-/* Acorn Risc Machine host machine support.
- Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
-
- 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "opcode/arm.h"
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-#define N_TXTADDR(hdr) 0x8000
-#define N_DATADDR(hdr) (hdr.a_text + 0x8000)
-
-#include "gdbcore.h"
-
-#include <sys/user.h> /* After a.out.h */
-#include <sys/file.h>
-#include "gdb_stat.h"
-
-#include <errno.h>
-
-void
-fetch_inferior_registers (regno)
- int regno; /* Original value discarded */
-{
- register unsigned int regaddr;
- char buf[MAX_REGISTER_RAW_SIZE];
- register int i;
-
- struct user u;
- unsigned int offset = (char *) &u.u_ar0 - (char *) &u;
- offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0)
- - KERNEL_U_ADDR;
-
- registers_fetched ();
-
- for (regno = 0; regno < 16; regno++)
- {
- regaddr = offset + regno * 4;
- *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid,
- (PTRACE_ARG3_TYPE) regaddr, 0);
- if (regno == PC_REGNUM)
- *(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]);
- supply_register (regno, buf);
- }
- *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid,
- (PTRACE_ARG3_TYPE) (offset + PC * 4), 0);
- supply_register (PS_REGNUM, buf); /* set virtual register ps same as pc */
-
- /* read the floating point registers */
- offset = (char *) &u.u_fp_regs - (char *) &u;
- *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0);
- supply_register (FPS_REGNUM, buf);
- for (regno = 16; regno < 24; regno++)
- {
- regaddr = offset + 4 + 12 * (regno - 16);
- for (i = 0; i < 12; i += sizeof (int))
- *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
- (PTRACE_ARG3_TYPE) (regaddr + i), 0);
- supply_register (regno, buf);
- }
-}
-
-/* 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;
-{
- register unsigned int regaddr;
- char buf[80];
-
- struct user u;
- unsigned long value;
- unsigned int offset = (char *) &u.u_ar0 - (char *) &u;
- offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0)
- - KERNEL_U_ADDR;
-
- if (regno >= 0)
- {
- if (regno >= 16)
- return;
- regaddr = offset + 4 * regno;
- errno = 0;
- value = read_register (regno);
- if (regno == PC_REGNUM)
- value = SET_PC_PART (read_register (PS_REGNUM), value);
- ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
- if (errno != 0)
- {
- sprintf (buf, "writing register number %d", regno);
- perror_with_name (buf);
- }
- }
- else
- for (regno = 0; regno < 15; regno++)
- {
- regaddr = offset + regno * 4;
- errno = 0;
- value = read_register (regno);
- if (regno == PC_REGNUM)
- value = SET_PC_PART (read_register (PS_REGNUM), value);
- ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
- if (errno != 0)
- {
- sprintf (buf, "writing all regs, number %d", regno);
- perror_with_name (buf);
- }
- }
-}
-\f
-/* Work with core dump and executable files, for GDB.
- This code would be in corefile.c if it weren't machine-dependent. */
-
-/* Structure to describe the chain of shared libraries used
- by the execfile.
- e.g. prog shares Xt which shares X11 which shares c. */
-
-struct shared_library
-{
- struct exec_header header;
- char name[SHLIBLEN];
- CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file */
- long data_offset; /* offset of data section in file */
- int chan; /* file descriptor for the file */
- struct shared_library *shares; /* library this one shares */
-};
-static struct shared_library *shlib = 0;
-
-/* Hook for `exec_file_command' command to call. */
-
-extern void (*exec_file_display_hook) ();
-
-static CORE_ADDR unshared_text_start;
-
-/* extended header from exec file (for shared library info) */
-
-static struct exec_header exec_header;
-\f
-void
-core_file_command (filename, from_tty)
- char *filename;
- int from_tty;
-{
- int val;
-
- /* 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 program with \"kill\".");
- corechan = open (filename, O_RDONLY, 0);
- if (corechan < 0)
- perror_with_name (filename);
- /* 4.2-style (and perhaps also sysV-style) core dump file. */
- {
- struct user u;
-
- unsigned int reg_offset, fp_reg_offset;
-
- val = myread (corechan, &u, sizeof u);
- if (val < 0)
- perror_with_name ("Not a core file: reading upage");
- if (val != sizeof u)
- error ("Not a core file: could only read %d bytes", val);
-
- /* We are depending on exec_file_command having been called
- previously to set exec_data_start. Since the executable
- and the core file share the same text segment, the address
- of the data segment will be the same in both. */
- data_start = exec_data_start;
-
- data_end = data_start + NBPG * u.u_dsize;
- stack_start = stack_end - NBPG * u.u_ssize;
- data_offset = NBPG * UPAGES;
- stack_offset = NBPG * (UPAGES + u.u_dsize);
-
- /* Some machines put an absolute address in here and some put
- the offset in the upage of the regs. */
- reg_offset = (int) u.u_ar0;
- if (reg_offset > NBPG * UPAGES)
- reg_offset -= KERNEL_U_ADDR;
- fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u;
-
- /* I don't know where to find this info.
