projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c SS |
1 | /* Parameters for execution on a Sony/NEWS, for GDB, the GNU debugger. |
| 2 | Copyright 1987, 1989, 1991, 1993 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GDB. | |
| 5 | ||
| 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. | |
| 10 | ||
| 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. | |
| 15 | ||
| 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, Boston, MA 02111-1307, USA. */ | |
| 19 | ||
| 20 | /* See following cpu type determination macro to get the machine type. | |
| 21 | ||
| 22 | Here is an m-news.h file for gdb. It supports the 68881 registers. | |
| 23 | by hikichi@srava.sra.junet | |
| 24 | ||
| 25 | * Ptrace for handling floating register has a bug(before NEWS OS version 2.2), | |
| 26 | * After NEWS OS version 3.2, some of ptrace's bug is fixed. | |
| 27 | But we cannot change the floating register(see adb(1) in OS 3.2) yet. */ | |
| 28 | ||
| 29 | /* Extract from an array REGBUF containing the (raw) register state | |
| 30 | a function return value of type TYPE, and copy that, in virtual format, | |
| 31 | into VALBUF. */ | |
| 32 | ||
| 33 | /* when it return the floating value, use the FP0 in NEWS. */ | |
| 34 | #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ | |
| 35 | { if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \ | |
| 36 | { \ | |
| 37 | REGISTER_CONVERT_TO_VIRTUAL (FP0_REGNUM, TYPE, \ | |
| 38 | ®BUF[REGISTER_BYTE (FP0_REGNUM)], \ | |
| 39 | VALBUF); \ | |
| 40 | } \ | |
| 41 | else \ | |
| 42 | memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)); } | |
| 43 | ||
| 44 | /* Write into appropriate registers a function return value | |
| 45 | of type TYPE, given in virtual format. */ | |
| 46 | ||
| 47 | /* when it return the floating value, use the FP0 in NEWS. */ | |
| 48 | #define STORE_RETURN_VALUE(TYPE,VALBUF) \ | |
| 49 | { if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \ | |
| 50 | { \ | |
| 51 | char raw_buf[REGISTER_RAW_SIZE (FP0_REGNUM)]; \ | |
| 52 | REGISTER_CONVERT_TO_RAW (TYPE, FP0_REGNUM, VALBUF, raw_buf); \ | |
| 53 | write_register_bytes (REGISTER_BYTE (FP0_REGNUM), \ | |
| 54 | raw_buf, REGISTER_RAW_SIZE (FP0_REGNUM)); \ | |
| 55 | } \ | |
| 56 | else \ | |
| 57 | write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)); } | |
| 58 | ||
| 59 | /* Return number of args passed to a frame. | |
| 60 | Can return -1, meaning no way to tell. */ | |
| 61 | ||
| 392a587b | 62 | extern int news_frame_num_args PARAMS ((struct frame_info *fi)); |
| cce74817 | 63 | #define FRAME_NUM_ARGS(fi) (news_frame_num_args ((fi))) |
| c906108c SS |
64 | |
| 65 | #include "m68k/tm-m68k.h" |