On 2025-09-24 16:20:50+0200, Benjamin Berg wrote:
From: Benjamin Berg benjamin.berg@intel.com
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 benjamin.berg@intel.com
Acked-by: Thomas Weißschuh linux@weissschuh.net
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