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

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/* Low level DECstation interface to ptrace, for GDB when running native.
2001-03-06 08:22:02 +00:00
Copyright 1988, 1989, 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.
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This file is part of GDB.
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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.
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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/ptrace.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/user.h>
#undef JB_S0
#undef JB_S1
#undef JB_S2
#undef JB_S3
#undef JB_S4
#undef JB_S5
#undef JB_S6
#undef JB_S7
#undef JB_SP
#undef JB_S8
#undef JB_PC
#undef JB_SR
#undef NJBREGS
#include <setjmp.h> /* For JB_XXX. */
/* Size of elements in jmpbuf */
#define JB_ELEMENT_SIZE 4
/* Map gdb internal register number to ptrace ``address''.
These ``addresses'' are defined in DECstation <sys/ptrace.h> */
static int
register_ptrace_addr (int regno)
{
return (regno < 32 ? GPR_BASE + regno
: regno == PC_REGNUM ? PC
: regno == CAUSE_REGNUM ? CAUSE
: regno == HI_REGNUM ? MMHI
: regno == LO_REGNUM ? MMLO
: regno == FCRCS_REGNUM ? FPC_CSR
: regno == FCRIR_REGNUM ? FPC_EIR
: regno >= FP0_REGNUM ? FPR_BASE + (regno - FP0_REGNUM)
: 0);
}
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static void fetch_core_registers (char *, unsigned, int, CORE_ADDR);
/* Get all registers from the inferior */
void
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fetch_inferior_registers (int regno)
{
register unsigned int regaddr;
char buf[MAX_REGISTER_SIZE];
register int i;
char zerobuf[MAX_REGISTER_SIZE];
memset (zerobuf, 0, MAX_REGISTER_SIZE);
deprecated_registers_fetched ();
for (regno = 1; regno < NUM_REGS; regno++)
{
regaddr = register_ptrace_addr (regno);
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
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{
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*(int *) &buf[i] = ptrace (PT_READ_U, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) regaddr, 0);
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regaddr += sizeof (int);
}
supply_register (regno, buf);
}
supply_register (ZERO_REGNUM, zerobuf);
/* Frame ptr reg must appear to be 0; it is faked by stack handling code. */
2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (DEPRECATED_TARGET_READ_FP): Replace TARGET_READ_FP. (DEPRECATED_FP_REGNUM): Replace FP_REGNUM. * gdbarch.h, gdbarch.c: Re-generate. * infcall.c (call_function_by_hand): Use DEPRECATED_FP_REGNUM, DEPRECATED_TARGET_READ_FP, or "sp" to create the dummy frame ID. * inferior.h (deprecated_read_fp): Rename read_fp. (generic_target_read_fp): Delete declaration. * regcache.c (generic_target_read_fp): Delete function. (deprecated_read_fp): Replace read_fp, use DEPRECATED_TARGET_READ_FP or DEPRECATED_FP_REGNUM. * d10v-tdep.c (d10v_read_fp): Delete function. (d10v_gdbarch_init): Do not set deprecated_read_fp. * sparc-tdep.c (sparc_gdbarch_init): Do not set deprecated_target_read_fp to generic_target_read_fp. * sh-tdep.c (sh_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * xstormy16-tdep.c (xstormy16_gdbarch_init): Set deprecated_fp_regnum. * x86-64-tdep.c (x86_64_init_abi): Ditto. * vax-tdep.c (vax_gdbarch_init): Ditto. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mcore-tdep.c (mcore_gdbarch_init): Ditto. * m68k-tdep.c (m68k_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * i386-tdep.c (i386_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * h8300-tdep.c (h8300_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * cris-tdep.c (cris_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * alpha-tdep.c (alpha_gdbarch_init): Ditto. * x86-64-tdep.c (x86_64_init_abi): Set deprecated_target_read_fp. