feat(debug): add helpers for aborts on AARCH32
New helper functions are created to handle data & prefetch aborts
in AARCH32. They call platform functions, just like what
report_exception is doing.
As extended MSR/MRS instructions (to access lr_abt in monitor mode)
are only available if CPU (Armv7) has virtualization extension,
the functions branch to original report_exception handlers if this is
not the case.
Those new helpers are created mainly to distinguish data and prefetch
aborts, as they both share the same mode.
This adds 40 bytes of code.
Change-Id: I5dd31930344ad4e3a658f8a9d366a87a300aeb67
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/plat/common/aarch32/platform_helpers.S b/plat/common/aarch32/platform_helpers.S
index 5b9cb59..75cc456 100644
--- a/plat/common/aarch32/platform_helpers.S
+++ b/plat/common/aarch32/platform_helpers.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -8,6 +8,8 @@
#include <asm_macros.S>
.weak plat_report_exception
+ .weak plat_report_prefetch_abort
+ .weak plat_report_data_abort
.weak plat_reset_handler
.weak plat_disable_acp
.weak bl1_plat_prepare_exit
@@ -28,6 +30,24 @@
* each platform.
* -----------------------------------------------------
*/
+func plat_report_prefetch_abort
+ bx lr
+endfunc plat_report_prefetch_abort
+
+ /* -----------------------------------------------------
+ * Placeholder function which should be redefined by
+ * each platform.
+ * -----------------------------------------------------
+ */
+func plat_report_data_abort
+ bx lr
+endfunc plat_report_data_abort
+
+ /* -----------------------------------------------------
+ * Placeholder function which should be redefined by
+ * each platform.
+ * -----------------------------------------------------
+ */
func plat_reset_handler
bx lr
endfunc plat_reset_handler