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btf_encoder: Use better fallback message 

Using more suitable fallback message for the case when the ftrace filter
can't be used because of missing symbols.

Committer notes:

Before:

  vmlinux not detected, falling back to dwarf data

Now:

  ftrace symbols not detected, falling back to DWARF data

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Requested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: dwarves@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2020-11-16 21:24:58 +01:00 committed by Arnaldo Carvalho de Melo
parent d06048c530
commit b3dd4f3c3d
1 changed files with 1 additions and 1 deletions
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2
btf_encoder.c
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@ -511,7 +511,7 @@ static int collect_symbols(struct btf_elf *btfe, bool collect_percpu_vars)
printf("Found %d functions!\n", functions_cnt);
} else {
if (btf_elf__verbose)
printf("vmlinux not detected, falling back to dwarf data\n");
printf("ftrace symbols not detected, falling back to DWARF data\n");
delete_functions();
}