2010-03-12 19:50:55 +01:00
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/* Resolve function pointers to VDSO functions.
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2014-01-01 21:03:15 +10:00
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Copyright (C) 2010-2014 Free Software Foundation, Inc.
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2010-03-12 19:50:55 +01:00
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This file is part of the GNU C Library.
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Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-03-09 23:56:38 +00:00
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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2010-03-12 19:50:55 +01:00
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#ifndef _M68K_VDSO_H
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#define _M68K_VDSO_H
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#ifdef SHARED
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2014-11-20 21:09:43 +05:30
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# if IS_IN (rtld)
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2010-03-12 19:50:55 +01:00
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# define M68K_VDSO_SYMBOL(name) __rtld_##name
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# define STR_M68K_VDSO_SYMBOL(name) "__rtld_" #name
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# else
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# define M68K_VDSO_SYMBOL(name) name
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# define STR_M68K_VDSO_SYMBOL(name) #name
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# endif
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# ifndef __ASSEMBLER__
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/* We define __rtld_* copies for rtld.
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We need them visible in libc to initialize. */
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2014-11-20 21:09:43 +05:30
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# if IS_IN (rtld) || !defined NOT_IN_libc
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2010-03-12 19:50:55 +01:00
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extern void *__rtld___vdso_read_tp;
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extern void *__rtld___vdso_atomic_cmpxchg_32;
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extern void *__rtld___vdso_atomic_barrier;
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/* These stubs are meant to be invoked only from the assembly. */
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extern void __vdso_read_tp_stub (void);
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extern void __vdso_atomic_cmpxchg_32_stub (void);
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extern void __vdso_atomic_barrier_stub (void);
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2014-11-20 21:09:43 +05:30
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# endif /* IS_IN (rtld) || !NOT_IN_libc */
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2010-03-12 19:50:55 +01:00
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/* RTLD should only use its own copies. */
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2014-11-20 21:09:43 +05:30
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# if !IS_IN (rtld)
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2010-03-12 19:50:55 +01:00
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extern void *__vdso_read_tp;
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extern void *__vdso_atomic_cmpxchg_32;
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extern void *__vdso_atomic_barrier;
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2014-11-20 21:09:43 +05:30
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# endif /* !IS_IN (rtld) */
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2010-03-12 19:50:55 +01:00
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# endif /* !__ASSEMBLER__ */
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#endif /* SHARED */
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#endif /* _M68K_VDSO_H */
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