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llvm-for-llvmta/test/tools/llvm-readobj/ELF/stack-sizes.test

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2022-04-25 10:02:23 +02:00
## Check that we correctly display the contents of the .stack_sizes section
## in a relocatable object file.
# RUN: yaml2obj --docnum=1 %s -o %t01
# RUN: llvm-readelf --stack-sizes %t01 \
# RUN: | FileCheck %s --check-prefix=RELOC-GNU --strict-whitespace --match-full-lines
# RUN: llvm-readobj --stack-sizes %t01 | FileCheck %s --check-prefix=RELOC-LLVM
# RELOC-GNU: Size Function
# RELOC-GNU-NEXT: 16 referenced_by_symbol_foo
# RELOC-GNU-NEXT: 32 referenced_via_section_bar
# RELOC-GNU-NEXT: 8 separate_text_section_baz
# RELOC-GNU-NOT:{{.}}
# RELOC-LLVM: StackSizes [
# RELOC-LLVM-NEXT: Entry {
# RELOC-LLVM-NEXT: Function: referenced_by_symbol_foo
# RELOC-LLVM-NEXT: Size: 0x10
# RELOC-LLVM-NEXT: }
# RELOC-LLVM-NEXT: Entry {
# RELOC-LLVM-NEXT: Function: referenced_via_section_bar
# RELOC-LLVM-NEXT: Size: 0x20
# RELOC-LLVM-NEXT: }
# RELOC-LLVM-NEXT: Entry {
# RELOC-LLVM-NEXT: Function: separate_text_section_baz
# RELOC-LLVM-NEXT: Size: 0x8
# RELOC-LLVM-NEXT: }
# RELOC-LLVM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .text.baz
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Entries:
- Size: 0x10
- Size: 0x20
Link: .text
- Name: '.stack_sizes (1)'
Type: SHT_PROGBITS
Entries:
- Address: 0x20
Size: 0x8
Link: .text.baz
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
## A symbol relative reference.
- Offset: 0
Symbol: referenced_by_symbol_foo
Type: R_X86_64_64
## A section relative reference.
- Offset: 9
Addend: 16
Symbol: .text
Type: R_X86_64_64
- Name: '.rela.stack_sizes (1)'
Type: SHT_RELA
Info: '.stack_sizes (1)'
Relocations:
- Offset: 0
Symbol: separate_text_section_baz
Type: R_X86_64_64
- Name: .symtab
Type: SHT_SYMTAB
ShOffset: [[SYMTABOFFSET=<none>]]
Symbols:
- Name: separate_text_section_baz
Section: [[SEC1=.text.baz]]
Type: STT_FUNC
Index: [[SEC1INDEX=<none>]]
- Name: .text
Section: .text
Type: STT_SECTION
- Name: referenced_by_symbol_foo
Section: .text
Type: STT_FUNC
Binding: STB_GLOBAL
- Name: referenced_via_section_bar
Section: .text
Value: 0x10
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we report a warning when we are unable to read
## the symbol table when dumping stack sizes.
# RUN: yaml2obj --docnum=1 %s -DSYMTABOFFSET=0xffffeeee -o %t01.broken.symtab
# RUN: llvm-readelf --stack-sizes %t01.broken.symtab 2>&1 | \
# RUN: FileCheck %s -DFILE=%t01.broken.symtab --check-prefix=SYMTAB-GNU --implicit-check-not=warning:
# RUN: llvm-readobj --stack-sizes %t01.broken.symtab 2>&1 | \
# RUN: FileCheck %s -DFILE=%t01.broken.symtab --check-prefix=SYMTAB-LLVM --implicit-check-not=warning:
# SYMTAB-GNU: Stack Sizes:
# SYMTAB-GNU-NEXT: Size Function
# SYMTAB-GNU-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 0 in SHT_RELA section with index 5: unable to read an entry with index 3 from SHT_SYMTAB section with index 7: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-GNU-NEXT: warning: '[[FILE]]': unable to read the symbol table: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-GNU-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 3
# SYMTAB-GNU-NEXT: 16 ?
# SYMTAB-GNU-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 1 in SHT_RELA section with index 5: unable to read an entry with index 2 from SHT_SYMTAB section with index 7: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-GNU-NEXT: 32 ?
