common/filestuff.c (make_cleanup_close): Update comment.

[deliverable/binutils-gdb.git] / gdb / regcache.c

diff --git a/gdb/regcache.c b/gdb/regcache.c
index 05b8fb9f98b0cc5b337b9ecec0ab21a3db42462d..41c7aca17523716db4cf2692ddf27fe033600f1a 100644 (file)
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -1,6 +1,6 @@
 /* Cache and manage the values of registers for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2014 Free Software Foundation, Inc.
+   Copyright (C) 1986-2015 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -25,7 +25,6 @@
 #include "regcache.h"
 #include "reggroups.h"
 #include "observer.h"
-#include "exceptions.h"
 #include "remote.h"
 #include "valprint.h"
 #include "regset.h"
@@ -148,7 +147,8 @@ init_regcache_descr (struct gdbarch *gdbarch)
 static struct regcache_descr *
 regcache_descr (struct gdbarch *gdbarch)
 {
-  return gdbarch_data (gdbarch, regcache_descr_handle);
+  return (struct regcache_descr *) gdbarch_data (gdbarch,
+                                                regcache_descr_handle);
 }
 
 /* Utility functions returning useful register attributes stored in
@@ -257,7 +257,7 @@ regcache_xfree (struct regcache *regcache)
 static void
 do_regcache_xfree (void *data)
 {
-  regcache_xfree (data);
+  regcache_xfree ((struct regcache *) data);
 }
 
 struct cleanup *
@@ -277,7 +277,7 @@ struct register_to_invalidate
 static void
 do_regcache_invalidate (void *data)
 {
-  struct register_to_invalidate *reg = data;
+  struct register_to_invalidate *reg = (struct register_to_invalidate *) data;
 
   regcache_invalidate (reg->regcache, reg->regnum);
 }
@@ -387,11 +387,14 @@ regcache_restore (struct regcache *dst,
 static enum register_status
 do_cooked_read (void *src, int regnum, gdb_byte *buf)
 {
-  struct regcache *regcache = src;
+  struct regcache *regcache = (struct regcache *) src;
 
   return regcache_cooked_read (regcache, regnum, buf);
 }
 
+static void regcache_cpy_no_passthrough (struct regcache *dst,
+                                        struct regcache *src);
+
 void
 regcache_cpy (struct regcache *dst, struct regcache *src)
 {
@@ -408,7 +411,12 @@ regcache_cpy (struct regcache *dst, struct regcache *src)
     regcache_cpy_no_passthrough (dst, src);
 }
 
-void
+/* Copy/duplicate the contents of a register cache.  Unlike regcache_cpy,
+   which is pass-through, this does not go through to the target.
+   Only values values already in the cache are transferred.  The SRC and DST
+   buffers must not overlap.  */
+
+static void
 regcache_cpy_no_passthrough (struct regcache *dst, struct regcache *src)
 {
   gdb_assert (src != NULL && dst != NULL);
@@ -445,7 +453,7 @@ regcache_register_status (const struct regcache *regcache, int regnum)
   else
     gdb_assert (regnum < regcache->descr->nr_raw_registers);
 
-  return regcache->register_status[regnum];
+  return (enum register_status) regcache->register_status[regnum];
 }
 
 void
@@ -489,7 +497,7 @@ get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch,
   new_regcache = regcache_xmalloc_1 (gdbarch, aspace, 0);
   new_regcache->ptid = ptid;
 
-  list = xmalloc (sizeof (struct regcache_list));
+  list = XNEW (struct regcache_list);
   list->regcache = new_regcache;
   list->next = current_regcache;
   current_regcache = list;
@@ -536,6 +544,13 @@ get_current_regcache (void)
   return get_thread_regcache (inferior_ptid);
 }
 
+/* See common/common-regcache.h.  */
+
+struct regcache *
+get_thread_regcache_for_ptid (ptid_t ptid)
+{
+  return get_thread_regcache (ptid);
+}
 
 /* Observer for the target_changed event.  */
 
@@ -650,7 +665,7 @@ regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf)
     memcpy (buf, register_buffer (regcache, regnum),
            regcache->descr->sizeof_register[regnum]);
 
-  return regcache->register_status[regnum];
+  return (enum register_status) regcache->register_status[regnum];
 }
 
 enum register_status
@@ -661,7 +676,7 @@ regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val)
 
   gdb_assert (regcache != NULL);
   gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
-  buf = alloca (regcache->descr->sizeof_register[regnum]);
+  buf = (gdb_byte *) alloca (regcache->descr->sizeof_register[regnum]);
   status = regcache_raw_read (regcache, regnum, buf);
   if (status == REG_VALID)
     *val = extract_signed_integer
@@ -681,7 +696,7 @@ regcache_raw_read_unsigned (struct regcache *regcache, int regnum,
 
   gdb_assert (regcache != NULL);
   gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
-  buf = alloca (regcache->descr->sizeof_register[regnum]);
+  buf = (gdb_byte *) alloca (regcache->descr->sizeof_register[regnum]);
   status = regcache_raw_read (regcache, regnum, buf);
   if (status == REG_VALID)
     *val = extract_unsigned_integer
@@ -737,7 +752,7 @@ regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf)
       else
        memset (buf, 0, regcache->descr->sizeof_register[regnum]);
 
-      return regcache->register_status[regnum];
+      return (enum register_status) regcache->register_status[regnum];
     }
   else if (gdbarch_pseudo_register_read_value_p (regcache->descr->gdbarch))
     {
@@ -808,7 +823,7 @@ regcache_cooked_read_signed (struct regcache *regcache, int regnum,
 
   gdb_assert (regcache != NULL);
   gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_cooked_registers);
-  buf = alloca (regcache->descr->sizeof_register[regnum]);
+  buf = (gdb_byte *) alloca (regcache->descr->sizeof_register[regnum]);
   status = regcache_cooked_read (regcache, regnum, buf);
   if (status == REG_VALID)
     *val = extract_signed_integer
@@ -828,7 +843,7 @@ regcache_cooked_read_unsigned (struct regcache *regcache, int regnum,
 
   gdb_assert (regcache != NULL);
   gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_cooked_registers);
-  buf = alloca (regcache->descr->sizeof_register[regnum]);
+  buf = (gdb_byte *) alloca (regcache->descr->sizeof_register[regnum]);
   status = regcache_cooked_read (regcache, regnum, buf);
   if (status == REG_VALID)
     *val = extract_unsigned_integer
@@ -1081,7 +1096,9 @@ regcache_transfer_regset (const struct regset *regset,
   const struct regcache_map_entry *map;
   int offs = 0, count;
 
-  for (map = regset->regmap; (count = map->count) != 0; map++)
+  for (map = (const struct regcache_map_entry *) regset->regmap;
+       (count = map->count) != 0;
+       map++)
     {
       int regno = map->regno;
       int slot_size = map->size;
@@ -1336,7 +1353,7 @@ regcache_dump (struct regcache *regcache, struct ui_file *file,
                t = n;
              }
            /* Chop a leading builtin_type.  */
-           if (strncmp (t, blt, strlen (blt)) == 0)
+           if (startswith (t, blt))
              t += strlen (blt);
          }
        fprintf_unfiltered (file, " %-15s", t);