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Annotation of src/usr.bin/make/trace.c, Revision 1.27

1.27    ! rillig      1: /*     $NetBSD: trace.c,v 1.26 2021/01/19 20:51:46 rillig Exp $        */
1.1       sommerfe    2:
1.26      rillig      3: /*
1.1       sommerfe    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:
1.26      rillig     32: /*
1.1       sommerfe   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:
1.5       wiz        45: #include <sys/time.h>
                     46:
1.1       sommerfe   47: #include "make.h"
                     48: #include "job.h"
                     49: #include "trace.h"
                     50:
1.27    ! rillig     51: MAKE_RCSID("$NetBSD: trace.c,v 1.26 2021/01/19 20:51:46 rillig Exp $");
1.16      rillig     52:
1.1       sommerfe   53: static FILE *trfile;
                     54: static pid_t trpid;
1.13      rillig     55: const char *trwd;
1.1       sommerfe   56:
                     57: static const char *evname[] = {
                     58:        "BEG",
                     59:        "END",
                     60:        "ERR",
                     61:        "JOB",
                     62:        "DON",
                     63:        "INT",
                     64: };
                     65:
                     66: void
1.5       wiz        67: Trace_Init(const char *pathname)
1.1       sommerfe   68: {
                     69:        if (pathname != NULL) {
1.25      rillig     70:                FStr curDir;
1.1       sommerfe   71:                trpid = getpid();
1.21      rillig     72:                /* XXX: This variable may get overwritten later, which
                     73:                 * would make trwd point to undefined behavior. */
1.27    ! rillig     74:                curDir = Var_Value(".CURDIR", SCOPE_GLOBAL);
1.25      rillig     75:                trwd = curDir.str;
1.1       sommerfe   76:
                     77:                trfile = fopen(pathname, "a");
                     78:        }
                     79: }
                     80:
                     81: void
1.5       wiz        82: Trace_Log(TrEvent event, Job *job)
1.1       sommerfe   83: {
1.4       reinoud    84:        struct timeval rightnow;
1.12      rillig     85:
1.1       sommerfe   86:        if (trfile == NULL)
                     87:                return;
                     88:
1.9       christos   89:        gettimeofday(&rightnow, NULL);
1.1       sommerfe   90:
1.11      christos   91:        fprintf(trfile, "%lld.%06ld %d %s %d %s",
                     92:            (long long)rightnow.tv_sec, (long)rightnow.tv_usec,
1.7       dsl        93:            jobTokensRunning,
1.1       sommerfe   94:            evname[event], trpid, trwd);
                     95:        if (job != NULL) {
1.24      rillig     96:                char flags[4];
1.22      rillig     97:
1.23      rillig     98:                Job_FlagsToString(job, flags, sizeof flags);
1.22      rillig     99:                fprintf(trfile, " %s %d %s %x", job->node->name,
                    100:                    job->pid, flags, job->node->type);
1.1       sommerfe  101:        }
1.9       christos  102:        fputc('\n', trfile);
                    103:        fflush(trfile);
1.1       sommerfe  104: }
                    105:
                    106: void
1.5       wiz       107: Trace_End(void)
1.1       sommerfe  108: {
                    109:        if (trfile != NULL)
1.9       christos  110:                fclose(trfile);
1.1       sommerfe  111: }