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[deliverable/binutils-gdb.git] / sim / common / syscall.c

diff --git a/sim/common/syscall.c b/sim/common/syscall.c
index fcfb4176809a040edaec63d19d03da00bfe79c96..10d58aa7e27e77a549ad92aa98cb83d1539e42b2 100644 (file)
--- a/sim/common/syscall.c
+++ b/sim/common/syscall.c
@@ -1,12 +1,12 @@
 /* Remote target system call support.
-   Copyright 1997, 1998, 2002, 2004 Free Software Foundation, Inc.
+   Copyright 1997-2014 Free Software Foundation, Inc.
    Contributed by Cygnus Solutions.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,8 +15,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GAS; see the file COPYING.  If not, write to the Free Software
-   Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* This interface isn't intended to be specific to any particular kind
    of remote (hardware, simulator, whatever).  As such, support for it
@@ -29,11 +28,7 @@
 #endif
 #include "ansidecl.h"
 #include "libiberty.h"
-#ifdef ANSI_PROTOTYPES
 #include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
 #include <stdio.h>
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>
@@ -80,8 +75,8 @@ char *simulator_sysroot = "";
 /* Utility of cb_syscall to fetch a path name or other string from the target.
    The result is 0 for success or a host errno value.  */
 
-static int
-get_string (cb, sc, buf, buflen, addr)
+int
+cb_get_string (cb, sc, buf, buflen, addr)
      host_callback *cb;
      CB_SYSCALL *sc;
      char *buf;
@@ -97,7 +92,7 @@ get_string (cb, sc, buf, buflen, addr)
         path name along with the syscall request, and cache the file
         name somewhere (or otherwise tweak this as desired).  */
       unsigned int count = (*sc->read_mem) (cb, sc, addr, p, 1);
-                                   
+
       if (count != 1)
        return EINVAL;
       if (*p == 0)
@@ -125,7 +120,7 @@ get_path (cb, sc, addr, bufp)
   int result;
   int sysroot_len = strlen (simulator_sysroot);
 
-  result = get_string (cb, sc, buf, MAX_PATH_LEN - sysroot_len, addr);
+  result = cb_get_string (cb, sc, buf, MAX_PATH_LEN - sysroot_len, addr);
   if (result == 0)
     {
       /* Prepend absolute paths with simulator_sysroot.  Relative paths
@@ -296,7 +291,7 @@ cb_syscall (cb, sc)
 
        while (count > 0)
          {
-           if (fd == 0)
+           if (cb_is_stdin (cb, fd))
              result = (int) (*cb->read_stdin) (cb, buf,
                                                (count < FILE_XFR_SIZE
                                                 ? count : FILE_XFR_SIZE));
@@ -349,12 +344,12 @@ cb_syscall (cb, sc)
                errcode = EINVAL;
                goto FinishSyscall;
              }
-           if (fd == 1)
+           if (cb_is_stdout (cb, fd))
              {
                result = (int) (*cb->write_stdout) (cb, buf, bytes_read);
                (*cb->flush_stdout) (cb);
              }
-           else if (fd == 2)
+           else if (cb_is_stderr (cb, fd))
              {
                result = (int) (*cb->write_stderr) (cb, buf, bytes_read);
                (*cb->flush_stderr) (cb);
@@ -572,6 +567,33 @@ cb_syscall (cb, sc)
       }
       break;
 
+    case CB_SYS_pipe :
+      {
+       int p[2];
+       char *target_p = xcalloc (1, cb->target_sizeof_int * 2);
+
+       result = (*cb->pipe) (cb, p);
+       if (result != 0)
+         goto ErrorFinish;
+
+       cb_store_target_endian (cb, target_p, cb->target_sizeof_int, p[0]);
+       cb_store_target_endian (cb, target_p + cb->target_sizeof_int,
+                               cb->target_sizeof_int, p[1]);
+       if ((*sc->write_mem) (cb, sc, sc->arg1, target_p,
+                             cb->target_sizeof_int * 2)
+           != cb->target_sizeof_int * 2)
+         {
+           /* Close the pipe fd:s.  */
+           (*cb->close) (cb, p[0]);
+           (*cb->close) (cb, p[1]);
+           errcode = EFAULT;
+           result = -1;
+         }
+
+       free (target_p);
+      }
+      break;
+
     case CB_SYS_time :
       {
        /* FIXME: May wish to change CB_SYS_time to something else.