1// REQUIRES: arm
2// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
3// RUN: echo "SECTIONS {" > %t.script
4// RUN: echo "          .text_low 0x130 : { *(.text) }" >> %t.script
5// RUN: echo "          .text_high 0xf0000000 : AT(0x1000) { *(.text_high) }" >> %t.script
6// RUN: echo "       } " >> %t.script
7// RUN: ld.lld --script %t.script --pie --static %t -o %t2
8// RUN: llvm-objdump -d --triple=armv7a-none-linux-gnueabi --no-show-raw-insn %t2 | FileCheck %s
9
10// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t3
11// RUN: ld.lld --script %t.script --pie %t3 -o %t4
12// RUN: llvm-objdump -d --triple=thumbv7a-none-linux-gnueabi --no-show-raw-insn %t4 | FileCheck --check-prefix=CHECK-THUMB %s
13
14// Check that we can create Arm and Thumb v7a Position Independent Thunks that
15// can span the address space without triggering overflow errors. We use an
16// AT(0x1000) for .text_high to avoid creating an almost 4Gb size file.
17 .syntax unified
18 .text
19 .global _start
20 .type _start, %function
21_start:
22 bl high
23 bx lr
24
25 .section .text_high, "ax", %progbits
26 .global high
27 .type high, %function
28high:
29 bl _start
30 bx lr
31
32// ARMv7a instructions and relocations.
33
34// CHECK: Disassembly of section .text_low:
35// CHECK-EMPTY:
36// CHECK-NEXT: <_start>:
37// CHECK-NEXT:      130:       bl      #0 <__ARMV7PILongThunk_high>
38// CHECK-NEXT:      134:       bx      lr
39
40// CHECK: <__ARMV7PILongThunk_high>:
41// CHECK-NEXT:      138:       movw    r12, #65208
42// CHECK-NEXT:      13c:       movt    r12, #61439
43// 0x140 + 0xEFFF0000 + 0x0000FEB8 + 8 = 0xf0000000 = high
44// CHECK-NEXT:      140:       add     r12, r12, pc
45// CHECK-NEXT:      144:       bx      r12
46
47// CHECK: Disassembly of section .text_high:
48// CHECK-EMPTY:
49// CHECK-NEXT: <high>:
50// CHECK-NEXT: f0000000:       bl      #0 <__ARMV7PILongThunk__start>
51// CHECK-NEXT: f0000004:       bx      lr
52
53// CHECK: <__ARMV7PILongThunk__start>:
54// CHECK-NEXT: f0000008:       movw    r12, #280
55// CHECK-NEXT: f000000c:       movt    r12, #4096
56// 0xf0000010 + 0x10000000 + 0x0000118 + 8 = bits32(0x100000130),0x130 = _start
57// CHECK-NEXT: f0000010:       add     r12, r12, pc
58// CHECK-NEXT: f0000014:       bx      r12
59
60// Thumbv7a instructions and relocations
61// CHECK-THUMB: Disassembly of section .text_low:
62// CHECK-THUMB-EMPTY:
63// CHECK-THUMB-NEXT: <_start>:
64// CHECK-THUMB-NEXT:      130:       bl      #4
65// CHECK-THUMB-NEXT:      134:       bx      lr
66// CHECK-THUMB-NEXT:      136:       bmi     #-88
67
68// CHECK-THUMB: <__ThumbV7PILongThunk_high>:
69// CHECK-THUMB-NEXT:      138:       movw    r12, #65213
70// CHECK-THUMB-NEXT:      13c:       movt    r12, #61439
71// 0x140 + 0xEFFF0000 + 0x0000FEBD + 4 = 0xf0000001 = high
72// CHECK-THUMB-NEXT:      140:       add     r12, pc
73// CHECK-THUMB-NEXT:      142:       bx      r12
74
75// CHECK-THUMB: Disassembly of section .text_high:
76// CHECK-THUMB-EMPTY:
77// CHECK-THUMB-NEXT: <high>:
78// CHECK-THUMB-NEXT: f0000000:       bl      #4
79// CHECK-THUMB-NEXT: f0000004:       bx      lr
80
81// CHECK-THUMB: <__ThumbV7PILongThunk__start>:
82// CHECK-THUMB-NEXT: f0000008:       movw    r12, #285
83// CHECK-THUMB-NEXT: f000000c:       movt    r12, #4096
84// 0xf0000010 + 0x10000000 + 0x000011d +4 = bits32(0x100000131),0x131 = _start
85// CHECK-THUMB-NEXT: f0000010:       add     r12, pc
86// CHECK-THUMB-NEXT: f0000012:       bx      r12
87