Merge pull request #353 from fgsfdsfgs/switch-hl

Nintendo Switch support

README.md

@@ -237,6 +237,39 @@ schroot --chroot jessie -- cmake --build build-in-chroot
 
 TODO
 
+## Nintendo Switch
+
+### Prerequisites
+
+1. Set up [`dkp-pacman`](https://devkitpro.org/wiki/devkitPro_pacman).
+2. Install dependency packages:
+```
+sudo dkp-pacman -S switch-dev dkp-toolchain-vars switch-mesa switch-libdrm_nouveau switch-sdl2
+```
+3. Make sure the `DEVKITPRO` environment variable is set to the devkitPro SDK root:
+```
+export DEVKITPRO=/opt/devkitpro
+```
+4. Install libsolder:
+```
+source $DEVKITPRO/switchvars.sh
+git clone https://github.com/fgsfdsfgs/libsolder.git
+make -C libsolder install
+```
+
+### Building using CMake
+```
+mkdir build && cd build
+aarch64-none-elf-cmake -G"Unix Makefiles" -DCMAKE_PROJECT_HLSDK-PORTABLE_INCLUDE="$DEVKITPRO/portlibs/switch/share/SolderShim.cmake" ..
+make -j
+```
+
+### Building using waf
+```
+./waf configure -T release --nswitch
+./waf build
+```
+
 ## Other platforms
 
 Building on other Unix-like platforms (e.g. FreeBSD) is supported.

cmake/LibraryNaming.cmake

@@ -42,6 +42,7 @@ check_symbol_exists(XASH_SERENITY "build.h" XASH_SERENITY)
 check_symbol_exists(XASH_WIN32 "build.h" XASH_WIN32)
 check_symbol_exists(XASH_WIN64 "build.h" XASH_WIN64)
 check_symbol_exists(XASH_X86 "build.h" XASH_X86)
+check_symbol_exists(XASH_NSWITCH "build.h" XASH_NSWITCH)
 unset(CMAKE_REQUIRED_INCLUDES)
 
 # engine/common/build.c
@@ -63,6 +64,8 @@ elseif(XASH_HAIKU)
 	set(BUILDOS "haiku")
 elseif(XASH_SERENITY)
 	set(BUILDOS "serenityos")
+elseif(XASH_NSWITCH)
+	set(BUILDOS "nswitch")
 else()
 	message(SEND_ERROR "Place your operating system name here! If this is a mistake, try to fix conditions above and report a bug")
 endif()

public/build.h

@@ -79,6 +79,7 @@ For more information, please refer to <http://unlicense.org/>
 #undef XASH_WIN32
 #undef XASH_WIN64
 #undef XASH_X86
+#undef XASH_NSWITCH
 
 //================================================================
 //
@@ -96,6 +97,10 @@ For more information, please refer to <http://unlicense.org/>
 	#if defined(_WIN64)
 		#define XASH_WIN64 1
 	#endif
+#elif defined __SWITCH__
+	#define XASH_NSWITCH 1
+	#define XASH_LITTLE_ENDIAN 1
+	#define XASH_POSIX 1
 #elif defined(__linux__)
 	#define XASH_LINUX 1
 	#if defined(__ANDROID__)
@@ -134,7 +139,7 @@ For more information, please refer to <http://unlicense.org/>
 #error "Place your operating system name here! If this is a mistake, try to fix conditions above and report a bug"
 #endif
 
-#if defined XASH_ANDROID || defined XASH_IOS
+#if defined XASH_ANDROID || defined XASH_IOS || defined XASH_NSWITCH
 	#define XASH_MOBILE_PLATFORM 1
 #endif
 

scripts/waifulib/library_naming.py

@@ -61,6 +61,7 @@ DEFINES = [
 'XASH_WIN32',
 'XASH_WIN64',
 'XASH_X86',
+'XASH_NSWITCH',
 ]
 
