src/gallium/auxiliary/driver_ddebug/dd_util.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2015 Advanced Micro Devices, Inc.
   4  * Copyright 2008 VMware, Inc.
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   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
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  10  * on the rights to use, copy, modify, merge, publish, distribute, sub
  11  * license, and/or sell copies of the Software, and to permit persons to whom
  12  * the Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef DD_UTIL_H
  29 #define DD_UTIL_H
  30
  31 #include <stdio.h>
  32 #include <errno.h>
  33
  34 #include "c99_alloca.h"
  35 #include "os/os_process.h"
  36 #include "util/u_atomic.h"
  37 #include "util/u_debug.h"
  38 #include "util/u_string.h"
  39
  40 #include "pipe/p_config.h"
  41 #if defined(PIPE_OS_UNIX)
  42 #include <unistd.h>
  43 #include <sys/stat.h>
  44 #elif defined(PIPE_OS_WINDOWS)
  45 #include <direct.h>
  46 #include <process.h>
  47 #define mkdir(dir, mode) _mkdir(dir)
  48 #endif
  49
  50
  51 /* name of the directory in home */
  52 #define DD_DIR "ddebug_dumps"
  53
  54 static inline void
  55 dd_get_debug_filename_and_mkdir(char *buf, size_t buflen, bool verbose)
  56 {
  57    static unsigned index;
  58    char proc_name[128], dir[256];
  59
  60    if (!os_get_process_name(proc_name, sizeof(proc_name))) {
  61       fprintf(stderr, "dd: can't get the process name\n");
  62       strcpy(proc_name, "unknown");
  63    }
  64
  65    util_snprintf(dir, sizeof(dir), "%s/"DD_DIR, debug_get_option("HOME", "."));
  66
  67    if (mkdir(dir, 0774) && errno != EEXIST)
  68       fprintf(stderr, "dd: can't create a directory (%i)\n", errno);
  69
  70    util_snprintf(buf, buflen, "%s/%s_%u_%08u", dir, proc_name, getpid(),
  71                  p_atomic_inc_return(&index) - 1);
  72
  73    if (verbose)
  74       fprintf(stderr, "dd: dumping to file %s\n", buf);
  75 }
  76
  77 static inline FILE *
  78 dd_get_debug_file(bool verbose)
  79 {
  80    char name[512];
  81    FILE *f;
  82
  83    dd_get_debug_filename_and_mkdir(name, sizeof(name), verbose);
  84    f = fopen(name, "w");
  85    if (!f) {
  86       fprintf(stderr, "dd: can't open file %s\n", name);
  87       return NULL;
  88    }
  89
  90    return f;
  91 }
  92
  93 static inline void
  94 dd_parse_apitrace_marker(const char *string, int len, unsigned *call_number)
  95 {
  96    unsigned num;
  97    char *s;
  98
  99    if (len <= 0)
 100       return;
 101
 102    /* Make it zero-terminated. */
 103    s = alloca(len + 1);
 104    memcpy(s, string, len);
 105    s[len] = 0;
 106
 107    /* Parse the number. */
 108    errno = 0;
 109    num = strtol(s, NULL, 10);
 110    if (errno)
 111       return;
 112
 113    *call_number = num;
 114 }
 115
 116 #endif /* DD_UTIL_H */