scripts/qemustart: more portable array operation
The following commands output 1,2,1,1 cmd0='a=("${a[@]}" 'a'); echo "${#a}"' cmd1='a+=('a'); echo "${#a}"' bash -c "$cmd0"; zsh -c "$cmd0" bash -c "$cmd1"; zsh -c "$cmd1" The following outputs 0,1,0,0 cmd2='f() { echo "$#"; }; f "${a[@]}"' cmd3="a=(); $cmd2" bash -c "$cmd2"; zsh -c "$cmd2" bash -c "$cmd3"; zsh -c "$cmd3" Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
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1 changed files with 4 additions and 4 deletions
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@ -117,6 +117,7 @@ rand_mac() {
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}
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parse_args() {
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o_qemu_extra=()
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while [ "$#" -gt 0 ]; do
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case "$1" in
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--kernel) o_kernel="$2"; shift 2 ;;
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@ -131,7 +132,7 @@ parse_args() {
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elif [ -z "$o_subtarget" ]; then
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o_subtarget="$1"
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else
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o_qemu_extra=("${o_qemu_extra[@]}" "$1")
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o_qemu_extra+=("$1")
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fi
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shift
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;;
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@ -174,11 +175,10 @@ start_qemu_armvirt() {
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if [ ! -f "$rootfs" -a -s "$rootfs.gz" ]; then
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gunzip "$rootfs.gz"
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fi
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o_qemu_extra=( \
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o_qemu_extra+=( \
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"-drive" "file=$rootfs,format=raw,if=virtio" \
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"-append" "root=/dev/vda rootwait" \
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"${o_qemu_extra[@]}" \
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)
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)
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}
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"$qemu_exe" -machine virt -cpu "$cpu" -nographic \
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