1 /****************************************************************************
2 * *
3 * GNAT COMPILER COMPONENTS *
4 * *
5 * A R G V *
6 * *
7 * C Implementation File *
8 * *
9 * Copyright (C) 1992-2019, Free Software Foundation, Inc. *
10 * *
11 * GNAT is free software; you can redistribute it and/or modify it under *
12 * terms of the GNU General Public License as published by the Free Soft- *
13 * ware Foundation; either version 3, or (at your option) any later ver- *
14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
16 * or FITNESS FOR A PARTICULAR PURPOSE. *
17 * *
18 * As a special exception under Section 7 of GPL version 3, you are granted *
19 * additional permissions described in the GCC Runtime Library Exception, *
20 * version 3.1, as published by the Free Software Foundation. *
21 * *
22 * You should have received a copy of the GNU General Public License and *
23 * a copy of the GCC Runtime Library Exception along with this program; *
24 * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
25 * <http://www.gnu.org/licenses/>. *
26 * *
27 * GNAT was originally developed by the GNAT team at New York University. *
28 * Extensive contributions were provided by Ada Core Technologies Inc. *
29 * *
30 ****************************************************************************/
31
32 /* Routines for accessing command line arguments from both the runtime
33 library and from the compiler itself. In the former case, gnat_argc
34 and gnat_argv are the original argc and argv values as stored by the
35 binder generated main program, and these routines are accessed from
36 the Ada.Command_Line package. In the compiler case, gnat_argc and
37 gnat_argv are the values as modified by toplev, and these routines
38 are accessed from the Osint package. */
39
40 /* This version is for the ravenscar-cert runtime in LynxOS-178, with
41 minimal support for Ada.Command_Line.Command_Name */
42
43 #include <sys/types.h>
44 #include <string.h>
45
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
49
50 /* argc and argv of the main program are saved under gnat_argc and gnat_argv,
51 envp of the main program is saved under gnat_envp.
52 While gnat_argc and gnat_envp are not needed, they are referenced from
53 the binder-generated file so they need to be defined here */
54
55 int gnat_argc = 0;
56 const char **gnat_argv = (const char **) 0;
57 const char **gnat_envp = (const char **) 0;
58
59 int
__gnat_len_arg(int arg_num)60 __gnat_len_arg (int arg_num)
61 {
62 if (gnat_argv != NULL)
63 return strlen (gnat_argv[arg_num]);
64 else
65 return 0;
66 }
67
68 void
__gnat_fill_arg(char * a,int i)69 __gnat_fill_arg (char *a, int i)
70 {
71 if (gnat_argv != NULL)
72 strncpy (a, gnat_argv[i], strlen(gnat_argv[i]));
73 }
74
75 #ifdef __cplusplus
76 }
77 #endif
78