mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
temporary
llvm-svn: 315344
This commit is contained in:
Jake Ehrlich
parent
3c53c6ea7e
commit
875bd340c8
3
test/tools/llvm-objcopy/dynsym-error-remove-strtab.test
Normal file
3
test/tools/llvm-objcopy/dynsym-error-remove-strtab.test
Normal file
@ -0,0 +1,3 @@
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# RUN: not llvm-objcopy -R .dynstr %p/Inputs/dynsym.so %t 2>&1 >/dev/null | FileCheck %s
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# CHECK: String table .dynstr cannot be removed because it is referenced by the section .dynsym
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32
test/tools/llvm-objcopy/reloc-error-remove-symtab.test
Normal file
32
test/tools/llvm-objcopy/reloc-error-remove-symtab.test
Normal file
@ -0,0 +1,32 @@
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# RUN: yaml2obj %s > %t
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# RUN: not llvm-objcopy -R .symtab %t %t2 2>&1 >/dev/null | FileCheck %s
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!ELF
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FileHeader:
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||||
Class: ELFCLASS64
|
||||
Data: ELFDATA2LSB
|
||||
Type: ET_REL
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||||
Machine: EM_X86_64
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||||
Sections:
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- Name: .text
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||||
Type: SHT_PROGBITS
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||||
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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||||
Address: 0x1000
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||||
AddressAlign: 0x0000000000000010
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Content: "0000000000000000"
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- Name: .rel.text
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Type: SHT_REL
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Link: .symtab
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Info: .text
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Relocations:
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- Offset: 0x1000
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Symbol: foo
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Type: R_X86_64_PC32
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Symbols:
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Global:
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- Name: foo
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Type: STT_FUNC
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Size: 4
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# CHECK: Symbol table .symtab cannot be removed because it is referenced by the relocation section .rel.text.
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54
test/tools/llvm-objcopy/remove-section-with-symbol.test
Normal file
54
test/tools/llvm-objcopy/remove-section-with-symbol.test
Normal file
@ -0,0 +1,54 @@
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# RUN: yaml2obj %s > %t
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# RUN: llvm-objcopy -R .test %t %t2
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# RUN: llvm-readobj -file-headers -symbols %t2 | FileCheck %s
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||||
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||||
!ELF
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FileHeader:
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||||
Class: ELFCLASS64
|
||||
Data: ELFDATA2LSB
|
||||
Type: ET_REL
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||||
Machine: EM_X86_64
|
||||
Sections:
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- Name: .test
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||||
Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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- Name: .test2
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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Symbols:
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Global:
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- Name: test
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Type: STT_FUNC
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Section: .test
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Value: 0x1000
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||||
Size: 4
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||||
- Name: test2
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Type: STT_FUNC
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Section: .test2
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Value: 0x1000
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Size: 4
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# The remianing sections should be the null section, .test2, .symtab, .strtab,
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# and .shstrtab.
