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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.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
// 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: 0x2254
// SEC: Size: 12
// SEC: Dynamic Relocations {
// SEC: 0x225C R_ARM_TLS_TPOFF32
// SEC: 0x2254 R_ARM_TLS_TPOFF32 x
// SEC: 0x2258 R_ARM_TLS_TPOFF32 y
// CHECK: Disassembly of section .text:
// CHECK-EMPTY:
// CHECK-NEXT: func:
// CHECK-NEXT: 11e8: 00 f0 20 e3 nop
// CHECK-NEXT: 11ec: 00 f0 20 e3 nop
// CHECK-NEXT: 11f0: 00 f0 20 e3 nop
// (0x2254 - 0x11f4) + (0x11f4 - 0x11e8 - 8) = 0x1064
// CHECK: 11f4: 64 10 00 00
// (0x2258 - 0x11f8) + (0x11f8 - 0x11ec - 8) = 0x1064
// CHECK-NEXT: 11f8: 64 10 00 00
// (0x225c - 0x11f8) + (0x11f8 - 0x11f0 - 8) = 0x1064
// CHECK-NEXT: 11fc: 64 10 00 00
|