2004-01-17 Andrew Cagney <cagney@redhat.com>

[deliverable/binutils-gdb.git] / gdb / inftarg.c

diff --git a/gdb/inftarg.c b/gdb/inftarg.c
index 629f37d96c7c59bf49b19b0b63d3b721a78c1cdf..a20c39fd07ad36960583258fdd37da2a4648cf4e 100644 (file)
--- a/gdb/inftarg.c
+++ b/gdb/inftarg.c
@@ -36,6 +36,7 @@
 #include <fcntl.h>
 
 #include "gdb_wait.h"
+#include "inflow.h"
 
 extern struct symtab_and_line *child_enable_exception_callback (enum
                                                                exception_event_kind,
@@ -305,7 +306,6 @@ child_files_info (struct target_ops *ignore)
       attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid));
 }
 
-/* ARGSUSED */
 static void
 child_open (char *arg, int from_tty)
 {
@@ -512,8 +512,6 @@ child_can_run (void)
 static void
 child_stop (void)
 {
-  extern pid_t inferior_process_group;
-
   kill (-inferior_process_group, SIGINT);
 }
 
@@ -553,7 +551,43 @@ child_core_file_to_sym_file (char *core)
    */
   return NULL;
 }
-\f
+
+/* Perform a partial transfer to/from the specified object.  For
+   memory transfers, fall back to the old memory xfer functions.  */
+
+static LONGEST
+child_xfer_partial (struct target_ops *ops, enum target_object object,
+                   const char *annex, void *readbuf,
+                   const void *writebuf, ULONGEST offset, LONGEST len)
+{
+  switch (object)
+    {
+    case TARGET_OBJECT_MEMORY:
+      if (readbuf)
+       return child_xfer_memory (offset, readbuf, len, 0/*write*/,
+                                 NULL, ops);
+      if (writebuf)
+       return child_xfer_memory (offset, readbuf, len, 1/*write*/,
+                                 NULL, ops);
+      return -1;
+
+    case TARGET_OBJECT_UNWIND_TABLE:
+#ifndef NATIVE_XFER_UNWIND_TABLE
+#define NATIVE_XFER_UNWIND_TABLE(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
+#endif
+      return NATIVE_XFER_UNWIND_TABLE (ops, object, annex, readbuf, writebuf,
+                                      offset, len);
+
+#if 0
+    case TARGET_OBJECT_AUXV:
+      return native_xfer_auxv (PIDGET (inferior_ptid), readbuf, writebuf,
+                              offset, len);
+#endif
+
+    default:
+      return -1;
+    }
+}
 
 #if !defined(CHILD_PID_TO_STR)
 char *
@@ -580,6 +614,7 @@ init_child_ops (void)
   child_ops.to_store_registers = store_inferior_registers;
   child_ops.to_prepare_to_store = child_prepare_to_store;
   child_ops.to_xfer_memory = child_xfer_memory;
+  child_ops.to_xfer_partial = child_xfer_partial;
   child_ops.to_files_info = child_files_info;
   child_ops.to_insert_breakpoint = memory_insert_breakpoint;
   child_ops.to_remove_breakpoint = memory_remove_breakpoint;