miscellaneous uClibc / uClibc-ng stuff (configs, wrappers, etc.)
initially a simple static-only config for uClibc-ng 1.0.x
uclibc-ng-gcc and uclibc-ng-gcc.spec GCC wrappers based on musl-libc's implementations
centos 7 may need locale bits installed, particularly on armhf/aarch64 docker containers
localedef -i en_US -f UTF-8 en_US.UTF-8
/usr/include/asm->/usr/local/uclibc-ng/include/usr/include/asm-generic->/usr/local/uclibc-ng/include/usr/include/linux->/usr/local/uclibc-ng/include/usr/include/mtd->/usr/local/uclibc-ng/include
/usr/include/asm-generic->/usr/include/arm-linux-gnueabihf/asm-generic/usr/include/linux->/usr/include/arm-linux-gnueabihf/linux/usr/include/asm-generic->/usr/include/asm
or(?)
/usr/include/arm-linux-gnueabihf/asm->/usr/include/asm
for busybox, /usr/local/uclibc-ng/include/asm definitely needs to point at /usr/include/arm-linux-gnueabihf/asm
for gcc, some include-fixed headers need to be symlinked in, like so:
cat > /tmp/gnuc.c << EOF
#include <stdio.h>
int main(void)
{
printf("%d.%d\n", __GNUC__, __GNUC_MINOR__);
return(0);
}
EOF
gcc /tmp/gnuc.c -o /tmp/gnuc
gccv="$(/tmp/gnuc)"
# or this if you don't want to test the compiler:
# gccv="$(gcc --version | head -1 | awk '{print $NF}' | cut -f1,2 -d.)"
gcct="$(gcc --verbose 2>&1 | tr -d ' ' | awk -F: '/^Target/{print $NF}')"
gccd="/usr/lib/gcc/${gcct}/${gccv}"
for gcch in ${gccd}/include-fixed/*.h ; do
test -e ${gccd}/include/$(basename ${gcch}) || {
sudo ln -s ${gcch} ${gccd}/include
}
done
are all of these raspbian-specific, do they apply to debian/ubuntu/...? use the package system instead? yocto/poky is probably a better choice for clean builds. crosstool-ng is probably a better choice for a decoupled compiler.
make \
-j$(($(nproc)*2+1)) \
install \
CPU_CFLAGS="-I/usr/src/linux-headers-4.19.69-rockchip/arch/arm/include \
-I/usr/src/linux-headers-4.19.69-rockchip/arch/arm/include/generated/uapi \
-I/usr/src/linux-headers-4.19.69-rockchip/arch/arm/include/generated \
-I/usr/src/linux-headers-4.19.69-rockchip/include/generated/uapi \
-I/usr/src/linux-headers-4.19.69-rockchip/include/uapi \
-I/usr/src/linux-headers-4.19.69-rockchip/arch/arm/include/uapi \
-I/usr/src/linux-headers-4.19.69-rockchip/include"
make \
-j$(($(nproc)*2+1)) \
install \
CPU_CFLAGS="-I/usr/src/linux-headers-4.4.77-rk3328/include/generated/uapi \
-I/usr/src/linux-headers-4.4.77-rk3328/include/uapi \
-I/usr/src/linux-headers-4.4.77-rk3328/include"
- figure out proper
KERNEL_HEADERSsetting for arm/aarch64
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