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* linux-low.c (regsets_store_inferior_registers): Read the regset

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from the target before filling it.
This commit is contained in:
Daniel Jacobowitz 2006-02-15 14:36:32 +00:00
parent e0ae6d6fe9
commit 545587ee60
2 changed files with 22 additions and 3 deletions
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5
gdb/gdbserver/ChangeLog
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@ -1,3 +1,8 @@
2006-02-15 Daniel Jacobowitz <dan@codesourcery.com>
* linux-low.c (regsets_store_inferior_registers): Read the regset
from the target before filling it.
2006-02-08 Daniel Jacobowitz <dan@codesourcery.com> 2006-02-08 Daniel Jacobowitz <dan@codesourcery.com>
* server.c (attach_inferior): Return SIGTRAP for a successful * server.c (attach_inferior): Return SIGTRAP for a successful

20
gdb/gdbserver/linux-low.c
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@ -1,5 +1,6 @@
/* Low level interface to ptrace, for the remote server for GDB. /* Low level interface to ptrace, for the remote server for GDB.
Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006
Free Software Foundation, Inc. Free Software Foundation, Inc.
This file is part of GDB. This file is part of GDB.
@ -1286,8 +1287,21 @@ regsets_store_inferior_registers ()
} }
buf = malloc (regset->size); buf = malloc (regset->size);
regset->fill_function (buf);
res = ptrace (regset->set_request, inferior_pid, 0, buf); /* First fill the buffer with the current register set contents,
in case there are any items in the kernel's regset that are
not in gdbserver's regcache. */
res = ptrace (regset->get_request, inferior_pid, 0, buf);
if (res == 0)
{
/* Then overlay our cached registers on that. */
regset->fill_function (buf);
/* Only now do we write the register set. */
res = ptrace (regset->set_request, inferior_pid, 0, buf);
}
if (res < 0) if (res < 0)
{ {
if (errno == EIO) if (errno == EIO)