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## Test cases related to the value of the e_shnum field of the ELF header live here.
## Normally an object that does not have sections has e_shnum == 0.
## Also, e_shnum might be 0, when the the number of entries in the section
## header table is larger than or equal to SHN_LORESERVE (0xff00). In this case
## the real number of entries in the section header table is held in the sh_size
## member of the initial entry in the section header table.
## In the test case below we have an object that has e_shnum = 0 and the real
## number of sections is written to the sh_size member of the initial entry in
## the section header table. Check that we emit the `EShNum` key properly.
# RUN: yaml2obj %s -o %t1
# RUN: obj2yaml %t1 | FileCheck %s --check-prefix=PRESERVE
# PRESERVE: --- !ELF
# PRESERVE-NEXT: FileHeader:
# PRESERVE-NEXT: Class: ELFCLASS64
# PRESERVE-NEXT: Data: ELFDATA2LSB
# PRESERVE-NEXT: Type: ET_REL
# PRESERVE-NEXT: EShNum: 0x0
# PRESERVE-NEXT: Sections:
# PRESERVE-NEXT: - Type: SHT_NULL
# PRESERVE-NEXT: Size: 0x3
# PRESERVE-NEXT: ...
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
EShNum: 0x0
EShOff: [[ESHOFF=<none>]]
Sections:
- Type: SHT_NULL
## 3 sections total: SHT_NULL + 2 implicit sections: .strtab and .shstrtab.
Size: [[SIZE=0x3]]
## In the test case below we have an object with a non-zero section header table
## file offset and an initial entry in the section header table with sh_size of 0.
## Here we check that we are able to dump such objects properly.
# RUN: yaml2obj %s -DSIZE=0x0 -o %t2
# RUN: obj2yaml %t2 | FileCheck %s --check-prefix=NO-SECTIONS
# NO-SECTIONS: --- !ELF
# NO-SECTIONS-NEXT: FileHeader:
# NO-SECTIONS-NEXT: Class: ELFCLASS64
# NO-SECTIONS-NEXT: Data: ELFDATA2LSB
# NO-SECTIONS-NEXT: Type: ET_REL
# NO-SECTIONS-NEXT: EShNum: 0x0
## Note: yaml2obj will create the SHT_NULL section with sh_size = 0 implicitly.
# NO-SECTIONS-NEXT: ...
## In the test case below we have an object without a section header table and e_shnum == 0.
## Document how we dump it.
## FIXME: we should emit the `SectionHeaderTable` key with `NoHeaders=true` for this case.
# RUN: yaml2obj %s -DESHOFF=0x0 -o %t3
# RUN: obj2yaml %t3 | FileCheck %s --check-prefix=NO-HEADERS
# NO-HEADERS: --- !ELF
# NO-HEADERS-NEXT: FileHeader:
# NO-HEADERS-NEXT: Class: ELFCLASS64
# NO-HEADERS-NEXT: Data: ELFDATA2LSB
# NO-HEADERS-NEXT: Type: ET_REL
# NO-HEADERS-NEXT: ...
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