Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

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23 pmbaty 1 
@echo off
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setlocal enableextensions enabledelayedexpansion
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rem // set the WSL distribution to use
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set WSL_DISTR=Ubuntu-22.04
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rem // list of Linux tools required by the cross-build script
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set REQUIRED_TOOLS=wget python3 cmake gcc g++ ninja:ninja-build ccache
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rem // make sure we have at least Windows 10
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for /f "tokens=4 delims=. " %%i in ('ver') do set VERSION=%%i
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echo Detected Windows NT kernel version: %VERSION%
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if %VERSION% LSS 10 (
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        echo Error: you need at least Windows 10 to cross-build LLVM to QNX 8.
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        echo Please upgrade your Windows operating system to Windows 10 version 2004 build
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        echo 19041 or a later version.
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        goto :exit_error
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)
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rem // if WSL is not installed, do so
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echo Checking WSL presence...
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wsl --list -v > nul 2>&1 || goto :install_wsl
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echo The Windows Subsystem for Linux is installed
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rem // WSL is installed, make sure the Linux distribution we need is there
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echo Checking for the presence of %WSL_DISTR% in WSL...
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wsl --distribution %WSL_DISTR% -- cat /etc/os-release|find "%WSL_DISTR:-= %" > nul || goto :install_wsl
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echo The GNU/Linux distribution %WSL_DISTR% is present
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rem // WSL is installed, make sure it's running WSL2
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echo Checking WSL hypervisor version...
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wsl --distribution %WSL_DISTR% -- cat /proc/version|find "WSL2" > nul || (
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        echo This WSL distribution %WSL_DISTR% needs to be converted to WSL2.
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        rem // this distribution needs to be converted
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        wsl --set-version %WSL_DISTR% 2 || (
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                echo Error: you need the Windows Subsystem for Linux to support WSL2 for this
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                echo cross-build script to work consistently.
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                echo Please upgrade your Windows operating system to Windows 10 version 2004 build
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                echo 19041 or a later version.
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                goto :exit_error
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        )
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        rem // alright, this distribution is on WSL2
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)
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echo The Windows Subsystem for Linux is version 2.
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rem // make sure we have the required tools, install them if not
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set APT_CACHE_UPDATED=0
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for %%i in (%REQUIRED_TOOLS%) do (
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        rem // tool syntax: "<executable>:<optional APT package name>"
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        rem // if package name is not specified, it defaults to <executable>
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        set REQUIRED_TOOL_AND_PACKAGE=%%i
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        for /f "tokens=1-2 delims=:" %%j in ('echo !REQUIRED_TOOL_AND_PACKAGE!') do (
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                set REQUIRED_TOOL=%%j
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                set REQUIRED_PACKAGE=%%k
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                if "!REQUIRED_PACKAGE!"=="" set REQUIRED_PACKAGE=!REQUIRED_TOOL!
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        )
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        echo Checking for the presence of !REQUIRED_TOOL! from APT package !REQUIRED_PACKAGE!...
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        wsl --distribution %WSL_DISTR% -- !REQUIRED_TOOL! --version > nul 2>&1 && (
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                echo !REQUIRED_TOOL! is available.
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        ) || (
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                echo !REQUIRED_TOOL! needs installation. Attempting to install it.
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                if "!APT_CACHE_UPDATED!"=="0" (
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                        rem // allow ourselves to run any commands by patching /etc/sudoers. Do this once.
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                        wsl --distribution %WSL_DISTR% -- sudo sh -c ^"echo '%%sudo  ALL=^(ALL^) NOPASSWD:ALL' ^>^> /etc/sudoers^"
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                        rem // update APT cache before installing stuff, but just once.
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                        wsl --distribution %WSL_DISTR% -- sudo apt-get -y update
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                        set APT_CACHE_UPDATED=1
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                )
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                wsl --distribution %WSL_DISTR% sudo apt-get -y install !REQUIRED_PACKAGE! || (
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                        echo Error: the required Linux tool !REQUIRED_TOOL! can't be installed with apt-get.
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                        pause
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                        goto :exit_error
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                )
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        )
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)
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rem // set the QNX8 SDP build environment, deploying the toolchain symlinks if necessary
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set THISDIR=%CD%
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cd ..\qnx800
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call qnxsdp-env.bat || goto :exit_error
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cd "%THISDIR%"
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24 pmbaty 84 
rem // TODO: a possible way to accelerate the build would be to copy $QNX_HOST and $QNX_TARGET into the WSL2 filesystem
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rem // instead of having the GCC compiler continuously cross the bridge back and forth between NTFS and ext4.
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rem // But hey. Let's see if the current way of doing things is acceptable first.
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23 pmbaty 88 
rem // now run WSL from this directory and chain-call the POSIX Bourne shell build script
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wsl --distribution %WSL_DISTR% -- ./cross-build.sh || goto :exit_error
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rem // at this point, the story is supposed to have ended well.
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rem // Keep calm, and I'll tell you another one tomorrow.
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goto :exit_success
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:install_wsl
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        echo Installing the Windows Subsystem for Linux...
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        echo ############################################################################
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        echo # NOTE: please define a *non-root* Linux user name and password when asked #
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        echo #       ^(for example: 'utilisateur' / 'utilisateur'^)                       #
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        echo #       then type 'exit' at the Linux shell ^(green prompt^) to continue.    #
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        echo ############################################################################
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        wsl --install --distribution %WSL_DISTR% || (
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                echo Error: you need at least a version of Windows 10 which has the "wsl" command.
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                echo Please upgrade your Windows operating system to Windows 10 version 2004 build
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                echo 19041 or a later version.
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                goto :exit_error
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        )
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        echo The Windows Subsystem for Linux was successfully installed with the default
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        echo distribution.
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        echo Action required: please reboot your computer and run this script again.
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        pause
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        goto :exit_success
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:exit_error
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rem // failure exit
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pause
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exit /b 1
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:exit_success
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rem // successful exit
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exit /b 0