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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
## Here we simulate an object with more than ~65k sections and check how we dump it.
## When an ELF object has SHN_LORESERVE (0xff00) or more sections, its e_shnum field
## should be zero and sh_size of the section header at index 0 is used
## to store the value. If the section name string table section index is
## greater than or equal to SHN_LORESERVE, then e_shstrndx field
## should have the value of SHN_XINDEX and sh_link of the section header
## at index 0 is used to store the value.
# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readelf --file-headers -S %t1 | FileCheck %s --check-prefix=GNU1
# GNU1: Number of section headers: 0 (3)
# GNU1: Section header string table index: 65535 (2)
# GNU1: There are 3 section headers, starting at offset 0x58
# RUN: llvm-readobj --file-headers %t1 | FileCheck %s --check-prefix=LLVM1
# LLVM1: SectionHeaderCount: 0 (3)
# LLVM1: StringTableSectionIndex: 65535 (2)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
EShNum: 0
EShStrNdx: 0xffff ## SHN_XINDEX
Sections:
- Type: SHT_NULL
Link: .shstrtab
Size: 0x3
## Another case is when e_shoff field set to zero, but not e_shstrndx.
## We want to show that this corrupt case is handled correctly.
# RUN: yaml2obj --docnum=2 %s -o %t2
# RUN: llvm-readelf --file-headers --sections %t2 2>&1 | \
# RUN: FileCheck %s -DFILE=%t2 --check-prefix=GNU2
# GNU2: Number of section headers: 0
# GNU2: Section header string table index: 65535 (corrupt: out of range)
# GNU2: There are 0 section headers, starting at offset 0x0:
# GNU2-EMPTY:
# GNU2-NEXT: Section Headers:
# GNU2-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
# GNU2-NEXT: warning: '[[FILE]]': e_shstrndx == SHN_XINDEX, but the section header table is empty
# GNU2-NEXT: Key to Flags:
# RUN: llvm-readobj --file-headers --sections %t2 | \
# RUN: FileCheck %s --check-prefix=LLVM2 --implicit-check-not="warning:"
# LLVM2: SectionHeaderCount: 0
# LLVM2: StringTableSectionIndex: 65535 (corrupt: out of range)
# LLVM2-NEXT: }
# LLVM2-NEXT: Sections [
# LLVM2-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
EShOff: 0
EShNum: 0
EShStrNdx: 0xffff ## SHN_XINDEX
Sections:
- Type: SHT_NULL
Link: .shstrtab
Size: 0x3
|
