* alpha-tdep.h (ALPHA_S0_REGNUM): New define.

* alphabsd-nat.c: Include <sys/types.h>, <sys/signal.h>,
<machine/pcb.h> and "bsd-kvm.h".
(alphabsd_supply_pcb): New function.
(_initialize_alphabsd_nat): Enable libkvm interface.
* Makefile.in (alphabsd-nat.o): Update dependencies.
* config/alpha/fbsd.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.
* config/alpha/nbsd.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 73ce895070176eeb87d0353f321253ef7bb72d60..c16fd241ad16888dbce7a179506f5e26bd9d2e4d 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,16 @@
+2006-07-31  Mark Kettenis  <kettenis@gnu.org>
+
+       * alpha-tdep.h (ALPHA_S0_REGNUM): New define.
+       * alphabsd-nat.c: Include <sys/types.h>, <sys/signal.h>,
+       <machine/pcb.h> and "bsd-kvm.h".
+       (alphabsd_supply_pcb): New function.
+       (_initialize_alphabsd_nat): Enable libkvm interface.
+       * Makefile.in (alphabsd-nat.o): Update dependencies.
+       * config/alpha/fbsd.mh (NATDEPFILES): Add bsd-kvm.o.
+       (LOADLIBES): New variable.
+       * config/alpha/nbsd.mh (NATDEPFILES): Add bsd-kvm.o.
+       (LOADLIBES): New variable.
+
 2006-07-31  Fred Fish  <fnf@specifix.com>
 
        * arm-tdep.c (arm_make_prologue_cache): Use FRAME_OBSTACK_ZALLOC

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index f6f24b7943c98e27a82e60d47dc10c060d06e477..3f3673f5d783104d384df4a2a33bd02e99029172 100644 (file)
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -1694,7 +1694,8 @@ aix-thread.o: aix-thread.c $(defs_h) $(gdb_assert_h) $(gdbthread_h) \
        $(target_h) $(inferior_h) $(regcache_h) $(gdbcmd_h) $(ppc_tdep_h) \
        $(gdb_string_h)
 alphabsd-nat.o: alphabsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
-       $(alpha_tdep_h) $(alphabsd_tdep_h) $(inf_ptrace_h) $(gregset_h)
+       $(alpha_tdep_h) $(alphabsd_tdep_h) $(inf_ptrace_h) $(gregset_h) \
+       $(bsd_kvm_h)
 alphabsd-tdep.o: alphabsd-tdep.c $(defs_h) $(alpha_tdep_h) \
        $(alphabsd_tdep_h)
 alphafbsd-tdep.o: alphafbsd-tdep.c $(defs_h) $(value_h) $(osabi_h) \

diff --git a/gdb/alpha-tdep.h b/gdb/alpha-tdep.h
index 69fc9d256cef0170aa5f83b6980319955fe0de68..13b40fa9ef5773f3271cf57ac280b0a5a814785b 100644 (file)
--- a/gdb/alpha-tdep.h
+++ b/gdb/alpha-tdep.h
@@ -40,6 +40,7 @@
 
 #define ALPHA_V0_REGNUM             0  /* Function integer return value */
 #define ALPHA_T7_REGNUM             8  /* Return address register for OSF/1 __add* */
+#define ALPHA_S0_REGNUM      9 /* First saved register */
 #define ALPHA_GCC_FP_REGNUM 15  /* Used by gcc as frame register */
 #define ALPHA_A0_REGNUM     16  /* Loc of first arg during a subr call */
 #define ALPHA_T9_REGNUM     23  /* Return address register for OSF/1 __div* */

diff --git a/gdb/alphabsd-nat.c b/gdb/alphabsd-nat.c
index 2b8c96d5db9cca011d52585ac4ea85e70ac86da5..8db1230634a97c2cf10d070d2d1d18920bd7c41f 100644 (file)
--- a/gdb/alphabsd-nat.c
+++ b/gdb/alphabsd-nat.c
@@ -1,6 +1,7 @@
 /* Native-dependent code for Alpha BSD's.
 
-   Copyright (C) 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006
+   Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -150,6 +151,40 @@ alphabsd_store_inferior_registers (int regno)
        perror_with_name (_("Couldn't write floating point status"));
     }
 }
+\f
+
+/* Support for debugging kernel virtual memory images.  */
+
+#include <sys/types.h>
+#include <sys/signal.h>
+#include <machine/pcb.h>
+
+#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;
+}
+\f
 
 /* Provide a prototype to silence -Wmissing-prototypes.  */
 void _initialize_alphabsd_nat (void);
@@ -163,4 +198,7 @@ _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);
 }

diff --git a/gdb/config/alpha/fbsd.mh b/gdb/config/alpha/fbsd.mh
index 9765ad9d7013848aa8bbb442b2ce717dc3627edc..e1894262cf1aacf34c06721d7243610fa3496608 100644 (file)
--- a/gdb/config/alpha/fbsd.mh
+++ b/gdb/config/alpha/fbsd.mh
@@ -1,4 +1,6 @@
 # Host: FreeBSD/alpha
 NATDEPFILES= fork-child.o inf-ptrace.o \
-       fbsd-nat.o alphabsd-nat.o \
+       fbsd-nat.o alphabsd-nat.o bsd-kvm.o \
        gcore.o corelow.o core-regset.o
+
+LOADLIBES= -lkvm

diff --git a/gdb/config/alpha/nbsd.mh b/gdb/config/alpha/nbsd.mh
index b6ab74b371dd6a3ac8d7aefa0a72cd8ef8e99779..b4185a78deb38e379e3b84a24bc1b16c6c5e55c7 100644 (file)
--- a/gdb/config/alpha/nbsd.mh
+++ b/gdb/config/alpha/nbsd.mh
@@ -1,2 +1,4 @@
 # Host: NetBSD/alpha
-NATDEPFILES= fork-child.o inf-ptrace.o alphabsd-nat.o
+NATDEPFILES= fork-child.o inf-ptrace.o alphabsd-nat.o bsd-kvm.o
+
+LOADLIBES= -lkvm