old-cross-binutils/gdb/irix4-nat.c

208 lines
6.1 KiB
C
Raw Normal View History

/* Native support for the SGI Iris running IRIX version 4, for GDB.
2001-03-06 08:22:02 +00:00
Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996, 1999, 2000,
2001 Free Software Foundation, Inc.
Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
Implemented for Irix 4.x by Garrett A. Wollman.
1999-07-07 20:19:36 +00:00
This file is part of GDB.
1999-07-07 20:19:36 +00:00
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.
1999-07-07 20:19:36 +00:00
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.
1999-07-07 20:19:36 +00:00
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 "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
typedef unsigned int greg_t; /* why isn't this defined? */
2000-05-28 01:12:42 +00:00
static void fetch_core_registers (char *, unsigned int, int, CORE_ADDR);
/*
* See the comment in m68k-tdep.c regarding the utility of these functions.
*/
1999-07-07 20:19:36 +00:00
void
2000-07-30 01:48:28 +00:00
supply_gregset (gregset_t *gregsetp)
{
register int regi;
1999-07-07 20:19:36 +00:00
register greg_t *regp = (greg_t *) (gregsetp->gp_regs);
char zerobuf[MAX_REGISTER_SIZE];
memset (zerobuf, 0, MAX_REGISTER_SIZE);
/* FIXME: somewhere, there should be a #define for the meaning
of this magic number 32; we should use that. */
1999-07-07 20:19:36 +00:00
for (regi = 0; regi < 32; regi++)
supply_register (regi, (char *) (regp + regi));
1999-07-07 20:19:36 +00:00
supply_register (PC_REGNUM, (char *) &(gregsetp->gp_pc));
supply_register (HI_REGNUM, (char *) &(gregsetp->gp_mdhi));
supply_register (LO_REGNUM, (char *) &(gregsetp->gp_mdlo));
supply_register (CAUSE_REGNUM, (char *) &(gregsetp->gp_cause));
/* Fill inaccessible registers with zero. */
supply_register (BADVADDR_REGNUM, zerobuf);
}
void
2000-07-30 01:48:28 +00:00
fill_gregset (gregset_t *gregsetp, int regno)
{
int regi;
1999-07-07 20:19:36 +00:00
register greg_t *regp = (greg_t *) (gregsetp->gp_regs);
1999-07-07 20:19:36 +00:00
/* same FIXME as above wrt 32 */
for (regi = 0; regi < 32; regi++)
if ((regno == -1) || (regno == regi))
*(regp + regi) = *(greg_t *) & deprecated_registers[REGISTER_BYTE (regi)];
if ((regno == -1) || (regno == PC_REGNUM))
gregsetp->gp_pc = *(greg_t *) & deprecated_registers[REGISTER_BYTE (PC_REGNUM)];
if ((regno == -1) || (regno == CAUSE_REGNUM))
gregsetp->gp_cause = *(greg_t *) & deprecated_registers[REGISTER_BYTE (CAUSE_REGNUM)];
if ((regno == -1) || (regno == HI_REGNUM))
gregsetp->gp_mdhi = *(greg_t *) & deprecated_registers[REGISTER_BYTE (HI_REGNUM)];
if ((regno == -1) || (regno == LO_REGNUM))
gregsetp->gp_mdlo = *(greg_t *) & deprecated_registers[REGISTER_BYTE (LO_REGNUM)];
}
/*
* 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
2000-07-30 01:48:28 +00:00
supply_fpregset (fpregset_t *fpregsetp)
{
register int regi;
char zerobuf[MAX_REGISTER_SIZE];
memset (zerobuf, 0, MAX_REGISTER_SIZE);
for (regi = 0; regi < 32; regi++)
supply_register (FP0_REGNUM + regi,
1999-07-07 20:19:36 +00:00
(char *) &fpregsetp->fp_r.fp_regs[regi]);
1999-07-07 20:19:36 +00:00
supply_register (FCRCS_REGNUM, (char *) &fpregsetp->fp_csr);
/* FIXME: how can we supply FCRIR_REGNUM? SGI doesn't tell us. */
supply_register (FCRIR_REGNUM, zerobuf);
}
void
2000-07-30 01:48:28 +00:00
fill_fpregset (fpregset_t *fpregsetp, int regno)
