1 /* Target definitions for delta68.
2 Copyright 1993, 1994, 1998, 1999, 2000 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
23 /* Define BPT_VECTOR if it is different than the default.
24 This is the vector number used by traps to indicate a breakpoint. */
26 #define BPT_VECTOR 0x1
28 #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled%"
29 #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled%"
31 /* Amount PC must be decremented by after a breakpoint.
32 On the Delta, the kernel decrements it for us. */
34 #define DECR_PC_AFTER_BREAK 0
36 /* Not sure what happens if we try to store this register, but
37 phdm@info.ucl.ac.be says we need this define. */
39 #define CANNOT_STORE_REGISTER(regno) (regno == FPI_REGNUM)
41 /* Extract from an array REGBUF containing the (raw) register state
42 a function return value of type TYPE, and copy that, in virtual format,
45 /* When it returns a float/double value, use fp0 in sysV68. */
46 /* When it returns a pointer value, use a0 in sysV68. */
48 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
49 if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
50 REGISTER_CONVERT_TO_VIRTUAL (FP0_REGNUM, TYPE, \
51 ®BUF[REGISTER_BYTE (FP0_REGNUM)], \
55 (char *) ((REGBUF) + \
56 (TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 : \
57 (TYPE_LENGTH(TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH(TYPE)))), \
60 /* Write into appropriate registers a function return value
61 of type TYPE, given in virtual format. */
63 /* When it returns a float/double value, use fp0 in sysV68. */
64 /* When it returns a pointer value, use a0 in sysV68. */
66 #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
67 if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
69 char raw_buf[REGISTER_RAW_SIZE (FP0_REGNUM)]; \
70 REGISTER_CONVERT_TO_RAW (TYPE, FP0_REGNUM, VALBUF, raw_buf); \
71 deprecated_write_register_bytes (REGISTER_BYTE (FP0_REGNUM), \
72 raw_buf, REGISTER_RAW_SIZE (FP0_REGNUM)); \
75 deprecated_write_register_bytes ((TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 : 0), \
76 VALBUF, TYPE_LENGTH (TYPE))
78 /* Return number of args passed to a frame.
79 Can return -1, meaning no way to tell. */
81 extern int delta68_frame_num_args (struct frame_info
*fi
);
82 #define FRAME_NUM_ARGS(fi) (delta68_frame_num_args ((fi)))
84 /* On M68040 versions of sysV68 R3V7.1, ptrace(PT_WRITE_I) does not clear
85 the processor's instruction cache as it should. */
86 #define CLEAR_INSN_CACHE() clear_insn_cache()
88 #include "m68k/tm-m68k.h"
90 /* Extract from an array REGBUF containing the (raw) register state
91 the address in which a function should return its structure value,
92 as a CORE_ADDR (or an expression that can be used as one). */
94 #undef DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS
95 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF)\
96 (*(CORE_ADDR *)((char*)(REGBUF) + 8 * 4))
98 extern int delta68_in_sigtramp (CORE_ADDR pc
, char *name
);
99 #define IN_SIGTRAMP(pc,name) delta68_in_sigtramp (pc, name)
101 extern CORE_ADDR
delta68_frame_saved_pc (struct frame_info
*fi
);
102 #undef DEPRECATED_FRAME_SAVED_PC
103 #define DEPRECATED_FRAME_SAVED_PC(fi) delta68_frame_saved_pc (fi)
105 extern CORE_ADDR
delta68_frame_args_address (struct frame_info
*fi
);
106 #undef FRAME_ARGS_ADDRESS
107 #define FRAME_ARGS_ADDRESS(fi) delta68_frame_args_address (fi)
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