lto: Don't add indirect symbols for versioned aliases in IR

Linker adds indirect symbols for versioned symbol aliases, which are
created by ".symver foo, foo@FOO", by checking symbol type, value and
section so that references to foo will be replaced by references to
foo@FOO if foo and foo@FOO have the same symbol type, value and section.
But in IR, since all symbols of the same type have the same value and
section, we can't tell if a symbol is an alias of another symbol by
their types, values and sections.  We shouldn't add indirect symbols
for versioned symbol aliases in IR.

bfd/

	PR ld/30281
	* elflink.c (elf_link_add_object_symbols): Don't add indirect
	symbols for ".symver foo, foo@FOO" aliases in IR.

ld/

	PR ld/30281
	* testsuite/ld-plugin/lto.exp: Add PR ld/30281 test.
	* testsuite/ld-plugin/pr30281.t: New file.
	* testsuite/ld-plugin/pr30281.c: Likewise.

1 files changed, 8 insertions, 1 deletions

diff --git a/bfd/elflink.c b/bfd/elflink.c
index bab1a36598e..f10faa5f8bd 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -5382,7 +5382,14 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
 	      h->unique_global = (flags & BSF_GNU_UNIQUE) != 0;
 	    }
 
-	  if (definition && !dynamic)
+	  /* Don't add indirect symbols for .symver x, x@FOO aliases
+	     in IR.  Since all data or text symbols in IR have the
+	     same type, value and section, we can't tell if a symbol
+	     is an alias of another symbol by their types, values and
+	     sections.  */
+	  if (definition
+	      && !dynamic
+	      && (abfd->flags & BFD_PLUGIN) == 0)
 	    {
 	      char *p = strchr (name, ELF_VER_CHR);
 	      if (p != NULL && p[1] != ELF_VER_CHR)