old-cross-binutils/gdb/mipsv4-nat.c
Andrew Cagney 3acba33923 2004-08-02 Andrew Cagney <cagney@gnu.org>
Replace DEPRECATED_REGISTER_RAW_SIZE with register_size.
	* rs6000-tdep.c (rs6000_push_dummy_call)
	(rs6000_extract_return_value): Use register_size.
	* xstormy16-tdep.c (xstormy16_get_saved_register)
	(xstormy16_extract_return_value): Ditto.
	* valops.c (value_assign): Ditto.
	* v850ice.c (v850ice_fetch_registers, v850ice_store_registers):
	* v850-tdep.c (v850_extract_return_value): Ditto.
	* tracepoint.c (collect_symbol): Ditto.
	* target.c (debug_print_register): Ditto.
	* stack.c (frame_info): Ditto.
	* rs6000-nat.c (ARCH64, fetch_register, store_register): Ditto.
	* rom68k-rom.c (rom68k_supply_one_register): Ditto.
	* remote.c (struct packet_reg, remote_wait, remote_async_wait)
	(store_register_using_P): Ditto.
	* remote-vxmips.c (vx_read_register, vx_write_register): Ditto.
	* remote-sim.c (gdbsim_fetch_register, gdbsim_store_register): Ditto.
	* remote-mips.c (mips_wait, mips_fetch_registers): Ditto.
	* remote-e7000.c (fetch_regs_from_dump, sub2_from_pc): Ditto.
	* regcache.c (deprecated_read_register_bytes)
	(deprecated_write_register_bytes, read_register)
	(write_register): Ditto.
	* ppc-linux-nat.c (fetch_altivec_register, fetch_register)
	(supply_vrregset, store_altivec_register, fill_vrregset): Ditto.
	* monitor.c (monitor_supply_register, monitor_fetch_register)
	(monitor_store_register): Ditto.
	* mn10300-tdep.c (mn10300_pop_frame_regular)
	(mn10300_print_register): Ditto.
	* mipsv4-nat.c (fill_fpregset): Ditto.
	* mips-linux-tdep.c (supply_32bit_reg, fill_fpregset)
	(mips64_fill_fpregset): Ditto.
	* mi/mi-main.c (register_changed_p, get_register)
	(mi_cmd_data_write_register_values): Ditto.
	* lynx-nat.c (fetch_inferior_registers, store_inferior_registers):
	* irix5-nat.c (fill_gregset, fetch_core_registers):
	* infrun.c (write_inferior_status_register): Ditto.
	* infptrace.c (fetch_register, store_register): Ditto.
	* infcmd.c (default_print_registers_info): Ditto.
	* ia64-linux-nat.c (COPY_REG, fill_fpregset): Ditto.
	* ia64-aix-nat.c (COPY_REG, fill_gregset): Ditto.
	* i386gnu-nat.c (gnu_store_registers, fill): Ditto.
	* hpux-thread.c (hpux_thread_fetch_registers)
	(hpux_thread_store_registers): Ditto.
	* hppah-nat.c (store_inferior_registers, fetch_register):
	* findvar.c (value_from_register): Ditto.
	* dve3900-rom.c (fetch_bitmapped_register):
	* cris-tdep.c (cris_gdbarch_init): Ditto.
	* alpha-tdep.h: Ditto.
	* aix-thread.c (pd_enable, fill_sprs64, fill_sprs32): Ditto.
2004-08-03 00:57:27 +00:00

173 lines
5.7 KiB
C

/* Native support for MIPS running SVR4, for GDB.
Copyright 1994, 1995, 2000, 2001 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"
#include "inferior.h"
#include "gdbcore.h"
#include "target.h"
#include "regcache.h"
#include <sys/time.h>
#include <sys/procfs.h>
#include <setjmp.h> /* For JB_XXX. */
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
/* Size of elements in jmpbuf */
#define JB_ELEMENT_SIZE 4
/*
* See the comment in m68k-tdep.c regarding the utility of these functions.
*
* These definitions are from the MIPS SVR4 ABI, so they may work for
* any MIPS SVR4 target.
