yamt commented on code in PR #15320:
URL: https://github.com/apache/nuttx/pull/15320#discussion_r1896999271
##########
libs/libc/stdio/lib_libvsprintf.c:
##########
@@ -911,6 +915,11 @@ static int vsprintf_internal(FAR struct lib_outstream_s
*stream,
size = 1;
goto str_lpad;
+ case 'm': /* Print error message (%m) */
+ pnt = strerror(saved_errno);
+ size = strlen(pnt); /* Adjusting the size is not supported by %m */
+ goto str_lpad;
+
Review Comment:
> > probably you can avoid errno access depending on the context.
> > (using `up_interrupt_context` etc)
>
> That won't tell you if you are running in a kernel thread or if you are in
a system call.
sure, besides that, i guess you should check OSINIT_xxx as well.
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