old-cross-binutils/gdb/armnbsd-nat.c

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/* Native-dependent code for BSD Unix running on ARM's, for GDB.
* arm-tdep.h: New file. * arm-tdep.c: Include arm-tdep.h. (arm_addr_bits_remove, arm_smash_text_address, arm_saved_pc_after_call) (arm_skip_prologue, arm_call_dummy_words, arm_fix_call_dummy) (arm_print_float_info, arm_register_type, convert_to_extended) (arm_elf_make_msymbols_special, arm_coff_make_msymbol_special) (arm_extract_return_value, arm_register_name): Make static. (arm_software_single_step): Similarly. Fix types in declaration. (arm_register_byte, arm_register_raw_size, arm_register_virtual_size) (arm_store_return_value, arm_store_struct_return): New functions. (arm_gdbarch_init): Register the above functions. Also register call_dummy_start_offset, sizeof_call_dummy_words, function_start_offset, inner_than, decr_pc_after_break, fp_regnum, sp_regnum, pc_regnum, register_bytes, num_regs, max_register_raw_size, max_register_virtual_size, register_size. Set up prologue_cache.saved_regs here, rather than ... (_initialize_arm_tdep): ... here. * config/arm/tm-arm.h (struct type, struct value): Delete forward declarations. (arm_addr_bits_remove, arm_smash_text_address, arm_saved_pc_after_call) (arm_skip_prologue, arm_call_dummy_words, arm_fix_call_dummy) (arm_print_float_info, arm_register_type, convert_to_extended) (arm_elf_make_msymbols_special, arm_coff_make_msymbol_special) (arm_extract_return_value, arm_register_name): Delete declarations. (SMASH_TEXT_ADDRESS, ADDR_BITS_REMOVE, FUNCTION_START_OFFSET) (SKIP_PROLOGUE, SAVED_PC_AFTER_CALL, INNER_THAN, BREAKPOINT_FROM_PC) (DECR_PC_AFTER_BREAK, PRINT_FLOAT_INFO, REGISTER_SIZE, NUM_REGS) (REGISTER_NAME, REGISTER_BYTES, REGISTER_BYTE, REGISTER_RAW_SIZE) (REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE) (MAX_REGISTER_VIRTUAL_SIZE, REGISTER_VIRTUAL_TYPE, STORE_STRUCT_RETURN) (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE, CALL_DUMMY_WORDS) (SIZEOF_CALL_DUMMY_WORDS, CALL_DUMMY_START_OFFSET, FIX_CALL_DUMMY) (SOFTWARE_SINGLE_STEP_P, SOFTWARE_SINGLE_STEP) (ELF_MAKE_MSYMBOL_SPECIAL, COFF_MAKE_MSYMBOL_SPECIAL) Delete. (arm_pc_is_thumb, arm_pc_is_thumb_dummy, thumb_get_next_pc) (arm_get_next_pc): No-longer static -- these are needed by the RDI interface. * arm-linux-nat.c arm-linux-tdep.c armnbsd-nat.c: Include arm-tdep.h. * remote-rdi.c remote-rdp.c: Likewise. * Makefile.in (arm-linux-nat.o, arm-linux-tdep.o arm-tdep.o) (armnbsd-nat.o, remote-rdi.o, remote_rdp.o): Update dependencies. * config/arm/tm-nbsd.h (SOFTWARE_SINGLE_STEP_P): Delete bogus definition. * arm-tdep.h (ARM_A1_REGNUM, ARM_A4_REGNUM, ARM_AP_REGNUM) (ARM_SP_REGNUM, ARM_LR_REGNUM, ARM_PC_REGNUM, ARM_F0_REGNUM) (ARM_F3_REGNUM, ARM_F7_REGNUM, ARM_FPS_REGNUM, ARM_PS_REGNUM): Renamed from non-ARM_ prefixed definitions. * arm-tdep.c armnbsd-nat.c arm-linux-nat.c arm-linux-tdep.c: Update all uses of above. * remote-rdi.c remote-rdp.c: Likewise. * arm-linux-nat.c (ARM_CPSR_REGNUM): Renamed from CPSR_REGNUM.
