The sanitize unwind looks pretty and is just a function call away if we
are compiling with KASAN or UBSAN. Use it if available.
Signed-off-by: Ahmad Fatoum <ahmad@xxxxxx>
---
arch/sandbox/Kconfig | 6 ++++++
arch/sandbox/Makefile | 2 +-
arch/sandbox/lib/Makefile | 1 +
arch/sandbox/lib/unwind.c | 11 +++++++++++
4 files changed, 19 insertions(+), 1 deletion(-)
create mode 100644 arch/sandbox/lib/Makefile
create mode 100644 arch/sandbox/lib/unwind.c
diff --git a/arch/sandbox/Kconfig b/arch/sandbox/Kconfig
index d153846efa0f..1171e4b8f8e3 100644
--- a/arch/sandbox/Kconfig
+++ b/arch/sandbox/Kconfig
@@ -12,3 +12,9 @@ config LINUX
bool
default y
select GENERIC_FIND_NEXT_BIT
+
+config SANDBOX_UNWIND
+ bool
+ default y
+ select ARCH_HAS_STACK_DUMP
+ depends on UBSAN || KASAN
diff --git a/arch/sandbox/Makefile b/arch/sandbox/Makefile
index 780783a1e08c..62f6be745a76 100644
--- a/arch/sandbox/Makefile
+++ b/arch/sandbox/Makefile
@@ -51,7 +51,7 @@ cmd_barebox__ = $(CC) -o $@ -Wl,-T,$(barebox-lds) \
-Wl,--start-group $(barebox-common) -Wl,--end-group \
-lrt -lpthread $(SDL_LIBS) $(FTDI1_LIBS)
-common-y += $(BOARD) arch/sandbox/os/
+common-y += $(BOARD) arch/sandbox/os/ arch/sandbox/lib/
common-$(CONFIG_OFTREE) += arch/sandbox/dts/
diff --git a/arch/sandbox/lib/Makefile b/arch/sandbox/lib/Makefile
new file mode 100644
index 000000000000..b32ca6aaf804
--- /dev/null
+++ b/arch/sandbox/lib/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_HAS_STACK_DUMP) += unwind.o
diff --git a/arch/sandbox/lib/unwind.c b/arch/sandbox/lib/unwind.c
new file mode 100644
index 000000000000..15a2798cc404
--- /dev/null
+++ b/arch/sandbox/lib/unwind.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright 2019 Ahmad Fatoum
+
+#include <common.h>
+
+void __sanitizer_print_stack_trace(void);
+
+void dump_stack(void)
+{
+ __sanitizer_print_stack_trace();
+}
--
2.20.1
_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox
