[port] initial proof-of-concept PlayStation 4 port

Signed-off-by: lizzie <lizzie@eden-emu.dev>

.ci/ps4/build.sh

@@ -0,0 +1,52 @@
+#!/usr/local/bin/bash -ex
+
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+cat << EOF >"ps4-toolchain.cmake"
+set(CMAKE_SYSROOT "$OO_PS4_TOOLCHAIN")
+
+set(CMAKE_C_FLAGS "--target=x86_64-pc-freebsd12-elf -funwind-tables -fuse-ld=ldd")
+set(CMAKE_CXX_FLAGS "--target=x86_64-pc-freebsd12-elf -funwind-tables -fuse-ld=lld")
+
+set(CMAKE_EXE_LINKER_FLAGS "-m elf_x86_64 -pie --script $OO_PS4_TOOLCHAIN/link.x --eh-frame-hdr -L$OO_PS4_TOOLCHAIN/lib -lc -lkernel -lc++ -lSceUserService -lSceVideoOut -lSceAudioOut -lScePad -lSceSysmodule -lSceFreeType $OO_PS4_TOOLCHAIN/lib/crt1.o")
+set(CMAKE_C_LINK_FLAGS "-m elf_x86_64 -pie --script $OO_PS4_TOOLCHAIN/link.x --eh-frame-hdr -L$OO_PS4_TOOLCHAIN/lib -lc -lkernel -lSceUserService -lSceVideoOut -lSceAudioOut -lScePad -lSceSysmodule -lSceFreeType $OO_PS4_TOOLCHAIN/lib/crt1.o")
+set(CMAKE_CXX_LINK_FLAGS "-m elf_x86_64 -pie --script $OO_PS4_TOOLCHAIN/link.x --eh-frame-hdr -L$OO_PS4_TOOLCHAIN/lib -lc -lkernel -lc++ -lSceUserService -lSceVideoOut -lSceAudioOut -lScePad -lSceSysmodule -lSceFreeType $OO_PS4_TOOLCHAIN/lib/crt1.o")
+
+set(CMAKE_C_COMPILER clang)
+set(CMAKE_CXX_COMPILER clang++)
+set(CMAKE_LINKER ld.lld)
+set(CMAKE_C_LINK_EXECUTABLE "<CMAKE_LINKER> <CMAKE_CXX_LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
+set(CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_LINKER> <CMAKE_CXX_LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+EOF
+
+export ARCH_FLAGS="$ARCH_FLAGS -O3"
+if [ -z "$NPROC" ]; then
+    NPROC="$(nproc)"
+fi
+
+# Normally a platform has a package manager
+# PS4 does not, atleast not in the normal sense
+export EXTRA_CMAKE_FLAGS=("${EXTRA_CMAKE_FLAGS[@]}" $@)
+mkdir -p build
+cd build && cmake .. -G Ninja \
+    -DCMAKE_TOOLCHAIN_FILE="ps4-toolchain.cmake" \
+    -DENABLE_QT_TRANSLATION=OFF \
+    -DUSE_DISCORD_PRESENCE=OFF \
+    -DENABLE_CUBEB=OFF \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_CXX_FLAGS="$ARCH_FLAGS" \
+    -DCMAKE_C_FLAGS="$ARCH_FLAGS" \
+    -DENABLE_SDL2=OFF \
+    -DENABLE_QT=OFF \
+    -DENABLE_OPENSSL=OFF \
+    -DCPMUTIL_FORCE_BUNDLED=ON \
+    -DYUZU_USE_CPM=ON \
+    "${EXTRA_CMAKE_FLAGS[@]}" || exit
+
+cd build && ninja -j${NPROC} || exit

.gitignore

@@ -61,3 +61,6 @@ artifacts
 *.AppImage*
 /install*
 vulkansdk*.exe
+
+# PS4 toolchain stuff
+ps4-toolchain.cmake

docs/Caveats.md

@@ -197,3 +197,10 @@ Install [Qt6 compatibility libraries](github.com/ANightly/qt6windows7) specifica
 The package install may randomly hang at times, in which case it has to be restarted. ALWAYS do a `sudo pkg update` or the chances of it hanging will be close to 90%. If "multiple" installs fail at once, try installing 1 by 1 the packages.
 
 When CMake invokes certain file syscalls - it may sometimes cause crashes or corruptions on the (kernel?) address space - so reboot the system if there is a "hang" in CMake.
+
+## PlayStation 4 (OpenOrbis cross compile)
+
+```sh
+export OO_PS4_TOOLCHAIN="$HOME/OpenOrbis/PS4Toolchain"
+export DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
+```