When testing modules in OpenRISC I found R_OR1K_AHI16 (signed adjusted
high 16-bit) and R_OR1K_SLO16 (split low 16-bit) relocations are used in
modules but not implemented yet.
This patch implements the relocations. I have tested with a few modules.
Signed-off-by: Stafford Horne <sho...@gmail.com>
---
arch/openrisc/kernel/module.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/openrisc/kernel/module.c b/arch/openrisc/kernel/module.c
index 292f0afe27b9..c9ff4c4a0b29 100644
--- a/arch/openrisc/kernel/module.c
+++ b/arch/openrisc/kernel/module.c
@@ -55,6 +55,16 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
value |= *location & 0xfc000000;
*location = value;
break;
+ case R_OR1K_AHI16:
+ /* Adjust the operand to match with a signed LO16. */
+ value += 0x8000;
+ *((uint16_t *)location + 1) = value >> 16;
+ break;
+ case R_OR1K_SLO16:
+ /* Split value lower 16-bits. */
+ value = ((value & 0xf800) << 10) | (value & 0x7ff);
+ *location = (*location & ~0x3e007ff) | value;
+ break;
default:
pr_err("module %s: Unknown relocation: %u\n",
me->name, ELF32_R_TYPE(rel[i].r_info));
--
2.44.0
