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libbpf: Use func name when pinning programs with LIBBPF_STRICT_SEC_NAME

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We can't use section name anymore because they are not unique
and pinning objects with multiple programs with the same
progtype/secname will fail.

  [0] Closes: https://github.com/libbpf/libbpf/issues/273

Fixes: 33a2c75c55e2 ("libbpf: add internal pin_name")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20211021214814.1236114-2-sdf@google.com
This commit is contained in:
Stanislav Fomichev
2021-10-21 14:48:12 -07:00
committed by Andrii Nakryiko
parent 596c9a2d77
commit f1558d7a23
2 changed files with 14 additions and 2 deletions
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3
src/libbpf_legacy.h
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@@ -52,6 +52,9 @@ enum libbpf_strict_mode {
* allowed, with LIBBPF_STRICT_SEC_PREFIX this will become
* unrecognized by libbpf and would have to be just SEC("xdp") and
* SEC("xdp") and SEC("perf_event").
*
* Note, in this mode the program pin path will be based on the
* function name instead of section name.
*/
LIBBPF_STRICT_SEC_NAME = 0x04,