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1291085e JG |
1 | /* Table of DBX symbol codes for the GNU system. |
2 | Copyright (C) 1988, 1991 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
a6763552 | 16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
1291085e | 17 | \f |
a6763552 ILT |
18 | /* New stab from Solaris 2. This uses an n_type of 0, which in a.out files |
19 | overlaps the N_UNDF used for ordinary symbols. In ELF files, the | |
20 | debug information is in a different file section, so there is no conflict. | |
21 | This symbol's n_value gives the size of the string section associated | |
22 | with this file. The symbol's n_strx (relative to the just-updated | |
23 | string section start address) gives the name of the source file, | |
24 | e.g. "foo.c", without any path information. The symbol's n_desc gives | |
25 | the count of upcoming symbols associated with this file (not including | |
26 | this one). */ | |
27 | /* __define_stab (N_UNDF, 0x00, "UNDF") */ | |
28 | ||
1291085e JG |
29 | /* Global variable. Only the name is significant. |
30 | To find the address, look in the corresponding external symbol. */ | |
31 | __define_stab (N_GSYM, 0x20, "GSYM") | |
32 | ||
33 | /* Function name for BSD Fortran. Only the name is significant. | |
34 | To find the address, look in the corresponding external symbol. */ | |
35 | __define_stab (N_FNAME, 0x22, "FNAME") | |
36 | ||
37 | /* Function name or text-segment variable for C. Value is its address. | |
38 | Desc is supposedly starting line number, but GCC doesn't set it | |
39 | and DBX seems not to miss it. */ | |
40 | __define_stab (N_FUN, 0x24, "FUN") | |
41 | ||
42 | /* Data-segment variable with internal linkage. Value is its address. | |
43 | "Static Sym". */ | |
44 | __define_stab (N_STSYM, 0x26, "STSYM") | |
45 | ||
46 | /* BSS-segment variable with internal linkage. Value is its address. */ | |
47 | __define_stab (N_LCSYM, 0x28, "LCSYM") | |
48 | ||
a6763552 | 49 | /* Name of main routine. Only the name is significant. */ |
1291085e JG |
50 | __define_stab (N_MAIN, 0x2a, "MAIN") |
51 | ||
a6763552 ILT |
52 | /* Solaris2: Read-only data symbols. */ |
53 | __define_stab (N_ROSYM, 0x2c, "ROSYM") | |
54 | ||
1291085e JG |
55 | /* Global symbol in Pascal. |
56 | Supposedly the value is its line number; I'm skeptical. */ | |
57 | __define_stab (N_PC, 0x30, "PC") | |
58 | ||
59 | /* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ | |
60 | __define_stab (N_NSYMS, 0x32, "NSYMS") | |
61 | ||
62 | /* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ | |
63 | __define_stab (N_NOMAP, 0x34, "NOMAP") | |
64 | ||
a6763552 ILT |
65 | /* New stab from Solaris 2. Like N_SO, but for the object file. Two in |
66 | a row provide the build directory and the relative path of the .o from it. | |
67 | Solaris2 uses this to avoid putting the stabs info into the linked | |
68 | executable; this stab goes into the ".stab.index" section, and the debugger | |
69 | reads the real stabs directly from the .o files instead. */ | |
1291085e JG |
70 | __define_stab (N_OBJ, 0x38, "OBJ") |
71 | ||
a6763552 ILT |
72 | /* New stab from Solaris 2. Options for the debugger, related to the |
73 | source language for this module. E.g. whether to use ANSI | |
74 | integral promotions or traditional integral promotions. */ | |
1291085e JG |
75 | __define_stab (N_OPT, 0x3c, "OPT") |
76 | ||
77 | /* Register variable. Value is number of register. */ | |
78 | __define_stab (N_RSYM, 0x40, "RSYM") | |
79 | ||
80 | /* Modula-2 compilation unit. Can someone say what info it contains? */ | |
81 | __define_stab (N_M2C, 0x42, "M2C") | |
82 | ||
83 | /* Line number in text segment. Desc is the line number; | |
a6763552 ILT |
84 | value is corresponding address. On Solaris2, the line number is |
85 | relative to the start of the current function. */ | |
1291085e JG |
86 | __define_stab (N_SLINE, 0x44, "SLINE") |
87 | ||
88 | /* Similar, for data segment. */ | |
89 | __define_stab (N_DSLINE, 0x46, "DSLINE") | |
90 | ||
91 | /* Similar, for bss segment. */ | |
92 | __define_stab (N_BSLINE, 0x48, "BSLINE") | |
93 | ||
94 | /* Sun's source-code browser stabs. ?? Don't know what the fields are. | |
