src/gallium/drivers/ddebug/dd_util.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2015 Advanced Micro Devices, Inc.
   4  * Copyright 2008 VMware, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  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
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  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 #include <unistd.h>
  34 #include <sys/stat.h>
  35
  36 #include "os/os_process.h"
  37 #include "util/u_debug.h"
  38
  39 /* name of the directory in home */
  40 #define DD_DIR "ddebug_dumps"
  41
  42 static inline FILE *
  43 dd_get_debug_file(bool verbose)
  44 {
  45    static unsigned index;
  46    char proc_name[128], dir[256], name[512];
  47    FILE *f;
  48
  49    if (!os_get_process_name(proc_name, sizeof(proc_name))) {
  50       fprintf(stderr, "dd: can't get the process name\n");
  51       return NULL;
  52    }
  53
  54    snprintf(dir, sizeof(dir), "%s/"DD_DIR, debug_get_option("HOME", "."));
  55
  56    if (mkdir(dir, 0774) && errno != EEXIST) {
  57       fprintf(stderr, "dd: can't create a directory (%i)\n", errno);
  58       return NULL;
  59    }
  60
  61    snprintf(name, sizeof(name), "%s/%s_%u_%08u", dir, proc_name, getpid(), index++);
  62    f = fopen(name, "w");
  63    if (!f) {
  64       fprintf(stderr, "dd: can't open file %s\n", name);
  65       return NULL;
  66    }
  67
  68    if (verbose)
  69       fprintf(stderr, "dd: dumping to file %s\n", name);
  70
  71    return f;
  72 }
  73
  74 #endif /* DD_UTIL_H */