Commit 5f655322 authored Mar 14, 2017 by Mikulas Patocka Committed by Helge Deller Mar 15, 2017

parisc: support R_PARISC_SECREL32 relocation in modules



The parisc kernel doesn't work with CONFIG_MODVERSIONS since the commit
71810db2. It can't load modules with the
error: "module unix: Unknown relocation: 41".

The commit changes __kcrctab from 64-bit valus to 32-bit values. The
assembler generates R_PARISC_SECREL32 secrel relocation for them and the
module loader doesn't support this relocation.

This patch adds the R_PARISC_SECREL32 relocation to the module loader.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org	# v4.10+
Signed-off-by: Helge Deller <deller@gmx.de>

parent 95422dec

arch/parisc/kernel/module.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -620,6 +620,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
		*/
		*loc = fsel(val, addend);
		break;
		case R_PARISC_SECREL32:
		/* 32-bit section relative address. */
		*loc = fsel(val, addend);
		break;
		case R_PARISC_DPREL21L:
		/* left 21 bit of relative address */
		val = lrsel(val - dp, addend);
		@@ -807,6 +811,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
		*/
		*loc = fsel(val, addend);
		break;
		case R_PARISC_SECREL32:
		/* 32-bit section relative address. */
		*loc = fsel(val, addend);
		break;
		case R_PARISC_FPTR64:
		/* 64-bit function address */
		if(in_local(me, (void *)(val + addend))) {