/* Core dump and executable file functions above target vector, for GDB.
- Copyright 1986, 1987, 1989, 1991-1994, 2000
+
+ Copyright (C) 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2003, 2006
Free Software Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "gdb_string.h"
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
-#include "frame.h" /* required by inferior.h */
#include "inferior.h"
#include "symtab.h"
#include "command.h"
#include "target.h"
#include "gdbcore.h"
#include "dis-asm.h"
-#include "language.h"
#include "gdb_stat.h"
-#include "symfile.h"
-#include "objfiles.h"
+#include "completer.h"
+#include "exceptions.h"
/* Local function declarations. */
extern void _initialize_core (void);
static void call_extra_exec_file_hooks (char *filename);
-/* You can have any number of hooks for `exec_file_command' command to call.
- If there's only one hook, it is set in exec_file_display hook.
- If there are two or more hooks, they are set in exec_file_extra_hooks[],
- and exec_file_display_hook is set to a function that calls all of them.
- This extra complexity is needed to preserve compatibility with
- old code that assumed that only one hook could be set, and which called
- exec_file_display_hook directly. */
+/* You can have any number of hooks for `exec_file_command' command to
+ call. If there's only one hook, it is set in exec_file_display
+ hook. If there are two or more hooks, they are set in
+ exec_file_extra_hooks[], and deprecated_exec_file_display_hook is
+ set to a function that calls all of them. This extra complexity is
+ needed to preserve compatibility with old code that assumed that
+ only one hook could be set, and which called
+ deprecated_exec_file_display_hook directly. */
typedef void (*hook_type) (char *);
-hook_type exec_file_display_hook; /* the original hook */
+hook_type deprecated_exec_file_display_hook; /* the original hook */
static hook_type *exec_file_extra_hooks; /* array of additional hooks */
static int exec_file_hook_count = 0; /* size of array */
/* Backward compatability with old way of specifying core files. */
void
-core_file_command (filename, from_tty)
- char *filename;
- int from_tty;
+core_file_command (char *filename, int from_tty)
{
struct target_ops *t;
dont_repeat (); /* Either way, seems bogus. */
t = find_core_target ();
- if (t != NULL)
- if (!filename)
- (t->to_detach) (filename, from_tty);
- else
- {
- /* Yes, we were given the path of a core file. Do we already
- have a symbol file? If not, can we determine it from the
- core file? If we can, do so.
- */
-#ifdef HPUXHPPA
- if (symfile_objfile == NULL)
- {
- char *symfile;
- symfile = t->to_core_file_to_sym_file (filename);
- if (symfile)
- {
- char *symfile_copy = xstrdup (symfile);
-
- make_cleanup (free, symfile_copy);
- symbol_file_command (symfile_copy, from_tty);
- }
- else
- warning ("Unknown symbols for '%s'; use the 'symbol-file' command.", filename);
- }
-#endif
- (t->to_open) (filename, from_tty);
- }
+ if (t == NULL)
+ error (_("GDB can't read core files on this machine."));
+
+ if (!filename)
+ (t->to_detach) (filename, from_tty);
else
- error ("GDB can't read core files on this machine.");
+ (t->to_open) (filename, from_tty);
}
\f
-/* If there are two or more functions that wish to hook into exec_file_command,
- * this function will call all of the hook functions. */
+/* If there are two or more functions that wish to hook into
+ exec_file_command, this function will call all of the hook
+ functions. */
static void
-call_extra_exec_file_hooks (filename)
- char *filename;
+call_extra_exec_file_hooks (char *filename)
{
int i;
This is called from the x-window display code. */
void
-specify_exec_file_hook (hook)
- void (*hook) (char *);
+specify_exec_file_hook (void (*hook) (char *))
{
hook_type *new_array;
- if (exec_file_display_hook != NULL)
+ if (deprecated_exec_file_display_hook != NULL)
{
/* There's already a hook installed. Arrange to have both it
* and the subsequent hooks called. */
if (exec_file_hook_count == 0)
{
- /* If this is the first extra hook, initialize the hook array. */
+ /* If this is the first extra hook, initialize the hook array. */
exec_file_extra_hooks = (hook_type *) xmalloc (sizeof (hook_type));
- exec_file_extra_hooks[0] = exec_file_display_hook;
- exec_file_display_hook = call_extra_exec_file_hooks;
+ exec_file_extra_hooks[0] = deprecated_exec_file_display_hook;
+ deprecated_exec_file_display_hook = call_extra_exec_file_hooks;
exec_file_hook_count = 1;
}
exec_file_extra_hooks[exec_file_hook_count - 1] = hook;
}
else
- exec_file_display_hook = hook;
+ deprecated_exec_file_display_hook = hook;
}
/* The exec file must be closed before running an inferior.
