On Tue, Oct 24, 2017 at 1:14 PM, H.J. Lu <hjl.to...@gmail.com> wrote:
> Bootstrap GCC with Intel CET by configuring GCC with
>
> --with-build-config="bootstrap-cet bootstrap-debug"
>
> Tested on Linux/i686 and Linux/x86-64.
>
> OK for trunk?
Ok. Do you have a simulator that understands CET yet?
Richard.
> H.J.
> ---
> config/
>
> * bootstrap-cet.mk: New file.
>
> gcc/
>
> * doc/install.texi: Document bootstrap-cet.
> ---
> config/bootstrap-cet.mk | 4 ++++
> gcc/doc/install.texi | 7 +++++++
> 2 files changed, 11 insertions(+)
> create mode 100644 config/bootstrap-cet.mk
>
> diff --git a/config/bootstrap-cet.mk b/config/bootstrap-cet.mk
> new file mode 100644
> index 00000000000..f09193a6dea
> --- /dev/null
> +++ b/config/bootstrap-cet.mk
> @@ -0,0 +1,4 @@
> +# This option enables -fcf-protection -mcet for stage2 and stage3.
> +
> +STAGE2_CFLAGS += -fcf-protection -mcet
> +STAGE3_CFLAGS += -fcf-protection -mcet
> diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
> index da360da1c50..82a63607b2d 100644
> --- a/gcc/doc/install.texi
> +++ b/gcc/doc/install.texi
> @@ -2492,6 +2492,13 @@ useful to verify the full @option{-fcompare-debug}
> testing coverage. It
> must be used along with @code{bootstrap-debug-lean} and
> @code{bootstrap-debug-lib}.
>
> +@item @samp{bootstrap-cet}
> +This option enables Intel CET for host tools during bootstrapping.
> +@samp{BUILD_CONFIG=bootstrap-cet} is equivalent to adding
> +@option{-fcf-protection -mcet} to @samp{BOOT_CFLAGS}. This option
> +assumes that the host supports Intel CET (e.g. GNU assembler version
> +2.30 or later).
> +
> @item @samp{bootstrap-time}
> Arranges for the run time of each program started by the GCC driver,
> built in any stage, to be logged to @file{time.log}, in the top level of
> --
> 2.13.6
>
