// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi // RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared // RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s // RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s // REQUIRES: arm // Test the handling of the initial-exec TLS model. Relative location within // static TLS is a run-time constant computed by dynamic loader as a result // of the R_ARM_TLS_TPOFF32 relocation. .syntax unified .arm .globl func .type func,%function .p2align 2 func: .L0: nop .L1: nop .L2: nop .p2align 2 // Generate R_ARM_TLS_IE32 static relocations // Allocates a GOT entry dynamically relocated by R_ARM_TLS_TPOFF32 // literal contains the offset of the GOT entry from the place .Lt0: .word x(gottpoff) + (. - .L0 - 8) .Lt1: .word y(gottpoff) + (. - .L1 - 8) .Lt2: .word .TLSSTART(gottpoff) + (. - .L2 - 8) // __thread int x = 10 // __thread int y; // __thread int z __attribute((visibility("hidden"))) .hidden z .globl z .globl y .globl x .section .tbss,"awT",%nobits .p2align 2 .TLSSTART: .type z, %object z: .space 4 .type y, %object y: .space 4 .section .tdata,"awT",%progbits .p2align 2 .type x, %object x: .word 10 // SEC: Name: .tdata // SEC-NEXT: Type: SHT_PROGBITS // SEC-NEXT: Flags [ // SEC-NEXT: SHF_ALLOC // SEC-NEXT: SHF_TLS // SEC-NEXT: SHF_WRITE // SEC: Size: 4 // SEC: Name: .tbss // SEC-NEXT: Type: SHT_NOBITS // SEC-NEXT: Flags [ // SEC-NEXT: SHF_ALLOC // SEC-NEXT: SHF_TLS // SEC-NEXT: SHF_WRITE // SEC: Size: 8 // SEC: Name: .got // SEC-NEXT: Type: SHT_PROGBITS // SEC-NEXT: Flags [ // SEC-NEXT: SHF_ALLOC // SEC-NEXT: SHF_WRITE // SEC-NEXT: ] // SEC-NEXT: Address: 0x204C // SEC: Size: 12 // SEC: Dynamic Relocations { // SEC: 0x2054 R_ARM_TLS_TPOFF32 // SEC: 0x204C R_ARM_TLS_TPOFF32 x // SEC: 0x2050 R_ARM_TLS_TPOFF32 y // CHECK: Disassembly of section .text: // CHECK-NEXT: func: // CHECK-NEXT: 1000: 00 f0 20 e3 nop // CHECK-NEXT: 1004: 00 f0 20 e3 nop // CHECK-NEXT: 1008: 00 f0 20 e3 nop // (0x204c - 0x100c) + (0x100c - 0x1000 - 8) = 0x1044 // CHECK: 100c: 44 10 00 00 // (0x2050 - 0x1010) + (0x1010 - 0x1004 - 8) = 0x1044 // CHECK-NEXT: 1010: 44 10 00 00 // (0x2054 - 0x1014) + (0x1014 - 0x1008 - 8) = 0x1044 // CHECK-NEXT: 1014: 44 10 00 00