# REQUIRES: x86 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o # RUN: echo '.tbss; .globl c; c: .zero 4' | llvm-mc -filetype=obj -triple=x86_64 - -o %t1.o # RUN: ld.lld -shared -soname=t1.so %t1.o -o %t1.so # RUN: ld.lld -shared %t.o %t1.o -o %t.so # RUN: llvm-readobj -r -x .got %t.so | FileCheck --check-prefix=GD-RELA %s # RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t.so | FileCheck --check-prefix=GD %s # RUN: ld.lld -shared %t.o %t1.o -o %t-rel.so -z rel # RUN: llvm-readobj -r -x .got %t-rel.so | FileCheck --check-prefix=GD-REL %s # RUN: ld.lld %t.o %t1.o -o %t # RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s # RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s # RUN: ld.lld %t.o %t1.so -o %t # RUN: llvm-readobj -r %t | FileCheck --check-prefix=IE-REL %s # RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t | FileCheck --check-prefix=IE %s # GD-RELA: .rela.dyn { # GD-RELA-NEXT: 0x23D0 R_X86_64_TLSDESC - 0xB # GD-RELA-NEXT: 0x23B0 R_X86_64_TLSDESC a 0x0 # GD-RELA-NEXT: 0x23C0 R_X86_64_TLSDESC c 0x0 # GD-RELA-NEXT: } # GD-RELA: Hex dump of section '.got': # GD-RELA-NEXT: 0x000023b0 00000000 00000000 00000000 00000000 # GD-RELA-NEXT: 0x000023c0 00000000 00000000 00000000 00000000 # GD-RELA-NEXT: 0x000023d0 00000000 00000000 00000000 00000000 # GD-REL: .rel.dyn { # GD-REL-NEXT: 0x23B8 R_X86_64_TLSDESC - # GD-REL-NEXT: 0x2398 R_X86_64_TLSDESC a # GD-REL-NEXT: 0x23A8 R_X86_64_TLSDESC c # GD-REL-NEXT: } # GD-REL: Hex dump of section '.got': # GD-REL-NEXT: 0x00002398 00000000 00000000 00000000 00000000 # GD-REL-NEXT: 0x000023a8 00000000 00000000 00000000 00000000 # GD-REL-NEXT: 0x000023b8 00000000 00000000 0b000000 00000000 ## &.rela.dyn[a]-pc = 0x23B0-0x12e7 = 4297 # GD: leaq 4297(%rip), %rax # GD-NEXT: 12e7: callq *(%rax) # GD-NEXT: movl %fs:(%rax), %eax ## &.rela.dyn[b]-pc = 0x23D0-0x12f3 = 4317 # GD-NEXT: leaq 4317(%rip), %rcx # GD-NEXT: 12f3: movq %rcx, %rax # GD-NEXT: callq *(%rax) # GD-NEXT: movl %fs:(%rax), %eax ## &.rela.dyn[c]-pc = 0x23C0-0x1302 = 4286 # GD-NEXT: leaq 4286(%rip), %r15 # GD-NEXT: 1302: movq %r15, %rax # GD-NEXT: callq *(%rax) # GD-NEXT: movl %fs:(%rax), %eax # NOREL: no relocations ## tpoff(a) = st_value(a) - tls_size = -8 # LE: movq $-8, %rax # LE-NEXT: nop # LE-NEXT: movl %fs:(%rax), %eax ## tpoff(b) = st_value(b) - tls_size = -5 # LE: movq $-5, %rcx # LE-NEXT: movq %rcx, %rax # LE-NEXT: nop # LE-NEXT: movl %fs:(%rax), %eax ## tpoff(c) = st_value(c) - tls_size = -4 # LE: movq $-4, %r15 # LE-NEXT: movq %r15, %rax # LE-NEXT: nop # LE-NEXT: movl %fs:(%rax), %eax # IE-REL: .rela.dyn { # IE-REL-NEXT: 0x202378 R_X86_64_TPOFF64 c 0x0 # IE-REL-NEXT: } ## a is relaxed to use LE. # IE: movq $-4, %rax # IE-NEXT: nop # IE-NEXT: movl %fs:(%rax), %eax # IE-NEXT: movq $-1, %rcx # IE-NEXT: movq %rcx, %rax # IE-NEXT: nop # IE-NEXT: movl %fs:(%rax), %eax ## &.rela.dyn[c]-pc = 0x202378 - 0x2012aa = 4302 # IE-NEXT: movq 4302(%rip), %r15 # IE-NEXT: 2012aa: movq %r15, %rax # IE-NEXT: nop # IE-NEXT: movl %fs:(%rax), %eax leaq a@tlsdesc(%rip), %rax call *a@tlscall(%rax) movl %fs:(%rax), %eax ## leaq/call may not be adjacent: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5665 ## Test non-RAX registers as well. leaq b@tlsdesc(%rip), %rcx movq %rcx, %rax call *b@tlscall(%rax) movl %fs:(%rax), %eax leaq c@tlsdesc(%rip), %r15 movq %r15, %rax call *c@tlscall(%rax) movl %fs:(%rax), %eax .section .tbss .globl a .zero 8 a: .zero 3 b: .zero 1