From 9f3dbff08a30f3289558e6f8ba95b412824e5120 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 22 Apr 2015 15:26:43 +0000 Subject: 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::writeSectionContent. llvm-svn: 235513 --- llvm/tools/yaml2obj/yaml2elf.cpp | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'llvm/tools') diff --git a/llvm/tools/yaml2obj/yaml2elf.cpp b/llvm/tools/yaml2obj/yaml2elf.cpp index 5d4c26379be..17dbe8b03da 100644 --- a/llvm/tools/yaml2obj/yaml2elf.cpp +++ b/llvm/tools/yaml2obj/yaml2elf.cpp @@ -357,12 +357,11 @@ ELFState::writeSectionContent(Elf_Shdr &SHeader, auto &OS = CBA.getOSAndAlignedOffset(SHeader.sh_offset); for (const auto &Rel : Section.Relocations) { - unsigned SymIdx; - if (SymN2I.lookup(Rel.Symbol, SymIdx)) { - errs() << "error: Unknown symbol referenced: '" << Rel.Symbol - << "' at YAML relocation.\n"; - return false; - } + unsigned SymIdx = 0; + // Some special relocation, R_ARM_v4BX for instance, does not have + // an external reference. So it ignores the return value of lookup() + // here. + SymN2I.lookup(Rel.Symbol, SymIdx); if (IsRela) { Elf_Rela REntry; -- cgit v1.2.3