Add PS4 port.

Thanks to Eddie Edwards.

doc/install.html

@@ -120,7 +120,7 @@ operating systems, CPUs and compilers:
 <tr class="even">
 <td class="compatcpu">x64 (64 bit)</td>
 <td class="compatos">GCC 4.x</td>
-<td class="compatos compatno">&nbsp;</td>
+<td class="compatos">ORBIS (<a href="#ps4">PS4</a>)</td>
 <td class="compatos">GCC 4.x</td>
 <td class="compatos">MSVC + SDK v7.0<br>WinSDK v7.0</td>
 </tr>
@@ -460,7 +460,7 @@ make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" \
 </pre>
 <p>
 You can cross-compile for <b id="ps3">PS3</b> using the PS3&nbsp;SDK from
-a Linux host or a Windows host (requires 32 bit MinGW (GCC) on the host,
+a Linux host or a Windows host (requires 32&nbsp;bit MinGW (GCC) on the host,
 too). Due to restrictions on consoles, the JIT compiler is disabled and
 only the fast interpreter is built:
 </p>
@@ -468,6 +468,22 @@ only the fast interpreter is built:
 make HOST_CC="gcc -m32" CROSS=ppu-lv2-
 </pre>
 <p>
+You can cross-compile for <b id="ps4">PS4</b> from a Windows host using
+the PS4&nbsp;SDK (ORBIS) plus 64&nbsp;bit MSVC. Due to restrictions on
+consoles, the JIT compiler is disabled and only the fast interpreter
+is built.
+</p>
+<p>
+Open a "Visual Studio .NET Command Prompt" (64&nbsp;bit host compiler),
+<tt>cd</tt> to the directory where you've unpacked the sources and run
+the following commands. This builds a static library <tt>libluajit.a</tt>,
+which can be linked against your game, just like the Lua library.
+</p>
+<pre class="code">
+cd src
+ps4build
+</pre>
+<p>
 You can cross-compile for <b id="xbox360">Xbox 360</b> using the
 Xbox&nbsp;360 SDK (MSVC + XEDK). Due to restrictions on consoles, the
 JIT compiler is disabled and only the fast interpreter is built.

doc/luajit.html

@@ -158,7 +158,7 @@ LuaJIT is Copyright © 2005-2014 Mike Pall, released under the
 <tr><td>Windows</td><td>Linux</td><td>BSD</td><td>OSX</td><td>POSIX</td></tr>
 </table>
 <table class="feature os os2">
-<tr><td><span style="font-size:90%;">Embedded</span></td><td>Android</td><td>iOS</td><td>PS3</td><td>Xbox 360</td></tr>
+<tr><td><span style="font-size:90%;">Embedded</span></td><td>Android</td><td>iOS</td><td>PS3</td><td>PS4</td><td>Xbox 360</td></tr>
 </table>
 <table class="feature compiler">
 <tr><td>GCC</td><td>CLANG<br>LLVM</td><td>MSVC</td></tr>

src/lib_io.c

@@ -426,7 +426,7 @@ LJLIB_CF(io_popen)
 LJLIB_CF(io_tmpfile)
 {
   IOFileUD *iof = io_file_new(L);
-#if LJ_TARGET_PS3
+#if LJ_TARGET_PS3 || LJ_TARGET_PS4
   iof->fp = NULL; errno = ENOSYS;
 #else
   iof->fp = tmpfile();

src/lib_os.c

@@ -70,7 +70,7 @@ LJLIB_CF(os_rename)
 
 LJLIB_CF(os_tmpname)
 {
-#if LJ_TARGET_PS3
+#if LJ_TARGET_PS3 || LJ_TARGET_PS4
   lj_err_caller(L, LJ_ERR_OSUNIQF);
   return 0;
 #else

src/lj_alloc.c

@@ -188,7 +188,7 @@ static LJ_AINLINE void *CALL_MMAP(size_t size)
   return ptr;
 }
 
-#elif LJ_TARGET_OSX || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun__)
+#elif LJ_TARGET_OSX || LJ_TARGET_PS4 || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun__)
 
 /* OSX and FreeBSD mmap() use a naive first-fit linear search.
 ** That's perfect for us. Except that -pagezero_size must be set for OSX,
@@ -197,12 +197,14 @@ static LJ_AINLINE void *CALL_MMAP(size_t size)
 */
 #if LJ_TARGET_OSX
 #define MMAP_REGION_START	((uintptr_t)0x10000)
+#elif LJ_TARGET_PS4
+#define MMAP_REGION_START	((uintptr_t)0x4000)
 #else
 #define MMAP_REGION_START	((uintptr_t)0x10000000)
 #endif
 #define MMAP_REGION_END		((uintptr_t)0x80000000)
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4
 #include <sys/resource.h>
 #endif
 
