115 lines
4.2 KiB
Plaintext
115 lines
4.2 KiB
Plaintext
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## This test shows that llvm-objdump can handle sections with the same address
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## when symbols in those sections are referenced. In the past, the section
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## picked was non-deterministic, resulting in different symbols being found for
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## the section. The test uses YAML for the input, as we need a fully linked ELF
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## to reproduce the original failure.
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## Two empty sections, one with symbol in, one without.
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# RUN: yaml2obj %s --docnum=1 -o %t1 -D SIZE1=0 -D SIZE2=0 -D SECTION=.second -D INDEX=SHN_ABS
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# RUN: llvm-objdump -d %t1 | FileCheck %s --check-prefix=TARGET
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# RUN: yaml2obj %s --docnum=1 -o %t2 -D SIZE1=0 -D SIZE2=0 -D SECTION=.first -D INDEX=SHN_ABS
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# RUN: llvm-objdump -d %t2 | FileCheck %s --check-prefix=TARGET
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## Two sections, one empty with symbol, other non-empty, without symbol.
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# RUN: yaml2obj %s --docnum=1 -o %t3 -D SIZE1=1 -D SIZE2=0 -D SECTION=.second -D INDEX=SHN_ABS
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# RUN: llvm-objdump -d %t3 | FileCheck %s --check-prefix=TARGET
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# RUN: yaml2obj %s --docnum=1 -o %t4 -D SIZE1=0 -D SIZE2=1 -D SECTION=.first -D INDEX=SHN_ABS
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# RUN: llvm-objdump -d %t4 | FileCheck %s --check-prefix=TARGET
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## Fall back to absolute symbol if no symbol found in candidate sections.
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# RUN: yaml2obj %s --docnum=1 -o %t5 -D SIZE1=1 -D SIZE2=0 -D SECTION=.caller -D INDEX=SHN_ABS
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# RUN: llvm-objdump -d %t5 | FileCheck %s --check-prefix=ABSOLUTE
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## Show that other symbols with reserved st_shndx values are treated as absolute
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## symbols.
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# RUN: yaml2obj %s --docnum=1 -o %t6 -D SIZE1=1 -D SIZE2=0 -D SECTION=.caller -D INDEX=SHN_LOPROC
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# RUN: llvm-objdump -d %t6 | FileCheck %s --check-prefix=ABSOLUTE
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## Print no target if no symbol in section/absolute symbol found.
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# RUN: llvm-objcopy %t5 %t7 -N other
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# RUN: llvm-objdump -d %t7 | FileCheck %s --check-prefix=FAIL
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# TARGET: callq 0x5 <target>
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# ABSOLUTE: callq 0x5 <other+0x5>
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# FAIL: callq 0x5{{$}}
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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_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .caller
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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Address: 0x0
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Content: e800000000 ## Call instruction to next address.
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- Name: .first
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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Address: 0x5
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Size: [[SIZE1]]
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- Name: .second
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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Address: 0x5
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Size: [[SIZE2]]
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Symbols:
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- Name: target
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Section: [[SECTION]]
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Value: 0x5
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- Name: other
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Index: [[INDEX]]
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Value: 0x0
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## Two empty sections, both with symbols.
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# RUN: yaml2obj %s --docnum=2 -o %t7 -D SIZE1=0 -D SIZE2=0 -D SYMVAL1=0x5 -D SYMVAL2=0x5
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# RUN: llvm-objdump -d %t7 | FileCheck %s --check-prefix=SECOND
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## Two sections, both with symbols, one empty, the other not.
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# RUN: yaml2obj %s --docnum=2 -o %t8 -D SIZE1=1 -D SIZE2=0 -D SYMVAL1=0x5 -D SYMVAL2=0x5
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# RUN: llvm-objdump -d %t8 | FileCheck %s --check-prefix=FIRST
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# RUN: yaml2obj %s --docnum=2 -o %t9 -D SIZE1=0 -D SIZE2=1 -D SYMVAL1=0x5 -D SYMVAL2=0x5
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# RUN: llvm-objdump -d %t9 | FileCheck %s --check-prefix=SECOND
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## Two sections, both with symbols, one empty, other not, symbol in non-empty
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## section has value higher than target address.
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# RUN: yaml2obj %s --docnum=2 -o %t10 -D SIZE1=1 -D SIZE2=0 -D SYMVAL1=0x6 -D SYMVAL2=0x5
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# RUN: llvm-objdump -d %t10 | FileCheck %s --check-prefix=SECOND
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# RUN: yaml2obj %s --docnum=2 -o %t11 -D SIZE1=0 -D SIZE2=1 -D SYMVAL1=0x5 -D SYMVAL2=0x6
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# RUN: llvm-objdump -d %t11 | FileCheck %s --check-prefix=FIRST
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# FIRST: callq 0x5 <first>
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# SECOND: callq 0x5 <second>
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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_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .caller
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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Address: 0x0
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Content: e800000000 ## Call instruction to next address.
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- Name: .first
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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Address: 0x5
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Size: [[SIZE1]]
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- Name: .second
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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Address: 0x5
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Size: [[SIZE2]]
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Symbols:
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- Name: first
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Section: .first
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Value: [[SYMVAL1]]
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- Name: second
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Section: .second
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Value: [[SYMVAL2]]
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