a25a9f49ca
* findvar.c: Move default def of CANNOT_STORE_REGISTER closer to the beginning of the code. * (write_register_gen): New routine. Analogous to read_register_gen. * (write_register_bytes): Another rewrite! Make it smarter about not updating regs with the same value. * monitor.c (printf_monitor readchar): Use stderr instead of stdout to output debug info. Also cleanup readchar a little. * (expect): Make sure that excessive responses are null terminated. * (monitor_open): Check for magic number in monitor_ops struct. Allow multiple commands as init strings. Also, clear all breakpoints. * (monitor_resume monitor_wait): Send a command to dump all the regs for those targets which don't do so when waking up after a continue command. * (monitor_wait): Handle excessive response output better. * (monitor_write_memory): Use block fill, word, and long word commands (if they exist) to write memory more efficiently. * General cleanups to use flag bits instead of individual flag words in monitor_ops struct. * (monitor_command): Return output from command. * (monitor_load_srec): Allocate buffer only once. Use alloca. Wait for load response string instead of using a timeout to start sending S-records. Fix bug where value of srec_frame shrinks. If hashmark is set, print `-' for retransmissions. General cleanups. * (monitor_make_srec): Get rid of S-record default type kludge. * monitor.h: Use seperate struct for memory and register read/write commands. Memory commands can come in byte, word, long, and longlong forms. * (monitor_ops): Change lots of fields. Generalize some stuff. Put all flags into flags word. Allow init to be a list of commands. Add command for clearing all breakpoints, block fill, dumping all registers. * remote-est.c: Rewrite to use new monitor conventions. * config/m68k/est.mt (TDEPFILES): Add monitor.o. * config/m68k/tm-est.h: Set NUM_REGS to 18. * testsuite/gdb.base/break.exp: Lots of cleanups. Use gdb_test more thoroughly.
51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/* Target machine description for EST-300, for GDB, the GNU debugger.
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Copyright 1994 Free Software Foundation, Inc.
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Contributed by Steve Chamberlain @ Cygnus Support.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* GCC is probably the only compiler used on this configuration. So
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get this right even if the code which detects gcc2_compiled. is
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still broken. */
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#define BELIEVE_PCC_PROMOTION 1
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/* We have more complex, useful breakpoints on the target. */
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#define DECR_PC_AFTER_BREAK 0
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#define NUM_REGS 18
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#include "m68k/tm-m68k.h"
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#undef FRAME_CHAIN
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#undef FRAME_CHAIN_VALID
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/* Takes the current frame-struct pointer and returns the chain-pointer
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to get to the calling frame.
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If our current frame pointer is zero, we're at the top; else read out
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the saved FP from memory pointed to by the current FP. */
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#define FRAME_CHAIN(thisframe) \
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((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
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/* If the chain pointer is zero (either because the saved value fetched
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by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
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never fetched anything), we are at the top of the stack. */
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#define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0)
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