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libbpf: Permit 64bit relocation value

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Currently, the libbpf limits the relocation value to be 32bit
since all current relocations have such a limit. But with
BTF_KIND_ENUM64 support, the enum value could be 64bit.
So let us permit 64bit relocation value in libbpf.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220607062605.3716779-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song
2022-06-06 23:26:05 -07:00
committed by Andrii Nakryiko
parent 9a976c6b98
commit 23e3d8cf31
2 changed files with 29 additions and 24 deletions
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4
src/relo_core.h
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@@ -46,9 +46,9 @@ struct bpf_core_spec {
struct bpf_core_relo_res {
/* expected value in the instruction, unless validate == false */
__u32 orig_val;
__u64 orig_val;
/* new value that needs to be patched up to */
__u32 new_val;
__u64 new_val;
/* relocation unsuccessful, poison instruction, but don't fail load */
bool poison;
/* some relocations can't be validated against orig_val */