Index: llvm/test/tools/llvm-readobj/elf-verdef-invalid.test =================================================================== --- /dev/null +++ llvm/test/tools/llvm-readobj/elf-verdef-invalid.test @@ -0,0 +1,236 @@ +## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_verdef sections. + +## Check that we report a warning when sh_link references a non-existent section. + +# RUN: yaml2obj %s --docnum=1 -o %t1 +# RUN: llvm-readobj -V %t1 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-LLVM -DFILE=%t1 +# RUN: not llvm-readelf -V %t1 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-GNU -DFILE=%t1 + +# INVALID-LINK-LLVM: warning: '[[FILE]]': invalid section linked to SHT_GNU_verdef section with index 1: invalid section index: 255 + +## TODO: llvm-readelf should also report a meaningful warning instead of an error. +# INVALID-LINK-GNU: Version definition +# INVALID-LINK-GNU: error: '[[FILE]]': invalid section index: 255 + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: 0xFF + Info: 0x0 + Entries: [] + +## Check that we report a warning when the sh_link field of a SHT_GNU_verdef section references a non-string table section. + +# RUN: yaml2obj %s --docnum=2 -o %t2 +# RUN: llvm-readobj -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t2 +# RUN: llvm-readelf -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t2 + +# INVALID-STRING-TABLE: warning: '[[FILE]]': invalid string table linked to SHT_GNU_verdef section with index 1: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: 0x0 + Info: 0x0 + Entries: [] + +## Check that we report a warning when we can't read the content of the SHT_GNU_verdef section. + +# RUN: yaml2obj %s --docnum=3 -o %t3 +# RUN: llvm-readobj -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t3 +# RUN: llvm-readelf -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t3 + +# INVALID-DATA: warning: '[[FILE]]': cannot read content of SHT_GNU_verdef section with index 1: section [index 1] has a sh_offset (0xffffffff) + sh_size (0x0) that cannot be represented + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: .dynstr + Info: 0x0 + Entries: [] + ShOffset: 0xFFFFFFFF +DynamicSymbols: + - Name: foo + +## Check that we report a warning when a SHT_GNU_verdef section contains a version definition +## that goes past the end of the section. + +# RUN: yaml2obj %s --docnum=4 -o %t4 +# RUN: llvm-readobj -V %t4 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t4 +# RUN: llvm-readelf -V %t4 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t4 + +# DEF-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 goes past the end of the section + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: .dynstr + Info: 0x1 + Entries: + - Version: 0 + Flags: 0 + VersionNdx: 0 + Hash: 0 + Names: + - FOO + ShSize: 1 +DynamicSymbols: + - Name: foo + +## Check that we report a warning when a SHT_GNU_verdef section contains a version definition +## that refers to an auxiliary entry that goes past the end of the section. + +# RUN: yaml2obj %s --docnum=5 -o %t5 +# RUN: llvm-readobj -V %t5 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t5 +# RUN: llvm-readelf -V %t5 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t5 + +# AUX-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 refers to an auxiliary entry that goes past the end of the section + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: .dynstr + Info: 0x1 + Entries: + - Version: 0 + Flags: 0 + VersionNdx: 0 + Hash: 0 + Names: + - FOO + ShSize: 21 +DynamicSymbols: + - Name: foo + +## Check that we can dump a SHT_GNU_verdef section properly even if it contains version names strings +## that overrun the linked string table. + +# RUN: yaml2obj %s --docnum=6 -o %t6 +# RUN: llvm-readobj -V %t6 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-LLVM --implicit-check-not="warning:" -DFILE=%t6 +# RUN: llvm-readelf -V %t6 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-GNU --implicit-check-not="warning:" -DFILE=%t6 + +# PAST-STRTAB-END-LLVM: VersionDefinitions [ +# PAST-STRTAB-END-LLVM-NEXT: Definition { +# PAST-STRTAB-END-LLVM-NEXT: Version: 0 +# PAST-STRTAB-END-LLVM-NEXT: Flags [ (0x0) +# PAST-STRTAB-END-LLVM-NEXT: ] +# PAST-STRTAB-END-LLVM-NEXT: Index: 0 +# PAST-STRTAB-END-LLVM-NEXT: Hash: 0 +# PAST-STRTAB-END-LLVM-NEXT: Name: +# PAST-STRTAB-END-LLVM-NEXT: Predecessors: [] +# PAST-STRTAB-END-LLVM-NEXT: } +# PAST-STRTAB-END-LLVM-NEXT: ] + +# PAST-STRTAB-END-GNU: Version definition section '.gnu.version_d' contains 1 entries: +# PAST-STRTAB-END-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.strtab) +# PAST-STRTAB-END-GNU-NEXT: 0x0000: Rev: 0 Flags: none Index: 0 Cnt: 1 Name: + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: .strtab + Info: 0x1 + Entries: + - Version: 0 + Flags: 0 + VersionNdx: 0 + Hash: 0 + Names: + - FOO + - Name: .strtab + Type: SHT_STRTAB +DynamicSymbols: + - Name: BAR + +## Check we report a warning when a version definition is not correctly aligned in memory. + +# RUN: yaml2obj %s --docnum=7 -o %t7 +# RUN: llvm-readobj -V %t7 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t7 +# RUN: llvm-readelf -V %t7 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t7 + +# MISALIGNED-DEF: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned version definition entry at offset 0x0 + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Type: Fill + Size: 0x1 + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Link: .dynstr + Info: 0x1 + Entries: + - Version: 0 + Flags: 0 + VersionNdx: 0 + Hash: 0 + Names: + - FOO +DynamicSymbols: + - Name: foo + +## Check we report a warning when an auxiliary entry is not correctly aligned in memory. + +# RUN: yaml2obj %s --docnum=8 -o %t8 +# RUN: llvm-readobj -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t8 +# RUN: llvm-readelf -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t8 + +# MISALIGNED-AUX: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned auxiliary entry at offset 0x13 + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .gnu.version_d + Type: SHT_GNU_verdef + Flags: [ SHF_ALLOC ] + Link: .dynstr + Info: 0x1 +## The byte offset to the auxiliary entry is 0x13, i.e. it is not correctly aligned in memory. + Content: "0000000000000100000000001300000000000000" +DynamicSymbols: + - Name: foo + Binding: STB_GLOBAL Index: llvm/test/tools/llvm-readobj/elf-verneed-invalid.test =================================================================== --- llvm/test/tools/llvm-readobj/elf-verneed-invalid.test +++ llvm/test/tools/llvm-readobj/elf-verneed-invalid.test @@ -1,5 +1,4 @@ -## Here we test how llvm-readelf/llvm-readobj behave when inputs have -## invalid versioning sections. +## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_verneed sections. ## In the first case we have a SHT_GNU_versym section that refers to ## a version listed in a SHT_GNU_verneed section. That version has an Index: llvm/test/tools/llvm-readobj/elf-versioninfo.test =================================================================== --- llvm/test/tools/llvm-readobj/elf-versioninfo.test +++ llvm/test/tools/llvm-readobj/elf-versioninfo.test @@ -1,4 +1,6 @@ ## Test how llvm-readobj/llvm-readelf tools dump versioning sections. +## Check that SHT_GNU_versym dumper can see versions described in +## SHT_GNU_verdef and SHT_GNU_verneed sections. # RUN: yaml2obj %s --docnum=1 -o %t1 # RUN: llvm-readobj -V %t1 | FileCheck %s --check-prefix=LLVM @@ -293,238 +295,3 @@ # GNU-NEXT: 0x0050: Name: v2 Flags: Version: 5 # GNU-NEXT: 0x0060: Version: 1 File: verneed2.so.0 Cnt: 1 # GNU-NEXT: 0x0070: Name: v3 Flags: none Version: 6 - -## Check that we report a warning when sh_link references a non-existent section. - -# RUN: yaml2obj %s --docnum=2 -o %t2 -# RUN: llvm-readobj -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-LLVM -DFILE=%t2 -# RUN: not llvm-readelf -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-GNU -DFILE=%t2 - -# INVALID-LINK-LLVM: warning: '[[FILE]]': invalid section linked to SHT_GNU_verdef section with index 1: invalid section index: 255 - -## TODO: llvm-readelf should also report a meaningful warning instead of an error. -# INVALID-LINK-GNU: Version definition -# INVALID-LINK-GNU: error: '[[FILE]]': invalid section index: 255 - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: 0xFF - Info: 0x0 - Entries: [] - -## Check that we report a warning when the sh_link field of a SHT_GNU_verdef section references a non-string table section. - -# RUN: yaml2obj %s --docnum=3 -o %t3 -# RUN: llvm-readobj -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t3 -# RUN: llvm-readelf -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t3 - -# INVALID-STRING-TABLE: warning: '[[FILE]]': invalid string table linked to SHT_GNU_verdef section with index 1: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: 0x0 - Info: 0x0 - Entries: [] - -## Check that we report a warning when we can't read the content of the SHT_GNU_verdef section. - -# RUN: yaml2obj %s --docnum=4 -o %t4 -# RUN: llvm-readobj -V %t4 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t4 -# RUN: llvm-readelf -V %t4 