134 lines
3.9 KiB
C
134 lines
3.9 KiB
C
/* Machine independent support for Solaris 2 core files for GDB.
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Copyright 1994 Free Software Foundation, Inc.
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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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Solaris comes with two flavours of core files, cores generated by
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an ELF executable and cores generated by programs that were
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run under BCP (the part of Solaris which allows it to run SunOS4
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a.out files).
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This file combines the core register fetching from core-regset.c
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and sparc-nat.c to be able to read both flavours. */
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#include "defs.h"
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#undef gregset_t
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#undef fpregset_t
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#include <time.h>
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#include <sys/regset.h>
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#include <sys/procfs.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "gdb_string.h"
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#include "inferior.h"
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#include "target.h"
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#include "command.h"
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#include "gdbcore.h"
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static void
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fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
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char *core_reg_sect;
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unsigned core_reg_size;
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int which;
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unsigned int reg_addr; /* Unused in this version */
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{
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prgregset_t prgregset;
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prfpregset_t prfpregset;
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if (which == 0)
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{
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if (core_reg_size == sizeof (prgregset))
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{
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memcpy ((char *) &prgregset, core_reg_sect, sizeof (prgregset));
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supply_gregset (&prgregset);
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}
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else if (core_reg_size == sizeof (struct regs))
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{
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#define gregs ((struct regs *)core_reg_sect)
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/* G0 *always* holds 0. */
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*(int *)®isters[REGISTER_BYTE (0)] = 0;
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/* The globals and output registers. */
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memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &gregs->r_g1,
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15 * REGISTER_RAW_SIZE (G1_REGNUM));
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*(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps;
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*(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc;
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*(int *)®isters[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc;
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*(int *)®isters[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y;
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/* My best guess at where to get the locals and input
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registers is exactly where they usually are, right above
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the stack pointer. If the core dump was caused by a bus error
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from blowing away the stack pointer (as is possible) then this
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won't work, but it's worth the try. */
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{
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int sp;
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sp = *(int *)®isters[REGISTER_BYTE (SP_REGNUM)];
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if (0 != target_read_memory (sp,
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®isters[REGISTER_BYTE (L0_REGNUM)],
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16 * REGISTER_RAW_SIZE (L0_REGNUM)))
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{
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warning ("couldn't read input and local registers from core file\n");
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}
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}
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}
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else
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{
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warning ("wrong size gregset struct in core file");
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}
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}
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else if (which == 2)
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{
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if (core_reg_size == sizeof (prfpregset))
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{
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memcpy ((char *) &prfpregset, core_reg_sect, sizeof (prfpregset));
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supply_fpregset (&prfpregset);
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}
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else if (core_reg_size >= sizeof (struct fpu))
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{
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#define fpuregs ((struct fpu *) core_reg_sect)
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memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &fpuregs->fpu_fr,
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sizeof (fpuregs->fpu_fr));
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memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], &fpuregs->fpu_fsr,
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sizeof (FPU_FSR_TYPE));
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}
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else
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{
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warning ("wrong size fpregset struct in core file");
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}
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}
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}
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/* Register that we are able to handle solaris core file formats. */
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static struct core_fns solaris_core_fns =
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{
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bfd_target_elf_flavour,
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fetch_core_registers,
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NULL
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};
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void
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_initialize_core_solaris ()
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{
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add_core_fns (&solaris_core_fns);
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}
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