2006-10-08 Paul Brook <paul@codesourcery.com>

[binutils-gdb.git] / gdb / hppabsd-nat.c

diff --git a/gdb/hppabsd-nat.c b/gdb/hppabsd-nat.c
index 98293a004401a0afc2fba2333a091717765ef134..0ffc01815d779310327715923cdbac189ae650de 100644 (file)
--- a/gdb/hppabsd-nat.c
+++ b/gdb/hppabsd-nat.c
@@ -1,6 +1,6 @@
 /* Native-dependent code for HP PA-RISC BSD's.
 
-   Copyright 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -16,8 +16,8 @@
 
    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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #include "defs.h"
 #include "inferior.h"
@@ -37,6 +37,12 @@ hppabsd_gregset_supplies_p (int regnum)
   return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_PCOQ_TAIL_REGNUM);
 }
 
+static int
+hppabsd_fpregset_supplies_p (int regnum)
+{
+  return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
+}
+
 /* Supply the general-purpose registers stored in GREGS to REGCACHE.  */
 
 static void
@@ -53,6 +59,22 @@ hppabsd_supply_gregset (struct regcache *regcache, const void *gregs)
   regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
 }
 
+/* Supply the floating-point registers stored in FPREGS to REGCACHE.  */
+
+static void
+hppabsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
+{
+  const char *regs = fpregs;
+  int regnum;
+
+  for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
+       regnum += 2, regs += 8)
+    {
+      regcache_raw_supply (regcache, regnum, regs);
+      regcache_raw_supply (regcache, regnum + 1, regs + 4);
+    }
+}
+
 /* Collect the general-purpose registers from REGCACHE and store them
    in GREGS.  */
 
@@ -76,6 +98,26 @@ hppabsd_collect_gregset (const struct regcache *regcache,
   if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
     regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
 }
+
+/* Collect the floating-point registers from REGCACHE and store them
+   in FPREGS.  */
+
+static void
+hppabsd_collect_fpregset (struct regcache *regcache,
+                         void *fpregs, int regnum)
+{
+  char *regs = fpregs;
+  int i;
+
+  for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
+    {
+      if (regnum == -1 || regnum == i || regnum == i + 1)
+       {
+         regcache_raw_collect (regcache, i, regs);
+         regcache_raw_collect (regcache, i + 1, regs + 4);
+       }
+    }
+}
 \f
 
 /* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
@@ -96,6 +138,17 @@ hppabsd_fetch_registers (int regnum)
 
       hppabsd_supply_gregset (regcache, &regs);
     }
+
+  if (regnum == -1 || hppabsd_fpregset_supplies_p (regnum))
+    {
+      struct fpreg fpregs;
+
+      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't get floating point status"));
+
+      hppabsd_supply_fpregset (current_regcache, &fpregs);
+    }
 }
 
 /* Store register REGNUM back into the inferior.  If REGNUM is -1, do
@@ -118,6 +171,21 @@ hppabsd_store_registers (int regnum)
                  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
         perror_with_name (_("Couldn't write registers"));
     }
+
+  if (regnum == -1 || hppabsd_fpregset_supplies_p (regnum))
+    {
+      struct fpreg fpregs;
+
+      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't get floating point status"));
+
+      hppabsd_collect_fpregset (current_regcache, &fpregs, regnum);
+
+      if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't write floating point status"));
+    }
 }
 
 /* Provide a prototype to silence -Wmissing-prototypes.  */