2 * Copyright (C) 2018 Stefan Schake <stschake@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 #include <backtrace/Backtrace.h>
26 #include "util/u_debug.h"
27 #include "u_debug_stack.h"
28 #include "util/hash_table.h"
29 #include "os/os_thread.h"
31 static hash_table
*symbol_table
;
32 static mtx_t table_mutex
= _MTX_INITIALIZER_NP
;
35 intern_symbol(const char *symbol
)
38 symbol_table
= _mesa_hash_table_create(NULL
, NULL
, _mesa_key_string_equal
);
40 uint32_t hash
= _mesa_hash_string(symbol
);
42 _mesa_hash_table_search_pre_hashed(symbol_table
, hash
, symbol
);
44 entry
= _mesa_hash_table_insert_pre_hashed(symbol_table
, hash
, symbol
, strdup(symbol
));
46 return (const char *) entry
->data
;
50 debug_backtrace_capture(debug_stack_frame
*backtrace
,
59 bt
= Backtrace::Create(BACKTRACE_CURRENT_PROCESS
,
60 BACKTRACE_CURRENT_THREAD
);
62 for (unsigned i
= 0; i
< nr_frames
; i
++)
63 backtrace
[i
].procname
= NULL
;
67 /* Add one to exclude this call. Unwind already ignores itself. */
68 bt
->Unwind(start_frame
+ 1);
70 mtx_lock(&table_mutex
);
72 for (unsigned i
= 0; i
< nr_frames
; i
++) {
73 const backtrace_frame_data_t
* frame
= bt
->GetFrame(i
);
75 backtrace
[i
].procname
= intern_symbol(frame
->func_name
.c_str());
76 backtrace
[i
].start_ip
= frame
->pc
;
77 backtrace
[i
].off
= frame
->func_offset
;
78 backtrace
[i
].map
= intern_symbol(frame
->map
.Name().c_str());
79 backtrace
[i
].map_off
= frame
->rel_pc
;
81 backtrace
[i
].procname
= NULL
;
85 mtx_unlock(&table_mutex
);
91 debug_backtrace_dump(const debug_stack_frame
*backtrace
,
94 for (unsigned i
= 0; i
< nr_frames
; i
++) {
95 if (backtrace
[i
].procname
)
97 "%s(+0x%x)\t%012" PRIx64
": %s+0x%x\n",
100 backtrace
[i
].start_ip
,
101 backtrace
[i
].procname
,
107 debug_backtrace_print(FILE *f
,
108 const debug_stack_frame
*backtrace
,
111 for (unsigned i
= 0; i
< nr_frames
; i
++) {
112 if (backtrace
[i
].procname
)
114 "%s(+0x%x)\t%012" PRIx64
": %s+0x%x\n",
116 backtrace
[i
].map_off
,
117 backtrace
[i
].start_ip
,
118 backtrace
[i
].procname
,