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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-11-28 14:15:37 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-02 17:54:07 +1100 |
| commit | de3d098dd1fc635535e3689c5d4aa0684242adde (patch) | |
| tree | ecd7b7abca817735bcaa65839491cf578c6131a7 /arch/powerpc | |
| parent | f9231a996e229c13d23f907352c2cea84bd1c30a (diff) | |
| download | linux-stable-de3d098dd1fc635535e3689c5d4aa0684242adde.tar.gz linux-stable-de3d098dd1fc635535e3689c5d4aa0684242adde.tar.bz2 linux-stable-de3d098dd1fc635535e3689c5d4aa0684242adde.zip | |
powerpc/64: Add module check for ELF ABI version
Override the generic module ELF check to provide a check for the ELF ABI
version. This becomes important if we allow big-endian ELF ABI V2 builds
but it doesn't hurt to check now.
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/20221128041539.1742489-3-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/module_64.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index 7e45dc98df8a..ff045644f13f 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -31,6 +31,16 @@ this, and makes other things simpler. Anton? --RR. */ +bool module_elf_check_arch(Elf_Ehdr *hdr) +{ + unsigned long abi_level = hdr->e_flags & 0x3; + + if (IS_ENABLED(CONFIG_PPC64_ELF_ABI_V2)) + return abi_level == 2; + else + return abi_level < 2; +} + #ifdef CONFIG_PPC64_ELF_ABI_V2 static func_desc_t func_desc(unsigned long addr) |