Date: Fri, 28 Oct 2005 11:27:23 +0400 From: "Andrew P." <infofarmer@gmail.com> To: Micah <micahjon@ywave.com> Cc: David Kirchner <dpk@dpk.net>, freebsd-questions@freebsd.org Subject: Re: Which version of FreeBSD a binary was compiled for? Message-ID: <cb5206420510280027o61a584cbi99daac180279a967@mail.gmail.com> In-Reply-To: <436196DB.9000408@ywave.com> References: <cb5206420510251524r32ddd9adx7d4fdce8f82a85be@mail.gmail.com> <cb5206420510260818p664df038g39a1035c747ac315@mail.gmail.com> <200510262115.48144.krinklyfig@comcast.net> <cb5206420510270116k27ad6e13r5dd17dbc7323c01f@mail.gmail.com> <4360DB59.7010900@ywave.com> <20051027154408.GS29508@localdomain> <43611E22.5030408@ywave.com> <20051027185157.GV29508@localdomain> <35c231bf0510271220i2fb3de62g55a80f3d06f03355@mail.gmail.com> <436196DB.9000408@ywave.com>
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On 10/28/05, Micah <micahjon@ywave.com> wrote: > David Kirchner wrote: > > On 10/27/05, Will Maier <willmaier@ml1.net> wrote: > > > >>Must be -- some flag produces unique bits in the executables. I'm a > >>little surprised there isn't (AFAICT) anything descriptive in > >>file(1)'s manpage or /u/s/mi/magic that would explain the > >>discrepancy. Didn't see anything in quick looks through gcc(1) or > >>make(1), either. > >> > >>Weird. > > > > > > It doesn't look like it's done in the magic file. Rather, it's > > something built in to file itself. Check out around line 400 of > > 'readelf.c'. > > > > This doesn't explain how it gets in to the binaries built, though. > > Here's some more to think about. I have a simple cpp program I used to > test something a while back. Running file on that executable returns: > > trisha% file floatpoint > floatpoint: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), > for FreeBSD 5.3.0, dynamically linked (uses shared libs), not stripped > > I just now recompiled with "c++ floatpoint.cpp" and now: > trisha% file a.out > a.out: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), > dynamically linked (uses shared libs), not stripped > > And compiled with same commandline on the "working" machine: > alexis% file a.out > a.out: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), for > FreeBSD 5.4, dynamically linked (uses shared libs), not stripped > > I looked at my "env", but I do not see /any/ compiler related variables > set. Is there something up with the compiler itself? My processor? > (Athlon64 in i386 mode) > > Later, > Micah > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" > Clearly, something has changed in the compiler suite.
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