- So, for now, mark it as not available. */
- N_SET_MAGIC (core_aouthdr, 0);
-
- /* Read the register values out of the core file and store
- them where `read_register' will find them. */
-
- {
- register int regno;
-
- for (regno = 0; regno < NUM_REGS; regno++)
- {
- char buf[MAX_REGISTER_RAW_SIZE];
-
- if (regno < 16)
- val = lseek (corechan, reg_offset + 4 * regno, 0);
- else if (regno < 24)
- val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0);
- else if (regno == 24)
- val = lseek (corechan, fp_reg_offset, 0);
- else if (regno == 25)
- val = lseek (corechan, reg_offset + 4 * PC, 0);
- if (val < 0
- || (val = myread (corechan, buf, sizeof buf)) < 0)
- {
- char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno))
- + 30);
- strcpy (buffer, "Reading register ");
- strcat (buffer, REGISTER_NAME (regno));
-
- perror_with_name (buffer);
- }
-
- if (regno == PC_REGNUM)
- *(int *) buf = GET_PC_PART (*(int *) buf);
- supply_register (regno, buf);
- }
- }
- }
- if (filename[0] == '/')
- corefile = savestring (filename, strlen (filename));
- else
- {
- corefile = concat (current_directory, "/", filename, NULL);
- }
-
- flush_cached_frames ();
- select_frame (get_current_frame (), 0);
- validate_files ();
- }
- else if (from_tty)
- printf ("No core file now.\n");
-}
-
-#if 0
-/* Work with core dump and executable files, for GDB.
- This code would be in corefile.c if it weren't machine-dependent. */
-
-/* Structure to describe the chain of shared libraries used
- by the execfile.
- e.g. prog shares Xt which shares X11 which shares c. */
-
-struct shared_library
-{
- struct exec_header header;
- char name[SHLIBLEN];
- CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file */
- long data_offset; /* offset of data section in file */
- int chan; /* file descriptor for the file */
- struct shared_library *shares; /* library this one shares */
-};
-static struct shared_library *shlib = 0;
-
-/* Hook for `exec_file_command' command to call. */
-
-extern void (*exec_file_display_hook) ();
-
-static CORE_ADDR unshared_text_start;
-
-/* extended header from exec file (for shared library info) */
-
-static struct exec_header exec_header;
-
-void
-exec_file_command (filename, from_tty)
- char *filename;
- int from_tty;
-{
- int val;
-
- /* Eliminate all traces of old exec file.
