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llvm-mirror/test/tools/yaml2obj/duplicate-symbol-names.test
George Rimar 5646c326e2 [yaml2obj/obj2yaml] - Allow having the symbols and sections with duplicated names.
The patch teaches yaml2obj/obj2yaml to support parsing/dumping
the sections and symbols with the same name.
A special suffix is added to a name to make it unique.

Differential revision: https://reviews.llvm.org/D63596

llvm-svn: 364282
2019-06-25 08:22:57 +00:00

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## Check that yaml2obj is able to produce an object from YAML
## containing symbols with duplicate names (but different name suffixes).
# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readobj -t %t1 | FileCheck %s --check-prefix=CASE1
# CASE1: Name: localfoo (1)
# CASE1: Name: localfoo (1)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Symbols:
- Name: localfoo
- Name: 'localfoo [1]'
## Check that yaml2obj reports an error when we have
## symbols with equal names and suffixes.
# RUN: not yaml2obj --docnum=2 %s 2>&1| FileCheck %s --check-prefix=CASE2
# CASE2: error: Repeated symbol name: 'localfoo [1]'.
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Symbols:
- Name: 'localfoo [1]'
- Name: 'localfoo [1]'
## Check that yaml2obj reports an error when we have
## symbols without suffixes in the names and their
## names are equal.
# RUN: not yaml2obj --docnum=3 %s 2>&1| FileCheck %s --check-prefix=CASE3
# CASE3: error: Repeated symbol name: 'localfoo'.
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Symbols:
- Name: localfoo
Section: .text.foo.1
- Name: localfoo
Section: .text.foo.2
## Check that yaml2obj can produce correct relocations that
## reference symbols with name suffixes.
# RUN: yaml2obj --docnum=4 %s -o %t4
# RUN: llvm-readobj -r --expand-relocs %t4 | FileCheck %s --check-prefix=CASE4
# CASE4: Relocations [
# CASE4-NEXT: Section {{.*}} .rela.text {
# CASE4-NEXT: Relocation {
# CASE4-NEXT: Offset: 0x0
# CASE4-NEXT: Type: R_X86_64_NONE
# CASE4-NEXT: Symbol: foo (1)
# CASE4-NEXT: Addend: 0x0
# CASE4-NEXT: }
# CASE4-NEXT: Relocation {
# CASE4-NEXT: Offset: 0x1
# CASE4-NEXT: Type: R_X86_64_NONE
# CASE4-NEXT: Symbol: foo (2)
# CASE4-NEXT: Addend: 0x0
# CASE4-NEXT: }
# CASE4-NEXT: }
# CASE4-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
- Name: .rela.text
Type: SHT_RELA
Info: .text
Link: .symtab
Relocations:
- Offset: 0x0
Type: R_X86_64_NONE
Symbol: foo
- Offset: 0x1
Type: R_X86_64_NONE
Symbol: 'foo [1]'
Symbols:
- Name: foo
- Name: 'foo [1]'