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578 |
markom |
/* OBSOLETE /* Native support for Sun 386i's for GDB, the GNU debugger. */
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/* OBSOLETE Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1995, 1999, 2000, 2001 */
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/* OBSOLETE Free Software Foundation, Inc. */
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/* OBSOLETE Changes for sun386i by Jean Daniel Fekete (jdf@litp.univ-p6-7.fr), */
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/* OBSOLETE C2V Paris, April 89. */
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/* OBSOLETE */
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/* OBSOLETE This file is part of GDB. */
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/* OBSOLETE */
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/* OBSOLETE This program is free software; you can redistribute it and/or modify */
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/* OBSOLETE it under the terms of the GNU General Public License as published by */
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/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
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/* OBSOLETE (at your option) any later version. */
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/* OBSOLETE */
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/* OBSOLETE This program is distributed in the hope that it will be useful, */
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/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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/* OBSOLETE GNU General Public License for more details. */
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/* OBSOLETE */
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/* OBSOLETE You should have received a copy of the GNU General Public License */
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/* OBSOLETE along with this program; if not, write to the Free Software */
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/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
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/* OBSOLETE Boston, MA 02111-1307, USA. */ */
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/* OBSOLETE */
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/* OBSOLETE #include "defs.h" */
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/* OBSOLETE #include "frame.h" */
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/* OBSOLETE #include "inferior.h" */
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/* OBSOLETE #include "gdbcore.h" */
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/* OBSOLETE #include "regcache.h" */
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/* OBSOLETE */
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/* OBSOLETE #include <sys/param.h> */
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/* OBSOLETE #include <sys/dir.h> */
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/* OBSOLETE #include <sys/user.h> */
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/* OBSOLETE #include <signal.h> */
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/* OBSOLETE #include <sys/ioctl.h> */
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/* OBSOLETE #include <fcntl.h> */
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/* OBSOLETE */
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/* OBSOLETE #include <sys/ptrace.h> */
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/* OBSOLETE #include <machine/reg.h> */
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/* OBSOLETE */
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/* OBSOLETE #include <sys/file.h> */
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/* OBSOLETE #include "gdb_stat.h" */
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/* OBSOLETE #include <sys/core.h> */
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/* OBSOLETE */
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/* OBSOLETE */
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/* OBSOLETE /* Machine-dependent code which would otherwise be in corefile.c */ */
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/* OBSOLETE /* Work with core files, for GDB. */ */
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/* OBSOLETE */
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/* OBSOLETE */
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/* OBSOLETE void */
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/* OBSOLETE core_file_command (char *filename, int from_tty) */
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/* OBSOLETE { */
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/* OBSOLETE int val; */
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/* OBSOLETE */
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/* OBSOLETE /* Discard all vestiges of any previous core file */
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/* OBSOLETE and mark data and stack spaces as empty. */ */
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/* OBSOLETE */
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/* OBSOLETE if (corefile) */
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/* OBSOLETE xfree (corefile); */
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/* OBSOLETE corefile = 0; */
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/* OBSOLETE */
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/* OBSOLETE if (corechan >= 0) */
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/* OBSOLETE close (corechan); */
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/* OBSOLETE corechan = -1; */
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/* OBSOLETE */
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/* OBSOLETE data_start = 0; */
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/* OBSOLETE data_end = 0; */
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/* OBSOLETE stack_start = STACK_END_ADDR; */
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/* OBSOLETE stack_end = STACK_END_ADDR; */
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/* OBSOLETE */
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/* OBSOLETE /* Now, if a new core file was specified, open it and digest it. */ */
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/* OBSOLETE */
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/* OBSOLETE if (filename) */
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/* OBSOLETE { */
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/* OBSOLETE filename = tilde_expand (filename); */
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/* OBSOLETE make_cleanup (xfree, filename); */
