Print `last logf lines on panic().

If logf is enabled, panic() will print the last lines. On small
screens this is more or less useless, but on large screens it
can be very useful for debugging.

Change-Id: I26dfc76e9ac4a2ddc2def8db1616a04f943dbba3
Reviewed-on: http://gerrit.rockbox.org/709
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
Reviewed-by: Frank Gevaerts <frank@gevaerts.be>
Tested: Frank Gevaerts <frank@gevaerts.be>

1 files changed, 4 insertions, 0 deletions

diff --git a/firmware/panic.c b/firmware/panic.c
index 0d49847a19..3f01689922 100644
--- a/firmware/panic.c
+++ b/firmware/panic.c
@@ -30,6 +30,7 @@
 #include "led.h"
 #include "power.h"
 #include "system.h"
+#include "logf.h"
 
 #if defined(CPU_ARM)
 #include "gcc_extensions.h"
@@ -115,6 +116,9 @@ void panicf( const char *fmt, ...)
 #if defined(CPU_ARM)
     backtrace(pc, sp, &y);
 #endif
+#ifdef ROCKBOX_HAS_LOGF
+    logf_panic_dump(&y);
+#endif
 #else
     /* no LCD */
 #endif