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authorMike Frysinger <vapier@gentoo.org>2014-02-15 22:07:25 -0500
committerMike Frysinger <vapier@gentoo.org>2014-02-16 01:12:38 -0500
commitc70a4b1db0cf5e813ae24b0fa96a352399eb6edf (patch)
tree5a36b0f0955682ae5232907d04fdf68589990783 /sysdeps/ia64/dl-fptr.h
parent591aeaf7a99bc9aa9179f013114d92496952dced (diff)
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ia64: relocate out of ports/ subdir
Diffstat (limited to 'sysdeps/ia64/dl-fptr.h')
-rw-r--r--sysdeps/ia64/dl-fptr.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/ia64/dl-fptr.h b/sysdeps/ia64/dl-fptr.h
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+++ b/sysdeps/ia64/dl-fptr.h
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+/* Function descriptors. IA64 version.
+ Copyright (C) 2003-2014 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef dl_ia64_fptr_h
+#define dl_ia64_fptr_h 1
+
+#include <ia64intrin.h>
+#include <sysdeps/generic/dl-fptr.h>
+
+#define COMPARE_AND_SWAP(ptr, old, new) \
+ __sync_bool_compare_and_swap (ptr, old, new)
+
+/* There are currently 123 dynamic symbols in ld.so.
+ ELF_MACHINE_BOOT_FPTR_TABLE_LEN needs to be at least that big. */
+#define ELF_MACHINE_BOOT_FPTR_TABLE_LEN 200
+
+#define ELF_MACHINE_LOAD_ADDRESS(var, symbol) \
+ asm ("movl %0 = @gprel (" #symbol ");; add %0 = %0, gp" : "=&r" (var));
+
+/* We don't have a gcc helper to extract the plabel info. */
+#define ELF_PTR_TO_FDESC(ptr) \
+ ({ union { \
+ void *_ptr; \
+ struct fdesc *_fdesc; \
+ } _u; \
+ _u._ptr = ptr; \
+ _u._fdesc; \
+ })
+
+#endif /* !dl_ia64_fptr_h */