diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-01-28 01:06:44 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-01-28 12:45:15 -0800 |
| commit | 49f67f393ff264e8d83f6fcec0728a6aa8eed102 (patch) | |
| tree | b3cad5557e5b3ade5b4d42bf63b14dddf66e49f5 /include/linux/bpf.h | |
| parent | 0f0e5f5bd5066c9ffaa006e26fc7d092b04d4088 (diff) | |
bpf: btf: Add BTF_FMODEL_SIGNED_ARG flag
s390x eBPF JIT needs to know whether a function return value is signed
and which function arguments are signed, in order to generate code
compliant with the s390x ABI.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230128000650.1516334-26-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux/bpf.h')
| -rw-r--r-- | include/linux/bpf.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 34551e4ebc72..c411c6bb86c4 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -899,8 +899,12 @@ enum bpf_cgroup_storage_type { /* The argument is a structure. */ #define BTF_FMODEL_STRUCT_ARG BIT(0) +/* The argument is signed. */ +#define BTF_FMODEL_SIGNED_ARG BIT(1) + struct btf_func_model { u8 ret_size; + u8 ret_flags; u8 nr_args; u8 arg_size[MAX_BPF_FUNC_ARGS]; u8 arg_flags[MAX_BPF_FUNC_ARGS]; |