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/* OBSOLETE */
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/* OBSOLETE if (have_inferior_p ()) */
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/* OBSOLETE error ("To look at a core file, you must kill the program with \"kill\"."); */
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/* OBSOLETE corechan = open (filename, O_RDONLY, 0); */
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/* OBSOLETE if (corechan < 0) */
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/* OBSOLETE perror_with_name (filename); */
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/* OBSOLETE */
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/* OBSOLETE { */
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/* OBSOLETE struct core corestr; */
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/* OBSOLETE */
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/* OBSOLETE val = myread (corechan, &corestr, sizeof corestr); */
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/* OBSOLETE if (val < 0) */
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/* OBSOLETE perror_with_name (filename); */
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/* OBSOLETE if (corestr.c_magic != CORE_MAGIC) */
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/* OBSOLETE error ("\"%s\" does not appear to be a core dump file (magic 0x%x, expected 0x%x)", */
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/* OBSOLETE filename, corestr.c_magic, (int) CORE_MAGIC); */
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/* OBSOLETE else if (sizeof (struct core) != corestr.c_len) */
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/* OBSOLETE error ("\"%s\" has an invalid struct core length (%d, expected %d)", */
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/* OBSOLETE filename, corestr.c_len, (int) sizeof (struct core)); */
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/* OBSOLETE */
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/* OBSOLETE data_start = exec_data_start; */
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/* OBSOLETE data_end = data_start + corestr.c_dsize; */
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/* OBSOLETE stack_start = stack_end - corestr.c_ssize; */
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/* OBSOLETE data_offset = sizeof corestr; */
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/* OBSOLETE stack_offset = sizeof corestr + corestr.c_dsize; */
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/* OBSOLETE */
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/* OBSOLETE memcpy (registers, &corestr.c_regs, sizeof corestr.c_regs); */
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/* OBSOLETE */
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/* OBSOLETE memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], */
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/* OBSOLETE corestr.c_fpu.f_fpstatus.f_st, */
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/* OBSOLETE sizeof corestr.c_fpu.f_fpstatus.f_st); */
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/* OBSOLETE memcpy (®isters[REGISTER_BYTE (FPC_REGNUM)], */
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/* OBSOLETE &corestr.c_fpu.f_fpstatus.f_ctrl, */
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/* OBSOLETE sizeof corestr.c_fpu.f_fpstatus - */
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/* OBSOLETE sizeof corestr.c_fpu.f_fpstatus.f_st); */
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/* OBSOLETE */
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/* OBSOLETE /* the struct aouthdr of sun coff is not the struct exec stored */
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/* OBSOLETE in the core file. */ */
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/* OBSOLETE memcpy (&core_aouthdr, &corestr.c_aouthdr, sizeof (struct exec)); */
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/* OBSOLETE #ifndef COFF_ENCAPSULATE */
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/* OBSOLETE core_aouthdr.magic = corestr.c_aouthdr.a_info; */
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/* OBSOLETE core_aouthdr.vstamp = /*SUNVERSION */ 31252; */
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/* OBSOLETE #endif */
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/* OBSOLETE printf_unfiltered ("Core file is from \"%s\".\n", corestr.c_cmdname); */
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/* OBSOLETE if (corestr.c_signo > 0) */
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/* OBSOLETE printf_unfiltered ("Program terminated with signal %d, %s.\n", */
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/* OBSOLETE corestr.c_signo, safe_strsignal (corestr.c_signo)); */
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/* OBSOLETE } */
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/* OBSOLETE if (filename[0] == '/') */
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/* OBSOLETE corefile = savestring (filename, strlen (filename)); */
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/* OBSOLETE else */
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/* OBSOLETE { */
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/* OBSOLETE corefile = concat (current_directory, "/", filename, NULL); */
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE flush_cached_frames (); */
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/* OBSOLETE select_frame (get_current_frame (), 0); */
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/* OBSOLETE */
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/* OBSOLETE validate_files (); */
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/* OBSOLETE } */
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/* OBSOLETE else if (from_tty) */
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/* OBSOLETE printf_unfiltered ("No core file now.\n"); */
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE i387_to_double (char *from, char *to) */
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/* OBSOLETE { */
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/* OBSOLETE long *lp; */
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/* OBSOLETE /* push extended mode on 387 stack, then pop in double mode */
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/* OBSOLETE */
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/* OBSOLETE * first, set exception masks so no error is generated - */
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/* OBSOLETE * number will be rounded to inf or 0, if necessary */
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/* OBSOLETE */ */
