aboutsummaryrefslogtreecommitdiff
path: root/gdb/sun386-xdep.c
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/sun386-xdep.c')
-rw-r--r--gdb/sun386-xdep.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/gdb/sun386-xdep.c b/gdb/sun386-xdep.c
deleted file mode 100644
index 7da605b..0000000
--- a/gdb/sun386-xdep.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/* Machine-dependent code for host Sun 386i's for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
- Changes for sun386i by Jean Daniel Fekete (jdf@litp.univ-p6-7.fr),
- C2V Paris, April 89.
-
-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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#if defined (GDB_TARGET_IS_SUN386)
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "gdbcore.h"
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <sys/user.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/core.h>
-
-
-void
-fetch_inferior_registers (regno)
- int regno;
-{
- struct regs inferior_registers;
- struct fp_state inferior_fp_registers;
- extern char registers[];
-
- registers_fetched ();
-
- ptrace (PTRACE_GETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers);
- ptrace (PTRACE_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers);
-
- bcopy (&inferior_registers, registers, sizeof inferior_registers);
-
- bcopy (inferior_fp_registers.f_st,&registers[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.f_st);
- bcopy (&inferior_fp_registers.f_ctrl,
- &registers[REGISTER_BYTE (FPC_REGNUM)],
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st);
-}
-
-/* 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
-store_inferior_registers (regno)
- int regno;
-{
- struct regs inferior_registers;
- struct fp_state inferior_fp_registers;
- extern char registers[];
-
- bcopy (registers, &inferior_registers, 20 * 4);
-
- bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)],inferior_fp_registers.f_st,
- sizeof inferior_fp_registers.f_st);
- bcopy (&registers[REGISTER_BYTE (FPC_REGNUM)],
- &inferior_fp_registers.f_ctrl,
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st);
-
-#ifdef PTRACE_FP_BUG
- if (regno == FP_REGNUM || regno == -1)
- /* Storing the frame pointer requires a gross hack, in which an
- instruction that moves eax into ebp gets single-stepped. */
- {
- int stack = inferior_registers.r_reg[SP_REGNUM];
- int stuff = ptrace (PTRACE_PEEKDATA, inferior_pid,
- (PTRACE_ARG3_TYPE) stack);
- int reg = inferior_registers.r_reg[EAX];
- inferior_registers.r_reg[EAX] =
- inferior_registers.r_reg[FP_REGNUM];
- ptrace (PTRACE_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers);
- ptrace (PTRACE_POKEDATA, inferior_pid, (PTRACE_ARG3_TYPE) stack,
- 0xc589);
- ptrace (PTRACE_SINGLESTEP, inferior_pid, (PTRACE_ARG3_TYPE) stack,
- 0);
- wait (0);
- ptrace (PTRACE_POKEDATA, inferior_pid, (PTRACE_ARG3_TYPE) stack,
- stuff);
- inferior_registers.r_reg[EAX] = reg;
- }
-#endif
- ptrace (PTRACE_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers);
- ptrace (PTRACE_SETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers);
-}
-
-/* Machine-dependent code which would otherwise be in core.c */
-/* Work with core files, for GDB. */
-
-
-void
-core_file_command (filename, from_tty)
- char *filename;
- int from_tty;
-{
- int val;
- extern char registers[];
-
- /* Discard all vestiges of any previous core file
- and mark data and stack spaces as empty. */
-
- if (corefile)
- free (corefile);
- corefile = 0;
-
- if (corechan >= 0)
- close (corechan);
- corechan = -1;
-
- data_start = 0;
- data_end = 0;
- stack_start = STACK_END_ADDR;
- stack_end = STACK_END_ADDR;
-
- /* Now, if a new core file was specified, open it and digest it. */
-
- if (filename)
- {
- filename = tilde_expand (filename);
- make_cleanup (free, filename);
-
- if (have_inferior_p ())