{
int regi;
char *from, *to;
for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
{
if ((regno == -1) || (regno == regi))
{
from = (char *) &deprecated_registers[REGISTER_BYTE (regi)];
to = (char *) &(fpregsetp->fp_r.fp_regs[regi - FP0_REGNUM]);
1999-07-07 20:19:36 +00:00
memcpy (to, from, REGISTER_RAW_SIZE (regi));
}
}
if ((regno == -1) || (regno == FCRCS_REGNUM))
fpregsetp->fp_csr = *(unsigned *) &deprecated_registers[REGISTER_BYTE (FCRCS_REGNUM)];
}
/* 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
2000-07-30 01:48:28 +00:00
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;
2003-06-01 Andrew Cagney <cagney@redhat.com> * defs.h (extract_address): Delete declaration. * findvar.c (extract_address): Delete function. * xstormy16-tdep.c (xstormy16_extract_return_value): Replace extract_address with the inline equivalent, extract_unsigned_integer. (xstormy16_extract_struct_value_address): Ditto. (xstormy16_pointer_to_address): Ditto. * vax-tdep.c (vax_extract_struct_value_address): Ditto. * v850-tdep.c (v850_push_arguments): Ditto. (v850_extract_return_value): Ditto. (v850_extract_struct_value_address): Ditto. * sparcnbsd-tdep.c (sparcnbsd_get_longjmp_target_32): Ditto. (sparcnbsd_get_longjmp_target_64): Ditto. * sparc-tdep.c (sparc_frame_saved_pc): Ditto. (get_longjmp_target): Ditto. * sh-tdep.c (sh_extract_struct_value_address): Ditto. (sh64_extract_struct_value_address): Ditto. (sh_push_arguments): Ditto. (sh64_push_arguments): Ditto. * remote-vxsparc.c (vx_read_register): Ditto. * ppc-linux-tdep.c (ppc_linux_skip_trampoline_code): Ditto. * ns32k-tdep.c (ns32k_extract_struct_value_address): Ditto. * mn10300-tdep.c (mn10300_extract_struct_value_address): Ditto. * mipsv4-nat.c (get_longjmp_target): Ditto. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Ditto. * mips-nat.c (get_longjmp_target): Ditto. * mips-linux-tdep.c (mips_linux_get_longjmp_target): Ditto. * mcore-tdep.c (mcore_extract_struct_value_address): Ditto. * m68k-tdep.c (m68k_get_longjmp_target): Ditto. * m68hc11-tdep.c (m68hc11_extract_struct_value_address): Ditto. * irix5-nat.c (get_longjmp_target): Ditto. * irix4-nat.c (get_longjmp_target): Ditto. * ia64-tdep.c (generic_elf_find_global_pointer): Ditto. (ia64_push_arguments): Ditto. * hpux-thread.c (hpux_thread_store_registers): Ditto. * h8300-tdep.c (h8300_push_arguments): Ditto. (h8300_store_return_value): Ditto. (h8300_extract_struct_value_address): Ditto. * frv-tdep.c (frv_extract_struct_value_address): Ditto. (frv_push_arguments): Ditto. * avr-tdep.c (avr_pointer_to_address): Ditto. (avr_push_arguments): Ditto. * arm-tdep.c (arm_push_dummy_call): Ditto. (arm_get_longjmp_target): Ditto. * arm-linux-tdep.c (arm_linux_push_arguments): Ditto. * alpha-tdep.c (alpha_extract_struct_value_address): Ditto. (alpha_get_longjmp_target): Ditto.
2003-06-02 02:09:40 +00:00
*pc = extract_unsigned_integer (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
return 1;
}
2000-09-11 07:36:07 +00:00
/* Provide registers to GDB from a core file.
CORE_REG_SECT points to an array of bytes, which were obtained from
a core file which BFD thinks might contain register contents.
CORE_REG_SIZE is its size.
Normally, WHICH says which register set corelow suspects this is:
0 --- the general-purpose register set
2 --- the floating-point register set
However, for Irix 4, WHICH isn't used.