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/* OBSOLETE asm ("pushl %eax"); /* grab a stack slot */ */
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/* OBSOLETE asm ("fstcw (%esp)"); /* get 387 control word */ */
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/* OBSOLETE asm ("movl (%esp),%eax"); /* save old value */ */
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/* OBSOLETE asm ("orl $0x3f,%eax"); /* mask all exceptions */ */
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/* OBSOLETE asm ("pushl %eax"); */
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/* OBSOLETE asm ("fldcw (%esp)"); /* load new value into 387 */ */
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/* OBSOLETE */
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/* OBSOLETE asm ("movl 8(%ebp),%eax"); */
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/* OBSOLETE asm ("fldt (%eax)"); /* push extended number on 387 stack */ */
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/* OBSOLETE asm ("fwait"); */
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/* OBSOLETE asm ("movl 12(%ebp),%eax"); */
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/* OBSOLETE asm ("fstpl (%eax)"); /* pop double */ */
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/* OBSOLETE asm ("fwait"); */
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/* OBSOLETE */
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/* OBSOLETE asm ("popl %eax"); /* flush modified control word */ */
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/* OBSOLETE asm ("fnclex"); /* clear exceptions */ */
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/* OBSOLETE asm ("fldcw (%esp)"); /* restore original control word */ */
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/* OBSOLETE asm ("popl %eax"); /* flush saved copy */ */
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE double_to_i387 (char *from, char *to) */
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/* OBSOLETE { */
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/* OBSOLETE /* push double mode on 387 stack, then pop in extended mode */
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/* OBSOLETE * no errors are possible because every 64-bit pattern */
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/* OBSOLETE * can be converted to an extended */
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/* OBSOLETE */ */
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/* OBSOLETE asm ("movl 8(%ebp),%eax"); */
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/* OBSOLETE asm ("fldl (%eax)"); */
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/* OBSOLETE asm ("fwait"); */
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/* OBSOLETE asm ("movl 12(%ebp),%eax"); */
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/* OBSOLETE asm ("fstpt (%eax)"); */
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| 179 |
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/* OBSOLETE asm ("fwait"); */
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| 180 |
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE void */
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/* OBSOLETE fetch_inferior_registers (int regno) */
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/* OBSOLETE { */
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/* OBSOLETE struct regs inferior_registers; */
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/* OBSOLETE struct fp_state inferior_fp_registers; */
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/* OBSOLETE */
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| 188 |
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/* OBSOLETE registers_fetched (); */
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| 189 |
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/* OBSOLETE */
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| 190 |
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/* OBSOLETE ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid), */
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/* OBSOLETE (PTRACE_ARG3_TYPE) & inferior_registers); */
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| 192 |
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/* OBSOLETE ptrace (PTRACE_GETFPREGS, PIDGET (inferior_ptid), */
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/* OBSOLETE (PTRACE_ARG3_TYPE) & inferior_fp_registers); */
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| 194 |
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/* OBSOLETE */
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| 195 |
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/* OBSOLETE memcpy (registers, &inferior_registers, sizeof inferior_registers); */
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/* OBSOLETE */
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| 197 |
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/* OBSOLETE memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], inferior_fp_registers.f_st, */
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| 198 |
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/* OBSOLETE sizeof inferior_fp_registers.f_st); */
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| 199 |
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/* OBSOLETE memcpy (®isters[REGISTER_BYTE (FPC_REGNUM)], */
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| 200 |
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/* OBSOLETE &inferior_fp_registers.f_ctrl, */
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| 201 |
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/* OBSOLETE sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st); */
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| 202 |
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/* OBSOLETE } */
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| 203 |
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/* OBSOLETE */
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| 204 |
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/* OBSOLETE /* Store our register values back into the inferior. */
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/* OBSOLETE If REGNO is -1, do this for all registers. */
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| 206 |
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/* OBSOLETE Otherwise, REGNO specifies which register (so we can save time). */ */
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/* OBSOLETE */
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| 208 |
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/* OBSOLETE void */
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| 209 |
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/* OBSOLETE store_inferior_registers (int regno) */
