From: Zong Li <zong@andestech.com>
Date: Thu, 15 Mar 2018 08:50:48 +0000 (+0800)
Subject: RISC-V: Support ADD32 relocation type in kernel module
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8e691b16769d233f8a8b668dc7fad783459e4573;p=linux.git

RISC-V: Support ADD32 relocation type in kernel module

Signed-off-by: Zong Li <zong@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
---

diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 957933e669b16..73ea36c73d3b1 100644
--- a/arch/riscv/kernel/module.c
+++ b/arch/riscv/kernel/module.c
@@ -249,6 +249,13 @@ static int apply_r_riscv_align_rela(struct module *me, u32 *location,
 	return -EINVAL;
 }
 
+static int apply_r_riscv_add32_rela(struct module *me, u32 *location,
+				    Elf_Addr v)
+{
+	*(u32 *)location += (*(u32 *)v);
+	return 0;
+}
+
 static int (*reloc_handlers_rela[]) (struct module *me, u32 *location,
 				Elf_Addr v) = {
 	[R_RISCV_64]			= apply_r_riscv_64_rela,
@@ -267,6 +274,7 @@ static int (*reloc_handlers_rela[]) (struct module *me, u32 *location,
 	[R_RISCV_CALL]			= apply_r_riscv_call_rela,
 	[R_RISCV_RELAX]			= apply_r_riscv_relax_rela,
 	[R_RISCV_ALIGN]			= apply_r_riscv_align_rela,
+	[R_RISCV_ADD32]			= apply_r_riscv_add32_rela,
 };
 
 int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,