1 files changed, 134 insertions, 0 deletions

diff --git a/userspace/src/args.c b/userspace/src/args.c
new file mode 100644
index 00000000..d91c6f6e
--- /dev/null
+++ b/userspace/src/args.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2018, NVIDIA CORPORATION.  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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include <stdio.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <unit/core.h>
+#include <unit/args.h>
+#include <unit/io.h>
+
+static struct option core_opts[] = {
+        { "help",               0, NULL, 'h' },
+        { "verbose",            0, NULL, 'v' },
+        { "quiet",              0, NULL, 'q' },
+        { "no-color",           0, NULL, 'C' },
+
+        { "unit-load-path",     1, NULL, 'L' },
+
+        { NULL,                 0, NULL,  0  }
+};
+
+static const char *core_opts_str = "hvqCL:";
+
+void core_print_help(struct unit_fw *fw)
+{
+        const char **line, *help_msg[] = {
+"NvGpu Unit Testing FW. Basic usage\n",
+"\n",
+"  $ nvgpu_unit [options] <unit>\n",
+"\n",
+"Basic usage consists of one or more options and a particular unit test to\n",
+"execute.\n",
+"\n",
+"Available options are as follows:\n",
+"\n",
+"  -h, --help             Print this help message and exit.\n",
+"  -v, --verbose          Increment the verbosity level. Can be specified\n",
+"                         multiple times.\n",
+"  -q, --quiet            Set the verbose level back to 0.\n",
+"  -C, --no-color         Disable color printing; for example, if writing\n",
+"                         output to a file the color escape sequences will\n",
+"                         corrupt that file.\n",
+"  -L, --unit-load-path <PATH>\n",
+"                         Path to where the unit test libraries reside.\n",
+"\n",
+"Note: mandatory arguments to long arguments are mandatory for short\n",
+"arguments as well.\n",
+NULL
+        };
+
+        line = help_msg;
+        while (*line != NULL) {
+                core_msg(fw, "%s", *line);
+                line++;
+        }
+}
+
+static void set_arg_defaults(struct unit_fw_args *args)
+{
+        args->unit_load_path = DEFAULT_ARG_UNIT_LOAD_PATH;
+}
+
+/*
+ * Parse command line arguments.
+ */
+int core_parse_args(struct unit_fw *fw, int argc, char **argv)
+{
+        int c, opt_index;
+        struct unit_fw_args *args;
+
+        args = malloc(sizeof(*args));
+        if (!args)
+                return -1;
+
+        memset(args, 0, sizeof(*args));
+        set_arg_defaults(args);
+
+        fw->args = args;
+
+        while (1) {
+                c = getopt_long(argc, argv,
+                                core_opts_str, core_opts, &opt_index);
+
+                if (c == -1)
+                        break;
+
+                switch (c) {
+                case 'h':
+                        args->help = true;
+                        break;
+                case 'v':
+                        args->verbose_lvl += 1;
+                        break;
+                case 'q':
+                        args->verbose_lvl = 0;
+                        break;
+                case 'C':
+                        args->no_color = true;
+                        break;
+                case 'L':
+                        args->unit_load_path = optarg;
+                        break;
+                case '?':
+                        args->help = true;
+                        return -1;
+                default:
+                        core_err(fw, "bug?!\n");
+                        return -1;
+                }
+        }
+
+        return 0;
+}