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lld/trunk/test/ELF/tls-opt-x86_64-noplt.s
| // REQUIRES: x86 | |||||
| // Checks whether the TLS optimizations match the cases in Chapter 11 of | |||||
| // https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf | |||||
| // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o | |||||
| // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-opt-gdie.s -o %tso.o | |||||
| // RUN: ld.lld -shared %tso.o -o %t.so | |||||
| // RUN: ld.lld %t.o %t.so -o %t1 | |||||
| // RUN: llvm-readobj -r %t1 | FileCheck --check-prefix=RELOC %s | |||||
| // RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s | |||||
| // RELOC: Relocations [ | |||||
| // RELOC-NEXT: Section {{.*}} .rela.dyn { | |||||
| // RELOC-NEXT: 0x2020C0 R_X86_64_TPOFF64 tlsshared0 0x0 | |||||
| // RELOC-NEXT: 0x2020C8 R_X86_64_TPOFF64 tlsshared1 0x0 | |||||
| // RELOC-NEXT: } | |||||
| // RELOC-NEXT: ] | |||||
| // DISASM: _start: | |||||
| // Table 11.5: GD -> IE Code Transition (LP64) | |||||
| // DISASM-NEXT: 201000: 64 48 8b 04 25 00 00 00 00 movq %fs:0, %rax | |||||
| // DISASM-NEXT: 201009: 48 03 05 b0 10 00 00 addq 4272(%rip), %rax | |||||
| // DISASM-NEXT: 201010: 64 48 8b 04 25 00 00 00 00 movq %fs:0, %rax | |||||
| // DISASM-NEXT: 201019: 48 03 05 a8 10 00 00 addq 4264(%rip), %rax | |||||
| // Table 11.7: GD -> LE Code Transition (LP64) | |||||
| // DISASM-NEXT: 201020: 64 48 8b 04 25 00 00 00 00 movq %fs:0, %rax | |||||
| // DISASM-NEXT: 201029: 48 8d 80 f8 ff ff ff leaq -8(%rax), %rax | |||||
| // DISASM-NEXT: 201030: 64 48 8b 04 25 00 00 00 00 movq %fs:0, %rax | |||||
| // DISASM-NEXT: 201039: 48 8d 80 fc ff ff ff leaq -4(%rax), %rax | |||||
| // Table 11.9: LD -> LE Code Transition (LP64) | |||||
| // DISASM-NEXT: 201040: 66 66 66 66 64 48 8b 04 25 00 00 00 00 movq %fs:0, %rax | |||||
| // DISASM-NEXT: 20104d: 66 66 66 66 64 48 8b 04 25 00 00 00 00 movq %fs:0, %rax | |||||
| .type tls0,@object | |||||
| .section .tbss,"awT",@nobits | |||||
| .globl tls0 | |||||
| .align 4 | |||||
| tls0: | |||||
| .long 0 | |||||
| .size tls0, 4 | |||||
| .type tls1,@object | |||||
| .globl tls1 | |||||
| .align 4 | |||||
| tls1: | |||||
| .long 0 | |||||
| .size tls1, 4 | |||||
| .section .text | |||||
| .globl _start | |||||
| _start: | |||||
| // Table 11.5: GD -> IE Code Transition (LP64) | |||||
| .byte 0x66 | |||||
| leaq tlsshared0@tlsgd(%rip),%rdi | |||||
| .byte 0x66 | |||||
| rex64 | |||||
| call *__tls_get_addr@GOTPCREL(%rip) | |||||
| .byte 0x66 | |||||
| leaq tlsshared1@tlsgd(%rip),%rdi | |||||
| .byte 0x66 | |||||
| rex64 | |||||
| call *__tls_get_addr@GOTPCREL(%rip) | |||||
| // Table 11.7: GD -> LE Code Transition (LP64) | |||||
| .byte 0x66 | |||||
| leaq tls0@tlsgd(%rip),%rdi | |||||
| .byte 0x66 | |||||
| rex64 | |||||
| call *__tls_get_addr@GOTPCREL(%rip) | |||||
| .byte 0x66 | |||||
| leaq tls1@tlsgd(%rip),%rdi | |||||
| .byte 0x66 | |||||
| rex64 | |||||
| call *__tls_get_addr@GOTPCREL(%rip) | |||||
| // Table 11.9: LD -> LE Code Transition (LP64) | |||||
| leaq tls0@tlsld(%rip),%rdi | |||||
| call *__tls_get_addr@GOTPCREL(%rip) | |||||
| leaq tls1@tlsld(%rip),%rdi | |||||
| call *__tls_get_addr@GOTPCREL(%rip) | |||||