[Libc] add header sys/statvfs.h

headers/header_spec.txt

@@ -174,6 +174,7 @@ share/libc/__fc_define_eof.h: CEA_LGPL
 share/libc/__fc_define_fd_set_t.h: CEA_LGPL
 share/libc/__fc_define_file.h: CEA_LGPL
 share/libc/__fc_define_fpos_t.h: CEA_LGPL
+share/libc/__fc_define_fs_cnt.h: CEA_LGPL
 share/libc/__fc_define_id_t.h: CEA_LGPL
 share/libc/__fc_define_ino_t.h: CEA_LGPL
 share/libc/__fc_define_intptr_t.h: CEA_LGPL
@@ -289,6 +290,7 @@ share/libc/sys/shm.h: CEA_LGPL
 share/libc/sys/signal.h: CEA_LGPL
 share/libc/sys/socket.h: CEA_LGPL
 share/libc/sys/stat.h: CEA_LGPL
+share/libc/sys/statvfs.h: CEA_LGPL
 share/libc/sys/time.h: CEA_LGPL
 share/libc/sys/times.h: CEA_LGPL
 share/libc/sys/timex.h: CEA_LGPL
@@ -296,6 +298,7 @@ share/libc/sys/types.h: CEA_LGPL
 share/libc/sys/uio.h: CEA_LGPL
 share/libc/sys/un.h: CEA_LGPL
 share/libc/sys/utsname.h: CEA_LGPL
+share/libc/sys/vfs.h: CEA_LGPL
 share/libc/sys/wait.h: CEA_LGPL
 share/libc/syslog.h: CEA_LGPL
 share/libc/termios.h: CEA_LGPL

share/libc/__fc_define_fs_cnt.h

+/**************************************************************************/
+/*                                                                        */
+/*  This file is part of Frama-C.                                         */
+/*                                                                        */
+/*  Copyright (C) 2007-2021                                               */
+/*    CEA (Commissariat à l'énergie atomique et aux énergies              */
+/*         alternatives)                                                  */
+/*                                                                        */
+/*  you can redistribute it and/or modify it under the terms of the GNU   */
+/*  Lesser General Public License as published by the Free Software       */
+/*  Foundation, version 2.1.                                              */
+/*                                                                        */
+/*  It is distributed in the hope that it will be useful,                 */
+/*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
+/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         */
+/*  GNU Lesser General Public License for more details.                   */
+/*                                                                        */
+/*  See the GNU Lesser General Public License version 2.1                 */
+/*  for more details (enclosed in the file licenses/LGPLv2.1).            */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef __FC_DEFINE_FS_CNT
+#define __FC_DEFINE_FS_CNT
+#include "features.h"
+__PUSH_FC_STDLIB
+__BEGIN_DECLS
+#ifndef __fsblkcnt_t_defined
+typedef unsigned long fsblkcnt_t;
+#define __fsblkcnt_t_defined
+#endif
+#ifndef __fsfilcnt_t_defined
+typedef unsigned long fsfilcnt_t;
+#define __fsfilcnt_t_defined
+#endif
+__END_DECLS
+__POP_FC_STDLIB
+#endif

share/libc/sys/statvfs.h

+/**************************************************************************/
+/*                                                                        */
+/*  This file is part of Frama-C.                                         */
+/*                                                                        */
+/*  Copyright (C) 2007-2021                                               */
+/*    CEA (Commissariat à l'énergie atomique et aux énergies              */
+/*         alternatives)                                                  */
+/*                                                                        */
+/*  you can redistribute it and/or modify it under the terms of the GNU   */
+/*  Lesser General Public License as published by the Free Software       */
+/*  Foundation, version 2.1.                                              */
+/*                                                                        */
+/*  It is distributed in the hope that it will be useful,                 */
+/*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
+/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         */
+/*  GNU Lesser General Public License for more details.                   */
+/*                                                                        */
+/*  See the GNU Lesser General Public License version 2.1                 */
+/*  for more details (enclosed in the file licenses/LGPLv2.1).            */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef __FC_SYS_STATVFS_H__
+#define __FC_SYS_STATVFS_H__
+
+#include "../features.h"
+__PUSH_FC_STDLIB
+__BEGIN_DECLS
+
+#include "../__fc_define_fs_cnt.h"
+
+struct statvfs {
+  unsigned long f_bsize;   // File system block size.
+  unsigned long f_frsize;  // Fundamental file system block size.
+  fsblkcnt_t    f_blocks;  // Total number of blocks on file system in units of
+                           // f_frsize.
+  fsblkcnt_t    f_bfree;   // Total number of free blocks.
+  fsblkcnt_t    f_bavail;  // Number of free blocks available to
+                           // non-privileged process.
+  fsfilcnt_t    f_files;   // Total number of file serial numbers.
+  fsfilcnt_t    f_ffree;   // Total number of free file serial numbers.
+  fsfilcnt_t    f_favail;  // Number of file serial numbers available to
+                           // non-privileged process.
+  unsigned long f_fsid;    // File system ID.
+  unsigned long f_flag;    // Bit mask of f_flag values.
+  unsigned long f_namemax; // Maximum filename length.
+};
+
+extern int fstatvfs(int fildes, struct statvfs *buf);
+
+extern int statvfs(const char *restrict path, struct statvfs *restrict buf);
+
+__END_DECLS
+__POP_FC_STDLIB
+#endif

