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#include "llvm/ExecutionEngine/Orc/TargetProcess/ExecutorResolver.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/Error.h"
namespace llvm::orc {
void DylibSymbolResolver::resolveAsync(
const RemoteSymbolLookupSet &L,
ExecutorResolver::YieldResolveResultFn &&OnResolve) {
std::vector<std::optional<ExecutorSymbolDef>> Result;
auto DL = sys::DynamicLibrary(Handle.toPtr<void *>());
for (const auto &E : L) {
if (E.Name.empty()) {
if (E.Required)
OnResolve(
make_error<StringError>("Required address for empty symbol \"\"",
inconvertibleErrorCode()));
else
Result.emplace_back();
} else {
const char *DemangledSymName = E.Name.c_str();
#ifdef __APPLE__
if (E.Name.front() != '_')
OnResolve(make_error<StringError>(Twine("MachO symbol \"") + E.Name +
"\" missing leading '_'",
inconvertibleErrorCode()));
++DemangledSymName;
#endif
void *Addr = DL.getAddressOfSymbol(DemangledSymName);
if (!Addr && E.Required)
Result.emplace_back();
else
// FIXME: determine accurate JITSymbolFlags.
Result.emplace_back(ExecutorSymbolDef(ExecutorAddr::fromPtr(Addr),
JITSymbolFlags::Exported));
}
}
OnResolve(std::move(Result));
}
} // end namespace llvm::orc
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