Date: Fri, 11 Mar 2016 11:15:59 +0000 From: Matthew Seaman <matthew@FreeBSD.org> To: freebsd-ports@freebsd.org Subject: Re: pkg: fetching binary packages to a local dumpdir for a different ABI Message-ID: <56E2A8EF.8000705@freebsd.org> In-Reply-To: <56E2973C.8070703@quip.cz> References: <20160311104226.35a9e17d@freyja.zeit4.iv.bundesimmobilien.de> <56E2973C.8070703@quip.cz>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --gMSi12dJTH2MrgGuWPwXJUjuW7SoMGlSa Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 03/11/16 10:00, Miroslav Lachman wrote: > O. Hartmann wrote on 03/11/2016 10:42: >=20 > [...] >=20 >> The ABI is also unclear. Some documents say it is freebsd:10:x86:64 >> (which >> looks more the Intel/Linux dominated terminology) and also this one is= >> considered correct: FreeBSD:10:amd64 (looks more FreeBSD'ish). It is >> said that >> the variable ABI is derived from "sh" - how? >=20 > It is freebsd:10:x86:64. You can look at http://pkg.freebsd.org/ > The full URL is http://pkg.freebsd.org/freebsd:10:x86:64/ Actually, ${ABI} *used* to be freebsd:10:x86:64. It changed to FreeBSD:10:amd64 quite some time and numerous releases of pkg(8) ago now.= The ABI is usually determined by examining the binary of /bin/sh -- chosen because /bin/sh is likely to be present even on the most cut-down jail. It works vaguely similarly to the way file(1) does: % file /bin/sh /bin/sh: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD 10.2 (1002509), stripped although there's no common code history between file(1) and pkg(8). If you feel like reading some C code, look at https://github.com/freebsd/pkg/blob/master/libpkg/pkg_elf.c#L691 -- the functions pkg_get_myarch_elfparse() and pkg_get_myarch() at line 964 are what does the job. Cheers, Matthew --gMSi12dJTH2MrgGuWPwXJUjuW7SoMGlSa Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJW4qj1AAoJEABRPxDgqeTnqO4QAJHjT+NjIBqG8COL4QDZ9g7W JcP87zietfyHy8KXJbfBrmcSGjmXhxxsXy8Y9CDZxrBS8lRqySvl7GV2tvqwldeX NtOS6vWdxzvglLLIBey4oJBwnFtQTA8X6nqhDCt5VQTK6UacEQp/7A6+uH+0TgYH P26uP3lvrr5UvASpJQbAx2YF2Qv1vnO+PXn80aArNjS2EUhctHxEmAPS/V1HUcDm Ktaz43e9/MfYZEaHow0n2fZyBb/DUkyFoZY3CovoL3ISS8pl/7HluhPcB9Vry03Z BzY3+4WqB526loumVm0rbDtV/9lMRN1Z0ODghBGl84WZIwJWiCs+AwUwwKDG95l5 H4sW8Dv+UUzrqW6SOgjWn0QCOMxgYGXUd1OuyZyqsuEBsCc6WuHzoRsyyksEbGhG onC8wNoYbq2m/LsRe09reZ8oQ85B9SddbjyJXvJmUCb4SfRyNWRs3si73wgOfC7A AEP3T817Bqw7hWgqRZcJVYoSFr1BG1lu4rOGB3Z7WT9XUP5PWW0D9KPagqlNHEWA FzbbgK/j+H0cTCFESo9/khB45ucFqVQHaj6A4pACcjWbWRDpCSOmDPJFl5X7e2kB dkBOOLz87fLKJVgbIguaqn4KSZNgDvC0TQgya7dzKfr70q+GwZuU5Njvt4nKt/yq PUdb1Ua6J0+qcPjTgfiX =4uXc -----END PGP SIGNATURE----- --gMSi12dJTH2MrgGuWPwXJUjuW7SoMGlSa--
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