[Bug libc/28920] New: ldd crashes when it can't find libjvm.so

[Bug libc/28920] New: ldd crashes when it can't find libjvm.so

[ht990332 at gmx dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

            Bug ID: 28920
           Summary: ldd crashes when it can't find libjvm.so
           Product: glibc
           Version: 2.35
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: ht990332 at gmx dot com
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---

archlinux gcc 11.2 / binutils 2.38/ glibc 2.35

ldd  /usr/lib/jvm/default-runtime/lib/libnio.so returns nothing.
It actually segfaults without any valid trace.

LD_LIBRARY_PATH=/usr/lib/jvm/default-runtime/lib/server ldd
/usr/lib/jvm/default-runtime/lib/libnio.so avoids the segfault.
This was not an issue in previous versions of glibc.

I tried archlinux's jdk, adoptium eclipse jdk, oracle jdk, and many other jdk
flavors. I even compiled openjdk myself. all result in a same issue.

An Archlinux developer confirmed the segfault so this isn't a local problem on
my machine.

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[Bug libc/28920] ldd crashes when it can't find libjvm.so

[adhemerval.zanella at linaro dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |adhemerval.zanella at linaro dot o
                   |                            |rg

--- Comment #1 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
I think this is duplicate of bz#28868.  Could you check if
https://patchwork.sourceware.org/project/glibc/list/?series=7467 fixes it?

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[Bug libc/28920] ldd crashes when it can't find libjvm.so

[ht990332 at gmx dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

--- Comment #2 from Hussam Al-Tayeb <ht990332 at gmx dot com> ---
(In reply to Adhemerval Zanella from comment #1)
> I think this is duplicate of bz#28868.  Could you check if
> https://patchwork.sourceware.org/project/glibc/list/?series=7467 fixes it?

It does.
 ldd libnio.so 
ldd: warning: you do not have execution permission for `./libnio.so'
        linux-vdso.so.1 (0x00007ffcff9ba000)
        libjava.so => /usr/lib/jvm/java-17-temurin/lib/./libjava.so
(0x00007f9140000000)
        libnet.so => /usr/lib/jvm/java-17-temurin/lib/./libnet.so
(0x00007f913fc00000)
        libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007f91407e1000)
        libdl.so.2 => /usr/lib/libdl.so.2 (0x00007f91407dc000)
        libc.so.6 => /usr/lib/libc.so.6 (0x00007f9140628000)
        /usr/lib64/ld-linux-x86-64.so.2 (0x00007f9140803000)
        libjvm.so => not found
        libjvm.so => not found


Why the double libjvm.so => not found though?

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[Bug libc/28920] ldd crashes when it can't find libjvm.so

[adhemerval.zanella at linaro dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

--- Comment #3 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
(In reply to Hussam Al-Tayeb from comment #2)
> (In reply to Adhemerval Zanella from comment #1)
> > I think this is duplicate of bz#28868.  Could you check if
> > https://patchwork.sourceware.org/project/glibc/list/?series=7467 fixes it?
> 
> It does.
>  ldd libnio.so 
> ldd: warning: you do not have execution permission for `./libnio.so'
> 	linux-vdso.so.1 (0x00007ffcff9ba000)
> 	libjava.so => /usr/lib/jvm/java-17-temurin/lib/./libjava.so
> (0x00007f9140000000)
> 	libnet.so => /usr/lib/jvm/java-17-temurin/lib/./libnet.so
> (0x00007f913fc00000)
> 	libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007f91407e1000)
> 	libdl.so.2 => /usr/lib/libdl.so.2 (0x00007f91407dc000)
> 	libc.so.6 => /usr/lib/libc.so.6 (0x00007f9140628000)
> 	/usr/lib64/ld-linux-x86-64.so.2 (0x00007f9140803000)
> 	libjvm.so => not found
> 	libjvm.so => not found

Thanks for checking on it.

> 
> 
> Why the double libjvm.so => not found though?

Because /usr/lib/jvm/java-17-temurin/lib/./libjava.so and
/usr/lib/jvm/java-17-temurin/lib/./libnet.so both have libjvm.so as DT_NEEDED
and loaders does not keep track if the object already was printted for
LD_TRACE_LOADED_OBJECTS.

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[Bug libc/28920] ldd crashes when it can't find libjvm.so

[adhemerval.zanella at linaro dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #4 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
As per previous comments.

*** This bug has been marked as a duplicate of bug 28868 ***

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[Bug libc/28920] ldd crashes when it can't find libjvm.so

[ht990332 at gmx dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

--- Comment #5 from Hussam Al-Tayeb <ht990332 at gmx dot com> ---
On Wed, 2022-02-23 at 17:30 +0000, adhemerval.zanella at linaro dot org
wrote:
> Because /usr/lib/jvm/java-17-temurin/lib/./libjava.so and
> /usr/lib/jvm/java-17-temurin/lib/./libnet.so both have libjvm.so as
> DT_NEEDED
> and loaders does not keep track if the object already was printted
> for
> LD_TRACE_LOADED_OBJECTS.
> 

So it's not sorted in a tree format? Why are they both showing at end
instead one of the entries after libjava.so?

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[Bug libc/28920] ldd crashes when it can't find libjvm.so

[freswa at archlinux dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28920

freswa <freswa at archlinux dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |freswa at archlinux dot org

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