Update to r178253 from March 29, 2013.

13 files changed, 51 insertions, 63 deletions

diff --git a/system/lib/libcxx/chrono.cpp b/system/lib/libcxx/chrono.cpp
index 1ce2e280..15a6f466 100644
--- a/system/lib/libcxx/chrono.cpp
+++ b/system/lib/libcxx/chrono.cpp
@@ -9,7 +9,7 @@
 
 #include "chrono"
 #include <sys/time.h>        //for gettimeofday and timeval
-#if __APPLE__
+#ifdef __APPLE__
 #include <mach/mach_time.h>  // mach_absolute_time, mach_timebase_info_data_t
 #else  /* !__APPLE__ */
 #include <cerrno>  // errno
@@ -50,7 +50,7 @@ system_clock::from_time_t(time_t t) _NOEXCEPT
 
 const bool steady_clock::is_steady;
 
-#if __APPLE__
+#ifdef __APPLE__
 //   mach_absolute_time() * MachInfo.numer / MachInfo.denom is the number of
 //   nanoseconds since the computer booted up.  MachInfo.numer and MachInfo.denom
 //   are run time constants supplied by the OS.  This clock has no relationship
diff --git a/system/lib/libcxx/debug.cpp b/system/lib/libcxx/debug.cpp
index f3a0262d..2d4b094b 100644
--- a/system/lib/libcxx/debug.cpp
+++ b/system/lib/libcxx/debug.cpp
@@ -17,7 +17,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-_LIBCPP_VISIBLE
+_LIBCPP_FUNC_VIS
 __libcpp_db*
 __get_db()
 {
@@ -25,7 +25,7 @@ __get_db()
     return &db;
 }
 
-_LIBCPP_VISIBLE
+_LIBCPP_FUNC_VIS
 const __libcpp_db*
 __get_const_db()
 {
diff --git a/system/lib/libcxx/exception.cpp b/system/lib/libcxx/exception.cpp
index 8d5ded4d..7db304d8 100644
--- a/system/lib/libcxx/exception.cpp
+++ b/system/lib/libcxx/exception.cpp
@@ -14,7 +14,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
   #include <cxxabi.h>
 
   using namespace __cxxabiv1;
@@ -77,7 +77,6 @@ get_terminate() _NOEXCEPT
     return __sync_fetch_and_add(&__terminate_handler, (terminate_handler)0);
 }
 
-#ifndef EMSCRIPTEN // We provide this in JS
 _LIBCPP_NORETURN
 void
 terminate() _NOEXCEPT
@@ -98,13 +97,12 @@ terminate() _NOEXCEPT
     }
 #endif  // _LIBCPP_NO_EXCEPTIONS
 }
-#endif // !EMSCRIPTEN
 #endif // !defined(LIBCXXRT) && !defined(_LIBCPPABI_VERSION)
 
-#if !defined(LIBCXXRT) && !defined(__GLIBCXX__) && !defined(EMSCRIPTEN)
+#if !defined(LIBCXXRT) && !defined(__GLIBCXX__)
 bool uncaught_exception() _NOEXCEPT
 {
-#if __APPLE__ || defined(_LIBCPPABI_VERSION)
+#if defined(__APPLE__) || defined(_LIBCPPABI_VERSION)
     // on Darwin, there is a helper function so __cxa_get_globals is private
     return __cxa_uncaught_exception();
 #else  // __APPLE__
diff --git a/system/lib/libcxx/iostream.cpp b/system/lib/libcxx/iostream.cpp
index f5b959b4..7fc71df4 100644
--- a/system/lib/libcxx/iostream.cpp
+++ b/system/lib/libcxx/iostream.cpp
@@ -13,6 +13,8 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
+static mbstate_t state_types[6] = {};
+
 _ALIGNAS_TYPE (__stdinbuf<char> ) static char __cin [sizeof(__stdinbuf <char>)];
 _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)];
 _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)];
@@ -33,17 +35,17 @@ ios_base::Init __start_std_streams;
 
 ios_base::Init::Init()
 {
-    istream* cin_ptr  = ::new(cin)  istream(::new(__cin)  __stdinbuf <char>(stdin) );
-    ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout));
-    ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr));
+    istream* cin_ptr  = ::new(cin)  istream(::new(__cin)  __stdinbuf <char>(stdin, state_types+0) );
+    ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout, state_types+1));
+    ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr, state_types+2));
                         ::new(clog) ostream(cerr_ptr->rdbuf());
     cin_ptr->tie(cout_ptr);
     _VSTD::unitbuf(*cerr_ptr);
     cerr_ptr->tie(cout_ptr);
 
