* sparcnbsd-nat.c: Include "gdbcore.h", "regcache.h",

<sys/types.h>, <machine/pcb.h> and "bsd-kvm.h".
(sparc32nbsd_supply_pcb): New function.
(_initialize_sparcnbsd_nat): Enable libkvm interface.
* Makefile.in (sparcnbsd-nat.o): Update dependencies.
* config/sparc/nbsdelf.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f95f5335fd25c78a53d3d620384649d05f2b5ef3..30772fbabd27d31fd2c0c107d15ea2158fb1f3b2 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,13 @@
+2004-05-23  Mark Kettenis  <kettenis@gnu.org>
+
+       * sparcnbsd-nat.c: Include "gdbcore.h", "regcache.h",
+       <sys/types.h>, <machine/pcb.h> and "bsd-kvm.h".
+       (sparc32nbsd_supply_pcb): New function.
+       (_initialize_sparcnbsd_nat): Enable libkvm interface.
+       * Makefile.in (sparcnbsd-nat.o): Update dependencies.
+       * config/sparc/nbsdelf.mh (NATDEPFILES): Add bsd-kvm.o.
+       (LOADLIBES): New variable.
+
 2004-05-22  Mark Kettenis  <kettenis@gnu.org>
 
        * bsd-kvm.c, bsd-kvm.h: New files.

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index f10df4e44e9352937da8318506f73e26edf58acd..d2ef0bb9f2cc9f1b835f6e55f65ad4850e50d6f6 100644 (file)
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -2394,7 +2394,8 @@ sparc-linux-tdep.o: sparc-linux-tdep.c $(defs_h) $(floatformat_h) $(frame_h) \
 sparc-nat.o: sparc-nat.c $(defs_h) $(inferior_h) $(regcache_h) $(target_h) \
        $(gdb_assert_h) $(gdb_string_h) $(gdb_wait_h) $(sparc_tdep_h) \
        $(sparc_nat_h)
-sparcnbsd-nat.o: sparcnbsd-nat.c $(defs_h) $(sparc_tdep_h) $(sparc_nat_h)
+sparcnbsd-nat.o: sparcnbsd-nat.c $(defs_h) $(gdbcore_h) $(regcache_h) \
+       $(sparc_tdep_h) $(sparc_nat_h) $(bsd_kvm_h)
 sparcnbsd-tdep.o: sparcnbsd-tdep.c $(defs_h) $(floatformat_h) $(frame_h) \
        $(frame_unwind_h) $(gdbcore_h) $(osabi_h) $(regcache_h) $(regset_h) \
        $(solib_svr4_h) $(symtab_h) $(trad_frame_h) $(gdb_assert_h) \

diff --git a/gdb/config/sparc/nbsdelf.mh b/gdb/config/sparc/nbsdelf.mh
index 45309ecaec0800b0a7ccd990bee0b3cc72e91b5f..611a6a4d2adb0b05a5edb8185f8f669b3b1ff74c 100644 (file)
--- a/gdb/config/sparc/nbsdelf.mh
+++ b/gdb/config/sparc/nbsdelf.mh
@@ -1,4 +1,6 @@
 # Host: NetBSD/sparc ELF
-NATDEPFILES= sparc-nat.o sparcnbsd-nat.o \
+NATDEPFILES= sparc-nat.o sparcnbsd-nat.o bsd-kvm.o \
        fork-child.o infptrace.o inftarg.o
 NAT_FILE= nm-nbsd.h
+
+LOADLIBES= -lkvm

diff --git a/gdb/sparcnbsd-nat.c b/gdb/sparcnbsd-nat.c
index 9038ea334b641dcdc355e14357df8f14e2b55f76..01089eeef327be4f4b5dbcdff4ce092458a5f8e7 100644 (file)
--- a/gdb/sparcnbsd-nat.c
+++ b/gdb/sparcnbsd-nat.c
@@ -20,10 +20,44 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "defs.h"
+#include "gdbcore.h"
+#include "regcache.h"
 
 #include "sparc-tdep.h"
 #include "sparc-nat.h"
 
+/* Support for debugging kernel virtual memory images.  */
+
+#include <sys/types.h>
+#include <machine/pcb.h>
+
+#include "bsd-kvm.h"
+
+static int
+sparc32nbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+  /* The following is true for NetBSD 1.6.2:
+
+     The pcb contains %sp, %sp, %psr and %wim.  From this information
+     we reconstruct the register state as it would look when we just
+     returned from cpu_switch().  */
+
+  /* The stack pointer shouldn't be zero.  */
+  if (pcb->pcb_sp == 0)
+    return 0;
+
+  regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
+  regcache_raw_supply (regcache, SPARC_O7_REGNUM, &pcb->pcb_pc);
+  regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, &pcb->pcb_psr);
+  regcache_raw_supply (regcache, SPARC32_WIM_REGNUM, &pcb->pcb_wim);
+  regcache_raw_supply (regcache, SPARC32_PC_REGNUM, &pcb->pcb_pc);
+
+  sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
+
+  return 1;
+}
+\f
+
 /* Provide a prototype to silence -Wmissing-prototypes.  */
 void _initialize_sparcnbsd_nat (void);
 
@@ -31,4 +65,7 @@ void
 _initialize_sparcnbsd_nat (void)
 {
   sparc_gregset = &sparc32nbsd_gregset;
+
+  /* Support debugging kernel virtual memory images.  */
+  bsd_kvm_add_target (sparc32nbsd_supply_pcb);
 }