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81 lines
2.6 KiB
81 lines
2.6 KiB
4 months ago
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## Check how we produce SHT_DYNSYM sections.
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## Check we do not crash/assert when .dynsym is specified
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## explicitly, but .dynstr is not present.
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## Check we set the sh_link field to 0 for the .dynsym section in this case.
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# RUN: yaml2obj %s -o %t1
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# RUN: llvm-readelf --section-headers %t1 | FileCheck %s
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# CHECK: Section Headers:
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# CHECK-NEXT: [Nr] Name Type Address Off Size ES Flg Lk
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# CHECK-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0
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# CHECK-NEXT: [ 1] .dynsym DYNSYM 0000000000000000 000040 000018 18 A 0
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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_DYN
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Offset: [[OFFSET=<none>]]
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## Check we can use the "Offset" key to to set an arbitrary offset for the SHT_DYNSYM section.
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# RUN: yaml2obj %s -DOFFSET=0x100 -o %t2
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# RUN: llvm-readelf --section-headers %t2 | FileCheck %s --check-prefix=OFFSET
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# OFFSET: Section Headers:
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# OFFSET-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# OFFSET-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# OFFSET-NEXT: [ 1] .dynsym DYNSYM 0000000000000000 000100 000018 18 A 0 1 0
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## Check we are able to set Link = 0 for the .dynsym section explicitly.
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# RUN: yaml2obj %s --docnum=2 -DLINK=0 -o %t2
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# RUN: llvm-readelf --section-headers %t2 | FileCheck %s --check-prefix=LINK-NULL
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# LINK-NULL: [Nr] Name {{.*}} Flg Lk Inf
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# LINK-NULL: [ 1] .dynsym {{.*}} A 0 1
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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_DYN
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Link: [[LINK=<none>]]
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- Name: .dynstr
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Type: SHT_STRTAB
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- Name: .foo
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Type: SHT_PROGBITS
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## Check that by default the .dynsym section will be linked to the .dynstr section,
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## when the latter one exists.
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# RUN: yaml2obj %s --docnum=2 -o %t3
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# RUN: llvm-readelf --section-headers %t3 | FileCheck %s --check-prefix=LINK-DEFAULT
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# LINK-DEFAULT: [Nr] Name {{.*}} Flg Lk Inf
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# LINK-DEFAULT: [ 1] .dynsym {{.*}} A 2 1
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# LINK-DEFAULT: [ 2] .dynstr {{.*}} A 0 0
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## Even when the .dynstr section exists, we can explicitly link the .dynsym section
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## to another section.
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# RUN: yaml2obj %s --docnum=2 -DLINK=3 -o %t4
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# RUN: llvm-readelf --section-headers %t4 | FileCheck %s --check-prefix=LINK-FOO
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# LINK-FOO: [Nr] Name {{.*}} Flg Lk Inf
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# LINK-FOO: [ 1] .dynsym {{.*}} A 3 1
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# LINK-FOO: [ 3] .foo
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## Check we can use a section name as a Link value for .dynsym.
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# RUN: yaml2obj %s --docnum=2 -DLINK=.foo -o %t5
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# RUN: llvm-readelf --section-headers %t5 | FileCheck %s --check-prefix=LINK-FOO
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