*/
void
supply_gregset (gregset_t *gregsetp)
{
int regi;
greg_t *regp = &(*gregsetp)[0];
char zerobuf[MAX_REGISTER_SIZE];
memset (zerobuf, 0, MAX_REGISTER_SIZE);
for (regi = 0; regi <= CXT_RA; regi++)
regcache_raw_supply (current_regcache, regi, (char *) (regp + regi));
regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->pc,
(char *) (regp + CXT_EPC));
regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->hi,
(char *) (regp + CXT_MDHI));
regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->lo,
(char *) (regp + CXT_MDLO));
regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->cause,
(char *) (regp + CXT_CAUSE));
/* Fill inaccessible registers with zero. */
regcache_raw_supply (current_regcache, PS_REGNUM, zerobuf);
regcache_raw_supply (current_regcache,
mips_regnum (current_gdbarch)->badvaddr,
zerobuf);
regcache_raw_supply (current_regcache, DEPRECATED_FP_REGNUM, zerobuf);
regcache_raw_supply (current_regcache, UNUSED_REGNUM, zerobuf);
for (regi = FIRST_EMBED_REGNUM; regi <= LAST_EMBED_REGNUM; regi++)
regcache_raw_supply (current_regcache, regi, zerobuf);
}
void
fill_gregset (gregset_t *gregsetp, int regno)
{
int regi;
greg_t *regp = &(*gregsetp)[0];
for (regi = 0; regi <= 32; regi++)
if ((regno == -1) || (regno == regi))
*(regp + regi) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (regi)];
if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->pc))
*(regp + CXT_EPC) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->pc)];
if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->cause))
*(regp + CXT_CAUSE) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->cause)];
if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->hi))
*(regp + CXT_MDHI) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->hi)];
if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->lo))
*(regp + CXT_MDLO) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->lo)];
}
/*
* Now we do the same thing for floating-point registers.
* We don't bother to condition on FP0 regnum since any
* reasonable MIPS configuration has an R3010 in it.
*
* Again, see the comments in m68k-tdep.c.
*/
void
supply_fpregset (fpregset_t *fpregsetp)
{
int regi;
char zerobuf[MAX_REGISTER_SIZE];
memset (zerobuf, 0, MAX_REGISTER_SIZE);
for (regi = 0; regi < 32; regi++)
regcache_raw_supply (current_regcache,
mips_regnum (current_gdbarch)->fp0 + regi,
(char *) &fpregsetp->fp_r.fp_regs[regi]);
regcache_raw_supply (current_regcache,
mips_regnum (current_gdbarch)->fp_control_status,
(char *) &fpregsetp->fp_csr);
/* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */
regcache_raw_supply (current_regcache,
mips_regnum (current_gdbarch)->fp_implementation_revision,
zerobuf);
}
void
fill_fpregset (fpregset_t *fpregsetp, int regno)
{
int regi;
char *from, *to;
for (regi = mips_regnum (current_gdbarch)->fp0;
regi < mips_regnum (current_gdbarch)->fp0 + 32; regi++)
{
if ((regno == -1) || (regno == regi))
{
from = (char *) &deprecated_registers[DEPRECATED_REGISTER_BYTE (regi)];
to = (char *) &(fpregsetp->fp_r.fp_regs[regi - mips_regnum (current_gdbarch)->fp0]);
memcpy (to, from, register_size (current_gdbarch, regi));
}
}
if ((regno == -1)
|| (regno == mips_regnum (current_gdbarch)->fp_control_status))
fpregsetp->fp_csr = *(unsigned *) &deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->fp_control_status)];
}
/* Figure out where the longjmp will land.
We expect the first arg to be a pointer to the jmp_buf structure from which
we extract the pc (_JB_PC) that we will land at. The pc is copied into PC.
This routine returns true on success. */
int
get_longjmp_target (CORE_ADDR *pc)
{
char *buf;
CORE_ADDR jb_addr;
buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT);
jb_addr = read_register (A0_REGNUM);
if (target_read_memory (jb_addr + _JB_PC * JB_ELEMENT_SIZE, buf,
TARGET_PTR_BIT / TARGET_CHAR_BIT))
return 0;
*pc = extract_unsigned_integer (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
return 1;
}