Date: Mon, 2 Dec 2013 00:44:36 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r258819 - head/sys/kern Message-ID: <201312020044.rB20iaOB074726@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: nwhitehorn Date: Mon Dec 2 00:44:36 2013 New Revision: 258819 URL: http://svnweb.freebsd.org/changeset/base/258819 Log: Add new sysctl, kern.supported_abis, containing the list of FreeBSD MACHINE_ARCH values whose binaries this kernel can run. This patch provides a feature requested for implementing pkgng ABI identifiers in a robust way. The list is designed to indicate whether, say, an i386 package can be run on the current system. If kern.supported_abis contains "i386", then the answer is yes. Otherwise, the answer is no. At the moment, this only supports MACHINE_ARCH and MACHINE_ARCH32. As we gain support for more interesting combinations, this needs to become more flexible, possibily through the sysent framework, along with the hw.machine_arch emulation immediately preceding this code in kern_mib.c. Reviewed by: imp MFC after: 3 days Modified: head/sys/kern/kern_mib.c Modified: head/sys/kern/kern_mib.c ============================================================================== --- head/sys/kern/kern_mib.c Sun Dec 1 22:43:14 2013 (r258818) +++ head/sys/kern/kern_mib.c Mon Dec 2 00:44:36 2013 (r258819) @@ -261,6 +261,13 @@ sysctl_hw_machine_arch(SYSCTL_HANDLER_AR SYSCTL_PROC(_hw, HW_MACHINE_ARCH, machine_arch, CTLTYPE_STRING | CTLFLAG_RD, NULL, 0, sysctl_hw_machine_arch, "A", "System architecture"); +SYSCTL_STRING(_kern, OID_AUTO, supported_abis, CTLFLAG_RD | CTLFLAG_MPSAFE, +#ifdef COMPAT_FREEBSD32 + MACHINE_ARCH " " MACHINE_ARCH32, 0, "List of supported ABIs"); +#else + MACHINE_ARCH, 0, "List of supported ABIs"); +#endif + static int sysctl_hostname(SYSCTL_HANDLER_ARGS) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201312020044.rB20iaOB074726>