# SYMTAB-GNU-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 0 in SHT_RELA section with index 6: unable to read an entry with index 1 from SHT_SYMTAB section with index 7: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-GNU-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 4
# SYMTAB-GNU-NEXT: 8 ?
# SYMTAB-LLVM: StackSizes [
# SYMTAB-LLVM-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 0 in SHT_RELA section with index 5: unable to read an entry with index 3 from SHT_SYMTAB section with index 7: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-LLVM-NEXT: warning: '[[FILE]]': unable to read the symbol table: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-LLVM-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 3
# SYMTAB-LLVM-NEXT: Entry {
# SYMTAB-LLVM-NEXT: Function: ?
# SYMTAB-LLVM-NEXT: Size: 0x10
# SYMTAB-LLVM-NEXT: }
# SYMTAB-LLVM-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 1 in SHT_RELA section with index 5: unable to read an entry with index 2 from SHT_SYMTAB section with index 7: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-LLVM-NEXT: Entry {
# SYMTAB-LLVM-NEXT: Function: ?
# SYMTAB-LLVM-NEXT: Size: 0x20
# SYMTAB-LLVM-NEXT: }
# SYMTAB-LLVM-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 0 in SHT_RELA section with index 6: unable to read an entry with index 1 from SHT_SYMTAB section with index 7: section [index 7] has a sh_offset (0xffffeeee) + sh_size (0x78) that is greater than the file size (0x450)
# SYMTAB-LLVM-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 4
# SYMTAB-LLVM-NEXT: Entry {
# SYMTAB-LLVM-NEXT: Function: ?
# SYMTAB-LLVM-NEXT: Size: 0x8
# SYMTAB-LLVM-NEXT: }
# SYMTAB-LLVM-NEXT: ]
## In this case we have a function symbol with an invalid section index.
## Document what we dump.
# RUN: yaml2obj --docnum=1 %s -DSEC1="<none>" -DSEC1INDEX=0xFF -o %t01.broken.sym
# RUN: llvm-readelf --stack-sizes %t01.broken.sym 2>&1 | \
# RUN: FileCheck %s -DFILE=%t01.broken.sym --check-prefix=SYM-GNU --implicit-check-not=warning:
# RUN: llvm-readobj --stack-sizes %t01.broken.sym 2>&1 | \
# RUN: FileCheck %s -DFILE=%t01.broken.sym --check-prefix=SYM-LLVM --implicit-check-not=warning:
# SYM-GNU: Stack Sizes:
# SYM-GNU-NEXT: Size Function
# SYM-GNU-NEXT: warning: '[[FILE]]': unable to get address of symbol 'separate_text_section_baz': invalid section index: 255
# SYM-GNU-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 3
# SYM-GNU-NEXT: 16 ?
# SYM-GNU-NEXT: 32 ?
# SYM-GNU-NEXT: warning: '[[FILE]]': cannot identify the section for relocation symbol 'separate_text_section_baz': invalid section index: 255
# SYM-GNU-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 4
# SYM-GNU-NEXT: 8 ?
# SYM-LLVM: StackSizes [
# SYM-LLVM-NEXT: warning: '[[FILE]]': unable to get address of symbol 'separate_text_section_baz': invalid section index: 255
# SYM-LLVM-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 3
# SYM-LLVM-NEXT: Entry {
# SYM-LLVM-NEXT: Function: ?
# SYM-LLVM-NEXT: Size: 0x10
# SYM-LLVM-NEXT: }
# SYM-LLVM-NEXT: Entry {
# SYM-LLVM-NEXT: Function: ?
# SYM-LLVM-NEXT: Size: 0x20
# SYM-LLVM-NEXT: }
# SYM-LLVM-NEXT: warning: '[[FILE]]': cannot identify the section for relocation symbol 'separate_text_section_baz': invalid section index: 255
# SYM-LLVM-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 4
# SYM-LLVM-NEXT: Entry {
# SYM-LLVM-NEXT: Function: ?
# SYM-LLVM-NEXT: Size: 0x8
# SYM-LLVM-NEXT: }
# SYM-LLVM-NEXT: ]
## Check that we correctly report the stack sizes in an executable (non-relocatable)
## object file. This also shows that the sh_link field is ignored in this situation
## without warning.
# RUN: yaml2obj --docnum=2 %s -o %t02
# RUN: llvm-readelf --stack-sizes %t02 2>&1 \
# RUN: | FileCheck %s --check-prefix=EXEC-GNU --strict-whitespace \
# RUN: --match-full-lines --implicit-check-not=warning:
# RUN: llvm-readobj --stack-sizes %t02 2>&1 \
# RUN: | FileCheck %s --check-prefix=EXEC-LLVM --implicit-check-not=warning:
# EXEC-GNU: Size Function
# EXEC-GNU-NEXT: 16 other
# EXEC-GNU-NEXT: 32 other_end
# EXEC-GNU-NEXT: 48 bar
# EXEC-GNU-NOT:{{.}}
# EXEC-LLVM: StackSizes [
# EXEC-LLVM-NEXT: Entry {
# EXEC-LLVM-NEXT: Function: other
# EXEC-LLVM-NEXT: Size: 0x10
# EXEC-LLVM-NEXT: }
# EXEC-LLVM-NEXT: Entry {
# EXEC-LLVM-NEXT: Function: other_end
# EXEC-LLVM-NEXT: Size: 0x20
# EXEC-LLVM-NEXT: }
# EXEC-LLVM-NEXT: Entry {
# EXEC-LLVM-NEXT: Function: bar
# EXEC-LLVM-NEXT: Size: 0x30
# EXEC-LLVM-NEXT: }
# EXEC-LLVM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .text2
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Entries:
- Address: 0x0
Size: 0x10
- Address: 0x10
Size: 0x20
- Address: 0x20
Size: 0x30
Link: .text2
Symbols:
