On 2025-09-24 16:20:50+0200, Benjamin Berg wrote: > From: Benjamin Berg <[email protected]> > > There is no errno variable when NOLIBC_IGNORE_ERRNO is defined. As such, > simply print the message with "unknown error" rather than the integer > value of errno. > > Fixes: acab7bcdb1bc ("tools/nolibc/stdio: add perror() to report the errno > value") > Signed-off-by: Benjamin Berg <[email protected]>
Acked-by: Thomas Weißschuh <[email protected]> > > --- > v3: > - Change the message instead of removing perror entirely > --- > tools/include/nolibc/stdio.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h > index 7630234408c5..724d05ce6962 100644 > --- a/tools/include/nolibc/stdio.h > +++ b/tools/include/nolibc/stdio.h > @@ -600,7 +600,11 @@ int sscanf(const char *str, const char *format, ...) > static __attribute__((unused)) > void perror(const char *msg) > { > +#ifdef NOLIBC_IGNORE_ERRNO > + fprintf(stderr, "%s%sunknown error\n", (msg && *msg) ? msg : "", (msg > && *msg) ? ": " : ""); > +#else > fprintf(stderr, "%s%serrno=%d\n", (msg && *msg) ? msg : "", (msg && > *msg) ? ": " : "", errno); > +#endif > } > > static __attribute__((unused)) > -- > 2.51.0 >
