[Bug build/27132] New: libmemusage.so is linked to system librt, leading to undefined symbols on major version upgrade

[Bug build/27132] New: libmemusage.so is linked to system librt, leading to undefined symbols on major version upgrade

[dilfridge at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

            Bug ID: 27132
           Summary: libmemusage.so is linked to system librt, leading to
                    undefined symbols on major version upgrade
           Product: glibc
           Version: 2.32
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: dilfridge at gentoo dot org
                CC: carlos at redhat dot com
  Target Milestone: ---

This is a clone of https://bugs.gentoo.org/762682 - see more details there.

>From a build log of one of our users, who is building glibc-2.32 on a system
with glibc-2.27 installed:

i686-pc-linux-gnu-gcc  -march=athlon -pipe -O2 -Wl,-O1 -Wl,--as-needed -Wl,-O1
-Wl,--as-needed  -shared -s
tatic-libgcc -Wl,-O1  -Wl,-z,defs -Wl,-dynamic-linker=/lib/ld-linux.so.2 
-B/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/csu/
  -Wl,-soname=libmemusage.so -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,now 
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl
-L/var/t
mp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/math
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/elf
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/dlfcn
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-
gnu-nptl/nss
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nis
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/rt
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/resolv
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/buil
d-x86-i686-pc-linux-gnu-nptl/mathvec
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/support
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/crypt
-L/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nptl
-Wl,-rpath-link=/var/t
mp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/math:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/elf:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/dlf
cn:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nss:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nis:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/rt:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-g
nu-nptl/resolv:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/mathvec:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/support:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/crypt:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/bu
ild-x86-i686-pc-linux-gnu-nptl/nptl -o
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/malloc/libmemusage.so
-T
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/shlib.lds
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/csu/abi-no
te.o -Wl,--whole-archive
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/malloc/libmemusage_pic.a
-Wl,--no-whole-archive
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/dlfcn/libdl.so.2
  -Wl,--start-group /var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x
86-i686-pc-linux-gnu-nptl/libc.so
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/libc_nonshared.a
-Wl,--as-needed
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/elf/ld.so
-Wl,--no-as-needed -Wl,--end-group
/usr/lib/gcc/i686-pc-linux-gnu/8.2.0/../../../../i686-pc-linux-gnu/bin/ld:
/lib/librt.so.1: undefined reference to `__clock_settime@GLIBC_PRIVATE'         
/usr/lib/gcc/i686-pc-linux-gnu/8.2.0/../../../../i686-pc-linux-gnu/bin/ld:
/lib/librt.so.1: undefined reference to `__clock_getcpuclockid@GLIBC_PRIVATE'   
/usr/lib/gcc/i686-pc-linux-gnu/8.2.0/../../../../i686-pc-linux-gnu/bin/ld:
/lib/librt.so.1: undefined reference to `__clock_nanosleep@GLIBC_PRIVATE'
/usr/lib/gcc/i686-pc-linux-gnu/8.2.0/../../../../i686-pc-linux-gnu/bin/ld:
/lib/librt.so.1: undefined reference to `__clock_getres@GLIBC_PRIVATE'          
collect2: error: ld returned 1 exit status          
make[2]: *** [../Rules:215:
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/
malloc/memusagestat] Error 1


It looks like the build tries to link libmemusage.so using the *installed*
librt.so, not the just built one.

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[Bug build/27132] libmemusage.so is linked to system librt, leading to undefined symbols on major version upgrade

[dilfridge at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Andreas K. Huettel <dilfridge at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://bugs.gentoo.org/762
                   |                            |682

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[Bug build/27132] libmemusage.so is linked to system librt, leading to undefined symbols on major version upgrade

[schwab@linux-m68k.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
libmemusage is not linked against librt at all.

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[dilfridge at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Andreas K. Huettel <dilfridge at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|libmemusage.so is linked to |memusagestat is linked to
                   |system librt, leading to    |system librt, leading to
                   |undefined symbols on major  |undefined symbols on major
                   |version upgrade             |version upgrade

--- Comment #2 from Andreas K. Huettel <dilfridge at gentoo dot org> ---
(In reply to Andreas Schwab from comment #1)
> libmemusage is not linked against librt at all.

Sorry, my bad for not doublechecking (the fun of parallel build).