 def configure(conf):
@@ -92,6 +93,8 @@ def configure(conf):
 		buildos = "haiku"
 	elif conf.env.XASH_SERENITY:
 		buildos = "serenityos"
+	elif conf.env.XASH_NSWITCH:
+		buildos = "nswitch"
 	else:
 		conf.fatal("Place your operating system name in build.h and library_naming.py!\n"
 			"If this is a mistake, try to fix conditions above and report a bug")

scripts/waifulib/xcompile.py

@@ -30,6 +30,8 @@ ANDROID_NDK_API_MIN = { 10: 3, 19: 16, 20: 16, 23: 16, 25: 19 } # minimal API le
 ANDROID_STPCPY_API_MIN = 21 # stpcpy() introduced in SDK 21
 ANDROID_64BIT_API_MIN = 21 # minimal API level that supports 64-bit targets
 
+NSWITCH_ENVVARS = ['DEVKITPRO']
+
 # This class does support ONLY r10e and r19c/r20 NDK
 class Android:
 	ctx            = None # waf context
@@ -348,14 +350,100 @@ class Android:
 				ldflags += ['-march=armv5te']
 		return ldflags
 
+class NintendoSwitch:
+	ctx          = None # waf context
+	arch         = "arm64"
+	dkp_dir      = None
+	portlibs_dir = None
+	dka64_dir    = None
+	libnx_dir    = None
+
+	def __init__(self, ctx):
+		self.ctx = ctx
+
+		for i in NSWITCH_ENVVARS:
+			self.dkp_dir = os.getenv(i)
+			if self.dkp_dir != None:
+				break
+		else:
+			ctx.fatal('Set %s environment variable pointing to the DEVKITPRO home!' %
+				' or '.join(NSWITCH_ENVVARS))
+
+		self.dkp_dir = os.path.abspath(self.dkp_dir)
+
+		self.dka64_dir = os.path.join(self.dkp_dir, 'devkitA64')
+		if not os.path.exists(self.dka64_dir):
+			ctx.fatal('devkitA64 not found in `%s`. Install devkitA64!' % self.dka64_dir)
+
+		self.libnx_dir = os.path.join(self.dkp_dir, 'libnx')
+		if not os.path.exists(self.libnx_dir):
+			ctx.fatal('libnx not found in `%s`. Install libnx!' % self.libnx_dir)
+
+		self.portlibs_dir = os.path.join(self.dkp_dir, 'portlibs', 'switch')
+		if not os.path.exists(self.portlibs_dir):
+			ctx.fatal('No Switch libraries found in `%s`!' % self.portlibs_dir)
+
+	def gen_toolchain_prefix(self):
+		return 'aarch64-none-elf-'
+
+	def gen_gcc_toolchain_path(self):
+		return os.path.join(self.dka64_dir, 'bin', self.gen_toolchain_prefix())
+
+	def cc(self):
+		return self.gen_gcc_toolchain_path() + 'gcc'
+
+	def cxx(self):
+		return self.gen_gcc_toolchain_path() + 'g++'
+
+	def strip(self):
+		return self.gen_gcc_toolchain_path() + 'strip'
+
+	def pkgconfig(self):
+		# counter-intuitively, this motherfucker is in portlibs/switch/bin
+		return os.path.join(self.portlibs_dir, 'bin', self.gen_toolchain_prefix() + 'pkg-config')
+
+	def cflags(self, cxx = False):
+		cflags = []
+		# arch flags
+		cflags += ['-D__SWITCH__', '-march=armv8-a+crc+crypto', '-mtune=cortex-a57', '-mtp=soft', '-ftls-model=local-exec', '-fPIE']
+		# help the linker out
+		cflags += ['-ffunction-sections', '-fdata-sections']
+		# base include dirs
+		cflags += ['-isystem %s/include' % self.libnx_dir, '-I%s/include' % self.portlibs_dir]
+		if cxx:
+			# while these are supported, they could fuck up the crappy dynamic linker
+			cflags += ['-fno-exceptions', '-fno-rtti']
+			# the game wants GNU extensions
+			cflags += ['-std=gnu++17', '-D_GNU_SOURCE']
+		else:
+			cflags += ['-std=gnu11', '-D_GNU_SOURCE']
+		return cflags
+
+	# they go before object list
+	def linkflags(self):
+		linkflags = ['-fPIE', '-specs=%s/switch.specs' % self.libnx_dir]
+		# libsolder only supports sysv hashes and we need to build everything with -rdynamic
+		linkflags += ['-Wl,--hash-style=sysv', '-rdynamic']
+		# avoid pulling in and exposing mesa's internals, that crashes it for some god forsaken reason
+		linkflags += ['-Wl,--exclude-libs=libglapi.a', '-Wl,--exclude-libs=libdrm_nouveau.a']
+		return linkflags
+
+	def ldflags(self):
+		# NOTE: shared libraries should be built without standard libs, so that they could import their contents from the NRO,
+		# but executables, including the SDL2 sanity check, will generally require libstdc++ and libm, which we will add manually
+		ldflags = [] # ['-lm', '-lstdc++']
+		return ldflags
+
 def options(opt):
-	android = opt.add_option_group('Android options')
-	android.add_option('--android', action='store', dest='ANDROID_OPTS', default=None,
+	xc = opt.add_option_group('Cross compile options')
+	xc.add_option('--android', action='store', dest='ANDROID_OPTS', default=None,
 		help='enable building for android, format: --android=<arch>,<toolchain>,<api>, example: --android=armeabi-v7a-hard,4.9,9')
-
-	magx = opt.add_option_group('MotoMAGX options')
-	magx.add_option('--enable-magx', action = 'store_true', dest = 'MAGX', default = False,
-		help = 'enable targetting for MotoMAGX phones [default: %default]')
+	xc.add_option('--enable-magx', action='store_true', dest='MAGX', default=False,
+		help='enable building for Motorola MAGX [default: %default]')
+	xc.add_option('--enable-msvc-wine', action='store_true', dest='MSVC_WINE', default=False,
+		help='enable building with MSVC using Wine [default: %default]')
+	xc.add_option('--nswitch', action='store_true', dest='NSWITCH', default = False,
+		help ='enable building for Nintendo Switch [default: %default]')
 