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| 210 |
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/* OBSOLETE { */
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| 211 |
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/* OBSOLETE struct regs inferior_registers; */
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| 212 |
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/* OBSOLETE struct fp_state inferior_fp_registers; */
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| 213 |
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/* OBSOLETE */
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| 214 |
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/* OBSOLETE memcpy (&inferior_registers, registers, 20 * 4); */
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| 215 |
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/* OBSOLETE */
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| 216 |
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/* OBSOLETE memcpy (inferior_fp_registers.f_st, */
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| 217 |
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/* OBSOLETE ®isters[REGISTER_BYTE (FP0_REGNUM)], */
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| 218 |
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/* OBSOLETE sizeof inferior_fp_registers.f_st); */
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| 219 |
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/* OBSOLETE memcpy (&inferior_fp_registers.f_ctrl, */
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| 220 |
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/* OBSOLETE ®isters[REGISTER_BYTE (FPC_REGNUM)], */
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| 221 |
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/* OBSOLETE sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st); */
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| 222 |
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/* OBSOLETE */
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| 223 |
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/* OBSOLETE #ifdef PTRACE_FP_BUG */
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| 224 |
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/* OBSOLETE if (regno == FP_REGNUM || regno == -1) */
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| 225 |
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/* OBSOLETE /* Storing the frame pointer requires a gross hack, in which an */
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| 226 |
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/* OBSOLETE instruction that moves eax into ebp gets single-stepped. */ */
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| 227 |
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/* OBSOLETE { */
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| 228 |
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/* OBSOLETE int stack = inferior_registers.r_reg[SP_REGNUM]; */
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| 229 |
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/* OBSOLETE int stuff = ptrace (PTRACE_PEEKDATA, PIDGET (inferior_ptid), */
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| 230 |
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/* OBSOLETE (PTRACE_ARG3_TYPE) stack); */
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| 231 |
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/* OBSOLETE int reg = inferior_registers.r_reg[EAX]; */
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| 232 |
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/* OBSOLETE inferior_registers.r_reg[EAX] = */
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| 233 |
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/* OBSOLETE inferior_registers.r_reg[FP_REGNUM]; */
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| 234 |
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/* OBSOLETE ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid), */
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| 235 |
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/* OBSOLETE (PTRACE_ARG3_TYPE) & inferior_registers); */
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| 236 |
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/* OBSOLETE ptrace (PTRACE_POKEDATA, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) stack, */
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| 237 |
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/* OBSOLETE 0xc589); */
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| 238 |
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/* OBSOLETE ptrace (PTRACE_SINGLESTEP, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) stack, */
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| 239 |
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/* OBSOLETE 0); */
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| 240 |
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/* OBSOLETE wait (0); */
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| 241 |
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/* OBSOLETE ptrace (PTRACE_POKEDATA, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) stack, */
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| 242 |
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/* OBSOLETE stuff); */
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| 243 |
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/* OBSOLETE inferior_registers.r_reg[EAX] = reg; */
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| 244 |
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/* OBSOLETE } */
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| 245 |
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/* OBSOLETE #endif */
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| 246 |
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/* OBSOLETE ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid), */
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| 247 |
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/* OBSOLETE (PTRACE_ARG3_TYPE) & inferior_registers); */
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| 248 |
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/* OBSOLETE ptrace (PTRACE_SETFPREGS, PIDGET (inferior_ptid), */
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| 249 |
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/* OBSOLETE (PTRACE_ARG3_TYPE) & inferior_fp_registers); */
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| 250 |
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/* OBSOLETE } */
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