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https://github.com/hrydgard/ppsspp.git
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Henrik RydgårdandClaude Opus 5
9a29bf84d8
The pieces were nearly all in place already - CMakeLists has detected riscv64 and set RISCV64 since the backend landed - so this is mostly a matter of not hardcoding loongarch64 in the cross-build plumbing: - setup-loongarch64-cross.sh becomes setup-cross.sh <target>, taking the triple and dynamic linker name from the argument. - b.sh gains --riscv64, and the GL stub block is keyed off a compiler variable rather than a loongarch64-only flag. - New cmake/Toolchains/riscv64-linux-gnu.cmake, mirroring the existing one. The SDL carve-out moves from LOONGARCH64_DEVICE to a new HEADLESS_CROSS option set by b.sh. That flag was keyed off the target architecture, which is also true when building natively on such a machine - harmless so far, but riscv64 hardware that people actually build PPSSPP on exists, and it should still get the normal SDL frontend. Both toolchain files now find qemu rather than assuming the static build: Debian ships the static binaries in qemu-user-static and the dynamic ones in qemu-user, and only the latter is available on some releases. Neither being present is fine too - it just means no compile-check programs run. Verified by a clean loongarch64 build; riscv64 is untested so far, the toolchain isn't installed here yet. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
45 lines
1.9 KiB
CMake
45 lines
1.9 KiB
CMake
set(CMAKE_SYSTEM_NAME Linux)
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set(CMAKE_SYSTEM_PROCESSOR riscv64)
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set(CMAKE_C_COMPILER riscv64-linux-gnu-gcc-14)
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set(CMAKE_CXX_COMPILER riscv64-linux-gnu-g++-14)
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set(CMAKE_ASM_COMPILER riscv64-linux-gnu-gcc-14)
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set(CMAKE_FIND_ROOT_PATH /usr/riscv64-linux-gnu)
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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# No X11 in the sysroot; disable the X11 Vulkan path to avoid include-dir errors.
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set(USING_X11_VULKAN OFF CACHE BOOL "" FORCE)
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# Use legacy GL preference so find_package(OpenGL) looks for a single libGL.so
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# rather than the GLVND split (libOpenGL.so + libGLX.so), which we don't have.
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# A stub libGL.so + GL headers must be present in the sysroot; they are placed
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# there by cmake/scripts/setup-cross.sh (run once with sudo, or automatically
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# by the CI install step).
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set(OpenGL_GL_PREFERENCE LEGACY CACHE STRING "" FORCE)
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# b.sh also creates a stub in <build-dir>/stublibs/ as a local fallback so the
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# linker can resolve GL/GLX calls from GLEW's static archive via PLT entries.
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set(CMAKE_EXE_LINKER_FLAGS
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"${CMAKE_EXE_LINKER_FLAGS} -L${CMAKE_BINARY_DIR}/stublibs"
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CACHE STRING "" FORCE)
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# Allow CMake's compile-check programs to run via QEMU, if it's installed.
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# Debian/Ubuntu ship the static binaries in qemu-user-static and the dynamic
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# ones in qemu-user; either will do, so take whichever is present.
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find_program(QEMU_RISCV64 NAMES qemu-riscv64-static qemu-riscv64)
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if(QEMU_RISCV64)
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# The /lib64 symlink is created by the setup script; without it, pass -L
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# explicitly so QEMU can find the riscv64 dynamic linker.
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if(EXISTS "/lib64/ld-linux-riscv64-lp64d.so.1")
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set(CMAKE_CROSSCOMPILING_EMULATOR "${QEMU_RISCV64}" CACHE STRING "" FORCE)
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else()
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set(CMAKE_CROSSCOMPILING_EMULATOR
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"${QEMU_RISCV64};-L;/usr/riscv64-linux-gnu"
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CACHE STRING "" FORCE)
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endif()
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endif()
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