-/* 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[] =
+/* We must not compile this code for 64-bit Solaris x86. */
+#if !defined (PR_MODEL_NATIVE) || (PR_MODEL_NATIVE == PR_MODEL_ILP32)
+
+#include "gregset.h"
+
+/* The `/proc' interface divides the target machine's register set up
+ into two different sets, the general purpose 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-purpose
+ 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;
+
+ Incidentally fpchip_state contains the FPU state in the same format
+ as used by the "fsave" instruction, and that's the only thing we
+ support here. I don't know how the emulator stores it state. The
+ Weitek stuff definitely isn't supported.
+
+ The routines defined here, provide the packing and unpacking of
+ gregset_t and fpregset_t formatted data. */
+
+#ifdef HAVE_GREGSET_T
+
+/* Mapping between the general-purpose registers in `/proc'
+ format and GDB's register array layout. */
+static int regmap[] =