# This test is checking to ensure that if a section is removed in the presence # of a segment that the segment maintains its shape and properties and that any # section inside that segment maintains the relative positioning it had in the # segment. Note worthy is that .text3 keeps its offset despite it being # possible to place it after .text when .text2 is removed. # RUN: yaml2obj %s -o %t # RUN: llvm-objcopy -R .text2 %t %t2 # RUN: llvm-readobj --file-headers --program-headers --sections %t2 | FileCheck %s # RUN: od -t x1 -j 8192 -N 4 %t2 | FileCheck %s --check-prefix=DATA !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Machine: EM_X86_64 Sections: - Name: .text Type: SHT_PROGBITS Flags: [ SHF_ALLOC, SHF_EXECINSTR ] Address: 0x1000 AddressAlign: 0x1000 Size: 4096 - Name: .text2 Type: SHT_PROGBITS Flags: [ SHF_ALLOC, SHF_EXECINSTR ] Address: 0x2000 AddressAlign: 0x1000 Size: 4096 Content: "DEADBEEF" - Name: .text3 Type: SHT_PROGBITS Flags: [ SHF_ALLOC, SHF_EXECINSTR ] Address: 0x3000 AddressAlign: 0x1000 Size: 4096 ProgramHeaders: - Type: PT_LOAD Flags: [ PF_X, PF_R ] FirstSec: .text LastSec: .text3 ## TODO (grimar): without the following line (i.e. without an empty symbol table), ## llvm-objcopy adds an empty .strtab section. It doesn't look correct. Symbols: [] # Make sure that when we remove a section we overwrite it with zeros # DATA: {{^[^[:blank:]]+}} 00 00 00 00 #CHECK: SectionHeaderCount: 4 # CHECK: Sections [ # CHECK: Section { # CHECK-NEXT: Index: 0 # CHECK-NEXT: Name: (0) # CHECK-NEXT: Type: SHT_NULL (0x0) # CHECK-NEXT: Flags [ (0x0) # CHECK-NEXT: ] # CHECK-NEXT: Address: 0x0 # CHECK-NEXT: Offset: # CHECK-NEXT: Size: # CHECK-NEXT: Link: 0 # CHECK-NEXT: Info: 0 # CHECK-NEXT: AddressAlignment: 0 # CHECK-NEXT: EntrySize: 0 # CHECK-NEXT: } # CHECK-NEXT: Section { # CHECK-NEXT: Index: 1 # CHECK-NEXT: Name: .text # CHECK-NEXT: Type: SHT_PROGBITS # CHECK-NEXT: Flags [ # CHECK-NEXT: SHF_ALLOC # CHECK-NEXT: SHF_EXECINSTR # CHECK-NEXT: ] # CHECK-NEXT: Address: 0x1000 # CHECK-NEXT: Offset: 0x1000 # CHECK-NEXT: Size: # CHECK-NEXT: Link: 0 # CHECK-NEXT: Info: 0 # CHECK-NEXT: AddressAlignment: 4096 # CHECK-NEXT: EntrySize: 0 # CHECK-NEXT: } # CHECK-NEXT: Section { # CHECK-NEXT: Index: 2 # CHECK-NEXT: Name: .text3 # CHECK-NEXT: Type: SHT_PROGBITS (0x1) # CHECK-NEXT: Flags [ # CHECK-NEXT: SHF_ALLOC # CHECK-NEXT: SHF_EXECINSTR # CHECK-NEXT: ] # CHECK-NEXT: Address: 0x3000 # CHECK-NEXT: Offset: 0x3000 # CHECK-NEXT: Size: # CHECK-NEXT: Link: 0 # CHECK-NEXT: Info: 0 # CHECK-NEXT: AddressAlignment: 4096 # CHECK-NEXT: EntrySize: 0 # CHECK-NEXT: } # CHECK-NEXT: Section { # CHECK-NEXT: Index: 3 # CHECK-NEXT: Name: .shstrtab # CHECK-NEXT: Type: SHT_STRTAB (0x3) # CHECK-NEXT: Flags [ (0x0) # CHECK-NEXT: ] # CHECK-NEXT: Address: 0x0 # CHECK-NEXT: Offset: # CHECK-NEXT: Size: # CHECK-NEXT: Link: 0 # CHECK-NEXT: Info: 0 # CHECK-NEXT: AddressAlignment: 1 # CHECK-NEXT: EntrySize: 0 # CHECK-NEXT: } # CHECK-NEXT: ] #CHECK: ProgramHeaders [ #CHECK-NEXT: ProgramHeader { #CHECK-NEXT: Type: PT_LOAD (0x1) #CHECK-NEXT: Offset: 0x1000 #CHECK-NEXT: VirtualAddress: 0x0 #CHECK-NEXT: PhysicalAddress: 0x0 #CHECK-NEXT: FileSize: 12288 #CHECK-NEXT: MemSize: 12288 #CHECK-NEXT: Flags [ (0x5) #CHECK-NEXT: PF_R (0x4) #CHECK-NEXT: PF_X (0x1) #CHECK-NEXT: ] #CHECK-NEXT: Alignment: 4096 #CHECK-NEXT: } #CHECK-NEXT:]