* linux-low.c (usr_store_inferior_registers): Transfer buf in

PTRACE_XFER_TYPE-sized chunks, not int-sized chunks.  Otherwise,
if 'int' is smaller than PTRACE_XFER_TYPE, you end up throwing
away part of the register's value.

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 9df8a2a..7e998d0 100644 (file)
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,10 @@
+2003-05-29  Jim Blandy  <jimb@redhat.com>
+
+       * linux-low.c (usr_store_inferior_registers): Transfer buf in
+       PTRACE_XFER_TYPE-sized chunks, not int-sized chunks.  Otherwise,
+       if 'int' is smaller than PTRACE_XFER_TYPE, you end up throwing
+       away part of the register's value.
+
 2003-04-24  Andrew Cagney  <cagney@redhat.com>
 
        * low-nbsd.c (fetch_inferior_registers): 

diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 95bf969..aad2ecd 100644 (file)
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -976,7 +976,7 @@ usr_store_inferior_registers (int regno)
        {
          errno = 0;
          ptrace (PTRACE_POKEUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
-                 *(int *) (buf + i));
+                 *(PTRACE_XFER_TYPE *) (buf + i));
          if (errno != 0)
            {
              if ((*the_low_target.cannot_store_register) (regno) == 0)
@@ -989,7 +989,7 @@ usr_store_inferior_registers (int regno)
                  return;
                }
            }
-         regaddr += sizeof (int);
+         regaddr += sizeof (PTRACE_XFER_TYPE);
        }
     }
   else