# REQUIRES: riscv
# RUN: echo '.tbss; .globl b, c; b: .zero 4; c:' > %t.s
# RUN: echo '.globl __tls_get_addr; __tls_get_addr:' > %tga.s
## RISC-V psABI doesn't specify TLS relaxation. Though the code sequences are not
## relaxed, dynamic relocations can be omitted for LD->LE relaxation.
## LD uses the same relocation as GD: R_RISCV_GD_HI20, the difference is that it
## references a local symbol (.LANCHOR0).
# RUN: llvm-mc -filetype=obj -triple=riscv32 -position-independent %s -o %t.32.o
# RUN: llvm-mc -filetype=obj -triple=riscv32 %tga.s -o %tga.o
## rv32 LD
# RUN: ld.lld -shared %t.32.o -o %t.32.so
# RUN: llvm-readobj -r %t.32.so | FileCheck --check-prefix=LD32-REL %s
# RUN: llvm-readelf -x .got %t.32.so | FileCheck --check-prefix=LD32-GOT %s
# RUN: llvm-objdump -d --no-show-raw-insn %t.32.so | FileCheck --check-prefixes=LD,LD32 %s
## rv32 LD -> LE
# RUN: ld.lld %t.32.o %tga.o -o %t.32
# RUN: llvm-readelf -r %t.32 | FileCheck --check-prefix=NOREL %s
# RUN: llvm-readelf -x .got %t.32 | FileCheck --check-prefix=LE32-GOT %s
# RUN: llvm-objdump -d --no-show-raw-insn %t.32 | FileCheck --check-prefixes=LE,LE32 %s
# RUN: llvm-mc -filetype=obj -triple=riscv64 -position-independent %s -o %t.64.o
# RUN: llvm-mc -filetype=obj -triple=riscv64 %tga.s -o %tga.o
## rv64 LD
# RUN: ld.lld -shared %t.64.o -o %t.64.so
# RUN: llvm-readobj -r %t.64.so | FileCheck --check-prefix=LD64-REL %s
# RUN: llvm-readelf -x .got %t.64.so | FileCheck --check-prefix=LD64-GOT %s
# RUN: llvm-objdump -d --no-show-raw-insn %t.64.so | FileCheck --check-prefixes=LD,LD64 %s
## rv64 LD -> LE
# RUN: ld.lld %t.64.o %tga.o -o %t.64
# RUN: llvm-readelf -r %t.64 | FileCheck --check-prefix=NOREL %s
# RUN: llvm-readelf -x .got %t.64 | FileCheck --check-prefix=LE64-GOT %s
# RUN: llvm-objdump -d --no-show-raw-insn %t.64 | FileCheck --check-prefixes=LE,LE64 %s
## a@dtprel = st_value(a)-0x800 = 0xfffff808 is a link-time constant.
# LD32-REL: .rela.dyn {
# LD32-REL-NEXT: 0x22AC
# LD32-REL-NEXT: 0x22B0 R_RISCV_TLS_DTPMOD32 - 0x0
# LD32-REL-NEXT: }
# LD32-GOT: section '.got':
# LD32-GOT-NEXT: 0x000022a8 30220000 00000000 00000000 00f8ffff
# LD64-REL: .rela.dyn {
# LD64-REL-NEXT: 0x2448
# LD64-REL-NEXT: 0x2450 R_RISCV_TLS_DTPMOD64 - 0x0
# LD64-REL-NEXT: }
# LD64-GOT: section '.got':
# LD64-GOT-NEXT: 0x00002440 50230000 00000000 00000000 00000000
# LD64-GOT-NEXT: 0x00002450 00000000 00000000 00f8ffff ffffffff
## rv32: &DTPMOD(a) - . = 0x22b0 - 0x11d8 = 4096*1+216
## rv64: &DTPMOD(a) - . = 0x2450 - 0x12f8 = 4096*1+344
# LD32: 11d8: auipc a0, 0x1
# LD32-NEXT: addi a0, a0, 0xd8
# LD64: 12f8: auipc a0, 0x1
# LD64-NEXT: addi a0, a0, 0x158
# LD-NEXT: auipc ra, 0x0
# LD-NEXT: jalr 0x40(ra)
# NOREL: no relocations
## a is local - its DTPMOD/DTPREL slots are link-time constants.
## a@dtpmod = 1 (main module)
# LE32-GOT: section '.got':
# LE32-GOT-NEXT: 0x00012134 00000000 34210100 01000000 00f8ffff
# LE64-GOT: section '.got':
# LE64-GOT-NEXT: 0x000121e8 00000000 00000000 e8210100 00000000
# LE64-GOT-NEXT: 0x000121f8 01000000 00000000 00f8ffff ffffffff
## rv32: DTPMOD(.LANCHOR0) - . = 0x1213c - 0x11114 = 4096*1+40
## rv64: DTPMOD(.LANCHOR0) - . = 0x121f8 - 0x111c8 = 4096*1+48
# LE32: 11114: auipc a0, 0x1
# LE32-NEXT: addi a0, a0, 0x28
# LE64: 111c8: auipc a0, 0x1
# LE64-NEXT: addi a0, a0, 0x30
# LE-NEXT: auipc ra, 0x0
# LE-NEXT: jalr 0x18(ra)
la.tls.gd a0, .LANCHOR0
call __tls_get_addr@plt
lw a4, 0x0(a0)
lh a0, 0x4(a0)
## This is irrelevant to TLS. We use it to take 2 GOT slots to check DTPREL
## offsets are correct.
la a5, _GLOBAL_OFFSET_TABLE_
.section .tbss,"awT",@nobits
.set .LANCHOR0, . + 0
.zero 8
Codebase Browser
llvm