diff options
| -rw-r--r-- | bfd/elfnn-loongarch.c | 25 | ||||
| -rw-r--r-- | ld/emultempl/loongarchelf.em | 18 |
2 files changed, 39 insertions, 4 deletions
diff --git a/bfd/elfnn-loongarch.c b/bfd/elfnn-loongarch.c index 7436a14..987e5b9 100644 --- a/bfd/elfnn-loongarch.c +++ b/bfd/elfnn-loongarch.c @@ -3738,7 +3738,7 @@ loongarch_relax_delete_bytes (bfd *abfd, /* Relax pcalau12i,addi.d => pcaddi. */ static bool -loongarch_relax_pcala_addi (bfd *abfd, asection *sec, +loongarch_relax_pcala_addi (bfd *abfd, asection *sec, asection *sym_sec, Elf_Internal_Rela *rel_hi, bfd_vma symval, struct bfd_link_info *info, bool *again) { @@ -3747,7 +3747,24 @@ loongarch_relax_pcala_addi (bfd *abfd, asection *sec, uint32_t pca = bfd_get (32, abfd, contents + rel_hi->r_offset); uint32_t add = bfd_get (32, abfd, contents + rel_lo->r_offset); uint32_t rd = pca & 0x1f; + + /* This section's output_offset need to subtract the bytes of instructions + relaxed by the previous sections, so it needs to be updated beforehand. + size_input_section already took care of updating it after relaxation, + so we additionally update once here. */ + sec->output_offset = sec->output_section->size; bfd_vma pc = sec_addr (sec) + rel_hi->r_offset; + + /* If pc and symbol not in the same segment, add/sub segment alignment. + FIXME: if there are multiple readonly segments? */ + if (!(sym_sec->flags & SEC_READONLY)) + { + if (symval > pc) + pc -= info->maxpagesize; + else if (symval < pc) + pc += info->maxpagesize; + } + const uint32_t addi_d = 0x02c00000; const uint32_t pcaddi = 0x18000000; @@ -3889,7 +3906,6 @@ loongarch_elf_relax_section (bfd *abfd, asection *sec, || sec->sec_flg0 || (sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0 - || elf_seg_map (info->output_bfd) == NULL || (info->disable_target_specific_optimizations && info->relax_pass == 0) /* The exp_seg_relro_adjust is enum phase_enum (0x4), @@ -4009,14 +4025,15 @@ loongarch_elf_relax_section (bfd *abfd, asection *sec, break; case R_LARCH_PCALA_HI20: if (0 == info->relax_pass && (i + 4) <= sec->reloc_count) - loongarch_relax_pcala_addi (abfd, sec, rel, symval, info, again); + loongarch_relax_pcala_addi (abfd, sec, sym_sec, rel, symval, + info, again); break; case R_LARCH_GOT_PC_HI20: if (local_got && 0 == info->relax_pass && (i + 4) <= sec->reloc_count) { if (loongarch_relax_pcala_ld (abfd, sec, rel)) - loongarch_relax_pcala_addi (abfd, sec, rel, symval, + loongarch_relax_pcala_addi (abfd, sec, sym_sec, rel, symval, info, again); } break; diff --git a/ld/emultempl/loongarchelf.em b/ld/emultempl/loongarchelf.em index 4850feb..d81c99d 100644 --- a/ld/emultempl/loongarchelf.em +++ b/ld/emultempl/loongarchelf.em @@ -62,6 +62,24 @@ gld${EMULATION_NAME}_after_allocation (void) } } + /* The program header size of executable file may increase. */ + if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour + && !bfd_link_relocatable (&link_info)) + { + if (lang_phdr_list == NULL) + elf_seg_map (link_info.output_bfd) = NULL; + if (!_bfd_elf_map_sections_to_segments (link_info.output_bfd, + &link_info, + NULL)) + einfo (_("%F%P: map sections to segments failed: %E\n")); + } + + /* Adjust program header size and .eh_frame_hdr size before + lang_relax_sections. Without it, the vma of data segment may increase. */ + lang_do_assignments (lang_allocating_phase_enum); + lang_reset_memory_regions (); + lang_size_sections (NULL, true); + enum phase_enum *phase = &(expld.dataseg.phase); bfd_elf${ELFSIZE}_loongarch_set_data_segment_info (&link_info, (int *) phase); /* gld${EMULATION_NAME}_map_segments (need_layout); */ |