dwarfdump: Added macro support to llvm-dwarfdump tool.

[oota-llvm.git] / lib / Support / Process.cpp

diff --git a/lib/Support/Process.cpp b/lib/Support/Process.cpp
index 5f8655efc6e8d7c4cd10e0d06877ba78e363c6f9..6dcbb47e87d0a9fbfa4f8dc0f3e2e8ca5d65762c 100644 (file)
--- a/lib/Support/Process.cpp
+++ b/lib/Support/Process.cpp
@@ -7,15 +7,18 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements the operating system Process concept.
+//  This file implements the operating system Process concept.
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Config/config.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Support/Process.h"
-#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/Program.h"
 
-namespace llvm {
+using namespace llvm;
 using namespace sys;
 
 //===----------------------------------------------------------------------===//
@@ -23,39 +26,52 @@ using namespace sys;
 //===          independent code.
 //===----------------------------------------------------------------------===//
 
-// Empty virtual destructor to anchor the vtable for the process class.
-process::~process() {}
+Optional<std::string> Process::FindInEnvPath(const std::string& EnvName,
+                                             const std::string& FileName)
+{
+  assert(!path::is_absolute(FileName));
+  Optional<std::string> FoundPath;
+  Optional<std::string> OptPath = Process::GetEnv(EnvName);
+  if (!OptPath.hasValue())
+    return FoundPath;
 
-self_process *process::get_self() {
-  // Use a function local static for thread safe initialization and allocate it
-  // as a raw pointer to ensure it is never destroyed.
-  static self_process *SP = new self_process();
+  const char EnvPathSeparatorStr[] = {EnvPathSeparator, '\0'};
+  SmallVector<StringRef, 8> Dirs;
+  SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr);
 
-  return SP;
-}
+  for (const auto &Dir : Dirs) {
+    if (Dir.empty())
+      continue;
 
-#if defined(_MSC_VER)
-// Visual Studio complains that the self_process destructor never exits. This
-// doesn't make much sense, as that's the whole point of calling abort... Just
-// silence this warning.
-#pragma warning(push)
-#pragma warning(disable:4722)
-#endif
+    SmallString<128> FilePath(Dir);
+    path::append(FilePath, FileName);
+    if (fs::exists(Twine(FilePath))) {
+      FoundPath = FilePath.str();
+      break;
+    }
+  }
 
-// The destructor for the self_process subclass must never actually be
-// executed. There should be at most one instance of this class, and that
-// instance should live until the process terminates to avoid the potential for
-// racy accesses during shutdown.
-self_process::~self_process() {
-    assert(TempDirectory->exists() && "Who has removed TempDirectory?");
-  llvm_unreachable("This destructor must never be executed!");
+  return FoundPath;
 }
 
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
 
-}
+#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
+
+#define ALLCOLORS(FGBG,BOLD) {\
+    COLOR(FGBG, "0", BOLD),\
+    COLOR(FGBG, "1", BOLD),\
+    COLOR(FGBG, "2", BOLD),\
+    COLOR(FGBG, "3", BOLD),\
+    COLOR(FGBG, "4", BOLD),\
+    COLOR(FGBG, "5", BOLD),\
+    COLOR(FGBG, "6", BOLD),\
+    COLOR(FGBG, "7", BOLD)\
+  }
+
+static const char colorcodes[2][2][8][10] = {
+ { ALLCOLORS("3",""), ALLCOLORS("3","1;") },
+ { ALLCOLORS("4",""), ALLCOLORS("4","1;") }
+};
 
 // Include the platform-specific parts of this class.
 #ifdef LLVM_ON_UNIX