diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/sem-pad.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/bits/sem-pad.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/sem-pad.h b/sysdeps/unix/sysv/linux/bits/sem-pad.h new file mode 100644 index 0000000000..c57fea4ac8 --- /dev/null +++ b/sysdeps/unix/sysv/linux/bits/sem-pad.h @@ -0,0 +1,33 @@ +/* Define where padding goes in struct semid_ds. Generic version. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; 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; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_SEM_H +# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead." +#endif + +#include <bits/wordsize.h> + +/* On most architectures, padding goes after time fields for 32-bit + systems and is omitted for 64-bit systems. Some architectures pad + before time fields instead, or omit padding despite being 32-bit, + or include it despite being 64-bit. This must match the layout + used for struct semid64_ds in <asm/sembuf.h>, as glibc does not do + layout conversions for this structure. */ + +#define __SEM_PAD_AFTER_TIME (__WORDSIZE == 32) +#define __SEM_PAD_BEFORE_TIME 0 |