## Undefined symbols are ignored.
- Name: undefined
Type: STT_FUNC
Binding: STB_GLOBAL
## sh_link of .stack_sizes is ignored for non-reloctable objects.
- Name: other
Section: .text
Value: 0
Type: STT_FUNC
Binding: STB_GLOBAL
## If two symbols have the same value, the first is picked, regardless of
## the sh_link value of the .stack_sizes section.
- Name: other_end
Section: .text
Value: 0x10
Type: STT_FUNC
Binding: STB_GLOBAL
- Name: foo
Section: .text2
Value: 0x10
Type: STT_FUNC
Binding: STB_GLOBAL
- Name: bar
Section: .text2
Value: 0x20
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we report a warning when we find relocations whose offsets point outside
## of the .stack_sizes section.
# RUN: yaml2obj --docnum=3 %s -o %t03
# RUN: llvm-readelf --stack-sizes %t03 2>&1 | FileCheck %s --check-prefix=SHORT-GNU -DFILE=%t03
# RUN: llvm-readobj --stack-sizes %t03 2>&1 | FileCheck %s --check-prefix=SHORT-LLVM -DFILE=%t03
# SHORT-GNU: Stack Sizes:
# SHORT-GNU-NEXT: Size Function
# SHORT-GNU-NEXT: 8 foo
# SHORT-GNU-NEXT: warning: '[[FILE]]': found invalid relocation offset (0x1) into SHT_PROGBITS section with index 2 while trying to extract a stack size entry
# SHORT-GNU-NEXT: 8 foo
# SHORT-LLVM: StackSizes [
# SHORT-LLVM-NEXT: Entry {
# SHORT-LLVM-NEXT: Function: foo
# SHORT-LLVM-NEXT: Size: 0x8
# SHORT-LLVM-NEXT: }
# SHORT-LLVM-NEXT: warning: '[[FILE]]': found invalid relocation offset (0x1) into SHT_PROGBITS section with index 2 while trying to extract a stack size entry
# SHORT-LLVM-NEXT: Entry {
# SHORT-LLVM-NEXT: Function: foo
# SHORT-LLVM-NEXT: Size: 0x8
# SHORT-LLVM-NEXT: }
# SHORT-LLVM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Link: .text
Entries:
- Size: 0x8
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
- Offset: 0x0
Symbol: foo
Type: R_X86_64_64
- Offset: 0x1
Symbol: foo
Type: R_X86_64_64
- Offset: 0x1
Symbol: foo
Type: R_X86_64_64
- Offset: 0x0
Symbol: foo
Type: R_X86_64_64
Symbols:
- Name: foo
Section: .text
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we warn about a function symbol that is not in the section
## that is referenced by the stack sizes section's sh_link, for relocatable
## output.
# RUN: yaml2obj --docnum=4 %s -o %t04
# RUN: llvm-readelf --stack-sizes %t04 2> %t04-gnu.err | FileCheck %s --check-prefix=WRONGSECTION-GNU
# RUN: FileCheck %s < %t04-gnu.err --check-prefix=WRONGSECTION-ERR -DFILE=%t04
# RUN: llvm-readobj --stack-sizes %t04 2> %t04-llvm.err | FileCheck %s --check-prefix=WRONGSECTION-LLVM
# RUN: FileCheck %s < %t04-llvm.err --check-prefix=WRONGSECTION-ERR -DFILE=%t04
# RUN: llvm-readelf --stack-sizes --demangle %t04 2>&1 | FileCheck %s --check-prefix=WRONGSECTION-DEMANGLE-ERR -DFILE=%t04
# RUN: llvm-readobj --stack-sizes --demangle %t04 2>&1 | FileCheck %s --check-prefix=WRONGSECTION-DEMANGLE-ERR -DFILE=%t04
# WRONGSECTION-GNU: Size Function
# WRONGSECTION-GNU-NEXT: 8 _Z3foof
# WRONGSECTION-LLVM: StackSizes [
# WRONGSECTION-LLVM-NEXT: Entry {
# WRONGSECTION-LLVM-NEXT: Function: _Z3foof
# WRONGSECTION-LLVM-NEXT: Size: 0x8
# WRONGSECTION-LLVM-NEXT: }
# WRONGSECTION-LLVM-NEXT: ]
# WRONGSECTION-ERR: warning: '[[FILE]]': relocation symbol '_Z3foof' is not in the expected section
# WRONGSECTION-DEMANGLE-ERR: warning: '[[FILE]]': relocation symbol 'foo(float)' is not in the expected section
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Size: 8
- Name: .text2
Type: SHT_PROGBITS
Size: 8
Flags: [SHF_ALLOC]
- Name: .stack_sizes
Type: SHT_PROGBITS
Entries:
- Size: 0x8
Link: .text2
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
- Offset: 0
Symbol: _Z3foof
Type: R_X86_64_64
Symbols:
- Name: _Z3foof
Section: .text
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we report a warning when a stack sizes section ends with an incomplete stack size entry.