share/libc/sys/vfs.h

+/**************************************************************************/
+/*                                                                        */
+/*  This file is part of Frama-C.                                         */
+/*                                                                        */
+/*  Copyright (C) 2007-2021                                               */
+/*    CEA (Commissariat à l'énergie atomique et aux énergies              */
+/*         alternatives)                                                  */
+/*                                                                        */
+/*  you can redistribute it and/or modify it under the terms of the GNU   */
+/*  Lesser General Public License as published by the Free Software       */
+/*  Foundation, version 2.1.                                              */
+/*                                                                        */
+/*  It is distributed in the hope that it will be useful,                 */
+/*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
+/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         */
+/*  GNU Lesser General Public License for more details.                   */
+/*                                                                        */
+/*  See the GNU Lesser General Public License version 2.1                 */
+/*  for more details (enclosed in the file licenses/LGPLv2.1).            */
+/*                                                                        */
+/**************************************************************************/
+
+// This file is neither in the C standard nor in POSIX;
+// it exists for compatibility purposes
+#include "statvfs.h"

tests/libc/fc_libc.c

@@ -44,6 +44,7 @@
 #include "__fc_define_fd_set_t.h"
 #include "__fc_define_file.h"
 #include "__fc_define_fpos_t.h"
+#include "__fc_define_fs_cnt.h"
 #include "__fc_define_id_t.h"
 #include "__fc_define_ino_t.h"
 #include "__fc_define_intptr_t.h"
@@ -132,6 +133,7 @@
 #include "sys/signal.h"
 #include "sys/socket.h"
 #include "sys/stat.h"
+#include "sys/statvfs.h"
 #include "sys/time.h"
 #include "sys/times.h"
 #include "sys/timex.h"
@@ -139,6 +141,7 @@
 #include "sys/uio.h"
 #include "sys/un.h"
 #include "sys/utsname.h"
+#include "sys/vfs.h"
 #include "sys/wait.h"
 #include "termios.h"
 #include "tgmath.h"

tests/libc/oracle/fc_libc.0.res.oracle

@@ -7,10 +7,10 @@
 [eva] Initial state computed
 [eva:initial-state] Values of globals at initialization
   
-[eva] tests/libc/fc_libc.c:155: assertion got status valid.
-[eva] tests/libc/fc_libc.c:156: assertion got status valid.
-[eva] tests/libc/fc_libc.c:157: assertion got status valid.
 [eva] tests/libc/fc_libc.c:158: assertion got status valid.
+[eva] tests/libc/fc_libc.c:159: assertion got status valid.
+[eva] tests/libc/fc_libc.c:160: assertion got status valid.
+[eva] tests/libc/fc_libc.c:161: assertion got status valid.
 [eva] Recording results for main
 [eva] done for function main
 [eva] ====== VALUES COMPUTED ======

tests/libc/oracle/fc_libc.2.res.oracle

@@ -8,6 +8,7 @@
 [kernel] Parsing share/libc/__fc_define_fd_set_t.h (with preprocessing)
 [kernel] Parsing share/libc/__fc_define_file.h (with preprocessing)
 [kernel] Parsing share/libc/__fc_define_fpos_t.h (with preprocessing)
+[kernel] Parsing share/libc/__fc_define_fs_cnt.h (with preprocessing)
 [kernel] Parsing share/libc/__fc_define_id_t.h (with preprocessing)
 [kernel] Parsing share/libc/__fc_define_ino_t.h (with preprocessing)
 [kernel] Parsing share/libc/__fc_define_intptr_t.h (with preprocessing)
@@ -106,6 +107,7 @@ skipping share/libc/complex.h
 [kernel] Parsing share/libc/sys/signal.h (with preprocessing)
 [kernel] Parsing share/libc/sys/socket.h (with preprocessing)
 [kernel] Parsing share/libc/sys/stat.h (with preprocessing)
+[kernel] Parsing share/libc/sys/statvfs.h (with preprocessing)
 [kernel] Parsing share/libc/sys/time.h (with preprocessing)
 [kernel] Parsing share/libc/sys/times.h (with preprocessing)
 [kernel] Parsing share/libc/sys/timex.h (with preprocessing)
@@ -113,6 +115,7 @@ skipping share/libc/complex.h
 [kernel] Parsing share/libc/sys/uio.h (with preprocessing)
 [kernel] Parsing share/libc/sys/un.h (with preprocessing)
 [kernel] Parsing share/libc/sys/utsname.h (with preprocessing)
+[kernel] Parsing share/libc/sys/vfs.h (with preprocessing)
 [kernel] Parsing share/libc/sys/wait.h (with preprocessing)
 [kernel] Parsing share/libc/syslog.h (with preprocessing)
 [kernel] Parsing share/libc/termios.h (with preprocessing)