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Date: Wed, 27 Oct 2021 20:24:37 -0300
From: Érico Nogueira <ericonr@...root.org>
To: <musl@...ts.openwall.com>
Subject: Re: freeswitch and musl 1.2.x (time64 most likely)
On Wed Oct 27, 2021 at 7:16 PM -03, Sebastian Kemper wrote:
> Hi all,
>
> I put OpenWrt with musl 1.2.x on my router. freeswitch was updated a bit
> in preparation for time64 libc. This snippet was added:
>
> #if __USE_TIME_BITS64
> #define TIME_T_FMT SWITCH_INT64_T_FMT
> #else
> #define TIME_T_FMT "ld"
> #endif
>
> And the few places where during compilation there were new warnings
> (time_t related) I replaced some '%ld' with TIME_T_FMT and they
> disappeared.
What they should be doing is always defining TIME_T_FMT to "lld" and
casting the values to be formatted to (long long). Hardcoding platform
details like that is broken and just generally a terrible idea. I
started working on a patch, you can find it here [1].
[1] https://github.com/signalwire/freeswitch/pull/1409
However, the code does seem to be correct, so there's probably something
wrong in a place where they aren't using TIME_T_FMT.
>
> But now I try to start freeswitch on the router and it doesn't work. It
> either just exits somehow or it segfaults. The logs on the router show
> that freeswitch puts the wrong time stamps. So there must still be some
> time64 problem hidden somewhere.
>
> Wed Oct 27 23:44:35 2021 daemon.info freeswitch[10181]: 1970-01-01
> 00:24:12.-055227 0.00% [NOTICE] switch_loadable_module.c:223 Adding
> Codec SPEEX 99 Speex 8000hz 20ms 1ch 24600bps
> Wed Oct 27 23:44:35 2021 daemon.info freeswitch[10181]: 1970-01-01
> 00:24:12.-066240 0.00% [CONSOLE] switch_loadable_module.c:2191 open of
> pre_load_modules.conf failed
> Wed Oct 27 23:44:35 2021 daemon.info freeswitch[10181]: 1970-01-01
> 00:24:12.-066240 0.00% [INFO] switch_core_sqldb.c:3593 Opening DB
> Wed Oct 27 23:44:35 2021 daemon.info freeswitch[10181]: 1970-01-01
> 00:24:12.-054973 0.00% [INFO] switch_core_sqldb.c:1842 CORE Starting SQL
> thread.
> Wed Oct 27 23:44:35 2021 daemon.info freeswitch[10181]: 1970-01-01
> 00:24:12.-062042 0.00% [CONSOLE] switch_loadable_module.c:1768
> Successfully Loaded [mod_logfile]
>
> This is the end of the log. And then freeswitch just disappeared.
>
> I'm not a programmer, so looking at the code is a bit of a hurdle :D I
> think that the time basics are set up in src/switch_time.c ([1]) and
> src/include/switch_apr.h ([2]). I'm wondering if anybody could maybe
> give these files a look and check if you see something obvious? *
> (pretty please) * Or maybe give me a hint how to narrow it down? I guess
> I should do a backtrace?
Please do obtain a backtrace. A line number to look at helps plenty!
>
> Kind regards,
> Sebastian
>
> [1]
> https://github.com/signalwire/freeswitch/blob/master/src/switch_time.c
> [2]
> https://github.com/signalwire/freeswitch/blob/master/src/include/switch_apr.h
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