- Mark text segment as empty. */
-
- if (execfile)
- free (execfile);
- execfile = 0;
- data_start = 0;
- data_end -= exec_data_start;
- text_start = 0;
- unshared_text_start = 0;
- text_end = 0;
- exec_data_start = 0;
- exec_data_end = 0;
- if (execchan >= 0)
- close (execchan);
- execchan = -1;
- if (shlib)
- {
- close_shared_library (shlib);
- shlib = 0;
- }
-
- /* Now open and digest the file the user requested, if any. */
-
- if (filename)
- {
- filename = tilde_expand (filename);
- make_cleanup (free, filename);
-
- execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0,
- &execfile);
- if (execchan < 0)
- perror_with_name (filename);
-
- {
- struct stat st_exec;
-
-#ifdef HEADER_SEEK_FD
- HEADER_SEEK_FD (execchan);
-#endif
-
- val = myread (execchan, &exec_header, sizeof exec_header);
- exec_aouthdr = exec_header.a_exec;
-
- if (val < 0)
- perror_with_name (filename);
-
- text_start = 0x8000;
-
- /* Look for shared library if needed */
- if (exec_header.a_exec.a_magic & MF_USES_SL)
- shlib = open_shared_library (exec_header.a_shlibname, text_start);
-
- text_offset = N_TXTOFF (exec_aouthdr);
- exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text;
-
- if (shlib)
- {
- unshared_text_start = shared_text_end (shlib) & ~0x7fff;
- stack_start = shlib->header.a_exec.a_sldatabase;
- stack_end = STACK_END_ADDR;
- }
- else
- unshared_text_start = 0x8000;
- text_end = unshared_text_start + exec_aouthdr.a_text;
-
- exec_data_start = unshared_text_start + exec_aouthdr.a_text;
- exec_data_end = exec_data_start + exec_aouthdr.a_data;
-
- data_start = exec_data_start;
- data_end += exec_data_start;
-
- fstat (execchan, &st_exec);
- exec_mtime = st_exec.st_mtime;
- }
-
- validate_files ();
- }
- else if (from_tty)
- printf ("No executable file now.\n");
-
- /* Tell display code (if any) about the changed file name. */
- if (exec_file_display_hook)
- (*exec_file_display_hook) (filename);
-}
-#endif
-
-#if 0
-/* Read from the program's memory (except for inferior processes).
- This function is misnamed, since it only reads, never writes; and
- since it will use the core file and/or executable file as necessary.
-
- It should be extended to write as well as read, FIXME, for patching files.
-
- Return 0 if address could be read, EIO if addresss out of bounds. */
-
-int
-xfer_core_file (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- register int i;
- register int val;
- int xferchan;
- char **xferfile;
- int fileptr;
- int returnval = 0;
-
- while (len > 0)
- {
- xferfile = 0;
- xferchan = 0;
-
- /* Determine which file the next bunch of addresses reside in,
- and where in the file. Set the file's read/write pointer
- to point at the proper place for the desired address
- and set xferfile and xferchan for the correct file.
-
- If desired address is nonexistent, leave them zero.
-
- i is set to the number of bytes that can be handled
- along with the next address.
-
- We put the most likely tests first for efficiency. */
-
- /* Note that if there is no core file
- data_start and data_end are equal. */
- if (memaddr >= data_start && memaddr < data_end)
- {
- i = min (len, data_end - memaddr);
- fileptr = memaddr - data_start + data_offset;
- xferfile = &corefile;
- xferchan = corechan;
- }
- /* Note that if there is no core file
- stack_start and stack_end define the shared library data. */
- else if (memaddr >= stack_start && memaddr < stack_end)
- {
- if (corechan < 0)
- {
- struct shared_library *lib;
- for (lib = shlib; lib; lib = lib->shares)
- if (memaddr >= lib->header.a_exec.a_sldatabase &&
- memaddr < lib->header.a_exec.a_sldatabase +
- lib->header.a_exec.a_data)
- break;
- if (lib)
- {
- i = min (len, lib->header.a_exec.a_sldatabase +
- lib->header.a_exec.a_data - memaddr);
- fileptr = lib->data_offset + memaddr -
- lib->header.a_exec.a_sldatabase;
- xferfile = execfile;
- xferchan = lib->chan;
- }
- }
- else
- {
- i = min (len, stack_end - memaddr);
- fileptr = memaddr - stack_start + stack_offset;
- xferfile = &corefile;
- xferchan = corechan;
- }
- }
- else if (corechan < 0
- && memaddr >= exec_data_start && memaddr < exec_data_end)
- {
- i = min (len, exec_data_end - memaddr);
- fileptr = memaddr - exec_data_start + exec_data_offset;
- xferfile = &execfile;
- xferchan = execchan;
- }
- else if (memaddr >= text_start && memaddr < text_end)
- {
- struct shared_library *lib;
- for (lib = shlib; lib; lib = lib->shares)
- if (memaddr >= lib->text_start &&
- memaddr < lib->text_start + lib->header.a_exec.a_text)
- break;
- if (lib)
- {
- i = min (len, lib->header.a_exec.a_text +
- lib->text_start - memaddr);
- fileptr = memaddr - lib->text_start + text_offset;
- xferfile = &execfile;
- xferchan = lib->chan;
- }
- else
- {
- i = min (len, text_end - memaddr);
- fileptr = memaddr - unshared_text_start + text_offset;
- xferfile = &execfile;
- xferchan = execchan;
- }
- }
- else if (memaddr < text_start)
- {
- i = min (len, text_start - memaddr);
- }
- else if (memaddr >= text_end
- && memaddr < (corechan >= 0 ? data_start : exec_data_start))
- {
- i = min (len, data_start - memaddr);
- }
- else if (corechan >= 0
- && memaddr >= data_end && memaddr < stack_start)
- {
- i = min (len, stack_start - memaddr);
- }
- else if (corechan < 0 && memaddr >= exec_data_end)
- {
- i = min (len, -memaddr);
- }
- else if (memaddr >= stack_end && stack_end != 0)
- {
- i = min (len, -memaddr);
- }
- else
- {
- /* Address did not classify into one of the known ranges.
