1/* NLM (NetWare Loadable Module) support for BFD.
2   Copyright 1993, 2001 Free Software Foundation, Inc.
3
4   Written by Fred Fish @ Cygnus Support
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
21
22
23/* This file is part of NLM support for BFD, and contains the portions
24   that are common to both the internal and external representations. */
25
26/* If NLM_ARCH_SIZE is not defined, default to 32.  NLM_ARCH_SIZE is
27   optionally defined by the application. */
28
29#ifndef NLM_ARCH_SIZE
30#  define NLM_ARCH_SIZE			32
31#endif
32
33/* Due to horrible details of ANSI macro expansion, we can't use CONCAT4
34   for NLM_NAME.  CONCAT2 is used in BFD_JUMP_TABLE macros, and some of
35   them will expand to tokens that themselves are macros defined in terms
36   of NLM_NAME.  If NLM_NAME were defined using CONCAT4 (which is itself
37   defined in bfd-in.h using CONCAT2), ANSI preprocessor rules say that
38   the CONCAT2 within NLM_NAME should not be expanded.
39   So use another name.  */
40#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
41#ifdef SABER
42#define NLM_CAT4(a,b,c,d) a##b##c##d
43#else
44/* This hack is to avoid a problem with some strict ANSI C preprocessors.
45   The problem is, "32_" is not a valid preprocessing token, and we don't
46   want extra underscores (e.g., "nlm_32_").  The NLM_XCAT2 macro will
47   cause the inner CAT2 macros to be evaluated first, producing
48   still-valid pp-tokens.  Then the final concatenation can be done.  */
49#define NLM_CAT2(a,b)	  a##b
50#define NLM_XCAT2(a,b)	  NLM_CAT2(a,b)
51#define NLM_CAT4(a,b,c,d) NLM_XCAT2(NLM_CAT2(a,b),NLM_CAT2(c,d))
52#endif
53#else
54#define NLM_CAT4(a,b,c,d) a/**/b/**/c/**/d
55#endif
56
57#if NLM_ARCH_SIZE == 32
58#  define NLM_TARGET_LONG_SIZE		4
59#  define NLM_TARGET_ADDRESS_SIZE	4
60#  define NLM_NAME(x,y)			NLM_CAT4(x,32,_,y)
61#  define NLM_HIBIT			(((bfd_vma) 1) << 31)
62#endif
63#if NLM_ARCH_SIZE == 64
64#  define NLM_TARGET_LONG_SIZE		8
65#  define NLM_TARGET_ADDRESS_SIZE	8
66#  define NLM_NAME(x,y)			NLM_CAT4(x,64,_,y)
67#  define NLM_HIBIT			(((bfd_vma) 1) << 63)
68#endif
69
70#define NlmNAME(X)		NLM_NAME(Nlm,X)
71#define nlmNAME(X)		NLM_NAME(nlm,X)
72
73/* Give names to things that should not change. */
74
75#define NLM_MAX_DESCRIPTION_LENGTH		127
76#define NLM_MAX_SCREEN_NAME_LENGTH		71
77#define NLM_MAX_THREAD_NAME_LENGTH		71
78#define NLM_MAX_COPYRIGHT_MESSAGE_LENGTH	255
79#define NLM_OTHER_DATA_LENGTH 			400		/* FIXME */
80#define NLM_OLD_THREAD_NAME_LENGTH		5
81#define NLM_SIGNATURE_SIZE			24
82#define NLM_HEADER_VERSION			4
83#define NLM_MODULE_NAME_SIZE			14
84#define NLM_DEFAULT_STACKSIZE			(8 * 1024)
85
86/* Alpha information.  This should probably be in a separate Alpha
87   header file, but it can't go in alpha-ext.h because some of it is
88   needed by nlmconv.c.  */
89
90/* Magic number in Alpha prefix header.  */
91#define NLM32_ALPHA_MAGIC (0x83561840)
92
93/* The r_type field in an Alpha reloc is one of the following values.  */
94#define ALPHA_R_IGNORE		0
95#define ALPHA_R_REFLONG		1
96#define ALPHA_R_REFQUAD		2
97#define ALPHA_R_GPREL32		3
98#define ALPHA_R_LITERAL		4
99#define ALPHA_R_LITUSE		5
100#define ALPHA_R_GPDISP		6
101#define ALPHA_R_BRADDR		7
102#define ALPHA_R_HINT		8
103#define ALPHA_R_SREL16		9
104#define ALPHA_R_SREL32	       10
105#define ALPHA_R_SREL64	       11
106#define ALPHA_R_OP_PUSH	       12
107#define ALPHA_R_OP_STORE       13
108#define ALPHA_R_OP_PSUB	       14
109#define ALPHA_R_OP_PRSHIFT     15
110#define ALPHA_R_GPVALUE	       16
111#define ALPHA_R_NW_RELOC      250
112
113/* A local reloc, other than ALPHA_R_GPDISP or ALPHA_R_IGNORE, must be
114   against one of these symbol indices.  */
115#define ALPHA_RELOC_SECTION_TEXT	1
116#define ALPHA_RELOC_SECTION_DATA	3
117
118/* An ALPHA_R_NW_RELOC has one of these values in the size field.  If
119   it is SETGP, the r_vaddr field holds the GP value to use.  If it is
120   LITA, the r_vaddr field holds the address of the .lita section and
121   the r_symndx field holds the size of the .lita section.  */
122#define ALPHA_R_NW_RELOC_SETGP	1
123#define ALPHA_R_NW_RELOC_LITA	2
124