forked from OSchip/llvm-project
0dbcb36394
Summary: For builds with LLVM_BUILD_LLVM_DYLIB=ON and BUILD_SHARED_LIBS=OFF this change makes all symbols in the target specific libraries hidden by default. A new macro called LLVM_EXTERNAL_VISIBILITY has been added to mark symbols in these libraries public, which is mainly needed for the definitions of the LLVMInitialize* functions. This patch reduces the number of public symbols in libLLVM.so by about 25%. This should improve load times for the dynamic library and also make abi checker tools, like abidiff require less memory when analyzing libLLVM.so One side-effect of this change is that for builds with LLVM_BUILD_LLVM_DYLIB=ON and LLVM_LINK_LLVM_DYLIB=ON some unittests that access symbols that are no longer public will need to be statically linked. Before and after public symbol counts (using gcc 8.2.1, ld.bfd 2.31.1): nm before/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 36221 nm after/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 26278 Reviewers: chandlerc, beanz, mgorny, rnk, hans Reviewed By: rnk, hans Subscribers: merge_guards_bot, luismarques, smeenai, ldionne, lenary, s.egerton, pzheng, sameer.abuasal, MaskRay, wuzish, echristo, Jim, hiraditya, michaelplatings, chapuni, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, mgrang, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, kristina, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D54439 |
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| .. | ||
| AsmParser | ||
| Disassembler | ||
| MCTargetDesc | ||
| TargetInfo | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||
| MSA.txt | ||
| MicroMips32r6InstrFormats.td | ||
| MicroMips32r6InstrInfo.td | ||
| MicroMipsDSPInstrFormats.td | ||
| MicroMipsDSPInstrInfo.td | ||
| MicroMipsInstrFPU.td | ||
| MicroMipsInstrFormats.td | ||
| MicroMipsInstrInfo.td | ||
| MicroMipsSizeReduction.cpp | ||
| Mips.h | ||
| Mips.td | ||
| Mips16FrameLowering.cpp | ||
| Mips16FrameLowering.h | ||
| Mips16HardFloat.cpp | ||
| Mips16HardFloatInfo.cpp | ||
| Mips16HardFloatInfo.h | ||
| Mips16ISelDAGToDAG.cpp | ||
| Mips16ISelDAGToDAG.h | ||
| Mips16ISelLowering.cpp | ||
| Mips16ISelLowering.h | ||
| Mips16InstrFormats.td | ||
| Mips16InstrInfo.cpp | ||
| Mips16InstrInfo.h | ||
| Mips16InstrInfo.td | ||
| Mips16RegisterInfo.cpp | ||
| Mips16RegisterInfo.h | ||
| Mips32r6InstrFormats.td | ||
| Mips32r6InstrInfo.td | ||
| Mips64InstrInfo.td | ||
| Mips64r6InstrInfo.td | ||
| MipsAnalyzeImmediate.cpp | ||
| MipsAnalyzeImmediate.h | ||
| MipsAsmPrinter.cpp | ||
| MipsAsmPrinter.h | ||
| MipsBranchExpansion.cpp | ||
| MipsCCState.cpp | ||
| MipsCCState.h | ||
| MipsCallLowering.cpp | ||
| MipsCallLowering.h | ||
| MipsCallingConv.td | ||
| MipsCondMov.td | ||
| MipsConstantIslandPass.cpp | ||
| MipsDSPInstrFormats.td | ||
| MipsDSPInstrInfo.td | ||
| MipsDelaySlotFiller.cpp | ||
| MipsEVAInstrFormats.td | ||
| MipsEVAInstrInfo.td | ||
| MipsExpandPseudo.cpp | ||
| MipsFastISel.cpp | ||
| MipsFrameLowering.cpp | ||
| MipsFrameLowering.h | ||
| MipsISelDAGToDAG.cpp | ||
| MipsISelDAGToDAG.h | ||
| MipsISelLowering.cpp | ||
| MipsISelLowering.h | ||
| MipsInstrFPU.td | ||
| MipsInstrFormats.td | ||
| MipsInstrInfo.cpp | ||
| MipsInstrInfo.h | ||
| MipsInstrInfo.td | ||
| MipsInstructionSelector.cpp | ||
| MipsLegalizerInfo.cpp | ||
| MipsLegalizerInfo.h | ||
| MipsMCInstLower.cpp | ||
| MipsMCInstLower.h | ||
| MipsMSAInstrFormats.td | ||
| MipsMSAInstrInfo.td | ||
| MipsMTInstrFormats.td | ||
| MipsMTInstrInfo.td | ||
| MipsMachineFunction.cpp | ||
| MipsMachineFunction.h | ||
| MipsModuleISelDAGToDAG.cpp | ||
| MipsOptimizePICCall.cpp | ||
| MipsOptionRecord.h | ||
| MipsOs16.cpp | ||
| MipsPfmCounters.td | ||
| MipsPreLegalizerCombiner.cpp | ||
| MipsRegisterBankInfo.cpp | ||
| MipsRegisterBankInfo.h | ||
| MipsRegisterBanks.td | ||
| MipsRegisterInfo.cpp | ||
| MipsRegisterInfo.h | ||
| MipsRegisterInfo.td | ||
| MipsSEFrameLowering.cpp | ||
| MipsSEFrameLowering.h | ||
| MipsSEISelDAGToDAG.cpp | ||
| MipsSEISelDAGToDAG.h | ||
| MipsSEISelLowering.cpp | ||
| MipsSEISelLowering.h | ||
| MipsSEInstrInfo.cpp | ||
| MipsSEInstrInfo.h | ||
| MipsSERegisterInfo.cpp | ||
| MipsSERegisterInfo.h | ||
| MipsSchedule.td | ||
| MipsScheduleGeneric.td | ||
| MipsScheduleP5600.td | ||
| MipsSubtarget.cpp | ||
| MipsSubtarget.h | ||
| MipsTargetMachine.cpp | ||
| MipsTargetMachine.h | ||
| MipsTargetObjectFile.cpp | ||
| MipsTargetObjectFile.h | ||
| MipsTargetStreamer.h | ||
| Relocation.txt | ||