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#CHECK: SectionHeaderCount: 5
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#CHECK: Symbols [
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name:
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||||
#CHECK-NEXT: Value: 0x0
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||||
#CHECK-NEXT: Size: 0
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||||
#CHECK-NEXT: Binding: Local
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||||
#CHECK-NEXT: Type: None
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||||
#CHECK-NEXT: Other: 0
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||||
#CHECK-NEXT: Section: Undefined
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||||
#CHECK-NEXT: }
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name: test2
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#CHECK-NEXT: Value: 0x1000
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||||
#CHECK-NEXT: Size: 4
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||||
#CHECK-NEXT: Binding: Global
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||||
#CHECK-NEXT: Type: Function
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||||
#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: .test2
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#CHECK-NEXT: }
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#CHECK-NEXT:]
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109
test/tools/llvm-objcopy/remove-section.test
Normal file
109
test/tools/llvm-objcopy/remove-section.test
Normal file
@ -0,0 +1,109 @@
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# RUN: yaml2obj %s > %t
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# RUN: llvm-objcopy -R=.test2 %t %t2
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# RUN: llvm-readobj -file-headers -sections %t2 | FileCheck %s
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!ELF
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FileHeader:
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||||
Class: ELFCLASS64
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||||
Data: ELFDATA2LSB
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||||
Type: ET_REL
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||||
Machine: EM_X86_64
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||||
Sections:
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- Name: .test1
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Type: SHT_PROGBITS
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Flags: [ ]
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- Name: .test2
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Type: SHT_PROGBITS
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Flags: [ ]
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- Name: .test3
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Type: SHT_PROGBITS
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Flags: [ ]
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# CHECK: SectionHeaderCount: 6
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# CHECK: Sections [
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# CHECK: Section {
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# CHECK: Index: 0
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||||
# CHECK: Name: (0)
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# CHECK: Type: SHT_NULL (0x0)
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# CHECK: Flags [ (0x0)
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# CHECK: ]
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# CHECK: Address: 0x0
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# CHECK: Offset:
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# CHECK: Size:
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# CHECK: Link: 0
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# CHECK: Info: 0
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# CHECK: AddressAlignment: 0
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# CHECK: EntrySize: 0
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# CHECK: }
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# CHECK: Section {
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||||
# CHECK: Index: 1
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||||
# CHECK: Name: .test1
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||||
# CHECK: Type: SHT_PROGBITS (0x1)
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# CHECK: Flags [ (0x0)
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# CHECK: ]
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||||
# CHECK: Address: 0x0
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# CHECK: Offset:
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# CHECK: Size:
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# CHECK: Link: 0
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# CHECK: Info: 0
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||||
# CHECK: AddressAlignment: 0
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# CHECK: EntrySize: 0
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||||
# CHECK: }
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||||
# CHECK: Section {
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||||
# CHECK: Index: 2
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||||
# CHECK: Name: .test3
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||||
# CHECK: Type: SHT_PROGBITS (0x1)
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||||
# CHECK: Flags [ (0x0)
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# CHECK: ]
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# CHECK: Address: 0x0
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# CHECK: Offset:
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# CHECK: Size:
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# CHECK: Link: 0
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# CHECK: Info: 0
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# CHECK: AddressAlignment: 0
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# CHECK: EntrySize: 0
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# CHECK: }
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# CHECK: Section {
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||||
# CHECK: Index: 3
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||||
# CHECK: Name: .symtab
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||||
# CHECK: Type: SHT_SYMTAB (0x2)
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||||
# CHECK: Flags [ (0x0)
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||||
# CHECK: ]
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||||
# CHECK: Address: 0x0
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||||
# CHECK: Offset:
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||||
# CHECK: Size:
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# CHECK: Link: 4
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# CHECK: Info: 1
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||||
# CHECK: AddressAlignment: 8
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# CHECK: EntrySize: 24
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# CHECK: }
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# CHECK: Section {
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# CHECK: Index: 4
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||||
# CHECK: Name: .strtab
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||||
# CHECK: Type: SHT_STRTAB (0x3)
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# CHECK: Flags [ (0x0)
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# CHECK: ]
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||||
# CHECK: Address: 0x0
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||||
# CHECK: Offset:
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||||
# CHECK: Size:
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||||
# CHECK: Link: 0
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# CHECK: Info: 0
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||||
# CHECK: AddressAlignment: 1
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||||
# CHECK: EntrySize: 0
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||||
# CHECK: }
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# CHECK: Section {
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||||
# CHECK: Index: 5
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||||
# CHECK: Name: .shstrtab
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||||
# CHECK: Type: SHT_STRTAB (0x3)
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||||
# CHECK: Flags [ (0x0)
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# CHECK: ]
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||||
# CHECK: Address: 0x0
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# CHECK: Offset:
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||||
# CHECK: Size:
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||||
# CHECK: Link: 0
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||||
# CHECK: Info: 0
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||||
# CHECK: AddressAlignment: 1
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||||
# CHECK: EntrySize: 0
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||||
# CHECK: }
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||||
# CHECK: ]
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||||
11
test/tools/llvm-objcopy/remove-shstrtab-error.test
Normal file
11
test/tools/llvm-objcopy/remove-shstrtab-error.test
Normal file
@ -0,0 +1,11 @@
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# RUN: yaml2obj %s > %t
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# RUN: not llvm-objcopy -R .shstrtab %t %t2 2>&1 >/dev/null | FileCheck %s
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||||
!ELF
|
||||
FileHeader:
|
||||
Class: ELFCLASS64
|
||||
Data: ELFDATA2LSB
|
||||
Type: ET_REL
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||||
Machine: EM_X86_64
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# CHECK: Cannot remove .shstrtab because it is the section header string table.