REG_ADDR is also unused. */
static void
2000-09-11 07:36:07 +00:00
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR reg_addr)
{
2003-05-16 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (DEPRECATED_REGISTER_BYTES): Rename REGISTER_BYTES. * gdbarch.h, gdbarch.c: Re-generate. * arm-linux-tdep.c (arm_linux_extract_return_value): Delete reference. * TODO (REGISTER_BYTES): Delete reference. * alpha-tdep.c (alpha_gdbarch_init): Update. * xstormy16-tdep.c (xstormy16_gdbarch_init): Update. * x86-64-tdep.c (x86_64_init_abi): Update. * vax-tdep.c (vax_gdbarch_init): Update. * v850-tdep.c (v850_gdbarch_init): Update. * sparc-tdep.c (sparc_gdbarch_init): Update. * sh-tdep.c (sh_gdbarch_init): Update. * s390-tdep.c (s390_gdbarch_init): Update. * rs6000-tdep.c (rs6000_gdbarch_init): Update. * ns32k-tdep.c (ns32k_gdbarch_init_32082): Update. (ns32k_gdbarch_init_32382): Update. * mn10300-tdep.c (mn10300_gdbarch_init): Update. * mcore-tdep.c (mcore_gdbarch_init): Update. * m68k-tdep.c (m68k_gdbarch_init): Update. * m68hc11-tdep.c (m68hc11_gdbarch_init): Update. * ia64-tdep.c (ia64_gdbarch_init): Update. * i386-tdep.c (i386_gdbarch_init): Update. * i386-linux-tdep.c (i386_linux_init_abi): Update. * hppa-tdep.c (hppa_gdbarch_init): Update. * h8300-tdep.c (h8300_gdbarch_init): Update. * frv-tdep.c (frv_gdbarch_init): Update. * cris-tdep.c (cris_gdbarch_init): Update. * avr-tdep.c (avr_gdbarch_init): Update. * arm-tdep.c (arm_gdbarch_init): Update. * sparc-tdep.c (sparc_pop_frame): Update. * rs6000-tdep.c (rs6000_pop_frame): Update. * remote.c (init_remote_state): Update. (remote_prepare_to_store): Update. * remote-vx.c (vx_prepare_to_store): Update. * remote-sds.c (sds_fetch_registers): Update. (sds_prepare_to_store): Update. * remote-array.c: Update. * regcache.c (init_legacy_regcache_descr): Update. (init_regcache_descr): Update. * mips-tdep.c (mips_eabi_extract_return_value): Update. (mips_o64_extract_return_value): Update. * irix5-nat.c (fetch_core_registers): Update. * irix4-nat.c (fetch_core_registers): Update. * i386-tdep.h: Update. * hppa-tdep.c (pa_do_registers_info): Update. (pa_do_strcat_registers_info): Update. * cris-tdep.c (cris_register_bytes_ok): Update. * config/nm-gnu.h (CHILD_PREPARE_TO_STORE): Update. * config/sparc/tm-sparc.h (DEPRECATED_REGISTER_BYTES): Update. * config/sparc/nm-sun4sol2.h (CHILD_PREPARE_TO_STORE): Update. * config/sparc/nm-sun4os4.h (CHILD_PREPARE_TO_STORE): Update. * config/sparc/nm-nbsd.h (CHILD_PREPARE_TO_STORE): Update. * config/sparc/tm-sp64.h (DEPRECATED_REGISTER_BYTES): Update. * config/s390/tm-s390.h (DEPRECATED_REGISTER_BYTES): Update. * config/pa/tm-hppa64.h (DEPRECATED_REGISTER_BYTES): Update. * config/mips/tm-mips.h (DEPRECATED_REGISTER_BYTES): Update. * config/mips/tm-irix6.h (DEPRECATED_REGISTER_BYTES): Update. * config/mips/tm-irix5.h (DEPRECATED_REGISTER_BYTES): Update. * config/m68k/tm-sun3.h (DEPRECATED_REGISTER_BYTES): Update. (REGISTER_BYTES_OK): Update. * config/m68k/nm-sun3.h (CHILD_PREPARE_TO_STORE): Update. * config/ia64/tm-ia64.h (DEPRECATED_REGISTER_BYTES): Update. Index: doc/ChangeLog 2003-05-16 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Target Architecture Definition): Replace REGISTER_BYTES with DEPRECATED_REGISTER_BYTES. Fix typo, DEPRECATED_REGISTER_SIZE instead of REGISTER_BYTE. Index: mi/ChangeLog 2003-05-16 Andrew Cagney <cagney@redhat.com> * mi-main.c (mi_setup_architecture_data):
2003-05-17 06:00:01 +00:00
if (core_reg_size != DEPRECATED_REGISTER_BYTES)
{
warning ("wrong size gregset struct in core file");
return;
}
memcpy ((char *) deprecated_registers, core_reg_sect, core_reg_size);
}
1999-07-07 20:19:36 +00:00
/* Register that we are able to handle irix4 core file formats.
FIXME: is this really bfd_target_unknown_flavour? */
static struct core_fns irix4_core_fns =
{
1999-10-05 23:13:56 +00:00
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
void
2000-07-30 01:48:28 +00:00
_initialize_core_irix4 (void)
{
add_core_fns (&irix4_core_fns);
}