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[153.221.239.170]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-2babaac34a4sm20061215ad.16.2026.05.07.02.04.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 May 2026 02:04:09 -0700 (PDT) From: Daniel Palmer To: w@1wt.eu, linux@weissschuh.net Cc: david.laight.linux@gmail.com, linux-kernel@vger.kernel.org, Daniel Palmer Subject: [PATCH v4 2/3] tools/nolibc: Add statfs() Date: Thu, 7 May 2026 18:03:52 +0900 Message-ID: <20260507090353.356764-3-daniel@thingy.jp> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260507090353.356764-1-daniel@thingy.jp> References: <20260507090353.356764-1-daniel@thingy.jp> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add statfs(). Signed-off-by: Daniel Palmer --- tools/include/nolibc/Makefile | 1 + tools/include/nolibc/nolibc.h | 1 + tools/include/nolibc/sys/statfs.h | 50 +++++++++++++++++++++++++++++++ 3 files changed, 52 insertions(+) create mode 100644 tools/include/nolibc/sys/statfs.h diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile index 00fd2e566d75..e6281f58e6e2 100644 --- a/tools/include/nolibc/Makefile +++ b/tools/include/nolibc/Makefile @@ -60,6 +60,7 @@ all_files := \ sys/resource.h \ sys/select.h \ sys/stat.h \ + sys/statfs.h \ sys/syscall.h \ sys/sysmacros.h \ sys/time.h \ diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index faa94f247281..425cf87befdc 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -107,6 +107,7 @@ #include "sys/resource.h" #include "sys/select.h" #include "sys/stat.h" +#include "sys/statfs.h" #include "sys/syscall.h" #include "sys/sysmacros.h" #include "sys/time.h" diff --git a/tools/include/nolibc/sys/statfs.h b/tools/include/nolibc/sys/statfs.h new file mode 100644 index 000000000000..26976ac2e94a --- /dev/null +++ b/tools/include/nolibc/sys/statfs.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * statfs for NOLIBC + * Copyright (C) 2026 Daniel Palmer + */ + +/* make sure to include all global symbols */ +#include "../nolibc.h" + +#ifndef _NOLIBC_SYS_STATFS_H +#define _NOLIBC_SYS_STATFS_H + +#include "../sys.h" + +/* Some preprocessor hackery to get struct statfs to + * always be the 64bit one. + */ +#define statfs __nolibc_kernel_statfs +#define statfs64 __nolibc_kernel_statfs64 +#include +#undef statfs +#undef statfs64 + +#ifdef __NR_statfs64 +#define statfs __nolibc_kernel_statfs64 +#else +#define statfs __nolibc_kernel_statfs +#endif + +/* + * statfs(const char *path, struct statfs *buf); + */ + +static __attribute__((unused)) +int _sys_statfs(const char *path, struct statfs *buf) +{ +#ifdef __NR_statfs64 + return __nolibc_syscall3(__NR_statfs64, path, sizeof(*buf), buf); +#else + return __nolibc_syscall2(__NR_statfs, path, buf); +#endif +} + +static __attribute__((unused)) +int statfs(const char *path, struct statfs *buf) +{ + return __sysret(_sys_statfs(path, buf)); +} + +#endif /* _NOLIBC_SYS_STATFS_H */ -- 2.53.0