libbpf: Improve string parsing for uprobe auto-attach

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For uprobe auto-attach, the parsing can be simplified for the SEC()
name to a single sscanf(); the return value of the sscanf can then
be used to distinguish between sections that simply specify
"u[ret]probe" (and thus cannot auto-attach), those that specify
"u[ret]probe/binary_path:function+offset" etc.

Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/1649245431-29956-3-git-send-email-alan.maguire@oracle.com

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Alan Maguire 2022-04-06 12:43:50 +01:00 • committed by Andrii Nakryiko

parent a1c9d61b19

commit 90db26e6be

1 changed files with 33 additions and 48 deletions

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tools/lib/bpf/libbpf.c

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