To simplify debugging, let's allow the user to override the default log
level from the command line.

Signed-off-by: Ahmad Fatoum <[email protected]>
---
 arch/sandbox/os/common.c | 37 ++++++++++++++++++++++++++++++++++---
 1 file changed, 34 insertions(+), 3 deletions(-)

diff --git a/arch/sandbox/os/common.c b/arch/sandbox/os/common.c
index d8bb345614ac..7067c94d9b45 100644
--- a/arch/sandbox/os/common.c
+++ b/arch/sandbox/os/common.c
@@ -20,6 +20,7 @@
  * files here...
  */
 #define _GNU_SOURCE
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -46,6 +47,12 @@
 #include <mach/linux.h>
 #include <mach/hostfile.h>
 
+#ifdef CONFIG_CONSOLE_NONE
+int __attribute__((unused)) barebox_loglevel;
+#else
+extern int barebox_loglevel;
+#endif
+
 #define DELETED_OFFSET (sizeof(" (deleted)") - 1)
 
 void __sanitizer_set_death_callback(void (*callback)(void));
@@ -506,6 +513,8 @@ const char *barebox_cmdline_get(void)
 
 static void print_usage(const char*);
 
+#define OPT_LOGLEVEL           (CHAR_MAX + 1)
+
 static struct option long_options[] = {
        {"help",     0, 0, 'h'},
        {"malloc",   1, 0, 'm'},
@@ -518,6 +527,9 @@ static struct option long_options[] = {
        {"stdinout", 1, 0, 'B'},
        {"xres",     1, 0, 'x'},
        {"yres",     1, 0, 'y'},
+#ifndef CONFIG_CONSOLE_NONE
+       {"loglevel", 1, 0, OPT_LOGLEVEL},
+#endif
        {0, 0, 0, 0},
 };
 
@@ -528,7 +540,7 @@ int main(int argc, char *argv[])
        void *ram;
        int opt, ret, fd, fd2;
        int malloc_size = CONFIG_MALLOC_SIZE;
-       int fdno = 0, envno = 0, option_index = 0;
+       int loglevel = -1, fdno = 0, envno = 0, option_index = 0;
        char *new_cmdline;
        char *aux;
 
@@ -551,6 +563,9 @@ int main(int argc, char *argv[])
                case 'm':
                        malloc_size = strtoul(optarg, NULL, 0);
                        break;
+               case OPT_LOGLEVEL:
+                       loglevel = strtoul(optarg, NULL, 0);
+                       break;
                case 'i':
                        break;
                case 'c':
@@ -665,6 +680,10 @@ int main(int argc, char *argv[])
        barebox_register_console(fileno(stdin), fileno(stdout));
 
        rawmode();
+
+       if (loglevel >= 0)
+               barebox_loglevel = loglevel;
+
        start_barebox();
 
        /* never reached */
@@ -705,7 +724,19 @@ static void print_usage(const char *prgname)
 "                       stdin and stdout. <filein> and <fileout> can be 
regular\n"
 "                       files or FIFOs.\n"
 "  -x, --xres=<res>     SDL width.\n"
-"  -y, --yres=<res>     SDL height.\n",
-       prgname
+"  -y, --yres=<res>     SDL height.\n"
+#ifndef CONFIG_CONSOLE_NONE
+"      --loglevel=<num> Default log level to use, where <num> is one of:\n"
+"                        0    system is unusable (emerg)\n"
+"                        1    action must be taken immediately (alert)\n"
+"                        2    critical conditions (crit)\n"
+"                        3    error conditions (err)\n"
+"                        4    warning conditions (warn)\n"
+"                        5    normal but significant condition (notice)\n"
+"                        6    informational (info)\n"
+"                        7    debug-level messages (debug)\n"
+"                        8    verbose debug messages (vdebug)\n"
+#endif
+       , prgname
        );
 }
-- 
2.39.5


Reply via email to