Files
linux-kernel-module-cheat/runqemu
Ciro Santilli 251a8ecf53 bak
2017-06-14 00:23:58 +01:00

85 lines
2.0 KiB
Bash
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#!/usr/bin/env bash
set -e
# CLI handling.
arch=x86_64
debug=false
kgdb=false
nographic=false
extra_append=''
extra_flags=''
while getopts a:dkn OPT; do
case "$OPT" in
a)
arch=$OPTARG
;;
d)
debug=true
extra_flags="$extra_flags -S -s"
;;
k)
debug=true
extra_append="$extra_append kgdbwait"
# For those who want to try KDB.
#extra_append="$extra_append kgdbwait kgdboc=kbd"
extra_flags="$extra_flags -serial tcp::1234,server,nowait"
kgdb=true
;;
n)
extra_append="$extra_append console=ttyS0"
extra_flags="$extra_flags -nographic"
nographic=true
;;
esac
done
shift "$(($OPTIND - 1))"
extra_flags="$extra_flags $@"
images_dir='buildroot/output/images'
case "$arch" in
x86_64)
if $kgdb; then
extra_append="$extra_append kgdboc=ttyS0,115200"
fi
cmd="gdb -q -ex start --args ./buildroot/output/host/usr/bin/qemu-system-x86_64 \
-M pc \
-append 'root=/dev/vda $extra_append' \
-drive file=${images_dir}/rootfs.ext2,if=virtio,format=raw \
-kernel ${images_dir}/bzImage \
-m 128M \
-net nic,model=virtio \
-net user \
-smp 1 \
$extra_flags
"
;;
arm)
if $kgdb; then
extra_append="$extra_append kgdboc=ttyAMA0,115200"
fi
cmd="qemu-system-arm \
-M versatilepb \
-append 'root=/dev/sda $extra_append' \
-drive file=${images_dir}/rootfs.ext2,if=scsi,format=raw \
-dtb ${images_dir}/versatile-pb.dtb \
-kernel ${images_dir}/zImage \
-m 128M \
-net nic,model=rtl8139 \
-net user \
-serial stdio \
-smp 1 \
$extra_flags"
;;
esac
if "$debug" && ! "$nographic" && [ ! "$arch" = 'arm' ]; then
eval "$cmd" &>/dev/null &
# TODO: Ctrl +C gets sent to QEMU? Why? Does not happen if I run
# ./rungdb manually from outside this script!!! But why?!?!
# eval has nothing to do with it, minimized example with explicit
# commands also fails in the same way...
#./rungdb
else
eval "$cmd"
fi