From 50544e7e6556679ecfc355f78991c4f03fd129e4 Mon Sep 17 00:00:00 2001
From: Joerg Sonnenberger <joerg@bec.de>
Date: Fri, 17 May 2013 21:17:34 +0000
Subject: [PATCH] Add NetBSD support.

llvm-svn: 182162
---
 libcxx/include/__config | 14 +++++++++++++-
 libcxx/include/__locale | 12 ++++++++++--
 libcxx/include/locale   |  2 ++
 libcxx/src/locale.cpp   | 39 ++++++++++++++++++++++++++++++---------
 4 files changed, 55 insertions(+), 12 deletions(-)

diff --git a/libcxx/include/__config b/libcxx/include/__config
index d5c39858ae33..ca850d39bfbd 100644
--- a/libcxx/include/__config
+++ b/libcxx/include/__config
@@ -56,6 +56,18 @@
 # endif  // __LONG_LONG_SUPPORTED
 #endif  // __FreeBSD__
 
+#ifdef __NetBSD__
+# include <sys/endian.h>
+#  if _BYTE_ORDER == _LITTLE_ENDIAN
+#   define _LIBCPP_LITTLE_ENDIAN 1
+#   define _LIBCPP_BIG_ENDIAN    0
+# else  // _BYTE_ORDER == _LITTLE_ENDIAN
+#   define _LIBCPP_LITTLE_ENDIAN 0
+#   define _LIBCPP_BIG_ENDIAN    1
+# endif  // _BYTE_ORDER == _LITTLE_ENDIAN
+# define _LIBCPP_HAS_QUICK_EXIT
+#endif  // __NetBSD__
+
 #ifdef _WIN32
 #  define _LIBCPP_LITTLE_ENDIAN 1
 #  define _LIBCPP_BIG_ENDIAN    0
@@ -473,7 +485,7 @@ template <unsigned> struct __static_assert_check {};
 #define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
 #endif
 
-#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || defined(__sun__)
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || defined(__sun__) || defined(__NetBSD__)
 #define _LIBCPP_LOCALE__L_EXTENSIONS 1
 #endif
 #ifdef __FreeBSD__
diff --git a/libcxx/include/__locale b/libcxx/include/__locale
index 24d565b69adb..92f4e0ca7a7e 100644
--- a/libcxx/include/__locale
+++ b/libcxx/include/__locale
@@ -339,12 +339,12 @@ public:
     static const mask punct  = _PUNCT;
     static const mask xdigit = _HEX;
     static const mask blank  = _BLANK;
-#elif (defined(__APPLE__) || defined(__FreeBSD__)) || defined(EMSCRIPTEN)
+#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(EMSCRIPTEN) || defined(__NetBSD__)
 #ifdef __APPLE__
     typedef __uint32_t mask;
 #elif defined(__FreeBSD__)
     typedef unsigned long mask;
-#elif defined(EMSCRIPTEN)
+#elif defined(EMSCRIPTEN) ||  defined(__NetBSD__)
     typedef unsigned short mask;
 #endif
     static const mask space  = _CTYPE_S;
@@ -356,7 +356,11 @@ public:
     static const mask digit  = _CTYPE_D;
     static const mask punct  = _CTYPE_P;
     static const mask xdigit = _CTYPE_X;
+# if defined(__NetBSD__)
+    static const mask blank  = _CTYPE_BL;
+# else
     static const mask blank  = _CTYPE_B;
+# endif
 #elif defined(__sun__)
     typedef unsigned int mask;
     static const mask space  = _ISSPACE;
@@ -596,6 +600,10 @@ public:
     static const int* __classic_upper_table() _NOEXCEPT;
     static const int* __classic_lower_table() _NOEXCEPT;
 #endif
+#if defined(__NetBSD__)
+    static const short* __classic_upper_table() _NOEXCEPT;
+    static const short* __classic_lower_table() _NOEXCEPT;
+#endif
 
