forked from OSchip/llvm-project
97 lines
2.4 KiB
ArmAsm
97 lines
2.4 KiB
ArmAsm
// REQUIRES: arm
|
|
// 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
|
|
|
|
// 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
|