X-Authentication-Warning: delorie.com: mailnull set sender to djgpp-bounces using -f From: Hans-Bernhard Broeker Newsgroups: comp.os.msdos.djgpp Subject: Re: Profiling application Date: 14 Dec 2001 16:36:42 GMT Organization: Aachen University of Technology (RWTH) Lines: 27 Message-ID: <9vd9qq$80h$1@nets3.rz.RWTH-Aachen.DE> References: <002001c184b8$ed27ec30$1400a8c0 AT alex> NNTP-Posting-Host: acp3bf.physik.rwth-aachen.de X-Trace: nets3.rz.RWTH-Aachen.DE 1008347802 8209 137.226.32.75 (14 Dec 2001 16:36:42 GMT) X-Complaints-To: abuse AT rwth-aachen DOT de NNTP-Posting-Date: 14 Dec 2001 16:36:42 GMT Originator: broeker@ To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Alex Oleynikov wrote: > I am trying to profile my application (compiled with DJGPP v.2.03, > gcc v.2.95.3, binutils v.2.10). I have compiled it with -pg and -a > switches and ran. It produces a file bb.out (BTW, DJGPP FAQ talks > about gmon.out, do I have to rename it afterwards?) with some > statistics. You got it partly wrong. '-a' is not really for profiling: it's for line-by-line execution counting. Try again, without '-a', and you'll be better off, I guess. If you really want execution counts per source line, I recommend using "gcov" and gcc options "-fprofile-arcs -ftest-coverage" instead. IIRC, -pg and -a don't work together at all. That's the reason why you didn't get the gmon.out file. Note that you have to *link* with -pg, too, not just compile. > Now, every time I try to run my profiler (gprof app.exe bb.out) it exits > with a message: "d:/djgpp/bin/gprof.exe: Cannot allocate 1087817412 bytes" That's because bb.out is the wrong type of input file, and gprof doesn't really check whether the file you gave it is a valid "gmon.out" format file. -- Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de) Even if all the snow were burnt, ashes would remain.