parent-loop-check.test
1.52 KB
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# This test has a subtle purpose. Because of the specifics of the layout
# algorithm if we're not careful cycles can occur when we resolve the order
# that we should layout segments in. In this test we're making sure that the
# PT_LOAD segment won't set the PT_NOTE segment as the first to be laid out
# while the PT_NOTE segment sets the PT_LOAD load to be the first to be laid
# out. This problem becomes visible if the layout of the file changes due to
# the removal of a section. We use -O binary here because removing a section
# in this way won't cause the location of the PT_LOAD segment to change if we
# don't.
# RUN: yaml2obj %s -o %t
# RUN: llvm-objcopy -R .note -O binary %t %t2
# RUN: od -Ax -t x1 %t2 | FileCheck %s
!ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .note
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC ]
Address: 0x1000
AddressAlign: 0x1000
Content: "32323232"
Size: 32
- Name: .rodata
Flags: [ SHF_ALLOC ]
Type: SHT_PROGBITS
Address: 0x1020
Size: 4064
Content: "DEADBEEF"
ProgramHeaders:
- Type: PT_LOAD
Flags: [ PF_R ]
VAddr: 0x1000
PAddr: 0x1000
Sections:
- Section: .note
- Section: .rodata
- Type: PT_NOTE
Flags: [ PF_R ]
VAddr: 0x1000
PAddr: 0x1000
Sections:
- Section: .note
# CHECK: 000000 de ad be ef