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When dumping a character array, libbpf will watch for a '\0' and set
is_array_terminated=true if found. This prevents libbpf from printing
the remaining characters of the array, treating it as a nul-terminated
string.
However, once this flag is set, it's never reset, leading to subsequent
characters array not being printed properly:
.str_multi = (__u8[2][16])[
[
'H',
'e',
'l',
],
],
This patch saves the is_array_terminated flag and restores its
default (false) value before looping over the elements of an array,
then restores it afterward. This way, libbpf's behavior is unchanged
when dumping the characters of an array, but subsequent arrays are
printed properly:
.str_multi = (__u8[2][16])[
[
'H',
'e',
'l',
],
[
'l',
'o',
],
],
Signed-off-by: Quentin Deslandes <qde@naccy.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240413211258.134421-3-qde@naccy.de
e739e01d8d