From 7353a90b117252a4765c40017666b4c6502e786c Mon Sep 17 00:00:00 2001
From: Juergen Ributzka <juergen@ributzka.de>
Date: Thu, 29 Nov 2018 01:20:46 +0000
Subject: [TextAPI] TBD Reader/Writer

Add basic infrastructure for reading and writting TBD files (version 1 - 3).

The TextAPI library is not used by anything yet (besides the unit tests). Tool
support will be added in a separate commit.

The TBD format is currently documented in the implementation file (TextStub.cpp).

https://reviews.llvm.org/D53945

Update: This contains changes to fix issues discovered by the bots:
 - add parentheses to silence warnings.
 - rename variables
 - use PlatformType from BinaryFormat
llvm-svn: 347823
---
 llvm/lib/TextAPI/MachO/Architecture.cpp | 79 +++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 llvm/lib/TextAPI/MachO/Architecture.cpp

(limited to 'llvm/lib/TextAPI/MachO/Architecture.cpp')

diff --git a/llvm/lib/TextAPI/MachO/Architecture.cpp b/llvm/lib/TextAPI/MachO/Architecture.cpp
new file mode 100644
index 00000000000..2e6884615fe
--- /dev/null
+++ b/llvm/lib/TextAPI/MachO/Architecture.cpp
@@ -0,0 +1,79 @@
+//===- llvm/TextAPI/Architecture.cpp - Architecture -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Implements the architecture helper functions.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/TextAPI/MachO/Architecture.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/BinaryFormat/MachO.h"
+
+namespace llvm {
+namespace MachO {
+
+Architecture getArchitectureFromCpuType(uint32_t CPUType, uint32_t CPUSubType) {
+#define ARCHINFO(Arch, Type, Subtype)                                          \
+  if (CPUType == (Type) &&                                                     \
+      (CPUSubType & ~MachO::CPU_SUBTYPE_MASK) == (Subtype))                    \
+    return Architecture::Arch;
+#include "llvm/TextAPI/MachO/Architecture.def"
+#undef ARCHINFO
+
+  return Architecture::unknown;
+}
+
+Architecture getArchitectureFromName(StringRef Name) {
+  return StringSwitch<Architecture>(Name)
+#define ARCHINFO(Arch, Type, Subtype) .Case(#Arch, Architecture::Arch)
+#include "llvm/TextAPI/MachO/Architecture.def"
+#undef ARCHINFO
+      .Default(Architecture::unknown);
+}
+
+StringRef getArchitectureName(Architecture Arch) {
+  switch (Arch) {
+#define ARCHINFO(Arch, Type, Subtype)                                          \
+  case Architecture::Arch:                                                     \
+    return #Arch;
+#include "llvm/TextAPI/MachO/Architecture.def"
+#undef ARCHINFO
+  case Architecture::unknown:
+    return "unknown";
+  }
+
+  // Appease some compilers that cannot figure out that this is a fully covered
+  // switch statement.
+  return "unknown";
+}
+
+std::pair<uint32_t, uint32_t> getCPUTypeFromArchitecture(Architecture Arch) {
+  switch (Arch) {
+#define ARCHINFO(Arch, Type, Subtype)                                          \
+  case Architecture::Arch:                                                     \
+    return std::make_pair(Type, Subtype);
+#include "llvm/TextAPI/MachO/Architecture.def"
+#undef ARCHINFO
+  case Architecture::unknown:
+    return std::make_pair(0, 0);
+  }
+
+  // Appease some compilers that cannot figure out that this is a fully covered
+  // switch statement.
+  return std::make_pair(0, 0);
+}
+
+raw_ostream &operator<<(raw_ostream &OS, Architecture Arch) {
+  OS << getArchitectureName(Arch);
+  return OS;
+}
+
+} // end namespace MachO.
+} // end namespace llvm.
-- 
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