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mips-tdep.c (mips_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * vax-tdep.c (vax_frame_init_saved_regs): Replace FP_REGNUM with DEPRECATED_FP_REGNUM. (vax_push_dummy_frame, vax_pop_frame): Ditto. * std-regs.c (value_of_builtin_frame_fp_reg): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Ditto. (sparc_push_dummy_frame, sparc64_read_fp): Ditto. (sparc32_register_virtual_type): Ditto. * sh-tdep.c (sh64_frame_chain): Ditto. (sh64_get_saved_register, sh64_pop_frame): Ditto. (sh_nofp_frame_init_saved_regs): Ditto. (sh64_nofp_frame_init_saved_regs): Ditto. (sh_fp_frame_init_saved_regs): Ditto. * remote-mips.c (mips_wait, mips_fetch_registers): Ditto. * remote-e7000.c (fetch_regs_from_dump): Ditto. * procfs.c (procfs_fetch_registers): Ditto. (procfs_store_registers): Ditto. * ns32knbsd-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. (fetch_kcore_registers, clear_regs): Ditto. * ns32k-tdep.c (ns32k_frame_init_saved_regs): Ditto. (ns32k_push_dummy_frame, ns32k_pop_frame): Ditto. * nlm/i386.h (DEPRECATED_FP_REGNUM): Ditto. * nlm/i386.c (do_status): Ditto. * mipsv4-nat.c (supply_gregset): Ditto. * mips-tdep.c: Ditto for comments. * mips-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. * m68k-tdep.c (m68k_push_dummy_frame): Ditto. (m68k_pop_frame, m68k_frame_init_saved_regs): Ditto. * i386-tdep.c (i386_frame_init_saved_regs): Ditto. (i386_do_pop_frame, i386_register_type): Ditto. * hppa-tdep.c (hppa_frame_chain): Ditto. (hppa_push_dummy_frame, find_dummy_frame_regs): Ditto. (hppa_pop_frame, hppa_read_fp): Ditto. (skip_prologue_hard_way, hppa_frame_find_saved_regs): Ditto. * cris-tdep.c (cris_examine, cris_pop_frame): Ditto. * config/vax/nm-vax.h (REGISTER_U_ADDR): Ditto. * config/sparc/tm-sparc.h (DEPRECATED_FP_REGNUM): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_FP_REGNUM): Ditto. * config/s390/tm-s390.h (DEPRECATED_FP_REGNUM): Ditto. * config/pa/tm-hppa64.h (DEPRECATED_FP_REGNUM): Ditto. * config/ia64/tm-ia64.h (DEPRECATED_FP_REGNUM): Ditto. * blockframe.c: Ditto for comments. * arch-utils.h: Ditto for comments. * arch-utils.c (legacy_virtual_frame_pointer): Ditto. * alphanbsd-tdep.c (fetch_core_registers): Ditto. * alphabsd-nat.c (fetch_inferior_registers): Ditto. * alpha-tdep.h: Ditto for comments. * alpha-tdep.c (alpha_cannot_fetch_register): Ditto. (alpha_cannot_store_register): Ditto. (alpha_push_dummy_frame): Ditto. * alpha-nat.c (supply_gregset): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_TARGET_READ_FP): Update. * config/pa/tm-hppa64.h (DEPRECATED_TARGET_READ_FP): Update. * config/sparc/tm-sparc.h: Update comment. * hppa-tdep.c (hppa_init_extra_frame_info): Use deprecated_read_fp instead of TARGET_READ_FP. (hppa_init_extra_frame_info, hppa_frame_chain): Ditto. (hppa_push_dummy_frame, hppa_read_fp): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Use deprecated_read_fp instead of read_fp. * s390-tdep.c (s390_push_arguments): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * frame.h: Ditto in comments. * frame.c (legacy_get_prev_frame): Ditto. * dummy-frame.c (dummy_frame_this_id): Ditto. * arm-tdep.c (arm_init_extra_frame_info): Ditto. 2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Target Architecture Definition): Replace read_fp, TARGET_READ_FP and FP_REGNUM, with deprecated_read_fp, DEPRECATED_TARGET_READ_FP and DEPRECATED_REGNUM.