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57
test/tools/llvm-objcopy/remove-symtab.test
Normal file
57
test/tools/llvm-objcopy/remove-symtab.test
Normal file
@ -0,0 +1,57 @@
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# RUN: yaml2obj %s > %t
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# RUN: llvm-objcopy -R .symtab %t %t2
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# RUN: llvm-readobj -file-headers -sections %t2 | FileCheck %s
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||||
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||||
!ELF
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||||
FileHeader:
|
||||
Class: ELFCLASS64
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||||
Data: ELFDATA2LSB
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||||
Type: ET_REL
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||||
Machine: EM_X86_64
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||||
|
||||
#CHECK: SectionHeaderCount: 3
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||||
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||||
#CHECK: Sections [
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||||
#CHECK-NEXT: Section {
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||||
#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: 0x0
|
||||
#CHECK-NEXT: Size: 0
|
||||
#CHECK-NEXT: Link: 0
|
||||
#CHECK-NEXT: Info: 0
|
||||
#CHECK-NEXT: AddressAlignment: 0
|
||||
#CHECK-NEXT: EntrySize: 0
|
||||
#CHECK-NEXT: }
|
||||
#CHECK-NEXT: Section {
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||||
#CHECK-NEXT: Index: 1
|
||||
#CHECK-NEXT: Name: .strtab
|
||||
#CHECK-NEXT: Type: SHT_STRTAB (0x3)
|
||||
#CHECK-NEXT: Flags [ (0x0)
|
||||
#CHECK-NEXT: ]
|
||||
#CHECK-NEXT: Address: 0x0
|
||||
#CHECK-NEXT: Offset:
|
||||
#CHECK-NEXT: Size: 1
|
||||
#CHECK-NEXT: Link: 0
|
||||
#CHECK-NEXT: Info: 0
|
||||
#CHECK-NEXT: AddressAlignment: 1
|
||||
#CHECK-NEXT: EntrySize: 0
|
||||
#CHECK-NEXT: }
|
||||
#CHECK-NEXT: Section {
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||||
#CHECK-NEXT: Index: 2
|
||||
#CHECK-NEXT: Name: .shstrtab (1)
|
||||
#CHECK-NEXT: Type: SHT_STRTAB (0x3)
|
||||
#CHECK-NEXT: Flags [ (0x0)
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||||
#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: ]
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||||
164
test/tools/llvm-objcopy/segment-shift-section-remove.test
Normal file
164
test/tools/llvm-objcopy/segment-shift-section-remove.test
Normal file
@ -0,0 +1,164 @@
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# RUN: yaml2obj %s -o %t
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# RUN: llvm-objcopy -R .text2 %t %t2
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# RUN: llvm-readobj -file-headers -sections -program-headers %t2 | FileCheck %s
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||||
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||||
!ELF
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||||
FileHeader:
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||||
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: 0x1000
|
||||
- Name: .text2
|
||||
Type: SHT_PROGBITS
|
||||
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
|
||||
Address: 0x2000
|
||||
AddressAlign: 0x1000
|
||||
Size: 0x1000
|
||||
