From 23c6e901c7112295d5ff0e1d90fed7be102433b9 Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Thu, 11 Apr 2024 17:23:25 +0100 Subject: [PATCH] openrisc: Add support for more module relocations 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 --- 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));