diff options
author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h | |
parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) |
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h')
-rw-r--r-- | ports/sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h b/ports/sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h new file mode 100644 index 0000000000..00659a485f --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h @@ -0,0 +1,60 @@ +/* Resolve function pointers to VDSO functions. + Copyright (C) 2010 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 + +# ifdef 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 defined IS_IN_rtld || !defined NOT_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 || !NOT_IN_libc */ + +/* RTLD should only use its own copies. */ +# ifndef 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 */ |