- Name: .text3
|
||||
Type: SHT_PROGBITS
|
||||
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
|
||||
Address: 0x3000
|
||||
AddressAlign: 0x1000
|
||||
Size: 0x1000
|
||||
ProgramHeaders:
|
||||
- Type: PT_LOAD
|
||||
Flags: [ PF_R ]
|
||||
VAddr: 0x1000
|
||||
PAddr: 0x1000
|
||||
Sections:
|
||||
- Section: .text
|
||||
- Type: PT_LOAD
|
||||
Flags: [ PF_X, PF_R ]
|
||||
VAddr: 0x3000
|
||||
PAddr: 0x3000
|
||||
Sections:
|
||||
- Section: .text3
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||||
|
||||
#CHECK: SectionHeaderCount: 6
|
||||
|
||||
# CHECK: Sections [
|
||||
# CHECK-NEXT: 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: 0x0
|
||||
# CHECK-NEXT: Size: 0
|
||||
# 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 (0x1)
|
||||
# CHECK-NEXT: Flags [ (0x6)
|
||||
# CHECK-NEXT: SHF_ALLOC (0x2)
|
||||
# CHECK-NEXT: SHF_EXECINSTR (0x4)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Address: 0x1000
|
||||
# CHECK-NEXT: Offset: 0x1000
|
||||
# CHECK-NEXT: Size: 4096
|
||||
# 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 [ (0x6)
|
||||
# CHECK-NEXT: SHF_ALLOC (0x2)
|
||||
# CHECK-NEXT: SHF_EXECINSTR (0x4)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Address: 0x3000
|
||||
# CHECK-NEXT: Offset: 0x2000
|
||||
# CHECK-NEXT: Size: 4096
|
||||
# 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: .symtab
|
||||
# CHECK-NEXT: Type: SHT_SYMTAB (0x2)
|
||||
# CHECK-NEXT: Flags [ (0x0)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Address: 0x0
|
||||
# CHECK-NEXT: Offset: 0x3000
|
||||
# CHECK-NEXT: Size: 24
|
||||
# CHECK-NEXT: Link: 4
|
||||
# CHECK-NEXT: Info: 1
|
||||
# CHECK-NEXT: AddressAlignment: 8
|
||||
# CHECK-NEXT: EntrySize: 24
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Section {
|
||||
# CHECK-NEXT: Index: 4
|
||||
# CHECK-NEXT: Name: .strtab
|
||||
# CHECK-NEXT: Type: SHT_STRTAB (0x3)
|
||||
# CHECK-NEXT: Flags [ (0x0)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Address: 0x0
|
||||
# CHECK-NEXT: Offset: 0x3018
|
||||
# CHECK-NEXT: Size:
|
||||
# CHECK-NEXT: Link: 0
|
||||
# CHECK-NEXT: Info: 0
|
||||
# CHECK-NEXT: AddressAlignment: 1
|
||||
# CHECK-NEXT: EntrySize: 0
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Section {
|
||||
# CHECK-NEXT: Index: 5
|
||||
# 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: 0x1000
|
||||
# CHECK-NEXT: PhysicalAddress: 0x1000
|
||||
# CHECK-NEXT: FileSize: 4096
|
||||
# CHECK-NEXT: MemSize: 4096
|
||||
# CHECK-NEXT: Flags [ (0x4)
|
||||
# CHECK-NEXT: PF_R (0x4)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Alignment: 4096
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: ProgramHeader {
|
||||
# CHECK-NEXT: Type: PT_LOAD (0x1)
|
||||
# CHECK-NEXT: Offset: 0x2000
|
||||
# CHECK-NEXT: VirtualAddress: 0x3000
|
||||
# CHECK-NEXT: PhysicalAddress: 0x3000
|
||||
# CHECK-NEXT: FileSize: 4096
|
||||
# CHECK-NEXT: MemSize: 4096
|
||||
# CHECK-NEXT: Flags [ (0x5)
|
||||
# CHECK-NEXT: PF_R (0x4)
|
||||
# CHECK-NEXT: PF_X (0x1)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Alignment: 4096
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT:]
|
||||
156
test/tools/llvm-objcopy/segment-test-remove-section.test
Normal file
156
test/tools/llvm-objcopy/segment-test-remove-section.test
Normal file
@ -0,0 +1,156 @@
|
||||