- This shouldn't happen; we catch the endpoints. */
- internal_error ("Bad case logic in xfer_core_file.");
- }
-
- /* Now we know which file to use.
- Set up its pointer and transfer the data. */
- if (xferfile)
- {
- if (*xferfile == 0)
- if (xferfile == &execfile)
- error ("No program file to examine.");
- else
- error ("No core dump file or running program to examine.");
- val = lseek (xferchan, fileptr, 0);
- if (val < 0)
- perror_with_name (*xferfile);
- val = myread (xferchan, myaddr, i);
- if (val < 0)
- perror_with_name (*xferfile);
- }
- /* If this address is for nonexistent memory,
- read zeros if reading, or do nothing if writing.
- Actually, we never right. */
- else
- {
- memset (myaddr, '\0', i);
- returnval = EIO;
- }
-
- memaddr += i;
- myaddr += i;
- len -= i;
- }
- return returnval;
-}
-#endif
+/* OBSOLETE /* Acorn Risc Machine host machine support. */
+/* OBSOLETE Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc. */
+/* OBSOLETE */
+/* OBSOLETE This file is part of GDB. */
+/* OBSOLETE */
+/* OBSOLETE This program is free software; you can redistribute it and/or modify */
+/* OBSOLETE it under the terms of the GNU General Public License as published by */
+/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
+/* OBSOLETE (at your option) any later version. */
+/* OBSOLETE */
+/* OBSOLETE This program is distributed in the hope that it will be useful, */
+/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
+/* OBSOLETE GNU General Public License for more details. */
+/* OBSOLETE */
+/* OBSOLETE You should have received a copy of the GNU General Public License */
+/* OBSOLETE along with this program; if not, write to the Free Software */
+/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
+/* OBSOLETE Boston, MA 02111-1307, USA. *x/ */
+/* OBSOLETE */
+/* OBSOLETE #include "defs.h" */
+/* OBSOLETE #include "frame.h" */
+/* OBSOLETE #include "inferior.h" */
+/* OBSOLETE #include "opcode/arm.h" */
+/* OBSOLETE */
+/* OBSOLETE #include <sys/param.h> */
+/* OBSOLETE #include <sys/dir.h> */
+/* OBSOLETE #include <signal.h> */
+/* OBSOLETE #include <sys/ioctl.h> */
+/* OBSOLETE #include <sys/ptrace.h> */
+/* OBSOLETE #include <machine/reg.h> */
+/* OBSOLETE */
+/* OBSOLETE #define N_TXTADDR(hdr) 0x8000 */
+/* OBSOLETE #define N_DATADDR(hdr) (hdr.a_text + 0x8000) */
+/* OBSOLETE */
+/* OBSOLETE #include "gdbcore.h" */
+/* OBSOLETE */
+/* OBSOLETE #include <sys/user.h> /* After a.out.h *x/ */
+/* OBSOLETE #include <sys/file.h> */
+/* OBSOLETE #include "gdb_stat.h" */
+/* OBSOLETE */
+/* OBSOLETE #include <errno.h> */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE fetch_inferior_registers (regno) */
+/* OBSOLETE int regno; /* Original value discarded *x/ */
+/* OBSOLETE { */
+/* OBSOLETE register unsigned int regaddr; */
+/* OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; */
+/* OBSOLETE register int i; */
+/* OBSOLETE */
+/* OBSOLETE struct user u; */
+/* OBSOLETE unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */
+/* OBSOLETE offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */
+/* OBSOLETE - KERNEL_U_ADDR; */
+/* OBSOLETE */
