blob: ca051b07b59ef16236cbbbd3e4c5304771a8a2da (
plain)
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
|
// RUN: llvm-mc -triple x86_64-apple-macos10.6 -filetype=obj %s -o %t.o
// RUN: llvm-objdump --macho --unwind-info --dwarf=frames %t.o | FileCheck %s
/// For functions whose unwind info cannot be encoded with compact unwind, make
/// sure that we encode them using DWARF unwind, and make sure we emit a compact
/// unwind entry that indicates that a DWARF encoding is being used.
_f:
.cfi_startproc
## This encodes DW_CFA_GNU_args_size which cannot be expressed using compact
## unwind, so we must use DWARF unwind instead.
.cfi_escape 0x2e, 0x10
ret
.cfi_endproc
_g:
.cfi_startproc
## This encodes DW_CFA_GNU_args_size which cannot be expressed using compact
## unwind, so we must use DWARF unwind instead.
.cfi_escape 0x2e, 0x10
ret
.cfi_endproc
// CHECK: Contents of __compact_unwind section:
// CHECK: Entry at offset 0x0:
// CHECK: start: 0x[[#%x,F:]] _f
// CHECK: length: 0x1
// CHECK: compact encoding: 0x04000000
// CHECK: Entry at offset 0x20:
// CHECK: start: 0x[[#%x,G:]] _g
// CHECK: length: 0x1
// CHECK: compact encoding: 0x04000000
// CHECK: .eh_frame contents:
// CHECK: 00000000 00000014 00000000 CIE
// CHECK: Format: DWARF32
// CHECK: Version: 1
// CHECK: Augmentation: "zR"
// CHECK: Code alignment factor: 1
// CHECK: Data alignment factor: -8
// CHECK: Return address column: 16
// CHECK: Augmentation data: 10
// CHECK: FDE cie=00000000 pc=[[#%.8x,F]]...
// CHECK: Format: DWARF32
// CHECK: DW_CFA_GNU_args_size: +16
// CHECK: FDE cie=00000000 pc=[[#%.8x,G]]...
// CHECK: Format: DWARF32
// CHECK: DW_CFA_GNU_args_size: +16
|
