mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/* Resolve function pointers to VDSO functions.
|
|
Copyright (C) 2010-2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
|
|
|
|
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 _M68K_VDSO_H
|
|
#define _M68K_VDSO_H
|
|
|
|
#ifdef SHARED
|
|
|
|
# if IS_IN (rtld)
|
|
# define M68K_VDSO_SYMBOL(name) __rtld_##name
|
|
# define STR_M68K_VDSO_SYMBOL(name) "__rtld_" #name
|
|
# else
|
|
# define M68K_VDSO_SYMBOL(name) name
|
|
# define STR_M68K_VDSO_SYMBOL(name) #name
|
|
# endif
|
|
|
|
# ifndef __ASSEMBLER__
|
|
|
|
/* We define __rtld_* copies for rtld.
|
|
We need them visible in libc to initialize. */
|
|
# if IS_IN (rtld) || IS_IN (libc)
|
|
extern void *__rtld___vdso_read_tp;
|
|
extern void *__rtld___vdso_atomic_cmpxchg_32;
|
|
extern void *__rtld___vdso_atomic_barrier;
|
|
|
|
/* These stubs are meant to be invoked only from the assembly. */
|
|
extern void __vdso_read_tp_stub (void);
|
|
extern void __vdso_atomic_cmpxchg_32_stub (void);
|
|
extern void __vdso_atomic_barrier_stub (void);
|
|
# endif /* IS_IN (rtld) || IS_IN (libc) */
|
|
|
|
/* RTLD should only use its own copies. */
|
|
# if !IS_IN (rtld)
|
|
extern void *__vdso_read_tp;
|
|
extern void *__vdso_atomic_cmpxchg_32;
|
|
extern void *__vdso_atomic_barrier;
|
|
# endif /* !IS_IN (rtld) */
|
|
|
|
# endif /* !__ASSEMBLER__ */
|
|
|
|
#endif /* SHARED */
|
|
|
|
#endif /* _M68K_VDSO_H */
|