Date: Wed, 5 Jul 2006 19:28:59 +1000 (EST) From: Peter Jeremy <peterjeremy@optushome.com.au> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/99800: [PATCH] Add support for profiling multiple executions Message-ID: <200607050928.k659Sxrn001307@turion.vk2pj.dyndns.org> Resent-Message-ID: <200607050930.k659ULBo072871@freefall.freebsd.org>
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>Number: 99800 >Category: bin >Synopsis: [PATCH] Add support for profiling multiple executions >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Wed Jul 05 09:30:21 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Peter Jeremy >Release: FreeBSD 6.1-STABLE amd64 >Organization: n/a >Environment: System: FreeBSD turion.vk2pj.dyndns.org 6.1-STABLE FreeBSD 6.1-STABLE #19: Tue Jul 4 17:56:20 EST 2006 root@turion.vk2pj.dyndns.org:/usr/obj/usr/src/sys/turion amd64 >Description: gprof(1) has support for merging multiple gmon.out files but the name 'NAME.gmon' is hard-wired in the profiling code and any existing NAME.gmon file is over-written. The patch below allows a process to create 'NAME.PID.gmon' by creating an enviroment variable "PROFIL_USE_PID". >How-To-Repeat: Code inspection shows that NAME.gmon is hard-coded and truncated. >Fix: Index: lib/libc/gmon/gmon.c =================================================================== RCS file: /usr/ncvs/src/lib/libc/gmon/gmon.c,v retrieving revision 1.20 diff -u -r1.20 gmon.c --- lib/libc/gmon/gmon.c 16 Oct 2004 06:32:43 -0000 1.20 +++ lib/libc/gmon/gmon.c 21 May 2006 19:11:14 -0000 @@ -174,7 +174,11 @@ } 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); >Release-Note: >Audit-Trail: >Unformatted:
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