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LoongArch: ld: Add support for TLS LE symbol with addend

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Add support for TLS LE symbol with addend, such as:
  lu12i.w $t0, %le_hi20(a + 0x8)
  ori	  $t0, $t0, %le_lo12(a + 0x8)
This commit is contained in:
mengqinggang
2024-01-25 09:32:14 +08:00
committed by liuzhensong
parent e14f7abaf8
commit a0aa6f4abd
4 changed files with 35 additions and 3 deletions
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5
bfd/elfnn-loongarch.c
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@@ -3494,14 +3494,12 @@ loongarch_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
relocation += rel->r_addend;
RELOCATE_CALC_PC32_HI20 (relocation, pc);
break;
case R_LARCH_TLS_LE_HI20_R:
relocation += rel->r_addend;
relocation -= elf_hash_table (info)->tls_sec->vma;
RELOCATE_TLS_TP32_HI20 (relocation);
break;
case R_LARCH_PCALA_LO12:
@@ -3682,6 +3680,7 @@ loongarch_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
case R_LARCH_TLS_LE64_HI12:
BFD_ASSERT (resolved_local && elf_hash_table (info)->tls_sec);
relocation += rel->r_addend;
relocation -= elf_hash_table (info)->tls_sec->vma;
break;

1
ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp
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@@ -34,6 +34,7 @@ if [istarget "loongarch64-*-*"] {
run_dump_test "local-ifunc-reloc"
run_dump_test "anno-sym"
run_dump_test "pcala64"
run_dump_test "tls-le"
}
if [istarget "loongarch32-*-*"] {

14
ld/testsuite/ld-loongarch-elf/tls-le.d Normal file
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@@ -0,0 +1,14 @@
#ld: --no-relax
#objdump: -d
.*:[ ]+file format .*
Disassembly of section .text:
[ ]*00000001200000e8 <_start>:
[ ]+1200000e8:[ ]+14000004[ ]+lu12i.w[ ]+\$a0, 0
[ ]+1200000ec:[ ]+03802085[ ]+ori[ ]+\$a1, \$a0, 0x8
[ ]+1200000f0:[ ]+14000004[ ]+lu12i.w[ ]+\$a0, 0
[ ]+1200000f4:[ ]+02c02085[ ]+addi.d[ ]+\$a1, \$a0, 8
[ ]+1200000f8:[ ]+4c000020[ ]+ret

18
ld/testsuite/ld-loongarch-elf/tls-le.s Normal file
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@@ -0,0 +1,18 @@
# Support for TLS LE symbols with addend
.text
.globl a
.section .tdata,"awT",@progbits
.align 2
.type a, @object
.size a, 4
a:
.word 123
.text
.global _start
_start:
lu12i.w $r4,%le_hi20(a + 0x8)
ori $r5,$r4,%le_lo12(a + 0x8)
lu12i.w $r4,%le_hi20_r(a + 0x8)
addi.d $r5,$r4,%le_lo12_r(a + 0x8)
jr $ra