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6e583a6e | 1 | /* Table of DBX symbol codes for the GNU system. |
688903eb | 2 | Copyright (C) 1988, 1997-2018 Free Software Foundation, Inc. |
762a2918 | 3 | This file is part of the GNU C Library. |
6e583a6e | 4 | |
762a2918 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
6e583a6e | 9 | |
762a2918 | 10 | The GNU C Library is distributed in the hope that it will be useful, |
6e583a6e | 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
762a2918 | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 13 | Lesser General Public License for more details. |
6e583a6e | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
6e583a6e RM |
18 | |
19 | /* This contains contribution from Cygnus Support. */ | |
20 | \f | |
21 | /* Global variable. Only the name is significant. | |
22 | To find the address, look in the corresponding external symbol. */ | |
23 | __define_stab (N_GSYM, 0x20, "GSYM") | |
24 | ||
25 | /* Function name for BSD Fortran. Only the name is significant. | |
26 | To find the address, look in the corresponding external symbol. */ | |
27 | __define_stab (N_FNAME, 0x22, "FNAME") | |
28 | ||
29 | /* Function name or text-segment variable for C. Value is its address. | |
30 | Desc is supposedly starting line number, but GCC doesn't set it | |
31 | and DBX seems not to miss it. */ | |
32 | __define_stab (N_FUN, 0x24, "FUN") | |
33 | ||
34 | /* Data-segment variable with internal linkage. Value is its address. | |
35 | "Static Sym". */ | |
36 | __define_stab (N_STSYM, 0x26, "STSYM") | |
37 | ||
38 | /* BSS-segment variable with internal linkage. Value is its address. */ | |
39 | __define_stab (N_LCSYM, 0x28, "LCSYM") | |
40 | ||
41 | /* Name of main routine. Only the name is significant. | |
42 | This is not used in C. */ | |
43 | __define_stab (N_MAIN, 0x2a, "MAIN") | |
44 | ||
45 | /* Global symbol in Pascal. | |
46 | Supposedly the value is its line number; I'm skeptical. */ | |
47 | __define_stab (N_PC, 0x30, "PC") | |
48 | ||
49 | /* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ | |
50 | __define_stab (N_NSYMS, 0x32, "NSYMS") | |
51 | ||
52 | /* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ | |
53 | __define_stab (N_NOMAP, 0x34, "NOMAP") | |
54 | ||
55 | /* New stab from Solaris. I don't know what it means, but it | |
56 | don't seem to contain useful information. */ | |
57 | __define_stab (N_OBJ, 0x38, "OBJ") | |
58 | ||
59 | /* New stab from Solaris. I don't know what it means, but it | |
60 | don't seem to contain useful information. Possibly related to the | |
61 | optimization flags used in this module. */ | |
62 | __define_stab (N_OPT, 0x3c, "OPT") | |
63 | ||
64 | /* Register variable. Value is number of register. */ | |
65 | __define_stab (N_RSYM, 0x40, "RSYM") | |
66 | ||
67 | /* Modula-2 compilation unit. Can someone say what info it contains? */ | |
68 | __define_stab (N_M2C, 0x42, "M2C") | |
69 | ||
70 | /* Line number in text segment. Desc is the line number; | |
71 | value is corresponding address. */ | |
72 | __define_stab (N_SLINE, 0x44, "SLINE") | |
73 | ||
74 | /* Similar, for data segment. */ | |
75 | __define_stab (N_DSLINE, 0x46, "DSLINE") | |
76 | ||
77 | /* Similar, for bss segment. */ | |
78 | __define_stab (N_BSLINE, 0x48, "BSLINE") | |
79 | ||
80 | /* Sun's source-code browser stabs. ?? Don't know what the fields are. | |
81 | Supposedly the field is "path to associated .cb file". THIS VALUE | |
