Compile LEDE v17.01.4 for Mikrotik MetaROUTER (MIPS only)

006-glibc-conflict.patch

--- a/misc/create_inode.c	2016-09-02 04:17:32.000000000 +0000
+++ b/misc/create_inode.c	2020-01-04 20:56:26.150590109 +0000
@@ -392,7 +392,7 @@
 }
 #endif /* !defined HAVE_PREAD64 && !defined HAVE_PREAD */
 
-static errcode_t copy_file_range(ext2_filsys fs, int fd, ext2_file_t e2_file,
+static errcode_t copy_file_chunk(ext2_filsys fs, int fd, ext2_file_t e2_file,
 				 off_t start, off_t end, char *buf,
 				 char *zerobuf)
 {
@@ -466,7 +466,7 @@
 
 		data_blk = data & ~(fs->blocksize - 1);
 		hole_blk = (hole + (fs->blocksize - 1)) & ~(fs->blocksize - 1);
-		err = copy_file_range(fs, fd, e2_file, data_blk, hole_blk, buf,
+		err = copy_file_chunk(fs, fd, e2_file, data_blk, hole_blk, buf,
 				      zerobuf);
 		if (err)
 			return err;
@@ -516,7 +516,7 @@
 		}
 		for (i = 0, ext = ext_buf; i < fiemap_buf->fm_mapped_extents;
 		     i++, ext++) {
-			err = copy_file_range(fs, fd, e2_file, ext->fe_logical,
+			err = copy_file_chunk(fs, fd, e2_file, ext->fe_logical,
 					      ext->fe_logical + ext->fe_length,
 					      buf, zerobuf);
 			if (err)
@@ -569,7 +569,7 @@
 		goto out;
 #endif
 
-	err = copy_file_range(fs, fd, e2_file, 0, statbuf->st_size, buf,
+	err = copy_file_chunk(fs, fd, e2_file, 0, statbuf->st_size, buf,
 			      zerobuf);
 out:
 	ext2fs_free_mem(&zerobuf);

README.md

Compile LEDE v17.01.4 for Mikrotik MetaROUTER

Steps

1. Prepare virtual machine: Install VirtualBox, download Ubuntu ISO image, and install it.

   Add current user to sudoers list

   echo "$USER ALL=(ALL) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/10-$USER > /dev/null
   # re-login after

   Don't forget to install VirtualBox Additions

   sudo apt-get update
   sudo apt-get upgrade
   sudo apt-get install -y build-essential dkms linux-headers-$(uname -r)
   sudo mount /dev/sr0 /media
   sudo /media/VBoxLinuxAdditions.run
   sudo umount /media

   Optionally, mount VirtualBox shared folder

   mkdir $HOME/projects
   echo "projects /home/$USER/projects vboxsf uid=1000,gid=1000,dmode=755,fmode=755,noauto 0 0" | sudo tee -a /etc/fstab > /dev/null
   mount projects

   Optionally, disable hugepages

   cat << 'EOF' | sudo tee /etc/rc.local > /dev/null
   #!/bin/sh
   if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
     echo never > /sys/kernel/mm/transparent_hugepage/enabled
   fi
   if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
     echo never > /sys/kernel/mm/transparent_hugepage/defrag
   fi
   exit 0
   EOF
   sudo chown root:root /etc/rc.local
   sudo chmod 644 /etc/rc.local

   Optionally, disable timers

   sudo systemctl list-timers --all
   sudo systemctl stop motd-news.timer
   sudo systemctl disable motd-news.timer
   sudo systemctl stop apt-daily-upgrade.timer
   sudo systemctl disable apt-daily-upgrade.timer
   sudo systemctl stop apt-daily.timer
   sudo systemctl disable apt-daily.timer
   sudo systemctl daemon-reload

2. Prepare environment: Install required packages

   sudo apt-get install -y subversion git libncurses5-dev zlib1g-dev gawk ccache gettext libssl-dev xsltproc zip python-pip

3. Prepare build system: Git clone

   Fetch OpenWRT source code

   git clone https://git.openwrt.org/openwrt/openwrt.git
   cd openwrt
   git fetch --tags
   git checkout v17.01.4
   git cherry-pick eaf6f1532d78cff68153298334e9b3e513b407ed # nftables: Update to 0.7
   git cherry-pick 74395d97a9d47f1cf8afa4bb6b2f90120072489e # libs/libnftnl: Update to 1.0.7

4. Prepare build system: Add e2fsprogs patch

   Save included 006-glibc-conflict.patch as tools/e2fsprogs/patches/006-glibc-conflict.patch

   curl -fsSL https://gist.githubusercontent.com/avoidik/b15ef6dd5fb20bf59a5d6a0347034244/raw/96048f2590cb6c65d5522b3118536b00713ae96c/006-glibc-conflict.patch -o tools/e2fsprogs/patches/006-glibc-conflict.patch

5. Prepare build system: Prepare device branch & build system dependencies

   git clone https://github.com/cuihaoleo/lede-mr-mips target/linux/mr-mips
   make defconfig
   make prereq
   cp target/linux/mr-mips/misc/lede-config .config
   make oldconfig # or make menuconfig

   Prepare tools

   make download
   make tools/install
   make toolchain/install

6. Build

   make -j $(nproc)

   In case of an error

   make -j1 V=s

   The resulting files will be available in bin/targets/mr-mips/generic/ folder

Build packages

./scripts/feeds update -a
./scripts/feeds install dnsmasq dnscrypt-proxy

Or replace latter to install all available packages

./scripts/feeds install -a

This may change .config file, just run make menuconfig and save

Build single package

Install tools & toolchain first

# build nano package - https://openwrt.org/packages/pkgdata/nano
make package/base-files/compile
make package/base-files/install
make package/ncurses/compile
make package/ncurses/install
make package/nano/compile
make package/nano/install
make package/index

Build kernel modules

Install tools & toolchain first

make menuconfig # set kernel modules
make target/linux/compile
make package/kernel/linux/compile
make package/kernel/linux/install