| From: | Ants Aasma <ants(dot)aasma(at)eesti(dot)ee> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Peter Eisentraut <peter_e(at)gmx(dot)net> |
| Subject: | Re: RTLD_GLOBAL (& JIT inlining) |
| Date: | 2018-02-26 21:50:41 |
| Message-ID: | CA+CSw_uD6dZdg9BbOLCx+oY0rufsRSp5V5W8teonCB=OK=74aw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Feb 26, 2018 at 11:28 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> So RTLD_LOCAL is out of the question, but I think we can get a good bit
> of the benefit by either specifying -Wl,-Bsymbolic at shlib build time,
> or RTLD_DEEPBIND at dlopen() time. Either leads to the opened shared
> library effectively being put at the beginning of the search path,
> therefore avoiding the issue that an earlier loaded shared library or
> symbols from the main binary can accidentally overwrite things in the
> shared library itself. Which incidentally also makes loading a bit
> faster.
I think this would also fix oracle_fdw crashing when postgres is
compiled with --with-ldap. At least RTLD_DEEPBIND helped. [1]
Ants Aasma
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