about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/m68k/m68k-vdso.h
diff options
context:
space:
mode:
authorJoseph Myers <joseph@codesourcery.com>2015-09-04 14:46:21 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-09-04 14:46:21 +0000
commit0f4341fbec937b26b34e0ee80ab903825c0c76d0 (patch)
tree5aa15d3f43b938bd227146ef619153222382b6cc /sysdeps/unix/sysv/linux/m68k/m68k-vdso.h
parentf834e6dc705c80550acf610d507b3e4cdf19693e (diff)
downloadglibc-0f4341fbec937b26b34e0ee80ab903825c0c76d0.tar.gz
glibc-0f4341fbec937b26b34e0ee80ab903825c0c76d0.tar.xz
glibc-0f4341fbec937b26b34e0ee80ab903825c0c76d0.zip
Rename bits/m68k-vdso.h to m68k-vdso.h (bug 14912).
It was noted in
<https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the
bits/*.h naming scheme should only be used for installed headers.
This patch renames bits/m68k-vdso.h to plain m68k-vdso.h to follow
that convention.

	[BZ #14912]
	* sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h: Move to ...
	* sysdeps/unix/sysv/linux/m68k/m68k-vdso.h: ...here.
	* sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h: Include
	<m68k-vdso.h> instead of <bits/m68k-vdso.h>.
	* sysdeps/unix/sysv/linux/m68k/init-first.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m68k-helpers.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m68k-vdso.c: Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k/m68k-vdso.h')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/m68k-vdso.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/m68k-vdso.h b/sysdeps/unix/sysv/linux/m68k/m68k-vdso.h
new file mode 100644
index 0000000000..3863bdf685
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/m68k-vdso.h
@@ -0,0 +1,60 @@
+/* Resolve function pointers to VDSO functions.
+   Copyright (C) 2010-2015 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 */