* [PATCH] LoongArch: ld: Add support for TLS LE symbol with addend
@ 2024-01-25 11:32 mengqinggang
0 siblings, 0 replies; only message in thread
From: mengqinggang @ 2024-01-25 11:32 UTC (permalink / raw)
To: binutils
Cc: xuchenghua, chenglulu, liuzhensong, cailulu, xry111, i.swmail,
maskray, luweining, wanglei, hejinyang, mengqinggang
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 | 5 ++---
.../ld-loongarch-elf/ld-loongarch-elf.exp | 1 +
ld/testsuite/ld-loongarch-elf/tls-le.d | 14 ++++++++++++++
ld/testsuite/ld-loongarch-elf/tls-le.s | 18 ++++++++++++++++++
4 files changed, 35 insertions(+), 3 deletions(-)
create mode 100644 ld/testsuite/ld-loongarch-elf/tls-le.d
create mode 100644 ld/testsuite/ld-loongarch-elf/tls-le.s
diff --git a/bfd/elfnn-loongarch.c b/bfd/elfnn-loongarch.c
index b2caa5fc3e1..cf497762b94 100644
--- a/bfd/elfnn-loongarch.c
+++ b/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;
diff --git a/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp b/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp
index 1b5994c7d84..3ae0d9df3b4 100644
--- a/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp
+++ b/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-*-*"] {
diff --git a/ld/testsuite/ld-loongarch-elf/tls-le.d b/ld/testsuite/ld-loongarch-elf/tls-le.d
new file mode 100644
index 00000000000..cbd6adb8b41
--- /dev/null
+++ b/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
diff --git a/ld/testsuite/ld-loongarch-elf/tls-le.s b/ld/testsuite/ld-loongarch-elf/tls-le.s
new file mode 100644
index 00000000000..2e6a9de42ac
--- /dev/null
+++ b/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
--
2.36.0
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2024-01-25 11:32 [PATCH] LoongArch: ld: Add support for TLS LE symbol with addend mengqinggang
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