Adhemerval Zanella c728e851dc Support arm32 R_ARM_V4BX relocation format
ARM32 ELF R_ARM_V4BX relocation format is a special relocation type
that records the location of an ARMv4t BX instruction to enable a
static linker to generate ARMv4 compatible instructions.  This
relocation does not contain a reference symbol.

This patch enabled its creation by removing the requeriment of a
relocation symbol target in ELFState<ELFT>::writeSectionContent.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235513 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-22 15:26:43 +00:00
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