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2008-04-17 Daniel Jacobowitz <dan@codesourcery.com> 

* linux-low.c (disabled_regsets, num_regsets): New.
	(use_regsets_p): Delete.
	(linux_wait_for_process): Clear disabled_regsets.
	(regsets_fetch_inferior_registers): Check and set it.
	(regsets_store_inferior_registers): Likewise.
	(linux_fetch_registers, linux_store_registers): Do not use
	use_regsets_p.
	(initialize_low): Allocate disabled_regsets.
This commit is contained in:
Ulrich Weigand 2008-04-17 21:21:38 +00:00
parent 475bbd17e0
commit 52fa2412d2
2 changed files with 35 additions and 37 deletions
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11
gdb/gdbserver/ChangeLog
View File

@ -1,3 +1,14 @@
2008-04-17 Daniel Jacobowitz <dan@codesourcery.com>
* linux-low.c (disabled_regsets, num_regsets): New.
(use_regsets_p): Delete.
(linux_wait_for_process): Clear disabled_regsets.
(regsets_fetch_inferior_registers): Check and set it.
(regsets_store_inferior_registers): Likewise.
(linux_fetch_registers, linux_store_registers): Do not use
use_regsets_p.
(initialize_low): Allocate disabled_regsets.
2008-04-14 Daniel Jacobowitz <dan@codesourcery.com>
* Makefile.in (LIBOBJS): New.

61
gdb/gdbserver/linux-low.c
View File

@ -131,7 +131,8 @@ struct pending_signals
#define PTRACE_XFER_TYPE long
#ifdef HAVE_LINUX_REGSETS
static int use_regsets_p = 1;
static char *disabled_regsets;
static int num_regsets;
#endif
#define pid_of(proc) ((proc)->head.id)
@ -631,6 +632,9 @@ retry:
if (new_inferior)
{
the_low_target.arch_setup ();
#ifdef HAVE_LINUX_REGSETS
memset (disabled_regsets, 0, num_regsets);
#endif
new_inferior = 0;
}
@ -1496,7 +1500,7 @@ regsets_fetch_inferior_registers ()
void *buf;
int res;
if (regset->size == 0)
if (regset->size == 0 || disabled_regsets[regset - target_regsets])
{
regset ++;
continue;
@ -1508,18 +1512,10 @@ regsets_fetch_inferior_registers ()
{
if (errno == EIO)
{
/* If we get EIO on the first regset, do not try regsets again.
If we get EIO on a later regset, disable that regset. */
if (regset == target_regsets)
{
use_regsets_p = 0;
return -1;
}
else
{
regset->size = 0;
continue;
}
/* If we get EIO on a regset, do not try it again for
this process. */
disabled_regsets[regset - target_regsets] = 1;
continue;
}
else
{
@ -1553,7 +1549,7 @@ regsets_store_inferior_registers ()
void *buf;
int res;
if (regset->size == 0)
if (regset->size == 0 || disabled_regsets[regset - target_regsets])
{
regset ++;
continue;
@ -1579,18 +1575,10 @@ regsets_store_inferior_registers ()
{
if (errno == EIO)
{
/* If we get EIO on the first regset, do not try regsets again.
If we get EIO on a later regset, disable that regset. */
if (regset == target_regsets)
{
use_regsets_p = 0;
return -1;
}
else
{
regset->size = 0;
continue;
}
/* If we get EIO on a regset, do not try it again for
this process. */
disabled_regsets[regset - target_regsets] = 1;
continue;
}
else
{
@ -1616,11 +1604,8 @@ void
linux_fetch_registers (int regno)
{
#ifdef HAVE_LINUX_REGSETS
if (use_regsets_p)
{
if (regsets_fetch_inferior_registers () == 0)
return;
}
if (regsets_fetch_inferior_registers () == 0)
return;
#endif
#ifdef HAVE_LINUX_USRREGS
usr_fetch_inferior_registers (regno);
@ -1631,11 +1616,8 @@ void
linux_store_registers (int regno)
{
#ifdef HAVE_LINUX_REGSETS
if (use_regsets_p)
{
if (regsets_store_inferior_registers () == 0)
return;
}
if (regsets_store_inferior_registers () == 0)
return;
#endif
#ifdef HAVE_LINUX_USRREGS
usr_store_inferior_registers (regno);
@ -2084,4 +2066,9 @@ initialize_low (void)
the_low_target.breakpoint_len);
linux_init_signals ();
linux_test_for_tracefork ();
#ifdef HAVE_LINUX_REGSETS
for (num_regsets = 0; target_regsets[num_regsets].size >= 0; num_regsets++)
;
disabled_regsets = malloc (num_regsets);
#endif
}