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## This test shows that llvm-objcopy does not baulk at overlapping sections.
## These don't really make sense, but the tool should still handle invalid
## inputs somehow.
# RUN: yaml2obj %s -o %t.o
## First, check that the section header table appears immediately after the ELF
## header.
# RUN: llvm-readobj --file-headers %t.o | FileCheck %s --check-prefix=SHDRS-OFFSET
# SHDRS-OFFSET: SectionHeaderOffset: 0x40{{$}}
## Binary edit the section header sh_offset field of the second section to
## overlap the first one.
# RUN: %python -c "with open('%/t.o', 'r+b') as input: import struct; bytes = struct.pack('<Q', 0x1001); input.seek(216); input.write(bytes)"
## Sanity check that the binary editing modified the correct field.
# RUN: llvm-readobj --section-headers %t.o | FileCheck %s --check-prefix=VALIDATE
# VALIDATE: Name: .first
# VALIDATE: Offset: 0x1000
# VALIDATE: Name: .second
# VALIDATE: Offset: 0x1001
## Check that the contents are as expected before the copy.
# RUN: llvm-readobj -x .first -x .second %t.o | FileCheck %s --check-prefix=CONTENTS
## Now check that the section contents are still correct after the copy.
## Also characterize the behavior of llvm-objcopy in that it "unoverlaps" the
## two sections.
# RUN: llvm-objcopy %t.o %t2.o
# RUN: llvm-readobj --section-headers %t2.o | FileCheck %s
# RUN: llvm-readobj -x .first -x .second %t2.o | FileCheck %s --check-prefix=CONTENTS
# CHECK: Name: .first
# CHECK: Offset: 0x1000
# CHECK: Name: .second
# CHECK: Offset: 0x1004
# CONTENTS: Hex dump of section '.first':
# CONTENTS-NEXT: 0x00000000 01234567
# CONTENTS-EMPTY:
# CONTENTS-NEXT: Hex dump of section '.second':
# CONTENTS-NEXT: 0x00000000 23456789
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .first
Type: SHT_PROGBITS
Content: '01234567'
AddressAlign: 0x1000
- Name: .second
Type: SHT_PROGBITS
Content: '89abcdef'
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