diff options
Diffstat (limited to 'lib/libc/gen/gen-compat.h')
| -rw-r--r-- | lib/libc/gen/gen-compat.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/lib/libc/gen/gen-compat.h b/lib/libc/gen/gen-compat.h new file mode 100644 index 000000000000..19b9addb4321 --- /dev/null +++ b/lib/libc/gen/gen-compat.h @@ -0,0 +1,89 @@ +/*- + * Copyright (c) 2012 Gleb Kurtsou <gleb@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _GEN_COMPAT_H_ +#define _GEN_COMPAT_H_ + +#include <dirent.h> + +#define FREEBSD11_DIRSIZ(dp) \ + (sizeof(struct freebsd11_dirent) - sizeof((dp)->d_name) + \ + (((dp)->d_namlen + 1 + 3) &~ 3)) + +struct freebsd11_dirent; +struct freebsd11_stat; +struct freebsd11_statfs; + +struct freebsd11_dirent *freebsd11_readdir(DIR *); +int freebsd11_readdir_r(DIR *, struct freebsd11_dirent *, + struct freebsd11_dirent **); + +int freebsd11_getmntinfo(struct freebsd11_statfs **, int); + +char *freebsd11_devname(__uint32_t dev, __mode_t type); +char *freebsd11_devname_r(__uint32_t dev, __mode_t type, char *buf, + int len); + +/* + * We want freebsd11_fstat in C source to result in resolution to + * - fstat@FBSD_1.0 for libc.so (but we do not need the _definition_ + * of this fstat, it is provided by libsys.so which we want to use). + * - freebsd11_fstat for libc.a (since if we make it fstat@FBSD_1.0 + * for libc.a, then final linkage into static object ignores version + * and would reference fstat, which is the current syscall, not the + * compat syscall). libc.a provides the freebsd11_fstat implementation. + * Note that freebsd11_fstat from libc.a is not used for anything, but + * we make it correct nonetheless, just in case it would. + * This is arranged by COMPAT_SYSCALL, and libc can just use freebsd11_fstat. + */ +#ifdef PIC +#define COMPAT_SYSCALL(rtype, fun, args, sym, ver) \ + rtype fun args; __sym_compat(sym, fun, ver); +#else +#define COMPAT_SYSCALL(rtype, fun, args, sym, ver) \ + rtype fun args; +#endif + +COMPAT_SYSCALL(int, freebsd11_stat, (const char *, struct freebsd11_stat *), + stat, FBSD_1.0); +COMPAT_SYSCALL(int, freebsd11_lstat, (const char *, struct freebsd11_stat *), + lstat, FBSD_1.0); +COMPAT_SYSCALL(int, freebsd11_fstat, (int, struct freebsd11_stat *), + fstat, FBSD_1.0); +COMPAT_SYSCALL(int, freebsd11_fstatat, (int, const char *, + struct freebsd11_stat *, int), fstatat, FBSD_1.1); + +COMPAT_SYSCALL(int, freebsd11_statfs, (const char *, + struct freebsd11_statfs *), statfs, FBSD_1.0); +COMPAT_SYSCALL(int, freebsd11_getfsstat, (struct freebsd11_statfs *, long, + int), getfsstat, FBSD_1.0); + +COMPAT_SYSCALL(int, freebsd14_setgroups, (int gidsize, const __gid_t *gidset), + setgroups, FBSD_1.0); + +#undef COMPAT_SYSCALL + +#endif /* _GEN_COMPAT_H_ */ |