Index: llvm/test/tools/llvm-readobj/many-sections.s =================================================================== --- llvm/test/tools/llvm-readobj/many-sections.s +++ llvm/test/tools/llvm-readobj/many-sections.s @@ -1,37 +1,57 @@ -## many-sections.elf-x86_64 is a file that was generated to simulate -## an object with more than ~65k sections. When an ELF object -## has SHN_LORESERVE (0xff00) or more sections, its e_shnum field +## 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. -## -## many-sections.elf-x86_64 has few sections to save disk -## space, but its e_shnum, e_shstrndx, sh_size and sh_link fields are set -## according to the above description, so that we can test the dumper. - -# RUN: llvm-readelf --file-headers -S %p/Inputs/many-sections.elf-x86_64 | \ -# RUN: FileCheck %s --check-prefix=GNU1 -# GNU1: Number of section headers: 0 (5) -# GNU1: Section header string table index: 65535 (3) -# GNU1: There are 5 section headers, starting at offset 0xb8 - -# RUN: llvm-readobj --file-headers %p/Inputs/many-sections.elf-x86_64 | \ -# RUN: FileCheck %s --check-prefix=LLVM1 -# LLVM1: SectionHeaderCount: 0 (5) -# LLVM1: StringTableSectionIndex: 65535 (3) - -## many-sections-stripped.elf-x86_64 is many-sections.elf-x86_64 with -## e_shoff field set to zero, but not e_shstrndx, to show that -## this corrupt case is handled correctly. - -# RUN: llvm-readelf --file-headers %p/Inputs/many-sections-stripped.elf-x86_64 | \ -# RUN: FileCheck %s --check-prefix=GNU2 + +# 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 + SHNum: 0 + SHStrNdx: 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 %t2 | FileCheck %s --check-prefix=GNU2 # GNU2: Number of section headers: 0 # GNU2: Section header string table index: 65535 (corrupt: out of range) -# RUN: llvm-readobj --file-headers %p/Inputs/many-sections-stripped.elf-x86_64 | \ -# RUN: FileCheck %s --check-prefix=LLVM2 +# RUN: llvm-readobj --file-headers %t2 | FileCheck %s --check-prefix=LLVM2 # LLVM2: SectionHeaderCount: 0 # LLVM2: StringTableSectionIndex: 65535 (corrupt: out of range) + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_REL + Machine: EM_X86_64 + SHOff: 0 + SHNum: 0 + SHStrNdx: 0xffff ## SHN_XINDEX +Sections: + - Type: SHT_NULL + Link: .shstrtab + Size: 0x3