From 0f009ecbdd591d0eefb671296b15b8b7c9f7fdc4 Mon Sep 17 00:00:00 2001
From: Christian Helmuth <christian.helmuth@genode-labs.com>
Date: Wed, 15 Jun 2022 09:33:19 +0200
Subject: [PATCH] lx_emul: add lx_emul_backtrace()

Issue #4542
---
 repos/dde_linux/src/include/lx_emul/debug.h |  3 +++
 repos/dde_linux/src/lib/lx_emul/debug.cc    | 11 +++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/repos/dde_linux/src/include/lx_emul/debug.h b/repos/dde_linux/src/include/lx_emul/debug.h
index d09aafcef5..5fc71c890a 100644
--- a/repos/dde_linux/src/include/lx_emul/debug.h
+++ b/repos/dde_linux/src/include/lx_emul/debug.h
@@ -1,6 +1,7 @@
 /*
  * \brief  Lx_emul support to debug Linux kernel ports
  * \author Stefan Kalkowski
+ * \author Christian Helmuth
  * \date   2021-03-16
  */
 
@@ -22,6 +23,8 @@ __attribute__((noreturn)) void lx_emul_trace_and_stop(const char * func);
 
 void lx_emul_trace(const char * func);
 
+void lx_emul_backtrace(void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/repos/dde_linux/src/lib/lx_emul/debug.cc b/repos/dde_linux/src/lib/lx_emul/debug.cc
index 7424ac76a5..6116fe4e2c 100644
--- a/repos/dde_linux/src/lib/lx_emul/debug.cc
+++ b/repos/dde_linux/src/lib/lx_emul/debug.cc
@@ -1,6 +1,7 @@
 /*
  * \brief  Lx_emul backend for Linux kernel' debug functions
  * \author Stefan Kalkowski
+ * \author Christian Helmuth
  * \date   2021-03-16
  */
 
@@ -17,10 +18,10 @@
 
 #include <lx_emul/debug.h>
 
+using namespace Genode;
+
 extern "C" void lx_emul_trace_and_stop(const char * func)
 {
-	using namespace Genode;
-
 	error("Function ", func, " not implemented yet!");
 	log("Backtrace follows:");
 	backtrace();
@@ -30,3 +31,9 @@ extern "C" void lx_emul_trace_and_stop(const char * func)
 
 
 extern "C" void lx_emul_trace(const char *) {}
+
+
+extern "C" void lx_emul_backtrace()
+{
+	backtrace();
+}