/* Target definitions for delta68. Copyright 1993, 1994, 1998, 1999, 2000 Free Software Foundation, Inc. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "regcache.h" /* Define BPT_VECTOR if it is different than the default. This is the vector number used by traps to indicate a breakpoint. */ #define BPT_VECTOR 0x1 #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled%" #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled%" /* Amount PC must be decremented by after a breakpoint. On the Delta, the kernel decrements it for us. */ #define DECR_PC_AFTER_BREAK 0 /* Not sure what happens if we try to store this register, but phdm@info.ucl.ac.be says we need this define. */ #define CANNOT_STORE_REGISTER(regno) (regno == FPI_REGNUM) /* Extract from an array REGBUF containing the (raw) register state a function return value of type TYPE, and copy that, in virtual format, into VALBUF. */ /* When it returns a float/double value, use fp0 in sysV68. */ /* When it returns a pointer value, use a0 in sysV68. */ #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \ REGISTER_CONVERT_TO_VIRTUAL (FP0_REGNUM, TYPE, \ ®BUF[REGISTER_BYTE (FP0_REGNUM)], \ VALBUF); \ else \ memcpy ((VALBUF), \ (char *) ((REGBUF) + \ (TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 : \ (TYPE_LENGTH(TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH(TYPE)))), \ TYPE_LENGTH(TYPE)) /* Write into appropriate registers a function return value of type TYPE, given in virtual format. */ /* When it returns a float/double value, use fp0 in sysV68. */ /* When it returns a pointer value, use a0 in sysV68. */ #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \ if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \ { \ char raw_buf[REGISTER_RAW_SIZE (FP0_REGNUM)]; \ REGISTER_CONVERT_TO_RAW (TYPE, FP0_REGNUM, VALBUF, raw_buf); \ deprecated_write_register_bytes (REGISTER_BYTE (FP0_REGNUM), \ raw_buf, REGISTER_RAW_SIZE (FP0_REGNUM)); \ } \ else \ deprecated_write_register_bytes ((TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 : 0), \ VALBUF, TYPE_LENGTH (TYPE)) /* Return number of args passed to a frame. Can return -1, meaning no way to tell. */ extern int delta68_frame_num_args (struct frame_info *fi); #define FRAME_NUM_ARGS(fi) (delta68_frame_num_args ((fi))) /* On M68040 versions of sysV68 R3V7.1, ptrace(PT_WRITE_I) does not clear the processor's instruction cache as it should. */ #define CLEAR_INSN_CACHE() clear_insn_cache() #include "m68k/tm-m68k.h" /* Extract from an array REGBUF containing the (raw) register state the address in which a function should return its structure value, as a CORE_ADDR (or an expression that can be used as one). */ #undef DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF)\ (*(CORE_ADDR *)((char*)(REGBUF) + 8 * 4)) extern int delta68_in_sigtramp (CORE_ADDR pc, char *name); #define IN_SIGTRAMP(pc,name) delta68_in_sigtramp (pc, name) extern CORE_ADDR delta68_frame_saved_pc (struct frame_info *fi); #undef FRAME_SAVED_PC #define FRAME_SAVED_PC(fi) delta68_frame_saved_pc (fi) extern CORE_ADDR delta68_frame_args_address (struct frame_info *fi); #undef FRAME_ARGS_ADDRESS #define FRAME_ARGS_ADDRESS(fi) delta68_frame_args_address (fi)