1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/* debuginfod utilities for GDB.
Copyright (C) 2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include <errno.h>
#include "cli/cli-style.h"
#include "gdbsupport/scoped_fd.h"
#include "debuginfod-support.h"
#ifndef HAVE_LIBDEBUGINFOD
scoped_fd
debuginfod_source_query (const unsigned char *build_id,
int build_id_len,
const char *srcpath,
gdb::unique_xmalloc_ptr<char> *destname)
{
return scoped_fd (-ENOSYS);
}
scoped_fd
debuginfod_debuginfo_query (const unsigned char *build_id,
int build_id_len,
const char *filename,
gdb::unique_xmalloc_ptr<char> *destname)
{
return scoped_fd (-ENOSYS);
}
#else
#include <elfutils/debuginfod.h>
struct user_data
{
user_data (const char *desc, const char *fname)
: desc (desc), fname (fname), has_printed (false)
{ }
const char * const desc;
const char * const fname;
bool has_printed;
};
/* Deleter for a debuginfod_client. */
struct debuginfod_client_deleter
{
void operator() (debuginfod_client *c)
{
debuginfod_end (c);
}
};
using debuginfod_client_up
= std::unique_ptr<debuginfod_client, debuginfod_client_deleter>;
static int
progressfn (debuginfod_client *c, long cur, long total)
{
user_data *data = static_cast<user_data *> (debuginfod_get_user_data (c));
if (check_quit_flag ())
{
printf_filtered ("Cancelling download of %s %ps...\n",
data->desc,
styled_string (file_name_style.style (), data->fname));
return 1;
}
if (!data->has_printed && total != 0)
{
/* Print this message only once. */
data->has_printed = true;
printf_filtered ("Downloading %s %ps...\n",
data->desc,
styled_string (file_name_style.style (), data->fname));
}
return 0;
}
static debuginfod_client_up
debuginfod_init ()
{
debuginfod_client_up c (debuginfod_begin ());
if (c != nullptr)
debuginfod_set_progressfn (c.get (), progressfn);
return c;
}
/* See debuginfod-support.h */
scoped_fd
debuginfod_source_query (const unsigned char *build_id,
int build_id_len,
const char *srcpath,
gdb::unique_xmalloc_ptr<char> *destname)
{
if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL)
return scoped_fd (-ENOSYS);
debuginfod_client_up c = debuginfod_init ();
if (c == nullptr)
return scoped_fd (-ENOMEM);
user_data data ("source file", srcpath);
debuginfod_set_user_data (c.get (), &data);
scoped_fd fd (debuginfod_find_source (c.get (),
build_id,
build_id_len,
srcpath,
nullptr));
/* TODO: Add 'set debug debuginfod' command to control when error messages are shown. */
if (fd.get () < 0 && fd.get () != -ENOENT)
printf_filtered (_("Download failed: %s. Continuing without source file %ps.\n"),
safe_strerror (-fd.get ()),
styled_string (file_name_style.style (), srcpath));
else
*destname = make_unique_xstrdup (srcpath);
return fd;
}
/* See debuginfod-support.h */
scoped_fd
debuginfod_debuginfo_query (const unsigned char *build_id,
int build_id_len,
const char *filename,
gdb::unique_xmalloc_ptr<char> *destname)
{
if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL)
return scoped_fd (-ENOSYS);
debuginfod_client_up c = debuginfod_init ();
if (c == nullptr)
return scoped_fd (-ENOMEM);
char *dname = nullptr;
user_data data ("separate debug info for", filename);
debuginfod_set_user_data (c.get (), &data);
scoped_fd fd (debuginfod_find_debuginfo (c.get (), build_id, build_id_len,
&dname));
if (fd.get () < 0 && fd.get () != -ENOENT)
printf_filtered (_("Download failed: %s. Continuing without debug info for %ps.\n"),
safe_strerror (-fd.get ()),
styled_string (file_name_style.style (), filename));
destname->reset (dname);
return fd;
}
#endif
|
