1 # This test is checking to ensure that if a section is removed in the presence 2 # of a segment that the segment maintains its shape and properties and that any 3 # section inside that segment maintains the relative positioning it had in the 4 # segment. Note worthy is that .text3 keeps its offset despite it being 5 # possible to place it after .text when .text2 is removed. 6 7 # RUN: yaml2obj %s -o %t 8 # RUN: llvm-objcopy -R .text2 %t %t2 9 # RUN: llvm-readobj -file-headers -program-headers -sections %t2 | FileCheck %s 10 # RUN: od -t x1 -j 8192 %t2 | FileCheck %s --check-prefix=DATA 11 12 !ELF 13 FileHeader: 14 Class: ELFCLASS64 15 Data: ELFDATA2LSB 16 Type: ET_EXEC 17 Machine: EM_X86_64 18 Sections: 19 - Name: .text 20 Type: SHT_PROGBITS 21 Flags: [ SHF_ALLOC, SHF_EXECINSTR ] 22 Address: 0x1000 23 AddressAlign: 0x1000 24 Size: 4096 25 - Name: .text2 26 Type: SHT_PROGBITS 27 Flags: [ SHF_ALLOC, SHF_EXECINSTR ] 28 Address: 0x2000 29 AddressAlign: 0x1000 30 Size: 4096 31 Content: "DEADBEEF" 32 - Name: .text3 33 Type: SHT_PROGBITS 34 Flags: [ SHF_ALLOC, SHF_EXECINSTR ] 35 Address: 0x3000 36 AddressAlign: 0x1000 37 Size: 4096 38 ProgramHeaders: 39 - Type: PT_LOAD 40 Flags: [ PF_X, PF_R ] 41 Sections: 42 - Section: .text 43 - Section: .text2 44 - Section: .text3 45 46 # Make sure that when we remove a section we overwrite it with zeros 47 # DATA: 0020000 00 00 00 00 48 49 #CHECK: SectionHeaderCount: 6 50 51 # CHECK: Sections [ 52 # CHECK: Section { 53 # CHECK-NEXT: Index: 0 54 # CHECK-NEXT: Name: (0) 55 # CHECK-NEXT: Type: SHT_NULL (0x0) 56 # CHECK-NEXT: Flags [ (0x0) 57 # CHECK-NEXT: ] 58 # CHECK-NEXT: Address: 0x0 59 # CHECK-NEXT: Offset: 60 # CHECK-NEXT: Size: 61 # CHECK-NEXT: Link: 0 62 # CHECK-NEXT: Info: 0 63 # CHECK-NEXT: AddressAlignment: 0 64 # CHECK-NEXT: EntrySize: 0 65 # CHECK-NEXT: } 66 # CHECK-NEXT: Section { 67 # CHECK-NEXT: Index: 1 68 # CHECK-NEXT: Name: .text 69 # CHECK-NEXT: Type: SHT_PROGBITS 70 # CHECK-NEXT: Flags [ 71 # CHECK-NEXT: SHF_ALLOC 72 # CHECK-NEXT: SHF_EXECINSTR 73 # CHECK-NEXT: ] 74 # CHECK-NEXT: Address: 0x1000 75 # CHECK-NEXT: Offset: 0x1000 76 # CHECK-NEXT: Size: 77 # CHECK-NEXT: Link: 0 78 # CHECK-NEXT: Info: 0 79 # CHECK-NEXT: AddressAlignment: 4096 80 # CHECK-NEXT: EntrySize: 0 81 # CHECK-NEXT: } 82 # CHECK-NEXT: Section { 83 # CHECK-NEXT: Index: 2 84 # CHECK-NEXT: Name: .text3 85 # CHECK-NEXT: Type: SHT_PROGBITS (0x1) 86 # CHECK-NEXT: Flags [ 87 # CHECK-NEXT: SHF_ALLOC 88 # CHECK-NEXT: SHF_EXECINSTR 89 # CHECK-NEXT: ] 90 # CHECK-NEXT: Address: 0x3000 91 # CHECK-NEXT: Offset: 0x3000 92 # CHECK-NEXT: Size: 93 # CHECK-NEXT: Link: 0 94 # CHECK-NEXT: Info: 0 95 # CHECK-NEXT: AddressAlignment: 4096 96 # CHECK-NEXT: EntrySize: 0 97 # CHECK-NEXT: } 98 # CHECK-NEXT: Section { 99 # CHECK-NEXT: Index: 3 100 # CHECK-NEXT: Name: .symtab 101 # CHECK-NEXT: Type: SHT_SYMTAB (0x2) 102 # CHECK-NEXT: Flags [ (0x0) 103 # CHECK-NEXT: ] 104 # CHECK-NEXT: Address: 0x0 105 # CHECK-NEXT: Offset: 106 # CHECK-NEXT: Size: 107 # CHECK-NEXT: Link: 4 108 # CHECK-NEXT: Info: 1 109 # CHECK-NEXT: AddressAlignment: 8 110 # CHECK-NEXT: EntrySize: 24 111 # CHECK-NEXT: } 112 # CHECK-NEXT: Section { 113 # CHECK-NEXT: Index: 4 114 # CHECK-NEXT: Name: .strtab 115 # CHECK-NEXT: Type: SHT_STRTAB (0x3) 116 # CHECK-NEXT: Flags [ (0x0) 117 # CHECK-NEXT: ] 118 # CHECK-NEXT: Address: 0x0 119 # CHECK-NEXT: Offset: 120 # CHECK-NEXT: Size: 121 # CHECK-NEXT: Link: 0 122 # CHECK-NEXT: Info: 0 123 # CHECK-NEXT: AddressAlignment: 1 124 # CHECK-NEXT: EntrySize: 0 125 # CHECK-NEXT: } 126 # CHECK-NEXT: Section { 127 # CHECK-NEXT: Index: 5 128 # CHECK-NEXT: Name: .shstrtab 129 # CHECK-NEXT: Type: SHT_STRTAB (0x3) 130 # CHECK-NEXT: Flags [ (0x0) 131 # CHECK-NEXT: ] 132 # CHECK-NEXT: Address: 0x0 133 # CHECK-NEXT: Offset: 134 # CHECK-NEXT: Size: 135 # CHECK-NEXT: Link: 0 136 # CHECK-NEXT: Info: 0 137 # CHECK-NEXT: AddressAlignment: 1 138 # CHECK-NEXT: EntrySize: 0 139 # CHECK-NEXT: } 140 # CHECK-NEXT: ] 141 142 #CHECK: ProgramHeaders [ 143 #CHECK-NEXT: ProgramHeader { 144 #CHECK-NEXT: Type: PT_LOAD (0x1) 145 #CHECK-NEXT: Offset: 0x1000 146 #CHECK-NEXT: VirtualAddress: 0x0 147 #CHECK-NEXT: PhysicalAddress: 0x0 148 #CHECK-NEXT: FileSize: 12288 149 #CHECK-NEXT: MemSize: 12288 150 #CHECK-NEXT: Flags [ (0x5) 151 #CHECK-NEXT: PF_R (0x4) 152 #CHECK-NEXT: PF_X (0x1) 153 #CHECK-NEXT: ] 154 #CHECK-NEXT: Alignment: 4096 155 #CHECK-NEXT: } 156 #CHECK-NEXT:] 157
