sht-symtab-shndx.yaml
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## Check that yaml2obj is able to produce output
## when a symbol with section index SHN_XINDEX is used,
## but no SHT_SYMTAB_SHNDX section is defined.
# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readobj --symbols 2>&1 %t1 | FileCheck -DFILE=%t1 %s --check-prefix=CASE1
# CASE1: warning: '[[FILE]]': extended symbol index (1) is past the end of the SHT_SYMTAB_SHNDX section of size 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: bar
Type: SHT_PROGBITS
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## Check that yaml2obj keeps the SHT_SYMTAB_SHNDX section in the output
## even when symbol's section index value is low enough to not require the extended symtab.
## Also, check that symbols in .symtab still have the SHN_XINDEX index.
# RUN: yaml2obj --docnum=2 %s -o %t2
# RUN: llvm-readobj --sections --symbols --section-data 2>&1 %t2 | FileCheck %s --check-prefix=CASE2
# CASE2: Section {
# CASE2: Name: .symtab_shndx (1)
# CASE2-NEXT: Type: SHT_SYMTAB_SHNDX (0x12)
# CASE2: Name: .symtab
# CASE2: SectionData (
# CASE2-NEXT: 0000: 00000000 00000000 00000000 00000000
# CASE2-NEXT: 0010: 00000000 00000000 00000000 0300FFFF
## ^-- 0xFFFF here is a SHN_XINDEX.
# CASE2-NEXT: 0020: 00000000 00000000 00000000 00000000
# CASE2-NEXT: )
# CASE2: Symbol {
# CASE2: Name: bar (0)
# CASE2-NEXT: Value: 0x0
# CASE2-NEXT: Size: 0
# CASE2-NEXT: Binding: Local (0x0)
# CASE2-NEXT: Type: Section (0x3)
# CASE2-NEXT: Other: 0
# CASE2-NEXT: Section: bar (0x1)
# CASE2-NEXT: }
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: bar
Type: SHT_PROGBITS
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 1 ]
Link: .symtab
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## Check that yaml2obj allows producing broken SHT_SYMTAB_SHNDX section
## content (in the case below it contains 0xff as an index of a section,
## which is larger than the total number of sections in the file).
# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: llvm-readobj --symbols 2>&1 %t3 | FileCheck %s -DFILE=%t3 --check-prefix=CASE3
# CASE3: warning: '[[FILE]]': invalid section index: 255
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: bar
Type: SHT_PROGBITS
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 255 ]
Link: .symtab
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## Check that yaml2obj reports an error if a symbol index does not fit into 2 bytes.
# RUN: not yaml2obj --docnum=4 %s -o %t4 2>&1 | FileCheck %s --check-prefix=CASE4
# CASE4: error: out of range hex16 number
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Symbols:
- Type: STT_SECTION
Index: 65536
## Check we can set a custom sh_entsize for SHT_SYMTAB_SHNDX section.
# RUN: yaml2obj --docnum=5 %s -o %t5
# RUN: not llvm-readelf -S 2>&1 %t5 | FileCheck %s -DFILE=%t5 --check-prefix=CASE5
# CASE5: error: '[[FILE]]': section [index 1] has an invalid sh_entsize: 2
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0 ]
EntSize: 2