@@ -212,7 +214,7 @@ static LJ_AINLINE void *CALL_MMAP(size_t size)
   /* Hint for next allocation. Doesn't need to be thread-safe. */
   static uintptr_t alloc_hint = MMAP_REGION_START;
   int retry = 0;
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4
   static int rlimit_modified = 0;
   if (LJ_UNLIKELY(rlimit_modified == 0)) {
     struct rlimit rlim;

src/lj_arch.h

@@ -66,8 +66,8 @@
 #define LUAJIT_OS	LUAJIT_OS_LINUX
 #elif defined(__MACH__) && defined(__APPLE__)
 #define LUAJIT_OS	LUAJIT_OS_OSX
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
-      defined(__NetBSD__) || defined(__OpenBSD__)
+#elif (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+       defined(__NetBSD__) || defined(__OpenBSD__)) && !defined(__ORBIS__)
 #define LUAJIT_OS	LUAJIT_OS_BSD
 #elif (defined(__sun__) && defined(__svr4__)) || defined(__CYGWIN__)
 #define LUAJIT_OS	LUAJIT_OS_POSIX
@@ -104,6 +104,13 @@
 #define LJ_TARGET_CONSOLE	1
 #endif
 
+#ifdef __ORBIS__
+#define LJ_TARGET_PS4		1
+#define LJ_TARGET_CONSOLE	1
+#undef NULL
+#define NULL ((void*)0)
+#endif
+
 #if _XBOX_VER >= 200
 #define LJ_TARGET_XBOX360	1
 #define LJ_TARGET_CONSOLE	1

src/ps4build.bat

@@ -0,0 +1,103 @@
+@rem Script to build LuaJIT with the PS4 SDK.
+@rem Donated to the public domain.
+@rem
+@rem Open a "Visual Studio .NET Command Prompt" (64 bit host compiler)
+@rem Then cd to this directory and run this script.
+
+@if not defined INCLUDE goto :FAIL
+@if not defined SCE_ORBIS_SDK_DIR goto :FAIL
+
+@setlocal
+@rem ---- Host compiler ----
+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE
+@set LJLINK=link /nologo
+@set LJMT=mt /nologo
+@set DASMDIR=..\dynasm
+@set DASM=%DASMDIR%\dynasm.lua
+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c
+
+%LJCOMPILE% host\minilua.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:minilua.exe minilua.obj
+@if errorlevel 1 goto :BAD
+if exist minilua.exe.manifest^
+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe
+
+@rem Check for 64 bit host compiler.
+@minilua
+@if not errorlevel 8 goto :FAIL
+
+@set DASMFLAGS=-D P64
+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_x86.dasc
+@if errorlevel 1 goto :BAD
+
+%LJCOMPILE% /I "." /I %DASMDIR% -DLUAJIT_TARGET=LUAJIT_ARCH_X64 -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI host\buildvm*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:buildvm.exe buildvm*.obj
+@if errorlevel 1 goto :BAD
+if exist buildvm.exe.manifest^
+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe
+
+buildvm -m elfasm -o lj_vm.s
+@if errorlevel 1 goto :BAD
+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m libdef -o lj_libdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m recdef -o lj_recdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
+@if errorlevel 1 goto :BAD
+
+@rem ---- Cross compiler ----
+@set LJCOMPILE="%SCE_ORBIS_SDK_DIR%\host_tools\bin\orbis-clang" -c -Wall -DLUAJIT_DISABLE_FFI
+@set LJLIB="%SCE_ORBIS_SDK_DIR%\host_tools\bin\orbis-ar" rcus
+@set INCLUDE=""
+
+orbis-as -o lj_vm.o lj_vm.s
+
+@if "%1" neq "debug" goto :NODEBUG
+@shift
+@set LJCOMPILE=%LJCOMPILE% -g -O0
+@set TARGETLIB=libluajitD.a
+goto :BUILD
+:NODEBUG
+@set LJCOMPILE=%LJCOMPILE% -O2
+@set TARGETLIB=libluajit.a
+:BUILD
+del %TARGETLIB%
+@if "%1"=="amalg" goto :AMALG
+for %%f in (lj_*.c lib_*.c) do (
+  %LJCOMPILE% %%f
+  @if errorlevel 1 goto :BAD
+)
+
+%LJLIB% %TARGETLIB% lj_*.o lib_*.o
+@if errorlevel 1 goto :BAD
+@goto :NOAMALG
+:AMALG
+%LJCOMPILE% ljamalg.c
+@if errorlevel 1 goto :BAD
+%LJLIB% %TARGETLIB% ljamalg.o lj_vm.o
+@if errorlevel 1 goto :BAD
+:NOAMALG
+
+@del *.o *.obj *.manifest minilua.exe buildvm.exe
+@echo.
+@echo === Successfully built LuaJIT for PS4 ===
+
+@goto :END
+:BAD
+@echo.
+@echo *******************************************************
+@echo *** Build FAILED -- Please check the error messages ***
+@echo *******************************************************
+@goto :END
+:FAIL
+@echo To run this script you must open a "Visual Studio .NET Command Prompt"
+@echo (64 bit host compiler). The PS4 Orbis SDK must be installed, too.
+:END