Introduce logging to disk feature into rockbox.

Logs information, errors, etc to disk using the register_storage_idle_func
mechanism to write to the disk when available.  Currently, this is disabled
in normal builds, but can be enabled by adding ROCKBOX_HAS_LOGDISKF to the
config file.  By default, it uses a 2KB buffer and drops text if the buffer
overflows.

The system includes a simple warning level mechanism that can be used to by
default exclude non-serious errors from logging on release builds.

Change-Id: I0a3d186a93625c7c93dae37b993a0d37e5a3a925
Reviewed-on: http://gerrit.rockbox.org/288
Reviewed-by: Jonathan Gordon <rockbox@jdgordon.info>
Tested-by: Michael Giacomelli <mgiacomelli@gmail.com>
Reviewed-by: Michael Giacomelli <mgiacomelli@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/apps/main.c b/apps/main.c
index 4ce72497d7..6b6566c7ca 100644
--- a/apps/main.c
+++ b/apps/main.c
@@ -76,6 +76,7 @@
 #include "skin_engine/skin_engine.h"
 #include "statusbar-skinned.h"
 #include "bootchart.h"
+#include "logdiskf.h"
 #if (CONFIG_PLATFORM & PLATFORM_ANDROID)
 #include "notification.h"
 #endif
@@ -489,6 +490,10 @@ static void init(void)
 #endif
 #endif
 
+#ifdef ROCKBOX_HAS_LOGDISKF
+    init_logdiskf();
+#endif
+
 #if CONFIG_RTC
     rtc_init();
 #endif