1 perf-buildid-cache(1) 1 perf-buildid-cache(1)
2 ===================== 2 =====================
3 3
4 NAME 4 NAME
5 ---- 5 ----
6 perf-buildid-cache - Manage build-id cache. 6 perf-buildid-cache - Manage build-id cache.
7 7
8 SYNOPSIS 8 SYNOPSIS
9 -------- 9 --------
10 [verse] 10 [verse]
11 'perf buildid-cache <options>' 11 'perf buildid-cache <options>'
12 12
13 DESCRIPTION 13 DESCRIPTION
14 ----------- 14 -----------
15 This command manages the build-id cache. It ca !! 15 This command manages the build-id cache. It can add and remove files to/from
16 files to/from the cache. In the future it shou !! 16 the cache. In the future it should as well purge older entries, set upper
17 the space used by the cache, etc. !! 17 limits for the space used by the cache, etc.
18 This also scans the target binary for SDT (Sta <<
19 record it along with the buildid-cache, which <<
20 For more details, see linkperf:perf-probe[1]. <<
21 18
22 OPTIONS 19 OPTIONS
23 ------- 20 -------
24 -a:: 21 -a::
25 --add=:: 22 --add=::
26 Add specified file to the cache. 23 Add specified file to the cache.
27 -f:: <<
28 --force:: <<
29 Don't complain, do it. <<
30 -k:: <<
31 --kcore:: <<
32 Add specified kcore file to the cache. <<
33 /proc/kcore which requires root permis <<
34 running 'perf buildid-cache' as root m <<
35 not the user's. Use the -v option to s <<
36 Note that the copied file contains onl <<
37 image. Note also that files "kallsyms" <<
38 same directory and are also copied. A <<
39 permissions for root only. kcore will <<
40 kcore in the cache (with the same buil <<
41 the same addresses. Use the -v option <<
42 actually made. <<
43 -r:: 24 -r::
44 --remove=:: 25 --remove=::
45 Remove a cached binary which has same !! 26 Remove specified file from the cache.
46 from the cache. <<
47 -p:: <<
48 --purge=:: <<
49 Purge all cached binaries including ol <<
50 path from the cache. <<
51 -P:: <<
52 --purge-all:: <<
53 Purge all cached binaries. This will f <<
54 -M:: 27 -M::
55 --missing=:: !! 28 --missing=::
56 List missing build ids in the cache fo 29 List missing build ids in the cache for the specified file.
57 -u:: 30 -u::
58 --update=:: !! 31 --update::
59 Update specified file of the cache. No !! 32 Update specified file of the cache. It can be used to update kallsyms
60 older entries since those may be still !! 33 kernel dso to vmlinux in order to support annotation.
61 (or remote) perf.data. Only if there i <<
62 exactly same build-id, that is replace <<
63 to update kallsyms and kernel dso to v <<
64 annotation. <<
65 -l:: <<
66 --list:: <<
67 List all valid binaries from cache. <<
68 -v:: 34 -v::
69 --verbose:: 35 --verbose::
70 Be more verbose. 36 Be more verbose.
71 <<
72 --target-ns=PID: <<
73 Obtain mount namespace information fro <<
74 used when creating a uprobe for a proc <<
75 different mount namespace from the per <<
76 <<
77 --debuginfod[=URLs]:: <<
78 Specify debuginfod URL to be used when <<
79 it follows the same syntax as the DEBU <<
80 <<
81 buildid-cache.debuginfod=http://192. <<
82 <<
83 If the URLs is not specified, the valu <<
84 system environment variable is used. <<
85 37
86 SEE ALSO 38 SEE ALSO
87 -------- 39 --------
88 linkperf:perf-record[1], linkperf:perf-report[ 40 linkperf:perf-record[1], linkperf:perf-report[1], linkperf:perf-buildid-list[1]
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