82 | OVERLAPS WITH N_BSLINE! */ | |
83 | __define_stab (N_BROWS, 0x48, "BROWS") | |
84 | ||
85 | /* GNU Modula-2 definition module dependency. Value is the modification time | |
86 | of the definition file. Other is non-zero if it is imported with the | |
87 | GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there | |
88 | are enough empty fields? */ | |
89 | __define_stab(N_DEFD, 0x4a, "DEFD") | |
90 | ||
91 | /* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 | |
92 | and one is for C++. Still,... */ | |
93 | /* GNU C++ exception variable. Name is variable name. */ | |
94 | __define_stab (N_EHDECL, 0x50, "EHDECL") | |
95 | /* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ | |
96 | __define_stab (N_MOD2, 0x50, "MOD2") | |
97 | ||
98 | /* GNU C++ `catch' clause. Value is its address. Desc is nonzero if | |
99 | this entry is immediately followed by a CAUGHT stab saying what exception | |
100 | was caught. Multiple CAUGHT stabs means that multiple exceptions | |
101 | can be caught here. If Desc is 0, it means all exceptions are caught | |
102 | here. */ | |
103 | __define_stab (N_CATCH, 0x54, "CATCH") | |
104 | ||
105 | /* Structure or union element. Value is offset in the structure. */ | |
106 | __define_stab (N_SSYM, 0x60, "SSYM") | |
107 | ||
108 | /* Name of main source file. | |
109 | Value is starting text address of the compilation. */ | |
110 | __define_stab (N_SO, 0x64, "SO") | |
111 | ||
112 | /* Automatic variable in the stack. Value is offset from frame pointer. | |
113 | Also used for type descriptions. */ | |
114 | __define_stab (N_LSYM, 0x80, "LSYM") | |
115 | ||
116 | /* Beginning of an include file. Only Sun uses this. | |
117 | In an object file, only the name is significant. | |
118 | The Sun linker puts data into some of the other fields. */ | |
119 | __define_stab (N_BINCL, 0x82, "BINCL") | |
120 | ||
121 | /* Name of sub-source file (#include file). | |
122 | Value is starting text address of the compilation. */ | |
123 | __define_stab (N_SOL, 0x84, "SOL") | |
124 | ||
125 | /* Parameter variable. Value is offset from argument pointer. | |
126 | (On most machines the argument pointer is the same as the frame pointer. */ | |
127 | __define_stab (N_PSYM, 0xa0, "PSYM") | |
128 | ||
129 | /* End of an include file. No name. | |
130 | This and N_BINCL act as brackets around the file's output. | |
131 | In an object file, there is no significant data in this entry. | |
132 | The Sun linker puts data into some of the fields. */ | |
133 | __define_stab (N_EINCL, 0xa2, "EINCL") | |
134 | ||
135 | /* Alternate entry point. Value is its address. */ | |
136 | __define_stab (N_ENTRY, 0xa4, "ENTRY") | |
137 | ||
138 | /* Beginning of lexical block. | |
139 | The desc is the nesting level in lexical blocks. | |
140 | The value is the address of the start of the text for the block. | |
141 | The variables declared inside the block *precede* the N_LBRAC symbol. */ | |
142 | __define_stab (N_LBRAC, 0xc0, "LBRAC") | |
143 | ||
144 | /* Place holder for deleted include file. Replaces a N_BINCL and everything | |
145 | up to the corresponding N_EINCL. The Sun linker generates these when | |
146 | it finds multiple identical copies of the symbols from an include file. | |
147 | This appears only in output from the Sun linker. */ | |
148 | __define_stab (N_EXCL, 0xc2, "EXCL") | |
149 | ||
150 | /* Modula-2 scope information. Can someone say what info it contains? */ | |
151 | __define_stab (N_SCOPE, 0xc4, "SCOPE") | |
