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0d79cdc4 AM |
1 | /* debuginfod utilities for GDB. |
2 | Copyright (C) 2020 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
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 of the License, or | |
9 | (at your option) 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, see <http://www.gnu.org/licenses/>. */ | |
18 | ||
0d79cdc4 | 19 | #include "defs.h" |
a84bb2a0 | 20 | #include <errno.h> |
0d79cdc4 AM |
21 | #include "cli/cli-style.h" |
22 | #include "gdbsupport/scoped_fd.h" | |
23 | #include "debuginfod-support.h" | |
24 | ||
25 | #ifndef HAVE_LIBDEBUGINFOD | |
26 | scoped_fd | |
27 | debuginfod_source_query (const unsigned char *build_id, | |
28 | int build_id_len, | |
29 | const char *srcpath, | |
30 | gdb::unique_xmalloc_ptr<char> *destname) | |
31 | { | |
32 | return scoped_fd (-ENOSYS); | |
33 | } | |
34 | ||
35 | scoped_fd | |
36 | debuginfod_debuginfo_query (const unsigned char *build_id, | |
37 | int build_id_len, | |
38 | const char *filename, | |
39 | gdb::unique_xmalloc_ptr<char> *destname) | |
40 | { | |
41 | return scoped_fd (-ENOSYS); | |
42 | } | |
43 | #else | |
44 | #include <elfutils/debuginfod.h> | |
45 | ||
002a3166 AM |
46 | struct user_data |
47 | { | |
48 | user_data (const char *desc, const char *fname) | |
49 | : desc (desc), fname (fname), has_printed (false) | |
50 | { } | |
51 | ||
52 | const char * const desc; | |
53 | const char * const fname; | |
54 | bool has_printed; | |
55 | }; | |
0d79cdc4 AM |
56 | |
57 | static int | |
58 | progressfn (debuginfod_client *c, long cur, long total) | |
59 | { | |
002a3166 AM |
60 | user_data *data = static_cast<user_data *> (debuginfod_get_user_data (c)); |
61 | ||
0d79cdc4 AM |
62 | if (check_quit_flag ()) |
63 | { | |
64 | printf_filtered ("Cancelling download of %s %ps...\n", | |
002a3166 AM |
65 | data->desc, |
66 | styled_string (file_name_style.style (), data->fname)); | |
0d79cdc4 AM |
67 | return 1; |
68 | } | |
69 | ||
002a3166 | 70 | if (!data->has_printed && total != 0) |
0d79cdc4 AM |
71 | { |
72 | /* Print this message only once. */ | |
002a3166 | 73 | data->has_printed = true; |
0d79cdc4 | 74 | printf_filtered ("Downloading %s %ps...\n", |
002a3166 AM |
75 | data->desc, |
76 | styled_string (file_name_style.style (), data->fname)); | |
0d79cdc4 AM |
77 | } |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
82 | static debuginfod_client * | |
83 | debuginfod_init () | |
84 | { | |
85 | debuginfod_client *c = debuginfod_begin (); | |
86 | ||
87 | if (c != nullptr) | |
88 | debuginfod_set_progressfn (c, progressfn); | |
89 | ||
90 | return c; | |
91 | } | |
92 | ||
93 | /* See debuginfod-support.h */ | |
94 | ||
95 | scoped_fd | |
96 | debuginfod_source_query (const unsigned char *build_id, | |
97 | int build_id_len, | |
98 | const char *srcpath, | |
99 | gdb::unique_xmalloc_ptr<char> *destname) | |
100 | { | |
101 | if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL) | |
102 | return scoped_fd (-ENOSYS); | |
103 | ||
104 | debuginfod_client *c = debuginfod_init (); | |
105 | ||
106 | if (c == nullptr) | |
107 | return scoped_fd (-ENOMEM); | |
108 | ||
002a3166 | 109 | user_data data ("source file", srcpath); |
0d79cdc4 | 110 | |
002a3166 | 111 | debuginfod_set_user_data (c, &data); |
0d79cdc4 AM |
112 | scoped_fd fd (debuginfod_find_source (c, |
113 | build_id, | |
114 | build_id_len, | |
115 | srcpath, | |
116 | nullptr)); | |
117 | ||
118 | /* TODO: Add 'set debug debuginfod' command to control when error messages are shown. */ | |
119 | if (fd.get () < 0 && fd.get () != -ENOENT) | |
120 | printf_filtered (_("Download failed: %s. Continuing without source file %ps.\n"), | |
121 | safe_strerror (-fd.get ()), | |
122 | styled_string (file_name_style.style (), srcpath)); | |
123 | else | |
124 | destname->reset (xstrdup (srcpath)); | |
125 | ||
126 | debuginfod_end (c); | |
127 | return fd; | |
128 | } | |
129 | ||
130 | /* See debuginfod-support.h */ | |
131 | ||
132 | scoped_fd | |
133 | debuginfod_debuginfo_query (const unsigned char *build_id, | |
134 | int build_id_len, | |
135 | const char *filename, | |
136 | gdb::unique_xmalloc_ptr<char> *destname) | |
137 | { | |
138 | if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL) | |
139 | return scoped_fd (-ENOSYS); | |
140 | ||
141 | debuginfod_client *c = debuginfod_init (); | |
142 | ||
143 | if (c == nullptr) | |
144 | return scoped_fd (-ENOMEM); | |
145 | ||
0d79cdc4 | 146 | char *dname = nullptr; |
002a3166 | 147 | user_data data ("separate debug info for", filename); |
0d79cdc4 | 148 | |
002a3166 | 149 | debuginfod_set_user_data (c, &data); |
0d79cdc4 AM |
150 | scoped_fd fd (debuginfod_find_debuginfo (c, build_id, build_id_len, &dname)); |
151 | ||
152 | if (fd.get () < 0 && fd.get () != -ENOENT) | |
153 | printf_filtered (_("Download failed: %s. Continuing without debug info for %ps.\n"), | |
154 | safe_strerror (-fd.get ()), | |
155 | styled_string (file_name_style.style (), filename)); | |
156 | ||
157 | destname->reset (dname); | |
158 | debuginfod_end (c); | |
159 | return fd; | |
160 | } | |
161 | #endif |