diff options
| author | Daniel Müller <deso@posteo.net> | 2022-06-28 16:01:18 +0000 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-07-05 20:24:12 -0700 |
| commit | 3c660a5d86f4c01cf641bfea004a49f5860a5bed (patch) | |
| tree | cd5bd3ed487f7efc30b30213e92dfbe635f72df0 /tools | |
| parent | cfb5a2dbf1413a0086e987d99ad591b91fc9cf5c (diff) | |
bpf: Introduce TYPE_MATCH related constants/macros
In order to provide type match support we require a new type of
relocation which, in turn, requires toolchain support. Recent LLVM/Clang
versions support a new value for the last argument to the
__builtin_preserve_type_info builtin, for example.
With this change we introduce the necessary constants into relevant
header files, mirroring what the compiler may support.
Signed-off-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220628160127.607834-2-deso@posteo.net
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 1 | ||||
| -rw-r--r-- | tools/lib/bpf/bpf_core_read.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index ad9e7311c4cf..379e68fb866f 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -6786,6 +6786,7 @@ enum bpf_core_relo_kind { BPF_CORE_TYPE_SIZE = 9, /* type size in bytes */ BPF_CORE_ENUMVAL_EXISTS = 10, /* enum value existence in target kernel */ BPF_CORE_ENUMVAL_VALUE = 11, /* enum value integer value */ + BPF_CORE_TYPE_MATCHES = 12, /* type match in target kernel */ }; /* diff --git a/tools/lib/bpf/bpf_core_read.h b/tools/lib/bpf/bpf_core_read.h index fd48b1ff59ca..2308f4990e96 100644 --- a/tools/lib/bpf/bpf_core_read.h +++ b/tools/lib/bpf/bpf_core_read.h @@ -29,6 +29,7 @@ enum bpf_type_id_kind { enum bpf_type_info_kind { BPF_TYPE_EXISTS = 0, /* type existence in target kernel */ BPF_TYPE_SIZE = 1, /* type size in target kernel */ + BPF_TYPE_MATCHES = 2, /* type match in target kernel */ }; /* second argument to __builtin_preserve_enum_value() built-in */ |