a7a447be0f
Imagine we have a YAML declaration of few sections: `foo1`, `<unnamed 2>`, `foo3`, `foo4`. To put them into segment we can do (1*): ``` Sections: - Section: foo1 - Section: foo4 ``` or we can use (2*): ``` Sections: - Section: foo1 - Section: foo3 - Section: foo4 ``` or (3*) : ``` Sections: - Section: foo1 ## "(index 2)" here is a name that we automatically created for a unnamed section. - Section: (index 2) - Section: foo3 - Section: foo4 ``` It looks really confusing that we don't have to list all of sections. At first I've tried to make this rule stricter and report an error when there is a gap (i.e. when a section is included into segment, but not listed explicitly). This did not work perfect, because such approach conflicts with unnamed sections/fills (see (3*)). This patch drops "Sections" key and introduces 2 keys instead: `FirstSec` and `LastSec`. Both are optional. Differential revision: https://reviews.llvm.org/D90458
100 lines
3.1 KiB
Plaintext
100 lines
3.1 KiB
Plaintext
## In this test we check the --needed-libs option.
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# RUN: yaml2obj %s --docnum=1 -o %t1
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# RUN: llvm-readobj --needed-libs %t1 2>&1 \
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# RUN: | FileCheck %s -DFILE=%t1 --implicit-check-not=warning: --strict-whitespace --check-prefix=NEEDED-LIBS
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# RUN: llvm-readelf --needed-libs %t1 2>&1 \
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# RUN: | FileCheck %s -DFILE=%t1 --implicit-check-not=warning: --strict-whitespace --check-prefix=NEEDED-LIBS
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## Check that library names are sorted when printed.
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## Document that we also sort error entries.
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# NEEDED-LIBS:{{^}}NeededLibraries [{{$}}
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# NEEDED-LIBS-NEXT: warning: '[[FILE]]': string table at offset 0x78: unable to read the string at 0x9999a11: it goes past the end of the table (0x85){{$}}
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# NEEDED-LIBS-NEXT: warning: '[[FILE]]': string table at offset 0x78: unable to read the string at 0x1111189: it goes past the end of the table (0x85){{$}}
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# NEEDED-LIBS-NEXT:{{^}} <?>{{$}}
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# NEEDED-LIBS-NEXT:{{^}} <?>{{$}}
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# NEEDED-LIBS-NEXT:{{^}} aaa{{$}}
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# NEEDED-LIBS-NEXT:{{^}} bbb{{$}}
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# NEEDED-LIBS-NEXT:{{^}} ccc{{$}}
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# NEEDED-LIBS-NEXT:{{^}}]{{$}}
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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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Sections:
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- Name: .dynstr
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Type: SHT_STRTAB
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Flags: [ SHF_ALLOC ]
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Content: '00616161006262620063636300' ## 0,a,a,a,0,b,b,b,0,c,c,c,0
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_STRTAB
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Value: 0x0000000000000000
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- Tag: DT_NEEDED
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Value: 0x9999999
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- Tag: DT_NEEDED
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Value: 9
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- Tag: DT_NEEDED
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Value: 1
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- Tag: DT_NEEDED
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Value: 5
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- Tag: DT_NEEDED
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Value: 0x1111111
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- Tag: DT_STRSZ
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Value: [[SIZE=0xD]]
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- Tag: DT_NULL
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Value: 0x0
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ProgramHeaders:
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- Type: PT_LOAD
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VAddr: 0x0
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FirstSec: .dynstr
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LastSec: .dynamic
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## Check what we print when the dynamic string table is empty.
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# RUN: yaml2obj %s --docnum=2 -o %t2
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# RUN: llvm-readobj --needed-libs %t2 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t2 --implicit-check-not=warning: --check-prefix=EMPTY-DYNSTR
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# RUN: llvm-readelf --needed-libs %t2 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t2 --implicit-check-not=warning: --check-prefix=EMPTY-DYNSTR
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# EMPTY-DYNSTR: NeededLibraries [
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# EMPTY-DYNSTR-NEXT: warning: '[[FILE]]': string table at offset 0x78: unable to read the string at 0x79: it goes past the end of the table (0x78)
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# EMPTY-DYNSTR-NEXT: warning: '[[FILE]]': string table at offset 0x78: unable to read the string at 0x7a: it goes past the end of the table (0x78)
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# EMPTY-DYNSTR-NEXT: <?>
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# EMPTY-DYNSTR-NEXT: <?>
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# EMPTY-DYNSTR-NEXT: ]
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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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Sections:
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- Name: .dynstr
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Type: SHT_STRTAB
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Flags: [ SHF_ALLOC ]
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Size: 0
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Address: 0x1000
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Entries:
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- Tag: DT_STRTAB
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Value: 0x0000000000000000
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- Tag: DT_NEEDED
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Value: 1
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- Tag: DT_NEEDED
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Value: 2
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- Tag: DT_STRSZ
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Value: 0x0
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- Tag: DT_NULL
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Value: 0x0
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ProgramHeaders:
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- Type: PT_LOAD
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VAddr: 0x0
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FirstSec: .dynstr
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LastSec: .dynamic
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