[PATCH] D42024: [WebAssembly] Create synthetic __dso_handle symbol
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Tue Jan 16 17:11:50 PST 2018
This revision was automatically updated to reflect the committed changes.
Closed by commit rL322606: [WebAssembly] Create synthetic __dso_handle symbol (authored by sbc, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D42024?vs=129743&id=130072#toc
Repository:
rL LLVM
https://reviews.llvm.org/D42024
Files:
lld/trunk/wasm/Driver.cpp
Index: lld/trunk/wasm/Driver.cpp
===================================================================
--- lld/trunk/wasm/Driver.cpp
+++ lld/trunk/wasm/Driver.cpp
@@ -299,9 +299,18 @@
for (auto* Arg : Args.filtered(OPT_undefined))
addSyntheticUndefinedFunction(Arg->getValue(), nullptr);
+ // Create linker-synthetic symbols
+ // __wasm_call_ctors:
+ // Function that directly calls all ctors in priority order.
+ // __stack_pointer:
+ // Wasm global that holds the address of the top of the explict
+ // value stack in linear memory.
+ // __dso_handle;
+ // Global in calls to __cxa_atexit to determine current DLL
Config->CtorSymbol = Symtab->addDefinedFunction(
"__wasm_call_ctors", &Signature, WASM_SYMBOL_VISIBILITY_HIDDEN);
Config->StackPointerSymbol = Symtab->addDefinedGlobal("__stack_pointer");
+ Symtab->addDefinedGlobal("__dso_handle")->setVirtualAddress(0);
}
createFiles(Args);
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