 protected:
     ~ctype();
diff --git a/libcxx/include/locale b/libcxx/include/locale
index 49f9c08fa8cc..6d617e754302 100644
--- a/libcxx/include/locale
+++ b/libcxx/include/locale
@@ -206,6 +206,8 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 #if defined(__APPLE__) || defined(__FreeBSD__)
 #  define _LIBCPP_GET_C_LOCALE 0
+#elif defined(__NetBSD__)
+#  define _LIBCPP_GET_C_LOCALE LC_C_LOCALE
 #else
 #  define _LIBCPP_GET_C_LOCALE __cloc()
    // Get the C locale object
diff --git a/libcxx/src/locale.cpp b/libcxx/src/locale.cpp
index 97c2102c1b50..79cb5c92d480 100644
--- a/libcxx/src/locale.cpp
+++ b/libcxx/src/locale.cpp
@@ -790,7 +790,7 @@ ctype<wchar_t>::do_toupper(char_type c) const
 {
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
     return isascii(c) ? _DefaultRuneLocale.__mapupper[c] : c;
-#elif defined(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__) || defined(EMSCRIPTEN) || defined(__NetBSD__)
     return isascii(c) ? ctype<char>::__classic_upper_table()[c] : c;
 #else
     return (isascii(c) && iswlower_l(c, __cloc())) ? c-L'a'+L'A' : c;
@@ -803,7 +803,7 @@ ctype<wchar_t>::do_toupper(char_type* low, const char_type* high) const
     for (; low != high; ++low)
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
         *low = isascii(*low) ? _DefaultRuneLocale.__mapupper[*low] : *low;
-#elif defined(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__) || defined(EMSCRIPTEN) || defined(__NetBSD__)
         *low = isascii(*low) ? ctype<char>::__classic_upper_table()[*low]
                              : *low;
 #else
@@ -817,7 +817,7 @@ ctype<wchar_t>::do_tolower(char_type c) const
 {
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
     return isascii(c) ? _DefaultRuneLocale.__maplower[c] : c;
-#elif defined(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__) || defined(EMSCRIPTEN) || defined(__NetBSD__)
     return isascii(c) ? ctype<char>::__classic_lower_table()[c] : c;
 #else
     return (isascii(c) && isupper_l(c, __cloc())) ? c-L'A'+'a' : c;
@@ -830,7 +830,7 @@ ctype<wchar_t>::do_tolower(char_type* low, const char_type* high) const
     for (; low != high; ++low)
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
         *low = isascii(*low) ? _DefaultRuneLocale.__maplower[*low] : *low;
-#elif defined(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__) || defined(EMSCRIPTEN) || defined(__NetBSD__)
         *low = isascii(*low) ? ctype<char>::__classic_lower_table()[*low]
                              : *low;
 #else
@@ -897,9 +897,11 @@ ctype<char>::do_toupper(char_type c) const
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
     return isascii(c) ?
       static_cast<char>(_DefaultRuneLocale.__mapupper[static_cast<ptrdiff_t>(c)]) : c;
+#elif defined(__NetBSD__)
+    return static_cast<char>(__classic_upper_table()[static_cast<unsigned char>(c)]);
 #elif defined(__GLIBC__) || defined(EMSCRIPTEN)
     return isascii(c) ? 
-      static_cast<char>(__classic_upper_table()[static_cast<size_t>(c)]) : c;
+      static_cast<char>(__classic_upper_table()[static_cast<unsigned char>(c)]) : c;
 #else
     return (isascii(c) && islower_l(c, __cloc())) ? c-'a'+'A' : c;
 #endif
@@ -912,6 +914,8 @@ ctype<char>::do_toupper(char_type* low, const char_type* high) const
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
         *low = isascii(*low) ?
           static_cast<char>(_DefaultRuneLocale.__mapupper[static_cast<ptrdiff_t>(*low)]) : *low;
+#elif defined(__NetBSD__)
+        *low = static_cast<char>(__classic_upper_table()[static_cast<unsigned char>(*low)]);
 #elif defined(__GLIBC__) || defined(EMSCRIPTEN)
         *low = isascii(*low) ?
           static_cast<char>(__classic_upper_table()[static_cast<size_t>(*low)]) : *low;
@@ -927,7 +931,9 @@ ctype<char>::do_tolower(char_type c) const
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
     return isascii(c) ?
       static_cast<char>(_DefaultRuneLocale.__maplower[static_cast<ptrdiff_t>(c)]) : c;
-#elif defined(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__NetBSD__)
+    return static_cast<char>(__classic_lower_table()[static_cast<unsigned char>(c)]);
+#elif defined(__GLIBC__) || defined(EMSCRIPTEN) || defined(__NetBSD__)
     return isascii(c) ?
       static_cast<char>(__classic_lower_table()[static_cast<size_t>(c)]) : c;
 #else
@@ -941,6 +947,8 @@ ctype<char>::do_tolower(char_type* low, const char_type* high) const
     for (; low != high; ++low)
 #ifdef _LIBCPP_HAS_DEFAULTRUNELOCALE
         *low = isascii(*low) ? static_cast<char>(_DefaultRuneLocale.__maplower[static_cast<ptrdiff_t>(*low)]) : *low;
+#elif defined(__NetBSD__)
+        *low = static_cast<char>(__classic_lower_table()[static_cast<unsigned char>(*low)]);
 #elif defined(__GLIBC__) || defined(EMSCRIPTEN)
         *low = isascii(*low) ? static_cast<char>(__classic_lower_table()[static_cast<size_t>(*low)]) : *low;
 #else
@@ -993,6 +1001,8 @@ ctype<char>::classic_table()  _NOEXCEPT
 {
 #if defined(__APPLE__) || defined(__FreeBSD__)
     return _DefaultRuneLocale.__runetype;
+#elif defined(__NetBSD__)
+    return _C_ctype_tab_ + 1;
 #elif defined(__GLIBC__)
     return __cloc()->__ctype_b;
 #elif __sun__
@@ -1024,9 +1034,20 @@ ctype<char>::__classic_upper_table() _NOEXCEPT
 {
     return __cloc()->__ctype_toupper;
 }
-#endif // __GLIBC__
+#elif __NetBSD__
+const short*
+ctype<char>::__classic_lower_table() _NOEXCEPT
+{
+    return _C_tolower_tab_ + 1;
+}
 
-#if defined(EMSCRIPTEN)
+const short*
+ctype<char>::__classic_upper_table() _NOEXCEPT
+{
+    return _C_toupper_tab_ + 1;
+}
+
+#elif defined(EMSCRIPTEN)
 const int*
 ctype<char>::__classic_lower_table() _NOEXCEPT
 {
@@ -1038,7 +1059,7 @@ ctype<char>::__classic_upper_table() _NOEXCEPT
 {
     return *__ctype_toupper_loc();
 }
-#endif // EMSCRIPTEN
+#endif // __GLIBC__ || EMSCRIPTEN || __NETBSD__
 
 // template <> class ctype_byname<char>