152 | ||
153 | /* End of a lexical block. Desc matches the N_LBRAC's desc. | |
154 | The value is the address of the end of the text for the block. */ | |
155 | __define_stab (N_RBRAC, 0xe0, "RBRAC") | |
156 | ||
157 | /* Begin named common block. Only the name is significant. */ | |
158 | __define_stab (N_BCOMM, 0xe2, "BCOMM") | |
159 | ||
160 | /* End named common block. Only the name is significant | |
161 | (and it should match the N_BCOMM). */ | |
162 | __define_stab (N_ECOMM, 0xe4, "ECOMM") | |
163 | ||
164 | /* End common (local name): value is address. | |
165 | I'm not sure how this is used. */ | |
166 | __define_stab (N_ECOML, 0xe8, "ECOML") | |
167 | ||
168 | /* These STAB's are used on Gould systems for Non-Base register symbols | |
169 | or something like that. FIXME. I have assigned the values at random | |
170 | since I don't have a Gould here. Fixups from Gould folk welcome... */ | |
171 | __define_stab (N_NBTEXT, 0xF0, "NBTEXT") | |
172 | __define_stab (N_NBDATA, 0xF2, "NBDATA") | |
173 | __define_stab (N_NBBSS, 0xF4, "NBBSS") | |
174 | __define_stab (N_NBSTS, 0xF6, "NBSTS") | |
175 | __define_stab (N_NBLCS, 0xF8, "NBLCS") | |
176 | ||
177 | /* Second symbol entry containing a length-value for the preceding entry. | |
178 | The value is the length. */ | |
179 | __define_stab (N_LENG, 0xfe, "LENG") | |
180 | \f | |
181 | /* The above information, in matrix format. | |
182 | ||
183 | STAB MATRIX | |
184 | _________________________________________________ | |
185 | | 00 - 1F are not dbx stab symbols | | |
186 | | In most cases, the low bit is the EXTernal bit| | |
187 | ||
188 | | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | | |
189 | | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | | |
190 | ||
191 | | 08 BSS | 0A INDR | 0C FN_SEQ | 0E | | |
192 | | 09 |EXT | 0B | 0D | 0F | | |
193 | ||
194 | | 10 | 12 COMM | 14 SETA | 16 SETT | | |
195 | | 11 | 13 | 15 | 17 | | |
196 | ||
197 | | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| | |
198 | | 19 | 1B | 1D | 1F FN | | |
199 | ||
200 | |_______________________________________________| | |
201 | | Debug entries with bit 01 set are unused. | | |
202 | | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | | |
203 | | 28 LCSYM | 2A MAIN | 2C | 2E | | |
204 | | 30 PC | 32 NSYMS | 34 NOMAP | 36 | | |
205 | | 38 OBJ | 3A | 3C OPT | 3E | | |
206 | | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | | |
207 | | 48 BSLINE*| 4A DEFD | 4C | 4E | | |
208 | | 50 EHDECL*| 52 | 54 CATCH | 56 | | |
209 | | 58 | 5A | 5C | 5E | | |
210 | | 60 SSYM | 62 | 64 SO | 66 | | |
211 | | 68 | 6A | 6C | 6E | | |
212 | | 70 | 72 | 74 | 76 | | |
213 | | 78 | 7A | 7C | 7E | | |
214 | | 80 LSYM | 82 BINCL | 84 SOL | 86 | | |
215 | | 88 | 8A | 8C | 8E | | |
216 | | 90 | 92 | 94 | 96 | | |
217 | | 98 | 9A | 9C | 9E | | |
218 | | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | | |
219 | | A8 | AA | AC | AE | | |
220 | | B0 | B2 | B4 | B6 | | |
221 | | B8 | BA | BC | BE | | |
222 | | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | | |
223 | | C8 | CA | CC | CE | | |
224 | | D0 | D2 | D4 | D6 | | |
225 | | D8 | DA | DC | DE | | |
226 | | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | | |
227 | | E8 ECOML | EA | EC | EE | | |
228 | | F0 | F2 | F4 | F6 | | |
229 | | F8 | FA | FC | FE LENG | | |
230 | +-----------------------------------------------+ | |
231 | * 50 EHDECL is also MOD2. | |
232 | * 48 BSLINE is also BROWS. | |
233 | */ |