# RUN: yaml2obj --docnum=5 %s -o %t05
# RUN: llvm-readelf --stack-sizes %t05 2>&1 | \
# RUN: FileCheck %s --check-prefix=SUDDENEND-GNU -DFILE=%t05
# RUN: llvm-readobj --stack-sizes %t05 2>&1 | \
# RUN: FileCheck %s --check-prefix=SUDDENEND-LLVM -DFILE=%t05
# SUDDENEND-GNU: Stack Sizes:
# SUDDENEND-GNU-NEXT: Size Function
# SUDDENEND-GNU-NEXT: 8 foo
# SUDDENEND-GNU-NEXT: warning: '[[FILE]]': SHT_PROGBITS section with index 2 ended while trying to extract a stack size entry
# SUDDENEND-GNU-NEXT: 8 foo
# SUDDENEND-GNU-NEXT: warning: '[[FILE]]': SHT_PROGBITS section with index 3 ended while trying to extract a stack size entry
# SUDDENEND-LLVM: StackSizes [
# SUDDENEND-LLVM-NEXT: Entry {
# SUDDENEND-LLVM-NEXT: Function: foo
# SUDDENEND-LLVM-NEXT: Size: 0x8
# SUDDENEND-LLVM-NEXT: }
# SUDDENEND-LLVM-NEXT: warning: '[[FILE]]': SHT_PROGBITS section with index 2 ended while trying to extract a stack size entry
# SUDDENEND-LLVM-NEXT: Entry {
# SUDDENEND-LLVM-NEXT: Function: foo
# SUDDENEND-LLVM-NEXT: Size: 0x8
# SUDDENEND-LLVM-NEXT: }
# SUDDENEND-LLVM-NEXT: warning: '[[FILE]]': SHT_PROGBITS section with index 3 ended while trying to extract a stack size entry
# SUDDENEND-LLVM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
- Name: .stack_sizes
Type: SHT_PROGBITS
Link: .text
Entries:
- Size: 0x8
- Size: 0x10
## 0x11 == the normal size minus 1.
ShSize: 0x11
- Name: .stack_sizes (1)
Type: SHT_PROGBITS
Link: .text
Entries:
- Size: 0x8
- Size: 0x10
ShSize: 0x11
Symbols:
- Name: foo
Section: .text
Type: STT_FUNC
## Check that we report an invalid stack size, which is represented by a ULEB that
## ends in a byte with the high bit set.
# RUN: yaml2obj --docnum=6 %s -o %t06
# RUN: llvm-readelf --stack-sizes %t06 2>&1 | \
# RUN: FileCheck %s --check-prefix=BADSIZE -DFILE=%t06 --implicit-check-not=warning:
# RUN: llvm-readobj --stack-sizes %t06 2>&1 | \
# RUN: FileCheck %s --check-prefix=BADSIZE -DFILE=%t06 --implicit-check-not=warning:
# BADSIZE: warning: '[[FILE]]': could not extract a valid stack size from SHT_PROGBITS section with index 2: unable to decode LEB128 at offset 0x00000008: malformed uleb128, extends past end
# BADSIZE: warning: '[[FILE]]': could not extract a valid stack size from SHT_PROGBITS section with index 3: unable to decode LEB128 at offset 0x00000008: malformed uleb128, extends past end
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Content: "100000000000000080"
Link: .text
- Name: .stack_sizes (1)
Type: SHT_PROGBITS
Content: "100000000000000080"
Link: .text
Symbols:
- Name: foo
Section: .text
Value: 0x10
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we report a warning when a relocation symbol does not belong to a
## valid section or when it has an invalid index. We expect a stack size entry
## with an unknown symbol in the output.
# RUN: yaml2obj --docnum=7 %s -o %t07
# RUN: llvm-readelf --stack-sizes %t07 2>&1 | \
# RUN: FileCheck %s -DFILE=%t07 --check-prefix=BADSECTION-OUT-GNU --implicit-check-not=warning:
# RUN: llvm-readobj --stack-sizes %t07 2>&1 | \
# RUN: FileCheck %s -DFILE=%t07 --check-prefix=BADSECTION-OUT-LLVM --implicit-check-not=warning:
# BADSECTION-OUT-GNU: Stack Sizes:
# BADSECTION-OUT-GNU-NEXT: Size Function
# BADSECTION-OUT-GNU-NEXT: warning: '[[FILE]]': cannot identify the section for relocation symbol '_Z3foof': invalid section index: 10
