Date: Fri, 11 Apr 2003 21:41:26 -0500 (CDT) From: Loren James Rittle <rittle@latour.rsch.comm.mot.com> To: hackers@freebsd.org Cc: gmarco@giovannelli.it Subject: Re: gcc iussue or ... ? Message-ID: <200304120241.h3C2fQCc061882@latour.rsch.comm.mot.com> In-Reply-To: <5.2.0.9.2.20030411082040.02604e90@194.184.65.4>
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In article <5.2.0.9.2.20030411082040.02604e90@194.184.65.4> you write: > The problem is very simple. I mantain a unix/linux port of a UO > emulator which works really fine natively under FreeBSD. Thank you for this report. Please consider this question: What versions of g++/binutils were used on the various platforms? Please know this: There is a per-platform and per-binutils version influence on mapping of program data/BSS to ELF section. g++ 3.3 with recent binutils on FreeBSD *will* allocate data as you saw on debian 3.0 (with a compiler version you didn't report). Created with g++ 3.3 (prerelease) with binutils 2.13.2.1: ; size lonewolf text data bss dec hex filename 1792215 49768 21850592 23692575 169851f lonewolf ; ls -l lonewolf -rwxr-xr-x 1 rittle wheel 1992568 Apr 11 20:18 lonewolf* Apparently, 3.2.X Created with g++ 3.2.2 built from FreeBSD ports with FreeBSD 4.7 system binuilts 2.12.1: ; size lonewolf text data bss dec hex filename 1358349 17543167 4539088 23440604 165acdc lonewolf ; ls -l lonewolf -rwxr-xr-x 1 rittle wheel 21161728 Apr 11 20:35 lonewolf* Spot checking the RedHat 8.0 system compiler which is labeled as 3.2 (but I happen to know is quite patched) with binutils 2.13+, globals.o is the tiny size. It is possible that you might find that any random version of g++ for Linux allocates data to sections differently than FreeBSD. I couldn't tell you the exact release, but others fixed/improved C++'s use of ELF sections in general (it was not as good as plain C in some areas). After the general cleanup, I went through and fixed all the remaining FreeBSD-specific bugs/issues in this area some time ago. However, I don't know if that work hit the 3.2 branch of the compiler... Regards, Loren
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