On Sat, Nov 20, 2021 at 03:18:27PM +0100, Mark Wielaard wrote:
> Hi,
>
> On Sat, Nov 20, 2021 at 01:12:17AM +0300, Dmitry V. Levin wrote:
> > On Fri, Nov 19, 2021 at 05:58:19PM +0100, Florian Weimer wrote:
> > > It may have to do with --as-needed that some builds use. If there are
> > > no pendin
Hi,
On Sat, 2021-11-20 at 15:18 +0100, Mark Wielaard wrote:
> On Sat, Nov 20, 2021 at 01:12:17AM +0300, Dmitry V. Levin wrote:
> > On Fri, Nov 19, 2021 at 05:58:19PM +0100, Florian Weimer wrote:
> > > It may have to do with --as-needed that some builds use. If there are
> > > no pending undefined
Hi,
On Sat, Nov 20, 2021 at 01:12:17AM +0300, Dmitry V. Levin wrote:
> On Fri, Nov 19, 2021 at 05:58:19PM +0100, Florian Weimer wrote:
> > It may have to do with --as-needed that some builds use. If there are
> > no pending undefined references, some linkers drop earlier shared object
> > referen
On Fri, Nov 19, 2021 at 05:58:19PM +0100, Florian Weimer wrote:
> * Dmitry V. Levin:
>
> > Let's make clear what's going on here. First of all, dwfl-proc-attach.c
> > does not use dlopen so it doesn't pull it in and doesn't need -ldl.
> > In regular builds, dwfl-proc-attach.o is linked with ../li
* Dmitry V. Levin:
> Let's make clear what's going on here. First of all, dwfl-proc-attach.c
> does not use dlopen so it doesn't pull it in and doesn't need -ldl.
> In regular builds, dwfl-proc-attach.o is linked with ../libdw/libdw.so
> which in turn uses dlopen and is already linked with -ldl.
Hi Dmitry,
On Fri, Nov 19, 2021 at 01:20:26AM +0300, Dmitry V. Levin wrote:
> On Thu, Nov 18, 2021 at 10:23:41PM +0100, Mark Wielaard wrote:
> > dwfl-proc-attach uses (overrides) dlopen (so it does nothing). This
> > seems to cause a versioned dlopen symbol to be pulled in when building
> > with
On Thu, Nov 18, 2021 at 10:23:41PM +0100, Mark Wielaard wrote:
> dwfl-proc-attach uses (overrides) dlopen (so it does nothing). This
> seems to cause a versioned dlopen symbol to be pulled in when building
> with LTO. Resulting in a link failure (when dlopen isn't integrated
> into libc):
>
> /us
dwfl-proc-attach uses (overrides) dlopen (so it does nothing). This
seems to cause a versioned dlopen symbol to be pulled in when building
with LTO. Resulting in a link failure (when dlopen isn't integrated
into libc):
/usr/bin/ld: dwfl-proc-attach.o (symbol from plugin): undefined
reference to s
