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[arm-embedded] Add ARMv8-M Security Extensions support to Cortex-M23 and Cortex-M33

Message ID f3aa7e19-d56d-a7b4-5411-f2161e355c15@foss.arm.com
State New
Headers show

Commit Message

Thomas Preudhomme Dec. 13, 2016, 5:35 p.m. UTC 
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.preudhomme@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
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Patch

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)