Commit de3d098d authored Nov 28, 2022 by Nicholas Piggin Committed by Michael Ellerman Dec 02, 2022

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

parent f9231a99

arch/powerpc/kernel/module_64.c

+10 −0

Original line number	Original line	Diff line number	Diff line
	@@ -31,6 +31,16 @@
	this, and makes other things simpler. Anton?		this, and makes other things simpler. Anton?
	--RR. */		--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		#ifdef CONFIG_PPC64_ELF_ABI_V2

	static func_desc_t func_desc(unsigned long addr)		static func_desc_t func_desc(unsigned long addr)