/* Select target systems and architectures at runtime for GDB.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
Contributed by Cygnus Support.
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 <errno.h>
static void default_terminal_info (char *, int);
+static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int);
+
static int default_region_size_ok_for_hw_watchpoint (int);
static int nosymbol (char *, CORE_ADDR *);
static LONGEST default_xfer_partial (struct target_ops *ops,
enum target_object object,
- const char *annex, void *readbuf,
- const void *writebuf,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
ULONGEST offset, LONGEST len);
/* Transfer LEN bytes between target address MEMADDR and GDB address
partial transfers, try either target_read_memory_partial or
target_write_memory_partial). */
-static int target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
+static int target_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
int write);
static void init_dummy_target (void);
static void debug_to_prepare_to_store (void);
-static int deprecated_debug_xfer_memory (CORE_ADDR, char *, int, int,
- struct mem_attrib *,
- struct target_ops *);
-
static void debug_to_files_info (struct target_ops *);
-static int debug_to_insert_breakpoint (CORE_ADDR, char *);
+static int debug_to_insert_breakpoint (CORE_ADDR, gdb_byte *);
-static int debug_to_remove_breakpoint (CORE_ADDR, char *);
+static int debug_to_remove_breakpoint (CORE_ADDR, gdb_byte *);
static int debug_to_can_use_hw_breakpoint (int, int, int);
-static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *);
+static int debug_to_insert_hw_breakpoint (CORE_ADDR, gdb_byte *);
-static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *);
+static int debug_to_remove_hw_breakpoint (CORE_ADDR, gdb_byte *);
static int debug_to_insert_watchpoint (CORE_ADDR, int, int);
static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *);
+static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int);
+
static int debug_to_region_size_ok_for_hw_watchpoint (int);
static void debug_to_terminal_init (void);
/* Non-zero if we want to see trace of target level stuff. */
static int targetdebug = 0;
+static void
+show_targetdebug (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Target debugging is %s.\n"), value);
+}
static void setup_target_debug (void);
INHERIT (to_stopped_data_address, t);
INHERIT (to_stopped_by_watchpoint, t);
INHERIT (to_have_continuable_watchpoint, t);
+ INHERIT (to_region_ok_for_hw_watchpoint, t);
INHERIT (to_region_size_ok_for_hw_watchpoint, t);
INHERIT (to_terminal_init, t);
INHERIT (to_terminal_inferior, t);
INHERIT (to_remove_fork_catchpoint, t);
INHERIT (to_insert_vfork_catchpoint, t);
INHERIT (to_remove_vfork_catchpoint, t);
- INHERIT (to_follow_fork, t);
+ /* Do not inherit to_follow_fork. */
INHERIT (to_insert_exec_catchpoint, t);
INHERIT (to_remove_exec_catchpoint, t);
INHERIT (to_reported_exec_events_per_exec_call, t);
(void (*) (void))
noprocess);
de_fault (deprecated_xfer_memory,
- (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *))
+ (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *))
nomemory);
de_fault (to_files_info,
(void (*) (struct target_ops *))
(int (*) (int, int, int))
return_zero);
de_fault (to_insert_hw_breakpoint,
- (int (*) (CORE_ADDR, char *))
+ (int (*) (CORE_ADDR, gdb_byte *))
return_minus_one);
de_fault (to_remove_hw_breakpoint,
- (int (*) (CORE_ADDR, char *))
+ (int (*) (CORE_ADDR, gdb_byte *))
return_minus_one);
de_fault (to_insert_watchpoint,
(int (*) (CORE_ADDR, int, int))
de_fault (to_stopped_data_address,
(int (*) (struct target_ops *, CORE_ADDR *))
return_zero);
+ de_fault (to_region_ok_for_hw_watchpoint,
+ default_region_ok_for_hw_watchpoint);
de_fault (to_region_size_ok_for_hw_watchpoint,
default_region_size_ok_for_hw_watchpoint);
de_fault (to_terminal_init,
de_fault (to_remove_vfork_catchpoint,
(int (*) (int))
tcomplain);
- de_fault (to_follow_fork,
- (int (*) (int))
- target_ignore);
de_fault (to_insert_exec_catchpoint,
(void (*) (int))
tcomplain);
target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
{
int tlen, origlen, offset, i;
- char buf[4];
+ gdb_byte buf[4];
int errcode = 0;
char *buffer;
int buffer_allocated;
tlen = MIN (len, 4 - (memaddr & 3));
offset = memaddr & 3;
- errcode = target_read_memory (memaddr & ~3, buf, 4);
+ errcode = target_read_memory (memaddr & ~3, buf, sizeof buf);
if (errcode != 0)
{
/* The transfer request might have crossed the boundary to an
return 0;
offset += xfered;
if (readbuf != NULL)
- readbuf = (bfd_byte *) readbuf + xfered;
+ readbuf = (gdb_byte *) readbuf + xfered;
if (writebuf != NULL)
- writebuf = (bfd_byte *) writebuf + xfered;
+ writebuf = (gdb_byte *) writebuf + xfered;
target = target_stack;
}
else if (xfered < 0)
deal with partial reads should call target_read_memory_partial. */
int
-target_read_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len)
+target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
{
if (target_xfer_partial_p ())
return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL,
}
int
-target_write_memory (CORE_ADDR memaddr, const bfd_byte *myaddr, int len)
+target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len)
{
- bfd_byte *bytes = alloca (len);
+ gdb_byte *bytes = alloca (len);
memcpy (bytes, myaddr, len);
if (target_xfer_partial_p ())
return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL,
#endif
static int trust_readonly = 0;
+static void
+show_trust_readonly (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("\
+Mode for reading from readonly sections is %s.\n"),
+ value);
+}
/* Move memory to or from the targets. The top target gets priority;
if it cannot handle it, it is offered to the next one down, etc.
