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      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 #include "util/debug.h"
     40 
     41 static bool diagnostic = false;
     42 static aslclient aslc;
     43 
     44 void apple_glx_log_init(void) {
     45     if (env_var_as_boolean("LIBGL_DIAGNOSTIC", false)) {
     46         diagnostic = true;
     47     }
     48 
     49     aslc = asl_open(NULL, NULL, 0);
     50 }
     51 
     52 void _apple_glx_log(int level, const char *file, const char *function,
     53                     int line, const char *fmt, ...) {
     54     va_list v;
     55     va_start(v, fmt);
     56     _apple_glx_vlog(level, file, function, line, fmt, v);
     57     va_end(v);
     58 }
     59 
     60 static const char *
     61 _asl_level_string(int level)
     62 {
     63         if (level == ASL_LEVEL_EMERG) return ASL_STRING_EMERG;
     64         if (level == ASL_LEVEL_ALERT) return ASL_STRING_ALERT;
     65         if (level == ASL_LEVEL_CRIT) return ASL_STRING_CRIT;
     66         if (level == ASL_LEVEL_ERR) return ASL_STRING_ERR;
     67         if (level == ASL_LEVEL_WARNING) return ASL_STRING_WARNING;
     68         if (level == ASL_LEVEL_NOTICE) return ASL_STRING_NOTICE;
     69         if (level == ASL_LEVEL_INFO) return ASL_STRING_INFO;
     70         if (level == ASL_LEVEL_DEBUG) return ASL_STRING_DEBUG;
     71         return "unknown";
     72 }
     73 
     74 void _apple_glx_vlog(int level, const char *file, const char *function,
     75                      int line, const char *fmt, va_list args) {
     76     aslmsg msg;
     77     uint64_t thread = 0;
     78 
     79     if (pthread_is_threaded_np()) {
     80 #if MAC_OS_X_VERSION_MAX_ALLOWED < 1060
     81         thread = (uint64_t)(uintptr_t)pthread_self();
     82 #elif MAC_OS_X_VERSION_MIN_REQUIRED < 1060
     83         if (&pthread_threadid_np) {
     84             pthread_threadid_np(NULL, &thread);
     85         } else {
     86             thread = (uint64_t)(uintptr_t)pthread_self();
     87         }
     88 #else
     89         pthread_threadid_np(NULL, &thread);
     90 #endif
     91     }
     92 
     93     if (diagnostic) {
     94         va_list args2;
     95         va_copy(args2, args);
     96 
     97         fprintf(stderr, "%-9s %24s:%-4d %s(%"PRIu64"): ",
     98                 _asl_level_string(level), file, line, function, thread);
     99         vfprintf(stderr, fmt, args2);
    100     }
    101 
    102     msg = asl_new(ASL_TYPE_MSG);
    103     if (msg) {
    104         if (file)
    105             asl_set(msg, "File", file);
    106         if (function)
    107             asl_set(msg, "Function", function);
    108         if (line) {
    109             char *_line;
    110             asprintf(&_line, "%d", line);
    111             if (_line) {
    112                 asl_set(msg, "Line", _line);
    113                 free(_line);
    114             }
    115         }
    116         if (pthread_is_threaded_np()) {
    117             char *_thread;
    118             asprintf(&_thread, "%"PRIu64, thread);
    119             if (_thread) {
    120                 asl_set(msg, "Thread", _thread);
    121                 free(_thread);
    122             }
    123         }
    124     }
    125 
    126     asl_vlog(aslc, msg, level, fmt, args);
    127     if (msg)
    128         asl_free(msg);
    129 }
    130