ddebug: separate creation of debug files

This will be used by radeonsi for logging.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

src/gallium/drivers/ddebug/dd_draw.c

@@ -30,9 +30,6 @@
 #include "util/u_dump.h"
 #include "util/u_format.h"
 #include "tgsi/tgsi_scan.h"
-#include "os/os_process.h"
-#include <errno.h>
-#include <sys/stat.h>
 
 
 enum call_type
@@ -88,33 +85,13 @@ struct dd_call
    } info;
 };
 
-
 static FILE *
 dd_get_file_stream(struct dd_context *dctx)
 {
    struct pipe_screen *screen = dctx->pipe->screen;
-   static unsigned index;
-   char proc_name[128], dir[256], name[512];
-   FILE *f;
-
-   if (!os_get_process_name(proc_name, sizeof(proc_name))) {
-      fprintf(stderr, "dd: can't get the process name\n");
+   FILE *f = dd_get_debug_file();
+   if (!f)
       return NULL;
-   }
-
-   snprintf(dir, sizeof(dir), "%s/"DD_DIR, debug_get_option("HOME", "."));
-
-   if (mkdir(dir, 0774) && errno != EEXIST) {
-      fprintf(stderr, "dd: can't create a directory (%i)\n", errno);
-      return NULL;
-   }
-
-   snprintf(name, sizeof(name), "%s/%s_%u_%08u", dir, proc_name, getpid(), index++);
-   f = fopen(name, "w");
-   if (!f) {
-      fprintf(stderr, "dd: can't open file %s\n", name);
-      return NULL;
-   }
 
    fprintf(f, "Driver vendor: %s\n", screen->get_vendor(screen));
    fprintf(f, "Device vendor: %s\n", screen->get_device_vendor(screen));

src/gallium/drivers/ddebug/dd_pipe.h

@@ -31,9 +31,7 @@
 #include "pipe/p_context.h"
 #include "pipe/p_state.h"
 #include "pipe/p_screen.h"
-
-/* name of the directory in home */
-#define DD_DIR "ddebug_dumps"
+#include "dd_util.h"
 
 enum dd_mode {
    DD_DETECT_HANGS,

src/gallium/drivers/ddebug/dd_util.h

@@ -0,0 +1,71 @@
+/**************************************************************************
+ *
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ * Copyright 2008 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef DD_UTIL_H
+#define DD_UTIL_H
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include "os/os_process.h"
+#include "util/u_debug.h"
+
+/* name of the directory in home */
+#define DD_DIR "ddebug_dumps"
+
+static inline FILE *
+dd_get_debug_file()
+{
+   static unsigned index;
+   char proc_name[128], dir[256], name[512];
+   FILE *f;
+
+   if (!os_get_process_name(proc_name, sizeof(proc_name))) {
+      fprintf(stderr, "dd: can't get the process name\n");
+      return NULL;
+   }
+
+   snprintf(dir, sizeof(dir), "%s/"DD_DIR, debug_get_option("HOME", "."));
+
+   if (mkdir(dir, 0774) && errno != EEXIST) {
+      fprintf(stderr, "dd: can't create a directory (%i)\n", errno);
+      return NULL;
+   }
+
+   snprintf(name, sizeof(name), "%s/%s_%u_%08u", dir, proc_name, getpid(), index++);
+   f = fopen(name, "w");
+   if (!f) {
+      fprintf(stderr, "dd: can't open file %s\n", name);
+      return NULL;
+   }
+
+   return f;
+}
+
+#endif /* DD_UTIL_H */