/* Cache and manage the values of registers for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, 2001,
- 2002, 2004, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "regcache.h"
#include "reggroups.h"
#include "gdb_assert.h"
-#include "gdb_string.h"
-#include "gdbcmd.h" /* For maintenanceprintlist. */
+#include <string.h>
#include "observer.h"
#include "exceptions.h"
#include "remote.h"
+#include "valprint.h"
/*
* DATA STRUCTURE
gdb_assert (gdbarch != NULL);
descr = regcache_descr (gdbarch);
- regcache = XMALLOC (struct regcache);
+ regcache = XNEW (struct regcache);
regcache->descr = descr;
regcache->readonly_p = readonly_p;
if (readonly_p)
{
regcache->registers
- = XCALLOC (descr->sizeof_cooked_registers, gdb_byte);
+ = XCNEWVEC (gdb_byte, descr->sizeof_cooked_registers);
regcache->register_status
- = XCALLOC (descr->sizeof_cooked_register_status, gdb_byte);
+ = XCNEWVEC (signed char, descr->sizeof_cooked_register_status);
}
else
{
regcache->registers
- = XCALLOC (descr->sizeof_raw_registers, gdb_byte);
+ = XCNEWVEC (gdb_byte, descr->sizeof_raw_registers);
regcache->register_status
- = XCALLOC (descr->sizeof_raw_register_status, gdb_byte);
+ = XCNEWVEC (signed char, descr->sizeof_raw_register_status);
}
regcache->aspace = aspace;
regcache->ptid = minus_one_ptid;
}
}
-void
+static void
regcache_restore (struct regcache *dst,
regcache_cooked_read_ftype *cooked_read,
void *cooked_read_context)
{
if (gdbarch_register_reggroup_p (gdbarch, regnum, restore_reggroup))
{
- int valid = cooked_read (cooked_read_context, regnum, buf);
+ enum register_status status;
- if (valid)
+ status = cooked_read (cooked_read_context, regnum, buf);
+ if (status == REG_VALID)
regcache_cooked_write (dst, regnum, buf);
}
}
return newbuf;
}
-int
+enum register_status
regcache_register_status (const struct regcache *regcache, int regnum)
{
gdb_assert (regcache != NULL);
static struct regcache_list *current_regcache;
struct regcache *
-get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch)
+get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch,
+ struct address_space *aspace)
{
struct regcache_list *list;
struct regcache *new_regcache;
- struct address_space *aspace;
for (list = current_regcache; list; list = list->next)
if (ptid_equal (list->regcache->ptid, ptid)
&& get_regcache_arch (list->regcache) == gdbarch)
return list->regcache;
+ new_regcache = regcache_xmalloc_1 (gdbarch, aspace, 0);
+ new_regcache->ptid = ptid;
+
+ list = xmalloc (sizeof (struct regcache_list));
+ list->regcache = new_regcache;
+ list->next = current_regcache;
+ current_regcache = list;
+
+ return new_regcache;
+}
+
+struct regcache *
+get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch)
+{
+ struct address_space *aspace;
+
/* For the benefit of "maint print registers" & co when debugging an
executable, allow dumping the regcache even when there is no
thread selected (target_thread_address_space internal-errors if
? NULL
: target_thread_address_space (ptid));
- new_regcache = regcache_xmalloc_1 (gdbarch, aspace, 0);
- new_regcache->ptid = ptid;
-
- list = xmalloc (sizeof (struct regcache_list));
- list->regcache = new_regcache;
- list->next = current_regcache;
- current_regcache = list;
-
- return new_regcache;
+ return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace);
}
static ptid_t current_thread_ptid;
registers_changed_ptid (ptid_t ptid)
{
struct regcache_list *list, **list_link;
- int wildcard = ptid_equal (ptid, minus_one_ptid);
list = current_regcache;
list_link = ¤t_regcache;
list = *list_link;
}
- if (wildcard || ptid_equal (ptid, current_thread_ptid))
+ if (ptid_match (current_thread_ptid, ptid))
{
current_thread_ptid = null_ptid;
current_thread_arch = NULL;
}
- if (wildcard || ptid_equal (ptid, inferior_ptid))
+ if (ptid_match (inferior_ptid, ptid))
{
/* We just deleted the regcache of the current thread. Need to
forget about any frames we have cached, too. */
{
/* Read-only register cache, perhaps the cooked value was
cached? */
- struct gdbarch *gdbarch = regcache->descr->gdbarch;
-
if (regcache->register_status[regnum] == REG_VALID)
memcpy (buf, register_buffer (regcache, regnum),
regcache->descr->sizeof_register[regnum]);
printf_filtered (_("Register cache flushed.\n"));
}
-static void
-dump_endian_bytes (struct ui_file *file, enum bfd_endian endian,
- const unsigned char *buf, long len)
-{
- int i;
-
- switch (endian)
- {
- case BFD_ENDIAN_BIG:
- for (i = 0; i < len; i++)
- fprintf_unfiltered (file, "%02x", buf[i]);
- break;
- case BFD_ENDIAN_LITTLE:
- for (i = len - 1; i >= 0; i--)
- fprintf_unfiltered (file, "%02x", buf[i]);
- break;
- default:
- internal_error (__FILE__, __LINE__, _("Bad switch"));
- }
-}
-
enum regcache_dump_what
{
regcache_dump_none, regcache_dump_raw,
int footnote_register_offset = 0;
int footnote_register_type_name_null = 0;
long register_offset = 0;
- unsigned char buf[MAX_REGISTER_SIZE];
+ gdb_byte buf[MAX_REGISTER_SIZE];
#if 0
fprintf_unfiltered (file, "nr_raw_registers %d\n",
else
{
regcache_raw_read (regcache, regnum, buf);
- fprintf_unfiltered (file, "0x");
- dump_endian_bytes (file,
- gdbarch_byte_order (gdbarch), buf,
- regcache->descr->sizeof_register[regnum]);
+ print_hex_chars (file, buf,
+ regcache->descr->sizeof_register[regnum],
+ gdbarch_byte_order (gdbarch));
}
}
else if (status == REG_UNAVAILABLE)
fprintf_unfiltered (file, "<unavailable>");
else
- {
- fprintf_unfiltered (file, "0x");
- dump_endian_bytes (file,
- gdbarch_byte_order (gdbarch), buf,
- regcache->descr->sizeof_register[regnum]);
- }
+ print_hex_chars (file, buf,
+ regcache->descr->sizeof_register[regnum],
+ gdbarch_byte_order (gdbarch));
}
}
projects / deliverable / binutils-gdb.git / blobdiff