[Buildroot] [Bug 6404] New: Buildroot's coreutils 'uname -p' reports 'Unknown' on recent ARM kernels
bugzilla at busybox.net
bugzilla at busybox.net
Thu Aug 1 04:30:02 UTC 2013
https://bugs.busybox.net/show_bug.cgi?id=6404
Summary: Buildroot's coreutils 'uname -p' reports 'Unknown' on
recent ARM kernels
Product: buildroot
Version: 2013.05
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
AssignedTo: unassigned at buildroot.uclibc.org
ReportedBy: daniel.price at gmail.com
CC: buildroot at uclibc.org
Estimated Hours: 0.0
Buildroot's coreutils uname(1) command has a special patch applied as part of
buildroot. When you run 'uname -p', it tries to print out extended information
about the processor you are running. It does this by parsing /proc/cpuinfo.
I'm not sure of the provenance of this enhancement, but you can read the code
in package/coreutils/coreutils-uname.patch.
However, on recent ARM kernels, the format of /proc/cpuinfo has changed
incompatibly. Several packages subsequently break. I believe the commit in
question is this:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82b5df7bf27ca6cf642499bc3bcae1c93b9ac4ba
So, I recently discovered that when matched with recent ARM kernels, uname -p
on buildroot is simply reporting 'Unknown'. I'm not really sure what the right
answer might be. The code doesn't really seem set up to parse the
/proc/cpuinfo file in more than one way.
I am presently using buildroot 2012.11, but the code seems to be the same in
the latest release as well.
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