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| author |   Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2022-04-25 03:18:58 +0530 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-04-25 20:26:44 -0700 |
| commit | ef89654f2bc7459f45b40be80de6cd3765ef8539 (patch) | |
| tree | 0f0dd48a06193390f4243c7ff06f75bfed1c7fda /tools/lib/bpf | |
| parent | bpf: Make BTF type match stricter for release arguments (diff) | |
| download | linux-dev-ef89654f2bc7459f45b40be80de6cd3765ef8539.tar.xz linux-dev-ef89654f2bc7459f45b40be80de6cd3765ef8539.zip | |
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: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220424214901.2743946-11-memxor@gmail.com
Diffstat (limited to 'tools/lib/bpf')
| -rw-r--r-- | tools/lib/bpf/bpf_helpers.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h index 44df982d2a5c..5de3eb267125 100644 --- a/tools/lib/bpf/bpf_helpers.h +++ b/tools/lib/bpf/bpf_helpers.h @@ -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 |