2002-02-11 18:34:12 +00:00
Copyright 1988, 1989, 1991, 1992, 1994, 1996, 1999, 2002
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#ifndef FETCH_INFERIOR_REGISTERS
#error Not FETCH_INFERIOR_REGISTERS
#endif /* !FETCH_INFERIOR_REGISTERS */
* arm-tdep.h: New file. * arm-tdep.c: Include arm-tdep.h. (arm_addr_bits_remove, arm_smash_text_address, arm_saved_pc_after_call) (arm_skip_prologue, arm_call_dummy_words, arm_fix_call_dummy) (arm_print_float_info, arm_register_type, convert_to_extended) (arm_elf_make_msymbols_special, arm_coff_make_msymbol_special) (arm_extract_return_value, arm_register_name): Make static. (arm_software_single_step): Similarly. Fix types in declaration. (arm_register_byte, arm_register_raw_size, arm_register_virtual_size) (arm_store_return_value, arm_store_struct_return): New functions. (arm_gdbarch_init): Register the above functions. Also register call_dummy_start_offset, sizeof_call_dummy_words, function_start_offset, inner_than, decr_pc_after_break, fp_regnum, sp_regnum, pc_regnum, register_bytes, num_regs, max_register_raw_size, max_register_virtual_size, register_size. Set up prologue_cache.saved_regs here, rather than ... (_initialize_arm_tdep): ... here. * config/arm/tm-arm.h (struct type, struct value): Delete forward declarations. (arm_addr_bits_remove, arm_smash_text_address, arm_saved_pc_after_call) (arm_skip_prologue, arm_call_dummy_words, arm_fix_call_dummy) (arm_print_float_info, arm_register_type, convert_to_extended) (arm_elf_make_msymbols_special, arm_coff_make_msymbol_special) (arm_extract_return_value, arm_register_name): Delete declarations. (SMASH_TEXT_ADDRESS, ADDR_BITS_REMOVE, FUNCTION_START_OFFSET) (SKIP_PROLOGUE, SAVED_PC_AFTER_CALL, INNER_THAN, BREAKPOINT_FROM_PC) (DECR_PC_AFTER_BREAK, PRINT_FLOAT_INFO, REGISTER_SIZE, NUM_REGS) (REGISTER_NAME, REGISTER_BYTES, REGISTER_BYTE, REGISTER_RAW_SIZE) (REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE) (MAX_REGISTER_VIRTUAL_SIZE, REGISTER_VIRTUAL_TYPE, STORE_STRUCT_RETURN) (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE, CALL_DUMMY_WORDS) (SIZEOF_CALL_DUMMY_WORDS, CALL_DUMMY_START_OFFSET, FIX_CALL_DUMMY) (SOFTWARE_SINGLE_STEP_P, SOFTWARE_SINGLE_STEP) (ELF_MAKE_MSYMBOL_SPECIAL, COFF_MAKE_MSYMBOL_SPECIAL) Delete. (arm_pc_is_thumb, arm_pc_is_thumb_dummy, thumb_get_next_pc) (arm_get_next_pc): No-longer static -- these are needed by the RDI interface. * arm-linux-nat.c arm-linux-tdep.c armnbsd-nat.c: Include arm-tdep.h. * remote-rdi.c remote-rdp.c: Likewise. * Makefile.in (arm-linux-nat.o, arm-linux-tdep.o arm-tdep.o) (armnbsd-nat.o, remote-rdi.o, remote_rdp.o): Update dependencies. * config/arm/tm-nbsd.h (SOFTWARE_SINGLE_STEP_P): Delete bogus definition. * arm-tdep.h (ARM_A1_REGNUM, ARM_A4_REGNUM, ARM_AP_REGNUM) (ARM_SP_REGNUM, ARM_LR_REGNUM, ARM_PC_REGNUM, ARM_F0_REGNUM) (ARM_F3_REGNUM, ARM_F7_REGNUM, ARM_FPS_REGNUM, ARM_PS_REGNUM): Renamed from non-ARM_ prefixed definitions. * arm-tdep.c armnbsd-nat.c arm-linux-nat.c arm-linux-tdep.c: Update all uses of above. * remote-rdi.c remote-rdp.c: Likewise. * arm-linux-nat.c (ARM_CPSR_REGNUM): Renamed from CPSR_REGNUM.
