mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-07-04 22:35:36 +02:00
(x86_access_reg): Add a debug statement so accesses to bad register numbers
can be seen with debugging enabled. (Logical change 1.81)
This commit is contained in:
parent
c91cfd2f5d
commit
63a539999d
|
@ -0,0 +1,57 @@
|
||||||
|
/* libunwind - a platform-independent unwind library
|
||||||
|
Copyright (C) 2002 Hewlett-Packard Co
|
||||||
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
||||||
|
|
||||||
|
This file is part of libunwind.
|
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining
|
||||||
|
a copy of this software and associated documentation files (the
|
||||||
|
"Software"), to deal in the Software without restriction, including
|
||||||
|
without limitation the rights to use, copy, modify, merge, publish,
|
||||||
|
distribute, sublicense, and/or sell copies of the Software, and to
|
||||||
|
permit persons to whom the Software is furnished to do so, subject to
|
||||||
|
the following conditions:
|
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be
|
||||||
|
included in all copies or substantial portions of the Software.
|
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||||
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||||
|
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||||
|
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||||
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||||||
|
|
||||||
|
#include "unwind_i.h"
|
||||||
|
|
||||||
|
HIDDEN int
|
||||||
|
x86_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp,
|
||||||
|
int write)
|
||||||
|
{
|
||||||
|
struct x86_loc loc = X86_LOC (0, 0);
|
||||||
|
|
||||||
|
switch (reg)
|
||||||
|
{
|
||||||
|
case UNW_X86_EIP:
|
||||||
|
if (write)
|
||||||
|
c->eip = *valp; /* also update the EIP cache */
|
||||||
|
loc = c->eip_loc;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case UNW_X86_ESP:
|
||||||
|
if (write)
|
||||||
|
return -UNW_EREADONLYREG;
|
||||||
|
*valp = c->esp;
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
default:
|
||||||
|
debug (1, "%s: bad register number %u\n", __FUNCTION__, reg);
|
||||||
|
return -UNW_EBADREG;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (write)
|
||||||
|
return x86_put (c, loc, *valp);
|
||||||
|
else
|
||||||
|
return x86_get (c, loc, valp);
|
||||||
|
}
|
Loading…
Reference in a new issue