diff options
| author | Nelson Chu <nelson@rivosinc.com> | 2023-04-21 16:28:38 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson@rivosinc.com> | 2023-04-28 14:27:32 +0800 |
| commit | a48ddc3b572eb7fd9325867c4946f6bbb1f9b5b4 (patch) | |
| tree | 25eae6fd184e0946a71772e2ebec012d5b94e17c /bfd | |
| parent | e4452aa670e5cec9c78b241d3572c91170598965 (diff) | |
| download | gdb-a48ddc3b572eb7fd9325867c4946f6bbb1f9b5b4.zip gdb-a48ddc3b572eb7fd9325867c4946f6bbb1f9b5b4.tar.gz gdb-a48ddc3b572eb7fd9325867c4946f6bbb1f9b5b4.tar.bz2 | |
RISC-V: Relax R_RISCV_[PCREL_]LO12_I/S to R_RISCV_GPREL_I/S for undefined weak.
bfd/
*elfnn-riscv.c (_bfd_riscv_relax_lui): For undefined weak symbol,
just relax the R_RISCV_LO12_I/S to R_RISCV_GPREL_I/S, and then don't
update the rs1 to zero until relocate_section.
(_bfd_riscv_relax_pc): Likewise, but for R_RISCV_PCREL_LO12_I/S.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/elfnn-riscv.c | 55 |
1 files changed, 6 insertions, 49 deletions
diff --git a/bfd/elfnn-riscv.c b/bfd/elfnn-riscv.c index e90e36b..499f51e 100644 --- a/bfd/elfnn-riscv.c +++ b/bfd/elfnn-riscv.c @@ -4552,27 +4552,11 @@ _bfd_riscv_relax_lui (bfd *abfd, switch (ELFNN_R_TYPE (rel->r_info)) { case R_RISCV_LO12_I: - if (undefined_weak) - { - /* Change the RS1 to zero. */ - bfd_vma insn = bfd_getl32 (contents + rel->r_offset); - insn &= ~(OP_MASK_RS1 << OP_SH_RS1); - bfd_putl32 (insn, contents + rel->r_offset); - } - else - rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_I); + rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_I); return true; case R_RISCV_LO12_S: - if (undefined_weak) - { - /* Change the RS1 to zero. */ - bfd_vma insn = bfd_getl32 (contents + rel->r_offset); - insn &= ~(OP_MASK_RS1 << OP_SH_RS1); - bfd_putl32 (insn, contents + rel->r_offset); - } - else - rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_S); + rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_S); return true; case R_RISCV_HI20: @@ -4737,7 +4721,6 @@ _bfd_riscv_relax_pc (bfd *abfd ATTRIBUTE_UNUSED, bool undefined_weak) { struct riscv_elf_link_hash_table *htab = riscv_elf_hash_table (link_info); - bfd_byte *contents = elf_section_data (sec)->this_hdr.contents; bfd_vma gp = riscv_global_pointer_value (link_info); BFD_ASSERT (rel->r_offset + 4 <= sec->size); @@ -4830,39 +4813,13 @@ _bfd_riscv_relax_pc (bfd *abfd ATTRIBUTE_UNUSED, switch (ELFNN_R_TYPE (rel->r_info)) { case R_RISCV_PCREL_LO12_I: - if (undefined_weak) - { - /* Change the RS1 to zero, and then modify the relocation - type to R_RISCV_LO12_I. */ - bfd_vma insn = bfd_getl32 (contents + rel->r_offset); - insn &= ~(OP_MASK_RS1 << OP_SH_RS1); - bfd_putl32 (insn, contents + rel->r_offset); - rel->r_info = ELFNN_R_INFO (sym, R_RISCV_LO12_I); - rel->r_addend = hi_reloc.hi_addend; - } - else - { - rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_I); - rel->r_addend += hi_reloc.hi_addend; - } + rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_I); + rel->r_addend += hi_reloc.hi_addend; return true; case R_RISCV_PCREL_LO12_S: - if (undefined_weak) - { - /* Change the RS1 to zero, and then modify the relocation - type to R_RISCV_LO12_S. */ - bfd_vma insn = bfd_getl32 (contents + rel->r_offset); - insn &= ~(OP_MASK_RS1 << OP_SH_RS1); - bfd_putl32 (insn, contents + rel->r_offset); - rel->r_info = ELFNN_R_INFO (sym, R_RISCV_LO12_S); - rel->r_addend = hi_reloc.hi_addend; - } - else - { - rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_S); - rel->r_addend += hi_reloc.hi_addend; - } + rel->r_info = ELFNN_R_INFO (sym, R_RISCV_GPREL_S); + rel->r_addend += hi_reloc.hi_addend; return true; case R_RISCV_PCREL_HI20: |