Date: Fri, 04 Jul 2008 09:50:35 +0100 From: Tom Evans <tevans.uk@googlemail.com> To: Edwin Groothuis <edwin@FreeBSD.org> Cc: cvs-src@FreeBSD.org Subject: Re: cvs commit: src/usr.bin/ldd ldd.1 ldd.c Message-ID: <1215161435.35536.50.camel@localhost> In-Reply-To: <200807032238.m63Mc8cZ039421@repoman.freebsd.org> References: <200807032238.m63Mc8cZ039421@repoman.freebsd.org>
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[-- Attachment #1 --] On Thu, 2008-07-03 at 22:37 +0000, Edwin Groothuis wrote: > edwin 2008-07-03 22:37:51 UTC > > FreeBSD src repository > > Modified files: > usr.bin/ldd ldd.1 ldd.c > Log: > SVN rev 180236 on 2008-07-03 22:37:51Z by edwin > > On 64 bit architectures, you can run 32 bit executables and the rtld can trace them, but ldd(1) doesn't know yet how to detect them: > > [/] root@ed-exigent>ldd `which httpd` > ldd: /usr/local/sbin/httpd: can't read program header > ldd: /usr/local/sbin/httpd: not a dynamic executable > > But... > > [/] root@ed-exigent>LD_32_TRACE_LOADED_OBJECTS==1 `which httpd` > libm.so.4 => /lib32//libm.so.4 (0x280c8000) > libaprutil-1.so.2 => /usr/local/lib/libaprutil-1.so.2 (0x280de000) > libexpat.so.6 => /usr/local/lib/libexpat.so.6 (0x280f2000) > libiconv.so.3 => /usr/local/lib/libiconv.so.3 (0x28110000) > libapr-1.so.2 => /usr/local/lib/libapr-1.so.2 (0x281fd000) > libcrypt.so.3 => /lib32//libcrypt.so.3 (0x2821d000) > libpthread.so.2 => not found (0x0) > libc.so.6 => /lib32//libc.so.6 (0x28235000) > libpthread.so.2 => /usr/lib32/libpthread.so.2 (0x2830d000) > > Added support in ldd(1) for the LD_32_xxx environment variables if > the architecture of the machine is >32 bits. If we ever go to 128 > bit architectures this excercise will have to be repeated but thanks > to earlier commits today it will be relative simple. > > PR: bin/124906 > Submitted by: edwin > Approved by: bde (mentor) > MFC after: 1 week > > Revision Changes Path > 1.27 +6 -0 src/usr.bin/ldd/ldd.1 > 1.36 +76 -2 src/usr.bin/ldd/ldd.c Hi Edwin, this is fantastic. Can it be MFC'ed to RELENG_6? Cheers Tom [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEABECAAYFAkht5FcACgkQlcRvFfyds/cw2wCglfTXOHYz6gr9RC1EbrH4Y7Dx lc0An1ztSG3H7LAkfF/Z+8tQj2LwjCEo =MhNJ -----END PGP SIGNATURE-----
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