xtensa: coredump: support dumping privilege stack

Adds the bits to support dumping privilege stack during coredump. Signed-off-by: Daniel Leung <daniel.leung@intel.com>
zephyrproject-rtos · Sep 17, 2024 · 63dbb51 · 63dbb51
1 parent e7bc619
commit 63dbb51
Show file tree

Hide file tree

Showing 2 changed files with 17 additions and 0 deletions.
diff --git a/arch/xtensa/core/coredump.c b/arch/xtensa/core/coredump.c
@@ -5,6 +5,7 @@
  */
 
 #include <string.h>
+#include <zephyr/kernel.h>
 #include <zephyr/debug/coredump.h>
 #include <xtensa_asm2_context.h>
 #include <zephyr/offsets.h>
@@ -189,3 +190,18 @@ uint16_t arch_coredump_tgt_code_get(void)
 {
  return COREDUMP_TGT_XTENSA;
 }
+
+#if defined(CONFIG_DEBUG_COREDUMP_DUMP_THREAD_PRIV_STACK)
+void arch_coredump_priv_stack_dump(struct k_thread *thread)
+{
+ struct xtensa_thread_stack_header *hdr_stack_obj;
+ uintptr_t start_addr, end_addr;
+
+ hdr_stack_obj = (struct xtensa_thread_stack_header *)thread->stack_obj;
+
+ start_addr = (uintptr_t)&hdr_stack_obj->privilege_stack[0];
+ end_addr = start_addr + sizeof(hdr_stack_obj->privilege_stack);
+
+ coredump_memory_dump(start_addr, end_addr);
+}
+#endif /* CONFIG_DEBUG_COREDUMP_DUMP_THREAD_PRIV_STACK */
diff --git a/boards/qemu/xtensa/Kconfig b/boards/qemu/xtensa/Kconfig
@@ -6,4 +6,5 @@
 config BOARD_QEMU_XTENSA
  select QEMU_TARGET
  select ARCH_SUPPORTS_COREDUMP
+ select ARCH_SUPPORTS_COREDUMP_PRIV_STACKS
  select XTENSA_MMU if BOARD_QEMU_XTENSA_DC233C_MMU