a6436b0b3a
Currently we have to set 'Machine' to something in our YAML descriptions. Usually we use 'EM_X86_64' for 64-bit targets and 'EM_386' for 32-bit targets. At the same time, in fact, in most cases our tests do not need a machine type and we can use 'EM_NONE'. This is cleaner, because avoids the need of using a particular machine. In this patch I've made the 'Machine' key optional (the default value, when it is not specified is `EM_NONE`) and removed it (where possible) from yaml2obj, obj2yaml and llvm-readobj tests. There are few tests left where I decided not to remove it, because I didn't want to touch CHECK lines or doing anything more complex than a removing a "Machine: *" line and formatting lines around. Differential revision: https://reviews.llvm.org/D86202
85 lines
2.9 KiB
Plaintext
85 lines
2.9 KiB
Plaintext
## Check how llvm-readelf prints sections to segments mapping.
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## Check that --section-mapping produces a sections to segments
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## mapping and not anything else.
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# RUN: yaml2obj %s -o %t64.elf
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# RUN: llvm-readelf --section-mapping %t64.elf \
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# RUN: | FileCheck %s --check-prefix=MAPPING --strict-whitespace --match-full-lines --implicit-check-not={{.}}
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# MAPPING: Section to Segment mapping:
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# MAPPING-NEXT: Segment Sections...
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# MAPPING-NEXT: 00 .foo.begin .foo.end {{$}}
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# MAPPING-NEXT: 01 .bar.begin .bar.end {{$}}
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# MAPPING-NEXT: None .strtab .shstrtab {{$}}
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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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EPhEntSize: [[PHENTSIZE=<none>]]
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Sections:
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- Name: .foo.begin
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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Address: 0x1000
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Size: 0x1
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- Name: .foo.end
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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Size: 0x2
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- Name: .bar.begin
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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Address: 0x2000
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Size: 0x3
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- Name: .bar.end
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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Size: 0x4
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ProgramHeaders:
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## Case 1: an arbitrary segment with sections.
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- Type: PT_PHDR
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Flags: [ PF_W ]
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VAddr: 0x1000
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Sections:
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- Section: .foo.begin
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- Section: .foo.end
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## Case 2: another segment with different sections.
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- Type: PT_PHDR
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Flags: [ PF_X ]
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VAddr: 0x2000
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Sections:
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- Section: .bar.begin
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- Section: .bar.end
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## Check that --section-mapping=false --program-headers produces just program headers.
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# RUN: llvm-readelf --section-mapping=false --program-headers %t64.elf \
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# RUN: | FileCheck %s --check-prefix=SEC-MAPPING-FALSE --implicit-check-not="Section to Segment mapping:"
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# SEC-MAPPING-FALSE: Program Headers:
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## Check that only one copy of the section/segment mapping table is produced
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## when both --section-mapping and --program-headers are used.
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# RUN: llvm-readelf --section-mapping --program-headers %t64.elf \
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# RUN: | FileCheck %s --check-prefix=MAPPING --implicit-check-not="Section to Segment mapping:"
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## Check the output when an object has no section headers.
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## RUN: llvm-objcopy --strip-sections %t64.elf %tno-shdrs.o
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## RUN: llvm-readelf --section-mapping %tno-shdrs.o | FileCheck %s --check-prefix=NO-SECHDRS
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# NO-SECHDRS: Section to Segment mapping:
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# NO-SECHDRS-NEXT: Segment Sections...
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# NO-SECHDRS-NEXT: 00 {{$}}
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# NO-SECHDRS-NEXT: 01 {{$}}
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# NO-SECHDRS-NOT: {{.}}
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## Check we report a warning when we are unable to read program headers.
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# RUN: yaml2obj %s -DPHENTSIZE=1 -o %t64-err1.elf
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# RUN: llvm-readelf --section-mapping %t64-err1.elf 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64-err1.elf --check-prefix=PHENTSIZE
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# PHENTSIZE: Section to Segment mapping:
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# PHENTSIZE-NEXT: Segment Sections...
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# PHENTSIZE-NEXT: warning: '[[FILE]]': can't read program headers to build section to segment mapping: invalid e_phentsize: 1
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