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| author | Yousong Zhou <yszhou4tech@gmail.com> | 2017-05-11 14:29:52 +0800 |
|---|---|---|
| committer | Yousong Zhou <yszhou4tech@gmail.com> | 2018-01-31 16:54:57 +0800 |
| commit | aa66aa0c9a77c115de0efcaf6ee59650b969b90d (patch) | |
| tree | 9b8cc0e5e21d6192c19f5b0c69efba7bd0e55e2c | |
| parent | c9c2e4d78dc683b46b7f31b230afbdcdc13b81f6 (diff) | |
| download | upstream-aa66aa0c9a77c115de0efcaf6ee59650b969b90d.tar.gz upstream-aa66aa0c9a77c115de0efcaf6ee59650b969b90d.tar.bz2 upstream-aa66aa0c9a77c115de0efcaf6ee59650b969b90d.zip | |
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 "$cmd3"
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
| -rwxr-xr-x | scripts/qemustart | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/scripts/qemustart b/scripts/qemustart index 6c2254e3af..5af93b9aed 100755 --- a/scripts/qemustart +++ b/scripts/qemustart @@ -117,6 +117,7 @@ rand_mac() { } parse_args() { + o_qemu_extra=() while [ "$#" -gt 0 ]; do case "$1" in --kernel) o_kernel="$2"; shift 2 ;; @@ -131,7 +132,7 @@ parse_args() { elif [ -z "$o_subtarget" ]; then o_subtarget="$1" else - o_qemu_extra=("${o_qemu_extra[@]}" "$1") + o_qemu_extra+=("$1") fi shift ;; @@ -174,11 +175,10 @@ start_qemu_armvirt() { if [ ! -f "$rootfs" -a -s "$rootfs.gz" ]; then gunzip "$rootfs.gz" fi - o_qemu_extra=( \ + o_qemu_extra+=( \ "-drive" "file=$rootfs,format=raw,if=virtio" \ "-append" "root=/dev/vda rootwait" \ - "${o_qemu_extra[@]}" \ - ) + ) } "$qemu_exe" -machine virt -cpu "$cpu" -nographic \ |