# BADSECTION-OUT-GNU-NEXT: warning: '[[FILE]]': unable to get address of symbol '_Z3foof': invalid section index: 10
# BADSECTION-OUT-GNU-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 2
# BADSECTION-OUT-GNU-NEXT: 8 ?
# BADSECTION-OUT-GNU-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 1 in SHT_RELA section with index 3: unable to read an entry with index 255 from SHT_SYMTAB section with index 4: can't read an entry at 0x17e8: it goes past the end of the section (0x30)
# BADSECTION-OUT-GNU-NEXT: 22 ?
# BADSECTION-OUT-GNU-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 2 in SHT_RELA section with index 3: unable to read an entry with index 255 from SHT_SYMTAB section with index 4: can't read an entry at 0x17e8: it goes past the end of the section (0x30)
# BADSECTION-OUT-GNU-NEXT: 36 ?
# BADSECTION-OUT-LLVM: StackSizes [
# BADSECTION-OUT-LLVM-NEXT: warning: '[[FILE]]': cannot identify the section for relocation symbol '_Z3foof': invalid section index: 10
# BADSECTION-OUT-LLVM-NEXT: warning: '[[FILE]]': unable to get address of symbol '_Z3foof': invalid section index: 10
# BADSECTION-OUT-LLVM-NEXT: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 2
# BADSECTION-OUT-LLVM-NEXT: Entry {
# BADSECTION-OUT-LLVM-NEXT: Function: ?
# BADSECTION-OUT-LLVM-NEXT: Size: 0x8
# BADSECTION-OUT-LLVM-NEXT: }
# BADSECTION-OUT-LLVM-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 1 in SHT_RELA section with index 3: unable to read an entry with index 255 from SHT_SYMTAB section with index 4: can't read an entry at 0x17e8: it goes past the end of the section (0x30)
# BADSECTION-OUT-LLVM-NEXT: Entry {
# BADSECTION-OUT-LLVM-NEXT: Function: ?
# BADSECTION-OUT-LLVM-NEXT: Size: 0x16
# BADSECTION-OUT-LLVM-NEXT: }
# BADSECTION-OUT-LLVM-NEXT: warning: '[[FILE]]': unable to get the target of relocation with index 2 in SHT_RELA section with index 3: unable to read an entry with index 255 from SHT_SYMTAB section with index 4: can't read an entry at 0x17e8: it goes past the end of the section (0x30)
# BADSECTION-OUT-LLVM-NEXT: Entry {
# BADSECTION-OUT-LLVM-NEXT: Function: ?
# BADSECTION-OUT-LLVM-NEXT: Size: 0x24
# BADSECTION-OUT-LLVM-NEXT: }
# BADSECTION-OUT-LLVM-NEXT: ]
# RUN: llvm-readelf --stack-sizes --demangle %t07 2>&1 | FileCheck %s --check-prefix=BADSECTION-DEMANGLE-ERR -DFILE=%t07
# RUN: llvm-readobj --stack-sizes --demangle %t07 2>&1 | FileCheck %s --check-prefix=BADSECTION-DEMANGLE-ERR -DFILE=%t07
# BADSECTION-DEMANGLE-ERR: warning: '[[FILE]]': cannot identify the section for relocation symbol 'foo(float)'
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Link: .text
Entries:
- Size: 0x8
- Size: 0x16
- Size: 0x24
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
- Offset: 0
Symbol: _Z3foof
Type: R_X86_64_64
- Offset: 9
## An invalid symbol index.
Symbol: 0xff
Type: R_X86_64_64
## One more invalid symbol index with the same symbol value (0xff).
- Offset: 0x12
Symbol: 0xff
Type: R_X86_64_64
Symbols:
- Name: _Z3foof
## An invalid section index.
Index: 10
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we report a warning when a stack sizes section does not come with
## a corresponding relocation section.
# RUN: yaml2obj --docnum=8 %s -o %t08
# RUN: llvm-readelf --stack-sizes %t08 2> %t08-gnu.err | FileCheck %s --check-prefix=NORELOCSECTION-OUT-GNU
# RUN: FileCheck %s < %t08-gnu.err --check-prefix=NORELOCSECTION-ERR -DFILE=%t08
# RUN: llvm-readobj --stack-sizes %t08 2> %t08-llvm.err | FileCheck %s --check-prefix=NORELOCSECTION-OUT-LLVM
# RUN: FileCheck %s < %t08-llvm.err --check-prefix=NORELOCSECTION-ERR -DFILE=%t08
# NORELOCSECTION-OUT-GNU: Size Function
# NORELOCSECTION-OUT-GNU-NOT: {{.}}
# NORELOCSECTION-OUT-LLVM: StackSizes [
# NORELOCSECTION-OUT-LLVM-NEXT: ]
# NORELOCSECTION-ERR: warning: '[[FILE]]': .stack_sizes (SHT_PROGBITS section with index 2) does not have a corresponding relocation section
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .text
Type: SHT_PROGBITS
Size: 8
- Name: .stack_sizes
Type: SHT_PROGBITS
Link: .text
Entries:
