From: chenmiao <chenmiao.ku@gmail.com>
Date: Fri, 5 Sep 2025 18:12:56 +0000 (+0000)
Subject: openrisc: Add R_OR1K_32_PCREL relocation type module support
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=9d0cb6d00be891586261a35da7f8c3c956825c39;p=users%2Fhch%2Fmisc.git

openrisc: Add R_OR1K_32_PCREL relocation type module support

To ensure the proper functioning of the jump_label test module, this patch
adds support for the R_OR1K_32_PCREL relocation type for any modules. The
implementation calculates the PC-relative offset by subtracting the
instruction location from the target value and stores the result at the
specified location.

Signed-off-by: chenmiao <chenmiao.ku@gmail.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
---

diff --git a/arch/openrisc/kernel/module.c b/arch/openrisc/kernel/module.c
index c9ff4c4a0b29..4ac4fbaa827c 100644
--- a/arch/openrisc/kernel/module.c
+++ b/arch/openrisc/kernel/module.c
@@ -55,6 +55,10 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 			value |= *location & 0xfc000000;
 			*location = value;
 			break;
+		case R_OR1K_32_PCREL:
+			value -= (uint32_t)location;
+			*location = value;
+			break;
 		case R_OR1K_AHI16:
 			/* Adjust the operand to match with a signed LO16.  */
 			value += 0x8000;