/* Auxiliary vector support for GDB, the GNU debugger.
- Copyright 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "target.h"
return n;
}
-/* Read all the auxv data into a contiguous xmalloc'd buffer,
- stored in *DATA. Return the size in bytes of this data.
- If zero, there is no data and *DATA is null.
- if < 0, there was an error and *DATA is null. */
-LONGEST
-target_auxv_read (struct target_ops *ops, gdb_byte **data)
-{
- size_t auxv_alloc = 512, auxv_pos = 0;
- gdb_byte *auxv = xmalloc (auxv_alloc);
- int n;
-
- while (1)
- {
- n = target_read_partial (ops, TARGET_OBJECT_AUXV,
- NULL, &auxv[auxv_pos], 0,
- auxv_alloc - auxv_pos);
- if (n <= 0)
- break;
- auxv_pos += n;
- if (auxv_pos < auxv_alloc) /* Read all there was. */
- break;
- gdb_assert (auxv_pos == auxv_alloc);
- auxv_alloc *= 2;
- auxv = xrealloc (auxv, auxv_alloc);
- }
-
- if (auxv_pos == 0)
- {
- xfree (auxv);
- *data = NULL;
- return n;
- }
-
- *data = auxv;
- return auxv_pos;
-}
-
/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
Return 0 if *READPTR is already at the end of the buffer.
Return -1 if there is insufficient buffer for a whole entry.
Return 1 if an entry was read into *TYPEP and *VALP. */
int
-target_auxv_parse (struct target_ops *ops, gdb_byte **readptr,
+default_auxv_parse (struct target_ops *ops, gdb_byte **readptr,
gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
{
- const int sizeof_auxv_field = TYPE_LENGTH (builtin_type_void_data_ptr);
+ const int sizeof_auxv_field = gdbarch_ptr_bit (target_gdbarch)
+ / TARGET_CHAR_BIT;
gdb_byte *ptr = *readptr;
if (endptr == ptr)
return 1;
}
+/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
+ Return 0 if *READPTR is already at the end of the buffer.
+ Return -1 if there is insufficient buffer for a whole entry.
+ Return 1 if an entry was read into *TYPEP and *VALP. */
+int
+target_auxv_parse (struct target_ops *ops, gdb_byte **readptr,
+ gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
+{
+ struct target_ops *t;
+ for (t = ops; t != NULL; t = t->beneath)
+ if (t->to_auxv_parse != NULL)
+ return t->to_auxv_parse (t, readptr, endptr, typep, valp);
+
+ return default_auxv_parse (ops, readptr, endptr, typep, valp);
+}
+
/* Extract the auxiliary vector entry with a_type matching MATCH.
Return zero if no such entry was found, or -1 if there was
an error getting the information. On success, return 1 after
{
CORE_ADDR type, val;
gdb_byte *data;
- int n = target_auxv_read (ops, &data);
+ LONGEST n = target_read_alloc (ops, TARGET_OBJECT_AUXV, NULL, &data);
gdb_byte *ptr = data;
int ents = 0;
{
CORE_ADDR type, val;
gdb_byte *data;
- int len = target_auxv_read (ops, &data);
+ LONGEST len = target_read_alloc (ops, TARGET_OBJECT_AUXV, NULL,
+ &data);
gdb_byte *ptr = data;
int ents = 0;
while (target_auxv_parse (ops, &ptr, data + len, &type, &val) > 0)
{
- extern int addressprint;
const char *name = "???";
const char *description = "";
enum { dec, hex, str } flavor = hex;
_("Canonicalized file name given to execve"), str);
TAG (AT_SUN_MMU, _("String for name of MMU module"), str);
TAG (AT_SUN_LDDATA, _("Dynamic linker's data segment address"), hex);
+ TAG (AT_SUN_AUXFLAGS,
+ _("AF_SUN_ flags passed from the kernel"), hex);
}
fprintf_filtered (file, "%-4s %-20s %-30s ",
- paddr_d (type), name, description);
+ plongest (type), name, description);
switch (flavor)
{
case dec:
- fprintf_filtered (file, "%s\n", paddr_d (val));
+ fprintf_filtered (file, "%s\n", plongest (val));
break;
case hex:
fprintf_filtered (file, "0x%s\n", paddr_nz (val));
break;
case str:
- if (addressprint)
- fprintf_filtered (file, "0x%s", paddr_nz (val));
- val_print_string (val, -1, 1, file);
- fprintf_filtered (file, "\n");
+ {
+ struct value_print_options opts;
+ get_user_print_options (&opts);
+ if (opts.addressprint)
+ fprintf_filtered (file, "0x%s", paddr_nz (val));
+ val_print_string (val, -1, 1, file, &opts);
+ fprintf_filtered (file, "\n");
+ }
break;
}
++ents;
+ if (type == AT_NULL)
+ break;
}
xfree (data);