gcc/ada/argv-lynxos178-raven-cert.c

   1 /****************************************************************************
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   3  *                         GNAT COMPILER COMPONENTS                         *
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   7  *                          C Implementation File                           *
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  27  * GNAT was originally developed  by the GNAT team at  New York University. *
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  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
  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
  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