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// REQUIRES: arm
// RUN: llvm-mc -filetype=obj --arm-add-build-attributes -triple=armv7a-none-linux-gnueabi %s -o %t
// RUN: ld.lld %t -o %t2
// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi --no-show-raw-insn %t2 | FileCheck %s
// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXIDX %s
// RUN: llvm-readobj --program-headers --sections %t2 | FileCheck -check-prefix=CHECK-PT %s
// Test that inline unwinding table entries and references to .ARM.extab
// entries survive the re-ordering of the .ARM.exidx section
.syntax unified
// Will produce an ARM.exidx entry with inline unwinding instructions
.section .text.func1, "ax",%progbits
.global func1
func1:
.fnstart
bx lr
.save {r7, lr}
.setfp r7, sp, #0
.fnend
// Unwinding instructions for .text2 too large for an inline entry ARM.exidx
// entry. A separate .ARM.extab section is created to hold the unwind entries
// The .ARM.exidx table entry has a reference to the .ARM.extab section.
.section .text.func2, "ax",%progbits
.global func2
func2:
.fnstart
bx lr
.personality __gxx_personality_v0
.handlerdata
.long 0
.section .text.func2
.fnend
// Dummy implementation of personality routines to satisfy reference from
// exception tables
.section .text.__gcc_personality_v0, "ax", %progbits
.global __gxx_personality_v0
__gxx_personality_v0:
bx lr
.section .text.__aeabi_unwind_cpp_pr0, "ax", %progbits
.global __aeabi_unwind_cpp_pr0
__aeabi_unwind_cpp_pr0:
bx lr
.text
.global _start
_start:
bl func1
bl func2
bx lr
// CHECK: Disassembly of section .text:
// CHECK-EMPTY:
// CHECK-NEXT: <_start>:
// CHECK-NEXT: 11108: bl #4 <func1>
// CHECK-NEXT: bl #4 <func2>
// CHECK-NEXT: bx lr
// CHECK: <func1>:
// CHECK-NEXT: 11114: bx lr
// CHECK: <func2>:
// CHECK-NEXT: 11118: bx lr
// CHECK: <__gxx_personality_v0>:
// CHECK-NEXT: 1111c: bx lr
// CHECK: <__aeabi_unwind_cpp_pr0>:
// CHECK-NEXT: 11120: bx lr
// 100d4 + 0x1034 = 0x11108 = main (linker generated cantunwind)
// 100dc + 0x1038 = 0x11114 = func1 (inline unwinding data)
// CHECK-EXIDX: 100d4 34100000 01000000 38100000 08849780
// 100e4 + 0x1034 = 0x11118 = func2 (100e8 + 14 = 100fc = .ARM.extab entry)
// 100ec + 0x1030 = 0x1111c = __gxx_personality_v0 (linker generated cantunwind)
// CHECK-EXIDX-NEXT: 100e4 34100000 14000000 30100000 01000000
// 100f4 + 0x1030 = 1101c = sentinel
// CHECK-EXIDX-NEXT: 100f4 30100000 01000000
// CHECK-PT: Name: .ARM.exidx
// CHECK-PT-NEXT: Type: SHT_ARM_EXIDX (0x70000001)
// CHECK-PT-NEXT: Flags [
// CHECK-PT-NEXT: SHF_ALLOC
// CHECK-PT-NEXT: SHF_LINK_ORDER
// CHECK-PT-NEXT: ]
// CHECK-PT-NEXT: Address: 0x100D4
// CHECK-PT-NEXT: Offset: 0xD4
// CHECK-PT-NEXT: Size: 40
// CHECK-PT: Type: PT_ARM_EXIDX (0x70000001)
// CHECK-PT-NEXT: Offset: 0xD4
// CHECK-PT-NEXT: VirtualAddress: 0x100D4
// CHECK-PT-NEXT: PhysicalAddress: 0x100D4
// CHECK-PT-NEXT: FileSize: 40
// CHECK-PT-NEXT: MemSize: 40
// CHECK-PT-NEXT: Flags [ (0x4)
// CHECK-PT-NEXT: PF_R (0x4)
// CHECK-PT-NEXT: ]
// CHECK-PT-NEXT: Alignment: 4
// CHECK-PT-NEXT: }
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