Date: Thu, 5 Mar 1998 22:10:38 -0500 (EST) From: David Kott <dakott@alpha.delta.edu> To: freebsd-questions@FreeBSD.ORG Subject: Re: PGCC and FreeBSD Message-ID: <Pine.BSF.3.96.980305214502.13444B-200000@kott.my.domain> In-Reply-To: <Pine.BSF.3.96.980303142506.21082D-100000@gdi.uoregon.edu>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --0-1858399065-889153838=:13444 Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 3 Mar 1998, Doug White wrote: > On Mon, 2 Mar 1998, Mark Castillo wrote: > > > Has anyone installed PGCC on FreeBSD and performed a "make world"? I > > wonder if the pentium optimizations break anyting. > > pgcc still has bugs; you can't build a kernel with it. > > Doug White | University of Oregon Actually Doug, I do compile my -stable kernel with pgcc version 2.7.2p. I do have to make minor modifications to my makefile because, as you say, pgcc is a bit buggy, and will not compile a few of the kernel programs. Here is a list of the files that I compile with the standard GNU distribution in my kernel build. Naturally, someone else's machine will have different hardware and will config for different source, so this might not represent a complete list. Also, attached is my patchfile that I apply to my kernel Makefile before I build. It basically explicitly calls out the GNU C compiler for the following source files, and uses the PGCC compiler to compile the others. For the record, I have not observed any performance improvement with this compiler. I have used lmbench (available in the ports collection) to benchmark different kernel builds, in an attempt to quantitize any performance increases. In gross summary, I didn't find any statistically significant differences, but I still use pgcc to build my kernel. As far as building my entire filesystem, well, I have not successfully ever done that. I usually just rebuild tar and gzip after a "world" make. Here are those files that pgcc chokes on: ioconf.c isofs/cd9660/cd9660_vnops.c kern/kern_clock.c kern/kern_resource.c kern/subr_prof.c kern/vfs_bio.c kern/vfs_conf.c nfs/nfs_bio.c nfs/nfs_serv.c pci/if_de.c i386/i386/identcpu.c i386/isa/clock.c i386/isa/random_machdep.c i386/isa/spkr.c i386/isa/syscons.c -d --0-1858399065-889153838=:13444 Content-Type: TEXT/PLAIN; charset=US-ASCII; name="patch.Makefile" Content-Transfer-Encoding: BASE64 Content-ID: <Pine.BSF.3.96.980305221038.13444C@kott.my.domain> Content-Description: KioqIE1ha2VmaWxlCVRodSBPY3QgIDIgMTk6MTE6MTkgMTk5Nw0KLS0tIC4u L05ld01ha2VmaWxlCVRodSBPY3QgIDIgMTk6MDg6MzIgMTk5Nw0KKioqKioq KioqKioqKioqDQoqKiogNDAsNDMgKioqKg0KLS0tIDQwLDQ0IC0tLS0NCiAg Q09QVFM9CSR7SU5DTFVERVN9ICR7SURFTlR9IC1ES0VSTkVMDQogIENGTEFH Uz0JJHtDT1BURkxBR1N9ICR7Q1dBUk5GTEFHU30gJHtERUJVR30gJHtDT1BU U30NCisgT0xEQ0ZMQUdTID0gJHtPTERDT1BURkxBR1N9ICR7Q1dBUk5GTEFH U30gJHtERUJVR30gJHtDT1BUU30NCiAgTE9BRF9BRERSRVNTPz0JRjAxMDAw 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