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libbpf: Sanitize BPF program code for bpf_probe_read_{kernel, user}[_str]
authorAndrii Nakryiko <andriin@fb.com>
Tue, 18 Aug 2020 21:33:53 +0000 (14:33 -0700)
committerAlexei Starovoitov <ast@kernel.org>
Wed, 19 Aug 2020 00:16:15 +0000 (17:16 -0700)
commit6daa04b945175810e20f6c1c2ef40406809186e2
tree58f00ffee0aeb132a3db6ccb550902d1b4054130tree | snapshot
parenteced9b4e305d70a9801a2063e739b5fb1c60da88commit | diff
libbpf: Sanitize BPF program code for bpf_probe_read_{kernel, user}[_str]

Add BPF program code sanitization pass, replacing calls to BPF
bpf_probe_read_{kernel,user}[_str]() helpers with bpf_probe_read[_str](), if
libbpf detects that kernel doesn't support new variants.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200818213356.2629020-5-andriin@fb.com
tools/lib/bpf/libbpf.c diff | blob | history
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