e115c00565
Unknown section sections may require special linking rules, and rejecting such sections for older linkers may be desired. For example, if we introduce a new section type to replace a control structure (e.g. relocations), it would be nice for older linkers to reject the new section type. GNU ld allows certain unknown section types: * [SHT_LOUSER,SHT_HIUSER] and non-SHF_ALLOC * [SHT_LOOS,SHT_HIOS] and non-SHF_OS_NONCONFORMING but reports errors and stops linking for others (unless --no-warn-mismatch is specified). Port its behavior. For convenience, we additionally allow all [SHT_LOPROC,SHT_HIPROC] types so that we don't have to hard code all known types for each processor. Close https://github.com/llvm/llvm-project/issues/84812
49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
# RUN: rm -rf %t && mkdir %t && cd %t
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# RUN: yaml2obj %s -o a.o
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# RUN: not ld.lld a.o -o /dev/null 2>&1 | FileCheck %s --implicit-check-not=error:
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# CHECK: error: a.o:(relr): unknown section type 0x13
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# CHECK-NEXT: error: a.o:(regular): unknown section type 0x15
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# CHECK-NEXT: error: a.o:(loos_nonconforming): unknown section type 0x60000000
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# CHECK-NEXT: error: a.o:(hios_nonconforming): unknown section type 0x6fffffff
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# CHECK-NEXT: error: a.o:(louser_alloc): unknown section type 0x80000000
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# CHECK-NEXT: error: a.o:(hiuser_alloc): unknown section type 0xffffffff
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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_REL
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Machine: EM_X86_64
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Sections:
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- Name: relr
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Type: 19
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- Name: regular
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Type: 21
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- Name: loos
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Type: 0x60000000
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- Name: hios
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Type: 0x6fffffff
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- Name: loos_nonconforming
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Type: 0x60000000
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Flags: [ SHF_OS_NONCONFORMING ]
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- Name: hios_nonconforming
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Type: 0x6fffffff
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Flags: [ SHF_OS_NONCONFORMING ]
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- Name: loproc
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Type: 0x70000000
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- Name: hiproc
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Type: 0x7fffffff
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- Name: louser
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Type: 0x80000000
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- Name: hiuser
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Type: 0xffffffff
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- Name: louser_alloc
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Type: 0x80000000
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Flags: [ SHF_ALLOC ]
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- Name: hiuser_alloc
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Type: 0xffffffff
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Flags: [ SHF_ALLOC ]
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