Result is -1 on error, or the number of bytes transfered. */
int
-do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+do_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write,
struct mem_attrib *attrib)
{
int res;
Result is 0 or errno value. */
static int
-target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
+target_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write)
{
int res;
int reg_len;
{
if (region->attrib.cache)
res = dcache_xfer_memory (target_dcache, memaddr, myaddr,
- reg_len, write);
+ reg_len, write);
else
res = do_xfer_memory (memaddr, myaddr, reg_len, write,
®ion->attrib);
/* Perform a partial memory transfer.
- Result is -1 on error, or the number of bytes transfered. */
+ If we succeed, set *ERR to zero and return the number of bytes transferred.
+ If we fail, set *ERR to a non-zero errno value, and return -1. */
static int
-target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len,
+target_xfer_memory_partial (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
int write_p, int *err)
{
int res;
}
int
-target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+target_read_memory_partial (CORE_ADDR memaddr, gdb_byte *buf,
+ int len, int *err)
{
if (target_xfer_partial_p ())
- return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL,
- buf, NULL, memaddr, len);
+ {
+ int retval;
+
+ retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY,
+ NULL, buf, NULL, memaddr, len);
+
+ if (retval <= 0)
+ {
+ if (errno)
+ *err = errno;
+ else
+ *err = EIO;
+ return -1;
+ }
+ else
+ {
+ *err = 0;
+ return retval;
+ }
+ }
else
return target_xfer_memory_partial (memaddr, buf, len, 0, err);
}
int
-target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+target_write_memory_partial (CORE_ADDR memaddr, gdb_byte *buf,
+ int len, int *err)
{
if (target_xfer_partial_p ())
- return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL,
- NULL, buf, memaddr, len);
+ {
+ int retval;
+
+ retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY,
+ NULL, NULL, buf, memaddr, len);
+
+ if (retval <= 0)
+ {
+ if (errno)
+ *err = errno;
+ else
+ *err = EIO;
+ return -1;
+ }
+ else
+ {
+ *err = 0;
+ return retval;
+ }
+ }
else
return target_xfer_memory_partial (memaddr, buf, len, 1, err);
}
static LONGEST
default_xfer_partial (struct target_ops *ops, enum target_object object,
- const char *annex, void *readbuf,
- const void *writebuf, ULONGEST offset, LONGEST len)
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
{
if (object == TARGET_OBJECT_MEMORY
&& ops->deprecated_xfer_memory != NULL)
LONGEST
target_read_partial (struct target_ops *ops,
enum target_object object,
- const char *annex, void *buf,
+ const char *annex, gdb_byte *buf,
ULONGEST offset, LONGEST len)
{
return target_xfer_partial (ops, object, annex, buf, NULL, offset, len);
LONGEST
target_write_partial (struct target_ops *ops,
enum target_object object,
- const char *annex, const void *buf,
+ const char *annex, const gdb_byte *buf,
ULONGEST offset, LONGEST len)
{
return target_xfer_partial (ops, object, annex, NULL, buf, offset, len);
LONGEST
target_read (struct target_ops *ops,
enum target_object object,
- const char *annex, void *buf,
+ const char *annex, gdb_byte *buf,
ULONGEST offset, LONGEST len)
{
LONGEST xfered = 0;
while (xfered < len)
{
LONGEST xfer = target_read_partial (ops, object, annex,
- (bfd_byte *) buf + xfered,
+ (gdb_byte *) buf + xfered,
offset + xfered, len - xfered);
/* Call an observer, notifying them of the xfer progress? */
if (xfer <= 0)
LONGEST
target_write (struct target_ops *ops,
enum target_object object,
- const char *annex, const void *buf,
+ const char *annex, const gdb_byte *buf,
ULONGEST offset, LONGEST len)
{
LONGEST xfered = 0;
while (xfered < len)
{
LONGEST xfer = target_write_partial (ops, object, annex,
- (bfd_byte *) buf + xfered,
+ (gdb_byte *) buf + xfered,
offset + xfered, len - xfered);
/* Call an observer, notifying them of the xfer progress? */
if (xfer <= 0)
/* Memory transfer methods. */
void
-get_target_memory (struct target_ops *ops, CORE_ADDR addr, void *buf,
+get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf,
LONGEST len)
{
if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len)
get_target_memory_unsigned (struct target_ops *ops,
CORE_ADDR addr, int len)
{
- char buf[sizeof (ULONGEST)];
+ gdb_byte buf[sizeof (ULONGEST)];
gdb_assert (len <= sizeof (buf));
get_target_memory (ops, addr, buf, len);
(current_target.to_disconnect) (args, from_tty);
}
-void
-target_link (char *modname, CORE_ADDR *t_reloc)
-{
- if (DEPRECATED_STREQ (current_target.to_shortname, "rombug"))
- {
- (current_target.to_lookup_symbol) (modname, t_reloc);
- if (*t_reloc == 0)
- error (_("Unable to link to %s and get relocation in rombug"), modname);
- }
- else
- *t_reloc = (CORE_ADDR) -1;
-}
-
int
target_async_mask (int mask)
{
