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| author | Alexei Starovoitov <ast@kernel.org> | 2019-09-17 19:45:38 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-09-19 14:22:44 +0200 |
| commit | a0791f0df7d212c245761538b17a9ea93607b667 (patch) | |
| tree | 593e1c4283a6689441a6ac90d76ada3fd571a303 | |
| parent | bpf: fix BTF verification of enums (diff) | |
| download | linux-a0791f0df7d212c245761538b17a9ea93607b667.tar.xz linux-a0791f0df7d212c245761538b17a9ea93607b667.zip | |
bpf: fix BTF limits
vmlinux BTF has more than 64k types.
Its string section is also at the offset larger than 64k.
Adjust both limits to make in-kernel BTF verifier successfully parse in-kernel BTF.
Fixes: 69b693f0aefa ("bpf: btf: Introduce BPF Type Format (BTF)")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
| -rw-r--r-- | include/uapi/linux/btf.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/uapi/linux/btf.h b/include/uapi/linux/btf.h index 63ae4a39e58b..c02dec97e1ce 100644 --- a/include/uapi/linux/btf.h +++ b/include/uapi/linux/btf.h @@ -22,9 +22,9 @@ struct btf_header { }; /* Max # of type identifier */ -#define BTF_MAX_TYPE 0x0000ffff +#define BTF_MAX_TYPE 0x000fffff /* Max offset into the string section */ -#define BTF_MAX_NAME_OFFSET 0x0000ffff +#define BTF_MAX_NAME_OFFSET 0x00ffffff /* Max # of struct/union/enum members or func args */ #define BTF_MAX_VLEN 0xffff |