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fd67aa11 | 1 | /* Copyright (C) 2021-2024 Free Software Foundation, Inc. |
bb368aad VM |
2 | Contributed by Oracle. |
3 | ||
4 | This file is part of GNU Binutils. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #include "config.h" | |
22 | #include <unistd.h> | |
23 | ||
24 | #include "util.h" | |
25 | #include "DbeSession.h" | |
26 | #include "Function.h" | |
27 | #include "SourceFile.h" | |
28 | #include "DefaultMap.h" | |
29 | #include "DbeFile.h" | |
30 | #include "LoadObject.h" | |
31 | #include "Module.h" | |
32 | ||
33 | int SourceFile::curId = 0; | |
34 | ||
35 | SourceFile::SourceFile (const char *file_name) | |
36 | { | |
37 | status = OS_NOTREAD; | |
38 | srcLines = NULL; | |
39 | srcInode = -1; | |
40 | lines = NULL; | |
41 | dbeLines = NULL; | |
42 | functions = new DefaultMap<Function *, Function *>(); | |
43 | dbeFile = new DbeFile (file_name); | |
44 | dbeFile->filetype |= DbeFile::F_SOURCE | DbeFile::F_FILE; | |
45 | set_name ((char *) file_name); | |
46 | srcMTime = (time_t) 0; | |
47 | isTmpFile = false; | |
48 | flags = 0; | |
49 | read_stabs = false; | |
50 | id = (uint64_t) ((Histable::SOURCEFILE << 24) + curId) << 32; | |
51 | curId++; | |
52 | } | |
53 | ||
54 | SourceFile::~SourceFile () | |
55 | { | |
56 | destroy_map (DbeLine *, dbeLines); | |
57 | delete functions; | |
58 | delete dbeFile; | |
59 | if (lines) | |
60 | { | |
61 | lines->destroy (); | |
62 | delete lines; | |
63 | } | |
64 | if (srcLines) | |
65 | { | |
66 | free (srcLines->get (0)); | |
67 | delete srcLines; | |
68 | } | |
69 | if (isTmpFile) | |
70 | unlink (name); | |
71 | } | |
72 | ||
73 | void | |
74 | SourceFile::set_name (char* _name) | |
75 | { | |
76 | name = dbe_strdup (_name); | |
77 | } | |
78 | ||
79 | char* | |
80 | SourceFile::get_name (NameFormat) | |
81 | { | |
82 | return name; | |
83 | } | |
84 | ||
85 | bool | |
86 | SourceFile::readSource () | |
87 | { | |
88 | if (srcLines) | |
89 | return true; | |
90 | status = OS_NOSRC; | |
91 | char *location = dbeFile->get_location (); | |
92 | if (location == NULL) | |
93 | return false; | |
94 | if (!isTmpFile) | |
95 | srcMTime = dbeFile->sbuf.st_mtime; | |
96 | srcInode = dbeFile->sbuf.st_ino; | |
97 | size_t srcLen = dbeFile->sbuf.st_size; | |
98 | int fd = open64 (location, O_RDONLY); | |
99 | if (fd == -1) | |
100 | { | |
101 | status = OS_NOSRC; | |
102 | return false; | |
103 | } | |
104 | char *srcMap = (char *) malloc (srcLen + 1); | |
105 | int64_t sz = read_from_file (fd, srcMap, srcLen); | |
106 | if (sz != (int64_t) srcLen) | |
107 | append_msg (CMSG_ERROR, GTXT ("%s: Can read only %lld bytes instead %lld"), | |
108 | location, (long long) sz, (long long) srcLen); | |
109 | srcMap[sz] = 0; | |
110 | close (fd); | |
111 | ||
112 | // Count the number of lines in the file, converting <nl> to zero | |
113 | srcLines = new Vector<char*>(); | |
114 | srcLines->append (srcMap); | |
115 | for (int64_t i = 0; i < sz; i++) | |
116 | { | |
117 | if (srcMap[i] == '\r') | |
118 | { // Window style | |
119 | srcMap[i] = 0; | |
120 | if (i + 1 < sz && srcMap[i + 1] != '\n') | |
121 | srcLines->append (srcMap + i + 1); | |
122 | } | |
123 | else if (srcMap[i] == '\n') | |
124 | { | |
125 | srcMap[i] = '\0'; | |
126 | if (i + 1 < sz) | |
