Date: Wed, 15 Oct 2025 12:23:02 -0700 From: Mark Millard <marklmi@yahoo.com> To: void <void@f-m.fm> Cc: freebsd-pkg@freebsd.org Subject: Re: Undefined symbol "setgroups@FBSD_1.8" Message-ID: <324B53B0-CFEA-4CAA-A289-CF6AEA708180@yahoo.com> In-Reply-To: <aO_oKbIFKwTxjnjd@int21h> References: <aO7qm_KW_hTFCzll@int21h> <11DE790B-4E98-4D42-A281-E0B669474C89@yahoo.com> <aO8iH0OI61BCPBn_@int21h> <2EC26A5F-3FEF-4D18-986D-A5106B164C64@yahoo.com> <aO-iOK4pBzufi8Gv@int21h> <504EC476-50C6-49EC-85F6-AEB9C104F205@yahoo.com> <aO_oKbIFKwTxjnjd@int21h>
index | next in thread | previous in thread | raw e-mail
On Oct 15, 2025, at 11:30, void <void@f-m.fm> wrote:
> On Wed, Oct 15, 2025 at 08:47:45AM -0700, Mark Millard wrote:
>>
>> Again:
>>
>> 13.5 does not have compat support for 15 (or 14 or 16). That
>> is a property of 13.5, not of sccache(-overlay).
>>
>
> Yet sccache and sccache-overlay work fine on a stable/14 host with
> a 13.5 builder. This is what threw me.
14 does not have the new setgroups/getgroups change that
creates the incompatibility --and does not have any new
special symbols for them: both 14 and 13.5 are using the
FBSD_1.0 symbols for setgroups/getgroups and have no
FBSD_1.8 symbols at all. Nor a libsys. 15 does have
FBSD_1.8 symbols and a libsys. setgroups/getgroups both
moved into that FBSD_1.8 and to libsys --FBSD_1.8
because 15's code update to setgroups/getgroups is
incompatible. 16+ is like 15 (for now).
Incompatible updates that go in libsys are relatively
rare out of the full set of interfacing symbols that
are around --and, of those that occur, are fairly
commonly for things that few programs have involved.
You happen to be using one that does involve such
incompatibility for setgroups/getgroups for before
15 vs. 15 and later.
> Anyhow, I accept the sccache needs to be -static, and, as Kyle mentioned, the current model isn't really workable (until that happens).
>
> Interestingly, on 14.3-STABLE #10 stable/14-n272560 (built 1st Oct)
>
> % grep setgroups `grep -rl FBSD_1.8 /usr/src/`
> /usr/src/lib/libc/sys/Symbol.map: setgroups;
> /usr/src/lib/libc/sys/Symbol.map: _setgroups;
> /usr/src/lib/libc/sys/Symbol.map: __sys_setgroups;
If you look at FBSD_1.8 on releng/13.[45] or
releng/14.[123] you will find that
lib/libc/Versions.def has empty symbol lists
(for every FBSD_1.* listed, not just those shown
below):
. . .
# This version was first added to 13.0-current.
FBSD_1.6 {
} FBSD_1.5;
# This version was first added to 14.0-current.
FBSD_1.7 {
} FBSD_1.6;
# This version was first added to 15.0-current.
FBSD_1.8 {
} FBSD_1.7;
# This version was first added to 16.0-current.
FBSD_1.9 {
} FBSD_1.8;
. . .
But also involved are:
lib/libc/libc.ldscript :
GROUP ( @@SHLIB@@ @@LIBDIR@@/libc_nonshared.a @@LIBDIR@@/libssp_nonshared.a )
and:
lib/libc/libc_nossp.ldscript :
GROUP ( @@SHLIB@@ @@LIBDIR@@/libc_nonshared.a )
15 changed some how this worked as well, having added
libsys that 14 and before did not have at all.
setgroups/getgroups are in libsys in 15+ , which
leads to them being listed explicitly in FBSD_1.8 .
> on 15.0-STABLE stable/15-n280668 (built 12th Oct)
>
> % grep setgroups `grep -rl FBSD_1.8 /usr/src/`
> /usr/src/lib/libsys/Symbol.sys.map: setgroups;
That is because the incompatible change to setgroups
and getgroups happened in 15-CURRENT and, being
incompatible, was not MFC'd to stable/1[0-4] or any
releng/1[0-4].* . (Such applies to 15's new libsys
content and matching FBSD_1.8 content in general.)
Lack of MFC of new incompatibilities to older
versions is the normal procedure across major
FreeBSD versions as new FreeBSD versions are
developed.
===
Mark Millard
marklmi at yahoo.com
home |
help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?324B53B0-CFEA-4CAA-A289-CF6AEA708180>