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