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/*
* generic wrapper.
*
* Copyright 1999-2008 Gentoo Foundation
* Licensed under the GPL-2
*/
#ifndef WRAPPER_ARGS_PROTO
# error WRAPPER_ARGS_PROTO needs to be defined
#endif
#ifndef WRAPPER_ARGS_PROTO_FULL
# define WRAPPER_ARGS_PROTO_FULL WRAPPER_ARGS_PROTO
#endif
#ifndef WRAPPER_ARGS_FULL
# define WRAPPER_ARGS_FULL WRAPPER_ARGS
#endif
#ifndef WRAPPER_RET_TYPE
# define WRAPPER_RET_TYPE int
#endif
#ifndef WRAPPER_RET_DEFAULT
# define WRAPPER_RET_DEFAULT -1
#endif
#ifndef WRAPPER_PRE_CHECKS
# define WRAPPER_PRE_CHECKS() true
#endif
#ifndef WRAPPER_SAFE_POST_EXPAND
# define WRAPPER_SAFE_POST_EXPAND
#endif
#ifndef WRAPPER_POST_EXPAND
# define WRAPPER_POST_EXPAND
#endif
extern WRAPPER_RET_TYPE EXTERN_NAME(WRAPPER_ARGS_PROTO);
static WRAPPER_RET_TYPE (*WRAPPER_TRUE_NAME)(WRAPPER_ARGS_PROTO) = NULL;
#ifndef SB_HIDDEN_FUNC
# define _SB_HIDDEN_FUNC(x) sb_unwrapped_##x
# define SB_HIDDEN_FUNC(x) _SB_HIDDEN_FUNC(x)
#endif
attribute_hidden
WRAPPER_RET_TYPE SB_HIDDEN_FUNC(WRAPPER_NAME)(WRAPPER_ARGS_PROTO_FULL)
{
check_dlsym(WRAPPER_TRUE_NAME, WRAPPER_SYMNAME, WRAPPER_SYMVER);
return WRAPPER_TRUE_NAME(WRAPPER_ARGS_FULL);
}
WRAPPER_RET_TYPE WRAPPER_NAME(WRAPPER_ARGS_PROTO)
{
WRAPPER_RET_TYPE result = WRAPPER_RET_DEFAULT;
if (WRAPPER_PRE_CHECKS())
if (WRAPPER_SAFE()) {
WRAPPER_SAFE_POST_EXPAND
result = SB_HIDDEN_FUNC(WRAPPER_NAME)(WRAPPER_ARGS_FULL);
WRAPPER_POST_EXPAND
}
return result;
}
#undef WRAPPER_ARGS_FULL
#undef WRAPPER_ARGS_PROTO_FULL
#undef WRAPPER_SAFE_POST_EXPAND
#undef WRAPPER_POST_EXPAND
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