https://sourceware.org/bugzilla/show_bug.cgi?id=19842
--- Comment #25 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Cary Coutant <ccout...@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=648c5cbbf34dcbf96bde7e07b14868777fd5d635 commit 648c5cbbf34dcbf96bde7e07b14868777fd5d635 Author: Cary Coutant <ccout...@gmail.com> Date: Mon Mar 21 19:07:55 2016 -0700 Fix problem where gold fails to issue an undefined symbol error during LTO. During LTO, if (1) an IR file contains a COMDAT group that is kept, (2) a later non-claimed file contains the same group, which we discard, and (3) the plugin fails to provide a definition of the symbols in that COMDAT group, gold silently resolves any references to those symbols to 0. This patch adds a check for a placeholder symbol when deciding whether to issue an undefined symbol error. It also adds an extra note after any undefined placeholder symbol error that explains that a definition was expected from the plugin. gold/ PR gold/19842 * errors.cc (Errors::undefined_symbol): Add info message when symbol should have been provided by a plugin. * target-reloc.h (issue_undefined_symbol_error): Check for placeholder symbols defined in discarded sections. * testsuite/Makefile.am (plugin_test_9b): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/plugin_test_9b_elf.cc: New test source file. * testsuite/plugin_test_9b_ir.cc: New test source file. -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
