diff options
Diffstat (limited to 'test/DebugInfo/AArch64/eh_frame.s')
| -rw-r--r-- | test/DebugInfo/AArch64/eh_frame.s | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/DebugInfo/AArch64/eh_frame.s b/test/DebugInfo/AArch64/eh_frame.s new file mode 100644 index 0000000000..d8d6b6d932 --- /dev/null +++ b/test/DebugInfo/AArch64/eh_frame.s @@ -0,0 +1,48 @@ +// RUN: llvm-mc -triple aarch64-none-linux-gnu -filetype=obj %s -o %t +// RUN: llvm-objdump -s %t | FileCheck %s + .text + .globl foo + .type foo,@function +foo: + .cfi_startproc + ret + .cfi_endproc + +// The really key points we're checking here are: +// * Return register is x30. +// * Pointer format is 0x1b (GNU doesn't appear to understand others). + +// The rest is largely incidental, but not expected to change regularly. + +// Output is: + +// CHECK: Contents of section .eh_frame: +// CHECK-NEXT: 0000 10000000 00000000 017a5200 017c1e01 .........zR..|.. +// CHECK-NEXT: 0010 1b0c1f00 10000000 18000000 00000000 ................ + + +// Won't check the rest, it's rather incidental. +// 0020 04000000 00000000 ........ + + + +// The first CIE: +// ------------------- +// 10000000: length of first CIE = 0x10 +// 00000000: This is a CIE +// 01: version = 0x1 +// 7a 52 00: augmentation string "zR" -- pointer format is specified +// 01: code alignment factor 1 +// 7c: data alignment factor -4 +// 1e: return address register 30 (== x30). +// 01: 1 byte of augmentation +// 1b: pointer format 1b: DW_EH_PE_pcrel | DW_EH_PE_sdata4 +// 0c 1f 00: initial instructions: "DW_CFA_def_cfa x31 ofs 0" in this case + +// Next the FDE: +// ------------- +// 10000000: FDE length 0x10 +// 18000000: Uses CIE 0x18 backwards (only coincidentally same as above) +// 00000000: PC begin for this FDE is at 00000000 (relocation is applied here) +// 04000000: FDE applies up to PC begin+0x14 +// 00: Augmentation string length 0 for this FDE |