Merge branch 'libbpf-stringify-error-codes-in-log-messages'

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Mykyta Yatsenko says:

====================
libbpf: stringify error codes in log messages

From: Mykyta Yatsenko <yatsenko@meta.com>

Libbpf may report error in 2 ways:
 1. Numeric errno
 2. Errno's text representation, returned by strerror
Both ways may be confusing for users: numeric code requires people to
know how to find its meaning and strerror may be too generic and
unclear.

These patches modify libbpf error reporting by swapping numeric codes
and strerror with the standard short error name, for example:
"failed to attach: -22" becomes "failed to attach: -EINVAL".
====================

Link: https://patch.msgid.link/20241111212919.368971-1-mykyta.yatsenko5@gmail.com
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

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This commit is contained in:

Andrii Nakryiko 2024-11-11 20:14:57 -08:00

parent 213a695297 4ce16ddd71

commit 47e2c45c9c

11 changed files with 306 additions and 266 deletions

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26

tools/lib/bpf/btf.c

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3

tools/lib/bpf/btf_dump.c

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4

tools/lib/bpf/elf.c

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15

tools/lib/bpf/features.c

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3

tools/lib/bpf/gen_loader.c

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356

tools/lib/bpf/libbpf.c

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21

tools/lib/bpf/linker.c

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34

tools/lib/bpf/ringbuf.c

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71

tools/lib/bpf/str_error.c

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7

tools/lib/bpf/str_error.h

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32

tools/lib/bpf/usdt.c

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