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| // REQUIRES: arm
// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
// RUN: ld.lld %t.o -o %t
// RUN: llvm-readobj -S --dyn-relocations %t | FileCheck --check-prefix=SEC %s
// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t | FileCheck %s
// Test the handling of the local exec TLS model. TLS can be resolved
// statically for an application. The code sequences assume a thread pointer
// in r9
.text
.syntax unified
.globl _start
.p2align 2
.type _start,%function
_start:
.p2align 2
// Generate R_ARM_TLS_LE32 relocations. These resolve statically to the offset
// of the variable from the thread pointer
.Lt0: .word x(TPOFF)
.Lt1: .word y(TPOFF)
.Lt2: .word z(TPOFF)
// __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-NEXT: ]
// SEC-NEXT: Address: 0x12120
// 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-NEXT: ]
// SEC-NEXT: Address: 0x12124
// SEC: Size: 8
// SEC: Dynamic Relocations {
// SEC-NEXT: }
// CHECK: Disassembly of section .text:
// CHECK-EMPTY:
// CHECK-NEXT: _start:
// offset of x from Thread pointer = (TcbSize + 0x0 = 0x8)
// CHECK-NEXT: 11114: 08 00 00 00
// offset of z from Thread pointer = (TcbSize + 0x8 = 0x10)
// CHECK-NEXT: 11118: 10 00 00 00
// offset of y from Thread pointer = (TcbSize + 0x4 = 0xc)
// CHECK-NEXT: 1111c: 0c 00 00 00
|