On Tue, Mar 08, 2011 at 12:24:51PM +0100, Sascha Hauer wrote:
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> ---
> arch/arm/Kconfig | 10 ++
> arch/arm/Makefile | 4 +
> arch/arm/cpu/interrupts.c | 4 +
> arch/arm/lib/Makefile | 2 +-
> arch/arm/lib/barebox.lds.S | 16 ++
> arch/arm/lib/unwind.c | 344 ++++++++++++++++++++++++++++++++++++++++++++
> 6 files changed, 379 insertions(+), 1 deletions(-)
> create mode 100644 arch/arm/lib/unwind.c
And here are the missing pieces...
8<--------------------------------------
commit 41059912043f6ce6209eb6460f5b8509aa956c60
Author: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Date: Tue Mar 8 16:13:25 2011 +0100
add to stacktrace support
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
diff --git a/arch/arm/include/asm/stacktrace.h b/arch/arm/include/asm/stacktrace.h
new file mode 100644
index 0000000..10f70e1
--- /dev/null
+++ b/arch/arm/include/asm/stacktrace.h
@@ -0,0 +1,16 @@
+#ifndef __ASM_STACKTRACE_H
+#define __ASM_STACKTRACE_H
+
+struct stackframe {
+ unsigned long fp;
+ unsigned long sp;
+ unsigned long lr;
+ unsigned long pc;
+};
+
+extern int unwind_frame(struct stackframe *frame);
+extern void walk_stackframe(struct stackframe *frame,
+ int (*fn)(struct stackframe *, void *), void *data);
+
+#endif /* __ASM_STACKTRACE_H */
+
diff --git a/arch/arm/include/asm/unwind.h b/arch/arm/include/asm/unwind.h
new file mode 100644
index 0000000..1bc2a7c
--- /dev/null
+++ b/arch/arm/include/asm/unwind.h
@@ -0,0 +1,54 @@
+/*
+ * arch/arm/include/asm/unwind.h
+ *
+ * Copyright (C) 2008 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __ASM_UNWIND_H
+#define __ASM_UNWIND_H
+
+#ifndef __ASSEMBLY__
+
+/* Unwind reason code according the the ARM EABI documents */
+enum unwind_reason_code {
+ URC_OK = 0, /* operation completed successfully */
+ URC_CONTINUE_UNWIND = 8,
+ URC_FAILURE = 9 /* unspecified failure of some kind */
+};
+
+struct unwind_idx {
+ unsigned long addr;
+ unsigned long insn;
+};
+
+struct unwind_table {
+ struct list_head list;
+ struct unwind_idx *start;
+ struct unwind_idx *stop;
+ unsigned long begin_addr;
+ unsigned long end_addr;
+};
+
+extern struct unwind_table *unwind_table_add(unsigned long start,
+ unsigned long size,
+ unsigned long text_addr,
+ unsigned long text_size);
+extern void unwind_table_del(struct unwind_table *tab);
+extern void unwind_backtrace(struct pt_regs *regs);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_UNWIND_H */
--
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