2 * Copyright (c) 1999, 2000 John D. Polstra.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 #ifndef RTLD_MACHDEP_H
30 #define RTLD_MACHDEP_H 1
32 #include <sys/types.h>
33 #include <machine/atomic.h>
35 struct Struct_Obj_Entry;
37 /* Return the address of the .dynamic section in the dynamic linker. */
38 #define rtld_dynamic(obj) (&_DYNAMIC)
40 Elf_Addr reloc_jmpslot(Elf_Addr *where, Elf_Addr target,
41 const struct Struct_Obj_Entry *defobj,
42 const struct Struct_Obj_Entry *obj,
45 #define make_function_pointer(def, defobj) \
46 ((defobj)->relocbase + (def)->st_value)
48 #define call_initfini_pointer(obj, target) \
49 (((InitFunc)(target))())
52 * Lazy binding entry point, called via PLT.
54 void _rtld_bind_start(void);
57 * PLT functions. Not really correct prototypes, but the
58 * symbol values are needed.
60 void _rtld_powerpc_pltlongresolve(void);
61 void _rtld_powerpc_pltresolve(void);
62 void _rtld_powerpc_pltcall(void);
68 #define TLS_TP_OFFSET 0x7000
69 #define TLS_DTV_OFFSET 0x8000
70 #define TLS_TCB_SIZE 8
72 #define round(size, align) \
73 (((size) + (align) - 1) & ~((align) - 1))
74 #define calculate_first_tls_offset(size, align) \
76 #define calculate_tls_offset(prev_offset, prev_size, size, align) \
77 round(prev_offset + prev_size, align)
78 #define calculate_tls_end(off, size) ((off) + (size))
81 unsigned long ti_module;
82 unsigned long ti_offset;
85 extern void *__tls_get_addr(tls_index* ti);