 def configure(conf):
 	if conf.options.ANDROID_OPTS:
@@ -389,18 +477,42 @@ def configure(conf):
 		conf.msg('... C/C++ flags', ' '.join(android.cflags()).replace(android.ndk_home, '$NDK/'))
 		conf.msg('... link flags', ' '.join(android.linkflags()).replace(android.ndk_home, '$NDK/'))
 		conf.msg('... ld flags', ' '.join(android.ldflags()).replace(android.ndk_home, '$NDK/'))
-
-		# conf.env.ANDROID_OPTS = android
-		conf.env.DEST_OS2 = 'android'
 	elif conf.options.MAGX:
 		# useless to change toolchain path, as toolchain meant to be placed in this path
 		toolchain_path = '/opt/toolchains/motomagx/arm-eabi2/lib/'
 		conf.env.INCLUDES_MAGX = [toolchain_path + i for i in ['ezx-z6/include', 'qt-2.3.8/include']]
 		conf.env.LIBPATH_MAGX  = [toolchain_path + i for i in ['ezx-z6/lib', 'qt-2.3.8/lib']]
 		conf.env.LINKFLAGS_MAGX = ['-Wl,-rpath-link=' + i for i in conf.env.LIBPATH_MAGX]
+	elif conf.options.MSVC_WINE:
+		try:
+			toolchain_path = conf.environ['MSVC_WINE_PATH']
+		except KeyError:
+			conf.fatal('Set MSVC_WINE_PATH environment variable to the MSVC toolchain root!')
+
+		conf.environ['CC'] = conf.environ['CXX'] = os.path.join(toolchain_path, 'bin', conf.env.MSVC_TARGETS[0], 'cl')
+		conf.environ['LINK_CXX'] = os.path.join(toolchain_path, 'bin', conf.env.MSVC_TARGETS[0], 'link')
+		conf.environ['AR'] = os.path.join(toolchain_path, 'bin', conf.env.MSVC_TARGETS[0], 'lib')
+		conf.environ['WINRC'] = os.path.join(toolchain_path, 'bin', conf.env.MSVC_TARGETS[0], 'rc')
+		conf.env.DEST_OS = 'win32'
+		conf.env.DEST_CPU = conf.env.MSVC_TARGETS[0]
+		conf.env.COMPILER_CXX = conf.env.COMPILER_CC = 'msvc'
+	elif conf.options.NSWITCH:
+		conf.nswitch = nswitch = NintendoSwitch(conf)
+		conf.environ['CC'] = nswitch.cc()
+		conf.environ['CXX'] = nswitch.cxx()
+		conf.environ['STRIP'] = nswitch.strip()
+		conf.env.PKGCONFIG = nswitch.pkgconfig()
+		conf.env.CFLAGS += nswitch.cflags()
+		conf.env.CXXFLAGS += nswitch.cflags(True)
+		conf.env.LINKFLAGS += nswitch.linkflags()
+		conf.env.LDFLAGS += nswitch.ldflags()
+		conf.env.HAVE_M = True
+		conf.env.LIB_M = ['m']
+		conf.env.DEST_OS = 'nswitch'
 
