https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94739
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@gcc.gnu.org>: https://gcc.gnu.org/g:8fc8bf801e46d0d478c50bddecf5d8edf9511849 commit r10-7961-g8fc8bf801e46d0d478c50bddecf5d8edf9511849 Author: H.J. Lu <hjl.to...@gmail.com> Date: Sat Apr 25 10:06:59 2020 -0700 Enable Intel CET in liblto_plugin.so on Intel CET enabled host Since ld is Intel CET enabled on Intel CET enabled host, dlopen fails on liblto_plugin.so if it isn't Intel CET enabled. Add GCC_CET_HOST_FLAGS to cet.m4, use it in libiberty and lto-plugin to always enable Intel CET in liblto_plugin.so on Intel CET enabled host. On Linux/x86 host, enable Intel CET by default if assembler and compiler support Intel CET so that the generated liblto_plugin.so can be used on both CET and non-CET machines. It is an error to disable Intel CET in liblto_plugin.so on Intel CET enabled host. config/ PR bootstrap/94739 * cet.m4 (GCC_CET_HOST_FLAGS): New. libiberty/ PR bootstrap/94739 * Makefile.in (COMPILE.c): Add @CET_HOST_FLAGS@. (configure_deps): Add $(srcdir)/../config/cet.m4 and $(srcdir)/../config/enable.m4. * aclocal.m4: Include ../config/cet.m4 and ../config/enable.m4. * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and AC_SUBST(CET_HOST_FLAGS). * configure: Regenerated. lto-plugin/ PR bootstrap/94739 * Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS). * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and AC_SUBST(CET_HOST_FLAGS). * Makefile.in: Regenerated. * aclocal.m4: Likewise. * configure: Likewise.