be reopened. */
void
-close_exec_file ()
+close_exec_file (void)
{
#if 0 /* FIXME */
if (exec_bfd)
}
void
-reopen_exec_file ()
+reopen_exec_file (void)
{
#if 0 /* FIXME */
if (exec_bfd)
/* If the timestamp of the exec file has changed, reopen it. */
filename = xstrdup (bfd_get_filename (exec_bfd));
- make_cleanup (free, filename);
+ make_cleanup (xfree, filename);
mtime = bfd_get_mtime (exec_bfd);
res = stat (filename, &st);
if (mtime && mtime != st.st_mtime)
- exec_file_command (filename, 0);
+ {
+ exec_open (filename, 0);
+ }
#endif
}
\f
print a warning if they don't go together. */
void
-validate_files ()
+validate_files (void)
{
if (exec_bfd && core_bfd)
{
if (!core_file_matches_executable_p (core_bfd, exec_bfd))
- warning ("core file may not match specified executable file.");
+ warning (_("core file may not match specified executable file."));
else if (bfd_get_mtime (exec_bfd) > bfd_get_mtime (core_bfd))
- warning ("exec file is newer than core file.");
+ warning (_("exec file is newer than core file."));
}
}
otherwise return 0 in that case. */
char *
-get_exec_file (err)
- int err;
+get_exec_file (int err)
{
if (exec_bfd)
return bfd_get_filename (exec_bfd);
if (!err)
return NULL;
- error ("No executable file specified.\n\
-Use the \"file\" or \"exec-file\" command.");
+ error (_("No executable file specified.\n\
+Use the \"file\" or \"exec-file\" command."));
return NULL;
}
\f
/* Report a memory error with error(). */
void
-memory_error (status, memaddr)
- int status;
- CORE_ADDR memaddr;
+memory_error (int status, CORE_ADDR memaddr)
{
struct ui_file *tmp_stream = mem_fileopen ();
make_cleanup_ui_file_delete (tmp_stream);
/* Actually, address between memaddr and memaddr + len
was out of bounds. */
fprintf_unfiltered (tmp_stream, "Cannot access memory at address ");
- print_address_numeric (memaddr, 1, tmp_stream);
+ deprecated_print_address_numeric (memaddr, 1, tmp_stream);
}
else
{
fprintf_filtered (tmp_stream, "Error accessing memory address ");
- print_address_numeric (memaddr, 1, tmp_stream);
+ deprecated_print_address_numeric (memaddr, 1, tmp_stream);
fprintf_filtered (tmp_stream, ": %s.",
safe_strerror (status));
}
/* Same as target_read_memory, but report an error if can't read. */
void
-read_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
{
int status;
status = target_read_memory (memaddr, myaddr, len);
memory_error (status, memaddr);
}
-/* Like target_read_memory, but slightly different parameters. */
-int
-dis_asm_read_memory (memaddr, myaddr, len, info)
- bfd_vma memaddr;
- bfd_byte *myaddr;
- unsigned int len;
- disassemble_info *info;
-{
- return target_read_memory (memaddr, (char *) myaddr, len);
-}
+/* Argument / return result struct for use with
+ do_captured_read_memory_integer(). MEMADDR and LEN are filled in
+ by gdb_read_memory_integer(). RESULT is the contents that were
+ successfully read from MEMADDR of length LEN. */
-/* Like memory_error with slightly different parameters. */
-void
-dis_asm_memory_error (status, memaddr, info)
- int status;
- bfd_vma memaddr;
- disassemble_info *info;
+struct captured_read_memory_integer_arguments
{
- memory_error (status, memaddr);
-}
-
-/* Like print_address with slightly different parameters. */
-void
-dis_asm_print_address (addr, info)
- bfd_vma addr;
- struct disassemble_info *info;
+ CORE_ADDR memaddr;
+ int len;
+ LONGEST result;
+};
+
+/* Helper function for gdb_read_memory_integer(). DATA must be a
+ pointer to a captured_read_memory_integer_arguments struct.
