/* 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"
procfs_xfer_auxv (struct target_ops *ops,
int /* enum target_object */ object,
const char *annex,
- void *readbuf,
- const void *writebuf,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf,
ULONGEST offset,
LONGEST len)
{
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, char **data)
-{
- size_t auxv_alloc = 512, auxv_pos = 0;
- char *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, char **readptr, char *endptr,
- CORE_ADDR *typep, CORE_ADDR *valp)
+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);
- char *ptr = *readptr;
+ const int sizeof_auxv_field = gdbarch_ptr_bit (target_gdbarch)
+ / TARGET_CHAR_BIT;
+ gdb_byte *ptr = *readptr;
if (endptr == ptr)
return 0;
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
target_auxv_search (struct target_ops *ops, CORE_ADDR match, CORE_ADDR *valp)
{
CORE_ADDR type, val;
- char *data;
- int n = target_auxv_read (ops, &data);
- char *ptr = data;
+ gdb_byte *data;
+ LONGEST n = target_read_alloc (ops, TARGET_OBJECT_AUXV, NULL, &data);
+ gdb_byte *ptr = data;
int ents = 0;
if (n <= 0)
fprint_target_auxv (struct ui_file *file, struct target_ops *ops)
{
CORE_ADDR type, val;
- char *data;
- int len = target_auxv_read (ops, &data);
- char *ptr = data;
+ gdb_byte *data;
+ LONGEST len = target_read_alloc (ops, TARGET_OBJECT_AUXV, NULL,
+ &data);
+ gdb_byte *ptr = data;
int ents = 0;
if (len <= 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;
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_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));
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);
projects / deliverable / binutils-gdb.git / blobdiff