Lines Matching +full:48 +full:- +full:bit

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  *    Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org>
4  *    Copyright (C) 2003 Carlos O'Donell <carlos at parisc-linux.org>
11 /* 32-bit ucontext as seen from an 64-bit kernel */
16         /* FIXME: Pad out to get uc_mcontext to start at an 8-byte aligned boundary */
24 /* In a deft move of uber-hackery, we decide to carry the top half of all
25  * 64-bit registers in a non-portable, non-ABI, hidden structure.
31         /* Upper half of all the 64-bit registers that were truncated
32            on a copy to a 32-bit userspace */
48  * The 32-bit ABI wants at least 48 bytes for a function call frame:
49  * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
50  * which Linux/parisc uses is sp-20 for the saved return pointer...)
54 #define FUNCTIONCALLFRAME32     48
55 …AME_SIZE32 (((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)