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

Add support for TLS LE symbol with addend, such as:
  lu12i.w $t0, %le_hi20(a + 0x8)
  ori	  $t0, $t0, %le_lo12(a + 0x8)

bfd/elfnn-loongarch.c

@@ -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;
 

ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp

@@ -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-*-*"] {

ld/testsuite/ld-loongarch-elf/tls-le.d

@@ -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

ld/testsuite/ld-loongarch-elf/tls-le.s

@@ -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