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| author | Lang Hames <lhames@gmail.com> | 2019-05-13 20:52:30 +0000 |
|---|---|---|
| committer | Lang Hames <lhames@gmail.com> | 2019-05-13 20:52:30 +0000 |
| commit | 56baade10dcf43855faf577554e1810873793da5 (patch) | |
| tree | c31823e7c3fd703d800f114359564b0b7709107d /llvm/lib/ExecutionEngine | |
| parent | 3cce23746edfc6c24f25b73bd8032582df03222c (diff) | |
| download | bcm5719-llvm-56baade10dcf43855faf577554e1810873793da5.tar.gz bcm5719-llvm-56baade10dcf43855faf577554e1810873793da5.zip | |
[JITLink][MachO] Honor the no-dead-strip flag on nlist entries.
llvm-svn: 360618
Diffstat (limited to 'llvm/lib/ExecutionEngine')
| -rw-r--r-- | llvm/lib/ExecutionEngine/JITLink/MachOAtomGraphBuilder.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/llvm/lib/ExecutionEngine/JITLink/MachOAtomGraphBuilder.cpp b/llvm/lib/ExecutionEngine/JITLink/MachOAtomGraphBuilder.cpp index b24b2256826..062bbda6f2a 100644 --- a/llvm/lib/ExecutionEngine/JITLink/MachOAtomGraphBuilder.cpp +++ b/llvm/lib/ExecutionEngine/JITLink/MachOAtomGraphBuilder.cpp @@ -252,15 +252,22 @@ Error MachOAtomGraphBuilder::addNonCustomAtoms() { DA.setCallable(*SymType & object::SymbolRef::ST_Function); - // Check alt-entry. + // Check NDesc flags. { uint16_t NDesc = 0; if (Obj.is64Bit()) NDesc = Obj.getSymbolTableEntry(SymI->getRawDataRefImpl()).n_desc; else NDesc = Obj.getSymbolTableEntry(SymI->getRawDataRefImpl()).n_desc; + + // Record atom for alt-entry post-processing (where the layout-next + // constraints will be added). if (NDesc & MachO::N_ALT_ENTRY) AltEntryAtoms.push_back(&DA); + + // If this atom has a no-dead-strip attr attached then mark it live. + if (NDesc & MachO::N_NO_DEAD_STRIP) + DA.setLive(true); } LLVM_DEBUG({ |
