diff options
Diffstat (limited to 'gdb/remote.c')
| -rw-r--r-- | gdb/remote.c | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/gdb/remote.c b/gdb/remote.c index 3f7d07b831d..24deaa09da7 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -3127,7 +3127,15 @@ remote_resume (ptid_t ptid, int step, enum target_signal siggnal) set_thread (pid, 0); /* Run this thread. */ buf = rs->buf; - if (siggnal != TARGET_SIGNAL_0) + if (target_get_execution_direction () == EXEC_REVERSE) + { + /* We don't pass signals to the target in reverse exec mode. */ + if (info_verbose && siggnal != TARGET_SIGNAL_0) + warning (" - Can't pass signal %d to target in reverse: ignored.\n", + siggnal); + strcpy (buf, step ? "bs" : "bc"); + } + else if (siggnal != TARGET_SIGNAL_0) { buf[0] = step ? 'S' : 'C'; buf[1] = tohex (((int) siggnal >> 4) & 0xf); @@ -3402,8 +3410,15 @@ remote_wait (ptid_t ptid, struct target_waitstatus *status) /* We're out of sync with the target now. Did it continue or not? Not is more likely, so report a stop. */ warning (_("Remote failure reply: %s"), buf); - status->kind = TARGET_WAITKIND_STOPPED; - status->value.sig = TARGET_SIGNAL_0; + if (buf[1] == '0' && buf[2] == '6') + { + status->kind = TARGET_WAITKIND_NO_HISTORY; + } + else + { + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = TARGET_SIGNAL_0; + } goto got_status; case 'F': /* File-I/O request. */ remote_fileio_request (buf); @@ -7024,6 +7039,35 @@ remote_command (char *args, int from_tty) help_list (remote_cmdlist, "remote ", -1, gdb_stdout); } +/* Reverse execution. + FIXME: set up as a capability. */ +static enum exec_direction_kind remote_execdir = EXEC_FORWARD; + +static enum exec_direction_kind remote_get_execdir (void) +{ + if (remote_debug && info_verbose) + printf_filtered ("remote execdir is %s\n", + remote_execdir == EXEC_FORWARD ? "forward" : + remote_execdir == EXEC_REVERSE ? "reverse" : + "unknown"); + return remote_execdir; +} + +static int remote_set_execdir (enum exec_direction_kind dir) +{ + if (remote_debug && info_verbose) + printf_filtered ("Set remote execdir: %s\n", + dir == EXEC_FORWARD ? "forward" : + dir == EXEC_REVERSE ? "reverse" : + "bad direction"); + + /* FIXME: check target for capability. */ + if (dir == EXEC_FORWARD || dir == EXEC_REVERSE) + return (remote_execdir = dir); + else + return EXEC_ERROR; +} + static void init_remote_ops (void) { @@ -7072,6 +7116,8 @@ Specify the serial device it is connected to\n\ remote_ops.to_has_registers = 1; remote_ops.to_has_execution = 1; remote_ops.to_has_thread_control = tc_schedlock; /* can lock scheduler */ + remote_ops.to_get_execdir = remote_get_execdir; + remote_ops.to_set_execdir = remote_set_execdir; remote_ops.to_magic = OPS_MAGIC; remote_ops.to_memory_map = remote_memory_map; remote_ops.to_flash_erase = remote_flash_erase; |