## This test shows that llvm-objdump can handle sections with the same address ## when symbols in those sections are referenced. In the past, the section ## picked was non-deterministic, resulting in different symbols being found for ## the section. The test uses YAML for the input, as we need a fully linked ELF ## to reproduce the original failure. ## Two empty sections, one with symbol in, one without. # RUN: yaml2obj %s --docnum=1 -o %t1 -D SIZE1=0 -D SIZE2=0 -D SECTION=.second -D INDEX=SHN_ABS # RUN: llvm-objdump -d %t1 | FileCheck %s --check-prefix=TARGET # RUN: yaml2obj %s --docnum=1 -o %t2 -D SIZE1=0 -D SIZE2=0 -D SECTION=.first -D INDEX=SHN_ABS # RUN: llvm-objdump -d %t2 | FileCheck %s --check-prefix=TARGET ## Two sections, one empty with symbol, other non-empty, without symbol. # RUN: yaml2obj %s --docnum=1 -o %t3 -D SIZE1=1 -D SIZE2=0 -D SECTION=.second -D INDEX=SHN_ABS # RUN: llvm-objdump -d %t3 | FileCheck %s --check-prefix=TARGET # RUN: yaml2obj %s --docnum=1 -o %t4 -D SIZE1=0 -D SIZE2=1 -D SECTION=.first -D INDEX=SHN_ABS # RUN: llvm-objdump -d %t4 | FileCheck %s --check-prefix=TARGET ## Fall back to absolute symbol if no symbol found in candidate sections. # RUN: yaml2obj %s --docnum=1 -o %t5 -D SIZE1=1 -D SIZE2=0 -D SECTION=.caller -D INDEX=SHN_ABS # RUN: llvm-objdump -d %t5 | FileCheck %s --check-prefix=ABSOLUTE ## Show that other symbols with reserved st_shndx values are treated as absolute ## symbols. # RUN: yaml2obj %s --docnum=1 -o %t6 -D SIZE1=1 -D SIZE2=0 -D SECTION=.caller -D INDEX=SHN_LOPROC # RUN: llvm-objdump -d %t6 | FileCheck %s --check-prefix=ABSOLUTE ## Print no target if no symbol in section/absolute symbol found. # RUN: llvm-objcopy %t5 %t7 -N other # RUN: llvm-objdump -d %t7 | FileCheck %s --check-prefix=FAIL # TARGET: callq 0x5 <target> # ABSOLUTE: callq 0x5 <other+0x5> # FAIL: callq 0x5{{$}} --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Machine: EM_X86_64 Sections: - Name: .caller Type: SHT_PROGBITS Flags: [SHF_ALLOC, SHF_EXECINSTR] Address: 0x0 Content: e800000000 ## Call instruction to next address. - Name: .first Type: SHT_PROGBITS Flags: [SHF_ALLOC, SHF_EXECINSTR] Address: 0x5 Size: [[SIZE1]] - Name: .second Type: SHT_PROGBITS Flags: [SHF_ALLOC, SHF_EXECINSTR] Address: 0x5 Size: [[SIZE2]] Symbols: - Name: target Section: [[SECTION]] Value: 0x5 - Name: other Index: [[INDEX]] Value: 0x0 ## Two empty sections, both with symbols. # RUN: yaml2obj %s --docnum=2 -o %t7 -D SIZE1=0 -D SIZE2=0 -D SYMVAL1=0x5 -D SYMVAL2=0x5 # RUN: llvm-objdump -d %t7 | FileCheck %s --check-prefix=SECOND ## Two sections, both with symbols, one empty, the other not. # RUN: yaml2obj %s --docnum=2 -o %t8 -D SIZE1=1 -D SIZE2=0 -D SYMVAL1=0x5 -D SYMVAL2=0x5 # RUN: llvm-objdump -d %t8 | FileCheck %s --check-prefix=FIRST # RUN: yaml2obj %s --docnum=2 -o %t9 -D SIZE1=0 -D SIZE2=1 -D SYMVAL1=0x5 -D SYMVAL2=0x5 # RUN: llvm-objdump -d %t9 | FileCheck %s --check-prefix=SECOND ## Two sections, both with symbols, one empty, other not, symbol in non-empty ## section has value higher than target address. # RUN: yaml2obj %s --docnum=2 -o %t10 -D SIZE1=1 -D SIZE2=0 -D SYMVAL1=0x6 -D SYMVAL2=0x5 # RUN: llvm-objdump -d %t10 | FileCheck %s --check-prefix=SECOND # RUN: yaml2obj %s --docnum=2 -o %t11 -D SIZE1=0 -D SIZE2=1 -D SYMVAL1=0x5 -D SYMVAL2=0x6 # RUN: llvm-objdump -d %t11 | FileCheck %s --check-prefix=FIRST # FIRST: callq 0x5 <first> # SECOND: callq 0x5 <second> --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Machine: EM_X86_64 Sections: - Name: .caller Type: SHT_PROGBITS Flags: [SHF_ALLOC, SHF_EXECINSTR] Address: 0x0 Content: e800000000 ## Call instruction to next address. - Name: .first Type: SHT_PROGBITS Flags: [SHF_ALLOC, SHF_EXECINSTR] Address: 0x5 Size: [[SIZE1]] - Name: .second Type: SHT_PROGBITS Flags: [SHF_ALLOC, SHF_EXECINSTR] Address: 0x5 Size: [[SIZE2]] Symbols: - Name: first Section: .first Value: [[SYMVAL1]] - Name: second Section: .second Value: [[SYMVAL2]]