From: Jim Kingdon Date: Thu, 30 Dec 1993 22:25:52 +0000 (+0000) Subject: * remote-mips.c (mips_error): New function. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4fb192bec12a820bbe443550449101c44b936759;p=binutils-gdb.git * remote-mips.c (mips_error): New function. * remote-mips.c: Use it instead of error() most places. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index b50e220bbba..e88256e9d0b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,8 @@ Thu Dec 30 10:16:54 1993 Jim Kingdon (kingdon@lioth.cygnus.com) + * remote-mips.c (mips_error): New function. + * remote-mips.c: Use it instead of error() most places. + * breakpoint.c (breakpoint_chain): Make static. * breakpoint.c, breakpoint.h (frame_in_dummy): New function. * stack.c (print_frame_info): Use it. diff --git a/gdb/remote-mips.c b/gdb/remote-mips.c index 7425eafec47..1c0228bdd3a 100644 --- a/gdb/remote-mips.c +++ b/gdb/remote-mips.c @@ -280,6 +280,36 @@ static int mips_need_reply = 0; /* Handle used to access serial I/O stream. */ static serial_t mips_desc; +/* Handle low-level error that we can't recover from. Note that just + error()ing out from target_wait or some such low-level place will cause + all hell to break loose--the rest of GDB will tend to get left in an + inconsistent state. */ + +static void NORETURN +mips_error (va_alist) + va_dcl +{ + va_list args; + char *string; + + va_start (args); + target_terminal_ours (); + wrap_here(""); /* Force out any buffered output */ + gdb_flush (gdb_stdout); + if (error_pre_print) + fprintf_filtered (gdb_stderr, error_pre_print); + string = va_arg (args, char *); + vfprintf_filtered (gdb_stderr, string, args); + fprintf_filtered (gdb_stderr, "\n"); + va_end (args); + + /* We probably should print "ending remote debugging" here, but that would + appear to be a problem for mips_initialize and its catch_errors. */ + target_mourn_inferior (); + + return_to_top_level (RETURN_ERROR); +} + /* Read a character from the remote, aborting on error. Returns SERIAL_TIMEOUT on timeout (since that's what SERIAL_READCHAR returns). FIXME: If we see the string "" from the board, then @@ -304,9 +334,9 @@ mips_readchar (timeout) ch = SERIAL_READCHAR (mips_desc, timeout); if (ch == SERIAL_EOF) - error ("End of file from remote"); + mips_error ("End of file from remote"); if (ch == SERIAL_ERROR) - error ("Error reading from remote: %s", safe_strerror (errno)); + mips_error ("Error reading from remote: %s", safe_strerror (errno)); if (sr_get_debug () > 1) { if (ch != SERIAL_TIMEOUT) @@ -334,7 +364,7 @@ mips_readchar (timeout) state = 0; - error ("Remote board reset"); + mips_error ("Remote board reset"); } if (ch == nextstate[state]) @@ -384,7 +414,7 @@ mips_receive_header (hdr, pgarbage, ch, timeout) ++*pgarbage; if (*pgarbage > mips_syn_garbage) - error ("Remote debugging protocol failure"); + mips_error ("Remote debugging protocol failure"); } } @@ -480,7 +510,7 @@ mips_send_packet (s, get_ack) len = strlen (s); if (len > DATA_MAXLEN) - error ("MIPS protocol data packet too long: %s", s); + mips_error ("MIPS protocol data packet too long: %s", s); packet = (unsigned char *) alloca (HDR_LENGTH + len + TRLR_LENGTH + 1); @@ -519,7 +549,7 @@ mips_send_packet (s, get_ack) if (SERIAL_WRITE (mips_desc, packet, HDR_LENGTH + len + TRLR_LENGTH) != 0) - error ("write to target failed: %s", safe_strerror (errno)); + mips_error ("write to target failed: %s", safe_strerror (errno)); garbage = 0; ch = 0; @@ -592,7 +622,7 @@ mips_send_packet (s, get_ack) } } - error ("Remote did not acknowledge packet"); + mips_error ("Remote did not acknowledge packet"); } /* Receive and acknowledge a packet, returning the data in BUFF (which @@ -621,7 +651,7 @@ mips_receive_packet (buff) int err; if (mips_receive_header (hdr, &garbage, ch, mips_receive_wait) != 0) - error ("Timed out waiting for remote packet"); + mips_error ("Timed