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author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-05-02 15:49:52 +0000 |
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committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-05-02 15:49:52 +0000 |
commit | e17e6c01c8d64b1081661ff7fbf0355bab75754c (patch) | |
tree | 059c1cdb5272a0964b37bada8454b56193606e47 /lib/CodeGen/AsmPrinter/DwarfCFIException.cpp | |
parent | b2d7336fde9bc545dbcf5f47d4d1140f28a8918e (diff) | |
download | external_llvm-e17e6c01c8d64b1081661ff7fbf0355bab75754c.zip external_llvm-e17e6c01c8d64b1081661ff7fbf0355bab75754c.tar.gz external_llvm-e17e6c01c8d64b1081661ff7fbf0355bab75754c.tar.bz2 |
Only produce the eh_frame section if we have at least one personality function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130692 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfCFIException.cpp')
-rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfCFIException.cpp | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp b/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp index 49680ad..dbd52c4 100644 --- a/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp @@ -54,25 +54,27 @@ void DwarfCFIException::EndModule() { const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering(); - if (!TLOF.isFunctionEHFrameSymbolPrivate()) { - // This is a temporary hack to keep sections in the same order they - // were before. This lets us produce bit identical outputs while - // transitioning to CFI. - Asm->OutStreamer.SwitchSection(TLOF.getEHFrameSection()); - } - unsigned PerEncoding = TLOF.getPersonalityEncoding(); if ((PerEncoding & 0x70) != dwarf::DW_EH_PE_pcrel) return; // Emit references to all used personality functions + bool AtLeastOne = false; const std::vector<const Function*> &Personalities = MMI->getPersonalities(); for (size_t i = 0, e = Personalities.size(); i != e; ++i) { if (!Personalities[i]) continue; MCSymbol *Sym = Asm->Mang->getSymbol(Personalities[i]); TLOF.emitPersonalityValue(Asm->OutStreamer, Asm->TM, Sym); + AtLeastOne = true; + } + + if (AtLeastOne && !TLOF.isFunctionEHFrameSymbolPrivate()) { + // This is a temporary hack to keep sections in the same order they + // were before. This lets us produce bit identical outputs while + // transitioning to CFI. + Asm->OutStreamer.SwitchSection(TLOF.getEHFrameSection()); } } |