diff options
| author | Alan Maguire <alan.maguire@oracle.com> | 2024-06-20 10:17:29 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-06-21 14:45:07 -0700 |
| commit | d4e48e3dd45017abdd69a19285d197de897ef44f (patch) | |
| tree | a0f022a078e3faa261970df64601e3b446660f2e /include/linux/module.h | |
| parent | d1cf840854bb603c0718a011bc993f69f2df014e (diff) | |
module, bpf: Store BTF base pointer in struct module
...as this will allow split BTF modules with a base BTF
representation (rather than the full vmlinux BTF at time of
BTF encoding) to resolve their references to kernel types in a
way that is more resilient to small changes in kernel types.
This will allow modules that are not built every time the kernel
is to provide more resilient BTF, rather than have it invalidated
every time BTF ids for core kernel types change.
Fields are ordered to avoid holes in struct module.
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240620091733.1967885-3-alan.maguire@oracle.com
Diffstat (limited to 'include/linux/module.h')
| -rw-r--r-- | include/linux/module.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/module.h b/include/linux/module.h index ffa1c603163c..b79d926cae8a 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -509,7 +509,9 @@ struct module { #endif #ifdef CONFIG_DEBUG_INFO_BTF_MODULES unsigned int btf_data_size; + unsigned int btf_base_data_size; void *btf_data; + void *btf_base_data; #endif #ifdef CONFIG_JUMP_LABEL struct jump_entry *jump_entries; |