projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c SS |
1 | /* Sequent Symmetry target interface, for GDB. |
| 2 | Copyright (C) 1986, 1987, 1989, 1991, 1994 Free Software Foundation, Inc. | |
| 3 | ||
| c5aa993b | 4 | This file is part of GDB. |
| c906108c | 5 | |
| c5aa993b JM |
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. | |
| c906108c | 10 | |
| c5aa993b JM |
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. | |
| c906108c | 15 | |
| c5aa993b JM |
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. */ | |
| c906108c SS |
20 | |
| 21 | /* many 387-specific items of use taken from i386-dep.c */ | |
| 22 | ||
| 23 | #include "defs.h" | |
| 24 | #include "frame.h" | |
| 25 | #include "inferior.h" | |
| 26 | #include "symtab.h" | |
| 27 | ||
| 28 | #include <signal.h> | |
| 29 | #include <sys/param.h> | |
| 30 | #include <sys/user.h> | |
| 31 | #include <sys/dir.h> | |
| 32 | #include <sys/ioctl.h> | |
| 33 | #include "gdb_stat.h" | |
| 34 | #include "gdbcore.h" | |
| 35 | #include <fcntl.h> | |
| 36 | ||
| 37 | void | |
| c5aa993b | 38 | symmetry_extract_return_value (type, regbuf, valbuf) |
| c906108c SS |
39 | struct type *type; |
| 40 | char *regbuf; | |
| 41 | char *valbuf; | |
| 42 | { | |
| c5aa993b JM |
43 | union |
| 44 | { | |
| 45 | double d; | |
| 46 | int l[2]; | |
| 47 | } | |
| 48 | xd; | |
| c906108c SS |
49 | struct minimal_symbol *msymbol; |
| 50 | float f; | |
| 51 | ||
| c5aa993b JM |
52 | if (TYPE_CODE_FLT == TYPE_CODE (type)) |
| 53 | { | |
| 54 | msymbol = lookup_minimal_symbol ("1167_flt", NULL, NULL); | |
| 55 | if (msymbol != NULL) | |
| 56 | { | |
| 57 | /* found "1167_flt" means 1167, %fp2-%fp3 */ | |
| 58 | /* float & double; 19= %fp2, 20= %fp3 */ | |
| 59 | /* no single precision on 1167 */ | |
| 60 | xd.l[1] = *((int *) ®buf[REGISTER_BYTE (19)]); | |
| 61 | xd.l[0] = *((int *) ®buf[REGISTER_BYTE (20)]); | |
| 62 | switch (TYPE_LENGTH (type)) | |
| 63 | { | |
| 64 | case 4: | |
| 65 | /* FIXME: broken for cross-debugging. */ | |
| 66 | f = (float) xd.d; | |
| 67 | memcpy (valbuf, &f, TYPE_LENGTH (type)); | |
| 68 | break; | |
| 69 | case 8: | |
| 70 | /* FIXME: broken for cross-debugging. */ | |
| 71 | memcpy (valbuf, &xd.d, TYPE_LENGTH (type)); | |
| 72 | break; | |
| 73 | default: | |
| 74 | error ("Unknown floating point size"); | |
| 75 | break; | |
| 76 | } | |
| 77 | } | |
| 78 | else | |
| 79 | { | |
| 80 | /* 387 %st(0), gcc uses this */ | |
| 81 | i387_to_double (((int *) ®buf[REGISTER_BYTE (3)]), | |
| 82 | &xd.d); | |
| 83 | switch (TYPE_LENGTH (type)) | |
| 84 | { | |
| 85 | case 4: /* float */ | |
| 86 | f = (float) xd.d; | |
| 87 | /* FIXME: broken for cross-debugging. */ | |
| 88 | memcpy (valbuf, &f, 4); | |
| 89 | break; | |
| 90 | case 8: /* double */ | |
| 91 | /* FIXME: broken for cross-debugging. */ | |
| 92 | memcpy (valbuf, &xd.d, 8); | |
| 93 | break; | |
| 94 | default: | |
| 95 | error ("Unknown floating point size"); | |
| 96 | break; | |
| 97 | } | |
| 98 | } | |
| 99 | } | |
| 100 | else | |
| 101 | { | |
| 102 | memcpy (valbuf, regbuf, TYPE_LENGTH (type)); | |
| c906108c | 103 | } |
| c906108c | 104 | } |