-    wistream* wcin_ptr  = ::new(wcin)  wistream(::new(__wcin)  __stdinbuf <wchar_t>(stdin) );
-    wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout));
-    wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr));
+    wistream* wcin_ptr  = ::new(wcin)  wistream(::new(__wcin)  __stdinbuf <wchar_t>(stdin, state_types+3) );
+    wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout, state_types+4));
+    wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr, state_types+5));
                           ::new(wclog) wostream(wcerr_ptr->rdbuf());
     wcin_ptr->tie(wcout_ptr);
     _VSTD::unitbuf(*wcerr_ptr);
diff --git a/system/lib/libcxx/locale.cpp b/system/lib/libcxx/locale.cpp
index 35a65086..b7a47843 100644
--- a/system/lib/libcxx/locale.cpp
+++ b/system/lib/libcxx/locale.cpp
@@ -25,7 +25,7 @@
 #include "cstring"
 #include "cwctype"
 #include "__sso_allocator"
-#if _WIN32
+#ifdef _WIN32
 #include <support/win32/locale_win32.h>
 #else // _WIN32
 #include <langinfo.h>
@@ -786,7 +786,7 @@ 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__)
     return isascii(c) ? ctype<char>::__classic_upper_table()[c] : c;
 #else
     return (isascii(c) && iswlower_l(c, __cloc())) ? c-L'a'+L'A' : c;
@@ -799,7 +799,7 @@ 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__)
         *low = isascii(*low) ? ctype<char>::__classic_upper_table()[*low]
                              : *low;
 #else
@@ -813,7 +813,7 @@ 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__)
     return isascii(c) ? ctype<char>::__classic_lower_table()[c] : c;
 #else
     return (isascii(c) && isupper_l(c, __cloc())) ? c-L'A'+'a' : c;
@@ -826,7 +826,7 @@ 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__)
         *low = isascii(*low) ? ctype<char>::__classic_lower_table()[*low]
                              : *low;
 #else
@@ -893,7 +893,7 @@ 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(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__)
     return isascii(c) ? 
       static_cast<char>(__classic_upper_table()[static_cast<size_t>(c)]) : c;
 #else
@@ -908,7 +908,7 @@ 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(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__)
         *low = isascii(*low) ?
           static_cast<char>(__classic_upper_table()[static_cast<size_t>(*low)]) : *low;
 #else
@@ -923,7 +923,7 @@ 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(__GLIBC__)
     return isascii(c) ?
       static_cast<char>(__classic_lower_table()[static_cast<size_t>(c)]) : c;
 #else
@@ -937,7 +937,7 @@ 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(__GLIBC__) || defined(EMSCRIPTEN)
+#elif defined(__GLIBC__)
         *low = isascii(*low) ? static_cast<char>(__classic_lower_table()[static_cast<size_t>(*low)]) : *low;
 #else
         *low = (isascii(*low) && isupper_l(*low, __cloc())) ? *low-'A'+'a' : *low;
@@ -978,12 +978,6 @@ ctype<char>::do_narrow(const char_type* low, const char_type* high, char dfault,
     return low;
 }
 
-#ifdef EMSCRIPTEN
-extern "C" const unsigned short ** __ctype_b_loc();
-extern "C" const int ** __ctype_tolower_loc();
-extern "C" const int ** __ctype_toupper_loc();
-#endif
-
 const ctype<char>::mask*
 ctype<char>::classic_table()  _NOEXCEPT
 {
@@ -993,12 +987,10 @@ ctype<char>::classic_table()  _NOEXCEPT
     return __cloc()->__ctype_b;
 #elif __sun__
     return __ctype_mask;
-#elif _WIN32
+#elif defined(_WIN32)
     return _ctype+1; // internal ctype mask table defined in msvcrt.dll
 // This is assumed to be safe, which is a nonsense assumption because we're
 // going to end up dereferencing it later...
-#elif EMSCRIPTEN
-    return *__ctype_b_loc();
 #else
     // Platform not supported: abort so the person doing the port knows what to
     // fix
@@ -1022,20 +1014,6 @@ ctype<char>::__classic_upper_table() _NOEXCEPT
 }
 #endif // __GLIBC__
 