# 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 %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 ]
|
||||
Sections:
|
||||
- Section: .text
|
||||
- Section: .text2
|
||||
- Section: .text3
|
||||
|
||||
# Make sure that when we remove a section we overwrite it with zeros
|
||||
# DATA: 0020000 00 00 00 00
|
||||
|
||||
#CHECK: SectionHeaderCount: 6
|
||||
|
||||
# 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: .symtab
|
||||
# CHECK-NEXT: Type: SHT_SYMTAB (0x2)
|
||||
# CHECK-NEXT: Flags [ (0x0)
|
||||
# CHECK-NEXT: ]
|
||||
# CHECK-NEXT: Address: 0x0
|
||||
# CHECK-NEXT: Offset:
|
||||
# CHECK-NEXT: Size:
|
||||
# CHECK-NEXT: Link: 4
|
||||
# CHECK-NEXT: Info: 1
|
||||
# CHECK-NEXT: AddressAlignment: 8
|
||||
# CHECK-NEXT: EntrySize: 24
|
||||
# CHECK-NEXT: }
|
||||
# CHECK-NEXT: Section {
|
||||
# CHECK-NEXT: Index: 4
|
||||
# CHECK-NEXT: Name: .strtab
|
||||
# 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: Section {
|
||||
# CHECK-NEXT: Index: 5
|
||||
# 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:]
|
||||
11
test/tools/llvm-objcopy/symtab-error-on-remove-strtab.test
Normal file
11
test/tools/llvm-objcopy/symtab-error-on-remove-strtab.test
Normal file
@ -0,0 +1,11 @@
|
||||
# RUN: yaml2obj %s > %t
|
||||
# RUN: not llvm-objcopy -R .strtab %t %t2 2>&1 >/dev/null | FileCheck %s
|
||||
|
||||
!ELF
|
||||
FileHeader:
|
||||
Class: ELFCLASS64
|
||||
Data: ELFDATA2LSB
|
||||
Type: ET_REL
|
||||
Machine: EM_X86_64
|
||||
|
||||
# CHECK: String table .strtab cannot be removed because it is referenced by the symbol table .symtab
|
||||
@ -37,6 +37,7 @@ void Segment::writeSegment(FileOutputBuffer &Out) const {
|
||||
std::copy(std::begin(Contents), std::end(Contents), Buf);
|
||||
}
|
||||
|
||||
void SectionBase::removeSectionReferences(const SectionBase *Sec) {}
|
||||
void SectionBase::initialize(SectionTableRef SecTable) {}
|
||||
void SectionBase::finalize() {}
|
||||
|
||||
@ -138,6 +139,19 @@ void SymbolTableSection::addSymbol(StringRef Name, uint8_t Bind, uint8_t Type,
|
||||
Size += this->EntrySize;
|
||||
}
|
||||
|
||||
void SymbolTableSection::removeSectionReferences(const SectionBase *Sec) {
|
||||
if (SymbolNames == Sec) {
|
||||
error("String table " + SymbolNames->Name +
|
||||
" cannot be removed because it is referenced by the symbol table " +
|
||||
this->Name);
|
||||
}
|
||||
auto Iter =
|
||||
std::remove_if(std::begin(Symbols), std::end(Symbols),
|
||||
[=](const SymPtr &Sym) { return Sym->DefinedIn == Sec; });
|
||||
Size -= (std::end(Symbols) - Iter) * this->EntrySize;
|
||||
Symbols.erase(Iter, std::end(Symbols));
|
||||
}
|
||||
|
||||
void SymbolTableSection::initialize(SectionTableRef SecTable) {
|
||||
Size = 0;
|
||||
setStrTab(SecTable.getSectionOfType<StringTableSection>(
|
||||
@ -195,7 +209,19 @@ void SymbolTableSectionImpl<ELFT>::writeSection(
|
||||
}
|
||||
|
||||
template <class SymTabType>
|
||||
void RelocationSectionBase<SymTabType>::initialize(SectionTableRef SecTable) {
|
||||
void RelocSectionWithSymtabBase<SymTabType>::removeSectionReferences(
|
||||
const SectionBase *Sec) {
|
||||
if (Symbols == Sec) {
|
||||
error("Symbol table " + Symbols->Name + " cannot be removed because it is "
|
||||
"referenced by the relocation "
|
||||
"section " +
|
||||
this->Name);
|
||||
}
|
||||
}
|
||||
|
||||
template <class SymTabType>
|
||||
void RelocSectionWithSymtabBase<SymTabType>::initialize(
