[PATCH v3] elf: Don't set its DT_VERSYM entry for unversioned symbol

[Rainer Orth]

Hi Alan,

> On Fri, Oct 31, 2025 at 07:21:37AM +0800, H.J. Lu wrote:
>> Here is the v3 patch with updated tests in ld-elfvers.   I also updated
>> elf_link_output_extsym to handle defined symbol without version with
>> a test.
>> 
>> OK for master?

I wonder if we should add the testcase attached to the PR, adjusted to
work on all targets?


ld: Add testcase for PR ld/PR33577

This patch adds a testcase for the already fixed PR ld/PR33577.  Before
the patch, show_undef_weak would be incorrectly bound to the Base
version of the shared object:

0000000000000000  w   D  *UND*   0000000000000000  Base        show_undef_weak

while now it's not anymore:

0000000000000000  w   D  *UND*	0000000000000000              show_undef_weak

Tested on sparc{,v9}-sun-solaris2.11, {amd64,i386}-pc-solaris2.11, and
{x86_64,i686}-pc-linux-gnu.

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2025-10-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	ld:
	PR ld/33577
	* testsuite/ld-elfvers/vers33.c: New test.
	* testsuite/ld-elfvers/vers33.dsym: Likewise.
	* testsuite/ld-elfvers/vers33.map: Likewise.
	* testsuite/ld-elfvers/vers33.ver: Likewise.
	* testsuite/ld-elfvers/vers.exp: Run it.

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