## For implicit dynamic symbol table sections, `Size` and/or `Content` ## fields can also be specified in YAML. Here we test the behavior in ## different cases. ## When no `Size` or `Content` is specified for a dynamic symbol table section, ## yaml2obj writes the default content. # RUN: yaml2obj --docnum=1 %s -o %t1 # RUN: llvm-readelf %t1 --dyn-symbols | FileCheck %s --check-prefix=CASE1 # CASE1: Symbol table '.dynsym' contains 2 entries: # CASE1-NEXT: Num: Value Size Type Bind Vis Ndx Name # CASE1-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND # CASE1-NEXT: 1: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND foo # CASE1-EMPTY: --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM DynamicSymbols: - Name: foo Binding: STB_GLOBAL ## Specifying both `Size` and symbols at the same time is not allowed for .dynsym. # RUN: not yaml2obj --docnum=2 %s 2>&1 | FileCheck %s --implicit-check-not=error --check-prefix=CASE2 # RUN: not yaml2obj --docnum=3 %s 2>&1 | FileCheck %s --implicit-check-not=error --check-prefix=CASE2 # CASE2: yaml2obj: error: cannot specify both `Size` and `DynamicSymbols` for symbol table section '.dynsym' --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Size: 0x100 - Name: .dynsym2 Type: SHT_DYNSYM Size: 0x100 DynamicSymbols: - Name: foo Binding: STB_GLOBAL --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Size: 0x100 - Name: .dynsym2 Type: SHT_DYNSYM Size: 0x100 DynamicSymbols: [] ## Specifying both `Content` and symbols at the same time is not allowed for .dynsym. # RUN: not yaml2obj --docnum=4 %s 2>&1 | FileCheck %s --implicit-check-not=error --check-prefix=CASE3 # RUN: not yaml2obj --docnum=5 %s 2>&1 | FileCheck %s --implicit-check-not=error --check-prefix=CASE3 # CASE3: yaml2obj: error: cannot specify both `Content` and `DynamicSymbols` for symbol table section '.dynsym' --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Content: "00" - Name: .dynsym2 Type: SHT_DYNSYM Content: "00" DynamicSymbols: - Name: foo Binding: STB_GLOBAL --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Content: "00" - Name: .dynsym2 Type: SHT_DYNSYM Content: "00" DynamicSymbols: [] ## Check we can use just `Content` to emit custom data in the symbol table section. # RUN: yaml2obj --docnum=6 %s -o %t4 # RUN: llvm-readobj --section-data -S %t4 | FileCheck %s --check-prefix=CASE4 # CASE4: Name: .dynsym # CASE4-NEXT: Type: SHT_DYNSYM # CASE4-NEXT: Flags [ # CASE4-NEXT: SHF_ALLOC # CASE4-NEXT: ] # CASE4-NEXT: Address: 0x0 # CASE4-NEXT: Offset: 0x40 # CASE4-NEXT: Size: 2 # CASE4-NEXT: Link: 0 # CASE4-NEXT: Info: 1 # CASE4-NEXT: AddressAlignment: 0 # CASE4-NEXT: EntrySize: 24 # CASE4-NEXT: SectionData ( # CASE4-NEXT: 0000: 0123 # CASE4-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Content: "0123" ## Check we can use just `Size` to emit custom data filled with zeroes ## in the symbol table section. # RUN: yaml2obj --docnum=7 %s -o %t5 # RUN: llvm-readobj --section-data -S %t5 | FileCheck %s --check-prefix=CASE5 # CASE5: Name: .dynsym # CASE5-NEXT: Type: SHT_DYNSYM # CASE5-NEXT: Flags [ # CASE5-NEXT: SHF_ALLOC # CASE5-NEXT: ] # CASE5-NEXT: Address: 0x0 # CASE5-NEXT: Offset: 0x40 # CASE5-NEXT: Size: 5 # CASE5-NEXT: Link: 0 # CASE5-NEXT: Info: 1 # CASE5-NEXT: AddressAlignment: 0 # CASE5-NEXT: EntrySize: 24 # CASE5-NEXT: SectionData ( # CASE5-NEXT: 0000: 00000000 00 # CASE5-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Size: 5 ## Check we can specify both `Size` and `Content` when size is greater ## than content size. In this case zeroes are added as padding ## after after the specified content. # RUN: yaml2obj --docnum=8 %s -o %t6 # RUN: llvm-readobj %t6 --section-data -S | FileCheck %s --check-prefix=CASE6 # CASE6: Name: .dynsym # CASE6-NEXT: Type: SHT_DYNSYM # CASE6-NEXT: Flags [ # CASE6-NEXT: SHF_ALLOC # CASE6-NEXT: ] # CASE6-NEXT: Address: 0x0 # CASE6-NEXT: Offset: 0x40 # CASE6-NEXT: Size: 4 # CASE6-NEXT: Link: 0 # CASE6-NEXT: Info: 1 # CASE6-NEXT: AddressAlignment: 0 # CASE6-NEXT: EntrySize: 24 # CASE6-NEXT: SectionData ( # CASE6-NEXT: 0000: 01230000 # CASE6-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Content: "0123" Size: 4 ## Check we can specify both `Size` and `Content` when size is ## equal to content size. # RUN: yaml2obj --docnum=9 %s -o %t7 # RUN: llvm-readobj --section-data -S %t7 | FileCheck %s --check-prefix=CASE7 # CASE7: Name: .dynsym # CASE7-NEXT: Type: SHT_DYNSYM # CASE7-NEXT: Flags [ # CASE7-NEXT: SHF_ALLOC # CASE7-NEXT: ] # CASE7-NEXT: Address: 0x0 # CASE7-NEXT: Offset: 0x40 # CASE7-NEXT: Size: 2 # CASE7-NEXT: Link: 0 # CASE7-NEXT: Info: 1 # CASE7-NEXT: AddressAlignment: 0 # CASE7-NEXT: EntrySize: 24 # CASE7-NEXT: SectionData ( # CASE7-NEXT: 0000: 0123 # CASE7-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Sections: - Name: .dynsym Type: SHT_DYNSYM Content: "0123" Size: 2