/* Native-dependent code for BSD Unix running on ARM's, for GDB.
- Copyright 1988, 1989, 1991, 1992, 1994, 1996, 1999, 2002
+
+ Copyright 1988, 1989, 1991, 1992, 1994, 1996, 1999, 2002, 2004
Free Software Foundation, Inc.
This file is part of GDB.
Boston, MA 02111-1307, USA. */
#include "defs.h"
+#include "gdbcore.h"
+#include "inferior.h"
+#include "regcache.h"
+#include "target.h"
-#include "arm-tdep.h"
-
-#ifdef FETCH_INFERIOR_REGISTERS
+#include "gdb_string.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include <machine/frame.h>
-#include "inferior.h"
-#include "regcache.h"
-void
-fetch_inferior_registers (regno)
- int regno;
+#include "arm-tdep.h"
+#include "inf-ptrace.h"
+
+extern int arm_apcs_32;
+
+static void
+supply_gregset (struct reg *gregset)
+{
+ int regno;
+ CORE_ADDR r_pc;
+
+ /* Integer registers. */
+ for (regno = ARM_A1_REGNUM; regno < ARM_SP_REGNUM; regno++)
+ regcache_raw_supply (current_regcache, regno, (char *) &gregset->r[regno]);
+
+ regcache_raw_supply (current_regcache, ARM_SP_REGNUM,
+ (char *) &gregset->r_sp);
+ regcache_raw_supply (current_regcache, ARM_LR_REGNUM,
+ (char *) &gregset->r_lr);
+ /* This is ok: we're running native... */
+ r_pc = ADDR_BITS_REMOVE (gregset->r_pc);
+ regcache_raw_supply (current_regcache, ARM_PC_REGNUM, (char *) &r_pc);
+
+ if (arm_apcs_32)
+ regcache_raw_supply (current_regcache, ARM_PS_REGNUM,
+ (char *) &gregset->r_cpsr);
+ else
+ regcache_raw_supply (current_regcache, ARM_PS_REGNUM,
+ (char *) &gregset->r_pc);
+}
+
+static void
+supply_fparegset (struct fpreg *fparegset)
+{
+ int regno;
+
+ for (regno = ARM_F0_REGNUM; regno <= ARM_F7_REGNUM; regno++)
+ regcache_raw_supply (current_regcache, regno,
+ (char *) &fparegset->fpr[regno - ARM_F0_REGNUM]);
+
+ regcache_raw_supply (current_regcache, ARM_FPS_REGNUM,
+ (char *) &fparegset->fpr_fpsr);
+}
+
+static void
+fetch_register (int regno)
{
struct reg inferior_registers;
- struct fpreg inferior_fpregisters;
-
- ptrace (PT_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &inferior_registers, 0);
- memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers,
- 16 * sizeof (unsigned int));
- memcpy (®isters[REGISTER_BYTE (ARM_PS_REGNUM)],
- &inferior_registers.r_cpsr,
- sizeof (unsigned int));
- ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
- memcpy (®isters[REGISTER_BYTE (ARM_F0_REGNUM)],
- &inferior_fpregisters.fpr[0],
- 8 * sizeof (fp_reg_t));
- memcpy (®isters[REGISTER_BYTE (ARM_FPS_REGNUM)],
- &inferior_fpregisters.fpr_fpsr, sizeof (unsigned int));
- registers_fetched ();
+ int ret;
+
+ ret = ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_registers, 0);
+
+ if (ret < 0)
+ {
+ warning (_("unable to fetch general register"));
+ return;
+ }
+
+ switch (regno)
+ {
+ case ARM_SP_REGNUM:
+ regcache_raw_supply (current_regcache, ARM_SP_REGNUM,
+ (char *) &inferior_registers.r_sp);
+ break;
+
+ case ARM_LR_REGNUM:
+ regcache_raw_supply (current_regcache, ARM_LR_REGNUM,
+ (char *) &inferior_registers.r_lr);
+ break;
+
+ case ARM_PC_REGNUM:
+ /* This is ok: we're running native... */
+ inferior_registers.r_pc = ADDR_BITS_REMOVE (inferior_registers.r_pc);
+ regcache_raw_supply (current_regcache, ARM_PC_REGNUM,
+ (char *) &inferior_registers.r_pc);
+ break;
+
+ case ARM_PS_REGNUM:
+ if (arm_apcs_32)
+ regcache_raw_supply (current_regcache, ARM_PS_REGNUM,
+ (char *) &inferior_registers.r_cpsr);
+ else
+ regcache_raw_supply (current_regcache, ARM_PS_REGNUM,
+ (char *) &inferior_registers.r_pc);
+ break;
+
+ default:
+ regcache_raw_supply (current_regcache, regno,
+ (char *) &inferior_registers.r[regno]);
+ break;
+ }
}
-void
-store_inferior_registers (regno)
- int regno;
+static void
+fetch_regs (void)
{
struct reg inferior_registers;
+ int ret;
+ int regno;
+
+ ret = ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_registers, 0);
+
+ if (ret < 0)
+ {
+ warning (_("unable to fetch general registers"));
+ return;
+ }
+
+ supply_gregset (&inferior_registers);
+}
+
+static void
+fetch_fp_register (int regno)
+{
+ struct fpreg inferior_fp_registers;
+ int ret;
+