- Size: 0x1
## Check that we handle multiple object files, separately and when they
## are in an archive. This also checks whether we have blank lines between the
## tables.
# RUN: llvm-ar rc %t1.a %t01 %t02
# RUN: llvm-readelf --stack-sizes %t01 %t02 \
# RUN: | FileCheck %s --check-prefixes=MULTIPLE-GNU,OBJECT -DFILE1=%t01 -DFILE2=%t02
# RUN: llvm-readelf --stack-sizes %t1.a \
# RUN: | FileCheck %s --check-prefixes=MULTIPLE-GNU,ARCHIVE --strict-whitespace\
# RUN: --match-full-lines -DFILE=%t1.a
# RUN: llvm-readobj --stack-sizes %t01 %t02 \
# RUN: | FileCheck %s --check-prefixes=MULTIPLE-LLVM,OBJECT -DFILE1=%t01 -DFILE2=%t02
# RUN: llvm-readobj --stack-sizes %t1.a \
# RUN: | FileCheck %s --check-prefixes=MULTIPLE-LLVM,ARCHIVE -DFILE=%t1.a
# OBJECT:File: [[FILE1]]
# ARCHIVE:File: [[FILE]]({{.*01}})
# MULTIPLE-GNU:Stack Sizes:
# MULTIPLE-GNU-NEXT: Size Function
# MULTIPLE-GNU-NEXT: 16 referenced_by_symbol_foo
# MULTIPLE-GNU-NEXT: 32 referenced_via_section_bar
# MULTIPLE-GNU-NEXT: 8 separate_text_section_baz
# MULTIPLE-GNU-EMPTY:
# MULTIPLE-LLVM: StackSizes [
# MULTIPLE-LLVM-NEXT: Entry {
# MULTIPLE-LLVM-NEXT: Function: referenced_by_symbol_foo
# MULTIPLE-LLVM-NEXT: Size: 0x10
# MULTIPLE-LLVM-NEXT: }
# MULTIPLE-LLVM-NEXT: Entry {
# MULTIPLE-LLVM-NEXT: Function: referenced_via_section_bar
# MULTIPLE-LLVM-NEXT: Size: 0x20
# MULTIPLE-LLVM-NEXT: }
# MULTIPLE-LLVM-NEXT: Entry {
# MULTIPLE-LLVM-NEXT: Function: separate_text_section_baz
# MULTIPLE-LLVM-NEXT: Size: 0x8
# MULTIPLE-LLVM-NEXT: }
# MULTIPLE-LLVM-NEXT: ]
# OBJECT:File: [[FILE2]]
# ARCHIVE:File: [[FILE]]({{.*02}})
# MULTIPLE-GNU-EMPTY:
# MULTIPLE-GNU-NEXT:Stack Sizes:
# MULTIPLE-GNU-NEXT: Size Function
# MULTIPLE-GNU-NEXT: 16 other
# MULTIPLE-GNU-NEXT: 32 other_end
# MULTIPLE-GNU-NEXT: 48 bar
# MULTIPLE-LLVM: StackSizes [
# MULTIPLE-LLVM-NEXT: Entry {
# MULTIPLE-LLVM-NEXT: Function: other
# MULTIPLE-LLVM-NEXT: Size: 0x10
# MULTIPLE-LLVM-NEXT: }
# MULTIPLE-LLVM-NEXT: Entry {
# MULTIPLE-LLVM-NEXT: Function: other_end
# MULTIPLE-LLVM-NEXT: Size: 0x20
# MULTIPLE-LLVM-NEXT: }
# MULTIPLE-LLVM-NEXT: Entry {
# MULTIPLE-LLVM-NEXT: Function: bar
# MULTIPLE-LLVM-NEXT: Size: 0x30
# MULTIPLE-LLVM-NEXT: }
# MULTIPLE-LLVM-NEXT: ]
## Check that we do not consider symbols that are not function symbols, even though
## a relocation references them.
# RUN: yaml2obj --docnum=9 %s -o %t14
# RUN: llvm-readelf --stack-sizes %t14 2> %t14-gnu.err | FileCheck %s --check-prefix=NONFUNCTIONSYM-GNU
# RUN: FileCheck %s < %t14-gnu.err --check-prefix=NONFUNCTIONSYM-ERR -DFILE=%t14
# RUN: llvm-readobj --stack-sizes %t14 2> %t14-llvm.err | FileCheck %s --check-prefix=NONFUNCTIONSYM-LLVM
# RUN: FileCheck %s < %t14-llvm.err --check-prefix=NONFUNCTIONSYM-ERR -DFILE=%t14
# NONFUNCTIONSYM-GNU: Stack Sizes:
# NONFUNCTIONSYM-GNU: 0 ?
