Commit ef89654f authored by Kumar Kartikeya Dwivedi's avatar Kumar Kartikeya Dwivedi Committed by Alexei Starovoitov
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libbpf: Add kptr type tag macros to bpf_helpers.h 



Include convenience definitions:
__kptr:	Unreferenced kptr
__kptr_ref: Referenced kptr

Users can use them to tag the pointer type meant to be used with the new
support directly in the map value definition.

Signed-off-by: default avatarKumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220424214901.2743946-11-memxor@gmail.com
parent 2ab3b380

tools/lib/bpf/bpf_helpers.h

+7 −0
Original line number Diff line number Diff line
@@ -149,6 +149,13 @@ enum libbpf_tristate { 


#define __kconfig __attribute__((section(".kconfig")))

#define __ksym __attribute__((section(".ksyms")))

#if __has_attribute(btf_type_tag)

#define __kptr __attribute__((btf_type_tag("kptr")))

#define __kptr_ref __attribute__((btf_type_tag("kptr_ref")))

#else

#define __kptr

#define __kptr_ref

#endif



#ifndef ___bpf_concat

#define ___bpf_concat(a, b) a ## b