llvm-project/lld/test/ELF/protected-data-access.s
Fangrui Song 88796a7988 [ELF][test] Improve and reorganize another set of tests
Add file-level comments
Replace trivial Input/*.s with echo ... | llvm-mc
Delete insignificant addresses to make them more tolerant to layout changes
Simplify test output

Merge merge-section-types.s into compatible-section-types.s and add a missed case
Merge gnu-ifunc-gotpcrel.s (added in D19517) into gnu-ifunc-dso.s (added in D35119) and add missed cases
Delete typed-undef.s - covered by executable-undefined-ignoreall.s
Delete emit-relocs-shared.s - covered by emit-relocs-merge.s

Replace copy-rel-pie.s and copy-rel-pie2.s with canonical-plt-pcrel.s, canonical-plt-symbolic.s and copy-rel.s:
add -no-pie cases.
add a case that a canonical PLT can be created for STT_GNU_IFUNC. The logic in Symbols.h was untested:

  // ctor of SharedSymbol
  if (this->type == llvm::ELF::STT_GNU_IFUNC)
    this->type = llvm::ELF::STT_FUNC;

llvm-svn: 371361
2019-09-09 03:35:14 +00:00

31 lines
852 B
ArmAsm

# REQUIRES: x86
## Disallow copy relocation if the symbol is defined as protected in a DSO.
# RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %p/Inputs/protected-data-access.s -o %t2.o
# RUN: ld.lld %t2.o -o %t2.so -shared
# RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %s -o %t.o
# RUN: not ld.lld %t.o %t2.so -o %t 2>&1 | FileCheck --check-prefix=ERR %s
# ERR: error: cannot preempt symbol: foo
## Allow that if --ignore-data-address-equality is specified.
# RUN: ld.lld --ignore-data-address-equality %t.o %t2.so -o %t
# RUN: llvm-readobj --dyn-symbols --relocations %t | FileCheck %s
# CHECK: R_X86_64_COPY foo 0x0
# CHECK: Name: foo
# CHECK-NEXT: Value:
# CHECK-NEXT: Size: 8
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: Object
# CHECK-NEXT: Other:
# CHECK-NEXT: Section: .bss.rel.ro
.global _start
_start:
.quad foo