# NONFUNCTIONSYM-LLVM: StackSizes [
# NONFUNCTIONSYM-LLVM-NEXT: Entry {
# NONFUNCTIONSYM-LLVM-NEXT: Function: ?
# NONFUNCTIONSYM-LLVM-NEXT: Size: 0x0
# NONFUNCTIONSYM-LLVM-NEXT: }
# NONFUNCTIONSYM-LLVM-NEXT: ]
# NONFUNCTIONSYM-ERR: warning: '[[FILE]]': could not identify function symbol for stack size entry in SHT_PROGBITS section with index 2
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Entries:
- Size: 0
Link: .text
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
- Offset: 0
Symbol: foo
Type: R_X86_64_64
Symbols:
- Name: foo
Section: .text
Type: STT_OBJECT
Binding: STB_GLOBAL
## Check that we report a warning when we find an unsupported relocation
## in the section that contains the stack size entries' relocations.
# RUN: yaml2obj --docnum=10 %s -o %t15
# RUN: llvm-readelf --stack-sizes %t15 2>&1 | FileCheck %s --check-prefix=UNSUPPRELOC-GNU -DFILE=%t15
# RUN: llvm-readobj --stack-sizes %t15 2>&1 | FileCheck %s --check-prefix=UNSUPPRELOC-LLVM -DFILE=%t15
# UNSUPPRELOC-GNU: Stack Sizes:
# UNSUPPRELOC-GNU-NEXT: Size Function
# UNSUPPRELOC-GNU-NEXT: warning: '[[FILE]]': SHT_RELA section with index 3 contains an unsupported relocation with index 0: R_X86_64_RELATIVE
# UNSUPPRELOC-GNU-NEXT: 0 foo
# UNSUPPRELOC-GNU-NEXT: warning: '[[FILE]]': SHT_RELA section with index 3 contains an unsupported relocation with index 2: R_X86_64_RELATIVE
# UNSUPPRELOC-LLVM: StackSizes [
# UNSUPPRELOC-LLVM-NEXT: warning: '[[FILE]]': SHT_RELA section with index 3 contains an unsupported relocation with index 0: R_X86_64_RELATIVE
# UNSUPPRELOC-LLVM-NEXT: Entry {
# UNSUPPRELOC-LLVM-NEXT: Function: foo
# UNSUPPRELOC-LLVM-NEXT: Size: 0x0
# UNSUPPRELOC-LLVM-NEXT: }
# UNSUPPRELOC-LLVM-NEXT: warning: '[[FILE]]': SHT_RELA section with index 3 contains an unsupported relocation with index 2: R_X86_64_RELATIVE
# UNSUPPRELOC-LLVM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Size: 8
- Name: .stack_sizes
Type: SHT_PROGBITS
Link: .text
Entries:
- Size: 0
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
- Offset: 0
Symbol: foo
Type: R_X86_64_RELATIVE
- Offset: 0
Symbol: foo
Type: R_X86_64_64
- Offset: 0
Symbol: foo
Type: R_X86_64_RELATIVE
Symbols:
- Name: foo
Section: .text
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that warning messages in archives do not impact other members. In the following
