program-header-align.yaml 1.27 KB
## Test the p_align field of a program header can be set explicitly or inferred
## from the maximum alignment of contained sections.

## Explicit Align has priority over section alignments.

# RUN: yaml2obj --docnum=1 %s -o %t
# RUN: llvm-readobj -l %t | FileCheck %s
# CHECK:      ProgramHeader {
# CHECK-NOT:  ProgramHeader {
# CHECK:        Alignment: 16
# CHECK-NEXT: }

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_EXEC
  Machine: EM_NONE
Sections:
  - Name:         .tdata
    Type:         SHT_PROGBITS
    AddressAlign: 4
  - Name:         .tbss
    Type:         SHT_NOBITS
    AddressAlign: 64
ProgramHeaders:
  - Type:  PT_TLS
    Align: 16
    Sections:
      - Section: .tdata
      - Section: .tbss

## If Align is not specified, p_align is inferred from the maximum alignment
## of contained sections.

# RUN: yaml2obj --docnum=2 %s -o %t
# RUN: llvm-readobj -l %t | FileCheck %s

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_EXEC
  Machine: EM_NONE
Sections:
  - Name:         .text
    Type:         SHT_PROGBITS
    AddressAlign: 4
  - Name:         .text.hot
    Type:         SHT_PROGBITS
    AddressAlign: 16
ProgramHeaders:
  - Type: PT_LOAD
    Sections:
      - Section: .text
      - Section: .text.hot