cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / x86_64-linux-gnu / bits / dlfcn.h

diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/dlfcn.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/dlfcn.h
new file mode 100644 (file)
index 0000000..b0b129b
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/dlfcn.h
@@ -0,0 +1,64 @@
+/* System dependent definitions for run-time dynamic loading.
+   Copyright (C) 1996-2018 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 _DLFCN_H
+# error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead."
+#endif
+
+/* The MODE argument to `dlopen' contains one of the following: */
+#define RTLD_LAZY      0x00001 /* Lazy function call binding.  */
+#define RTLD_NOW       0x00002 /* Immediate function call binding.  */
+#define        RTLD_BINDING_MASK   0x3 /* Mask of binding time value.  */
+#define RTLD_NOLOAD    0x00004 /* Do not load the object.  */
+#define RTLD_DEEPBIND  0x00008 /* Use deep binding.  */
+
+/* If the following bit is set in the MODE argument to `dlopen',
+   the symbols of the loaded object and its dependencies are made
+   visible as if the object were linked directly into the program.  */
+#define RTLD_GLOBAL    0x00100
+
+/* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL.
+   The implementation does this by default and so we can define the
+   value to zero.  */
+#define RTLD_LOCAL     0
+
+/* Do not delete object when closed.  */
+#define RTLD_NODELETE  0x01000
+
+#ifdef __USE_GNU
+/* To support profiling of shared objects it is a good idea to call
+   the function found using `dlsym' using the following macro since
+   these calls do not use the PLT.  But this would mean the dynamic
+   loader has no chance to find out when the function is called.  The
+   macro applies the necessary magic so that profiling is possible.
+   Rewrite
+       foo = (*fctp) (arg1, arg2);
+   into
+        foo = DL_CALL_FCT (fctp, (arg1, arg2));
+*/
+# define DL_CALL_FCT(fctp, args) \
+  (_dl_mcount_wrapper_check ((void *) (fctp)), (*(fctp)) args)
+
+__BEGIN_DECLS
+
+/* This function calls the profiling functions.  */
+extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW;
+
+__END_DECLS
+
+#endif