From 5076de826cefc4cd828a8cf4cd6940d9a82f9e70 Mon Sep 17 00:00:00 2001 From: Fred Fish Date: Tue, 23 Mar 1993 01:19:58 +0000 Subject: * config/{*.mt, *.mh}: All target and host makefile fragment config files moved to an appropriate config/ subdirectory. * nm-*, xm-*, tm-*: All native, host, and target files, which get linked to nm.h, xm.h, and tm.h respectively by configure, moved to appropriate config/ subdirectory. --- gdb/config/m68k/tm-os68k.h | 47 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 gdb/config/m68k/tm-os68k.h (limited to 'gdb/config/m68k/tm-os68k.h') diff --git a/gdb/config/m68k/tm-os68k.h b/gdb/config/m68k/tm-os68k.h new file mode 100644 index 0000000..bf50c5c --- /dev/null +++ b/gdb/config/m68k/tm-os68k.h @@ -0,0 +1,47 @@ +/* Parameters for execution on VxWorks 68k's, for GDB, the GNU debugger. + Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc. + Contributed by Cygnus Support. + +This file is part of GDB. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#define GDBINIT_FILENAME ".os68gdbinit" + +#define DEFAULT_PROMPT "(os68k) " + +#include "m68k/tm-68k.h" + +/* We have more complex, useful breakpoints on the target. */ +#undef DECR_PC_AFTER_BREAK +#define DECR_PC_AFTER_BREAK 0 + +/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */ +#undef FRAME_CHAIN +#undef FRAME_CHAIN_VALID + +/* Takes the current frame-struct pointer and returns the chain-pointer + to get to the calling frame. + + If our current frame pointer is zero, we're at the top; else read out + the saved FP from memory pointed to by the current FP. */ + +#define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0) + +/* If the chain pointer is zero (either because the saved value fetched + by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN + never fetched anything), we are at the top of the stack. */ + +#define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0) -- cgit v1.1