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?
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