+ Return 1 if successful. Note that the catch_errors() interface
+ will return 0 if an error occurred while reading memory. This
+ choice of return code is so that we can distinguish between
+ success and failure. */
+
+static int
+do_captured_read_memory_integer (void *data)
{
- print_address (addr, info->stream);
+ struct captured_read_memory_integer_arguments *args = (struct captured_read_memory_integer_arguments*) data;
+ CORE_ADDR memaddr = args->memaddr;
+ int len = args->len;
+
+ args->result = read_memory_integer (memaddr, len);
+
+ return 1;
}
-/* Same as target_write_memory, but report an error if can't write. */
-void
-write_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+/* Read memory at MEMADDR of length LEN and put the contents in
+ RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero
+ if successful. */
+
+int
+safe_read_memory_integer (CORE_ADDR memaddr, int len, LONGEST *return_value)
{
int status;
+ struct captured_read_memory_integer_arguments args;
+ args.memaddr = memaddr;
+ args.len = len;
- status = target_write_memory (memaddr, myaddr, len);
- if (status != 0)
- memory_error (status, memaddr);
-}
+ status = catch_errors (do_captured_read_memory_integer, &args,
+ "", RETURN_MASK_ALL);
+ if (status)
+ *return_value = args.result;
-/* Read an integer from debugged memory, given address and number of bytes. */
+ return status;
+}
LONGEST
-read_memory_integer (memaddr, len)
- CORE_ADDR memaddr;
- int len;
+read_memory_integer (CORE_ADDR memaddr, int len)
{
- char buf[sizeof (LONGEST)];
+ gdb_byte buf[sizeof (LONGEST)];
read_memory (memaddr, buf, len);
return extract_signed_integer (buf, len);
}
ULONGEST
-read_memory_unsigned_integer (memaddr, len)
- CORE_ADDR memaddr;
- int len;
+read_memory_unsigned_integer (CORE_ADDR memaddr, int len)
{
- char buf[sizeof (ULONGEST)];
+ gdb_byte buf[sizeof (ULONGEST)];
read_memory (memaddr, buf, len);
return extract_unsigned_integer (buf, len);
}
void
-read_memory_string (memaddr, buffer, max_len)
- CORE_ADDR memaddr;
- char *buffer;
- int max_len;
+read_memory_string (CORE_ADDR memaddr, char *buffer, int max_len)
{
- register char *cp;
- register int i;
+ char *cp;
+ int i;
int cnt;
cp = buffer;
break;
}
}
+
+CORE_ADDR
+read_memory_typed_address (CORE_ADDR addr, struct type *type)
+{
+ gdb_byte *buf = alloca (TYPE_LENGTH (type));
+ read_memory (addr, buf, TYPE_LENGTH (type));
+ return extract_typed_address (buf, type);
+}
+
+/* Same as target_write_memory, but report an error if can't write. */
+void
+write_memory (CORE_ADDR memaddr, const bfd_byte *myaddr, int len)
+{
+ int status;
+ gdb_byte *bytes = alloca (len);
+
+ memcpy (bytes, myaddr, len);
+ status = target_write_memory (memaddr, bytes, len);
+ if (status != 0)
+ memory_error (status, memaddr);
+}
+
+/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
+void
+write_memory_unsigned_integer (CORE_ADDR addr, int len, ULONGEST value)
+{
+ gdb_byte *buf = alloca (len);
+ store_unsigned_integer (buf, len, value);
+ write_memory (addr, buf, len);
+}
+
+/* Store VALUE at ADDR in the inferior as a LEN-byte signed integer. */