-#if defined(EMSCRIPTEN)
-const int*
-ctype<char>::__classic_lower_table() _NOEXCEPT
-{
-    return *__ctype_tolower_loc();
-}
-
-const int*
-ctype<char>::__classic_upper_table() _NOEXCEPT
-{
-    return *__ctype_toupper_loc();
-}
-#endif // EMSCRIPTEN
-
 // template <> class ctype_byname<char>
 
 ctype_byname<char>::ctype_byname(const char* name, size_t refs)
@@ -5801,7 +5779,7 @@ moneypunct_byname<char, true>::init(const char* nm)
         __frac_digits_ = lc->int_frac_digits;
     else
         __frac_digits_ = base::do_frac_digits();
-#if _WIN32
+#ifdef _WIN32
     if (lc->p_sign_posn == 0)
 #else // _WIN32
     if (lc->int_p_sign_posn == 0)
@@ -5809,7 +5787,7 @@ moneypunct_byname<char, true>::init(const char* nm)
         __positive_sign_ = "()";
     else
         __positive_sign_ = lc->positive_sign;
-#if _WIN32
+#ifdef _WIN32
     if(lc->n_sign_posn == 0)
 #else // _WIN32
     if (lc->int_n_sign_posn == 0)
@@ -5821,7 +5799,7 @@ moneypunct_byname<char, true>::init(const char* nm)
     // the same places in curr_symbol since there's no way to
     // represent anything else.
     string_type __dummy_curr_symbol = __curr_symbol_;
-#if _WIN32
+#ifdef _WIN32
     __init_pat(__pos_format_, __dummy_curr_symbol, true,
                lc->p_cs_precedes, lc->p_sep_by_space, lc->p_sign_posn, ' ');
     __init_pat(__neg_format_, __curr_symbol_, true,
@@ -5960,7 +5938,7 @@ moneypunct_byname<wchar_t, true>::init(const char* nm)
         __frac_digits_ = lc->int_frac_digits;
     else
         __frac_digits_ = base::do_frac_digits();
-#if _WIN32
+#ifdef _WIN32
     if (lc->p_sign_posn == 0)
 #else // _WIN32
     if (lc->int_p_sign_posn == 0)
@@ -5980,7 +5958,7 @@ moneypunct_byname<wchar_t, true>::init(const char* nm)
         wbe = wbuf + j;
         __positive_sign_.assign(wbuf, wbe);
     }
-#if _WIN32
+#ifdef _WIN32
     if (lc->n_sign_posn == 0)
 #else // _WIN32
     if (lc->int_n_sign_posn == 0)
@@ -6004,7 +5982,7 @@ moneypunct_byname<wchar_t, true>::init(const char* nm)
     // the same places in curr_symbol since there's no way to
     // represent anything else.
     string_type __dummy_curr_symbol = __curr_symbol_;
-#if _WIN32
+#ifdef _WIN32
     __init_pat(__pos_format_, __dummy_curr_symbol, true,
                lc->p_cs_precedes, lc->p_sep_by_space, lc->p_sign_posn, L' ');
     __init_pat(__neg_format_, __curr_symbol_, true,
diff --git a/system/lib/libcxx/memory.cpp b/system/lib/libcxx/memory.cpp
index 14084a52..98bcc864 100644
--- a/system/lib/libcxx/memory.cpp
+++ b/system/lib/libcxx/memory.cpp
@@ -122,7 +122,15 @@ __shared_weak_count::__get_deleter(const type_info&) const _NOEXCEPT
 #if __has_feature(cxx_atomic)
 
 static const std::size_t __sp_mut_count = 16;
-static mutex mut_back[__sp_mut_count];
+static pthread_mutex_t mut_back_imp[__sp_mut_count] =
+{
+    PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER,
+    PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER,
+    PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER,
+    PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER
+};
+
+static mutex* mut_back = reinterpret_cast<std::mutex*>(mut_back_imp);
 
 _LIBCPP_CONSTEXPR __sp_mut::__sp_mut(void* p) _NOEXCEPT
    : __lx(p)
diff --git a/system/lib/libcxx/new.cpp b/system/lib/libcxx/new.cpp
index 3ad593a3..b23a516f 100644
--- a/system/lib/libcxx/new.cpp
+++ b/system/lib/libcxx/new.cpp
@@ -15,7 +15,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
     #include <cxxabi.h>
 
