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make objcopy fail if it is asked to redefine symbols in an object file containing LTO information.

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* objcopy.c (filter_symbols): Fail if attempting to dredefine
	symbols in an LTO object file.
This commit is contained in:
Nick Clifton 2021-09-30 12:56:19 +01:00
parent 6010fb0c49
commit 7325ba796b
2 changed files with 12 additions and 0 deletions
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5
binutils/ChangeLog
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@ -1,3 +1,8 @@
2021-09-30 Nick Clifton <nickc@redhat.com>
* objcopy.c (filter_symbols): Fail if attempting to dredefine
symbols in an LTO object file.
2021-09-27 Nick Alcock <nick.alcock@oracle.com>
* configure: Regenerate.

7
binutils/objcopy.c
View File

@ -1542,6 +1542,13 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
{
char *new_name;
if (name[0] == '_'
&& name[1] == '_'
&& strcmp (name + (name[2] == '_'), "__gnu_lto_slim") == 0)
{
fatal (_("redefining symbols does not work on LTO-compiled object files"));
}
new_name = (char *) lookup_sym_redefinition (name);
if (new_name == name
&& (flags & BSF_SECTION_SYM) != 0)