+ ret = ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
+
+ if (ret < 0)
+ {
+ warning (_("unable to fetch floating-point register"));
+ return;
+ }
+
+ switch (regno)
+ {
+ case ARM_FPS_REGNUM:
+ regcache_raw_supply (current_regcache, ARM_FPS_REGNUM,
+ (char *) &inferior_fp_registers.fpr_fpsr);
+ break;
+
+ default:
+ regcache_raw_supply (current_regcache, regno,
+ (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
+ break;
+ }
+}
+
+static void
+fetch_fp_regs (void)
+{
+ struct fpreg inferior_fp_registers;
+ int ret;
+ int regno;
+
+ ret = ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
- memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)],
- 16 * sizeof (unsigned int));
- memcpy (&inferior_registers.r_cpsr,
- ®isters[REGISTER_BYTE (ARM_PS_REGNUM)],
- sizeof (unsigned int));
- ptrace (PT_SETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &inferior_registers, 0);
+ if (ret < 0)
+ {
+ warning (_("unable to fetch general registers"));
+ return;
+ }
- /* XXX Set FP regs. */
+ supply_fparegset (&inferior_fp_registers);
+}
+
+static void
+armnbsd_fetch_registers (int regno)
+{
+ if (regno >= 0)
+ {
+ if (regno < ARM_F0_REGNUM || regno > ARM_FPS_REGNUM)
+ fetch_register (regno);
+ else
+ fetch_fp_register (regno);
+ }
+ else
+ {
+ fetch_regs ();
+ fetch_fp_regs ();
+ }
+}
+
+
+static void
+store_register (int regno)
+{
+ struct reg inferior_registers;
+ int ret;
+
+ ret = ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_registers, 0);
+
+ if (ret < 0)
+ {
+ warning (_("unable to fetch general registers"));
+ return;
+ }
+
+ switch (regno)
+ {
+ case ARM_SP_REGNUM:
+ regcache_raw_collect (current_regcache, ARM_SP_REGNUM,
+ (char *) &inferior_registers.r_sp);
+ break;
+
+ case ARM_LR_REGNUM:
+ regcache_raw_collect (current_regcache, ARM_LR_REGNUM,
+ (char *) &inferior_registers.r_lr);
+ break;
+
+ case ARM_PC_REGNUM:
+ if (arm_apcs_32)
+ regcache_raw_collect (current_regcache, ARM_PC_REGNUM,
+ (char *) &inferior_registers.r_pc);
+ else
+ {
+ unsigned pc_val;
+
+ regcache_raw_collect (current_regcache, ARM_PC_REGNUM,
+ (char *) &pc_val);
+
+ pc_val = ADDR_BITS_REMOVE (pc_val);
+ inferior_registers.r_pc
+ ^= ADDR_BITS_REMOVE (inferior_registers.r_pc);
+ inferior_registers.r_pc |= pc_val;
+ }
+ break;
+
+ case ARM_PS_REGNUM:
+ if (arm_apcs_32)
+ regcache_raw_collect (current_regcache, ARM_PS_REGNUM,
+ (char *) &inferior_registers.r_cpsr);
+ else
+ {
+ unsigned psr_val;
+
+ regcache_raw_collect (current_regcache, ARM_PS_REGNUM,
+ (char *) &psr_val);
+
+ psr_val ^= ADDR_BITS_REMOVE (psr_val);
+ inferior_registers.r_pc = ADDR_BITS_REMOVE (inferior_registers.r_pc);
+ inferior_registers.r_pc |= psr_val;
+ }
+ break;
+
+ default:
+ regcache_raw_collect (current_regcache, regno,
+ (char *) &inferior_registers.r[regno]);
+ break;
+ }
+
+ ret = ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_registers, 0);
+
+ if (ret < 0)
+ warning (_("unable to write register %d to inferior"), regno);
+}
+
+static void
+store_regs (void)
+{
+ struct reg inferior_registers;
+ int ret;
+ int regno;
+
+
+ for (regno = ARM_A1_REGNUM; regno < ARM_SP_REGNUM; regno++)
+ regcache_raw_collect (current_regcache, regno,
+ (char *) &inferior_registers.r[regno]);
+
+ regcache_raw_collect (current_regcache, ARM_SP_REGNUM,
+ (char *) &inferior_registers.r_sp);
+ regcache_raw_collect (current_regcache, ARM_LR_REGNUM,
+ (char *) &inferior_registers.r_lr);
+
+ if (arm_apcs_32)
+ {
+ regcache_raw_collect (current_regcache, ARM_PC_REGNUM,
+ (char *) &inferior_registers.r_pc);
+ regcache_raw_collect (current_regcache, ARM_PS_REGNUM,
+ (char *) &inferior_registers.r_cpsr);
+ }
+ else
+ {
+ unsigned pc_val;
+ unsigned psr_val;
+
+ regcache_raw_collect (current_regcache, ARM_PC_REGNUM,
+ (char *) &pc_val);
+ regcache_raw_collect (current_regcache, ARM_PS_REGNUM,
+ (char *) &psr_val);
+
+ pc_val = ADDR_BITS_REMOVE (pc_val);
+ psr_val ^= ADDR_BITS_REMOVE (psr_val);
+
+ inferior_registers.r_pc = pc_val | psr_val;
+ }
+
+ ret = ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_registers, 0);
+
+ if (ret < 0)
