path: root/llvm/test/Object/invalid.test

## Check that llvm-objdump reports an error when
## .shstrtab has an invalid type.

# RUN: yaml2obj %s --docnum=1 -o %t1
# RUN: not llvm-objdump -s %t1 2>&1 | FileCheck %s --check-prefix=INVALIDERR

# INVALIDERR: Invalid data was encountered while parsing the file

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .shstrtab
    Type: SHT_PROGBITS

## Check that llvm-objdump reports an error when
## .shstrtab has an invalid zero-size.

# RUN: yaml2obj %s --docnum=2 -o %t2
# RUN: not llvm-objdump -s %t2 2>&1 | FileCheck %s --check-prefix=INVALIDERR

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .shstrtab
    Type: SHT_STRTAB
    Size: 0

## Check that llvm-objdump reports an error when .shstrtab has an invalid
## size that goes past the end of the file.

# RUN: not llvm-objdump -s %p/Inputs/invalid-strtab-size.elf 2>&1 \
# RUN:   | FileCheck %s --check-prefix=INVALIDERR

## Check that llvm-dwarfdump reports an error during relocation resolution
## when instead of expected SHT_RELA section it locates a section of a different type.

# RUN: yaml2obj %s --docnum=3 -o %t3
# RUN: not llvm-dwarfdump -debug-line %t3 2>&1 | FileCheck --check-prefix=RELA %s

# RELA: Section is not SHT_RELA

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name: .debug_line
    Type: SHT_PROGBITS
## The exact content does not matter here. We can use any minimal valid debug section
## which is a target for relocation. The idea is to trigger the code that reads the
## relocation's addend during relocation resolution. It should fail if called on
## a non-SHT_RELA section.
    Content: 380000000200210000000101FB0E0D00010101010000000100000100676C6F62616C2E63707000000000000009020000000000000000130237000101
  - Name: .rela.debug_line
    Type: SHT_REL
    Info: .debug_line
    Relocations:
      - Offset: 0x000000000000002E
        Type:   R_X86_64_64

## Check that llvm-objdump reports an error when it tries to dump section names
## and .shstrtab is not null-terminated.

# RUN: yaml2obj %s --docnum=4 -o %t4
# RUN: not llvm-objdump -s %t4 2>&1 | FileCheck --check-prefix=INVALIDERR %s

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .shstrtab
    Type: SHT_STRTAB
    Content: "11"

## Check that llvm-objdump reports an error when it tries to dump a symbol name and
## .strtab is not null-terminated.

# RUN: yaml2obj %s --docnum=5 -o %t5
# RUN: not llvm-objdump -syms %t5 2>&1 | FileCheck --check-prefix=NONULL %s

# NONULL: string table non-null terminated

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .strtab
    Type: SHT_STRTAB
    Content: "11"
Symbols:
  - Name: foo

## Check that llvm-readobj reports an error if .symtab has an invalid sh_entsize.

# RUN: yaml2obj %s --docnum=6 -o %t6
# RUN: not llvm-readobj --symbols %t6 2>&1 | FileCheck --check-prefix=INVALID-SYM-SIZE %s

# INVALID-SYM-SIZE: invalid sh_entsize

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .symtab
    Type: SHT_SYMTAB
    EntSize: 32
Symbols:
  - Name: foo

## Check that llvm-readobj reports an error if .dynsym has an invalid sh_entsize.

# RUN: yaml2obj %s --docnum=7 -o %t7
# RUN: not llvm-readobj --dyn-symbols %t7 2>&1 | FileCheck --check-prefix=INVALID-DYNSYM-SIZE %s

# INVALID-DYNSYM-SIZE: error: Invalid entity size

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .dynsym
    Type: SHT_DYNSYM
    EntSize: 32
DynamicSymbols:
  - Name: foo

## Check that llvm-readobj reports an error if .symtab has an invalid sh_link value,
## which is greater than number of sections.

# RUN: yaml2obj %s --docnum=8 -o %t8
# RUN: not llvm-readobj --symbols %t8 2>&1 | FileCheck --check-prefix=INVALID-SYMTAB-LINK %s

# INVALID-SYMTAB-LINK: invalid section index

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name: .symtab
    Type: SHT_SYMTAB
    Link: 0xFF

## Check that llvm-readobj reports an error when trying to dump sections
## when the e_shentsize field is broken.

# RUN: yaml2obj %s --docnum=9 -o %t9
# RUN: not llvm-readobj -S %t9 2>&1 | FileCheck --check-prefix=INVALID-SH-ENTSIZE %s

# INVALID-SH-ENTSIZE: invalid section header entry size (e_shentsize) in ELF header

--- !ELF
FileHeader:
  Class:     ELFCLASS64
  Data:      ELFDATA2LSB
  Type:      ET_REL
  Machine:   EM_X86_64
  SHEntSize: 1

