[PATCH] D27711: ELF/AArch64: Fix dynamic relocation against local symbol in shared objects

[Adhemerval Zanella via Phabricator via llvm-commits]

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ELF/AArch64: Fix dynamic relocation against local symbol in
 shared objects

-

static __thread int32_t x1;
static __thread int64_t x2;

int32_t foo1 (int32_t x)
{

  x1 += x;
  return x;

}

int64_t foo2 (int64_t x)
{

  x2 += x;
  return x;

}

-

The dynamic relocation should be create as:

Relocations [

  Section (N) .rela.dyn {
    <Address1> R_AARCH64_TLSDESC - 0x0
    <Address2> R_AARCH64_TLSDESC - 0x8
  }

]

Where 0x0 addend in first dynamic relocation is the address of 'x1'
in TLS block and '0x8' is the address of 'x2'.

Checked against test-suite on aarch64-linux-gnu.


Repository:
  rL LLVM

https://reviews.llvm.org/D27711

Files:
  ELF/Relocations.cpp
  ELF/Target.cpp
  ELF/Target.h
  test/ELF/aarch64-tlsdesc.s

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