+void
+write_memory_signed_integer (CORE_ADDR addr, int len, LONGEST value)
+{
+ gdb_byte *buf = alloca (len);
+ store_signed_integer (buf, len, value);
+ write_memory (addr, buf, len);
+}
+
\f
#if 0
if the protocol has a less general search function, they can call this
in the cases it can't handle. */
void
-generic_search (len, data, mask, startaddr, increment, lorange, hirange
- addr_found, data_found)
- int len;
- char *data;
- char *mask;
- CORE_ADDR startaddr;
- int increment;
- CORE_ADDR lorange;
- CORE_ADDR hirange;
- CORE_ADDR *addr_found;
- char *data_found;
+generic_search (int len, char *data, char *mask, CORE_ADDR startaddr,
+ int increment, CORE_ADDR lorange, CORE_ADDR hirange,
+ CORE_ADDR *addr_found, char *data_found)
{
int i;
CORE_ADDR curaddr = startaddr;
/* Same thing, except it is "auto" not NULL for the default case. */
static char *gnutarget_string;
+static void
+show_gnutarget_string (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("The current BFD target is \"%s\".\n"), value);
+}
static void set_gnutarget_command (char *, int, struct cmd_list_element *);
static void
-set_gnutarget_command (ignore, from_tty, c)
- char *ignore;
- int from_tty;
- struct cmd_list_element *c;
+set_gnutarget_command (char *ignore, int from_tty, struct cmd_list_element *c)
{
- if (STREQ (gnutarget_string, "auto"))
+ if (strcmp (gnutarget_string, "auto") == 0)
gnutarget = NULL;
else
gnutarget = gnutarget_string;
/* Set the gnutarget. */
void
-set_gnutarget (newtarget)
- char *newtarget;
+set_gnutarget (char *newtarget)
{
if (gnutarget_string != NULL)
- free (gnutarget_string);
+ xfree (gnutarget_string);
gnutarget_string = savestring (newtarget, strlen (newtarget));
set_gnutarget_command (NULL, 0, NULL);
}
void
-_initialize_core ()
+_initialize_core (void)
{
struct cmd_list_element *c;
- c = add_cmd ("core-file", class_files, core_file_command,
- "Use FILE as core dump for examining memory and registers.\n\
+ c = add_cmd ("core-file", class_files, core_file_command, _("\
+Use FILE as core dump for examining memory and registers.\n\
No arg means have no core file. This command has been superseded by the\n\
-`target core' and `detach' commands.", &cmdlist);
- c->completer = filename_completer;
-
- c = add_set_cmd ("gnutarget", class_files, var_string_noescape,
- (char *) &gnutarget_string,
- "Set the current BFD target.\n\
-Use `set gnutarget auto' to specify automatic detection.",
- &setlist);
- c->function.sfunc = set_gnutarget_command;
- add_show_from_set (c, &showlist);
+`target core' and `detach' commands."), &cmdlist);
+ set_cmd_completer (c, filename_completer);
+
+
+ add_setshow_string_noescape_cmd ("gnutarget", class_files,
+ &gnutarget_string, _("(\
+Set the current BFD target."), _("\
+Show the current BFD target."), _("\
+Use `set gnutarget auto' to specify automatic detection."),
+ set_gnutarget_command,
+ show_gnutarget_string,
+ &setlist, &showlist);
if (getenv ("GNUTARGET"))
set_gnutarget (getenv ("GNUTARGET"));
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