X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Falphabsd-nat.c;h=00afa8a1a4acf6d09487661219d6aa25613c0c58;hb=9f1b45b0da430a7a7abf9e54acbe6f2ef9d3a763;hp=5792ecc5344c114e45f0bff20072ef0f83309594;hpb=0d6e4ad74ba863a72dcf63db2120a1565bd61ed2;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/alphabsd-nat.c b/gdb/alphabsd-nat.c
index 5792ecc534..00afa8a1a4 100644
--- a/gdb/alphabsd-nat.c
+++ b/gdb/alphabsd-nat.c
@@ -1,12 +1,12 @@
/* Native-dependent code for Alpha BSD's.
- Copyright 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2000-2014 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,
@@ -15,9 +15,7 @@
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see . */
#include "defs.h"
#include "inferior.h"
@@ -49,27 +47,28 @@ typedef struct fpreg fpregset_t;
supply/fill routines. */
void
-supply_gregset (gregset_t *gregsetp)
+supply_gregset (struct regcache *regcache, const gregset_t *gregsetp)
{
- alphabsd_supply_reg ((char *) gregsetp, -1);
+ alphabsd_supply_reg (regcache, (const char *) gregsetp, -1);
}
void
-fill_gregset (gregset_t *gregsetp, int regno)
+fill_gregset (const struct regcache *regcache, gregset_t *gregsetp, int regno)
{
- alphabsd_fill_reg ((char *) gregsetp, regno);
+ alphabsd_fill_reg (regcache, (char *) gregsetp, regno);
}
void
-supply_fpregset (fpregset_t *fpregsetp)
+supply_fpregset (struct regcache *regcache, const fpregset_t *fpregsetp)
{
- alphabsd_supply_fpreg ((char *) fpregsetp, -1);
+ alphabsd_supply_fpreg (regcache, (const char *) fpregsetp, -1);
}
void
-fill_fpregset (fpregset_t *fpregsetp, int regno)
+fill_fpregset (const struct regcache *regcache,
+ fpregset_t *fpregsetp, int regno)
{
- alphabsd_fill_fpreg ((char *) fpregsetp, regno);
+ alphabsd_fill_fpreg (regcache, (char *) fpregsetp, regno);
}
/* Determine if PT_GETREGS fetches this register. */
@@ -85,30 +84,32 @@ getregs_supplies (int regno)
for all registers (including the floating point registers). */
static void
-alphabsd_fetch_inferior_registers (int regno)
+alphabsd_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
if (regno == -1 || getregs_supplies (regno))
{
struct reg gregs;
- if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) &gregs, 0) == -1)
perror_with_name (_("Couldn't get registers"));
- alphabsd_supply_reg ((char *) &gregs, regno);
+ alphabsd_supply_reg (regcache, (char *) &gregs, regno);
if (regno != -1)
return;
}
- if (regno == -1 || regno >= FP0_REGNUM)
+ if (regno == -1
+ || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
{
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"));
- alphabsd_supply_fpreg ((char *) &fpregs, regno);
+ alphabsd_supply_fpreg (regcache, (char *) &fpregs, regno);
}
}
@@ -116,18 +117,19 @@ alphabsd_fetch_inferior_registers (int regno)
this for all registers (including the floating point registers). */
static void
-alphabsd_store_inferior_registers (int regno)
+alphabsd_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
if (regno == -1 || getregs_supplies (regno))
{
struct reg gregs;
- if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) &gregs, 0) == -1)
perror_with_name (_("Couldn't get registers"));
- alphabsd_fill_reg ((char *) &gregs, regno);
+ alphabsd_fill_reg (regcache, (char *) &gregs, regno);
- if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) &gregs, 0) == -1)
perror_with_name (_("Couldn't write registers"));
@@ -135,21 +137,55 @@ alphabsd_store_inferior_registers (int regno)
return;
}
- if (regno == -1 || regno >= FP0_REGNUM)
+ if (regno == -1
+ || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
{
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"));
- alphabsd_fill_fpreg ((char *) &fpregs, regno);
+ alphabsd_fill_fpreg (regcache, (char *) &fpregs, regno);
- 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"));
}
}
+
+
+/* Support for debugging kernel virtual memory images. */
+
+#include
+#include
+
+#include "bsd-kvm.h"
+
+static int
+alphabsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+ int regnum;
+
+ /* The following is true for OpenBSD 3.9:
+
+ The pcb contains the register state at the context switch inside
+ cpu_switch(). */
+
+ /* The stack pointer shouldn't be zero. */
+ if (pcb->pcb_hw.apcb_ksp == 0)
+ return 0;
+
+ regcache_raw_supply (regcache, ALPHA_SP_REGNUM, &pcb->pcb_hw.apcb_ksp);
+
+ for (regnum = ALPHA_S0_REGNUM; regnum < ALPHA_A0_REGNUM; regnum++)
+ regcache_raw_supply (regcache, regnum,
+ &pcb->pcb_context[regnum - ALPHA_S0_REGNUM]);
+ regcache_raw_supply (regcache, ALPHA_RA_REGNUM, &pcb->pcb_context[7]);
+
+ return 1;
+}
+
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_alphabsd_nat (void);
@@ -163,4 +199,7 @@ _initialize_alphabsd_nat (void)
t->to_fetch_registers = alphabsd_fetch_inferior_registers;
t->to_store_registers = alphabsd_store_inferior_registers;
add_target (t);
+
+ /* Support debugging kernel virtual memory images. */
+ bsd_kvm_add_target (alphabsd_supply_pcb);
}