95 | Supposedly the field is "path to associated .cb file". THIS VALUE | |
96 | OVERLAPS WITH N_BSLINE! */ | |
a6763552 | 97 | __define_stab_duplicate (N_BROWS, 0x48, "BROWS") |
1291085e JG |
98 | |
99 | /* GNU Modula-2 definition module dependency. Value is the modification time | |
100 | of the definition file. Other is non-zero if it is imported with the | |
101 | GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there | |
102 | are enough empty fields? */ | |
103 | __define_stab(N_DEFD, 0x4a, "DEFD") | |
104 | ||
a6763552 ILT |
105 | /* New in Solaris2. Function start/body/end line numbers. */ |
106 | __define_stab(N_FLINE, 0x4C, "FLINE") | |
107 | ||
1291085e JG |
108 | /* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 |
109 | and one is for C++. Still,... */ | |
110 | /* GNU C++ exception variable. Name is variable name. */ | |
111 | __define_stab (N_EHDECL, 0x50, "EHDECL") | |
112 | /* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ | |
a6763552 | 113 | __define_stab_duplicate (N_MOD2, 0x50, "MOD2") |
1291085e JG |
114 | |
115 | /* GNU C++ `catch' clause. Value is its address. Desc is nonzero if | |
116 | this entry is immediately followed by a CAUGHT stab saying what exception | |
117 | was caught. Multiple CAUGHT stabs means that multiple exceptions | |
118 | can be caught here. If Desc is 0, it means all exceptions are caught | |
119 | here. */ | |
120 | __define_stab (N_CATCH, 0x54, "CATCH") | |
121 | ||
122 | /* Structure or union element. Value is offset in the structure. */ | |
123 | __define_stab (N_SSYM, 0x60, "SSYM") | |
124 | ||
a6763552 ILT |
125 | /* Solaris2: Last stab emitted for module. */ |
126 | __define_stab (N_ENDM, 0x62, "ENDM") | |
127 | ||
1291085e | 128 | /* Name of main source file. |
a6763552 ILT |
129 | Value is starting text address of the compilation. |
130 | If multiple N_SO's appear, the first to contain a trailing / is the | |
131 | compilation directory. The first to not contain a trailing / is the | |
132 | source file name, relative to the compilation directory. Others (perhaps | |
133 | resulting from cfront) are ignored. | |
134 | On Solaris2, value is undefined, but desc is a source-language code. */ | |
135 | ||
1291085e JG |
136 | __define_stab (N_SO, 0x64, "SO") |
137 | ||
138 | /* Automatic variable in the stack. Value is offset from frame pointer. | |
139 | Also used for type descriptions. */ | |
140 | __define_stab (N_LSYM, 0x80, "LSYM") | |
141 | ||
142 | /* Beginning of an include file. Only Sun uses this. | |
143 | In an object file, only the name is significant. | |
144 | The Sun linker puts data into some of the other fields. */ | |
145 | __define_stab (N_BINCL, 0x82, "BINCL") | |
146 | ||
147 | /* Name of sub-source file (#include file). | |
148 | Value is starting text address of the compilation. */ | |
149 | __define_stab (N_SOL, 0x84, "SOL") | |
150 | ||
151 | /* Parameter variable. Value is offset from argument pointer. | |
152 | (On most machines the argument pointer is the same as the frame pointer. */ | |
153 | __define_stab (N_PSYM, 0xa0, "PSYM") | |
154 | ||
155 | /* End of an include file. No name. | |
156 | This and N_BINCL act as brackets around the file's output. | |
157 | In an object file, there is no significant data in this entry. | |
158 | The Sun linker puts data into some of the fields. */ | |
159 | __define_stab (N_EINCL, 0xa2, "EINCL") | |
160 | ||
161 | /* Alternate entry point. Value is its address. */ | |
162 | __define_stab (N_ENTRY, 0xa4, "ENTRY") | |
163 | ||
164 | /* Beginning of lexical block. | |
165 | The desc is the nesting level in lexical blocks. | |
166 | The value is the address of the start of the text for the block. | |
a6763552 ILT |
167 | The variables declared inside the block *precede* the N_LBRAC symbol. |
168 | On Solaris2, the value is relative to the start of the current function. */ | |
1291085e JG |
169 | __define_stab (N_LBRAC, 0xc0, "LBRAC") |
170 | ||
171 | /* Place holder for deleted include file. Replaces a N_BINCL and everything | |
172 | up to the corresponding N_EINCL. The Sun linker generates these when | |
173 | it finds multiple identical copies of the symbols from an include file. | |
