MI: consider addressable unit size when reading/writing memory
As a user of the target memory read/write interface, the MI code must adjust its memory allocations to take into account the addressable memory unitsize of the target. gdb/ChangeLog: mi/mi-main.c (mi_cmd_data_read_memory_bytes): Consider byte size. (mi_cmd_data_write_memory_bytes): Same.
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@ -1,3 +1,9 @@
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2015-06-15 Simon Marchi <simon.marchi@ericsson.com>
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* mi/mi-main.c (mi_cmd_data_read_memory_bytes): Consider addressable
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memory unit size.
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(mi_cmd_data_write_memory_bytes): Same.
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2015-06-15 Simon Marchi <simon.marchi@ericsson.com>
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2015-06-15 Simon Marchi <simon.marchi@ericsson.com>
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* corefile.c (write_memory): Update doc.
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* corefile.c (write_memory): Update doc.
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@ -1595,6 +1595,7 @@ mi_cmd_data_read_memory_bytes (char *command, char **argv, int argc)
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int ix;
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int ix;
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VEC(memory_read_result_s) *result;
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VEC(memory_read_result_s) *result;
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long offset = 0;
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long offset = 0;
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int unit_size = gdbarch_addressable_memory_unit_size (gdbarch);
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int oind = 0;
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int oind = 0;
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char *oarg;
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char *oarg;
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enum opt
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enum opt
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@ -1650,10 +1651,11 @@ mi_cmd_data_read_memory_bytes (char *command, char **argv, int argc)
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- addr);
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- addr);
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ui_out_field_core_addr (uiout, "end", gdbarch, read_result->end);
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ui_out_field_core_addr (uiout, "end", gdbarch, read_result->end);
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data = xmalloc ((read_result->end - read_result->begin) * 2 + 1);
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data = xmalloc (
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(read_result->end - read_result->begin) * 2 * unit_size + 1);
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for (i = 0, p = data;
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for (i = 0, p = data;
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i < (read_result->end - read_result->begin);
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i < ((read_result->end - read_result->begin) * unit_size);
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++i, p += 2)
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++i, p += 2)
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{
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{
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sprintf (p, "%02x", read_result->data[i]);
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sprintf (p, "%02x", read_result->data[i]);
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@ -1762,29 +1764,36 @@ mi_cmd_data_write_memory_bytes (char *command, char **argv, int argc)
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char *cdata;
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char *cdata;
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gdb_byte *data;
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gdb_byte *data;
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gdb_byte *databuf;
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gdb_byte *databuf;
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size_t len, i, steps, remainder;
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size_t len_hex, len_bytes, len_units, i, steps, remaining_units;
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long int count, j;
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long int count_units;
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struct cleanup *back_to;
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struct cleanup *back_to;
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int unit_size;
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if (argc != 2 && argc != 3)
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if (argc != 2 && argc != 3)
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error (_("Usage: ADDR DATA [COUNT]."));
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error (_("Usage: ADDR DATA [COUNT]."));
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addr = parse_and_eval_address (argv[0]);
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addr = parse_and_eval_address (argv[0]);
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cdata = argv[1];
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cdata = argv[1];
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if (strlen (cdata) % 2)
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len_hex = strlen (cdata);
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error (_("Hex-encoded '%s' must have an even number of characters."),
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unit_size = gdbarch_addressable_memory_unit_size (get_current_arch ());
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if (len_hex % (unit_size * 2) != 0)
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error (_("Hex-encoded '%s' must represent an integral number of "
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"addressable memory units."),
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cdata);
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cdata);
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len = strlen (cdata)/2;
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len_bytes = len_hex / 2;
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if (argc == 3)
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len_units = len_bytes / unit_size;
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count = strtoul (argv[2], NULL, 10);
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else
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count = len;
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databuf = xmalloc (len * sizeof (gdb_byte));
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if (argc == 3)
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count_units = strtoul (argv[2], NULL, 10);
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else
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count_units = len_units;
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databuf = xmalloc (len_bytes * sizeof (gdb_byte));
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back_to = make_cleanup (xfree, databuf);
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back_to = make_cleanup (xfree, databuf);
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for (i = 0; i < len; ++i)
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for (i = 0; i < len_bytes; ++i)
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{
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{
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int x;
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int x;
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if (sscanf (cdata + i * 2, "%02x", &x) != 1)
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if (sscanf (cdata + i * 2, "%02x", &x) != 1)
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@ -1792,29 +1801,32 @@ mi_cmd_data_write_memory_bytes (char *command, char **argv, int argc)
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databuf[i] = (gdb_byte) x;
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databuf[i] = (gdb_byte) x;
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}
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}
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if (len < count)
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if (len_units < count_units)
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{
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{
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/* Pattern is made of less bytes than count:
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/* Pattern is made of less units than count:
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repeat pattern to fill memory. */
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repeat pattern to fill memory. */
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data = xmalloc (count);
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data = xmalloc (count_units * unit_size);
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make_cleanup (xfree, data);
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make_cleanup (xfree, data);
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steps = count / len;
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/* Number of times the pattern is entirely repeated. */
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remainder = count % len;
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steps = count_units / len_units;
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for (j = 0; j < steps; j++)
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/* Number of remaining addressable memory units. */
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memcpy (data + j * len, databuf, len);
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remaining_units = count_units % len_units;
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for (i = 0; i < steps; i++)
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memcpy (data + i * len_bytes, databuf, len_bytes);
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if (remainder > 0)
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if (remaining_units > 0)
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memcpy (data + steps * len, databuf, remainder);
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memcpy (data + steps * len_bytes, databuf,
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remaining_units * unit_size);
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}
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}
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else
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else
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{
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{
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/* Pattern is longer than or equal to count:
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/* Pattern is longer than or equal to count:
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just copy count bytes. */
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just copy count addressable memory units. */
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data = databuf;
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data = databuf;
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}
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}
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write_memory_with_notification (addr, data, count);
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write_memory_with_notification (addr, data, count_units);
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do_cleanups (back_to);
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do_cleanups (back_to);
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}
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}
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