1 files changed, 94 insertions, 0 deletions

diff --git a/contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/Shared/ObjectFormats.cpp b/contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/Shared/ObjectFormats.cpp
new file mode 100644
index 000000000000..ecf5e2915773
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/Shared/ObjectFormats.cpp
@@ -0,0 +1,94 @@
+//===---------- ObjectFormats.cpp - Object format details for ORC ---------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// ORC-specific object format details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ExecutionEngine/Orc/Shared/ObjectFormats.h"
+
+namespace llvm {
+namespace orc {
+
+StringRef MachODataCommonSectionName = "__DATA,__common";
+StringRef MachODataDataSectionName = "__DATA,__data";
+StringRef MachOEHFrameSectionName = "__TEXT,__eh_frame";
+StringRef MachOCompactUnwindInfoSectionName = "__TEXT,__unwind_info";
+StringRef MachOModInitFuncSectionName = "__DATA,__mod_init_func";
+StringRef MachOObjCCatListSectionName = "__DATA,__objc_catlist";
+StringRef MachOObjCCatList2SectionName = "__DATA,__objc_catlist2";
+StringRef MachOObjCClassListSectionName = "__DATA,__objc_classlist";
+StringRef MachOObjCClassNameSectionName = "__TEXT,__objc_classname";
+StringRef MachOObjCClassRefsSectionName = "__DATA,__objc_classrefs";
+StringRef MachOObjCConstSectionName = "__DATA,__objc_const";
+StringRef MachOObjCDataSectionName = "__DATA,__objc_data";
+StringRef MachOObjCImageInfoSectionName = "__DATA,__objc_imageinfo";
+StringRef MachOObjCMethNameSectionName = "__TEXT,__objc_methname";
+StringRef MachOObjCMethTypeSectionName = "__TEXT,__objc_methtype";
+StringRef MachOObjCNLCatListSectionName = "__DATA,__objc_nlcatlist";
+StringRef MachOObjCSelRefsSectionName = "__DATA,__objc_selrefs";
+StringRef MachOSwift5ProtoSectionName = "__TEXT,__swift5_proto";
+StringRef MachOSwift5ProtosSectionName = "__TEXT,__swift5_protos";
+StringRef MachOSwift5TypesSectionName = "__TEXT,__swift5_types";
+StringRef MachOSwift5TypeRefSectionName = "__TEXT,__swift5_typeref";
+StringRef MachOSwift5FieldMetadataSectionName = "__TEXT,__swift5_fieldmd";
+StringRef MachOSwift5EntrySectionName = "__TEXT,__swift5_entry";
+StringRef MachOThreadBSSSectionName = "__DATA,__thread_bss";
+StringRef MachOThreadDataSectionName = "__DATA,__thread_data";
+StringRef MachOThreadVarsSectionName = "__DATA,__thread_vars";
+
+StringRef MachOInitSectionNames[19] = {
+    MachOModInitFuncSectionName,   MachOObjCCatListSectionName,
+    MachOObjCCatList2SectionName,  MachOObjCClassListSectionName,
+    MachOObjCClassNameSectionName, MachOObjCClassRefsSectionName,
+    MachOObjCConstSectionName,     MachOObjCDataSectionName,
+    MachOObjCImageInfoSectionName, MachOObjCMethNameSectionName,
+    MachOObjCMethTypeSectionName,  MachOObjCNLCatListSectionName,
+    MachOObjCSelRefsSectionName,   MachOSwift5ProtoSectionName,
+    MachOSwift5ProtosSectionName,  MachOSwift5TypesSectionName,
+    MachOSwift5TypeRefSectionName, MachOSwift5FieldMetadataSectionName,
+    MachOSwift5EntrySectionName,
+};
+
+StringRef ELFEHFrameSectionName = ".eh_frame";
+StringRef ELFInitArrayFuncSectionName = ".init_array";
+
+StringRef ELFThreadBSSSectionName = ".tbss";
+StringRef ELFThreadDataSectionName = ".tdata";
+
+bool isMachOInitializerSection(StringRef SegName, StringRef SecName) {
+  for (auto &InitSection : MachOInitSectionNames) {
+    // Loop below assumes all MachO init sectios have a length-6
+    // segment name.
+    assert(InitSection[6] == ',' && "Init section seg name has length != 6");
+    if (InitSection.starts_with(SegName) && InitSection.substr(7) == SecName)
+      return true;
+  }
+  return false;
+}
+
+bool isMachOInitializerSection(StringRef QualifiedName) {
+  for (auto &InitSection : MachOInitSectionNames)
+    if (InitSection == QualifiedName)
+      return true;
+  return false;
+}
+
+bool isELFInitializerSection(StringRef SecName) {
+  if (SecName.consume_front(ELFInitArrayFuncSectionName) &&
+      (SecName.empty() || SecName[0] == '.'))
+    return true;
+  return false;
+}
+
+bool isCOFFInitializerSection(StringRef SecName) {
+  return SecName.startswith(".CRT");
+}
+
+} // namespace orc
+} // namespace llvm