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libbpf: Add elf_resolve_pattern_offsets function

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Adding elf_resolve_pattern_offsets function that looks up
offsets for symbols specified by pattern argument.

The 'pattern' argument allows wildcards (*?' supported).

Offsets are returned in allocated array together with its
size and needs to be released by the caller.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230809083440.3209381-13-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa
2023-08-09 10:34:24 +02:00
committed by Alexei Starovoitov
parent 7ace84c689
commit e613d1d0f7
3 changed files with 67 additions and 1 deletions
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2
tools/lib/bpf/libbpf.c
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@@ -10569,7 +10569,7 @@ struct bpf_link *bpf_program__attach_ksyscall(const struct bpf_program *prog,
}
/* Adapted from perf/util/string.c */
static bool glob_match(const char *str, const char *pat)
bool glob_match(const char *str, const char *pat)
{
while (*str && *pat && *pat != '*') {
if (*pat == '?') { /* Matches any single character */