out waiting for remote packet"); ch = 0; @@ -655,7 +685,7 @@ mips_receive_packet (buff) break; } if (rch == SERIAL_TIMEOUT) - error ("Timed out waiting for remote packet"); + mips_error ("Timed out waiting for remote packet"); buff[i] = rch; } @@ -669,7 +699,7 @@ mips_receive_packet (buff) err = mips_receive_trailer (trlr, &garbage, &ch, mips_receive_wait); if (err == -1) - error ("Timed out waiting for packet"); + mips_error ("Timed out waiting for packet"); if (err == -2) { if (sr_get_debug () > 0) @@ -706,7 +736,7 @@ mips_receive_packet (buff) } if (SERIAL_WRITE (mips_desc, ack, HDR_LENGTH + TRLR_LENGTH) != 0) - error ("write to target failed: %s", safe_strerror (errno)); + mips_error ("write to target failed: %s", safe_strerror (errno)); } if (sr_get_debug () > 0) @@ -737,7 +767,7 @@ mips_receive_packet (buff) } if (SERIAL_WRITE (mips_desc, ack, HDR_LENGTH + TRLR_LENGTH) != 0) - error ("write to target failed: %s", safe_strerror (errno)); + mips_error ("write to target failed: %s", safe_strerror (errno)); return len; } @@ -804,7 +834,7 @@ mips_request (cmd, addr, data, perr) if (sscanf (buff, "0x%x %c 0x%x 0x%x", &rpid, &rcmd, &rerrflg, &rresponse) != 4 || (cmd != '\0' && rcmd != cmd)) - error ("Bad response from remote board"); + mips_error ("Bad response from remote board"); if (rerrflg != 0) { @@ -860,7 +890,7 @@ mips_initialize () char cc; if (tries > 0) - error ("Could not connect to target"); + mips_error ("Could not connect to target"); ++tries; /* We did not receive the packet we expected; try resetting the @@ -959,7 +989,7 @@ mips_resume (pid, step, siggnal) int pid, step, siggnal; { if (siggnal) - error ("Can't send signals to a remote system. Try `handle %d ignore'.", + mips_error ("Can't send signals to a remote system. Try `handle %d ignore'.", siggnal); mips_request (step ? 's' : 'c', @@ -989,7 +1019,7 @@ mips_wait (pid, status) rstatus = mips_request ('\0', (unsigned int) 0, (unsigned int) 0, &err); if (err) - error ("Remote failure: %s", safe_strerror (errno)); + mips_error ("Remote failure: %s", safe_strerror (errno)); /* FIXME: The target board uses numeric signal values which are those used on MIPS systems. If the host uses different signal @@ -1058,7 +1088,7 @@ mips_fetch_registers (regno) val = mips_request ('r', (unsigned int) mips_map_regno (regno), (unsigned int) 0, &err); if (err) - error ("Can't read register %d: %s", regno, safe_strerror (errno)); + mips_error ("Can't read register %d: %s", regno, safe_strerror (errno)); { char buf[MAX_REGISTER_RAW_SIZE]; @@ -1097,7 +1127,7 @@ mips_store_registers (regno) (unsigned int) read_register (regno), &err); if (err) - error ("Can't write register %d: %s", regno, safe_strerror (errno)); + mips_error ("Can't write register %d: %s", regno, safe_strerror (errno)); } /* Fetch a word from the target board. */ @@ -1115,7 +1145,7 @@ mips_fetch_word (addr) /* Data space failed; try instruction space. */ val = mips_request ('i', (unsigned int) addr, (unsigned int) 0, &err); if (err) - error ("Can't read address 0x%x: %s", addr, safe_strerror (errno)); + mips_error ("Can't read address 0x%x: %s", addr, safe_strerror (errno)); } return val; } @@ -1135,7 +1165,7 @@ mips_store_word (addr, val) /* Data space failed; try instruction space. */ mips_request ('I', (unsigned int) addr, (unsigned int) val, &err); if (err) - error ("Can't write address 0x%x: %s", addr, safe_strerror (errno)); + mips_error ("Can't write address 0x%x: %s", addr, safe_strerror (errno)); } } @@ -1248,10 +1278,10 @@ mips_create_inferior (execfile, args, env) CORE_ADDR entry_pt; if (args && *args) - error ("Can't pass arguments to remote MIPS board."); + mips_error ("Can't pass arguments to remote MIPS board."); if (execfile == 0 || exec_bfd == 0) - error ("No exec file specified"); + mips_error ("No exec file specified"); entry_pt = (CORE_ADDR) bfd_get_start_address (exec_bfd);