Hi,
We have decided to apply the following patch to the embedded-6-branch to enable
ARMv8-M Security Extensions to ARM Cortex-M23 and ARM Cortex-M33.
ChangeLog entry is as follows:
*** gcc/ChangeLog ***
2016-12-13 Thomas Preud'homme <thomas.preudho...@arm.com>
* config/arm/arm-cores.def (cortex-m23): Add FL2_CMSE flag.
(cortex-m33): Likewise.
I've checked that gcc.target/arm/cmse/cmse-1.c compiles with -mcpu=cortex-m23
-mcmse and -mcpu=cortex-m33 and that it does not when trying with
-mcpu=cortex-m0 -mcmse or -mcpu=cortex-m7 -mcmse.
Best regards,
Thomas
diff --git a/gcc/config/arm/arm-cores.def b/gcc/config/arm/arm-cores.def
index e5b492897a7b39ade9286e6b8b15934277a6848e..add6b21ee5238aab5759d17f3de1aa5dff928d7f 100644
--- a/gcc/config/arm/arm-cores.def
+++ b/gcc/config/arm/arm-cores.def
@@ -166,9 +166,9 @@ ARM_CORE("cortex-a15.cortex-a7", cortexa15cortexa7, cortexa7, 7A, ARM_FSET_MAKE_
ARM_CORE("cortex-a17.cortex-a7", cortexa17cortexa7, cortexa7, 7A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a12)
/* V8 Architecture Processors */
-ARM_CORE("cortex-m23", cortexm23, cortexm23, 8M_BASE, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH8M_BASE), v6m)
+ARM_CORE("cortex-m23", cortexm23, cortexm23, 8M_BASE, ARM_FSET_MAKE (FL_LDSCHED | FL_FOR_ARCH8M_BASE, FL2_CMSE), v6m)
ARM_CORE("cortex-a32", cortexa32, cortexa53, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a35)
-ARM_CORE("cortex-m33", cortexm33, cortexm33, 8M_MAIN, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_ARCH7EM | FL_FOR_ARCH8M_MAIN), v7m)
+ARM_CORE("cortex-m33", cortexm33, cortexm33, 8M_MAIN, ARM_FSET_MAKE (FL_LDSCHED | FL_ARCH7EM | FL_FOR_ARCH8M_MAIN, FL2_CMSE), v7m)
ARM_CORE("cortex-a35", cortexa35, cortexa53, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a35)
ARM_CORE("cortex-a53", cortexa53, cortexa53, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a53)
ARM_CORE("cortex-a57", cortexa57, cortexa57, 8A, ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a57)
