+2012-10-17 Yao Qi <yao@codesourcery.com>
+
+ * breakpoint.c (invalidate_bp_value_on_memory_change): Add one
+ more parameter 'inferior'.
+ * corefile.c (write_memory_with_notification): Caller update.
+
+ * mi/mi-cmd-var.c: Include "mi-main.h".
+ (mi_cmd_var_assign): Set mi_suppress_notification.data_write_memory
+ to 1 and restore it later.
+ * mi/mi-cmds.c (mi_cmd mi_cmds): Update for "data-write-memory"
+ and "data-write-memory-bytes.
+ * mi/mi-interp.c: Include objfiles.h.
+ (mi_interpreter_init): Call observer_attach_memory_changed.
+ (mi_memory_changed): New.
+ * mi/mi-main.h (struct mi_suppress_notification) <memory>:
+ New field.
+
+ * NEWS: Mention new MI notification "memory-changed".
+
2012-10-16 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2loc.c (dwarf_expr_reg_to_entry_parameter): Remove comment.
using new async records "=tsv-created" and "=tsv-deleted".
** The start and stop of process record are now notified using new
async record "=record-started" and "=record-stopped".
+ ** Memory changes are now notified using new async record
+ "=memory-changed".
*** Changes in GDB 7.5
GDB itself. */
static void
-invalidate_bp_value_on_memory_change (CORE_ADDR addr, ssize_t len,
+invalidate_bp_value_on_memory_change (struct inferior *inferior,
+ CORE_ADDR addr, ssize_t len,
const bfd_byte *data)
{
struct breakpoint *bp;
ssize_t len)
{
write_memory (memaddr, myaddr, len);
- observer_notify_memory_changed (memaddr, len, myaddr);
+ observer_notify_memory_changed (current_inferior (), memaddr, len, myaddr);
}
/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned
+2012-10-17 Yao Qi <yao@codesourcery.com>
+
+ * observer.texi (GDB Observers): Update observer
+ 'memory_changed'.
+ * gdb.texinfo (GDB/MI Async Records): Document for
+ "memory-changed" notification.
+
2012-10-15 Doug Evans <dje@google.com>
* gdb.texinfo (Mode Options): Document -nh.
the @var{param} is the whole parameter list to @code{set} command.
For example, In command @code{set check type on}, @var{param}
is @code{check type} and @var{value} is @code{on}.
+
+@item =memory-changed,thread-group=@var{id},addr=@var{addr},len=@var{len}[,type="code"]
+Reports that bytes from @var{addr} to @var{data} + @var{len} were
+written in an inferior. The @var{id} is the identifier of the
+thread group corresponding to the affected inferior. The optional
+@code{type="code"} part is reported if the memory written to holds
+executable code.
@end table
@node GDB/MI Frame Information
This method is called immediately before freeing @var{inf}.
@end deftypefun
-@deftypefun void memory_changed (CORE_ADDR @var{addr}, ssize_t @var{len}, const bfd_byte *@var{data})
+@deftypefun void memory_changed (struct inferior *@var{inferior}, CORE_ADDR @var{addr}, ssize_t @var{len}, const bfd_byte *@var{data})
Bytes from @var{data} to @var{data} + @var{len} have been written
-to the current inferior at @var{addr}.
+to the @var{inferior} at @var{addr}.
@end deftypefun
@deftypefun void before_prompt (const char *@var{current_prompt})
#include "defs.h"
#include "mi-cmds.h"
+#include "mi-main.h"
#include "ui-out.h"
#include "mi-out.h"
#include "varobj.h"
struct ui_out *uiout = current_uiout;
struct varobj *var;
char *expression, *val;
+ struct cleanup *cleanup;
if (argc != 2)
error (_("-var-assign: Usage: NAME EXPRESSION."));
expression = xstrdup (argv[1]);
+ /* MI command '-var-assign' may write memory, so suppress memory
+ changed notification if it does. */
+ cleanup
+ = make_cleanup_restore_integer (&mi_suppress_notification.memory);
+ mi_suppress_notification.memory = 1;
+
if (!varobj_set_value (var, expression))
error (_("-var-assign: Could not assign "
"expression to variable object"));
val = varobj_get_value (var);
ui_out_field_string (uiout, "value", val);
xfree (val);
+
+ do_cleanups (cleanup);
}
/* Type used for parameters passing to mi_cmd_var_update_iter. */
DEF_MI_CMD_MI ("data-list-register-values", mi_cmd_data_list_register_values),
DEF_MI_CMD_MI ("data-read-memory", mi_cmd_data_read_memory),
DEF_MI_CMD_MI ("data-read-memory-bytes", mi_cmd_data_read_memory_bytes),
- DEF_MI_CMD_MI ("data-write-memory", mi_cmd_data_write_memory),
- DEF_MI_CMD_MI ("data-write-memory-bytes", mi_cmd_data_write_memory_bytes),
+ DEF_MI_CMD_MI_1 ("data-write-memory", mi_cmd_data_write_memory,
+ &mi_suppress_notification.memory),
+ DEF_MI_CMD_MI_1 ("data-write-memory-bytes", mi_cmd_data_write_memory_bytes,
+ &mi_suppress_notification.memory),
DEF_MI_CMD_MI ("data-write-register-values",
mi_cmd_data_write_register_values),
DEF_MI_CMD_MI ("enable-timings", mi_cmd_enable_timings),
