mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-29 00:01:12 +00:00
84b4a81aeb
Summary of changes: - Use BAD_TYPECHECK to perform type checking in a cleaner way. BAD_TYPECHECK is moved into sysdeps/mach/rpc.h to avoid duplication. - Remove assertions for mach_msg_type_t since those won't work for x86_64. - Update message structs to use mach_msg_type_t directly. - Use designated initializers. Message-Id: <ZFa+roan3ioo0ONM@jupiter.tail36e24.ts.net>
31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
/* Macros for handling Mach RPC messages.
|
|
Copyright (C) 2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <mach/message.h>
|
|
|
|
/* Macro used by MIG to cleanly check the type. */
|
|
#define BAD_TYPECHECK(type, check) __glibc_unlikely (({ \
|
|
union { mach_msg_type_t t; uint32_t w; } _t, _c; \
|
|
_t.t = *(type); _c.t = *(check);_t.w != _c.w; }))
|
|
|
|
/* TODO: add this assertion for x86_64. */
|
|
#ifndef __x86_64__
|
|
_Static_assert (sizeof (uint32_t) == sizeof (mach_msg_type_t),
|
|
"mach_msg_type_t needs to be the same size as uint32_t");
|
|
#endif
|