[X86][Haswell][SchedModel] Add architecture specific scheduling models.

[oota-llvm.git] / lib / Support / Unix / Process.inc

diff --git a/lib/Support/Unix/Process.inc b/lib/Support/Unix/Process.inc
index 8bc8d91eb54406713c0c8a98353450750177813b..d2c5dbcf6ebbaa76799e52ccaae2adf15e2b06cd 100644 (file)
--- a/lib/Support/Unix/Process.inc
+++ b/lib/Support/Unix/Process.inc
@@ -13,6 +13,7 @@
 
 #include "Unix.h"
 #include "llvm/ADT/Hashing.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Mutex.h"
 #include "llvm/Support/MutexGuard.h"
 #include "llvm/Support/TimeValue.h"
@@ -46,7 +47,6 @@
 using namespace llvm;
 using namespace sys;
 
-
 process::id_type self_process::get_id() {
   return getpid();
 }
@@ -88,13 +88,10 @@ TimeValue self_process::get_system_time() const {
   return getRUsageTimes().second;
 }
 
+// On Cygwin, getpagesize() returns 64k(AllocationGranularity) and
+// offset in mmap(3) should be aligned to the AllocationGranularity.
 static unsigned getPageSize() {
-#if defined(__CYGWIN__)
-  // On Cygwin, getpagesize() returns 64k but the page size for the purposes of
-  // memory protection and mmap() is 4k.
-  // See http://www.cygwin.com/ml/cygwin/2009-01/threads.html#00492
-  const int page_size = 0x1000;
-#elif defined(HAVE_GETPAGESIZE)
+#if defined(HAVE_GETPAGESIZE)
   const int page_size = ::getpagesize();
 #elif defined(HAVE_SYSCONF)
   long page_size = ::sysconf(_SC_PAGE_SIZE);
@@ -137,7 +134,7 @@ size_t Process::GetMallocUsage() {
 void Process::GetTimeUsage(TimeValue &elapsed, TimeValue &user_time,
                            TimeValue &sys_time) {
   elapsed = TimeValue::now();
-  llvm::tie(user_time, sys_time) = getRUsageTimes();
+  std::tie(user_time, sys_time) = getRUsageTimes();
 }
 
 #if defined(HAVE_MACH_MACH_H) && !defined(__GNU__)
@@ -184,6 +181,23 @@ void Process::PreventCoreFiles() {
 #endif
 }
 
+Optional<std::string> Process::GetEnv(StringRef Name) {
+  std::string NameStr = Name.str();
+  const char *Val = ::getenv(NameStr.c_str());
+  if (!Val)
+    return None;
+  return std::string(Val);
+}
+
+std::error_code
+Process::GetArgumentVector(SmallVectorImpl<const char *> &ArgsOut,
+                           ArrayRef<const char *> ArgsIn,
+                           SpecificBumpPtrAllocator<char> &) {
+  ArgsOut.append(ArgsIn.begin(), ArgsIn.end());
+
+  return std::error_code();
+}
+
 bool Process::StandardInIsUserInput() {
   return FileDescriptorIsDisplayed(STDIN_FILENO);
 }
@@ -256,7 +270,7 @@ static bool terminalHasColors(int fd) {
   MutexGuard G(M);
 
   int errret = 0;
-  if (setupterm((char *)0, fd, &errret) != 0)
+  if (setupterm((char *)nullptr, fd, &errret) != 0)
     // Regardless of why, if we can't get terminfo, we shouldn't try to print
     // colors.
     return false;
@@ -278,7 +292,7 @@ static bool terminalHasColors(int fd) {
 
   // Now extract the structure allocated by setupterm and free its memory
   // through a really silly dance.
-  struct term *termp = set_curterm((struct term *)0);
+  struct term *termp = set_curterm((struct term *)nullptr);
   (void)del_curterm(termp); // Drop any errors here.
 
   // Return true if we found a color capabilities for the current terminal.
@@ -304,29 +318,15 @@ bool Process::StandardErrHasColors() {
   return FileDescriptorHasColors(STDERR_FILENO);
 }
 
+void Process::UseANSIEscapeCodes(bool /*enable*/) {
+  // No effect.
+}
+
 bool Process::ColorNeedsFlush() {
   // No, we use ANSI escape sequences.
   return false;
 }
 
-#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;") }
-};
-
 const char *Process::OutputColor(char code, bool bold, bool bg) {
   return colorcodes[bg?1:0][bold?1:0][code&7];
 }
@@ -343,7 +343,7 @@ const char *Process::ResetColor() {
   return "\033[0m";
 }
 
-#if !defined(HAVE_ARC4RANDOM)
+#if !defined(HAVE_DECL_ARC4RANDOM) || !HAVE_DECL_ARC4RANDOM
 static unsigned GetRandomNumberSeed() {
   // Attempt to get the initial seed from /dev/urandom, if possible.
   if (FILE *RandomSource = ::fopen("/dev/urandom", "r")) {
@@ -364,7 +364,7 @@ static unsigned GetRandomNumberSeed() {
 #endif
 
 unsigned llvm::sys::Process::GetRandomNumber() {
-#if defined(HAVE_ARC4RANDOM)
+#if defined(HAVE_DECL_ARC4RANDOM) && HAVE_DECL_ARC4RANDOM
   return arc4random();
 #else
   static int x = (::srand(GetRandomNumberSeed()), 0);