| # 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: 0x22B4 |
| # LD32-REL-NEXT: 0x22AC R_RISCV_TLS_DTPMOD32 - 0x0 |
| # LD32-REL-NEXT: } |
| # LD32-GOT: section '.got': |
| # LD32-GOT-NEXT: 0x000022a8 30220000 00000000 00f8ffff 00000000 |
| |
| # LD64-REL: .rela.dyn { |
| # LD64-REL-NEXT: 0x2458 |
| # LD64-REL-NEXT: 0x2448 R_RISCV_TLS_DTPMOD64 - 0x0 |
| # LD64-REL-NEXT: } |
| # LD64-GOT: section '.got': |
| # LD64-GOT-NEXT: 0x00002440 50230000 00000000 00000000 00000000 |
| # LD64-GOT-NEXT: 0x00002450 00f8ffff ffffffff 00000000 00000000 |
| |
| ## rv32: &DTPMOD(a) - . = 0x22ac - 0x11d8 = 4096*1+212 |
| ## rv64: &DTPMOD(a) - . = 0x2448 - 0x12f8 = 4096*1+336 |
| # LD32: 11d8: auipc a0, 1 |
| # LD32-NEXT: addi a0, a0, 212 |
| # LD64: 12f8: auipc a0, 1 |
| # LD64-NEXT: addi a0, a0, 336 |
| # LD-NEXT: auipc ra, 0 |
| # LD-NEXT: jalr 64(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 01000000 00f8ffff 34210100 |
| |
| # LE64-GOT: section '.got': |
| # LE64-GOT-NEXT: 0x000121e8 00000000 00000000 01000000 00000000 |
| # LE64-GOT-NEXT: 0x000121f8 00f8ffff ffffffff e8210100 00000000 |
| |
| ## rv32: DTPMOD(.LANCHOR0) - . = 0x12138 - 0x11114 = 4096*1+36 |
| ## rv64: DTPMOD(.LANCHOR0) - . = 0x121f0 - 0x111c8 = 4096*1+40 |
| # LE32: 11114: auipc a0, 1 |
| # LE32-NEXT: addi a0, a0, 36 |
| # LE64: 111c8: auipc a0, 1 |
| # LE64-NEXT: addi a0, a0, 40 |
| # LE-NEXT: auipc ra, 0 |
| # LE-NEXT: jalr 24(ra) |
| |
| la.tls.gd a0, .LANCHOR0 |
| call __tls_get_addr@plt |
| lw a4, 0(a0) |
| lh a0, 4(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 |