#include "gdbthread.h"
#include "solist.h"
#include "gdb.h"
+#include "objfiles.h"
/* These are the interpreter setup, etc. functions for the MI
interpreter. */
static void mi_breakpoint_deleted (struct breakpoint *b);
static void mi_breakpoint_modified (struct breakpoint *b);
static void mi_command_param_changed (const char *param, const char *value);
+static void mi_memory_changed (struct inferior *inf, CORE_ADDR memaddr,
+ ssize_t len, const bfd_byte *myaddr);
static int report_initial_inferior (struct inferior *inf, void *closure);
observer_attach_breakpoint_deleted (mi_breakpoint_deleted);
observer_attach_breakpoint_modified (mi_breakpoint_modified);
observer_attach_command_param_changed (mi_command_param_changed);
+ observer_attach_memory_changed (mi_memory_changed);
/* The initial inferior is created before this function is
called, so we need to report it explicitly. Use iteration in
gdb_flush (mi->event_channel);
}
+/* Emit notification about the target memory change. */
+
+static void
+mi_memory_changed (struct inferior *inferior, CORE_ADDR memaddr,
+ ssize_t len, const bfd_byte *myaddr)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
+ struct obj_section *sec;
+
+ if (mi_suppress_notification.memory)
+ return;
+
+ target_terminal_ours ();
+
+ fprintf_unfiltered (mi->event_channel,
+ "memory-changed");
+
+ ui_out_redirect (mi_uiout, mi->event_channel);
+
+ ui_out_field_fmt (mi_uiout, "thread-group", "i%d", inferior->num);
+ ui_out_field_core_addr (mi_uiout, "addr", target_gdbarch, memaddr);
+ ui_out_field_fmt (mi_uiout, "len", "0x%zx", len);
+
+ /* Append 'type=code' into notification if MEMADDR falls in the range of
+ sections contain code. */
+ sec = find_pc_section (memaddr);
+ if (sec != NULL && sec->objfile != NULL)
+ {
+ flagword flags = bfd_get_section_flags (sec->objfile->obfd,
+ sec->the_bfd_section);
+
+ if (flags & SEC_CODE)
+ ui_out_field_string (mi_uiout, "type", "code");
+ }
+
+ ui_out_redirect (mi_uiout, NULL);
+
+ gdb_flush (mi->event_channel);
+}
+
static int
report_initial_inferior (struct inferior *inf, void *closure)
{
int cmd_param_changed;
/* Traceframe changed notification suppressed? */
int traceframe;
+ /* Memory changed notification suppressed? */
+ int memory;
};
extern struct mi_suppress_notification mi_suppress_notification;
+2012-10-17 Yao Qi <yao@codesourcery.com>
+
+ * gdb.mi/mi-memory-changed.exp: New.
+
2012-10-16 Yao Qi <yao@codesourcery.com>
* gdb.reverse/solib-precsave.exp: Skip if skip_shlib_test
--- /dev/null
+# Copyright 2012 Free Software Foundation, Inc.
+
+# 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# 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, see <http://www.gnu.org/licenses/>.
+
+standard_testfile basics.c
+if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
+ executable {debug nowarnings}] != "" } {
+ untested mi-record-changed.exp
+ return -1
+}
+
+load_lib mi-support.exp
+
+if [mi_gdb_start] {
+ return
+}
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load ${binfile}
+
+mi_gdb_test "-break-insert -t ${srcfile}:[gdb_get_line_number "C = A + B"]" \
+ "\\^done,bkpt=\{number=\"1\".*" \
+ "insert breakpoint"
+mi_run_cmd
+mi_expect_stop "breakpoint-hit" "callee4" "" ".*" ".*" {"" "disp=\"del\""} \
+ "continue to callee4"
+
+mi_gdb_test "set var C = 4" \
+ ".*=memory-changed,thread-group=\"i${decimal}\".addr=\"${hex}\",len=\"${hex}\".*\\^done" \
+ "set var C = 4"
+
+# Write memory through MI commands shouldn't trigger MI notification.
+mi_gdb_test "-var-create var_c * C" \
+ "\\^done,name=\"var_c\",numchild=\"0\",value=\"4\",type=\"int\",thread-id=\"1\",has_more=\"0\"" \
+ "create objvar for C"
+
+mi_gdb_test "-var-assign var_c 5" \
+ "-var-assign var_c 5\r\n\\^done,value=\"5\"" \
+ "change C thru. varobj"
+
+mi_gdb_test "-data-write-memory-bytes &C \"00\"" \
+ {\^done} \
+ "change C thru. -data-write-memory-bytes"
+
+# Modify code section also triggers MI notification.
+
+# Get the instruction content of function main and its address.
+set main_addr ""
+set main_insn ""
+set test "get address of main"
+send_gdb "x/x main\n"
+gdb_expect {
+ -re ".*(${hex}) <main>:.*(${hex}).*$mi_gdb_prompt$" {
+ set main_addr $expect_out(1,string)
+ set main_insn $expect_out(2,string)
+ pass $test
+ }
+ -re ".*$mi_gdb_prompt$" {
+ fail $test
+ return
+ }
+ timeout {
+ fail "$test (timeout)"
+ return
+ }
+}
+
+mi_gdb_test "set var *(unsigned int *) ${main_addr} = ${main_insn}" \
+ ".*=memory-changed,thread-group=\"i${decimal}\".addr=\"${main_addr}\",len=\"0x4\",type=\"code\".*\\^done"
+mi_gdb_exit
+return 0
projects / external / binutils.git / commitdiff