This is the command perf-buildid-cache that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
perf-buildid-cache - Manage build-id cache.
SYNOPSIS
perf buildid-cache <options>
DESCRIPTION
This command manages the build-id cache. It can add, remove, update and purge files
to/from the cache. In the future it should as well set upper limits for the space used by
the cache, etc.
OPTIONS
-a, --add=
Add specified file to the cache.
-k, --kcore
Add specified kcore file to the cache. For the current host that is /proc/kcore which
requires root permissions to read. Be aware that running perf buildid-cache as root
may update root’s build-id cache not the user’s. Use the -v option to see where the
file is created. Note that the copied file contains only code sections not the whole
core image. Note also that files "kallsyms" and "modules" must also be in the same
directory and are also copied. All 3 files are created with read permissions for root
only. kcore will not be added if there is already a kcore in the cache (with the same
build-id) that has the same modules at the same addresses. Use the -v option to see if
a copy of kcore is actually made.
-r, --remove=
Remove a cached binary which has same build-id of specified file from the cache.
-p, --purge=
Purge all cached binaries including older caches which have specified path from the
cache.
-M, --missing=
List missing build ids in the cache for the specified file.
-u, --update=
Update specified file of the cache. Note that this doesn’t remove older entires since
those may be still needed for annotating old (or remote) perf.data. Only if there is
already a cache which has exactly same build-id, that is replaced by new one. It can
be used to update kallsyms and kernel dso to vmlinux in order to support annotation.
-v, --verbose
Be more verbose.
Use perf-buildid-cache online using onworks.net services
