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Diffstat (limited to 'compiler.h')
| -rw-r--r-- | compiler.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/compiler.h b/compiler.h new file mode 100644 index 0000000..0921edd --- /dev/null +++ b/compiler.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2015 Tobias Klauser <tklauser@distanz.ch> + * + * This file is part of llmnrd. + * + * llmnrd is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 2 of the License. + * + * llmnrd 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with llmnrd. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef COMPILER_H +#define COMPILER_H + +#ifdef __GNUC__ +# define __noreturn __attribute__((noreturn)) +# define __packed __attribute__((packed)) +# define __unused __attribute__((unused)) +# define offsetof(a, b) __builtin_offsetof(a, b) +#else +# define __noreturn +# define __packed +# define __unused +#endif + +#ifndef offsetof +# define offsetof(type, member) ((size_t) &((type *)0)->member) +#endif + +#ifndef container_of +# define container_of(ptr, type, member) ({ \ + const typeof(((type *)0)->member) *__mptr = (ptr); \ + (type *)((char *)__mptr - offsetof(type, member));}) +#endif + +#endif /* COMPILER_H */ |