QNAP [ MUSL ToolChain/Framework ] [ 11.1 formely 1.2.2 ] Add MUSL Cross tools & Framework

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source : https://wiki.musl-libc.org

Download :

MUSL Framework - MyQNAP

MUSL ToolChain/Framework Get rid of the glibc and use Alpine Linux Framework, execute any binary or cross compilation based on Alpine Linux. Add MUSL Cross tools & Framework to have a compatible MUSL ELF on your NAS install on your NAS the MUSL Cross toolchain built with crosstool-ng it allow to...

www.myqnap.org

install on your NAS the MUSL Cross toolchain built with crosstool-ng

it allow to compile directly on your NAS with GCC 11.1 (only on a NAS x86_64 Intel/amd).. other compilaton tools are also embedded (make, autoconf, bison, libtool...)
because musl run under another ELF this package needs to be installed on NAS to execute the cross compiled application

on x86_64 NAS, it modify .profile of your /root (admin session in SSH) and export necessary FLAG to compile

HOST=x86_64-QNAP_-linux-musl
export HOST
TOOLCHAIN_PATH=/root/x-tools/x86_64-QNAP_-linux-musl
export TOOLCHAIN_PATH
PATH=$PATH:$HOME/bin:${TOOLCHAIN_PATH}/bin:${TOOLCHAIN_PATH}/x86_64-QNAP_-linux-musl/bin
export PATH

call $HOST in your autoconf source will call all necessary toolcahin artefacts

exemple for openssl $PREFIX location should be exported first (location where source will compiled)

PKG_CONFIG_PATH="${PREFIX}/lib/pkgconfig" \
CFLAGS="-O2 -I${PREFIX}/include" \
CXXFLAGS="-O2 -I${PREFIX}/include" \
LDFLAGS="-L${PREFIX}/lib -Wl,-rpath,${PREFIX}/lib -Wl,-rpath,/root/x-tools/x86_64-QNAP_-linux-musl/lib -Wl,-rpath,/root/x-tools/x86_64-QNAP_-linux-musl/x86_64-QNAP_-linux-musl/lib64 -Wl,--dynamic-linker=/root/x-tools/x86_64-QNAP_-linux-musl/x86_64-QNAP_-linux-musl/sysroot/lib/ld-musl-x86_64.so.1" \
CPPLFAGS="-O2 -I${PREFIX}/include" \
FFLAGS="-O2 -I${PREFIX}/include" \
./Configure "-L${PREFIX}/lib -Wl,-rpath,${PREFIX}/lib -Wl,-rpath,${PREFIX}/lib -Wl,-rpath,/root/x-tools/x86_64-QNAP_-linux-musl/lib -Wl,-rpath,/root/x-tools/x86_64-QNAP_-linux-musl/x86_64-QNAP_-linux-musl/lib64 -Wl,--dynamic-linker=/root/x-tools/x86_64-QNAP_-linux-musl/x86_64-QNAP_-linux-musl/sysroot/lib/ld-musl-x86_64.so.1" "-I${PREFIX}/include" --prefix=${PREFIX} --openssldir=/etc/ssl --cross-compile-prefix=${HOST}- enable-tls1_3 shared no-zlib linux-x86_64

make -j$(nproc) && make install

here i added a dynamic linker to be sure source will go pick the right ld location...

NOTE

not sure Compiled on NAS directly is right solution, (should miss many thing) but you can download my MUSL ToolChains on an Ubuntu and extract it in side /root
personnlay i am using an ubuntu LXC x86_64 to do it

https://mega.nz/file/hgBjFAhZ#zU3zg-dRk1UesRwzQw2PlpWZh9djZcVrSWz2_e-F9m4

next create in root a .bash_profile with inside

HOST=x86_64-QNAP_-linux-musl
export HOST
TOOLCHAIN_PATH=/root/x-tools/x86_64-QNAP_-linux-musl
export TOOLCHAIN_PATH
PATH=$PATH:$HOME/bin:${TOOLCHAIN_PATH}/bin:${TOOLCHAIN_PATH}/x86_64-QNAP_-linux-musl/bin
export PATH

and restart your SSH to make change apply to the current session

other toolchain for aarch64 , arm, x86 (32bit intel) are also available you just need modify path to be able to cross compile for this architecture

to run a cross compiled application, MUSL must be installed on host NAS to be able to execute the right ELF

 

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updated to 11.1

GCC 11.1
MUSL Core to 1.2.2
fixed for ARMv7 (wrong symlinking)
updated to latest libs, headers and companion tool