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t4 - -# INVALID-DATA: warning: '[[FILE]]': cannot read content of SHT_GNU_verdef section with index 1: section [index 1] has a sh_offset (0xffffffff) + sh_size (0x0) that cannot be represented - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: .dynstr - Info: 0x0 - Entries: [] - ShOffset: 0xFFFFFFFF -DynamicSymbols: - - Name: foo - -## Check that we report a warning when a SHT_GNU_verdef section contains a version definition -## that goes past the end of the section. - -# RUN: yaml2obj %s --docnum=5 -o %t5 -# RUN: llvm-readobj -V %t5 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t5 -# RUN: llvm-readelf -V %t5 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t5 - -# DEF-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 goes past the end of the section - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: .dynstr - Info: 0x1 - Entries: - - Version: 0 - Flags: 0 - VersionNdx: 0 - Hash: 0 - Names: - - FOO - ShSize: 1 -DynamicSymbols: - - Name: foo - -## Check that we report a warning when a SHT_GNU_verdef section contains a version definition -## that refers to an auxiliary entry that goes past the end of the section. - -# RUN: yaml2obj %s --docnum=6 -o %t6 -# RUN: llvm-readobj -V %t6 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t6 -# RUN: llvm-readelf -V %t6 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t6 - -# AUX-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 refers to an auxiliary entry that goes past the end of the section - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: .dynstr - Info: 0x1 - Entries: - - Version: 0 - Flags: 0 - VersionNdx: 0 - Hash: 0 - Names: - - FOO - ShSize: 21 -DynamicSymbols: - - Name: foo - -## Check that we can dump a SHT_GNU_verdef section properly even if it contains version names strings -## that overrun the linked string table. - -# RUN: yaml2obj %s --docnum=7 -o %t7 -# RUN: llvm-readobj -V %t7 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-LLVM --implicit-check-not="warning:" -DFILE=%t7 -# RUN: llvm-readelf -V %t7 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-GNU --implicit-check-not="warning:" -DFILE=%t7 - -# PAST-STRTAB-END-LLVM: VersionDefinitions [ -# PAST-STRTAB-END-LLVM-NEXT: Definition { -# PAST-STRTAB-END-LLVM-NEXT: Version: 0 -# PAST-STRTAB-END-LLVM-NEXT: Flags [ (0x0) -# PAST-STRTAB-END-LLVM-NEXT: ] -# PAST-STRTAB-END-LLVM-NEXT: Index: 0 -# PAST-STRTAB-END-LLVM-NEXT: Hash: 0 -# PAST-STRTAB-END-LLVM-NEXT: Name: -# PAST-STRTAB-END-LLVM-NEXT: Predecessors: [] -# PAST-STRTAB-END-LLVM-NEXT: } -# PAST-STRTAB-END-LLVM-NEXT: ] - -# PAST-STRTAB-END-GNU: Version definition section '.gnu.version_d' contains 1 entries: -# PAST-STRTAB-END-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.strtab) -# PAST-STRTAB-END-GNU-NEXT: 0x0000: Rev: 0 Flags: none Index: 0 Cnt: 1 Name: - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: .strtab - Info: 0x1 - Entries: - - Version: 0 - Flags: 0 - VersionNdx: 0 - Hash: 0 - Names: - - FOO - - Name: .strtab - Type: SHT_STRTAB -DynamicSymbols: - - Name: BAR - -## Check we report a warning when a version definition is not correctly aligned in memory. - -# RUN: yaml2obj %s --docnum=8 -o %t8 -# RUN: llvm-readobj -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t8 -# RUN: llvm-readelf -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t8 - -# MISALIGNED-DEF: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned version definition entry at offset 0x0 - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Type: Fill - Size: 0x1 - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Link: .dynstr - Info: 0x1 - Entries: - - Version: 0 - Flags: 0 - VersionNdx: 0 - Hash: 0 - Names: - - FOO -DynamicSymbols: - - Name: foo - -## Check we report a warning when an auxiliary entry is not correctly aligned in memory. - -# RUN: yaml2obj %s --docnum=9 -o %t9 -# RUN: llvm-readobj -V %t9 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t9 -# RUN: llvm-readelf -V %t9 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t9 - -# MISALIGNED-AUX: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned auxiliary entry at offset 0x13 - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_DYN - Machine: EM_X86_64 -Sections: - - Name: .gnu.version_d - Type: SHT_GNU_verdef - Flags: [ SHF_ALLOC ] - Link: .dynstr - Info: 0x1 -## The byte offset to the auxiliary entry is 0x13, i.e. it is not correctly aligned in memory. - Content: "0000000000000100000000001300000000000000" -DynamicSymbols: - - Name: foo - Binding: STB_GLOBAL