projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c | 1 | /* Sequent Symmetry target interface, for GDB. |
| b6ba6518 KB |
2 | Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 2000 |
| 3 | Free Software Foundation, Inc. | |
| c906108c | 4 | |
| c5aa993b | 5 | This file is part of GDB. |
| c906108c | 6 | |
| c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2 of the License, or | |
| 10 | (at your option) any later version. | |
| c906108c | 11 | |
| c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| c906108c | 16 | |
| c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software | |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 | Boston, MA 02111-1307, USA. */ | |
| c906108c SS |
21 | |
| 22 | /* many 387-specific items of use taken from i386-dep.c */ | |
| 23 | ||
| 24 | #include "defs.h" | |
| 25 | #include "frame.h" | |
| 26 | #include "inferior.h" | |
| 27 | #include "symtab.h" | |
| 28 | ||
| 29 | #include <signal.h> | |
| 30 | #include <sys/param.h> | |
| 31 | #include <sys/user.h> | |
| 32 | #include <sys/dir.h> | |
| 33 | #include <sys/ioctl.h> | |
| 34 | #include "gdb_stat.h" | |
| 35 | #include "gdbcore.h" | |
| 36 | #include <fcntl.h> | |
| 37 | ||
| 38 | void | |
| fba45db2 | 39 | symmetry_extract_return_value (struct type *type, char *regbuf, char *valbuf) |
| c906108c | 40 | { |
| c5aa993b JM |
41 | union |
| 42 | { | |
| 43 | double d; | |
| 44 | int l[2]; | |
| 45 | } | |
| 46 | xd; | |
| c906108c SS |
47 | struct minimal_symbol *msymbol; |
| 48 | float f; | |
| 49 | ||
| c5aa993b JM |
50 | if (TYPE_CODE_FLT == TYPE_CODE (type)) |
| 51 | { | |
| 52 | msymbol = lookup_minimal_symbol ("1167_flt", NULL, NULL); | |
| 53 | if (msymbol != NULL) | |
| 54 | { | |
| 55 | /* found "1167_flt" means 1167, %fp2-%fp3 */ | |
| 56 | /* float & double; 19= %fp2, 20= %fp3 */ | |
| 57 | /* no single precision on 1167 */ | |
| 58 | xd.l[1] = *((int *) ®buf[REGISTER_BYTE (19)]); | |
| 59 | xd.l[0] = *((int *) ®buf[REGISTER_BYTE (20)]); | |
| 60 | switch (TYPE_LENGTH (type)) | |
| 61 | { | |
| 62 | case 4: | |
| 63 | /* FIXME: broken for cross-debugging. */ | |
| 64 | f = (float) xd.d; | |
| 65 | memcpy (valbuf, &f, TYPE_LENGTH (type)); | |
| 66 | break; | |
| 67 | case 8: | |
| 68 | /* FIXME: broken for cross-debugging. */ | |
| 69 | memcpy (valbuf, &xd.d, TYPE_LENGTH (type)); | |
| 70 | break; | |
| 71 | default: | |
| 72 | error ("Unknown floating point size"); | |
| 73 | break; | |
| 74 | } | |
| 75 | } | |
| 76 | else | |
| 77 | { | |
| 78 | /* 387 %st(0), gcc uses this */ | |
| 79 | i387_to_double (((int *) ®buf[REGISTER_BYTE (3)]), | |
| 80 | &xd.d); | |
| 81 | switch (TYPE_LENGTH (type)) | |
| 82 | { | |
| 83 | case 4: /* float */ | |
| 84 | f = (float) xd.d; | |
| 85 | /* FIXME: broken for cross-debugging. */ | |
| 86 | memcpy (valbuf, &f, 4); | |
| 87 | break; | |
| 88 | case 8: /* double */ | |
| 89 | /* FIXME: broken for cross-debugging. */ | |
| 90 | memcpy (valbuf, &xd.d, 8); | |
| 91 | break; | |
| 92 | default: | |
| 93 | error ("Unknown floating point size"); | |
| 94 | break; | |
| 95 | } | |
| 96 | } | |
| 97 | } | |
| 98 | else | |
| 99 | { | |
| 100 | memcpy (valbuf, regbuf, TYPE_LENGTH (type)); | |
| c906108c | 101 | } |
| c906108c | 102 | } |