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1## Test --add-symbol creates .symtab if it does not exist.2 3# RUN: yaml2obj --docnum=1 %s -o %t4 5## If a non-SHF_ALLOC SHT_STRTAB exists but SHT_SYMTAB does not, create .symtab6## and set its sh_link to the SHT_STRTAB.7# RUN: llvm-objcopy --remove-section=.symtab %t %t.no.symtab8# RUN: llvm-objcopy --add-symbol='abs1=1' %t.no.symtab %t.add.both9# RUN: llvm-readobj -S %t.add.both | FileCheck --check-prefix=SEC %s10# RUN: llvm-readelf -s %t.add.both | FileCheck %s11 12# SEC: Index: 113# SEC-NEXT: Name: .strtab14# SEC-NEXT: Type: SHT_STRTAB15# SEC: Index: 216# SEC-NEXT: Name: .shstrtab17# SEC-NEXT: Type: SHT_STRTAB18# SEC: Index: 319# SEC-NEXT: Name: .symtab20# SEC-NEXT: Type: SHT_SYMTAB21# SEC-NOT: }22# SEC: Link: 123 24# CHECK: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND25# CHECK-NEXT: 1: 0000000000000001 0 NOTYPE GLOBAL DEFAULT ABS abs126 27## Don't create .symtab if --add-symbol is not specified.28# RUN: llvm-objcopy --remove-section=.symtab --remove-section=.strtab %t %t.no29# RUN: llvm-objcopy %t.no %t.nop30# RUN: llvm-readobj -S %t.nop | FileCheck --implicit-check-not=.symtab --implicit-check-not=.strtab /dev/null31 32## Reuse the existing .shstrtab (section names) for symbol names.33## This may look strange but it works.34# RUN: llvm-objcopy --add-symbol='abs1=1' %t.no %t.add.symtab35# RUN: llvm-readobj -S %t.add.symtab | FileCheck --check-prefix=SEC2 %s --implicit-check-not=.strtab36# RUN: llvm-readelf -s %t.add.symtab | FileCheck %s37 38# SEC2: Index: 139# SEC2-NEXT: Name: .shstrtab40# SEC2-NEXT: Type: SHT_STRTAB41# SEC2: Index: 242# SEC2-NEXT: Name: .symtab43# SEC2-NEXT: Type: SHT_SYMTAB44# SEC2-NOT: }45# SEC2: Link: 146 47--- !ELF48FileHeader:49 Class: ELFCLASS6450 Data: ELFDATA2LSB51 Type: ET_REL52 Machine: EM_X86_6453Sections:54 - Name: .strtab55 Type: SHT_STRTAB56 - Name: .shstrtab57 Type: SHT_STRTAB58Symbols: []59...60 61## Check that we prefer the string table that is not the section header string table.62# RUN: yaml2obj --docnum=2 %s -o %t263# RUN: llvm-objcopy --remove-section=.symtab --remove-section=.strtab %t2 %t2.no64# RUN: llvm-objcopy --add-symbol='abs1=1' %t2.no %t2.add.symtab65# RUN: llvm-readobj -S %t2.add.symtab | FileCheck --check-prefix=SEC2 %s66# RUN: llvm-readelf -s %t2.add.symtab | FileCheck %s67 68--- !ELF69FileHeader:70 Class: ELFCLASS6471 Data: ELFDATA2LSB72 Type: ET_REL73 Machine: EM_X86_6474Sections:75 # .shstrtab is reordered before .strtab76 - Name: .shstrtab77 Type: SHT_STRTAB78 - Name: .strtab79 Type: SHT_STRTAB80Symbols: []81...82 83## Check the created .symtab does not link to .dynstr (SHF_ALLOC).84# RUN: yaml2obj --docnum=3 %s -o %t385# RUN: llvm-objcopy --remove-section=.symtab --remove-section=.strtab %t3 %t3.no86# RUN: llvm-objcopy --add-symbol='abs1=1' %t3.no %t3.not.dynstr87# RUN: llvm-readobj -S %t3.not.dynstr | FileCheck --check-prefix=SEC3 %s88 89# SEC3: Index: 390# SEC3-NEXT: Name: .shstrtab91# SEC3-NEXT: Type: SHT_STRTAB92# SEC3: Name: .symtab93# SEC3-NEXT: Type: SHT_SYMTAB94# SEC3-NOT: }95# SEC3: Link: 396 97--- !ELF98FileHeader:99 Class: ELFCLASS64100 Data: ELFDATA2LSB101 Type: ET_DYN102 Machine: EM_X86_64103DynamicSymbols:104 - Name: dummy105 Binding: STB_GLOBAL106Symbols: []107...108 109## Check the created .symtab is correct when there are program headers.110# RUN: yaml2obj --docnum=4 %s -o %t4111# RUN: llvm-objcopy %t4 %t4.add --add-symbol foo=1234112# RUN: llvm-readelf -s %t4.add | FileCheck --check-prefix=SEC4 %s113 114# SEC4: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 115# SEC4-NEXT: 1: 00000000000004d2 0 NOTYPE GLOBAL DEFAULT ABS foo116 117--- !ELF118FileHeader:119 Class: ELFCLASS64120 Data: ELFDATA2LSB121 Type: ET_DYN122 Machine: EM_X86_64123Sections:124 - Name: .foo125 Type: SHT_PROGBITS126ProgramHeaders:127 - Type: PT_LOAD128 FirstSec: .foo129 LastSec: .foo130...131