37f980dc03
... and re-generate all possible configure files, since they may depend
on things in config/.
config/ChangeLog:
Sync with GCC
2018-06-08 Martin Liska <mliska@suse.cz>
* bootstrap-mpx.mk: Remove.
2018-05-10 Martin Liska <mliska@suse.cz>
PR bootstrap/64914
* bootstrap-ubsan.mk: Define UBSAN_BOOTSTRAP.
2018-05-09 Joshua Watt <jpewhacker@gmail.com>
* ax_pthread.m4: Add file.
2018-05-08 Richard Biener <rguenther@suse.de>
PR bootstrap/85571
* bootstrap-lto-noplugin.mk: Disable compare.
* bootstrap-lto.mk: Supply contrib/compare-lto for do-compare.
2018-04-24 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/85490
* bootstrap-cet.mk (STAGE4_CFLAGS): New.
2018-04-24 H.J. Lu <hongjiu.lu@intel.com>
PR target/85485
* bootstrap-cet.mk (STAGE2_CFLAGS): Remove -mcet.
(STAGE3_CFLAGS): Likewise.
2018-04-24 H.J. Lu <hongjiu.lu@intel.com>
PR target/85485
* cet.m4 (GCC_CET_FLAGS): Replace -mcet with -mshstk.
2018-04-19 Jakub Jelinek <jakub@redhat.com>
* cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace
--enable-cet=default with --enable-cet=auto.
2018-04-18 David Malcolm <dmalcolm@redhat.com>
PR jit/85384
* acx.m4 (GCC_BASE_VER): Remove \$\$ from sed expression.
51 lines
968 B
Plaintext
51 lines
968 B
Plaintext
dnl
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dnl GCC_CET_FLAGS
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dnl (SHELL-CODE_HANDLER)
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dnl
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AC_DEFUN([GCC_CET_FLAGS],[dnl
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GCC_ENABLE(cet, no, ,[enable Intel CET in target libraries],
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permit yes|no|auto)
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AC_MSG_CHECKING([for CET support])
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case "$host" in
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i[[34567]]86-*-linux* | x86_64-*-linux*)
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case "$enable_cet" in
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auto)
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# Check if target supports multi-byte NOPs
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# and if assembler supports CET insn.
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[],
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[
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#if !defined(__SSE2__)
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#error target does not support multi-byte NOPs
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#else
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asm ("setssbsy");
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#endif
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])],
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[enable_cet=yes],
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[enable_cet=no])
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;;
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yes)
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# Check if assembler supports CET.
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[],
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[asm ("setssbsy");])],
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[],
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[AC_MSG_ERROR([assembler with CET support is required for --enable-cet])])
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;;
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esac
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;;
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*)
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enable_cet=no
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;;
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esac
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if test x$enable_cet = xyes; then
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$1="-fcf-protection -mshstk"
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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])
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