## test, the first archive member generates a warning and we make sure all the information
## is still dumped.
# RUN: llvm-ar rc %t2.a %t04 %t01
# RUN: llvm-readelf --stack-sizes %t2.a 2>&1 | FileCheck %s --check-prefix=ARCHIVEWARN-GNU \
# RUN: -DFILE=%t2.a --strict-whitespace --match-full-lines
# RUN: llvm-readobj --stack-sizes %t2.a 2>&1 | FileCheck %s --check-prefix=ARCHIVEWARN-LLVM -DFILE=%t2.a
# ARCHIVEWARN-GNU:File: [[FILE]]({{.*04}})
# ARCHIVEWARN-GNU:Stack Sizes:
# ARCHIVEWARN-GNU-NEXT: Size Function
# ARCHIVEWARN-GNU:{{.*}}: warning: '{{.*04}}': relocation symbol '_Z3foof' is not in the expected section
# ARCHIVEWARN-GNU: 8 _Z3foof
# ARCHIVEWARN-GNU:File: [[FILE]]({{.*01}})
# ARCHIVEWARN-GNU:Stack Sizes:
# ARCHIVEWARN-GNU-NEXT: Size Function
# ARCHIVEWARN-GNU-NEXT: 16 referenced_by_symbol_foo
# ARCHIVEWARN-GNU-NEXT: 32 referenced_via_section_bar
# ARCHIVEWARN-GNU-NEXT: 8 separate_text_section_baz
# ARCHIVEWARN-GNU-NOT:{{.}}
# ARCHIVEWARN-LLVM: File: [[FILE]]({{.*04}})
# ARCHIVEWARN-LLVM: StackSizes [
# ARCHIVEWARN-LLVM: warning: '{{.*04}}': relocation symbol '_Z3foof' is not in the expected section
# ARCHIVEWARN-LLVM-NEXT: Entry {
# ARCHIVEWARN-LLVM-NEXT: Function: _Z3foof
# ARCHIVEWARN-LLVM-NEXT: Size: 0x8
# ARCHIVEWARN-LLVM-NEXT: }
# ARCHIVEWARN-LLVM-NEXT: ]
# ARCHIVEWARN-LLVM: File: [[FILE]]({{.*01}})
# ARCHIVEWARN-LLVM: StackSizes [
# ARCHIVEWARN-LLVM-NEXT: Entry {
# ARCHIVEWARN-LLVM-NEXT: Function: referenced_by_symbol_foo
# ARCHIVEWARN-LLVM-NEXT: Size: 0x10
# ARCHIVEWARN-LLVM-NEXT: }
# ARCHIVEWARN-LLVM-NEXT: Entry {
# ARCHIVEWARN-LLVM-NEXT: Function: referenced_via_section_bar
# ARCHIVEWARN-LLVM-NEXT: Size: 0x20
# ARCHIVEWARN-LLVM-NEXT: }
# ARCHIVEWARN-LLVM-NEXT: Entry {
# ARCHIVEWARN-LLVM-NEXT: Function: separate_text_section_baz
# ARCHIVEWARN-LLVM-NEXT: Size: 0x8
# ARCHIVEWARN-LLVM-NEXT: }
# ARCHIVEWARN-LLVM-NEXT: ]
## Check that we demangle function names when requested.
# RUN: yaml2obj --docnum=11 %s -o %t16
# RUN: llvm-readelf --stack-sizes --demangle %t16 | FileCheck %s --check-prefix=DEMANGLE-GNU
# RUN: llvm-readobj --stack-sizes --demangle %t16 | FileCheck %s --check-prefix=DEMANGLE-LLVM
# DEMANGLE-GNU: 16 foo(float)
# DEMANGLE-LLVM: Function: foo(float)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [SHF_ALLOC]
Size: 16
- Name: .stack_sizes
Type: SHT_PROGBITS
Entries:
- Address: 0x10
Size: 0x10
Link: .text
Symbols:
- Name: _Z3foof
Section: .text
Value: 0x10
Type: STT_FUNC
Binding: STB_GLOBAL
## Check that we report a warning when we are unable to resolve a relocation for a given ELF architecture.
## Here we have a 64-bit relocation used in a 32-bit object.
# RUN: yaml2obj --docnum=12 %s -o %t17
# RUN: llvm-readelf --stack-sizes %t17 2>&1 | FileCheck %s -DFILE=%t17 --check-prefix=UNSUPPRELOC2
# RUN: llvm-readobj --stack-sizes %t17 2>&1 | FileCheck %s -DFILE=%t17 --check-prefix=UNSUPPRELOC2
# UNSUPPRELOC2: warning: '[[FILE]]': SHT_RELA section with index 2 contains an unsupported relocation with index 0: R_X86_64_64
--- !ELF
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2MSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .stack_sizes
Type: SHT_PROGBITS
Content: "00"
- Name: .rela.stack_sizes
Type: SHT_RELA
Info: .stack_sizes
Relocations:
- Offset: 0
Type: R_X86_64_64
## Check we report a warning when dumping stack sizes if the relocated section
## identified by the sh_info field is invalid. Here the sh_info value is larger than
## the number of sections.
# RUN: yaml2obj --docnum=13 %s -o %t18
# RUN: llvm-readelf --stack-sizes %t18 2>&1 | \
# RUN: FileCheck %s --implicit-check-not="warning:" -DFILE=%t18 --check-prefix=INVALID-TARGET
# RUN: llvm-readobj --stack-sizes %t18 2>&1 | \
# RUN: FileCheck %s --implicit-check-not="warning:" -DFILE=%t18 --check-prefix=INVALID-TARGET
# INVALID-TARGET: warning: '[[FILE]]': SHT_RELA section with index 1: failed to get a relocated section: invalid section index: 255
# INVALID-TARGET: warning: '[[FILE]]': SHT_RELA section with index 2: failed to get a relocated section: invalid section index: 255
--- !ELF
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2MSB
Type: ET_REL
Sections:
- Name: .rela.stack_sizes
Type: SHT_RELA
Link: 0
Info: 0xFF
Relocations: []
- Name: .rela.stack_sizes (1)
Type: SHT_RELA
Link: 0
Info: 0xFF
Relocations: []