1 /* $NetBSD: trace.c,v 1.32 2022/03/26 14:02:40 rillig Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Bill Sommerfeld 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * trace.c -- 34 * handle logging of trace events generated by various parts of make. 35 * 36 * Interface: 37 * Trace_Init Initialize tracing (called once during 38 * the lifetime of the process) 39 * 40 * Trace_End Finalize tracing (called before make exits) 41 * 42 * Trace_Log Log an event about a particular make job. 43 */ 44 45 #include <sys/time.h> 46 47 #include "make.h" 48 #include "job.h" 49 #include "trace.h" 50 51 MAKE_RCSID("$NetBSD: trace.c,v 1.32 2022/03/26 14:02:40 rillig Exp $"); 52 53 static FILE *trfile; 54 static pid_t trpid; 55 const char *trwd; 56 57 static const char evname[][4] = { 58 "BEG", 59 "END", 60 "ERR", 61 "JOB", 62 "DON", 63 "INT", 64 }; 65 66 void 67 Trace_Init(const char *pathname) 68 { 69 if (pathname != NULL) { 70 FStr curDir; 71 trpid = getpid(); 72 /* 73 * XXX: This variable may get overwritten later, which would 74 * make trwd point to undefined behavior. 75 */ 76 curDir = Var_Value(SCOPE_GLOBAL, ".CURDIR"); 77 trwd = curDir.str; 78 79 trfile = fopen(pathname, "a"); 80 } 81 } 82 83 void 84 Trace_Log(TrEvent event, Job *job) 85 { 86 struct timeval rightnow; 87 88 if (trfile == NULL) 89 return; 90 91 gettimeofday(&rightnow, NULL); 92 93 #if __STDC_VERSION__ >= 199901L 94 fprintf(trfile, "%lld.%06ld %d %s %d %s", 95 (long long)rightnow.tv_sec, (long)rightnow.tv_usec, 96 jobTokensRunning, 97 evname[event], trpid, trwd); 98 #else 99 fprintf(trfile, "%ld.%06ld %d %s %d %s", 100 (long)rightnow.tv_sec, (long)rightnow.tv_usec, 101 jobTokensRunning, 102 evname[event], trpid, trwd); 103 #endif 104 if (job != NULL) { 105 char flags[4]; 106 107 Job_FlagsToString(job, flags, sizeof flags); 108 fprintf(trfile, " %s %d %s %x", job->node->name, 109 job->pid, flags, job->node->type); 110 } 111 fputc('\n', trfile); 112 fflush(trfile); 113 } 114 115 void 116 Trace_End(void) 117 { 118 if (trfile != NULL) 119 fclose(trfile); 120 } 121