+ warning (_("unable to store general registers"));
+}
+
+static void
+store_fp_register (int regno)
+{
+ struct fpreg inferior_fp_registers;
+ int ret;
+
+ ret = ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
+
+ if (ret < 0)
+ {
+ warning (_("unable to fetch floating-point registers"));
+ return;
+ }
+
+ switch (regno)
+ {
+ case ARM_FPS_REGNUM:
+ regcache_raw_collect (current_regcache, ARM_FPS_REGNUM,
+ (char *) &inferior_fp_registers.fpr_fpsr);
+ break;
+
+ default:
+ regcache_raw_collect (current_regcache, regno,
+ (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
+ break;
+ }
+
+ ret = ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
+
+ if (ret < 0)
+ warning (_("unable to write register %d to inferior"), regno);
+}
+
+static void
+store_fp_regs (void)
+{
+ struct fpreg inferior_fp_registers;
+ int ret;
+ int regno;
+
+
+ for (regno = ARM_F0_REGNUM; regno <= ARM_F7_REGNUM; regno++)
+ regcache_raw_collect (current_regcache, regno,
+ (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
+
+ regcache_raw_collect (current_regcache, ARM_FPS_REGNUM,
+ (char *) &inferior_fp_registers.fpr_fpsr);
+
+ ret = ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
+
+ if (ret < 0)
+ warning (_("unable to store floating-point registers"));
+}
+
+static void
+armnbsd_store_registers (int regno)
+{
+ if (regno >= 0)
+ {
+ if (regno < ARM_F0_REGNUM || regno > ARM_FPS_REGNUM)
+ store_register (regno);
+ else
+ store_fp_register (regno);
+ }
+ else
+ {
+ store_regs ();
+ store_fp_regs ();
+ }
}
struct md_core
struct fpreg freg;
};
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- CORE_ADDR ignore;
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
+ int which, CORE_ADDR ignore)
{
struct md_core *core_reg = (struct md_core *) core_reg_sect;
+ int regno;
+ CORE_ADDR r_pc;
- /* integer registers */
- memcpy (®isters[REGISTER_BYTE (0)], &core_reg->intreg,
- sizeof (struct reg));
- /* floating point registers */
- /* XXX */
+ supply_gregset (&core_reg->intreg);
+ supply_fparegset (&core_reg->freg);
}
-#else
-#error Not FETCH_INFERIOR_REGISTERS
-#endif /* !FETCH_INFERIOR_REGISTERS */
+static void
+fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size,
+ int which, CORE_ADDR ignore)
+{
+ struct reg gregset;
+ struct fpreg fparegset;
-int
-get_longjmp_target (CORE_ADDR *addr)
+ switch (which)
+ {
+ case 0: /* Integer registers. */
+ if (core_reg_size != sizeof (struct reg))
+ warning (_("wrong size of register set in core file"));
+ else
+ {
+ /* The memcpy may be unnecessary, but we can't really be sure
+ of the alignment of the data in the core file. */
+ memcpy (&gregset, core_reg_sect, sizeof (gregset));
+ supply_gregset (&gregset);
+ }
+ break;
+
+ case 2:
+ if (core_reg_size != sizeof (struct fpreg))
+ warning (_("wrong size of FPA register set in core file"));
+ else
+ {
+ /* The memcpy may be unnecessary, but we can't really be sure
+ of the alignment of the data in the core file. */
+ memcpy (&fparegset, core_reg_sect, sizeof (fparegset));
+ supply_fparegset (&fparegset);
+ }
+ break;
+
+ default:
+ /* Don't know what kind of register request this is; just ignore it. */
+ break;
+ }
+}
+
+static struct core_fns arm_netbsd_core_fns =
+{
+ bfd_target_unknown_flavour, /* core_flovour. */
+ default_check_format, /* check_format. */
+ default_core_sniffer, /* core_sniffer. */
+ fetch_core_registers, /* core_read_registers. */
+ NULL
+};
+
+static struct core_fns arm_netbsd_elfcore_fns =
{
- return 0;
+ bfd_target_elf_flavour, /* core_flovour. */
+ default_check_format, /* check_format. */
+ default_core_sniffer, /* core_sniffer. */
+ fetch_elfcore_registers, /* core_read_registers. */
+ NULL
+};
+
+void
+_initialize_arm_netbsd_nat (void)
+{
+ struct target_ops *t;
+
+ t = inf_ptrace_target ();
+ t->to_fetch_registers = armnbsd_fetch_registers;
+ t->to_store_registers = armnbsd_store_registers;
+ add_target (t);
+
+ deprecated_add_core_fns (&arm_netbsd_core_fns);
+ deprecated_add_core_fns (&arm_netbsd_elfcore_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff