nrfdemo

1 files changed, 125 insertions, 0 deletions

diff --git a/nrfdemo/builddk/tfm/api_ns/platform/include/exception_info.h b/nrfdemo/builddk/tfm/api_ns/platform/include/exception_info.h
new file mode 100644
index 0000000..9502008
--- /dev/null
+++ b/nrfdemo/builddk/tfm/api_ns/platform/include/exception_info.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2021, Nordic Semiconductor ASA. All rights reserved.
+ * Copyright (c) 2023, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __EXCEPTION_INFO_H__
+#define __EXCEPTION_INFO_H__
+
+#include <stdint.h>
+
+#if defined(__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
+#define TRUSTZONE_PRESENT
+#endif
+
+#if defined(__ARM_ARCH_8_1M_MAIN__) || defined(__ARM_ARCH_8M_MAIN__) \
+    || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
+#define FAULT_STATUS_PRESENT
+#endif
+
+/* Exception type number (subtract 16 for IRQn) */
+#define EXCEPTION_TYPE_HARDFAULT      3
+#define EXCEPTION_TYPE_MEMMANAGEFAULT 4
+#define EXCEPTION_TYPE_BUSFAULT       5
+#define EXCEPTION_TYPE_USAGEFAULT     6
+#define EXCEPTION_TYPE_SECUREFAULT    7
+
+/* Store context for an exception, and print an error message with the context.
+ *
+ * @param[in]  exception_type  One of the EXCEPTION_TYPE_* values defined above. Any
+ *                             other value will result in printing "Unknown".
+ */
+#ifdef TFM_EXCEPTION_INFO_DUMP
+
+struct exception_info_t {
+    uint32_t VECTACTIVE;        /* Active exception number. */
+    uint32_t EXC_RETURN;        /* EXC_RETURN value in LR. */
+    uint32_t MSP;               /* (Secure) MSP. */
+    uint32_t PSP;               /* (Secure) PSP. */
+    uint32_t *EXC_FRAME;        /* Exception frame on stack. */
+    uint32_t EXC_FRAME_COPY[8]; /* Copy of the basic exception frame. */
+    uint32_t CALLEE_SAVED_COPY[8]; /* Copy of the callee saved registers. */
+    uint32_t xPSR;              /* Program Status Registers. */
+
+#ifdef FAULT_STATUS_PRESENT
+    uint32_t CFSR;              /* Configurable Fault Status Register. */
+    uint32_t HFSR;              /* Hard Fault Status Register. */
+    uint32_t BFAR;              /* Bus Fault address register. */
+    uint32_t BFARVALID;         /* Whether BFAR contains a valid address. */
+    uint32_t MMFAR;             /* MemManage Fault address register. */
+    uint32_t MMARVALID;         /* Whether MMFAR contains a valid address. */
+#ifdef TRUSTZONE_PRESENT
+    uint32_t SFSR;              /* SecureFault Status Register. */
+    uint32_t SFAR;              /* SecureFault Address Register. */
+    uint32_t SFARVALID;         /* Whether SFAR contains a valid address. */
+#endif
+#endif
+};
+
+/**
+ * \brief Get a pointer to the current exception_info_t context
+ *
+ * \return  A pointer to the exception_info_t context or NULL if no context
+ *          has been stored
+ */
+void tfm_exception_info_get_context(struct exception_info_t *ctx);
+
+/* Store context for an exception, then print the info.
+ * Call EXCEPTION_INFO() instead of calling this directly.
+ */
+void store_and_dump_context(uint32_t MSP_in, uint32_t PSP_in, uint32_t LR_in,
+                            uint32_t *callee_saved);
+
+/* IAR Specific */
+#if defined(__ICCARM__)
+#pragma required = store_and_dump_context
+#endif
+
+#if defined(__ARM_ARCH_8M_BASE__) || defined(__ARCM_ARCH_V6_M__)
+#define EXCEPTION_INFO()                   \
+    __ASM volatile(                        \
+        "MRS    R0, MSP\n"                 \
+        "MRS    R1, PSP\n"                 \
+        "MOV    R2, R11\n"                 \
+        "MOV    R3, R10\n"                 \
+        "PUSH   {R2, R3}\n"                \
+        "MOV    R2, R9\n"                  \
+        "MOV    R3, R8\n"                  \
+        "PUSH   {R2, R3}\n"                \
+        "PUSH   {R4-R7}\n"                 \
+        "MOV    R3, SP\n"                  \
+        "MOV    R2, LR\n"                  \
+        "BL     store_and_dump_context\n"  \
+        "ADD    SP, #32\n"                 \
+    )
+#elif defined(__ARM_ARCH_8M_MAIN__) || defined(__ARM_ARCH_8_1M_MAIN__) || \
+      defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
+#define EXCEPTION_INFO()                   \
+    __ASM volatile(                        \
+        "MRS    R0, MSP\n"                 \
+        "MRS    R1, PSP\n"                 \
+        "PUSH   {R4-R11}\n"                \
+        "MOV    R3, SP\n"                  \
+        "MOV    R2, LR\n"                  \
+        "BL     store_and_dump_context\n"  \
+        "ADD    SP, #32\n"                 \
+    )
+#else
+/* Unhandled arch, call store_and_dump_context with callee_saved = NULL */
+#define EXCEPTION_INFO()                   \
+    __ASM volatile(                        \
+        "MRS    R0, MSP\n"                 \
+        "MRS    R1, PSP\n"                 \
+        "MOV    R2, LR\n"                  \
+        "MOV    R3, #0\n"                  \
+        "BL     store_and_dump_context\n"  \
+    )
+#endif
+
+#else /* TFM_EXCEPTION_INFO_DUMP */
+#define EXCEPTION_INFO()
+#endif /* TFM_EXCEPTION_INFO_DUMP */
+
+#endif /* __EXCEPTION_INFO_H__ */