return saved_async_masked_status;
}
+/* Look through the list of possible targets for a target that can
+ follow forks. */
+
+int
+target_follow_fork (int follow_child)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_follow_fork != NULL)
+ {
+ int retval = t->to_follow_fork (t, follow_child);
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
+ follow_child, retval);
+ return retval;
+ }
+ }
+
+ /* Some target returned a fork event, but did not know how to follow it. */
+ internal_error (__FILE__, __LINE__,
+ "could not find a target to follow fork");
+}
+
/* Look through the list of possible targets for a target that can
execute a run or attach command without any other data. This is
used to locate the default process stratum.
return;
}
+static int
+default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
+{
+ return TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (len);
+}
+
static int
default_region_size_ok_for_hw_watchpoint (int byte_count)
{
int (*target_activity_function) (void);
int target_activity_fd;
\f
-/* Convert a normal process ID to a string. Returns the string in a static
- buffer. */
+/* Convert a normal process ID to a string. Returns the string in a
+ static buffer. */
char *
normal_pid_to_str (ptid_t ptid)
{
- static char buf[30];
+ static char buf[32];
- sprintf (buf, "process %d", PIDGET (ptid));
+ xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid));
return buf;
}
}
static int
-deprecated_debug_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
+deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len,
int write, struct mem_attrib *attrib,
struct target_ops *target)
{
}
static int
-debug_to_insert_breakpoint (CORE_ADDR addr, char *save)
+debug_to_insert_breakpoint (CORE_ADDR addr, gdb_byte *save)
{
int retval;
}
static int
-debug_to_remove_breakpoint (CORE_ADDR addr, char *save)
+debug_to_remove_breakpoint (CORE_ADDR addr, gdb_byte *save)
{
int retval;
return retval;
}
+static int
+debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
+{
+ CORE_ADDR retval;
+
+ retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n",
+ (unsigned long) addr,
+ (unsigned long) len,
+ (unsigned long) retval);
+ return retval;
+}
+
static int
debug_to_region_size_ok_for_hw_watchpoint (int byte_count)
{
}
static int
-debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save)
+debug_to_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *save)
{
int retval;
}
static int
-debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save)
+debug_to_remove_hw_breakpoint (CORE_ADDR addr, gdb_byte *save)
{
int retval;
return retval;
}
-static int
-debug_to_follow_fork (int follow_child)
-{
- int retval = debug_target.to_follow_fork (follow_child);
-
- fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
- follow_child, retval);
-
- return retval;
-}
-
static void
debug_to_insert_exec_catchpoint (int pid)
{
current_target.to_remove_watchpoint = debug_to_remove_watchpoint;
current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint;
current_target.to_stopped_data_address = debug_to_stopped_data_address;
+ current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint;
current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint;
current_target.to_terminal_init = debug_to_terminal_init;
current_target.to_terminal_inferior = debug_to_terminal_inferior;
current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint;
current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint;
current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint;
- current_target.to_follow_fork = debug_to_follow_fork;
current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint;
current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint;
current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call;
add_info ("target", target_info, targ_desc);
add_info ("files", target_info, targ_desc);
- deprecated_add_show_from_set
- (add_set_cmd ("target", class_maintenance, var_zinteger,
- (char *) &targetdebug,
- "Set target debugging.\n\
+ add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\
+Set target debugging."), _("\
+Show target debugging."), _("\
When non-zero, target debugging is enabled. Higher numbers are more\n\
verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
-command.", &setdebuglist),
- &showdebuglist);
+command."),
+ NULL,
+ show_targetdebug,
+ &setdebuglist, &showdebuglist);
add_setshow_boolean_cmd ("trust-readonly-sections", class_support,
&trust_readonly, _("\
will be read from the object file instead of from the target. This will\n\
result in significant performance improvement for remote targets."),
NULL,
- NULL, /* FIXME: i18n: Mode for reading from readonly sections is %s. */
+ show_trust_readonly,
&setlist, &showlist);
add_com ("monitor", class_obscure, do_monitor_command,
projects / deliverable / binutils-gdb.git / blobdiff