/* Core dump and executable file functions above target vector, for GDB.
- Copyright 1986, 1987, 1989, 1991-1994, 2000
- Free Software Foundation, Inc.
+
+ Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
This file is part of GDB.
#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"
/* Local function declarations. */
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);
- }
- else
+ if (t == NULL)
error ("GDB can't read core files on this machine.");
+
+ if (!filename)
+ (t->to_detach) (filename, from_tty);
+ else
+ (t->to_open) (filename, from_tty);
}
\f
/* 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_address (addr, info->stream);
}
-/* Same as target_write_memory, but report an error if can't write. */
-void
-write_memory (CORE_ADDR memaddr, char *myaddr, int 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. */
+
+struct captured_read_memory_integer_arguments
{
- int status;
+ 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)
+{
+ struct captured_read_memory_integer_arguments *args = (struct captured_read_memory_integer_arguments*) data;
+ CORE_ADDR memaddr = args->memaddr;
+ int len = args->len;
- status = target_write_memory (memaddr, myaddr, len);
- if (status != 0)
- memory_error (status, memaddr);
+ args->result = read_memory_integer (memaddr, len);
+
+ return 1;
}
-/* Read an integer from debugged memory, given address and number of bytes. */
+/* 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 = catch_errors (do_captured_read_memory_integer, &args,
+ "", RETURN_MASK_ALL);
+ if (status)
+ *return_value = args.result;
+
+ return status;
+}
LONGEST
read_memory_integer (CORE_ADDR memaddr, int len)
break;
}
}
+
+CORE_ADDR
+read_memory_typed_address (CORE_ADDR addr, struct type *type)
+{
+ char *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, char *myaddr, int len)
+{
+ int status;
+
+ status = target_write_memory (memaddr, myaddr, 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)
+{
+ char *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)
+{
+ char *buf = alloca (len);
+ store_signed_integer (buf, len, value);
+ write_memory (addr, buf, len);
+}
+
\f
#if 0
static void
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_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);
}
"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;
+ set_cmd_completer (c, 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;
+ set_cmd_sfunc (c, set_gnutarget_command);
add_show_from_set (c, &showlist);
if (getenv ("GNUTARGET"))
projects / binutils.git / blobdiff