tools/nolibc: Rename the 'errnum' parameter to strerror()

Change the parameter variable name from 'errno' to 'errnum'.
Matches any documentation and avoids any issues that might happen
if errno is actually a #define (which is not uncommon).

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260308113742.12649-5-david.laight.linux@gmail.com
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>

diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h
index b324fc438ea0289aa2986b1bf1e5ec507990ced3..985e7f0834bf13ddbbf55203a331928a8363fbc9 100644 (file)
--- a/tools/include/nolibc/stdio.h
+++ b/tools/include/nolibc/stdio.h
@@ -734,7 +734,7 @@ int strerror_r(int errnum, char *buf, size_t buflen)
 }
 
 static __attribute__((unused))
-const char *strerror(int errno)
+const char *strerror(int errnum)
 {
        static char buf[18];
        char *b = buf;
@@ -743,7 +743,7 @@ const char *strerror(int errno)
        _NOLIBC_OPTIMIZER_HIDE_VAR(b);
 
        /* Use strerror_r() to avoid having the only .data in small programs. */
-       strerror_r(errno, b, sizeof(buf));
+       strerror_r(errnum, b, sizeof(buf));
 
        return b;
 }