Add dmesg command that can be used to dump the syslog

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4382 42af7a65-404d-4744-a932-0658087f49c3

7 files changed, 28 insertions, 12 deletions

diff --git a/nuttx/drivers/ramlog.c b/nuttx/drivers/ramlog.c
index 0245e6051..fd94f5bf4 100644
--- a/nuttx/drivers/ramlog.c
+++ b/nuttx/drivers/ramlog.c
@@ -617,8 +617,8 @@ int ramlog_consoleinit(void)
 
   sem_init(&priv->rl_exclsem, 0, 1);
   sem_init(&priv->rl_waitsem, 0, 0);
-  priv->rl_bufsize = g_sysbuffer;
-  priv->rl_buffer  = CONFIG_RAMLOG_CONSOLE_BUFSIZE;
+  priv->rl_bufsize = CONFIG_RAMLOG_CONSOLE_BUFSIZE;
+  priv->rl_buffer  = g_sysbuffer;
 
   /* Register the console character driver */
 
@@ -657,8 +657,8 @@ int ramlog_sysloginit(void)
 
   sem_init(&priv->rl_exclsem, 0, 1);
   sem_init(&priv->rl_waitsem, 0, 0);
-  priv->rl_bufsize = g_sysbuffer;
-  priv->rl_buffer  = CONFIG_RAMLOG_CONSOLE_BUFSIZE;
+  priv->rl_bufsize = CONFIG_RAMLOG_CONSOLE_BUFSIZE;
+  priv->rl_buffer  = g_sysbuffer;
 
   return register_driver("/dev/syslog", &g_ramlogfops, 0666, priv);
 }
@@ -681,7 +681,7 @@ int ramlog_sysloginit(void)
 int ramlog_putc(int ch)
 {
   FAR struct ramlog_dev_s *priv = &g_sysdev;
-  (void)ramlog_addchar(priv, ch)
+  (void)ramlog_addchar(priv, ch);
   return ch;
 }
 #endif
diff --git a/nuttx/include/nuttx/ramlog.h b/nuttx/include/nuttx/ramlog.h
index d1b9dea97..a800c077f 100644
--- a/nuttx/include/nuttx/ramlog.h
+++ b/nuttx/include/nuttx/ramlog.h
@@ -98,6 +98,10 @@
 #  undef CONFIG_RAMLOG_SYSLOG
 #endif
 
+#ifndef CONFIG_RAMLOG_CONSOLE_BUFSIZE
+#  define CONFIG_RAMLOG_CONSOLE_BUFSIZE 1024
+#endif
+
 /****************************************************************************
  * Public Data
  ****************************************************************************/
@@ -164,7 +168,7 @@ EXTERN int ramlog_consoleinit(void)
  ****************************************************************************/
 
 #if !defined(CONFIG_RAMLOG_CONSOLE) && defined(CONFIG_RAMLOG_SYSLOG)
-EXTERN int ramlog_sysloginit(void)
+EXTERN int ramlog_sysloginit(void);
 #endif
 
 /****************************************************************************
diff --git a/nuttx/include/nuttx/streams.h b/nuttx/include/nuttx/streams.h
index 8317eacbd..38ceb584c 100644
--- a/nuttx/include/nuttx/streams.h
+++ b/nuttx/include/nuttx/streams.h
@@ -284,7 +284,7 @@ EXTERN void lib_nulloutstream(FAR struct lib_outstream_s *nulloutstream);
  ****************************************************************************/
 
 #ifdef CONFIG_SYSLOG
-EXTERN void lib_sylogstream(FAR struct lib_outstream_s *stream);
+EXTERN void lib_syslogstream(FAR struct lib_outstream_s *stream);
 #endif
 
 #undef EXTERN
diff --git a/nuttx/lib/stdio/Make.defs b/nuttx/lib/stdio/Make.defs
index 690c83641..ddccaca71 100644
--- a/nuttx/lib/stdio/Make.defs
+++ b/nuttx/lib/stdio/Make.defs
@@ -52,7 +52,7 @@ STDIO_SRCS += lib_fopen.c lib_fclose.c lib_fread.c lib_libfread.c lib_fseek.c \
 endif
 endif
 
-ifdef ($(CONFIG_SYSLOG)
+ifeq ($(CONFIG_SYSLOG),y)
 STDIO_SRCS += lib_syslogstream.c
 endif
 
diff --git a/nuttx/lib/stdio/lib_lowprintf.c b/nuttx/lib/stdio/lib_lowprintf.c
index 0314a27f0..e27a5021b 100644
--- a/nuttx/lib/stdio/lib_lowprintf.c
+++ b/nuttx/lib/stdio/lib_lowprintf.c
@@ -42,6 +42,10 @@
 #include <debug.h>
 #include "lib_internal.h"
 
+/* This interface can only be used from within the kernel */
+
+#if !defined(CONFIG_NUTTX_KERNEL) || defined(__KERNEL__)
+
 /****************************************************************************
  * Definitions
  ****************************************************************************/
@@ -113,4 +117,5 @@ int lib_lowprintf(const char *fmt, ...)
   return ret;
 }
 
-#endif /* CONFIG_ARCH_LOWPUTC || CONFIG_SYSLOG*/
+#endif /* CONFIG_ARCH_LOWPUTC || CONFIG_SYSLOG */
+#endif /* __KERNEL__ */
diff --git a/nuttx/lib/stdio/lib_rawprintf.c b/nuttx/lib/stdio/lib_rawprintf.c
index d738b212a..a28e6b695 100644
--- a/nuttx/lib/stdio/lib_rawprintf.c
+++ b/nuttx/lib/stdio/lib_rawprintf.c
@@ -42,9 +42,16 @@
 #include "lib_internal.h"
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
+/* Some output destinations are only available from within the kernel */
+
+#if defined(CONFIG_NUTTX_KERNEL) && !defined(__KERNEL__)
+#  undef CONFIG_SYSLOG
+#  undef CONFIG_ARCH_LOWPUTC
+#endif
+
 /****************************************************************************
  * Private Type Declarations
  ****************************************************************************/
diff --git a/nuttx/lib/stdio/lib_syslogstream.c b/nuttx/lib/stdio/lib_syslogstream.c
index 0b5a95144..3da066408 100644
--- a/nuttx/lib/stdio/lib_syslogstream.c
+++ b/nuttx/lib/stdio/lib_syslogstream.c
@@ -75,7 +75,7 @@ static void syslogstream_putc(FAR struct lib_outstream_s *this, int ch)
  ****************************************************************************/
 
 /****************************************************************************
- * Name: lib_sylogstream
+ * Name: lib_syslogstream
  *
  * Description:
  *   Initializes a stream for use with the coinfigured syslog interface.
@@ -89,7 +89,7 @@ static void syslogstream_putc(FAR struct lib_outstream_s *this, int ch)
  *
  ****************************************************************************/
 
-void lib_sylogstream(FAR struct lib_outstream_s *stream)
+void lib_syslogstream(FAR struct lib_outstream_s *stream)
 {
   stream->put   = syslogstream_putc;
 #ifdef CONFIG_STDIO_LINEBUFFER