fixed optimzation for Atom

[platform/upstream/binutils.git] / gdb / amd64bsd-nat.c

diff --git a/gdb/amd64bsd-nat.c b/gdb/amd64bsd-nat.c
index c06c5bf..f994ec4 100644 (file)
--- a/gdb/amd64bsd-nat.c
+++ b/gdb/amd64bsd-nat.c
@@ -1,6 +1,6 @@
 /* Native-dependent code for AMD64 BSD's.
 
-   Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2003-2014 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -24,7 +24,6 @@
 
 /* We include <signal.h> to make sure `struct fxsave64' is defined on
    NetBSD, since NetBSD's <machine/reg.h> needs it.  */
-#include "gdb_assert.h"
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/ptrace.h>
@@ -32,6 +31,7 @@
 
 #include "amd64-tdep.h"
 #include "amd64-nat.h"
+#include "amd64bsd-nat.h"
 #include "inf-ptrace.h"
 \f
 
@@ -39,13 +39,16 @@
    for all registers (including the floating-point registers).  */
 
 static void
-amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
+amd64bsd_fetch_inferior_registers (struct target_ops *ops,
+                                  struct regcache *regcache, int regnum)
 {
-  if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+
+  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
     {
       struct reg regs;
 
-      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+      if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
                  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
        perror_with_name (_("Couldn't get registers"));
 
@@ -54,11 +57,11 @@ amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
        return;
     }
 
-  if (regnum == -1 || !amd64_native_gregset_supplies_p (regnum))
+  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
     {
       struct fpreg fpregs;
 
-      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+      if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
        perror_with_name (_("Couldn't get floating point status"));
 
@@ -70,19 +73,22 @@ amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
    this for all registers (including the floating-point registers).  */
 
 static void
-amd64bsd_store_inferior_registers (struct regcache *regcache, int regnum)
+amd64bsd_store_inferior_registers (struct target_ops *ops,
+                                  struct regcache *regcache, int regnum)
 {
-  if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+
+  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
     {
       struct reg regs;
 
-      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+      if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
                   (PTRACE_TYPE_ARG3) &regs, 0) == -1)
         perror_with_name (_("Couldn't get registers"));
 
       amd64_collect_native_gregset (regcache, &regs, regnum);
 
-      if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+      if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
                  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
         perror_with_name (_("Couldn't write registers"));
 
@@ -90,17 +96,17 @@ amd64bsd_store_inferior_registers (struct regcache *regcache, int regnum)
        return;
     }
 
-  if (regnum == -1 || !amd64_native_gregset_supplies_p (regnum))
+  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
     {
       struct fpreg fpregs;
 
-      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+      if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
        perror_with_name (_("Couldn't get floating point status"));
 
       amd64_collect_fxsave (regcache, regnum, &fpregs);
 
-      if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
+      if (ptrace (PT_SETFPREGS, ptid_get_pid (inferior_ptid),
                  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
        perror_with_name (_("Couldn't write floating point status"));
     }
@@ -119,3 +125,75 @@ amd64bsd_target (void)
   t->to_store_registers = amd64bsd_store_inferior_registers;
   return t;
 }
+\f
+
+/* Support for debug registers.  */
+
+#ifdef HAVE_PT_GETDBREGS
+
+static unsigned long
+amd64bsd_dr_get (ptid_t ptid, int regnum)
+{
+  struct dbreg dbregs;
+
+  if (ptrace (PT_GETDBREGS, ptid_get_pid (inferior_ptid),
+             (PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
+    perror_with_name (_("Couldn't read debug registers"));
+
+  return DBREG_DRX ((&dbregs), regnum);
+}
+
+static void
+amd64bsd_dr_set (int regnum, unsigned long value)
+{
+  struct dbreg dbregs;
+
+  if (ptrace (PT_GETDBREGS, ptid_get_pid (inferior_ptid),
+              (PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
+    perror_with_name (_("Couldn't get debug registers"));
+
+  /* For some mysterious reason, some of the reserved bits in the
+     debug control register get set.  Mask these off, otherwise the
+     ptrace call below will fail.  */
+  DBREG_DRX ((&dbregs), 7) &= ~(0xffffffff0000fc00);
+
+  DBREG_DRX ((&dbregs), regnum) = value;
+
+  if (ptrace (PT_SETDBREGS, ptid_get_pid (inferior_ptid),
+              (PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
+    perror_with_name (_("Couldn't write debug registers"));
+}
+
+void
+amd64bsd_dr_set_control (unsigned long control)
+{
+  amd64bsd_dr_set (7, control);
+}
+
+void
+amd64bsd_dr_set_addr (int regnum, CORE_ADDR addr)
+{
+  gdb_assert (regnum >= 0 && regnum <= 4);
+
+  amd64bsd_dr_set (regnum, addr);
+}
+
+CORE_ADDR
+amd64bsd_dr_get_addr (int regnum)
+{
+  return amd64bsd_dr_get (inferior_ptid, regnum);
+}
+
+unsigned long
+amd64bsd_dr_get_status (void)
+{
+  return amd64bsd_dr_get (inferior_ptid, 6);
+}
+
+unsigned long
+amd64bsd_dr_get_control (void)
+{
+  return amd64bsd_dr_get (inferior_ptid, 7);
+}
+
+#endif /* PT_GETDBREGS */