It can be useful to dump the log into the file, e.g. when doing an
update from a USB flash drive with no serial peer attached.
Add a function to facilitate this.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
common/console_common.c | 20 ++++++++++++++++++++
include/printk.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/common/console_common.c b/common/console_common.c
index 3e0741572398..b611f4bf9781 100644
--- a/common/console_common.c
+++ b/common/console_common.c
@@ -182,6 +182,26 @@ static int console_common_init(void)
}
device_initcall(console_common_init);
+int log_writefile(const char *filepath)
+{
+ int ret = 0, nbytes = 0, fd = -1;
+ struct log_entry *log;
+
+ fd = open(filepath, O_WRONLY | O_CREAT | O_TRUNC);
+ if (fd < 0)
+ return -errno;
+
+ list_for_each_entry(log, &barebox_logbuf, list) {
+ ret = dputs(fd, log->msg);
+ if (ret < 0)
+ break;
+ nbytes += ret;
+ }
+
+ close(fd);
+ return ret < 0 ? ret : nbytes;
+}
+
void log_print(unsigned flags, unsigned levels)
{
struct log_entry *log;
diff --git a/include/printk.h b/include/printk.h
index 94a25ec9ebac..f83ad3bf07f0 100644
--- a/include/printk.h
+++ b/include/printk.h
@@ -141,6 +141,7 @@ extern void log_clean(unsigned int limit);
#define BAREBOX_LOG_PRINT_ALERT BIT(1)
#define BAREBOX_LOG_PRINT_EMERG BIT(0)
+int log_writefile(const char *filepath);
void log_print(unsigned flags, unsigned levels);
struct va_format {
--
2.29.2
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