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 6 foo: 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