The error is from linking memusagestat (that's two lines up in the build log):

i686-pc-linux-gnu-gcc  -march=athlon -pipe -O2 -Wl,-O1 -Wl,--as-needed
-Wl,-rpath-link=/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl:/var/tmp/portage/sys-libs/gl
ibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/math:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/elf:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i
686-pc-linux-gnu-nptl/dlfcn:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nss:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nis:/
var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/rt:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/resolv:/var/tmp/portage/sys-libs/gl
ibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/mathvec:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/support:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/buil
d-x86-i686-pc-linux-gnu-nptl/crypt:/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/nptl
-pie -Wl,-O1 -nostdlib -nostartfiles -o /var/tmp/portage/sys-libs/glibc-2.3
2-r3/work/build-x86-i686-pc-linux-gnu-nptl/malloc/memusagestat  -Wl,-O1
-Wl,--as-needed  -Wl,-z,combreloc -Wl,-z,relro 
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-
nptl/csu/Scrt1.o
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/csu/crti.o
`i686-pc-linux-gnu-gcc  -march=athlon -pipe -O2 -Wl,-O1 -Wl,--as-needed 
--print-file-n
ame=crtbeginS.o`
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/malloc/memusagestat.o
 -lgd -lpng -lz -lm -Wl,-dynamic-linker=/lib/ld-linux.so.2 -Wl,-z,now /var/t
mp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/libc.so.6
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/libc_nonshared.a
-Wl,--as-needed 
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/elf/ld.so
-Wl,--no-as-needed -lgcc  `i686-pc-linux-gnu-gcc  -march=athlon -pipe -O2
-Wl,-O1 -Wl,--as-needed  --prin
t-file-name=crtendS.o`
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/csu/crtn.o
cd
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/malloc
&& /usr/lib/gcc/i686-pc-linux-gnu/8.2.0/../../../../i686-pc-linux-gnu/bin/ar
cruv libmemusage_pic.a memus
age.os

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[dilfridge at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Andreas K. Huettel <dilfridge at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://sourceware.org/bugz
                   |                            |illa/show_bug.cgi?id=18465

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[schwab@linux-m68k.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

--- Comment #3 from Andreas Schwab <schwab@linux-m68k.org> ---
memusagestat isn't linked against librt either.

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[dilfridge at gentoo dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

--- Comment #4 from Andreas K. Huettel <dilfridge at gentoo dot org> ---
make[2]: *** [../Rules:215:
/var/tmp/portage/sys-libs/glibc-2.32-r3/work/build-x86-i686-pc-linux-gnu-nptl/malloc/memusagestat]
Error 1

So why does the memusagestat target fail then?

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[joseph at codesourcery dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

--- Comment #5 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
memusagestat is linked with -lgd -lpng -lz, which are non-glibc libraries; 
maybe the way ld looks for libraries mentioned in DT_NEEDED in shared 
libraries it links with (a questionable feature of ld) is resulting in 
some other system shared library being found.  Really it would be better 
for memusagestat to be a separate package rather than included in the main 
glibc distribution at all (it could still be released along with glibc if 
desired), to avoid build complications related to such dependencies.

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[fw at deneb dot enyo.de]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Florian Weimer <fw at deneb dot enyo.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fw at deneb dot enyo.de
              Flags|                            |security-

--- Comment #6 from Florian Weimer <fw at deneb dot enyo.de> ---
Does adding the line

rt

to malloc/Depend fix this issue?

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[Bug build/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[zimmerma+gcc at loria dot fr]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Paul Zimmermann <zimmerma+gcc at loria dot fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zimmerma+gcc at loria dot fr

--- Comment #7 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
(In reply to Florian Weimer from comment #6)
> Does adding the line
> 
> rt
> 
> to malloc/Depend fix this issue?

yes it does (I had the same issue on my laptop, under Ubuntu 18.04, with
glibc-2.27 as system library, while trying to compile glibc-2.33 or the current
git version).

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[Bug malloc/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fweimer at redhat dot com
           Assignee|unassigned at sourceware dot org   |fweimer at redhat dot com
          Component|build                       |malloc

--- Comment #8 from Florian Weimer <fweimer at redhat dot com> ---
Thanks. Patch posted:
https://sourceware.org/pipermail/libc-alpha/2021-February/122934.html

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[Bug malloc/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2021-02-23

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[Bug malloc/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[zimmerma+gcc at loria dot fr]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

--- Comment #9 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
patch applied (commit 9019737).

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[Bug malloc/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|fweimer at redhat dot com          |zimmerma+gcc at loria dot fr

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[Bug malloc/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[zimmerma+gcc at loria dot fr]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Paul Zimmermann <zimmerma+gcc at loria dot fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
             Target|                            |2.34

--- Comment #10 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
fixed in commit 9019737.

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[Bug malloc/27132] memusagestat is linked to system librt, leading to undefined symbols on major version upgrade

[zimmerma+gcc at loria dot fr]

https://sourceware.org/bugzilla/show_bug.cgi?id=27132

Paul Zimmermann <zimmerma+gcc at loria dot fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|2.34                        |
   Target Milestone|---                         |2.34

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