- error ("To look at a core file, you must kill the inferior with \"kill\".");
- corechan = open (filename, O_RDONLY, 0);
- if (corechan < 0)
- perror_with_name (filename);
-
- {
- struct core corestr;
-
- val = myread (corechan, &corestr, sizeof corestr);
- if (val < 0)
- perror_with_name (filename);
- if (corestr.c_magic != CORE_MAGIC)
- error ("\"%s\" does not appear to be a core dump file (magic 0x%x, expected 0x%x)",
- filename, corestr.c_magic, (int) CORE_MAGIC);
- else if (sizeof (struct core) != corestr.c_len)
- error ("\"%s\" has an invalid struct core length (%d, expected %d)",
- filename, corestr.c_len, (int) sizeof (struct core));
-
- data_start = exec_data_start;
- data_end = data_start + corestr.c_dsize;
- stack_start = stack_end - corestr.c_ssize;
- data_offset = sizeof corestr;
- stack_offset = sizeof corestr + corestr.c_dsize;
-
- bcopy (&corestr.c_regs, registers, sizeof corestr.c_regs);
-
- bcopy (corestr.c_fpu.f_fpstatus.f_st,
- &registers[REGISTER_BYTE (FP0_REGNUM)],
- sizeof corestr.c_fpu.f_fpstatus.f_st);
- bcopy (&corestr.c_fpu.f_fpstatus.f_ctrl,
- &registers[REGISTER_BYTE (FPC_REGNUM)],
- sizeof corestr.c_fpu.f_fpstatus -
- sizeof corestr.c_fpu.f_fpstatus.f_st);
-
- /* the struct aouthdr of sun coff is not the struct exec stored
- in the core file. */
- bcopy (&corestr.c_aouthdr, &core_aouthdr, sizeof (struct exec));
-#ifndef COFF_ENCAPSULATE
- core_aouthdr.magic = corestr.c_aouthdr.a_info;
- core_aouthdr.vstamp = /*SUNVERSION*/ 31252;
-#endif
- printf ("Core file is from \"%s\".\n", corestr.c_cmdname);
- if (corestr.c_signo > 0)
- printf ("Program terminated with signal %d, %s.\n",
- corestr.c_signo, safe_strsignal (corestr.c_signo));
- }
- if (filename[0] == '/')
- corefile = savestring (filename, strlen (filename));
- else
- {
- corefile = concat (current_directory, "/", filename, NULL);
- }
-
- set_current_frame ( create_new_frame (read_register (FP_REGNUM),
- read_pc ()));
- select_frame (get_current_frame (), 0);
-
- validate_files ();
- }
- else if (from_tty)
- printf ("No core file now.\n");
-}
-
-i387_to_double (from, to)
- char *from;
- char *to;
-{
- long *lp;
- /* push extended mode on 387 stack, then pop in double mode
- *
- * first, set exception masks so no error is generated -
- * number will be rounded to inf or 0, if necessary
- */
- asm ("pushl %eax"); /* grab a stack slot */
- asm ("fstcw (%esp)"); /* get 387 control word */
- asm ("movl (%esp),%eax"); /* save old value */
- asm ("orl $0x3f,%eax"); /* mask all exceptions */
- asm ("pushl %eax");
- asm ("fldcw (%esp)"); /* load new value into 387 */
-
- asm ("movl 8(%ebp),%eax");
- asm ("fldt (%eax)"); /* push extended number on 387 stack */
- asm ("fwait");
- asm ("movl 12(%ebp),%eax");
- asm ("fstpl (%eax)"); /* pop double */
- asm ("fwait");
-
- asm ("popl %eax"); /* flush modified control word */
- asm ("fnclex"); /* clear exceptions */
- asm ("fldcw (%esp)"); /* restore original control word */
- asm ("popl %eax"); /* flush saved copy */
-}
-
-double_to_i387 (from, to)
- char *from;
- char *to;
-{
- /* push double mode on 387 stack, then pop in extended mode
- * no errors are possible because every 64-bit pattern
- * can be converted to an extended
- */
- asm ("movl 8(%ebp),%eax");
- asm ("fldl (%eax)");
- asm ("fwait");
- asm ("movl 12(%ebp),%eax");
- asm ("fstpt (%eax)");
- asm ("fwait");
-}
-#else /* Not sun386 target. */
-
-/* These functions shouldn't be called when we're cross-debugging. */
-
-/* ARGSUSED */
-void
-fetch_inferior_registers (regno)
- int regno;
-{
-}
-
-/* ARGSUSED */
-void
-store_inferior_registers (regno)
- int regno;
-{
-}
-
-/* ARGSUSED */
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- unsigned int reg_addr; /* Unused in this version */
-{
-}
-
-#endif /* Not sun386 target. */
generated by cgit v1.1 at 2024-12-22 14:16:40 +0000