From 4aad074c9c1d1302c504e1a26fe434878fe08cd5 Mon Sep 17 00:00:00 2001 From: Zong Li Date: Thu, 15 Mar 2018 16:50:49 +0800 Subject: [PATCH] RISC-V: Support SUB32 relocation type in kernel module Signed-off-by: Zong Li Signed-off-by: Palmer Dabbelt --- arch/riscv/kernel/module.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index 73ea36c73d3b..5dddba301d0a 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -256,6 +256,13 @@ static int apply_r_riscv_add32_rela(struct module *me, u32 *location, return 0; } +static int apply_r_riscv_sub32_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, @@ -275,6 +282,7 @@ static int (*reloc_handlers_rela[]) (struct module *me, u32 *location, [R_RISCV_RELAX] = apply_r_riscv_relax_rela, [R_RISCV_ALIGN] = apply_r_riscv_align_rela, [R_RISCV_ADD32] = apply_r_riscv_add32_rela, + [R_RISCV_SUB32] = apply_r_riscv_sub32_rela, }; int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, -- 2.30.2