| // This test checks that we emit unwind info correctly for functions |
| // larger than 1MB. |
| // RUN: llvm-mc -triple aarch64-pc-win32 -filetype=obj %s -o %t.o |
| // RUN: llvm-readobj -S -r -u %t.o | FileCheck %s |
| |
| // CHECK: Section { |
| // CHECK: Number: 4 |
| // CHECK-NEXT: Name: .xdata (2E 78 64 61 74 61 00 00) |
| // CHECK-NEXT: VirtualSize: 0x0 |
| // CHECK-NEXT: VirtualAddress: 0x0 |
| // CHECK-NEXT: RawDataSize: 52 |
| // CHECK-NEXT: PointerToRawData: 0x3D0A20 |
| // CHECK-NEXT: PointerToRelocations: 0x0 |
| // CHECK-NEXT: PointerToLineNumbers: 0x0 |
| // CHECK-NEXT: RelocationCount: 0 |
| // CHECK-NEXT: LineNumberCount: 0 |
| // CHECK-NEXT: Characteristics [ (0x40300040) |
| // CHECK-NEXT: IMAGE_SCN_ALIGN_4BYTES (0x300000) |
| // CHECK-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA (0x40) |
| // CHECK-NEXT: IMAGE_SCN_MEM_READ (0x40000000) |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section { |
| // CHECK-NEXT: Number: 5 |
| // CHECK-NEXT: Name: .pdata (2E 70 64 61 74 61 00 00) |
| // CHECK-NEXT: VirtualSize: 0x0 |
| // CHECK-NEXT: VirtualAddress: 0x0 |
| // CHECK-NEXT: RawDataSize: 40 |
| // CHECK-NEXT: PointerToRawData: 0x3D0A54 |
| // CHECK-NEXT: PointerToRelocations: 0x3D0A7C |
| // CHECK-NEXT: PointerToLineNumbers: 0x0 |
| // CHECK-NEXT: RelocationCount: 10 |
| // CHECK-NEXT: LineNumberCount: 0 |
| // CHECK-NEXT: Characteristics [ (0x40300040) |
| // CHECK-NEXT: IMAGE_SCN_ALIGN_4BYTES (0x300000) |
| // CHECK-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA (0x40) |
| // CHECK-NEXT: IMAGE_SCN_MEM_READ (0x40000000) |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| // CHECK-LABEL: Relocations [ |
| // CHECK-NEXT: Section (1) .text { |
| // CHECK-NEXT: 0x186A04 IMAGE_REL_ARM64_BRANCH26 foo (14) |
| // CHECK-NEXT: 0x3D091C IMAGE_REL_ARM64_BRANCH26 foo (14) |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section (5) .pdata { |
| // CHECK-NEXT: 0x0 IMAGE_REL_ARM64_ADDR32NB .text (0) |
| // CHECK-NEXT: 0x4 IMAGE_REL_ARM64_ADDR32NB .xdata (9) |
| // CHECK-NEXT: 0x8 IMAGE_REL_ARM64_ADDR32NB .text (0) |
| // CHECK-NEXT: 0xC IMAGE_REL_ARM64_ADDR32NB .xdata (9) |
| // CHECK-NEXT: 0x10 IMAGE_REL_ARM64_ADDR32NB $L.text_1 (2) |
| // CHECK-NEXT: 0x14 IMAGE_REL_ARM64_ADDR32NB .xdata (9) |
| // CHECK-NEXT: 0x18 IMAGE_REL_ARM64_ADDR32NB $L.text_2 (3) |
| // CHECK-NEXT: 0x1C IMAGE_REL_ARM64_ADDR32NB .xdata (9) |
| // CHECK-NEXT: 0x20 IMAGE_REL_ARM64_ADDR32NB $L.text_3 (4) |
| // CHECK-NEXT: 0x24 IMAGE_REL_ARM64_ADDR32NB .xdata (9) |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| // CHECK-LABEL: UnwindInformation [ |
| // CHECK-NEXT: RuntimeFunction { |
| // CHECK-NEXT: Function: a (0x0) |
| // CHECK-NEXT: ExceptionRecord: .xdata (0x0) |
| // CHECK-NEXT: ExceptionData { |
| // CHECK-NEXT: FunctionLength: 1048572 |
| // CHECK-NEXT: Version: 0 |
| // CHECK-NEXT: ExceptionData: No |
| // CHECK-NEXT: EpiloguePacked: No |
| // CHECK-NEXT: EpilogueScopes: 0 |
| // CHECK-NEXT: ByteCodeLength: 4 |
| // CHECK-NEXT: Prologue [ |
| // CHECK-NEXT: 0xd561 ; str x30, [sp, #-16]! |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: EpilogueScopes [ |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: } |
| // CHECK-NEXT: RuntimeFunction { |
| // CHECK-NEXT: Function: a +0xFFFFC (0xFFFFC) |
| // CHECK-NEXT: ExceptionRecord: .xdata +0x8 (0x8) |
| // CHECK-NEXT: ExceptionData { |
| // CHECK-NEXT: FunctionLength: 551444 |
| // CHECK-NEXT: Version: 0 |
| // CHECK-NEXT: ExceptionData: No |
| // CHECK-NEXT: EpiloguePacked: Yes |
| // CHECK-NEXT: EpilogueOffset: 1 |
| // CHECK-NEXT: ByteCodeLength: 4 |
