Author: eadler
Date: Sun May 6 14:10:56 2012
New Revision: 235082
URL: http://svn.freebsd.org/changeset/base/235082
Log:
MFC r234819:
Allow users of gprof to get per run output files (using the pid)
PR: bin/99800
Approved by: cperciva (implicit)
Modified:
stable/9/lib/libc/gmon/gmon.c
stable/9/lib/libc/gmon/moncontrol.3
Directory Properties:
stable/9/lib/libc/ (props changed)
Modified: stable/9/lib/libc/gmon/gmon.c
==============================================================================
--- stable/9/lib/libc/gmon/gmon.c Sun May 6 13:09:13 2012
(r235081)
+++ stable/9/lib/libc/gmon/gmon.c Sun May 6 14:10:56 2012
(r235082)
@@ -157,7 +157,12 @@ _mcleanup(void)
}
moncontrol(0);
- snprintf(outname, sizeof(outname), "%s.gmon", _getprogname());
+ if (getenv("PROFIL_USE_PID"))
+ snprintf(outname, sizeof(outname), "%s.%d.gmon",
+ _getprogname(), getpid());
+ else
+ snprintf(outname, sizeof(outname), "%s.gmon", _getprogname());
+
fd = _open(outname, O_CREAT|O_TRUNC|O_WRONLY, 0666);
if (fd < 0) {
_warn("_mcleanup: %s", outname);
Modified: stable/9/lib/libc/gmon/moncontrol.3
==============================================================================
--- stable/9/lib/libc/gmon/moncontrol.3 Sun May 6 13:09:13 2012
(r235081)
+++ stable/9/lib/libc/gmon/moncontrol.3 Sun May 6 14:10:56 2012
(r235082)
@@ -98,6 +98,12 @@ however, all functions in that address r
have their execution time measured.
Profiling begins on return from
.Fn monstartup .
+.Sh ENVIRONMENT
+The following environment variables affect the execution of
+.Nm :
+.Bl -tag -width ".Ev PROFIL_USE_PID"
+.It PROFIL_USE_PID
+If set, the pid of the process is inserted into the filename.
.Sh FILES
.Bl -tag -width progname.gmon -compact
.It Pa progname.gmon
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