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| author | Nick Clifton <nickc@redhat.com> | 2021-09-30 12:56:19 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2021-09-30 12:56:19 +0100 |
| commit | 7325ba796b4432b73388d0cdbd5b0e8c8dee8855 (patch) | |
| tree | d984f709027c163ac8a6113181925be613d9fa7f | |
| parent | 6010fb0c49e7dd9f183375fb4f343acc2999e127 (diff) | |
| download | gdb-7325ba796b4432b73388d0cdbd5b0e8c8dee8855.zip gdb-7325ba796b4432b73388d0cdbd5b0e8c8dee8855.tar.gz gdb-7325ba796b4432b73388d0cdbd5b0e8c8dee8855.tar.bz2 | |
make objcopy fail if it is asked to redefine symbols in an object file containing LTO information.
* objcopy.c (filter_symbols): Fail if attempting to dredefine
symbols in an LTO object file.
| -rw-r--r-- | binutils/ChangeLog | 5 | ||||
| -rw-r--r-- | binutils/objcopy.c | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 5957d6f..0d5e4a0 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -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. diff --git a/binutils/objcopy.c b/binutils/objcopy.c index fd7557f..75fd89d 100644 --- a/binutils/objcopy.c +++ b/binutils/objcopy.c @@ -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) |