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https://github.com/ioacademy-jikim/debugging
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112 lines
4.3 KiB
Plaintext
112 lines
4.3 KiB
Plaintext
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How to install and configure a QEMU mips64-linux installation.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Last updated 04 May 2015
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This gives an apparently stable, but extremely slow, mips64-linux
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install. It has the advantage that the idle loop works right and so
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when the guest becomes idle, qemu uses only very little host cpu, so
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you can leave the guest idling for long periods without bad
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performance effects on the host.
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More or less following
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https://gmplib.org/~tege/qemu.html section 8 (for mips64)
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Build qemu-2.2.1 with --target-list including mips64-softmmu
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mkdir Mips64-1
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cd Mips64-1
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wget ftp://ftp.sunet.se/pub/Linux/distributions/debian/dists/wheezy/main/installer-mips/current/images/malta/netboot/vmlinux-3.2.0-4-4kc-malta
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wget ftp://ftp.sunet.se/pub/Linux/distributions/debian/dists/wheezy/main/installer-mips/current/images/malta/netboot/initrd.gz
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md5sum initrd.gz vmlinux-3.2.0-4-4kc-malta
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71f05a4aaf24671fa72e903abd76a448 initrd.gz
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307fc61d36cb370ea2b697d587af45a6 vmlinux-3.2.0-4-4kc-malta
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# Note. 4G is easily enough to install debian and do a build of Valgrind.
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# If you envisage needing more space, now is the time to choose a larger
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# number.
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/path/to/Qemu221/bin/qemu-img create disk4G.img 4G
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/path/to/Qemu221/bin/qemu-system-mips64 \
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-M malta -cpu 5Kc -m 256 -hda disk4G.img \
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-net nic,macaddr=52:54:00:fa:ce:08 -net user,hostfwd=tcp::5555-:22 \
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-kernel vmlinux-3.2.0-4-4kc-malta -initrd initrd.img-3.2.0-4-4kc-malta \
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-append "root=/dev/sda1 console=ttyS0 --" -nographic
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Do an install, be as vanilla as possible, allow it to create a user
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"username", and do not ask it to install any extra software. But,
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when you get to here
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┌───────────────────┤ [!!] Finish the installation ├────────────────────┐
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│ │
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┌│ Installation complete │
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││ Installation is complete, so it is time to boot into your new system. │
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││ Make sure to remove the installation media (CD-ROM, floppies), so │
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││ that you boot into the new system rather than restarting the │
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││ installation. │
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││ │
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└│ <Go Back> <Continue> │
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│ │
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└───────────────────────────────────────────────────────────────────────┘
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do "Go Back"
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then in the next menu "Execute a shell", "Continue"
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This gives you a root shell in the new VM. In that shell:
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mount -t proc proc /target/proc
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mount --rbind /sys /target/sys
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mount --rbind /dev /target/dev
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chroot /target bash
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/etc/init.d/ssh start
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ls /boot
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System.map-3.2.0-4-5kc-malta initrd.img-3.2.0-4-5kc-malta
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config-3.2.0-4-5kc-malta vmlinux-3.2.0-4-5kc-malta
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Then on the host, copy out the vmlinux and initrd:
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ssh -p 5555 username@localhost \
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"tar -c -f - --exclude=lost+found /boot" | tar xf -
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exit
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exit
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Select "Finish the installation"
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Continue
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When it reboots, kill qemu from another shell, else it will try to reinstall.
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Now start the installation:
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/path/to/Qemu221/bin/qemu-system-mips64 \
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-M malta -cpu 5Kc -m 256 -hda disk4G.img -net nic,macaddr=52:54:00:fa:ce:08 \
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-net user,hostfwd=tcp::5555-:22 -kernel boot/vmlinux-3.2.0-4-5kc-malta \
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-initrd boot/initrd.img-3.2.0-4-5kc-malta \
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-append "root=/dev/sda1 console=ttyS0" -nographic
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System seems to have 256MB memory no matter how much you request.
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This is basically a 32 bit system at this point. To get something
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that can build 64 bit executables, it is necessary to install
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gcc-multilib and g++-multilib.
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Now you can ssh into the VM and install stuff as usual:
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ssh -XC -p 5555 username@localhost
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(on the guest)
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become root
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apt-get install make g++ gcc subversion emacs gdb automake autoconf
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apt-get gcc-multilib g++-multilib
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Configuring V on the guest:
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./autogen.sh
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CFLAGS="-mips64 -mabi=64" CXXFLAGS="-mips64 -mabi=64" \
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./configure --prefix=`pwd`/Inst
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