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supply_register (DEPRECATED_FP_REGNUM, zerobuf);
}
/* Store our register values back into the inferior.
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
void
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store_inferior_registers (int regno)
{
register unsigned int regaddr;
char buf[80];
if (regno > 0)
{
if (regno == ZERO_REGNUM || regno == PS_REGNUM
|| regno == BADVADDR_REGNUM || regno == CAUSE_REGNUM
2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (DEPRECATED_TARGET_READ_FP): Replace TARGET_READ_FP. (DEPRECATED_FP_REGNUM): Replace FP_REGNUM. * gdbarch.h, gdbarch.c: Re-generate. * infcall.c (call_function_by_hand): Use DEPRECATED_FP_REGNUM, DEPRECATED_TARGET_READ_FP, or "sp" to create the dummy frame ID. * inferior.h (deprecated_read_fp): Rename read_fp. (generic_target_read_fp): Delete declaration. * regcache.c (generic_target_read_fp): Delete function. (deprecated_read_fp): Replace read_fp, use DEPRECATED_TARGET_READ_FP or DEPRECATED_FP_REGNUM. * d10v-tdep.c (d10v_read_fp): Delete function. (d10v_gdbarch_init): Do not set deprecated_read_fp. * sparc-tdep.c (sparc_gdbarch_init): Do not set deprecated_target_read_fp to generic_target_read_fp. * sh-tdep.c (sh_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * xstormy16-tdep.c (xstormy16_gdbarch_init): Set deprecated_fp_regnum. * x86-64-tdep.c (x86_64_init_abi): Ditto. * vax-tdep.c (vax_gdbarch_init): Ditto. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mcore-tdep.c (mcore_gdbarch_init): Ditto. * m68k-tdep.c (m68k_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * i386-tdep.c (i386_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * h8300-tdep.c (h8300_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * cris-tdep.c (cris_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * alpha-tdep.c (alpha_gdbarch_init): Ditto. * x86-64-tdep.c (x86_64_init_abi): Set deprecated_target_read_fp. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mips-tdep.c (mips_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * vax-tdep.c (vax_frame_init_saved_regs): Replace FP_REGNUM with DEPRECATED_FP_REGNUM. (vax_push_dummy_frame, vax_pop_frame): Ditto. * std-regs.c (value_of_builtin_frame_fp_reg): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Ditto. (sparc_push_dummy_frame, sparc64_read_fp): Ditto. (sparc32_register_virtual_type): Ditto. * sh-tdep.c (sh64_frame_chain): Ditto. (sh64_get_saved_register, sh64_pop_frame): Ditto. (sh_nofp_frame_init_saved_regs): Ditto. (sh64_nofp_frame_init_saved_regs): Ditto. (sh_fp_frame_init_saved_regs): Ditto. * remote-mips.c (mips_wait, mips_fetch_registers): Ditto. * remote-e7000.c (fetch_regs_from_dump): Ditto. * procfs.c (procfs_fetch_registers): Ditto. (procfs_store_registers): Ditto. * ns32knbsd-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. (fetch_kcore_registers, clear_regs): Ditto. * ns32k-tdep.c (ns32k_frame_init_saved_regs): Ditto. (ns32k_push_dummy_frame, ns32k_pop_frame): Ditto. * nlm/i386.h (DEPRECATED_FP_REGNUM): Ditto. * nlm/i386.c (do_status): Ditto. * mipsv4-nat.c (supply_gregset): Ditto. * mips-tdep.c: Ditto for comments. * mips-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. * m68k-tdep.c (m68k_push_dummy_frame): Ditto. (m68k_pop_frame, m68k_frame_init_saved_regs): Ditto. * i386-tdep.c (i386_frame_init_saved_regs): Ditto. (i386_do_pop_frame, i386_register_type): Ditto. * hppa-tdep.c (hppa_frame_chain): Ditto. (hppa_push_dummy_frame, find_dummy_frame_regs): Ditto. (hppa_pop_frame, hppa_read_fp): Ditto. (skip_prologue_hard_way, hppa_frame_find_saved_regs): Ditto. * cris-tdep.c (cris_examine, cris_pop_frame): Ditto. * config/vax/nm-vax.h (REGISTER_U_ADDR): Ditto. * config/sparc/tm-sparc.h (DEPRECATED_FP_REGNUM): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_FP_REGNUM): Ditto. * config/s390/tm-s390.h (DEPRECATED_FP_REGNUM): Ditto. * config/pa/tm-hppa64.h (DEPRECATED_FP_REGNUM): Ditto. * config/ia64/tm-ia64.h (DEPRECATED_FP_REGNUM): Ditto. * blockframe.c: Ditto for comments. * arch-utils.h: Ditto for comments. * arch-utils.c (legacy_virtual_frame_pointer): Ditto. * alphanbsd-tdep.c (fetch_core_registers): Ditto. * alphabsd-nat.c (fetch_inferior_registers): Ditto. * alpha-tdep.h: Ditto for comments. * alpha-tdep.c (alpha_cannot_fetch_register): Ditto. (alpha_cannot_store_register): Ditto. (alpha_push_dummy_frame): Ditto. * alpha-nat.c (supply_gregset): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_TARGET_READ_FP): Update. * config/pa/tm-hppa64.h (DEPRECATED_TARGET_READ_FP): Update. * config/sparc/tm-sparc.h: Update comment. * hppa-tdep.c (hppa_init_extra_frame_info): Use deprecated_read_fp instead of TARGET_READ_FP. (hppa_init_extra_frame_info, hppa_frame_chain): Ditto. (hppa_push_dummy_frame, hppa_read_fp): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Use deprecated_read_fp instead of read_fp. * s390-tdep.c (s390_push_arguments): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * frame.h: Ditto in comments. * frame.c (legacy_get_prev_frame): Ditto. * dummy-frame.c (dummy_frame_this_id): Ditto. * arm-tdep.c (arm_init_extra_frame_info): Ditto. 2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Target Architecture Definition): Replace read_fp, TARGET_READ_FP and FP_REGNUM, with deprecated_read_fp, DEPRECATED_TARGET_READ_FP and DEPRECATED_REGNUM.
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|| regno == FCRIR_REGNUM || regno == DEPRECATED_FP_REGNUM
|| (regno >= FIRST_EMBED_REGNUM && regno <= LAST_EMBED_REGNUM))
return;
regaddr = register_ptrace_addr (regno);
errno = 0;
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ptrace (PT_WRITE_U, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) regaddr,
read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
else
{
for (regno = 0; regno < NUM_REGS; regno++)
store_inferior_registers (regno);
}
}
/* 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
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get_longjmp_target (CORE_ADDR *pc)
{
CORE_ADDR jb_addr;
char *buf;
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.
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*pc = extract_unsigned_integer (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
return 1;
}
/* Extract the register values out of the core file and store
them where `read_register' will find them.
CORE_REG_SECT points to the register values themselves, read into memory.
CORE_REG_SIZE is the size of that area.
WHICH says which set of registers we are handling (0 = int, 2 = float
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on machines where they are discontiguous).
REG_ADDR is the offset from u.u_ar0 to the register values relative to
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core_reg_sect. This is used with old-fashioned core files to
locate the registers in a large upage-plus-stack ".reg" section.
Original upage address X is at location core_reg_sect+x+reg_addr.
