/* Low level Alpha GNU/Linux interface, for GDB when running native.
- Copyright (C) 2005, 2006, 2007 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,
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"
#include "alpha-tdep.h"
+#include "gdbarch.h"
-#include <sys/ptrace.h>
+#include "nat/gdb_ptrace.h"
#include <alpha/ptrace.h>
#include <sys/procfs.h>
#include "gregset.h"
-/* Given a pointer to either a gregset_t or fpregset_t, return a
- pointer to the first register. */
-#define ALPHA_REGSET_BASE(regsetp) ((long *) (regsetp))
-
-/* Given a pointer to a gregset_t, locate the UNIQUE value. */
-#define ALPHA_REGSET_UNIQUE(regsetp) ((long *)(regsetp) + 32)
-
/* 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.
- */
+/* See the comment in m68k-tdep.c regarding the utility of these
+ functions. */
void
-supply_gregset (gdb_gregset_t *gregsetp)
+supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
{
- long *regp = ALPHA_REGSET_BASE (gregsetp);
- void *unique = ALPHA_REGSET_UNIQUE (gregsetp);
+ const long *regp = (const long *)gregsetp;
- /* PC is in slot 32. */
- alpha_supply_int_regs (-1, regp, regp + 31, unique);
+ /* PC is in slot 32, UNIQUE is in slot 33. */
+ alpha_supply_int_regs (regcache, -1, regp, regp + 31, regp + 32);
}
void
-fill_gregset (gdb_gregset_t *gregsetp, int regno)
+fill_gregset (const struct regcache *regcache,
+ gdb_gregset_t *gregsetp, int regno)
{
- long *regp = ALPHA_REGSET_BASE (gregsetp);
- void *unique = ALPHA_REGSET_UNIQUE (gregsetp);
+ long *regp = (long *)gregsetp;
- /* PC is in slot 32. */
- alpha_fill_int_regs (regno, regp, regp + 31, unique);
+ /* 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.
- */
+/* Now we do the same thing for floating-point registers.
+ Again, see the comments in m68k-tdep.c. */
void
-supply_fpregset (gdb_fpregset_t *fpregsetp)
+supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
{
- long *regp = ALPHA_REGSET_BASE (fpregsetp);
+ const long *regp = (const long *)fpregsetp;
/* FPCR is in slot 32. */
- alpha_supply_fp_regs (-1, regp, regp + 31);
+ alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
}
void
-fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
+fill_fpregset (const struct regcache *regcache,
+ gdb_fpregset_t *fpregsetp, int regno)
{
- long *regp = ALPHA_REGSET_BASE (fpregsetp);
+ long *regp = (long *)fpregsetp;
/* FPCR is in slot 32. */
- alpha_fill_fp_regs (regno, regp, regp + 31);
+ alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
}
-
-static CORE_ADDR
-alpha_linux_register_u_offset (int regno)
+CORE_ADDR
+alpha_linux_nat_target::register_u_offset (struct gdbarch *gdbarch,
+ int regno, int store_p)
{
- if (regno == PC_REGNUM)
+ if (regno == gdbarch_pc_regnum (gdbarch))
return PC;
if (regno == ALPHA_UNIQUE_REGNUM)
return ALPHA_UNIQUE_PTRACE_ADDR;
- if (regno < FP0_REGNUM)
+ if (regno < gdbarch_fp0_regnum (gdbarch))
return GPR_BASE + regno;
else
- return FPR_BASE + regno - FP0_REGNUM;
+ return FPR_BASE + regno - gdbarch_fp0_regnum (gdbarch);
}
-void _initialialize_alpha_linux_nat (void);
-
void
_initialize_alpha_linux_nat (void)
{
- linux_nat_add_target (linux_trad_target (alpha_linux_register_u_offset));
+ linux_target = &the_alpha_linux_nat_target;
+ add_inf_child_target (&the_alpha_linux_nat_target);
}
projects / deliverable / binutils-gdb.git / blobdiff