1// RUN: llvm-mc -triple aarch64-none-linux-gnu -filetype=obj %s -o %t
2// RUN: llvm-objdump -s %t | FileCheck %s
3        .text
4        .globl foo
5        .type foo,@function
6foo:
7        .cfi_startproc
8        ret
9        .cfi_endproc
10
11// The really key points we're checking here are:
12//  * Return register is x30.
13//  * Pointer format is 0x1b (GNU doesn't appear to understand others).
14
15// The rest is largely incidental, but not expected to change regularly.
16
17// Output is:
18
19// CHECK: Contents of section .eh_frame:
20// CHECK-NEXT: 0000 10000000 00000000 037a5200 017c1e01  .........zR..|..
21// CHECK-NEXT: 0010 1b0c1f00 10000000 18000000 00000000  ................
22
23
24// Won't check the rest, it's rather incidental.
25// 0020 04000000 00000000                    ........
26
27
28
29// The first CIE:
30// -------------------
31// 10000000: length of first CIE = 0x10
32// 00000000: This is a CIE
33// 03: version = 0x3
34// 7a 52 00: augmentation string "zR" -- pointer format is specified
35// 01: code alignment factor 1
36// 7c: data alignment factor -4
37// 1e: return address register 30 (== x30).
38// 01: 1 byte of augmentation
39// 1b: pointer format 1b: DW_EH_PE_pcrel | DW_EH_PE_sdata4
40// 0c 1f 00: initial instructions: "DW_CFA_def_cfa x31 ofs 0" in this case
41
42// Next the FDE:
43// -------------
44// 10000000: FDE length 0x10
45// 18000000: Uses CIE 0x18 backwards (only coincidentally same as above)
46// 00000000: PC begin for this FDE is at 00000000 (relocation is applied here)
47// 04000000: FDE applies up to PC begin+0x14
48// 00: Augmentation string length 0 for this FDE
49