+Sat Oct 17 00:59:23 1992 Fred Fish (fnf@cygnus.com)
+
+ Native support cleanup and corefile fixes for i386 SVR4 systems.
+
+ * i386-tdep.c (supply_gregset, fill_gregset, supply_fpregset,
+ fill_fpregset): Moved to i386v4-nat.c
+ * i386v4-nat.c, nm-i386v4.h, : New files.
+ * i386sol2.mh, i386v4.mh, ncr3000.mh (NAT_FILE): Use nm-i386v4.h.
+ * i386sol2.mh, i386v4.mh, ncr3000.mh (NATDEPFILES): Add corelow.o,
+ change i386v-nat.o to i386v4-nat.o.
+
Fri Oct 16 13:06:08 1992 K. Richard Pixley (rich@sendai.cygnus.com)
Miscellaneous 386 configs updated.
--- /dev/null
+/* Native-dependent code for SVR4 Unix running on i386's, for GDB.
+ Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "defs.h"
+#include <sys/procfs.h>
+
+/* The /proc interface divides the target machine's register set up into
+ two different sets, the general register set (gregset) and the floating
+ point register set (fpregset). For each set, there is an ioctl to get
+ the current register set and another ioctl to set the current values.
+
+ The actual structure passed through the ioctl interface is, of course,
+ naturally machine dependent, and is different for each set of registers.
+ For the i386 for example, the general register set is typically defined
+ by:
+
+ typedef int gregset_t[19]; (in <sys/regset.h>)
+
+ #define GS 0 (in <sys/reg.h>)
+ #define FS 1
+ ...
+ #define UESP 17
+ #define SS 18
+
+ and the floating point set by:
+
+ typedef struct fpregset
+ {
+ union
+ {
+ struct fpchip_state // fp extension state //
+ {
+ int state[27]; // 287/387 saved state //
+ int status; // status word saved at exception //
+ } fpchip_state;
+ struct fp_emul_space // for emulators //
+ {
+ char fp_emul[246];
+ char fp_epad[2];
+ } fp_emul_space;
+ int f_fpregs[62]; // union of the above //
+ } fp_reg_set;
+ long f_wregs[33]; // saved weitek state //
+ } fpregset_t;
+
+ These routines provide the packing and unpacking of gregset_t and
+ fpregset_t formatted data.
+
+ */
+
+/* This is a duplicate of the table in i386-xdep.c. */
+
+static int regmap[] =
+{
+ EAX, ECX, EDX, EBX,
+ UESP, EBP, ESI, EDI,
+ EIP, EFL, CS, SS,
+ DS, ES, FS, GS,
+};
+
+
+/* Given a pointer to a general register set in /proc format (gregset_t *),
+ unpack the register contents and supply them as gdb's idea of the current
+ register values. */
+
+void
+supply_gregset (gregsetp)
+ gregset_t *gregsetp;
+{
+ register int regi;
+ register greg_t *regp = (greg_t *) gregsetp;
+ extern int regmap[];
+
+ for (regi = 0 ; regi < NUM_REGS ; regi++)
+ {
+ supply_register (regi, (char *) (regp + regmap[regi]));
+ }
+}
+
+void
+fill_gregset (gregsetp, regno)
+ gregset_t *gregsetp;
+ int regno;
+{
+ int regi;
+ register greg_t *regp = (greg_t *) gregsetp;
+ extern char registers[];
+ extern int regmap[];
+
+ for (regi = 0 ; regi < NUM_REGS ; regi++)
+ {
+ if ((regno == -1) || (regno == regi))
+ {
+ *(regp + regmap[regi]) = *(int *) ®isters[REGISTER_BYTE (regi)];
+ }
+ }
+}
+
+#if defined (FP0_REGNUM)
+
+/* Given a pointer to a floating point register set in /proc format
+ (fpregset_t *), unpack the register contents and supply them as gdb's
+ idea of the current floating point register values. */
+
+void
+supply_fpregset (fpregsetp)
+ fpregset_t *fpregsetp;
+{
+ register int regi;
+
+ /* FIXME: see m68k-tdep.c for an example, for the m68k. */
+}
+
+/* Given a pointer to a floating point register set in /proc format
+ (fpregset_t *), update the register specified by REGNO from gdb's idea
+ of the current floating point register set. If REGNO is -1, update
+ them all. */
+
+void
+fill_fpregset (fpregsetp, regno)
+ fpregset_t *fpregsetp;
+ int regno;
+{
+ int regi;
+ char *to;
+ char *from;
+ extern char registers[];
+
+ /* FIXME: see m68k-tdep.c for an example, for the m68k. */
+}
+
+#endif /* defined (FP0_REGNUM) */
--- /dev/null
+/* Native support for i386 running SVR4.
+ Copyright 1986, 1987, 1989, 1992 Free Software Foundation, Inc.
+ Changes for 80386 by Pace Willisson (pace@prep.ai.mit.edu), July 1988.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
projects / binutils-gdb.git / commitdiff