     #ifndef _LIBCPPABI_VERSION
diff --git a/system/lib/libcxx/readme.txt b/system/lib/libcxx/readme.txt
index c0c90c3a..97d8db86 100644
--- a/system/lib/libcxx/readme.txt
+++ b/system/lib/libcxx/readme.txt
@@ -1 +1 @@
-These files are from libc++, svn revision 176559, Mar 7 2013
+These files are from libc++, svn revision 178253, Mar 29 2013
diff --git a/system/lib/libcxx/stdexcept.cpp b/system/lib/libcxx/stdexcept.cpp
index 660ebfe2..0c4e8323 100644
--- a/system/lib/libcxx/stdexcept.cpp
+++ b/system/lib/libcxx/stdexcept.cpp
@@ -20,7 +20,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
 #include <cxxabi.h>
 #elif defined(LIBCXXRT) || __has_include(<cxxabi.h>)
 #include <cxxabi.h>
diff --git a/system/lib/libcxx/string.cpp b/system/lib/libcxx/string.cpp
index 40723e74..c71af4fe 100644
--- a/system/lib/libcxx/string.cpp
+++ b/system/lib/libcxx/string.cpp
@@ -11,7 +11,7 @@
 #include "cstdlib"
 #include "cwchar"
 #include "cerrno"
-#if _WIN32
+#ifdef _WIN32
 #include "support/win32/support.h"
 #endif // _WIN32
 
diff --git a/system/lib/libcxx/strstream.cpp b/system/lib/libcxx/strstream.cpp
index 8cd19e6a..518422bd 100644
--- a/system/lib/libcxx/strstream.cpp
+++ b/system/lib/libcxx/strstream.cpp
@@ -158,6 +158,8 @@ strstreambuf::overflow(int_type __c)
             return int_type(EOF);
         streamsize old_size = (epptr() ? epptr() : egptr()) - eback();
         streamsize new_size = max<streamsize>(__alsize_, 2*old_size);
+        if (new_size == 0)
+            new_size = __default_alsize;
         char* buf = nullptr;
         if (__palloc_)
             buf = static_cast<char*>(__palloc_(static_cast<size_t>(new_size)));
diff --git a/system/lib/libcxx/thread.cpp b/system/lib/libcxx/thread.cpp
index a2d95bb2..7a06b296 100644
--- a/system/lib/libcxx/thread.cpp
+++ b/system/lib/libcxx/thread.cpp
@@ -13,8 +13,8 @@
 #include "future"
 #include "limits"
 #include <sys/types.h>
-#if !_WIN32
-#if !__sun__ && !__linux__
+#if !defined(_WIN32)
+#if !defined(__sun__) && !defined(__linux__)
 #include <sys/sysctl.h>
 #else
 #include <unistd.h>
@@ -65,7 +65,7 @@ thread::hardware_concurrency() _NOEXCEPT
     std::size_t s = sizeof(n);
     sysctl(mib, 2, &n, &s, 0, 0);
     return n;
-#elif (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && defined(_SC_NPROCESSORS_ONLN)) || defined(EMSCRIPTEN)
+#elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && defined(_SC_NPROCESSORS_ONLN)
     long result = sysconf(_SC_NPROCESSORS_ONLN);
     // sysconf returns -1 if the name is invalid, the option does not exist or
     // does not have a definite limit.
diff --git a/system/lib/libcxx/typeinfo.cpp b/system/lib/libcxx/typeinfo.cpp
index 6bab0771..7b47d741 100644
--- a/system/lib/libcxx/typeinfo.cpp
+++ b/system/lib/libcxx/typeinfo.cpp
@@ -12,7 +12,7 @@
 #define __has_include(inc) 0
 #endif
 
-#if __APPLE__
+#ifdef __APPLE__
 #include <cxxabi.h>
 #elif defined(LIBCXXRT) || __has_include(<cxxabi.h>)
 #include <cxxabi.h>
@@ -50,7 +50,7 @@ std::bad_typeid::what() const _NOEXCEPT
   return "std::bad_typeid";
 }
 
-#if __APPLE__
+#ifdef __APPLE__
   // On Darwin, the cxa_bad_* functions cannot be in the lower level library
   // because bad_cast and bad_typeid are defined in his higher level library
   void __cxxabiv1::__cxa_bad_typeid() { throw std::bad_typeid(); }