/* Auxiliary vector support for GDB, the GNU debugger.
- Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009
+ 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "target.h"
#include <fcntl.h>
-/* This function is called like a to_xfer_partial hook,
- but must be called with TARGET_OBJECT_AUXV.
- It handles access via /proc/PID/auxv, which is the common method.
- This function is appropriate for doing:
- #define NATIVE_XFER_AUXV procfs_xfer_auxv
- for a native target that uses inftarg.c's child_xfer_partial hook. */
+/* This function is called like a to_xfer_partial hook, but must be
+ called with TARGET_OBJECT_AUXV. It handles access via
+ /proc/PID/auxv, which is a common method for native targets. */
LONGEST
procfs_xfer_auxv (struct target_ops *ops,
- int /* enum target_object */ object,
+ enum target_object object,
const char *annex,
gdb_byte *readbuf,
const gdb_byte *writebuf,
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,
+static int
+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;
+ const enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
gdb_byte *ptr = *readptr;
if (endptr == ptr)
if (endptr - ptr < sizeof_auxv_field * 2)
return -1;
- *typep = extract_unsigned_integer (ptr, sizeof_auxv_field);
+ *typep = extract_unsigned_integer (ptr, sizeof_auxv_field, byte_order);
ptr += sizeof_auxv_field;
- *valp = extract_unsigned_integer (ptr, sizeof_auxv_field);
+ *valp = extract_unsigned_integer (ptr, sizeof_auxv_field, byte_order);
ptr += sizeof_auxv_field;
*readptr = 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
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;
TAG (AT_ICACHEBSIZE, _("Instruction cache block size"), dec);
TAG (AT_UCACHEBSIZE, _("Unified cache block size"), dec);
TAG (AT_IGNOREPPC, _("Entry should be ignored"), dec);
+ TAG (AT_BASE_PLATFORM, _("String identifying base platform"), str);
+ TAG (AT_RANDOM, _("Address of 16 random bytes"), hex);
+ TAG (AT_EXECFN, _("File name of executable"), str);
+ TAG (AT_SECURE, _("Boolean, was exec setuid-like?"), dec);
TAG (AT_SYSINFO, _("Special system info/entry points"), hex);
TAG (AT_SYSINFO_EHDR, _("System-supplied DSO's ELF header"), hex);
- TAG (AT_SECURE, _("Boolean, was exec setuid-like?"), dec);
TAG (AT_SUN_UID, _("Effective user ID"), dec);
TAG (AT_SUN_RUID, _("Real user ID"), dec);
TAG (AT_SUN_GID, _("Effective group ID"), dec);
_("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));
+ fprintf_filtered (file, "%s\n", paddress (target_gdbarch, 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, "%s", paddress (target_gdbarch, val));
+ val_print_string (builtin_type (target_gdbarch)->builtin_char,
+ val, -1, file, &opts);
+ fprintf_filtered (file, "\n");
+ }
break;
}
++ents;
+ if (type == AT_NULL)
+ break;
}
xfree (data);