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      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 "c99_alloca.h"
     37 #include "os/os_process.h"
     38 #include "util/u_debug.h"
     39 
     40 /* name of the directory in home */
     41 #define DD_DIR "ddebug_dumps"
     42 
     43 static inline FILE *
     44 dd_get_debug_file(bool verbose)
     45 {
     46    static unsigned index;
     47    char proc_name[128], dir[256], name[512];
     48    FILE *f;
     49 
     50    if (!os_get_process_name(proc_name, sizeof(proc_name))) {
     51       fprintf(stderr, "dd: can't get the process name\n");
     52       return NULL;
     53    }
     54 
     55    snprintf(dir, sizeof(dir), "%s/"DD_DIR, debug_get_option("HOME", "."));
     56 
     57    if (mkdir(dir, 0774) && errno != EEXIST) {
     58       fprintf(stderr, "dd: can't create a directory (%i)\n", errno);
     59       return NULL;
     60    }
     61 
     62    snprintf(name, sizeof(name), "%s/%s_%u_%08u", dir, proc_name, getpid(), index++);
     63    f = fopen(name, "w");
     64    if (!f) {
     65       fprintf(stderr, "dd: can't open file %s\n", name);
     66       return NULL;
     67    }
     68 
     69    if (verbose)
     70       fprintf(stderr, "dd: dumping to file %s\n", name);
     71 
     72    return f;
     73 }
     74 
     75 static inline void
     76 dd_parse_apitrace_marker(const char *string, int len, unsigned *call_number)
     77 {
     78    unsigned num;
     79    char *s;
     80 
     81    if (len <= 0)
     82       return;
     83 
     84    /* Make it zero-terminated. */
     85    s = alloca(len + 1);
     86    memcpy(s, string, len);
     87    s[len] = 0;
     88 
     89    /* Parse the number. */
     90    errno = 0;
     91    num = strtol(s, NULL, 10);
     92    if (errno)
     93       return;
     94 
     95    *call_number = num;
     96 }
     97 
     98 #endif /* DD_UTIL_H */
     99