File: overlapping-sections-in-segments.test

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (46 lines) | stat: -rw-r--r-- 1,403 bytes parent folder | download | duplicates (21)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
## This test shows that llvm-objcopy does not baulk at overlapping sections
## where such sections are within segments.
## These don't really make sense, but the tool should still handle invalid
## inputs somehow.
# RUN: yaml2obj %s -o %t.o

## 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 and show that
## llvm-objcopy hasn't "unoverlapped" these sections because they are in segments.
# 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: 0x1001

# 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'
    ShOffset: 0x1001
ProgramHeaders:
  - Type:     PT_LOAD
    FileSize: 5
    Offset:   0x1000
    Align:    0x1000