llvm/lib/ExecutionEngine/Orc/EPCGenericMemoryAccess.cpp

   1 //===----- EPCGenericMemoryAccess.cpp - Generic EPC MemoryAccess impl -----===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/ExecutionEngine/Orc/EPCGenericMemoryAccess.h"
  10 #include "llvm/ExecutionEngine/Orc/LookupAndRecordAddrs.h"
  11
  12 namespace llvm {
  13 namespace orc {
  14
  15 /// Create from a ExecutorProcessControl instance.
  16 Expected<std::unique_ptr<EPCGenericMemoryAccess>>
  17 EPCGenericMemoryAccess::CreateUsingOrcRTFuncs(ExecutionSession &ES,
  18                                               JITDylib &OrcRuntimeJD) {
  19
  20   StringRef GlobalPrefix = "";
  21   if (ES.getExecutorProcessControl().getTargetTriple().isOSBinFormatMachO())
  22     GlobalPrefix = "_";
  23
  24   FuncAddrs FAs;
  25   if (auto Err = lookupAndRecordAddrs(
  26           ES, LookupKind::Static, makeJITDylibSearchOrder(&OrcRuntimeJD),
  27           {{ES.intern((GlobalPrefix + "__orc_rt_write_uint8s_wrapper").str()),
  28             &FAs.WriteUInt8s},
  29            {ES.intern((GlobalPrefix + "__orc_rt_write_uint16s_wrapper").str()),
  30             &FAs.WriteUInt16s},
  31            {ES.intern((GlobalPrefix + "__orc_rt_write_uint32s_wrapper").str()),
  32             &FAs.WriteUInt32s},
  33            {ES.intern((GlobalPrefix + "__orc_rt_write_uint64s_wrapper").str()),
  34             &FAs.WriteUInt64s},
  35            {ES.intern((GlobalPrefix + "__orc_rt_write_buffers_wrapper").str()),
  36             &FAs.WriteBuffers}}))
  37     return std::move(Err);
  38
  39   return std::make_unique<EPCGenericMemoryAccess>(
  40       ES.getExecutorProcessControl(), FAs);
  41 }
  42
  43 } // end namespace orc
  44 } // end namespace llvm