2002-02-11 18:34:12 +00:00
#include "arm-tdep.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include "inferior.h"
#include "regcache.h"
#include "gdbcore.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++)
supply_register (regno, (char *) &gregset->r[regno]);
supply_register (ARM_SP_REGNUM, (char *) &gregset->r_sp);
supply_register (ARM_LR_REGNUM, (char *) &gregset->r_lr);
/* This is ok: we're running native... */
r_pc = ADDR_BITS_REMOVE (gregset->r_pc);
supply_register (ARM_PC_REGNUM, (char *) &r_pc);
if (arm_apcs_32)
supply_register (ARM_PS_REGNUM, (char *) &gregset->r_cpsr);
else
supply_register (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++)
supply_register
(regno, (char *) &fparegset->fpr[regno - ARM_F0_REGNUM]);
supply_register (ARM_FPS_REGNUM, (char *) &fparegset->fpr_fpsr);
}
static void
fetch_register (int regno)
{
struct reg inferior_registers;
int ret;
ret = ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
if (ret < 0)
{
warning ("unable to fetch general register");
return;
}
switch (regno)
{
case ARM_SP_REGNUM:
supply_register (ARM_SP_REGNUM, (char *) &inferior_registers.r_sp);
break;
case ARM_LR_REGNUM:
supply_register (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);
supply_register (ARM_PC_REGNUM, (char *) &inferior_registers.r_pc);
break;
case ARM_PS_REGNUM:
if (arm_apcs_32)
supply_register (ARM_PS_REGNUM, (char *) &inferior_registers.r_cpsr);
else
supply_register (ARM_PS_REGNUM, (char *) &inferior_registers.r_pc);
break;
default:
supply_register (regno, (char *) &inferior_registers.r[regno]);
break;
}
}
static void
fetch_regs (void)
{
struct reg inferior_registers;
int ret;
int regno;
ret = ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &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_ARG3_TYPE) &inferior_fp_registers, 0);
if (ret < 0)
{
warning ("unable to fetch floating-point register");
return;
}
switch (regno)
{
case ARM_FPS_REGNUM:
supply_register (ARM_FPS_REGNUM,
(char *) &inferior_fp_registers.fpr_fpsr);
break;
default:
supply_register
(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_ARG3_TYPE) &inferior_fp_registers, 0);
if (ret < 0)
{
warning ("unable to fetch general registers");
return;
}
supply_fparegset (&inferior_fp_registers);
}
void
fetch_inferior_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_ARG3_TYPE) &inferior_registers, 0);
if (ret < 0)
{
warning ("unable to fetch general registers");
return;
}
switch (regno)
{
case ARM_SP_REGNUM:
regcache_collect (ARM_SP_REGNUM, (char *) &inferior_registers.r_sp);
break;
case ARM_LR_REGNUM:
regcache_collect (ARM_LR_REGNUM, (char *) &inferior_registers.r_lr);
break;
case ARM_PC_REGNUM:
if (arm_apcs_32)
regcache_collect (ARM_PC_REGNUM, (char *) &inferior_registers.r_pc);
else
{
unsigned pc_val;
regcache_collect (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_collect (ARM_PS_REGNUM, (char *) &inferior_registers.r_cpsr);
else
{
unsigned psr_val;
regcache_collect (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_collect (regno, (char *) &inferior_registers.r[regno]);
break;
}
ret = ptrace (PT_SETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &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_collect (regno, (char *) &inferior_registers.r[regno]);
regcache_collect (ARM_SP_REGNUM, (char *) &inferior_registers.r_sp);
regcache_collect (ARM_LR_REGNUM, (char *) &inferior_registers.r_lr);
if (arm_apcs_32)
{
regcache_collect (ARM_PC_REGNUM, (char *) &inferior_registers.r_pc);
regcache_collect (ARM_PS_REGNUM, (char *) &inferior_registers.r_cpsr);
}
else
{
unsigned pc_val;
unsigned psr_val;
regcache_collect (ARM_PC_REGNUM, (char *) &pc_val);
regcache_collect (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_ARG3_TYPE) &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_ARG3_TYPE) &inferior_fp_registers, 0);
if (ret < 0)
{
warning ("unable to fetch floating-point registers");
return;
}
switch (regno)
{
case ARM_FPS_REGNUM:
regcache_collect (ARM_FPS_REGNUM,
(char *) &inferior_fp_registers.fpr_fpsr);
break;
default:
regcache_collect
(regno, (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
break;
}
ret = ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &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_collect
(regno, (char *) &inferior_fp_registers.fpr[regno - ARM_F0_REGNUM]);
regcache_collect (ARM_FPS_REGNUM, (char *) &inferior_fp_registers.fpr_fpsr);
ret = ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
if (ret < 0)
warning ("unable to store floating-point registers");
}
void
store_inferior_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 reg intreg;
struct fpreg freg;
};
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;
supply_gregset (&core_reg->intreg);
supply_fparegset (&core_reg->freg);
}
static void
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR ignore)
{
struct reg gregset;
struct fpreg fparegset;
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 =
{
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)
{
add_core_fns (&arm_netbsd_core_fns);
add_core_fns (&arm_netbsd_elfcore_fns);
}