|
||||
SectionTableRef SecTable) {
|
||||
setSymTab(SecTable.getSectionOfType<SymTabType>(
|
||||
Link,
|
||||
"Link field value " + Twine(Link) + " in section " + Name + " is invalid",
|
||||
@ -210,7 +236,8 @@ void RelocationSectionBase<SymTabType>::initialize(SectionTableRef SecTable) {
|
||||
setSection(nullptr);
|
||||
}
|
||||
|
||||
template <class SymTabType> void RelocationSectionBase<SymTabType>::finalize() {
|
||||
template <class SymTabType>
|
||||
void RelocSectionWithSymtabBase<SymTabType>::finalize() {
|
||||
this->Link = Symbols->Index;
|
||||
if (SecToApplyRel != nullptr)
|
||||
this->Info = SecToApplyRel->Index;
|
||||
@ -249,6 +276,14 @@ void DynamicRelocationSection::writeSection(llvm::FileOutputBuffer &Out) const {
|
||||
Out.getBufferStart() + Offset);
|
||||
}
|
||||
|
||||
void SectionWithStrTab::removeSectionReferences(const SectionBase *Sec) {
|
||||
if (StrTab == Sec) {
|
||||
error("String table " + StrTab->Name + " cannot be removed because it is "
|
||||
"referenced by the section " +
|
||||
this->Name);
|
||||
}
|
||||
}
|
||||
|
||||
bool SectionWithStrTab::classof(const SectionBase *S) {
|
||||
return isa<DynamicSymbolTableSection>(S) || isa<DynamicSection>(S);
|
||||
}
|
||||
@ -589,6 +624,41 @@ void Object<ELFT>::writeSectionData(FileOutputBuffer &Out) const {
|
||||
Section->writeSection(Out);
|
||||
}
|
||||
|
||||
template <class ELFT>
|
||||
void Object<ELFT>::removeSections(
|
||||
std::function<bool(const SectionBase &)> ToRemove) {
|
||||
|
||||
auto Iter = std::stable_partition(
|
||||
std::begin(Sections), std::end(Sections), [=](const SecPtr &Sec) {
|
||||
if (ToRemove(*Sec))
|
||||
return false;
|
||||
if (auto RelSec = dyn_cast<RelocationSectionBase>(Sec.get()))
|
||||
return !ToRemove(*RelSec->getSection());
|
||||
return true;
|
||||
});
|
||||
if (SymbolTable != nullptr && ToRemove(*SymbolTable))
|
||||
SymbolTable = nullptr;
|
||||
if (ToRemove(*SectionNames)) {
|
||||
// Right now llvm-objcopy always outputs section headers. This will not
|
||||
// always be the case. Eventully the section header table will become
|
||||
// optional and if no section header is output then there dosn't need to be
|
||||
// a section header string table.
|
||||
error("Cannot remove " + SectionNames->Name +
|
||||
" because it is the section header string table.");
|
||||
}
|
||||
// Now make sure there are no remaining references to the sections that will
|
||||
// be removed. Sometimes it is impossible to remove a reference so we emit
|
||||
// an error here instead.
|
||||
for (auto &RemoveSec : make_range(Iter, std::end(Sections))) {
|
||||
for (auto &Segment : Segments)
|
||||
Segment->removeSection(RemoveSec.get());
|
||||
for (auto &KeepSec : make_range(std::begin(Sections), Iter))
|
||||
KeepSec->removeSectionReferences(RemoveSec.get());
|
||||
}
|
||||
// Now finally get rid of them all togethor.
|
||||
Sections.erase(Iter, std::end(Sections));
|
||||
}
|
||||
|
||||
template <class ELFT> void ELFObject<ELFT>::sortSections() {
|
||||
// Put all sections in offset order. Maintain the ordering as closely as
|
||||
// possible while meeting that demand however.
|
||||
@ -692,7 +762,8 @@ template <class ELFT> void ELFObject<ELFT>::finalize() {
|
||||
this->SectionNames->addString(Section->Name);
|
||||
}
|
||||
// Make sure we add the names of all the symbols.
