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db2302cb93
match_bitstring_literal): Guard tolower calls with isupper, tolower on old BSD systems blindly subtracts a constant. * dbxread.c (read_ofile_symtab): Check for __gnu_compiled_* as well when determining the producer of the object file. * mdebugread.c (has_opaque_xref): New function to check for cross reference to an opaque aggregate. * mdebugread.c (parse_symbol, parse_partial_symbols): Do not enter typedefs to opaque aggregates into the symbol tables. * mdebugread.c (parse_external): Remove skip_procedures argument, it has always been 1. Remove code that handled stProc symbols, it was never executed and was wrong, as the index of a stProc symbol points to the local symbol table and not to the auxiliary symbol info. Update caller. * mdebugread.c (parse_partial_symbols): Do not enter external stProc symbols into the partial symbol table, they are already entered into the minimal symbol table. * config/i386/tm-symmetry.h: Clean up, it is now only used for Dynix. Remove all conditionals and definitions for ptx. I386_REGNO_TO_SYMMETRY moved to here from symm-tdep.c. Fix addresses of floating point registers in REGISTER_U_ADDR. STORE_STRUCT_RETURN now handles cc and gcc conventions. FRAME_CHAIN, FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC, IN_SIGTRAMP, SIGCONTEXT_PC_OFFSET defined to make backtracing through signal trampoline code work. * config/i386/xm-symmetry.h: Clean up, it is now only used for Dynix. Remove all conditionals and definitions for ptx. Remove KDB definitions. * symm-nat.c (store_inferior_registers): Fetch registers before storing them to obtain valid floating point control registers. Store fpu registers. * symm-nat.c (print_1167_control_word): Dynix 3.1.1 defines FPA_PCR_CC_C0 and FPA_PCR_CC_C1, avoid duplicate case value. * symm-nat.c (fetch_inferior_registers, child_xfer_memory): Fix typos. * symm-nat.c (child_resume): Update type of `signal' parameter. * symm-tdep.c (I386_REGNO_TO_SYMMETRY): Moved to tm-symmetry.h.
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/* Sequent Symmetry target interface, for GDB.
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Copyright (C) 1986, 1987, 1989, 1991, 1994 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* many 387-specific items of use taken from i386-dep.c */
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include "symtab.h"
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#include <signal.h>
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#include <sys/param.h>
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#include <sys/user.h>
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#include <sys/dir.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include "gdbcore.h"
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#include <fcntl.h>
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void
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symmetry_extract_return_value(type, regbuf, valbuf)
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struct type *type;
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char *regbuf;
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char *valbuf;
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{
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union {
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double d;
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int l[2];
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} xd;
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struct minimal_symbol *msymbol;
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float f;
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if (TYPE_CODE_FLT == TYPE_CODE(type)) {
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msymbol = lookup_minimal_symbol ("1167_flt", (struct objfile *) NULL);
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if (msymbol != NULL) {
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/* found "1167_flt" means 1167, %fp2-%fp3 */
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/* float & double; 19= %fp2, 20= %fp3 */
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/* no single precision on 1167 */
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xd.l[1] = *((int *)®buf[REGISTER_BYTE(19)]);
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xd.l[0] = *((int *)®buf[REGISTER_BYTE(20)]);
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switch (TYPE_LENGTH(type)) {
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case 4:
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/* FIXME: broken for cross-debugging. */
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f = (float) xd.d;
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memcpy (valbuf, &f, TYPE_LENGTH(type));
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break;
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case 8:
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/* FIXME: broken for cross-debugging. */
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memcpy (valbuf, &xd.d, TYPE_LENGTH(type));
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break;
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default:
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error("Unknown floating point size");
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break;
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}
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} else {
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/* 387 %st(0), gcc uses this */
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i387_to_double(((int *)®buf[REGISTER_BYTE(3)]),
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&xd.d);
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switch (TYPE_LENGTH(type)) {
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case 4: /* float */
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f = (float) xd.d;
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/* FIXME: broken for cross-debugging. */
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memcpy (valbuf, &f, 4);
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break;
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case 8: /* double */
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/* FIXME: broken for cross-debugging. */
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memcpy (valbuf, &xd.d, 8);
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break;
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default:
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error("Unknown floating point size");
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break;
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}
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}
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} else {
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memcpy (valbuf, regbuf, TYPE_LENGTH (type));
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}
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}
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