diff options
Diffstat (limited to 'gdb/ppcnbsd-nat.c')
| -rw-r--r-- | gdb/ppcnbsd-nat.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/gdb/ppcnbsd-nat.c b/gdb/ppcnbsd-nat.c index 7b22b12..ecc70d2 100644 --- a/gdb/ppcnbsd-nat.c +++ b/gdb/ppcnbsd-nat.c @@ -1,5 +1,5 @@ /* Native-dependent code for PowerPC's running NetBSD, for GDB. - Copyright 2002 Free Software Foundation, Inc. + Copyright 2002, 2004 Free Software Foundation, Inc. Contributed by Wasabi Systems, Inc. This file is part of GDB. @@ -22,10 +22,15 @@ #include <sys/types.h> #include <sys/ptrace.h> #include <machine/reg.h> +#include <machine/frame.h> +#include <machine/pcb.h> #include "defs.h" #include "inferior.h" #include "gdb_assert.h" +#include "gdbcore.h" +#include "regcache.h" +#include "bsd-kvm.h" #include "ppc-tdep.h" #include "ppcnbsd-tdep.h" @@ -134,3 +139,44 @@ store_inferior_registers (int regno) perror_with_name ("Couldn't set FP registers"); } } + +static int +ppcnbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) +{ + struct switchframe sf; + struct callframe cf; + struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); + int i; + + /* The stack pointer shouldn't be zero. */ + if (pcb->pcb_sp == 0) + return 0; + + read_memory (pcb->pcb_sp, (char *) &sf, sizeof sf); + regcache_raw_supply (regcache, tdep->ppc_cr_regnum, &sf.cr); + regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 2, &sf.fixreg2); + for (i = 0 ; i < 19 ; i++) + regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 13 + i, + &sf.fixreg[i]); + + read_memory(sf.sp, (char *)&cf, sizeof(cf)); + regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 30, &cf.r30); + regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 31, &cf.r31); + regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 1, &cf.sp); + + read_memory(cf.sp, (char *)&cf, sizeof(cf)); + regcache_raw_supply (regcache, tdep->ppc_lr_regnum, &cf.lr); + regcache_raw_supply (regcache, PC_REGNUM, &cf.lr); + + return 1; +} + +/* Provide a prototype to silence -Wmissing-prototypes. */ +void _initialize_ppcnbsd_nat (void); + +void +_initialize_ppcnbsd_nat (void) +{ + /* Support debugging kernel virtual memory images. */ + bsd_kvm_add_target (ppcnbsd_supply_pcb); +} |