1 /* NLM (NetWare Loadable Module) support for BFD.
2    Copyright (C) 1993-2016 Free Software Foundation, Inc.
3 
4    Written by Fred Fish @ Cygnus Support
5 
6    This file is part of BFD, the Binary File Descriptor library.
7 
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3 of the License, or
11    (at your option) any later version.
12 
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17 
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21    MA 02110-1301, USA.  */
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