freebsd-dev/libexec/rtld-elf/powerpc/rtld_machdep.h
Peter Grehan b9dea67fa8 rtld support for PowerPC. Mostly obtained from NetBSD, with mods
for binutils 2.13

Reviewed by:  benno

Approved by:  re (blanket)
2002-12-04 07:32:20 +00:00

68 lines
2.3 KiB
C

/*-
* Copyright (c) 1999, 2000 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef RTLD_MACHDEP_H
#define RTLD_MACHDEP_H 1
#include <machine/atomic.h>
#define atomic_incr_int(p) atomic_add_int((p), 1)
#define atomic_decr_int(p) atomic_subtract_int((p), 1)
#define CACHE_LINE_SIZE 32
struct Struct_Obj_Entry;
/* Return the address of the .dynamic section in the dynamic linker. */
#define rtld_dynamic(obj) (&_DYNAMIC)
Elf_Addr reloc_jmpslot(Elf_Addr *where, Elf_Addr target,
const struct Struct_Obj_Entry *defobj,
const struct Struct_Obj_Entry *obj,
const Elf_Rel *rel);
#define make_function_pointer(def, defobj) \
((defobj)->relocbase + (def)->st_value)
#define call_initfini_pointer(obj, target) \
(((InitFunc)(target))())
/*
* Lazy binding entry point, called via PLT.
*/
void _rtld_bind_start(void);
/*
* PLT functions. Not really correct prototypes, but the
* symbol values are needed.
*/
void _rtld_powerpc_pltresolve(void);
void _rtld_powerpc_pltcall(void);
#endif