| // CHECK-NEXT: Prologue [ |
| // CHECK-NEXT: 0xe5 ; end_c |
| // CHECK-NEXT: 0xd561 ; str x30, [sp, #-16]! |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: Epilogue [ |
| // CHECK-NEXT: 0xd561 ; ldr x30, [sp], #16 |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: } |
| // CHECK-NEXT: RuntimeFunction { |
| // CHECK-NEXT: Function: b (0x186A10) |
| // CHECK-NEXT: ExceptionRecord: .xdata +0x10 (0x10) |
| // CHECK-NEXT: ExceptionData { |
| // CHECK-NEXT: FunctionLength: 1048572 |
| // CHECK-NEXT: Version: 0 |
| // CHECK-NEXT: ExceptionData: No |
| // CHECK-NEXT: EpiloguePacked: No |
| // CHECK-NEXT: EpilogueScopes: 0 |
| // CHECK-NEXT: ByteCodeLength: 8 |
| // CHECK-NEXT: Prologue [ |
| // CHECK-NEXT: 0xe1 ; mov fp, sp |
| // CHECK-NEXT: 0xc81e ; stp x19, x20, [sp, #240] |
| // CHECK-NEXT: 0x9f ; stp x29, x30, [sp, #-256]! |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: EpilogueScopes [ |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: } |
| // CHECK-NEXT: RuntimeFunction { |
| // CHECK-NEXT: Function: $L.text_2 +0x86A0C (0x286A0C) |
| // CHECK-NEXT: ExceptionRecord: .xdata +0x1C (0x1C) |
| // CHECK-NEXT: ExceptionData { |
| // CHECK-NEXT: FunctionLength: 1048572 |
| // CHECK-NEXT: Version: 0 |
| // CHECK-NEXT: ExceptionData: No |
| // CHECK-NEXT: EpiloguePacked: Yes |
| // CHECK-NEXT: EpilogueOffset: 0 |
| // CHECK-NEXT: ByteCodeLength: 8 |
| // CHECK-NEXT: Prologue [ |
| // CHECK-NEXT: 0xe5 ; end_c |
| // CHECK-NEXT: 0xe1 ; mov fp, sp |
| // CHECK-NEXT: 0xc81e ; stp x19, x20, [sp, #240] |
| // CHECK-NEXT: 0x9f ; stp x29, x30, [sp, #-256]! |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: } |
| // CHECK-NEXT: RuntimeFunction { |
| // CHECK-NEXT: Function: $L.text_3 +0x86A08 (0x386A08) |
| // CHECK-NEXT: ExceptionRecord: .xdata +0x28 (0x28) |
| // CHECK-NEXT: ExceptionData { |
| // CHECK-NEXT: FunctionLength: 302888 |
| // CHECK-NEXT: Version: 0 |
| // CHECK-NEXT: ExceptionData: No |
| // CHECK-NEXT: EpiloguePacked: Yes |
| // CHECK-NEXT: EpilogueOffset: 1 |
| // CHECK-NEXT: ByteCodeLength: 8 |
| // CHECK-NEXT: Prologue [ |
| // CHECK-NEXT: 0xe5 ; end_c |
| // CHECK-NEXT: 0xe1 ; mov fp, sp |
| // CHECK-NEXT: 0xc81e ; stp x19, x20, [sp, #240] |
| // CHECK-NEXT: 0x9f ; stp x29, x30, [sp, #-256]! |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: Epilogue [ |
| // CHECK-NEXT: 0xe1 ; mov sp, fp |
| // CHECK-NEXT: 0xc81e ; ldp x19, x20, [sp, #240] |
| // CHECK-NEXT: 0x9f ; ldp x29, x30, [sp], #256 |
| // CHECK-NEXT: 0xe4 ; end |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: } |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| |
| .text |
| // A simple function with an single epilog mirroring the prolog. |
| .global a |
| .p2align 2 |
| .seh_proc a |
| a: |
| str x30, [sp, #-16]! |
| .seh_save_reg_x x30, 16 |
| .seh_endprologue |
| .rept 400000 |
| nop |
| .endr |
| bl foo |
| .seh_startepilogue |
| ldr x30, [sp], #16 |
| .seh_save_reg_x x30, 16 |
| .seh_endepilogue |
| ret |
| .seh_endfunclet |
| .seh_endproc |
| |
| // Example 1 from https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling#function-fragments |
| .global b |
| .p2align 2 |
| .seh_proc b |
| b: |
| stp x29, lr, [sp, #-256]! |
| .seh_save_fplr_x 256 |
| stp x19, x20, [sp, #240] |
| .seh_save_regp x19, 240 |
| mov x29, fp |
| .seh_set_fp |
| .seh_endprologue |
| .rept 600000 |
| nop |
| .endr |
| bl foo |
| .seh_startepilogue |
| mov sp, x29 |
| .seh_set_fp |
| ldp x19, x20, [sp, #240] |
| .seh_save_regp x19, 240 |
| ldp x29, lr, [sp], #256 |
| .seh_save_fplr_x 256 |
| .seh_endepilogue |
| ret |
| .seh_endfunclet |
| .seh_endproc |