 	conf.env.MAGX = conf.options.MAGX
-	MACRO_TO_DESTOS = OrderedDict({ '__ANDROID__' : 'android' })
+	conf.env.MSVC_WINE = conf.options.MSVC_WINE
+	MACRO_TO_DESTOS = OrderedDict({ '__ANDROID__' : 'android', '__SWITCH__' : 'nswitch' })
 	for k in c_config.MACRO_TO_DESTOS:
 		MACRO_TO_DESTOS[k] = c_config.MACRO_TO_DESTOS[k] # ordering is important
 	c_config.MACRO_TO_DESTOS  = MACRO_TO_DESTOS
@@ -433,11 +545,17 @@ compiler_cxx_configure = getattr(compiler_cxx, 'configure')
 compiler_c_configure = getattr(compiler_c, 'configure')
 
 def patch_compiler_cxx_configure(conf):
-	compiler_cxx_configure(conf)
+	if not conf.env.MSVC_WINE:
+		compiler_cxx_configure(conf)
+	else:
+		conf.load('msvc', funs='no_autodetect')
 	post_compiler_cxx_configure(conf)
 
 def patch_compiler_c_configure(conf):
-	compiler_c_configure(conf)
+	if not conf.env.MSVC_WINE:
+		compiler_c_configure(conf)
+	else:
+		conf.load('msvc', funs='no_autodetect')
 	post_compiler_c_configure(conf)
 
 setattr(compiler_cxx, 'configure', patch_compiler_cxx_configure)

wscript

@@ -74,8 +74,10 @@ def configure(conf):
 	conf.load('msvs msdev strip_on_install')
 
 	if conf.env.DEST_OS == 'android':
-		conf.options.GOLDSRC = False
+		conf.options.GOLDSRC = conf.env.GOLDSRC = False
 		conf.env.SERVER_NAME = 'server' # can't be any other name, until specified
+	elif conf.env.DEST_OS == 'nswitch':
+		conf.options.GOLDSRC = conf.env.GOLDSRC = False
 	
 	if conf.env.MAGX:
 		enforce_pic = False
@@ -148,6 +150,13 @@ def configure(conf):
 		cflags += conf.filter_cflags(compiler_optional_flags + c_compiler_optional_flags, cflags)
 		cxxflags += conf.filter_cxxflags(compiler_optional_flags, cflags)
 
+	# on the Switch, allow undefined symbols by default, which is needed for libsolder to work
+	# additionally, shared libs are linked without libc
+	if conf.env.DEST_OS == 'nswitch':
+		linkflags.remove('-Wl,--no-undefined')
+		conf.env.append_unique('LINKFLAGS_cshlib', ['-nostdlib', '-nostartfiles'])
+		conf.env.append_unique('LINKFLAGS_cxxshlib', ['-nostdlib', '-nostartfiles'])
+
 	conf.env.append_unique('CFLAGS', cflags)
 	conf.env.append_unique('CXXFLAGS', cxxflags)
 	conf.env.append_unique('LINKFLAGS', linkflags)