hi,
when including btf.h in bpftrace, I'm getting -Wcast-qual warnings like:
bpf/btf.h: In function ‘btf_var_secinfo* btf_var_secinfos(const btf_type*)’:
bpf/btf.h:302:41: warning: cast from type ‘const btf_type*’ to type
‘btf_var_secinfo*’ casts away qualifiers [-Wcast-qual]
302 | return (struct btf_var_secinfo *)(t + 1);
| ^
I changed the btf.h header to comply with -Wcast-qual checks
and used const cast away casting in libbpf objects, where it's
all related to deduplication code, so I believe loosing const
is fine there.
thanks,
jirka
---
Jiri Olsa (7):
libbpf: Use const cast for btf_int_* functions
libbpf: Return const btf_array from btf_array inline function
libbpf: Return const btf_enum from btf_enum inline function
libbpf: Return const btf_member from btf_members inline function
libbpf: Return const btf_param from btf_params inline function
libbpf: Return const btf_var from btf_var inline function
libbpf: Return const struct btf_var_secinfo from btf_var_secinfos inline
function
tools/lib/bpf/btf.c | 21 +++++++++++----------
tools/lib/bpf/btf.h | 30 +++++++++++++++---------------
tools/lib/bpf/libbpf.c | 2 +-
3 files changed, 27 insertions(+), 26 deletions(-)
