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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2013-12-16 15:00:06 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2013-12-16 15:00:06 +0000 |
| commit | d72da1522ebaf9f726ebc64ad1bd4c7b3eef10ec (patch) | |
| tree | ca46a549f28578bd0c7311f7eb0a5085e04ee99e | |
| parent | 607fc1b0bd214428aeadf5537952c97b50bbb9af (diff) | |
| download | FreeBSD-src-d72da1522ebaf9f726ebc64ad1bd4c7b3eef10ec.zip FreeBSD-src-d72da1522ebaf9f726ebc64ad1bd4c7b3eef10ec.tar.gz | |
MFC r258819,258928:
Add new sysctl, kern.supported_archs, 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
| -rw-r--r-- | sys/kern/kern_mib.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/kern/kern_mib.c b/sys/kern/kern_mib.c index c84d4b2..ac6196c 100644 --- a/sys/kern/kern_mib.c +++ b/sys/kern/kern_mib.c @@ -261,6 +261,13 @@ sysctl_hw_machine_arch(SYSCTL_HANDLER_ARGS) 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_archs, CTLFLAG_RD | CTLFLAG_MPSAFE, +#ifdef COMPAT_FREEBSD32 + MACHINE_ARCH " " MACHINE_ARCH32, 0, "Supported architectures for binaries"); +#else + MACHINE_ARCH, 0, "Supported architectures for binaries"); +#endif + static int sysctl_hostname(SYSCTL_HANDLER_ARGS) { |
