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TheRock/compiler/amd-llvm/bolt/test/X86/phdr-load-order.test
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

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## Check that BOLT places new PT_LOAD segments right after existing PT_LOAD
## segments, maintaining ascending p_vaddr order.
# RUN: split-file %s %t
# RUN: yaml2obj %t/yaml -o %t.exe --max-size=0
# RUN: llvm-bolt %t.exe -o %t.bolt --allow-stripped
# RUN: llvm-readelf -lW %t.bolt | FileCheck %s
# All PT_LOAD segments must be contiguous and in ascending p_vaddr order.
# The new BOLT segment must follow the original PT_LOAD segments, not appear
# at the end of the program header table after non-LOAD segments.
# CHECK: Program Headers:
# CHECK-NEXT: Type {{.*}}
# CHECK-NEXT: LOAD
# CHECK-NEXT: LOAD
# CHECK-NEXT: LOAD
# CHECK-NEXT: LOAD
# CHECK-NOT: LOAD
#--- yaml
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Entry: 0x400000
ProgramHeaders:
- Type: PT_LOAD
Flags: [ PF_R, PF_X ]
FirstSec: .text
LastSec: .text
VAddr: 0x400000
Align: 0x1000
- Type: PT_LOAD
Flags: [ PF_R, PF_W ]
FirstSec: .data
LastSec: .data
VAddr: 0x500000
Align: 0x1000
- Type: PT_LOAD
Flags: [ PF_R ]
FirstSec: .rodata
LastSec: .rodata
VAddr: 0x600000
Align: 0x1000
- Type: PT_GNU_STACK
Flags: [ PF_R, PF_W ]
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
Content: C3
AddressAlign: 0x1
Address: 0x400000
- Name: .data
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_WRITE ]
Content: '00000000'
AddressAlign: 0x1
Address: 0x500000
- Name: .rodata
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC ]
Content: '00000000'
AddressAlign: 0x1
Address: 0x600000
...