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| author | mengqinggang <mengqinggang@loongson.cn> | 2023-09-28 16:41:15 +0800 |
|---|---|---|
| committer | liuzhensong <liuzhensong@loongson.cn> | 2023-12-18 18:36:21 +0800 |
| commit | dc5f359ed6a36d2c895d89c3e4886f3a2b6d9232 (patch) | |
| tree | ca60c74de15fdc76c54e8eb3a7d881078f3585d7 /bfd/elfnn-loongarch.c | |
| parent | d51cd0f64c6d3bd235f140ed71cc2c3e0b87a5ff (diff) | |
| download | binutils-dc5f359ed6a36d2c895d89c3e4886f3a2b6d9232.zip binutils-dc5f359ed6a36d2c895d89c3e4886f3a2b6d9232.tar.gz binutils-dc5f359ed6a36d2c895d89c3e4886f3a2b6d9232.tar.bz2 | |
LoongArch: Add new relocation R_LARCH_CALL36
R_LARCH_CALL36 is used for medium code model function call pcaddu18i+jirl, and
these two instructions must adjacent.
The LoongArch ABI v2.20 at here: https://github.com/loongson/la-abi-specs.
Diffstat (limited to 'bfd/elfnn-loongarch.c')
| -rw-r--r-- | bfd/elfnn-loongarch.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/bfd/elfnn-loongarch.c b/bfd/elfnn-loongarch.c index 024c5d4..aa88ee8 100644 --- a/bfd/elfnn-loongarch.c +++ b/bfd/elfnn-loongarch.c @@ -780,6 +780,7 @@ loongarch_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, case R_LARCH_B16: case R_LARCH_B21: case R_LARCH_B26: + case R_LARCH_CALL36: if (h != NULL) { h->needs_plt = 1; @@ -1884,20 +1885,24 @@ loongarch_check_offset (const Elf_Internal_Rela *rel, ret; \ }) +/* Write immediate to instructions. */ + static bfd_reloc_status_type loongarch_reloc_rewrite_imm_insn (const Elf_Internal_Rela *rel, const asection *input_section ATTRIBUTE_UNUSED, reloc_howto_type *howto, bfd *input_bfd, bfd_byte *contents, bfd_vma reloc_val) { - int bits = bfd_get_reloc_size (howto) * 8; - uint32_t insn = bfd_get (bits, input_bfd, contents + rel->r_offset); - + /* Adjust the immediate based on alignment and + its position in the instruction. */ if (!loongarch_adjust_reloc_bitsfield (input_bfd, howto, &reloc_val)) return bfd_reloc_overflow; - insn = (insn & (uint32_t)howto->src_mask) - | ((insn & (~(uint32_t)howto->dst_mask)) | reloc_val); + int bits = bfd_get_reloc_size (howto) * 8; + uint64_t insn = bfd_get (bits, input_bfd, contents + rel->r_offset); + + /* Write immediate to instruction. */ + insn = (insn & ~howto->dst_mask) | (reloc_val & howto->dst_mask); bfd_put (bits, input_bfd, insn, contents + rel->r_offset); @@ -2120,6 +2125,7 @@ perform_relocation (const Elf_Internal_Rela *rel, asection *input_section, case R_LARCH_TLS_GD_PC_HI20: case R_LARCH_TLS_GD_HI20: case R_LARCH_PCREL20_S2: + case R_LARCH_CALL36: r = loongarch_check_offset (rel, input_section); if (r != bfd_reloc_ok) break; @@ -3127,9 +3133,10 @@ loongarch_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, break; /* New reloc types. */ + case R_LARCH_B16: case R_LARCH_B21: case R_LARCH_B26: - case R_LARCH_B16: + case R_LARCH_CALL36: unresolved_reloc = false; if (is_undefweak) { |