1 /*- 2 * Copyright (c) 1999, 2000 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef RTLD_MACHDEP_H 30 #define RTLD_MACHDEP_H 1 31 32 #include <machine/atomic.h> 33 34 #define atomic_incr_int(p) atomic_add_int((p), 1) 35 #define atomic_decr_int(p) atomic_subtract_int((p), 1) 36 37 #define CACHE_LINE_SIZE 32 38 39 struct Struct_Obj_Entry; 40 41 /* Return the address of the .dynamic section in the dynamic linker. */ 42 #define rtld_dynamic(obj) (&_DYNAMIC) 43 44 Elf_Addr reloc_jmpslot(Elf_Addr *where, Elf_Addr target, 45 const struct Struct_Obj_Entry *defobj, 46 const struct Struct_Obj_Entry *obj, 47 const Elf_Rel *rel); 48 49 #define make_function_pointer(def, defobj) \ 50 ((defobj)->relocbase + (def)->st_value) 51 52 #define call_initfini_pointer(obj, target) \ 53 (((InitFunc)(target))()) 54 55 /* 56 * Lazy binding entry point, called via PLT. 57 */ 58 void _rtld_bind_start(void); 59 60 /* 61 * PLT functions. Not really correct prototypes, but the 62 * symbol values are needed. 63 */ 64 void _rtld_powerpc_pltresolve(void); 65 void _rtld_powerpc_pltcall(void); 66 67 #endif 68