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[cmake, docs] Reorganize CMakeModules directory and add GentooCross toolchain (#4088)

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Lightly inspired by my earlier toolchain and writeup from the PowerPC
PR.

Closes #3793

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4088
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
This commit is contained in:
crueter 2026-06-16 16:15:49 +02:00
parent c8c61a12c3
commit 02eaf3c5a7
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GPG key ID: 425ACD2D4830EBC6
19 changed files with 141 additions and 77 deletions
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39
CMakeModules/toolchains/GentooCross.cmake Normal file
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# SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
# SPDX-License-Identifier: GPL-3.0-or-later
set(CROSS_TARGET "" CACHE STRING "Cross-compilation target (aarch64, etc)")
set(CROSS_PLATFORM "unknown-linux-gnu" CACHE STRING "Cross-compilation platform (e.g. unknown-linux-gnu)")
set(CROSS_COMPILER "gcc" CACHE STRING "Cross compiler type (gcc or clang)")
if (NOT CROSS_TARGET)
message(FATAL_ERROR "GentooCross used without a valid CROSS_TARGET")
endif()
set(prefix ${CROSS_TARGET}-${CROSS_PLATFORM})
set(CMAKE_SYSROOT /usr/${prefix})
if (CROSS_COMPILER STREQUAL "gcc")
set(CMAKE_C_COMPILER ${prefix}-gcc)
set(CMAKE_CXX_COMPILER ${prefix}-g++)
elseif (CROSS_COMPILER STREQUAL "clang")
set(CMAKE_C_COMPILER ${prefix}-clang)
set(CMAKE_CXX_COMPILER ${prefix}-clang++)
else()
message(FATAL_ERROR "Unsupported cross compiler type ${CROSS_COMPILER}")
endif()
# search programs in the host environment
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# search headers and libraries in the target environment
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
# sanity checks
if (NOT IS_DIRECTORY ${CMAKE_SYSROOT})
message(FATAL_ERROR "Invalid sysroot ${CMAKE_SYSROOT}."
"Double-check your CROSS_TARGET and CROSS_PLATFORM.")
endif()