3 files changed, 55 insertions, 0 deletions

diff --git a/firmware/export/logf.h b/firmware/export/logf.h
index b57ae91872..e881e7e496 100644
--- a/firmware/export/logf.h
+++ b/firmware/export/logf.h
@@ -39,6 +39,8 @@ extern bool logfwrap;
 #define logf _logf
 void _logf(const char *format, ...) ATTRIBUTE_PRINTF(1, 2);
 
+void logf_panic_dump(int *y);
+
 #else /* !ROCKBOX_HAS_LOGF */
 
 /* built without logf() support enabled, replace logf() by DEBUGF() */
diff --git a/firmware/logf.c b/firmware/logf.c
index fadfc9bb13..a24a635570 100644
--- a/firmware/logf.c
+++ b/firmware/logf.c
@@ -32,6 +32,7 @@
 #include "config.h"
 #include "system.h"
 #include "font.h"
+#include "lcd.h"
 #ifdef HAVE_REMOTE_LCD
 #include "lcd-remote.h"
 #endif
@@ -254,6 +255,54 @@ void _logf(const char *fmt, ...)
 }
 #endif
 
+void logf_panic_dump(int *y)
+{
+    int i;
+    /* nothing to print ? */
+    if(logfindex == 0 && !logfwrap)
+    {
+        lcd_puts(1, (*y)++, "no logf data");
+        lcd_update();
+        return;
+    }
+
+    lcd_puts(1, (*y)++, "start of logf data");
+    lcd_update();
+    i = logfindex - 2; /* The last actual characer (i.e. not '\0') */
+
+    while(i >= 0)
+    {
+        while(logfbuffer[i] != 0 && i>=0)
+        {
+            i--;
+        }
+        if(strlen( &logfbuffer[i + 1]) > 0)
+        {
+            lcd_puts(1, (*y)++, &logfbuffer[i + 1]);
+            lcd_update();
+        }
+        i--;
+    }
+    if(logfwrap)
+    {
+        i = MAX_LOGF_SIZE - 1;
+        while(i >= logfindex)
+        {
+            while(logfbuffer[i] != 0 && i >= logfindex)
+            {
+                i--;
+            }
+            if(strlen( &logfbuffer[i + 1]) > 0)
+            {
+                lcd_putsf(1, (*y)++, "%*s", (MAX_LOGF_SIZE-i) &logfbuffer[i + 1]);
+                lcd_update();
+            }
+        }
+        i--;
+    }
+    lcd_puts(1, (*y)++, "end of logf data");
+    lcd_update();
+}
 #endif
 
 #ifdef ROCKBOX_HAS_LOGDISKF
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