(gdb) break *0x972

If for some reasons you have an Archlinux box without Internet access (like a Qemu system not completely setup?), but still want to install pacman packages, here is a little help:

Synchronize pacman database

cat > ./pacman_update.sh2 << EOF
#! /bin/sh

MIRROR=http://mirror.archlinuxarm.org/aarch64/

ROOT_FS=/path/to/archlinux/filesystem/root
PAC_SYNC=$ROOT_FS/var/lib/pacman/sync

set -x
wget -q $MIRROR/alarm/alarm.db -O $PAC_SYNC/alarm.db
wget -q $MIRROR/aur/aur.db -O $PAC_SYNC/aur.db
wget -q $MIRROR/community/community.db -O $PAC_SYNC/community.db
wget -q $MIRROR/core/core.db -O $PAC_SYNC/core.db
wget -q $MIRROR/extra/extra.db -O $PAC_SYNC/extra.db

Retrieve the packages to install

(archlinux) pacman -S zsh  
resolving dependencies...
looking for conflicting packages...

Packages (1) zsh-5.1.1-2.1

Total Download Size:   1.68 MiB  # nooo, we can't download that .... :(
Total Installed Size:  5.03 MiB

:: Proceed with installation? [Y/n] y
:: Retrieving packages ...
error: failed retrieving file 'zsh-5.1.1-2.1-aarch64.pkg.tar.xz' from mirror.archlinuxarm.org : Could not resolve host: mirror.archlinuxarm.org
warning: failed to retrieve some files
error: failed to commit transaction (download library error)
Errors occurred, no packages were upgraded.

yep, that's a good start, but that's not very convenient ...

(archlinux) pacman -Sp zsh
http://mirror.archlinuxarm.org/aarch64/extra/zsh-5.1.1-2.1-aarch64.pkg.tar.xz

yes, that's better !

Download the packages

cat > ./pacman_download.sh << EOF
#! /bin/sh

# run ./pacman_download.sh then past `pacman -Sp` urls to stdin

MIRROR=http://mirror.archlinuxarm.org/aarch64/

ROOT_FS=/home/kevin/travail/sample/juno-qemu/linaro/juno-fs
PAC_CACHE=$ROOT_FS/var/cache/pacman/pkg

while read url
do
    if [ -z "$url" ]
    then
        break
    fi
    echo Downloading $url into $PAC_CACHE ...
    wget -nc -q $url -P $PAC_CACHE
    echo Done
done
echo Bye bye.

Install the packages

(archlinux) pacman -S zsh
resolving dependencies...
looking for conflicting packages...

Packages (1) zsh-5.1.1-2.1

Total Installed Size:  5.03 MiB

:: Proceed with installation? [Y/n] 
(1/1) checking keys in keyring                     [######################] 100%
(1/1) checking package integrity                   [######################] 100%
(1/1) loading package files                        [######################] 100%
(1/1) checking for file conflicts                  [######################] 100%
(1/1) checking available disk space                [######################] 100%
(1/1) installing zsh                               [######################] 100%

And zsh is ready :-)