 }; 133 134 struct pmclog_ev { 135 enum pmclog_state pl_state; /* state after 'get_event()' */ 136 off_t pl_offset; /* byte offset in stream */ 137 size_t pl_count; /* count of records so far */ 138 struct timespec pl_ts; /* log entry timestamp */ 139 enum pmclog_type pl_type; /* type of log entry */ 140 union { /* log entry data */ 141 struct pmclog_ev_callchain pl_cc; 142 struct pmclog_ev_closelog pl_cl; 143 struct pmclog_ev_dropnotify pl_dn; 144 struct pmclog_ev_initialize pl_i; 145 struct pmclog_ev_map_in pl_mi; 146 struct pmclog_ev_map_out pl_mo; 147 struct pmclog_ev_pcsample pl_s; 148 struct pmclog_ev_pmcallocate pl_a; 149 struct pmclog_ev_pmcattach pl_t; 150 struct pmclog_ev_pmcdetach pl_d; 151 struct pmclog_ev_proccsw pl_c; 152 struct pmclog_ev_procexec pl_x; 153 struct pmclog_ev_procexit pl_e; 154 struct pmclog_ev_procfork pl_f; 155 struct pmclog_ev_sysexit pl_se; 156 struct pmclog_ev_userdata pl_u; 157 } pl_u; 158 }; 159 160 #define PMCLOG_FD_NONE (-1) 161 162 __BEGIN_DECLS 163 void *pmclog_open(int _fd); 164 int pmclog_feed(void *_cookie, char *_data, int _len); 165 int pmclog_read(void *_cookie, struct pmclog_ev *_ev); 166 void pmclog_close(void *_cookie); 167 __END_DECLS 168 169 #endif 170 171