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bpftool: auto-complete BTF IDs for btf dump

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Auto-complete BTF IDs for `btf dump id` sub-command. List of possible BTF
IDs is scavenged from loaded BPF programs that have associated BTFs, as
there is currently no API in libbpf to fetch list of all BTFs in the
system.

Suggested-by: Quentin Monnet <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Reviewed-by: Quentin Monnet <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
This commit is contained in:
Andrii Nakryiko 2019-05-25 17:01:01 -07:00 • committed by Daniel Borkmann
commit 0d97dacc46
1 changed files with 9 additions and 0 deletions
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9
tools/bpf/bpftool/bash-completion/bpftool
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@ -71,6 +71,12 @@ _bpftool_get_prog_tags()
command sed -n 's/.*"tag": "\(.*\)",$/\1/p' )" -- "$cur" ) )
}
_bpftool_get_btf_ids()
{
COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
command sed -n 's/.*"btf_id": \(.*\),\?$/\1/p' )" -- "$cur" ) )
}
_bpftool_get_obj_map_names()
{
local obj
@ -635,6 +641,9 @@ _bpftool()
map)
_bpftool_get_map_ids
;;
dump)
_bpftool_get_btf_ids
;;
esac
return 0
;;