diff options
Diffstat (limited to 'bfd/elfnn-riscv.c')
| -rw-r--r-- | bfd/elfnn-riscv.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/bfd/elfnn-riscv.c b/bfd/elfnn-riscv.c index 706dcb9..d14c29e 100644 --- a/bfd/elfnn-riscv.c +++ b/bfd/elfnn-riscv.c @@ -1482,9 +1482,21 @@ perform_relocation (const reloc_howto_type *howto, break; case R_RISCV_RVC_LUI: - if (!VALID_RVC_LUI_IMM (RISCV_CONST_HIGH_PART (value))) + if (RISCV_CONST_HIGH_PART (value) == 0) + { + /* Linker relaxation can convert an address equal to or greater than + 0x800 to slightly below 0x800. C.LUI does not accept zero as a + valid immediate. We can fix this by converting it to a C.LI. */ + bfd_vma insn = bfd_get (howto->bitsize, input_bfd, + contents + rel->r_offset); + insn = (insn & ~MATCH_C_LUI) | MATCH_C_LI; + bfd_put (howto->bitsize, input_bfd, insn, contents + rel->r_offset); + value = ENCODE_RVC_IMM (0); + } + else if (!VALID_RVC_LUI_IMM (RISCV_CONST_HIGH_PART (value))) return bfd_reloc_overflow; - value = ENCODE_RVC_LUI_IMM (RISCV_CONST_HIGH_PART (value)); + else + value = ENCODE_RVC_LUI_IMM (RISCV_CONST_HIGH_PART (value)); break; case R_RISCV_32: |