1 /*
2  * Copyright (c) 2012 Apple Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person
5  * obtaining a copy of this software and associated documentation files
6  * (the "Software"), to deal in the Software without restriction,
7  * including without limitation the rights to use, copy, modify, merge,
8  * publish, distribute, sublicense, and/or sell copies of the Software,
9  * and to permit persons to whom the Software is furnished to do so,
10  * subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18  * NONINFRINGEMENT.  IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
19  * HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  *
24  * Except as contained in this notice, the name(s) of the above
25  * copyright holders shall not be used in advertising or otherwise to
26  * promote the sale, use or other dealings in this Software without
27  * prior written authorization.
28  */
29 
30 #include <sys/cdefs.h>
31 #include <asl.h>
32 #include <stdio.h>
33 #include <stdbool.h>
34 #include <stdint.h>
35 #include <stdlib.h>
36 #include <inttypes.h>
37 #include <pthread.h>
38 #include "apple_glx_log.h"
39 
40 static bool diagnostic = false;
41 static aslclient aslc;
42 
apple_glx_log_init(void)43 void apple_glx_log_init(void) {
44     if (getenv("LIBGL_DIAGNOSTIC")) {
45         diagnostic = true;
46     }
47 
48     aslc = asl_open(NULL, NULL, 0);
49 }
50 
_apple_glx_log(int level,const char * file,const char * function,int line,const char * fmt,...)51 void _apple_glx_log(int level, const char *file, const char *function,
52                     int line, const char *fmt, ...) {
53     va_list v;
54     va_start(v, fmt);
55     _apple_glx_vlog(level, file, function, line, fmt, v);
56     va_end(v);
57 }
58 
59 static const char *
_asl_level_string(int level)60 _asl_level_string(int level)
61 {
62         if (level == ASL_LEVEL_EMERG) return ASL_STRING_EMERG;
63         if (level == ASL_LEVEL_ALERT) return ASL_STRING_ALERT;
64         if (level == ASL_LEVEL_CRIT) return ASL_STRING_CRIT;
65         if (level == ASL_LEVEL_ERR) return ASL_STRING_ERR;
66         if (level == ASL_LEVEL_WARNING) return ASL_STRING_WARNING;
67         if (level == ASL_LEVEL_NOTICE) return ASL_STRING_NOTICE;
68         if (level == ASL_LEVEL_INFO) return ASL_STRING_INFO;
69         if (level == ASL_LEVEL_DEBUG) return ASL_STRING_DEBUG;
70         return "unknown";
71 }
72 
_apple_glx_vlog(int level,const char * file,const char * function,int line,const char * fmt,va_list args)73 void _apple_glx_vlog(int level, const char *file, const char *function,
74                      int line, const char *fmt, va_list args) {
75     aslmsg msg;
76     uint64_t thread = 0;
77 
78     if (pthread_is_threaded_np()) {
79 #if MAC_OS_X_VERSION_MAX_ALLOWED < 1060
80         thread = (uint64_t)(uintptr_t)pthread_self();
81 #elif MAC_OS_X_VERSION_MIN_REQUIRED < 1060
82         if (&pthread_threadid_np) {
83             pthread_threadid_np(NULL, &thread);
84         } else {
85             thread = (uint64_t)(uintptr_t)pthread_self();
86         }
87 #else
88         pthread_threadid_np(NULL, &thread);
89 #endif
90     }
91 
92     if (diagnostic) {
93         va_list args2;
94         va_copy(args2, args);
95 
96         fprintf(stderr, "%-9s %24s:%-4d %s(%"PRIu64"): ",
97                 _asl_level_string(level), file, line, function, thread);
98         vfprintf(stderr, fmt, args2);
99     }
100 
101     msg = asl_new(ASL_TYPE_MSG);
102     if (msg) {
103         if (file)
104             asl_set(msg, "File", file);
105         if (function)
106             asl_set(msg, "Function", function);
107         if (line) {
108             char *_line;
109             asprintf(&_line, "%d", line);
110             if (_line) {
111                 asl_set(msg, "Line", _line);
112                 free(_line);
113             }
114         }
115         if (pthread_is_threaded_np()) {
116             char *_thread;
117             asprintf(&_thread, "%"PRIu64, thread);
118             if (_thread) {
119                 asl_set(msg, "Thread", _thread);
120                 free(_thread);
121             }
122         }
123     }
124 
125     asl_vlog(aslc, msg, level, fmt, args);
126     if (msg)
127         asl_free(msg);
128 }
129