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c6ec5ad6dc
This fixes https://bugs.llvm.org/show_bug.cgi?id=40337. Previously, it was always assumed that relocations referenced symbols in the static symbol table. Now, if the Link field references a section called ".dynsym" it will look up these symbols in the dynamic symbol table. This patch is heavily based on D59097 by James Henderson Differential revision: https://reviews.llvm.org/D66532 llvm-svn: 369645
66 lines
1.8 KiB
YAML
66 lines
1.8 KiB
YAML
## Show that yaml2obj uses the correct set of symbols for relocation sections
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## referencing the dynamic symbol table.
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# RUN: yaml2obj %s -o %t
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# RUN: llvm-readelf -r %t | FileCheck %s
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# CHECK: Relocation section '.rela.dyn' at offset {{.*}} contains 2 entries:
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# CHECK-NEXT: Offset Info Type Symbol's Value Symbol's Name
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# CHECK-NEXT: 0000000000000000 0000000100000000 R_X86_64_NONE 0000000012345678 dynamic
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# CHECK-NEXT: 0000000000000008 0000000200000000 R_X86_64_NONE 0000000087654321 both
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# CHECK-EMPTY:
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# CHECK-NEXT: Relocation section '.rela.data' at offset {{.*}} contains 2 entries:
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# CHECK-NEXT: Offset Info Type Symbol's Value Symbol's Name
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# CHECK-NEXT: 0000000000000010 0000000200000000 R_X86_64_NONE 0000000011223344 static
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# CHECK-NEXT: 0000000000000018 0000000100000000 R_X86_64_NONE 0000000088776655 both
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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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Machine: EM_X86_64
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Sections:
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- Name: .data
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Type: SHT_PROGBITS
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- Name: .rela.dyn
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Type: SHT_REL
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Link: .dynsym
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Info: .data
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Relocations:
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- Offset: 0
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Type: R_X86_64_NONE
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Symbol: dynamic
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- Offset: 8
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Type: R_X86_64_NONE
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Symbol: both
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- Name: .rela.data
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Type: SHT_REL
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Link: .symtab
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Info: .data
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Relocations:
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- Offset: 16
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Type: R_X86_64_NONE
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Symbol: static
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- Offset: 24
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Type: R_X86_64_NONE
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Symbol: both
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Symbols:
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- Name: both
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Section: .data
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Value: 0x88776655
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Binding: STB_GLOBAL
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- Name: static
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Section: .data
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Value: 0x11223344
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Binding: STB_GLOBAL
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DynamicSymbols:
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- Name: dynamic
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Section: .data
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Value: 0x12345678
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Binding: STB_GLOBAL
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- Name: both
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Section: .data
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Value: 0x87654321
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Binding: STB_GLOBAL
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