174 | This appears only in output from the Sun linker. */ | |
175 | __define_stab (N_EXCL, 0xc2, "EXCL") | |
176 | ||
177 | /* Modula-2 scope information. Can someone say what info it contains? */ | |
178 | __define_stab (N_SCOPE, 0xc4, "SCOPE") | |
179 | ||
180 | /* End of a lexical block. Desc matches the N_LBRAC's desc. | |
a6763552 ILT |
181 | The value is the address of the end of the text for the block. |
182 | On Solaris2, the value is relative to the start of the current function. */ | |
1291085e JG |
183 | __define_stab (N_RBRAC, 0xe0, "RBRAC") |
184 | ||
185 | /* Begin named common block. Only the name is significant. */ | |
186 | __define_stab (N_BCOMM, 0xe2, "BCOMM") | |
187 | ||
188 | /* End named common block. Only the name is significant | |
189 | (and it should match the N_BCOMM). */ | |
190 | __define_stab (N_ECOMM, 0xe4, "ECOMM") | |
191 | ||
a6763552 ILT |
192 | /* Member of a common block; value is offset within the common block. |
193 | This should occur within a BCOMM/ECOMM pair. */ | |
1291085e JG |
194 | __define_stab (N_ECOML, 0xe8, "ECOML") |
195 | ||
a6763552 ILT |
196 | /* Solaris2: Pascal "with" statement: type,,0,0,offset */ |
197 | __define_stab (N_WITH, 0xea, "WITH") | |
198 | ||
1291085e JG |
199 | /* These STAB's are used on Gould systems for Non-Base register symbols |
200 | or something like that. FIXME. I have assigned the values at random | |
201 | since I don't have a Gould here. Fixups from Gould folk welcome... */ | |
202 | __define_stab (N_NBTEXT, 0xF0, "NBTEXT") | |
203 | __define_stab (N_NBDATA, 0xF2, "NBDATA") | |
204 | __define_stab (N_NBBSS, 0xF4, "NBBSS") | |
205 | __define_stab (N_NBSTS, 0xF6, "NBSTS") | |
206 | __define_stab (N_NBLCS, 0xF8, "NBLCS") | |
207 | ||
208 | /* Second symbol entry containing a length-value for the preceding entry. | |
209 | The value is the length. */ | |
210 | __define_stab (N_LENG, 0xfe, "LENG") | |
211 | \f | |
212 | /* The above information, in matrix format. | |
213 | ||
214 | STAB MATRIX | |
215 | _________________________________________________ | |
216 | | 00 - 1F are not dbx stab symbols | | |
217 | | In most cases, the low bit is the EXTernal bit| | |
218 | ||
219 | | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | | |
220 | | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | | |
221 | ||
a6763552 ILT |
222 | | 08 BSS | 0A INDR | 0C FN_SEQ | 0E WEAKA | |
223 | | 09 |EXT | 0B | 0D WEAKU | 0F WEAKT | | |
1291085e | 224 | |
a6763552 ILT |
225 | | 10 WEAKD | 12 COMM | 14 SETA | 16 SETT | |
226 | | 11 WEAKB | 13 | 15 | 17 | | |
1291085e JG |
227 | |
228 | | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| | |
229 | | 19 | 1B | 1D | 1F FN | | |
230 | ||
231 | |_______________________________________________| | |
232 | | Debug entries with bit 01 set are unused. | | |
233 | | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | | |
a6763552 | 234 | | 28 LCSYM | 2A MAIN | 2C ROSYM | 2E | |
1291085e JG |
235 | | 30 PC | 32 NSYMS | 34 NOMAP | 36 | |
236 | | 38 OBJ | 3A | 3C OPT | 3E | | |
237 | | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | | |
a6763552 | 238 | | 48 BSLINE*| 4A DEFD | 4C FLINE | 4E | |
1291085e JG |
239 | | 50 EHDECL*| 52 | 54 CATCH | 56 | |
240 | | 58 | 5A | 5C | 5E | | |
a6763552 | 241 | | 60 SSYM | 62 ENDM | 64 SO | 66 | |
1291085e JG |
242 | | 68 | 6A | 6C | 6E | |
243 | | 70 | 72 | 74 | 76 | | |
244 | | 78 | 7A | 7C | 7E | | |
245 | | 80 LSYM | 82 BINCL | 84 SOL | 86 | | |
246 | | 88 | 8A | 8C | 8E | | |
247 | | 90 | 92 | 94 | 96 | | |
248 | | 98 | 9A | 9C | 9E | | |
249 | | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | | |
250 | | A8 | AA | AC | AE | | |
251 | | B0 | B2 | B4 | B6 | | |
252 | | B8 | BA | BC | BE | | |
253 | | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | | |
254 | | C8 | CA | CC | CE | | |
255 | | D0 | D2 | D4 | D6 | | |
256 | | D8 | DA | DC | DE | | |
257 | | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | | |
a6763552 | 258 | | E8 ECOML | EA WITH | EC | EE | |
1291085e JG |
259 | | F0 | F2 | F4 | F6 | |
260 | | F8 | FA | FC | FE LENG | | |
261 | +-----------------------------------------------+ | |
262 | * 50 EHDECL is also MOD2. | |
263 | * 48 BSLINE is also BROWS. | |
264 | */ |