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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 | ||
46 | /* TODO: Use debuginfod API extensions instead of these globals. */ | |
47 | static std::string desc; | |
48 | static std::string fname; | |
49 | static bool has_printed; | |
50 | ||
51 | static int | |
52 | progressfn (debuginfod_client *c, long cur, long total) | |
53 | { | |
54 | if (check_quit_flag ()) | |
55 | { | |
56 | printf_filtered ("Cancelling download of %s %ps...\n", | |
57 | desc.c_str (), | |
58 | styled_string (file_name_style.style (), fname.c_str ())); | |
59 | return 1; | |
60 | } | |
61 | ||
62 | if (!has_printed && total != 0) | |
63 | { | |
64 | /* Print this message only once. */ | |
65 | has_printed = true; | |
66 | printf_filtered ("Downloading %s %ps...\n", | |
67 | desc.c_str (), | |
68 | styled_string (file_name_style.style (), fname.c_str ())); | |
69 | } | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | static debuginfod_client * | |
75 | debuginfod_init () | |
76 | { | |
77 | debuginfod_client *c = debuginfod_begin (); | |
78 | ||
79 | if (c != nullptr) | |
80 | debuginfod_set_progressfn (c, progressfn); | |
81 | ||
82 | return c; | |
83 | } | |
84 | ||
85 | /* See debuginfod-support.h */ | |
86 | ||
87 | scoped_fd | |
88 | debuginfod_source_query (const unsigned char *build_id, | |
89 | int build_id_len, | |
90 | const char *srcpath, | |
91 | gdb::unique_xmalloc_ptr<char> *destname) | |
92 | { | |
93 | if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL) | |
94 | return scoped_fd (-ENOSYS); | |
95 | ||
96 | debuginfod_client *c = debuginfod_init (); | |
97 | ||
98 | if (c == nullptr) | |
99 | return scoped_fd (-ENOMEM); | |
100 | ||
101 | desc = std::string ("source file"); | |
102 | fname = std::string (srcpath); | |
103 | has_printed = false; | |
104 | ||
105 | scoped_fd fd (debuginfod_find_source (c, | |
106 | build_id, | |
107 | build_id_len, | |
108 | srcpath, | |
109 | nullptr)); | |
110 | ||
111 | /* TODO: Add 'set debug debuginfod' command to control when error messages are shown. */ | |
112 | if (fd.get () < 0 && fd.get () != -ENOENT) | |
113 | printf_filtered (_("Download failed: %s. Continuing without source file %ps.\n"), | |
114 | safe_strerror (-fd.get ()), | |
115 | styled_string (file_name_style.style (), srcpath)); | |
116 | else | |
117 | destname->reset (xstrdup (srcpath)); | |
118 | ||
119 | debuginfod_end (c); | |
120 | return fd; | |
121 | } | |
122 | ||
123 | /* See debuginfod-support.h */ | |
124 | ||
125 | scoped_fd | |
126 | debuginfod_debuginfo_query (const unsigned char *build_id, | |
127 | int build_id_len, | |
128 | const char *filename, | |
129 | gdb::unique_xmalloc_ptr<char> *destname) | |
130 | { | |
131 | if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL) | |
132 | return scoped_fd (-ENOSYS); | |
133 | ||
134 | debuginfod_client *c = debuginfod_init (); | |
135 | ||
136 | if (c == nullptr) | |
137 | return scoped_fd (-ENOMEM); | |
138 | ||
139 | desc = std::string ("separate debug info for"); | |
140 | fname = std::string (filename); | |
141 | has_printed = false; | |
142 | char *dname = nullptr; | |
143 | ||
144 | scoped_fd fd (debuginfod_find_debuginfo (c, build_id, build_id_len, &dname)); | |
145 | ||
146 | if (fd.get () < 0 && fd.get () != -ENOENT) | |
147 | printf_filtered (_("Download failed: %s. Continuing without debug info for %ps.\n"), | |
148 | safe_strerror (-fd.get ()), | |
149 | styled_string (file_name_style.style (), filename)); | |
150 | ||
151 | destname->reset (dname); | |
152 | debuginfod_end (c); | |
153 | return fd; | |
154 | } | |
155 | #endif |