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* m68kbsd-nat.c: Include "gdbcore.h", <sys/types.h>,

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<machine/pcb.h> and "bsd-kvm.h".
(PCB_REGS_FP, PCB_REGS_SP): Define if not already defined.
(m68kbsd_supply_pcb): New function.
(_initialize_m68kbsd_nat): New prototype and function.
* Makefile.in (m68kbsd-nat.o): Update dependencies.
* config/m68k/nbsdelf.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.
* config/m68k/obsd.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.
This commit is contained in:
Mark Kettenis 2004-07-03 15:14:48 +00:00
parent fdb1bf9d27
commit cb162ff6d2
5 changed files with 78 additions and 4 deletions
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11
gdb/ChangeLog
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@ -1,5 +1,16 @@
2004-07-03 Mark Kettenis <kettenis@gnu.org>
* m68kbsd-nat.c: Include "gdbcore.h", <sys/types.h>,
<machine/pcb.h> and "bsd-kvm.h".
(PCB_REGS_FP, PCB_REGS_SP): Define if not already defined.
(m68kbsd_supply_pcb): New function.
(_initialize_m68kbsd_nat): New prototype and function.
* Makefile.in (m68kbsd-nat.o): Update dependencies.
* config/m68k/nbsdelf.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.
* config/m68k/obsd.mh (NATDEPFILES): Add bsd-kvm.o.
(LOADLIBES): New variable.
* bsd-kvm.c (bsd_kvm_cmdlist): Remove unecessary initialization.
2004-07-03 Mark Kettenis <kettenis@gnu.org>

4
gdb/Makefile.in
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@ -2064,8 +2064,8 @@ m68klinux-tdep.o: m68klinux-tdep.c $(defs_h) $(gdbcore_h) $(doublest_h) \
$(floatformat_h) $(frame_h) $(target_h) $(gdb_string_h) \
$(gdbtypes_h) $(osabi_h) $(regcache_h) $(objfiles_h) $(symtab_h) \
$(m68k_tdep_h) $(trad_frame_h) $(frame_unwind_h)
m68kbsd-nat.o: m68kbsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
$(gdb_assert_h) $(m68k_tdep_h)
m68kbsd-nat.o: m68kbsd-nat.c $(defs_h) $(gdbcore_h) $(inferior_h) \
$(regcache_h) $(gdb_assert_h) $(m68k_tdep_h) $(bsd_kvm_h)
m68kbsd-tdep.o: m68kbsd-tdep.c $(defs_h) $(arch_utils_h) $(osabi_h) \
$(regcache_h) $(regset_h) $(gdb_assert_h) $(gdb_string_h) \
$(m68k_tdep_h) $(solib_svr4_h)

4
gdb/config/m68k/nbsdelf.mh
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@ -1,3 +1,5 @@
# Host: NetBSD/m68k ELF
NATDEPFILES= m68kbsd-nat.o fork-child.o infptrace.o inftarg.o
NATDEPFILES= m68kbsd-nat.o bsd-kvm.o fork-child.o infptrace.o inftarg.o
NAT_FILE= nm-nbsd.h
LOADLIBES= -lkvm

4
gdb/config/m68k/obsd.mh
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@ -1,4 +1,6 @@
# Host: OpenBSD/m68k
NATDEPFILES= m68kbsd-nat.o fork-child.o infptrace.o inftarg.o \
NATDEPFILES= m68kbsd-nat.o bsd-kvm.o fork-child.o infptrace.o inftarg.o \
solib.o solib-sunos.o
NAT_FILE= nm-nbsdaout.h
LOADLIBES= -lkvm

59
gdb/m68kbsd-nat.c
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@ -20,6 +20,7 @@
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "inferior.h"
#include "regcache.h"
@ -167,3 +168,61 @@ store_inferior_registers (int regnum)
perror_with_name ("Couldn't write floating point status");
}
}
/* Support for debugging kernel virtual memory images. */
#include <sys/types.h>
#include <machine/pcb.h>
#include "bsd-kvm.h"
/* OpenBSD doesn't have these. */
#ifndef PCB_REGS_FP
#define PCB_REGS_FP 10
#endif
#ifndef PCB_REGS_SP
#define PCB_REGS_SP 11
#endif
static int
m68kbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
{
int regnum, tmp;
int i = 0;
/* The following is true for NetBSD 1.6.2:
The pcb contains %d2...%d7, %a2...%a7 and %ps. This accounts for
all callee-saved registers. 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_regs[PCB_REGS_SP] == 0)
return 0;
for (regnum = M68K_D2_REGNUM; regnum <= M68K_D7_REGNUM; regnum++)
regcache_raw_supply (regcache, regnum, &pcb->pcb_regs[i++]);
for (regnum = M68K_A2_REGNUM; regnum <= M68K_SP_REGNUM; regnum++)
regcache_raw_supply (regcache, regnum, &pcb->pcb_regs[i++]);
tmp = pcb->pcb_ps & 0xffff;
regcache_raw_supply (regcache, M68K_PS_REGNUM, &tmp);
read_memory (pcb->pcb_regs[PCB_REGS_FP] + 4, (char *) &tmp, sizeof tmp);
regcache_raw_supply (regcache, M68K_PC_REGNUM, &tmp);
return 1;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_m68kbsd_nat (void);
void
_initialize_m68kbsd_nat (void)
{
/* Support debugging kernel virtual memory images. */
bsd_kvm_add_target (m68kbsd_supply_pcb);
}