diff options
| author | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2022-12-09 10:20:17 +0100 |
|---|---|---|
| committer | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2022-12-15 09:20:52 +0100 |
| commit | 7b968a2eb4358f958e4be3aedf462e250ba1749b (patch) | |
| tree | 7db2d0bf9301ca019372ffeffc179ec00779527e /spec/build/bsps/arm | |
| parent | bsps/atsam: Fix unidirectional SPI transfers (diff) | |
| download | rtems-7b968a2eb4358f958e4be3aedf462e250ba1749b.tar.bz2 | |
bsps/atsam: Add NULL pointer protection
Diffstat (limited to 'spec/build/bsps/arm')
| -rw-r--r-- | spec/build/bsps/arm/atsam/bspatsam.yml | 2 | ||||
| -rw-r--r-- | spec/build/bsps/arm/atsam/linkcmds.yml | 7 | ||||
| -rw-r--r-- | spec/build/bsps/arm/atsam/optnullsz.yml | 17 | ||||
| -rw-r--r-- | spec/build/bsps/arm/atsam/opttcmsz.yml | 3 |
4 files changed, 27 insertions, 2 deletions
diff --git a/spec/build/bsps/arm/atsam/bspatsam.yml b/spec/build/bsps/arm/atsam/bspatsam.yml index 6716bea248..679889d253 100644 --- a/spec/build/bsps/arm/atsam/bspatsam.yml +++ b/spec/build/bsps/arm/atsam/bspatsam.yml @@ -297,6 +297,8 @@ links: - role: build-dependency uid: optnocachesz - role: build-dependency + uid: optnullsz +- role: build-dependency uid: optoscmain - role: build-dependency uid: optqspiflashsz diff --git a/spec/build/bsps/arm/atsam/linkcmds.yml b/spec/build/bsps/arm/atsam/linkcmds.yml index fe6211f82f..d475b6a245 100644 --- a/spec/build/bsps/arm/atsam/linkcmds.yml +++ b/spec/build/bsps/arm/atsam/linkcmds.yml @@ -2,7 +2,8 @@ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause build-type: config-file content: | MEMORY { - ITCM : ORIGIN = 0x00000000, LENGTH = ${ATSAM_MEMORY_TCM_SIZE} + NULL : ORIGIN = 0x00000000, LENGTH = ${ATSAM_MEMORY_NULL_SIZE} + ITCM : ORIGIN = ${ATSAM_MEMORY_NULL_SIZE}, LENGTH = ((${ATSAM_MEMORY_TCM_SIZE} > ${ATSAM_MEMORY_NULL_SIZE}) ? (${ATSAM_MEMORY_TCM_SIZE} - ${ATSAM_MEMORY_NULL_SIZE}) : 0) INTFLASH : ORIGIN = 0x00400000, LENGTH = ${ATSAM_MEMORY_INTFLASH_SIZE} DTCM : ORIGIN = 0x20000000, LENGTH = ${ATSAM_MEMORY_TCM_SIZE} INTSRAM : ORIGIN = 0x20400000, LENGTH = ${ATSAM_MEMORY_INTSRAM_SIZE} - 2 * ${ATSAM_MEMORY_TCM_SIZE} - ${ATSAM_MEMORY_NOCACHE_SIZE} @@ -13,6 +14,10 @@ content: | /* Must be used only for MPU definitions */ + atsam_memory_null_begin = ORIGIN (NULL); + atsam_memory_null_end = ORIGIN (NULL) + LENGTH (NULL); + atsam_memory_null_size = LENGTH (NULL); + atsam_memory_itcm_begin = ORIGIN (ITCM); atsam_memory_itcm_end = ORIGIN (ITCM) + LENGTH (ITCM); atsam_memory_itcm_size = LENGTH (ITCM); diff --git a/spec/build/bsps/arm/atsam/optnullsz.yml b/spec/build/bsps/arm/atsam/optnullsz.yml new file mode 100644 index 0000000000..d992c286e7 --- /dev/null +++ b/spec/build/bsps/arm/atsam/optnullsz.yml @@ -0,0 +1,17 @@ +SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause +actions: +- get-integer: null +- env-assign: null +build-type: option +default: 0 +default-by-variant: [] +enabled-by: true +format: '{:#010x}' +links: [] +name: ATSAM_MEMORY_NULL_SIZE +description: | + Size of the NULL pointer protection area in bytes. This memory area reduces + the size of the ITCM available to the application. +type: build +copyrights: +- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) diff --git a/spec/build/bsps/arm/atsam/opttcmsz.yml b/spec/build/bsps/arm/atsam/opttcmsz.yml index 7e8b1121e8..da3e575f55 100644 --- a/spec/build/bsps/arm/atsam/opttcmsz.yml +++ b/spec/build/bsps/arm/atsam/opttcmsz.yml @@ -9,7 +9,8 @@ copyrights: default: 0 default-by-variant: [] description: | - size of tightly coupled memories (TCM) in bytes + Size of tightly coupled memories (TCM) in bytes. Note that the ITCM is + reduced by the ATSAM_MEMORY_NULL_SIZE option. DTCM is unaffected. enabled-by: true format: '{:#010x}' links: [] |