*/
static void
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fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR reg_addr)
{
register int regno;
register unsigned int addr;
int bad_reg = -1;
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register reg_ptr = -reg_addr; /* Original u.u_ar0 is -reg_addr. */
char zerobuf[MAX_REGISTER_SIZE];
memset (zerobuf, 0, MAX_REGISTER_SIZE);
/* If u.u_ar0 was an absolute address in the core file, relativize it now,
so we can use it as an offset into core_reg_sect. When we're done,
"register 0" will be at core_reg_sect+reg_ptr, and we can use
register_addr to offset to the other registers. If this is a modern
core file without a upage, reg_ptr will be zero and this is all a big
NOP. */
if (reg_ptr > core_reg_size)
#ifdef KERNEL_U_ADDR
reg_ptr -= KERNEL_U_ADDR;
#else
error ("Old mips core file can't be processed on this machine.");
#endif
for (regno = 0; regno < NUM_REGS; regno++)
{
addr = register_addr (regno, reg_ptr);
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if (addr >= core_reg_size)
{
if (bad_reg < 0)
bad_reg = regno;
}
else
{
supply_register (regno, core_reg_sect + addr);
}
}
if (bad_reg >= 0)
{
error ("Register %s not found in core file.", REGISTER_NAME (bad_reg));
}
supply_register (ZERO_REGNUM, zerobuf);
/* Frame ptr reg must appear to be 0; it is faked by stack handling code. */
2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (DEPRECATED_TARGET_READ_FP): Replace TARGET_READ_FP. (DEPRECATED_FP_REGNUM): Replace FP_REGNUM. * gdbarch.h, gdbarch.c: Re-generate. * infcall.c (call_function_by_hand): Use DEPRECATED_FP_REGNUM, DEPRECATED_TARGET_READ_FP, or "sp" to create the dummy frame ID. * inferior.h (deprecated_read_fp): Rename read_fp. (generic_target_read_fp): Delete declaration. * regcache.c (generic_target_read_fp): Delete function. (deprecated_read_fp): Replace read_fp, use DEPRECATED_TARGET_READ_FP or DEPRECATED_FP_REGNUM. * d10v-tdep.c (d10v_read_fp): Delete function. (d10v_gdbarch_init): Do not set deprecated_read_fp. * sparc-tdep.c (sparc_gdbarch_init): Do not set deprecated_target_read_fp to generic_target_read_fp. * sh-tdep.c (sh_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * xstormy16-tdep.c (xstormy16_gdbarch_init): Set deprecated_fp_regnum. * x86-64-tdep.c (x86_64_init_abi): Ditto. * vax-tdep.c (vax_gdbarch_init): Ditto. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mcore-tdep.c (mcore_gdbarch_init): Ditto. * m68k-tdep.c (m68k_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * i386-tdep.c (i386_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * h8300-tdep.c (h8300_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * cris-tdep.c (cris_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * alpha-tdep.c (alpha_gdbarch_init): Ditto. * x86-64-tdep.c (x86_64_init_abi): Set deprecated_target_read_fp. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mips-tdep.c (mips_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * vax-tdep.c (vax_frame_init_saved_regs): Replace FP_REGNUM with DEPRECATED_FP_REGNUM. (vax_push_dummy_frame, vax_pop_frame): Ditto. * std-regs.c (value_of_builtin_frame_fp_reg): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Ditto. (sparc_push_dummy_frame, sparc64_read_fp): Ditto. (sparc32_register_virtual_type): Ditto. * sh-tdep.c (sh64_frame_chain): Ditto. (sh64_get_saved_register, sh64_pop_frame): Ditto. (sh_nofp_frame_init_saved_regs): Ditto. (sh64_nofp_frame_init_saved_regs): Ditto. (sh_fp_frame_init_saved_regs): Ditto. * remote-mips.c (mips_wait, mips_fetch_registers): Ditto. * remote-e7000.c (fetch_regs_from_dump): Ditto. * procfs.c (procfs_fetch_registers): Ditto. (procfs_store_registers): Ditto. * ns32knbsd-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. (fetch_kcore_registers, clear_regs): Ditto. * ns32k-tdep.c (ns32k_frame_init_saved_regs): Ditto. (ns32k_push_dummy_frame, ns32k_pop_frame): Ditto. * nlm/i386.h (DEPRECATED_FP_REGNUM): Ditto. * nlm/i386.c (do_status): Ditto. * mipsv4-nat.c (supply_gregset): Ditto. * mips-tdep.c: Ditto for comments. * mips-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. * m68k-tdep.c (m68k_push_dummy_frame): Ditto. (m68k_pop_frame, m68k_frame_init_saved_regs): Ditto. * i386-tdep.c (i386_frame_init_saved_regs): Ditto. (i386_do_pop_frame, i386_register_type): Ditto. * hppa-tdep.c (hppa_frame_chain): Ditto. (hppa_push_dummy_frame, find_dummy_frame_regs): Ditto. (hppa_pop_frame, hppa_read_fp): Ditto. (skip_prologue_hard_way, hppa_frame_find_saved_regs): Ditto. * cris-tdep.c (cris_examine, cris_pop_frame): Ditto. * config/vax/nm-vax.h (REGISTER_U_ADDR): Ditto. * config/sparc/tm-sparc.h (DEPRECATED_FP_REGNUM): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_FP_REGNUM): Ditto. * config/s390/tm-s390.h (DEPRECATED_FP_REGNUM): Ditto. * config/pa/tm-hppa64.h (DEPRECATED_FP_REGNUM): Ditto. * config/ia64/tm-ia64.h (DEPRECATED_FP_REGNUM): Ditto. * blockframe.c: Ditto for comments. * arch-utils.h: Ditto for comments. * arch-utils.c (legacy_virtual_frame_pointer): Ditto. * alphanbsd-tdep.c (fetch_core_registers): Ditto. * alphabsd-nat.c (fetch_inferior_registers): Ditto. * alpha-tdep.h: Ditto for comments. * alpha-tdep.c (alpha_cannot_fetch_register): Ditto. (alpha_cannot_store_register): Ditto. (alpha_push_dummy_frame): Ditto. * alpha-nat.c (supply_gregset): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_TARGET_READ_FP): Update. * config/pa/tm-hppa64.h (DEPRECATED_TARGET_READ_FP): Update. * config/sparc/tm-sparc.h: Update comment. * hppa-tdep.c (hppa_init_extra_frame_info): Use deprecated_read_fp instead of TARGET_READ_FP. (hppa_init_extra_frame_info, hppa_frame_chain): Ditto. (hppa_push_dummy_frame, hppa_read_fp): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Use deprecated_read_fp instead of read_fp. * s390-tdep.c (s390_push_arguments): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * frame.h: Ditto in comments. * frame.c (legacy_get_prev_frame): Ditto. * dummy-frame.c (dummy_frame_this_id): Ditto. * arm-tdep.c (arm_init_extra_frame_info): Ditto. 2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Target Architecture Definition): Replace read_fp, TARGET_READ_FP and FP_REGNUM, with deprecated_read_fp, DEPRECATED_TARGET_READ_FP and DEPRECATED_REGNUM.
2003-04-29 01:49:49 +00:00
supply_register (DEPRECATED_FP_REGNUM, zerobuf);
}
/* Return the address in the core dump or inferior of register REGNO.
BLOCKEND is the address of the end of the user structure. */
CORE_ADDR
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register_addr (int regno, CORE_ADDR blockend)
{
CORE_ADDR addr;
if (regno < 0 || regno >= NUM_REGS)
error ("Invalid register number %d.", regno);
REGISTER_U_ADDR (addr, blockend, regno);
return addr;
}
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/* Register that we are able to handle mips core file formats.
FIXME: is this really bfd_target_unknown_flavour? */
static struct core_fns mips_core_fns =
{
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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
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_initialize_core_mips (void)
{
add_core_fns (&mips_core_fns);
}