|
||||
this->SymbolTable->addSymbolNames();
|
||||
if (this->SymbolTable != nullptr)
|
||||
this->SymbolTable->addSymbolNames();
|
||||
|
||||
sortSections();
|
||||
assignOffsets();
|
||||
|
||||
@ -58,6 +58,7 @@ public:
|
||||
virtual ~SectionBase() {}
|
||||
virtual void initialize(SectionTableRef SecTable);
|
||||
virtual void finalize();
|
||||
virtual void removeSectionReferences(const SectionBase *Sec);
|
||||
template <class ELFT> void writeHeader(llvm::FileOutputBuffer &Out) const;
|
||||
virtual void writeSection(llvm::FileOutputBuffer &Out) const = 0;
|
||||
};
|
||||
@ -98,7 +99,8 @@ public:
|
||||
return *Sections.begin();
|
||||
return nullptr;
|
||||
}
|
||||
void addSection(const SectionBase *sec) { Sections.insert(sec); }
|
||||
void removeSection(const SectionBase *Sec) { Sections.erase(Sec); }
|
||||
void addSection(const SectionBase *Sec) { Sections.insert(Sec); }
|
||||
template <class ELFT> void writeHeader(llvm::FileOutputBuffer &Out) const;
|
||||
void writeSegment(llvm::FileOutputBuffer &Out) const;
|
||||
};
|
||||
@ -164,6 +166,8 @@ protected:
|
||||
std::vector<std::unique_ptr<Symbol>> Symbols;
|
||||
StringTableSection *SymbolNames = nullptr;
|
||||
|
||||
typedef std::unique_ptr<Symbol> SymPtr;
|
||||
|
||||
public:
|
||||
void setStrTab(StringTableSection *StrTab) { SymbolNames = StrTab; }
|
||||
void addSymbol(llvm::StringRef Name, uint8_t Bind, uint8_t Type,
|
||||
@ -171,6 +175,7 @@ public:
|
||||
uint64_t Sz);
|
||||
void addSymbolNames();
|
||||
const Symbol *getSymbolByIndex(uint32_t Index) const;
|
||||
void removeSectionReferences(const SectionBase *Sec) override;
|
||||
void initialize(SectionTableRef SecTable) override;
|
||||
void finalize() override;
|
||||
static bool classof(const SectionBase *S) {
|
||||
@ -190,20 +195,49 @@ struct Relocation {
|
||||
uint32_t Type;
|
||||
};
|
||||
|
||||
template <class SymTabType> class RelocationSectionBase : public SectionBase {
|
||||
private:
|
||||
SymTabType *Symbols = nullptr;
|
||||
// All relocation sections denote relocations to apply to another section.
|
||||
// However, some relocation sections use a dynamic symbol table and others use
|
||||
// a regular symbol table. Because the types of the two symbol tables differ in
|
||||
// our system (because they should behave differently) we can't uniformly
|
||||
// represent all relocations with the same base class if we expose an interface
|
||||
// that mentions the symbol table type. So we split the two base types into two
|
||||
// different classes, one which handles the section the relocation is applied to
|
||||
// and another which handles the symbol table type. The symbol table type is
|
||||
// taken as a type parameter to the class (see RelocSectionWithSymtabBase).
|
||||
class RelocationSectionBase : public SectionBase {
|
||||
protected:
|
||||
SectionBase *SecToApplyRel = nullptr;
|
||||
|
||||
public:
|
||||
void setSymTab(SymTabType *StrTab) { Symbols = StrTab; }
|
||||
const SectionBase *getSection() const { return SecToApplyRel; }
|
||||
void setSection(SectionBase *Sec) { SecToApplyRel = Sec; }
|
||||
|
||||
static bool classof(const SectionBase *S) {
|
||||
return S->Type == llvm::ELF::SHT_REL || S->Type == llvm::ELF::SHT_RELA;
|
||||
}
|
||||
};
|
||||
|
||||
// Takes the symbol table type to use as a parameter so that we can deduplicate
|
||||
// that code between the two symbol table types.
