gas: Add md_generic_table_relax_frag

[deliverable/binutils-gdb.git] / gdb / alpha-linux-nat.c

diff --git a/gdb/alpha-linux-nat.c b/gdb/alpha-linux-nat.c
index c8559921ec761cca12c19d54c2592824bd0bb04e..9f83ad7cc6e576741b6931f7853355940804a996 100644 (file)
--- a/gdb/alpha-linux-nat.c
+++ b/gdb/alpha-linux-nat.c
@@ -1,12 +1,11 @@
 /* Low level Alpha GNU/Linux interface, for GDB when running native.
-   Copyright (C) 2005
-   Free Software Foundation, Inc.
+   Copyright (C) 2005-2019 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
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,18 +14,96 @@
    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., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "target.h"
-#include "linux-nat.h"
+#include "regcache.h"
+#include "linux-nat-trad.h"
 
-void _initialialize_alpha_linux_nat (void);
+#include "alpha-tdep.h"
+#include "gdbarch.h"
+
+#include "nat/gdb_ptrace.h"
+#include <alpha/ptrace.h>
+
+#include <sys/procfs.h>
+#include "gregset.h"
+
+/* The address of UNIQUE for ptrace.  */
+#define ALPHA_UNIQUE_PTRACE_ADDR 65
+
+class alpha_linux_nat_target final : public linux_nat_trad_target
+{
+protected:
+  /* Override linux_nat_trad_target methods.  */
+  CORE_ADDR register_u_offset (struct gdbarch *gdbarch,
+                              int regno, int store_p) override;
+};
+
+static alpha_linux_nat_target the_alpha_linux_nat_target;
+
+/* See the comment in m68k-tdep.c regarding the utility of these
+   functions.  */
+
+void
+supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
+{
+  const long *regp = (const long *)gregsetp;
+
+  /* PC is in slot 32, UNIQUE is in slot 33.  */
+  alpha_supply_int_regs (regcache, -1, regp, regp + 31, regp + 32);
+}
+
+void
+fill_gregset (const struct regcache *regcache,
+             gdb_gregset_t *gregsetp, int regno)
+{
+  long *regp = (long *)gregsetp;
+
+  /* PC is in slot 32, UNIQUE is in slot 33.  */
+  alpha_fill_int_regs (regcache, regno, regp, regp + 31, regp + 32);
+}
+
+/* Now we do the same thing for floating-point registers.
+   Again, see the comments in m68k-tdep.c.  */
+
+void
+supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
+{
+  const long *regp = (const long *)fpregsetp;
+
+  /* FPCR is in slot 32.  */
+  alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
+}
+
+void
+fill_fpregset (const struct regcache *regcache,
+              gdb_fpregset_t *fpregsetp, int regno)
+{
+  long *regp = (long *)fpregsetp;
+
+  /* FPCR is in slot 32.  */
+  alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
+}
+
+CORE_ADDR
+alpha_linux_nat_target::register_u_offset (struct gdbarch *gdbarch,
+                                          int regno, int store_p)
+{
+  if (regno == gdbarch_pc_regnum (gdbarch))
+    return PC;
+  if (regno == ALPHA_UNIQUE_REGNUM)
+    return ALPHA_UNIQUE_PTRACE_ADDR;
+  if (regno < gdbarch_fp0_regnum (gdbarch))
+    return GPR_BASE + regno;
+  else
+    return FPR_BASE + regno - gdbarch_fp0_regnum (gdbarch);
+}
 
 void
 _initialize_alpha_linux_nat (void)
 {
-  add_target (linux_target ());
+  linux_target = &the_alpha_linux_nat_target;
+  add_inf_child_target (&the_alpha_linux_nat_target);
 }