Make the version match Alpine's gcc again. Fixes libstdc++ unsatisfiable
constrains related error messages (because the libstdc++ generated by
these cross-* packages has the same pkgver and pkgrel again as the one
provided by Alpine's gcc package).
[ci:skip-build]
Use the native rustc cross compiler where possible, and fall back to the
qemu rustc if necessary. This should improve speed and reliability.
Without this patch, building squeekbox 1.4.0 for aarch64 with the
pmbootstrap stack just hangs forever.
Related: pmbootstrap#1861
If (a) the kernel command line parameters include PMOS_BOOTCHART2 and
(b) /sbin/bootchartd exists (i.e., the bootchart2 package has been
installed), run /sbin/bootchartd instead of /sbin/init.
Port bootchart2 to PostmarketOS, with three patches:
1. Modification of /etc/bootchartd.conf so that the collector
will stop after sshd has started.
2. Python 3.8 compatibility
3. Disable the interactive mode of pybootchartgui.
Use bootchart2 to profile system boot or a running system.
1. Add the bootchart2 package to your device.
2. Add the following kernel command line parameters: initcall_debug
printk.time=y quiet
3. To profile system boot
a. add the following kernel command line parameter: PMOS_BOOTCHART2.
This parameter causes mkinitfs to start /sbin/bootchartd instead of
/sbin/init. /sbin/bootchartd then starts /sbin/init.
b. (optional) modify EXIT_PROC in /etc/bootchartd.conf to define
when the collector is to stop.
c. Boot the system. Approximately 20 seconds after sshd starts
(if using the default value of EXIT_PROC), the collector
will exit.
4. To profile a running system
a. use the command '/sbin/bootchartd start' (as root) to start
profiling
b. use the command '/sbin/bootchartd stop' (as root) to stop
profiling
5. When the collector exits, /usr/bin/pybootchartgui will create
a visualization in /var/log/bootchart.png.
