[GitHub] [mynewt-core] kasjer commented on a change in pull request #2408: gdbmacros: Add script to extract cmac core

[GitBox <gi...@apache.org>]

kasjer commented on a change in pull request #2408:
URL: https://github.com/apache/mynewt-core/pull/2408#discussion_r528510946



##########
File path: compiler/gdbmacros/cmac_core_dump.gdb
##########
@@ -0,0 +1,97 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+#
+# Source this script to gdb that has loaded DA1469x core file
+#
+# It will produce cmac_core.elf file that will have RAM data from CMAC Cortex-M0
+# then use this cmac_core.elf along with cmac elf file produced during build to analyze core dump
+#
+
+define cmac_core_dump
+
+    set $_rom_size = ((struct cmac_image_info *)(_binary_cmac_rom_bin_start+0x80))->offset_data
+    set $_cmac_ram_start = ((struct cmac_image_info *)(_binary_cmac_rom_bin_start+0x80))->offset_data + _binary_cmac_ram_bin_start
+    set $_cmac_ram_end = $_cmac_ram_start + ((struct cmac_image_info *)(_binary_cmac_rom_bin_start+0x80))->size_ram - ((struct cmac_image_info *)(_binary_cmac_rom_bin_start+0x80))->offset_data
+
+    set $_regs_size = 0xA8
+    set $_ram_size =  $_cmac_ram_end - $_cmac_ram_start
+
+    set $_mem = $_cmac_ram_start + 0x100
+
+    set $_lr = g_cmac_shared_data->coredump.lr
+    set $_pc = g_cmac_shared_data->coredump.pc
+    set $_tp = 0
+
+    # Find exception frame by LR nad PC pair
+    # NOTE: this could be avoided if Trap Frame pointer was also stored in shared data.
+    find /w /1 $_cmac_ram_start, +$_ram_size, $_lr, $_pc
+    # exception pointer from address of LR
+    set $_ep = (uint32_t *)($_ - 20)
+    # SP in cmac address space
+    set $_cmac_sp = (uint32_t *)((int)$_ep - (int)$_cmac_ram_start + 0x20000000)
+
+    # Exception in system mode, Trap Frame just before exception frame
+    if $_ep[-1] == 0xFFFFFFF1 || $_ep[-1] == 0xFFFFFFF9
+        set $_tf = $_ep - 10
+    else

Review comment:
       fixed




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