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RISC-V: fix R_RISCV_ADD32/R_RISCV_SUB32 relocations 

The R_RISCV_ADD32/R_RISCV_SUB32 relocations should add/subtract the
address of the symbol (without overflow check), not its contents.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Andreas Schwab 2018-06-12 19:26:36 +02:00 committed by Palmer Dabbelt
parent 021c91791a
commit 781c8fe2da
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GPG Key ID: EF4CA1502CCBAB41
1 changed files with 2 additions and 2 deletions
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4
arch/riscv/kernel/module.c
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@ -263,14 +263,14 @@ static int apply_r_riscv_align_rela(struct module *me, u32 *location,
static int apply_r_riscv_add32_rela(struct module *me, u32 *location,
Elf_Addr v)
{
*(u32 *)location += (*(u32 *)v);
*(u32 *)location += (u32)v;
return 0;
}
static int apply_r_riscv_sub32_rela(struct module *me, u32 *location,
Elf_Addr v)
{
*(u32 *)location -= (*(u32 *)v);
*(u32 *)location -= (u32)v;
return 0;
}