diff options
Diffstat (limited to 'gdb/remote.c')
| -rw-r--r-- | gdb/remote.c | 62 |
1 files changed, 60 insertions, 2 deletions
diff --git a/gdb/remote.c b/gdb/remote.c index 866c477b748..0fd8c2482d8 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -2851,7 +2851,15 @@ 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); @@ -3125,6 +3133,11 @@ remote_wait (ptid_t ptid, struct target_waitstatus *status) switch (buf[0]) { case 'E': /* Error of some sort. */ + if (buf[1] == '0' && buf[2] == '6') + { + status->kind = TARGET_WAITKIND_NO_HISTORY; + goto got_status; + } warning (_("Remote failure reply: %s"), buf); continue; case 'F': /* File-I/O request. */ @@ -6110,6 +6123,47 @@ remote_read_description (struct target_ops *target) return NULL; } +/* 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 +remote_doing_call (int starting) +{ + struct remote_state *rs = get_remote_state (); + + if (starting) + strcpy (rs->buf, "QStartCall"); + else + strcpy (rs->buf, "QEndCall"); + remote_send (&rs->buf, &rs->buf_size); +} + static void init_remote_ops (void) { @@ -6157,11 +6211,14 @@ 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; remote_ops.to_flash_done = remote_flash_done; remote_ops.to_read_description = remote_read_description; + remote_ops.to_doing_call = remote_doing_call; } /* Set up the extended remote vector by making a copy of the standard @@ -6294,7 +6351,8 @@ Specify the serial device it is connected to (e.g. /dev/ttya)."; remote_async_ops.to_memory_map = remote_memory_map; remote_async_ops.to_flash_erase = remote_flash_erase; remote_async_ops.to_flash_done = remote_flash_done; - remote_ops.to_read_description = remote_read_description; + remote_async_ops.to_read_description = remote_read_description; + remote_async_ops.to_doing_call = remote_doing_call; } /* Set up the async extended remote vector by making a copy of the standard |