127 | srcLines->append (srcMap + i + 1); | |
128 | } | |
129 | } | |
130 | if (dbeLines) | |
131 | { | |
132 | Vector<DbeLine *> *v = dbeLines->values (); | |
133 | for (long i = 0, sz1 = v ? v->size () : 0; i < sz1; i++) | |
134 | { | |
135 | DbeLine *p = v->get (i); | |
136 | if (p->lineno >= srcLines->size ()) | |
137 | append_msg (CMSG_ERROR, GTXT ("Wrong line number %d. '%s' has only %d lines"), | |
53beac2e VM |
138 | (int) p->lineno, dbeFile->get_location (), |
139 | (int) srcLines->size ()); | |
bb368aad VM |
140 | } |
141 | delete v; | |
142 | } | |
143 | status = OS_OK; | |
144 | return true; | |
145 | } | |
146 | ||
147 | char * | |
148 | SourceFile::getLine (int lineno) | |
149 | { | |
150 | assert (srcLines != NULL); | |
151 | if (lineno > 0 && lineno <= srcLines->size ()) | |
152 | return srcLines->get (lineno - 1); | |
153 | return NTXT (""); | |
154 | } | |
155 | ||
156 | DbeLine * | |
157 | SourceFile::find_dbeline (Function *func, int lineno) | |
158 | { | |
159 | if (lineno < 0 || (lineno == 0 && func == NULL)) | |
160 | return NULL; | |
161 | DbeLine *dbeLine = NULL; | |
162 | if (lines) | |
163 | { // the source is available | |
164 | if (lineno > lines->size ()) | |
165 | { | |
166 | if (dbeLines) | |
167 | dbeLine = dbeLines->get (lineno); | |
168 | if (dbeLine == NULL) | |
169 | append_msg (CMSG_ERROR, | |
170 | GTXT ("Wrong line number %d. '%s' has only %d lines"), | |
53beac2e VM |
171 | (int) lineno, dbeFile->get_location (), |
172 | (int) lines->size ()); | |
bb368aad VM |
173 | } |
174 | else | |
175 | { | |
176 | dbeLine = lines->fetch (lineno); | |
177 | if (dbeLine == NULL) | |
178 | { | |
179 | dbeLine = new DbeLine (NULL, this, lineno); | |
180 | lines->store (lineno, dbeLine); | |
181 | } | |
182 | } | |
183 | } | |
184 | if (dbeLine == NULL) | |
185 | { // the source is not yet read or lineno is wrong | |
186 | if (dbeLines == NULL) | |
187 | dbeLines = new DefaultMap<int, DbeLine *>(); | |
188 | dbeLine = dbeLines->get (lineno); | |
189 | if (dbeLine == NULL) | |
190 | { | |
191 | dbeLine = new DbeLine (NULL, this, lineno); | |
192 | dbeLines->put (lineno, dbeLine); | |
193 | } | |
194 | } | |
195 | ||
196 | for (DbeLine *last = dbeLine;; last = last->dbeline_func_next) | |
197 | { | |
198 | if (last->func == func) | |
199 | return last; | |
200 | if (last->dbeline_func_next == NULL) | |
201 | { | |
202 | DbeLine *dl = new DbeLine (func, this, lineno); | |
203 | if (functions->get (func) == NULL) | |
204 | functions->put (func, func); | |
205 | last->dbeline_func_next = dl; | |
206 | dl->dbeline_base = dbeLine; | |
207 | return dl; | |
208 | } | |
209 | } | |
210 | } | |
211 | ||
212 | Vector<Function *> * | |
213 | SourceFile::get_functions () | |
214 | { | |
215 | if (!read_stabs) | |
216 | { | |
217 | // Create all DbeLines for this Source | |
218 | read_stabs = true; | |
219 | Vector<LoadObject *> *lobjs = dbeSession->get_LoadObjects (); | |
220 | for (long i = 0, sz = VecSize (lobjs); i < sz; i++) | |
221 | { | |
222 | LoadObject *lo = lobjs->get (i); | |
223 | for (long i1 = 0, sz1 = VecSize (lo->seg_modules); i1 < sz1; i1++) | |
224 | { | |
225 | Module *mod = lo->seg_modules->get (i1); | |
226 | mod->read_stabs (); | |
227 | } | |
228 | } | |
229 | } | |
230 | return functions->keySet (); | |
231 | } |