mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-04 01:04:26 +08:00
8fc8bf801e
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 $(CET_HOST_FLAGS). * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and AC_SUBST(CET_HOST_FLAGS). * Makefile.in: Regenerated. * aclocal.m4: Likewise. * configure: Likewise.
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
AC_INIT([LTO plugin for ld], 0.1,,[lto-plugin])
|
|
AC_CANONICAL_SYSTEM
|
|
GCC_TOPLEV_SUBDIRS
|
|
AM_INIT_AUTOMAKE([foreign no-dist])
|
|
AM_MAINTAINER_MODE
|
|
AC_ARG_WITH(libiberty,
|
|
[AS_HELP_STRING([--with-libiberty=PATH],
|
|
[specify the directory where to find libiberty [../libiberty]])],
|
|
[], with_libiberty=../libiberty)
|
|
AC_SUBST(with_libiberty)
|
|
AC_USE_SYSTEM_EXTENSIONS
|
|
AC_PROG_CC
|
|
AC_SYS_LARGEFILE
|
|
ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags])
|
|
|
|
# Check whether -static-libgcc is supported.
|
|
saved_LDFLAGS="$LDFLAGS"
|
|
LDFLAGS="$LDFLAGS -static-libgcc"
|
|
AC_MSG_CHECKING([for -static-libgcc])
|
|
AC_LINK_IFELSE([AC_LANG_SOURCE([
|
|
int main() {}])], [have_static_libgcc=yes], [have_static_libgcc=no])
|
|
AC_MSG_RESULT($have_static_libgcc);
|
|
LDFLAGS="$saved_LDFLAGS"
|
|
# Need -Wc to get it through libtool.
|
|
if test "x$have_static_libgcc" = xyes; then
|
|
ac_lto_plugin_ldflags="-Wc,-static-libgcc"
|
|
fi
|
|
AC_SUBST(ac_lto_plugin_ldflags)
|
|
|
|
GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
|
|
AC_SUBST(CET_HOST_FLAGS)
|
|
|
|
if test x"$host_subdir" = x.; then
|
|
gcc_build_dir=../gcc
|
|
else
|
|
gcc_build_dir=../../$host_subdir/gcc
|
|
fi
|
|
AC_SUBST(gcc_build_dir)
|
|
|
|
# Used for constructing correct paths for offload compilers.
|
|
accel_dir_suffix=
|
|
real_target_noncanonical=${target_noncanonical}
|
|
if test x"$enable_as_accelerator_for" != x; then
|
|
accel_dir_suffix=/accel/${target_noncanonical}
|
|
real_target_noncanonical=${enable_as_accelerator_for}
|
|
fi
|
|
AC_SUBST(accel_dir_suffix)
|
|
AC_SUBST(real_target_noncanonical)
|
|
|
|
# Determine what GCC version number to use in filesystem paths.
|
|
GCC_BASE_VER
|
|
|
|
AM_PROG_LIBTOOL
|
|
ACX_LT_HOST_FLAGS
|
|
AC_SUBST(target_noncanonical)
|
|
AC_TYPE_INT64_T
|
|
AC_TYPE_UINT64_T
|
|
AC_HEADER_SYS_WAIT
|
|
AC_CONFIG_FILES(Makefile)
|
|
AC_CONFIG_HEADERS(config.h)
|
|
AC_OUTPUT
|