+#include "sparc-tdep.h"
+#include "sparc-nat.h"
+#include "inf-ptrace.h"
+
+/* With some trickery we can use the code in this file for most (if
+ not all) ptrace(2) based SPARC systems, which includes SunOS 4,
+ GNU/Linux and the various SPARC BSD's.
+
+ First, we need a data structure for use with ptrace(2). SunOS has
+ `struct regs' and `struct fp_status' in <machine/reg.h>. BSD's
+ have `struct reg' and `struct fpreg' in <machine/reg.h>. GNU/Linux
+ has the same structures as SunOS 4, but they're in <asm/reg.h>,
+ which is a kernel header. As a general rule we avoid including
+ GNU/Linux kernel headers. Fortunately GNU/Linux has a `gregset_t'
+ and a `fpregset_t' that are equivalent to `struct regs' and `struct
+ fp_status' in <sys/ucontext.h>, which is automatically included by
+ <signal.h>. Settling on using the `gregset_t' and `fpregset_t'
+ typedefs, providing them for the other systems, therefore solves
+ the puzzle. */
+
+#ifdef HAVE_MACHINE_REG_H
+#ifdef HAVE_STRUCT_REG
+typedef struct reg gregset_t;
+typedef struct fpreg fpregset_t;
+#else
+typedef struct regs gregset_t;
+typedef struct fp_status fpregset_t;
+#endif
+#endif
+
+/* Second, we need to remap the BSD ptrace(2) requests to their SunOS
+ equivalents. GNU/Linux already follows SunOS here. */
+
+#ifndef PTRACE_GETREGS
+#define PTRACE_GETREGS PT_GETREGS
+#endif
+
+#ifndef PTRACE_SETREGS
+#define PTRACE_SETREGS PT_SETREGS
+#endif
+
+#ifndef PTRACE_GETFPREGS
+#define PTRACE_GETFPREGS PT_GETFPREGS
+#endif
+
+#ifndef PTRACE_SETFPREGS
+#define PTRACE_SETFPREGS PT_SETFPREGS
+#endif
+
+/* Register set description. */
+const struct sparc_gregset *sparc_gregset;
+void (*sparc_supply_gregset) (const struct sparc_gregset *,
+ struct regcache *, int , const void *);
+void (*sparc_collect_gregset) (const struct sparc_gregset *,
+ const struct regcache *, int, void *);
+void (*sparc_supply_fpregset) (struct regcache *, int , const void *);
+void (*sparc_collect_fpregset) (const struct regcache *, int , void *);
+int (*sparc_gregset_supplies_p) (struct gdbarch *, int);
+int (*sparc_fpregset_supplies_p) (struct gdbarch *, int);
+
+/* Determine whether `gregset_t' contains register REGNUM. */
+
+int
+sparc32_gregset_supplies_p (struct gdbarch *gdbarch, int regnum)
+{
+ /* Integer registers. */
+ if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_G7_REGNUM)
+ || (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM)
+ || (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_L7_REGNUM)
+ || (regnum >= SPARC_I0_REGNUM && regnum <= SPARC_I7_REGNUM))
+ return 1;
+
+ /* Control registers. */
+ if (regnum == SPARC32_PC_REGNUM
+ || regnum == SPARC32_NPC_REGNUM
+ || regnum == SPARC32_PSR_REGNUM
+ || regnum == SPARC32_Y_REGNUM)
+ return 1;
+
+ return 0;
+}
+
+/* Determine whether `fpregset_t' contains register REGNUM. */
+
+int
+sparc32_fpregset_supplies_p (struct gdbarch *gdbarch, int regnum)
+{
+ /* Floating-point registers. */
+ if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM)
+ return 1;
+
+ /* Control registers. */
+ if (regnum == SPARC32_FSR_REGNUM)
+ return 1;