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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-11-28 14:15:36 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-02 17:54:07 +1100 |
| commit | f9231a996e229c13d23f907352c2cea84bd1c30a (patch) | |
| tree | 0fa18676b38f527206681d1f6ac431133c2b674d /include/linux/moduleloader.h | |
| parent | 2f228ee1ade5d8d1f26cf94863a36c5693023c58 (diff) | |
| download | lwn-f9231a996e229c13d23f907352c2cea84bd1c30a.tar.gz lwn-f9231a996e229c13d23f907352c2cea84bd1c30a.zip | |
module: add module_elf_check_arch for module-specific checks
The elf_check_arch() function is also used to test compatibility of
usermode binaries. Kernel modules may have more specific requirements,
for example powerpc would like to test for ABI version compatibility.
Add a weak module_elf_check_arch() that defaults to true, and call it
from elf_validity_check().
Signed-off-by: Jessica Yu <jeyu@kernel.org>
[np: added changelog, adjust name, rebase]
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221128041539.1742489-2-npiggin@gmail.com
Diffstat (limited to 'include/linux/moduleloader.h')
| -rw-r--r-- | include/linux/moduleloader.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h index 9e09d11ffe5b..7b4587a19189 100644 --- a/include/linux/moduleloader.h +++ b/include/linux/moduleloader.h @@ -13,6 +13,9 @@ * must be implemented by each architecture. */ +/* arch may override to do additional checking of ELF header architecture */ +bool module_elf_check_arch(Elf_Ehdr *hdr); + /* Adjust arch-specific sections. Return 0 on success. */ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, |