|
||||
template <class SymTabType>
|
||||
class RelocSectionWithSymtabBase : public RelocationSectionBase {
|
||||
private:
|
||||
SymTabType *Symbols = nullptr;
|
||||
|
||||
protected:
|
||||
RelocSectionWithSymtabBase() {}
|
||||
|
||||
public:
|
||||
void setSymTab(SymTabType *StrTab) { Symbols = StrTab; }
|
||||
|
||||
void removeSectionReferences(const SectionBase *Sec) override;
|
||||
void initialize(SectionTableRef SecTable) override;
|
||||
void finalize() override;
|
||||
};
|
||||
|
||||
template <class ELFT>
|
||||
class RelocationSection : public RelocationSectionBase<SymbolTableSection> {
|
||||
class RelocationSection
|
||||
: public RelocSectionWithSymtabBase<SymbolTableSection> {
|
||||
private:
|
||||
typedef typename ELFT::Rel Elf_Rel;
|
||||
typedef typename ELFT::Rela Elf_Rela;
|
||||
@ -230,6 +264,7 @@ private:
|
||||
public:
|
||||
SectionWithStrTab(llvm::ArrayRef<uint8_t> Data) : Section(Data) {}
|
||||
void setStrTab(StringTableSection *StringTable) { StrTab = StringTable; }
|
||||
void removeSectionReferences(const SectionBase *Sec) override;
|
||||
void initialize(SectionTableRef SecTable) override;
|
||||
void finalize() override;
|
||||
static bool classof(const SectionBase *S);
|
||||
@ -253,7 +288,7 @@ public:
|
||||
};
|
||||
|
||||
class DynamicRelocationSection
|
||||
: public RelocationSectionBase<DynamicSymbolTableSection> {
|
||||
: public RelocSectionWithSymtabBase<DynamicSymbolTableSection> {
|
||||
private:
|
||||
llvm::ArrayRef<uint8_t> Contents;
|
||||
|
||||
@ -304,6 +339,7 @@ public:
|
||||
uint32_t Flags;
|
||||
|
||||
Object(const llvm::object::ELFObjectFile<ELFT> &Obj);
|
||||
void removeSections(std::function<bool(const SectionBase &)> ToRemove);
|
||||
virtual size_t totalSize() const = 0;
|
||||
virtual void finalize() = 0;
|
||||
virtual void write(llvm::FileOutputBuffer &Out) const = 0;
|
||||
|
||||
@ -56,17 +56,24 @@ cl::opt<std::string> OutputFilename(cl::Positional, cl::desc("<output>"),
|
||||
cl::opt<std::string>
|
||||
OutputFormat("O", cl::desc("set output format to one of the following:"
|
||||
"\n\tbinary"));
|
||||
// TODO: make this a cl::list to support removing multiple sections
|
||||
cl::opt<std::string> ToRemove("remove-section",
|
||||
cl::desc("Remove a specific section"));
|
||||
cl::alias ToRemoveA("R", cl::desc("Alias for remove-section"), cl::aliasopt(ToRemove));
|
||||
|
||||
void CopyBinary(const ELFObjectFile<ELF64LE> &ObjFile) {
|
||||
std::unique_ptr<FileOutputBuffer> Buffer;
|
||||
std::unique_ptr<Object<ELF64LE>> Obj;
|
||||
if (!OutputFormat.empty() && OutputFormat != "binary")
|
||||
error("invalid output format '" + OutputFormat + "'");
|
||||
|
||||
if (!OutputFormat.empty() && OutputFormat == "binary")
|
||||
Obj = llvm::make_unique<BinaryObject<ELF64LE>>(ObjFile);
|
||||
else
|
||||
Obj = llvm::make_unique<ELFObject<ELF64LE>>(ObjFile);
|
||||
if (!ToRemove.empty()) {
|
||||
Obj->removeSections(
|
||||
[&](const SectionBase &Sec) { return ToRemove == Sec.Name; });
|
||||
}
|
||||
Obj->finalize();
|
||||
ErrorOr<std::unique_ptr<FileOutputBuffer>> BufferOrErr =
|
||||
FileOutputBuffer::create(OutputFilename, Obj->totalSize(),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user