[debian-mysql] Bug#882329: Bug#882329: mariadb-10.1: FTBFS if jemalloc is disabled - undefined reference to symbol '__bss_start'

[Ondřej Surý]

Hi James,

thanks for the detailed analysis. I have disabled the embedded pcre
usage for now as I do believe this need to be fixed in the pcre3 package
and not here anyway. And as far as I see it the impact is quite low
(e.g. the number of users running mariadb-10.1 on mips* and hitting the
pcre issue should be very very low).

Hopefully the pcre3 maintainer will fix it as I do believe Adrian's
arguments would at least convince me :)

Cheers,
-- 
Ondřej Surý <ondrej at sury.org>

On Tue, Nov 21, 2017, at 15:57, James Cowgill wrote:
> Source: mariadb-10.1
> Version: 10.1.29-1
> Severity: serious
> Tags: sid buster
> 
> Hi,
> 
> mariadb-10.1 FTBFS if jemalloc is disabled with the following error:
> > /usr/bin/ld: ../../mysys/libmysys.a(stacktrace.c.o): undefined reference to symbol '__bss_start'
> > //usr/lib/mips64el-linux-gnuabi64/liblz4.so.1: error adding symbols: DSO missing from command line
> > collect2: error: ld returned 1 exit status
> 
> In practice, this breaks mips* where jemalloc is disabled because
> jemalloc 3.6 has major issues on mips (which are fixed in 5.0, but
> that's a separate issue). The bug can be reproduced on amd64 if jemalloc
> is manually disabled in debian/rules.
> 
> I think this is a bug in ld which I have filed here:
> https://sourceware.org/bugzilla/show_bug.cgi?id=22471
> 
> Thinking about ways you could workaround it:
> * Disable the HAVE_BSS_START config test, or
> * Manually link mariabackup against a library which exports __bss_start
> (such as liblz4 as suggested), or
> * Revert to using the system libpcre which provides a __bss_start symbol
> (presumably blocked on #878107).
> 
> Using the gold linker might have also worked, but it seems that mariadb
> complains if you try to use it.
> 
> Thanks to Adrian Bunk for some help debugging this problem.
> 
> Thanks,
> James
> 
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