llvm-project/lld/test/elf/ARM/entry-point.test

# 1. Check entry point address for ARM code - should be even.
# RUN: yaml2obj -format=elf -docnum 1 %s > %t-arm.o
# RUN: lld -flavor gnu -target arm -m armelf_linux_eabi -Bstatic \
# RUN: --noinhibit-exec %t-arm.o -o %t-arm
# RUN: llvm-readobj -file-headers %t-arm | FileCheck -check-prefix=ARM-ENTRY %s
#
# ARM-ENTRY: Entry: 0x400074

# 2. Check entry point address for Thumb code - should be odd.
# RUN: yaml2obj -format=elf -docnum 2 %s > %t-thm.o
# RUN: lld -flavor gnu -target arm -m armelf_linux_eabi -Bstatic \
# RUN: --noinhibit-exec %t-thm.o -o %t-thm
# RUN: llvm-readobj -file-headers %t-thm | FileCheck -check-prefix=THM-ENTRY %s
#
# THM-ENTRY: Entry: 0x400075

# 3. Check wrong entry point address align for ARM code.
# RUN: yaml2obj -format=elf -docnum 3 %s > %t-arm-wrong.o
# RUN: not lld -flavor gnu -target arm -m armelf_linux_eabi -Bstatic \
# RUN: --noinhibit-exec %t-arm-wrong.o -o %t-arm-wrong 2> %t-error
# FileCheck -check-prefix=ARM-WRONG %s < %t-error
#
# ARM-WRONG: Two least bits must be zero for ARM entry point

# arm.o
---
FileHeader:
  Class:           ELFCLASS32
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_ARM
  Flags:           [ EF_ARM_EABI_VER5 ]
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x0000000000000004
    Content:         04B02DE500B08DE20030A0E30300A0E100D04BE204B09DE41EFF2FE1
  - Name:            .data
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
    Content:         ''
  - Name:            .bss
    Type:            SHT_NOBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
Symbols:
  Global:
    - Name:            _start
      Type:            STT_FUNC
      Section:         .text

# thm.o
---
FileHeader:
  Class:           ELFCLASS32
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_ARM
  Flags:           [ EF_ARM_EABI_VER5 ]
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x0000000000000004
    Content:         80B400AF00231846BD465DF8047B7047
  - Name:            .data
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
    Content:         ''
  - Name:            .bss
    Type:            SHT_NOBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
Symbols:
  Global:
    - Name:            _start
      Type:            STT_FUNC
      Section:         .text
      Value:           0x0000000000000001

# arm-wrong.o
---
FileHeader:
  Class:           ELFCLASS32
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_ARM
  Flags:           [ EF_ARM_EABI_VER5 ]
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x0000000000000006
    Content:         04B02DE500B08DE20030A0E30300A0E100D04BE204B09DE41EFF2FE1
  - Name:            .data
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
    Content:         ''
  - Name:            .bss
    Type:            SHT_NOBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
Symbols:
  Global:
    - Name:            _start
      Type:            STT_FUNC
      Section:         .text
      Value:           0x0000000000000002
...