1 files changed, 106 insertions, 0 deletions
diff --git a/test/ELF/arm-tls-gd32.s b/test/ELF/arm-tls-gd32.s
new file mode 100644
index 000000000000..206b65d05af9
--- /dev/null
+++ b/test/ELF/arm-tls-gd32.s
@@ -0,0 +1,106 @@
+// 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
+// REQUIRES: arm
+
+// Test the handling of the global-dynamic TLS model. Dynamic Loader finds
+// module index R_ARM_TLS_DTPMOD32 and the offset within the module
+// R_ARM_TLS_DTPOFF32. One of the variables is hidden which permits relaxation
+// to local dynamic
+
+ .text
+ .syntax unified
+ .globl  func
+ .p2align        2
+ .type   func,%function
+func:
+.L0:
+ nop
+.L1:
+ nop
+.L2:
+ nop
+
+ .p2align        2
+// Generate R_ARM_TLS_GD32 relocations
+// Allocates a pair of GOT entries dynamically relocated by R_ARM_TLS_DTPMOD32
+// and R_ARM_TLS_DTPOFF32 respectively. The literal contains the offset of the
+// first GOT entry from the place
+.Lt0: .word   x(TLSGD) + (. - .L0 - 8)
+.Lt1: .word   y(TLSGD) + (. - .L1 - 8)
+.Lt2: .word   z(TLSGD) + (. - .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-NEXT:  ]
+// SEC-NEXT: Address: 0x2000
+// 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: 0x2004
+// 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: 24
+
+// SEC: Dynamic Relocations {
+// SEC-NEXT: 0x205C R_ARM_TLS_DTPMOD32 -
+// SEC-NEXT: 0x204C R_ARM_TLS_DTPMOD32 x
+// SEC-NEXT: 0x2050 R_ARM_TLS_DTPOFF32 x
+// SEC-NEXT: 0x2054 R_ARM_TLS_DTPMOD32 y
+// SEC-NEXT: 0x2058 R_ARM_TLS_DTPOFF32 y
+
+
+// CHECK: Disassembly
+// 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
+// (0x2054 - 0x1010) + (0x1010 - 0x1004 - 8) = 0x1048
+// CHECK-NEXT:    1010:	48 10 00 00
+// (0x205c - 0x1014) + (0x1014 - 0x1008 - 8) = 0x104c
+// CHECK-NEXT:    1014:	4c 10 00 00
+