arm-thunk-linkerscript.s
2.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
// REQUIRES: arm
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
// RUN: echo "SECTIONS { \
// RUN: . = SIZEOF_HEADERS; \
// RUN: .text_low : { *(.text_low) *(.text_low2) } \
// RUN: .text_high 0x2000000 : { *(.text_high) *(.text_high2) } \
// RUN: } " > %t.script
// RUN: ld.lld --script %t.script %t -o %t2
// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t2 | FileCheck %s
// Simple test that we can support range extension thunks with linker scripts
.syntax unified
.section .text_low, "ax", %progbits
.thumb
.globl _start
_start: bx lr
.globl low_target
.type low_target, %function
low_target:
bl high_target
bl high_target2
.section .text_low2, "ax", %progbits
.thumb
.globl low_target2
.type low_target2, %function
low_target2:
bl high_target
bl high_target2
// CHECK: Disassembly of section .text_low:
// CHECK-EMPTY:
// CHECK-NEXT: _start:
// CHECK-NEXT: 94: 70 47 bx lr
// CHECK: low_target:
// CHECK-NEXT: 96: 00 f0 03 f8 bl #6
// CHECK-NEXT: 9a: 00 f0 06 f8 bl #12
// CHECK: __Thumbv7ABSLongThunk_high_target:
// CHECK-NEXT: a0: 40 f2 01 0c movw r12, #1
// CHECK-NEXT: a4: c0 f2 00 2c movt r12, #512
// CHECK-NEXT: a8: 60 47 bx r12
// CHECK: __Thumbv7ABSLongThunk_high_target2:
// CHECK-NEXT: aa: 40 f2 1d 0c movw r12, #29
// CHECK-NEXT: ae: c0 f2 00 2c movt r12, #512
// CHECK-NEXT: b2: 60 47 bx r12
// CHECK: low_target2:
// CHECK-NEXT: b4: ff f7 f4 ff bl #-24
// CHECK-NEXT: b8: ff f7 f7 ff bl #-18
.section .text_high, "ax", %progbits
.thumb
.globl high_target
.type high_target, %function
high_target:
bl low_target
bl low_target2
.section .text_high2, "ax", %progbits
.thumb
.globl high_target2
.type high_target2, %function
high_target2:
bl low_target
bl low_target2
// CHECK: Disassembly of section .text_high:
// CHECK-EMPTY:
// CHECK-NEXT: high_target:
// CHECK-NEXT: 2000000: 00 f0 02 f8 bl #4
// CHECK-NEXT: 2000004: 00 f0 05 f8 bl #10
// CHECK: __Thumbv7ABSLongThunk_low_target:
// CHECK-NEXT: 2000008: 40 f2 97 0c movw r12, #151
// CHECK-NEXT: 200000c: c0 f2 00 0c movt r12, #0
// CHECK-NEXT: 2000010: 60 47 bx r12
// CHECK: __Thumbv7ABSLongThunk_low_target2:
// CHECK-NEXT: 2000012: 40 f2 b5 0c movw r12, #181
// CHECK-NEXT: 2000016: c0 f2 00 0c movt r12, #0
// CHECK-NEXT: 200001a: 60 47 bx r12
// CHECK: high_target2:
// CHECK-NEXT: 200001c: ff f7 f4 ff bl #-24
// CHECK-NEXT: 2000020: ff f7 f7 ff bl #-18