## Check that llvm-readobj reports an error if .symtab has sh_size
## that is not a multiple of sh_entsize.

# RUN: yaml2obj %s --docnum=10 -o %t10
# RUN: not llvm-readobj --symbols %t10 2>&1 | FileCheck --check-prefix=INVALID-SYMTAB-SIZE %s

# INVALID-SYMTAB-SIZE: size is not a multiple of sh_entsize

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .symtab
    Type: SHT_SYMTAB
    Size: 1

## Test that llvm-readobj reports an error if SHT_SYMTAB_SHNDX section has
## invalid sh_size which should be:
## sizeof(.symtab_shndx) = (sizeof(.symtab) / entsize(.symtab)) * entsize(.symtab_shndx)

# RUN: yaml2obj %s --docnum=11 -o %t11
# RUN: not llvm-readobj --symbols %t11 2>&1 | FileCheck --check-prefix=INVALID-XINDEX-SIZE %s

# INVALID-XINDEX-SIZE: invalid section contents size

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_DYN
  Machine: EM_X86_64
Sections:
  - Name: .symtab_shndx
    Type: SHT_SYMTAB_SHNDX
    Size: 0x18
    EntSize: 4
    Link: .symtab

## Check that llvm-readobj reports an error if the e_phentsize field is broken.

# RUN: not llvm-readobj --program-headers %p/Inputs/invalid-e_shnum.elf 2>&1 | \
# RUN:  FileCheck --check-prefix=INVALID-PH-ENTSIZE %s

# INVALID-PH-ENTSIZE: invalid e_phentsize

## Check that llvm-readobj reports an error when we have no SHT_SYMTAB_SHNDX section,
## but have a symbol referencing it.

# RUN: not llvm-readobj --symbols %p/Inputs/invalid-ext-symtab-index.elf-x86-64 2>&1 | \
# RUN:   FileCheck --check-prefix=INVALID-EXT-SYMTAB-INDEX %s

# INVALID-EXT-SYMTAB-INDEX: index past the end of the symbol table

## Check that llvm-readobj reports an error if a relocation section
## has a broken sh_offset (past the end of the file).

# RUN: not llvm-readobj -r %p/Inputs/invalid-relocation-sec-sh_offset.elf-i386 2>&1 | \
# RUN:   FileCheck --check-prefix=INVALID-RELOC-SH-OFFSET %s
# RUN: not llvm-readobj -r %p/Inputs/invalid-relocation-sec-sh_offset.elf-x86-64 2>&1 | \
# RUN:   FileCheck --check-prefix=INVALID-RELOC-SH-OFFSET %s

# INVALID-RELOC-SH-OFFSET: invalid section offset

## Check that llvm-objdump reports an error when .shstrtab has a broken sh_offset
## so large that sh_offset + sh_size overflows the platform address size type.

# RUN: not llvm-readobj --symbols %p/Inputs/invalid-section-size2.elf 2>&1 | \
# RUN:   FileCheck --check-prefix=INVALID-SECTION-SIZE2 %s

# INVALID-SECTION-SIZE2: invalid section offset

## Check that llvm-readobj reports an error when trying to dump sections
## when the e_shnum field is broken (is greater than the actual number of sections).

# RUN: yaml2obj %s --docnum=12 -o %t12
# RUN: not llvm-readobj -S %t12 2>&1 | FileCheck --check-prefix=INVALID-SECTION-NUM %s

# INVALID-SECTION-NUM: section table goes past the end of file

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
  SHNum:   0xFF

## Check that llvm-readobj reports an error if a relocation contains an
## incorrect (too large) symbol index.

# RUN: yaml2obj %s --docnum=13 -o %t13
# RUN: not llvm-readobj -r %t13 2>&1 | FileCheck --check-prefix=INVALID-REL-SYM %s

# INVALID-REL-SYM: invalid section offset

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name: .rela.text
    Type: SHT_RELA
    Info: 0
    Relocations:
      - Offset: 0x0
        Type:   R_X86_64_64
        Symbol: 0xFFFFFF

## Check llvm-readobj does not crash on a truncated ELF.

## Create a truncated ELF object with ELFCLASSNONE class using echo.
## 0x7f, 'E', 'L', 'F', ELFCLASS64(2), ELFDATA2LSB(1),
## EV_CURRENT(1), ELFOSABI_LINUX(3), <padding zero bytes>, ET_REL(1), EM_NONE(0)
# RUN: echo -e -n "\x7f\x45\x4c\x46\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00" > %t11
# RUN: not llvm-readobj -r %t11 2>&1 | FileCheck --check-prefix=INVALID-BUFFER %s

# INVALID-BUFFER: Invalid buffer

# RUN: not llvm-readobj %p/Inputs/invalid-coff-header-too-small 2>&1 | FileCheck --check-prefix=COFF-HEADER %s
# COFF-HEADER: The file was not recognized as a valid object file