+/* OBSOLETE registers_fetched (); */
+/* OBSOLETE */
+/* OBSOLETE for (regno = 0; regno < 16; regno++) */
+/* OBSOLETE { */
+/* OBSOLETE regaddr = offset + regno * 4; */
+/* OBSOLETE *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */
+/* OBSOLETE (PTRACE_ARG3_TYPE) regaddr, 0); */
+/* OBSOLETE if (regno == PC_REGNUM) */
+/* OBSOLETE *(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]); */
+/* OBSOLETE supply_register (regno, buf); */
+/* OBSOLETE } */
+/* OBSOLETE *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */
+/* OBSOLETE (PTRACE_ARG3_TYPE) (offset + PC * 4), 0); */
+/* OBSOLETE supply_register (PS_REGNUM, buf); /* set virtual register ps same as pc *x/ */
+/* OBSOLETE */
+/* OBSOLETE /* read the floating point registers *x/ */
+/* OBSOLETE offset = (char *) &u.u_fp_regs - (char *) &u; */
+/* OBSOLETE *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0); */
+/* OBSOLETE supply_register (FPS_REGNUM, buf); */
+/* OBSOLETE for (regno = 16; regno < 24; regno++) */
+/* OBSOLETE { */
+/* OBSOLETE regaddr = offset + 4 + 12 * (regno - 16); */
+/* OBSOLETE for (i = 0; i < 12; i += sizeof (int)) */
+/* OBSOLETE *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid, */
+/* OBSOLETE (PTRACE_ARG3_TYPE) (regaddr + i), 0); */
+/* OBSOLETE supply_register (regno, buf); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Store our register values back into the inferior. */
+/* OBSOLETE If REGNO is -1, do this for all registers. */
+/* OBSOLETE Otherwise, REGNO specifies which register (so we can save time). *x/ */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE store_inferior_registers (regno) */
+/* OBSOLETE int regno; */
+/* OBSOLETE { */
+/* OBSOLETE register unsigned int regaddr; */
+/* OBSOLETE char buf[80]; */
+/* OBSOLETE */
+/* OBSOLETE struct user u; */
+/* OBSOLETE unsigned long value; */
+/* OBSOLETE unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */
+/* OBSOLETE offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */
+/* OBSOLETE - KERNEL_U_ADDR; */
+/* OBSOLETE */
+/* OBSOLETE if (regno >= 0) */
+/* OBSOLETE { */
+/* OBSOLETE if (regno >= 16) */
+/* OBSOLETE return; */
+/* OBSOLETE regaddr = offset + 4 * regno; */
+/* OBSOLETE errno = 0; */
+/* OBSOLETE value = read_register (regno); */
+/* OBSOLETE if (regno == PC_REGNUM) */
+/* OBSOLETE value = SET_PC_PART (read_register (PS_REGNUM), value); */
+/* OBSOLETE ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */
+/* OBSOLETE if (errno != 0) */
+/* OBSOLETE { */
+/* OBSOLETE sprintf (buf, "writing register number %d", regno); */
+/* OBSOLETE perror_with_name (buf); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE for (regno = 0; regno < 15; regno++) */
+/* OBSOLETE { */
+/* OBSOLETE regaddr = offset + regno * 4; */
+/* OBSOLETE errno = 0; */
+/* OBSOLETE value = read_register (regno); */
+/* OBSOLETE if (regno == PC_REGNUM) */
+/* OBSOLETE value = SET_PC_PART (read_register (PS_REGNUM), value); */
+/* OBSOLETE ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */
+/* OBSOLETE if (errno != 0) */
+/* OBSOLETE { */
+/* OBSOLETE sprintf (buf, "writing all regs, number %d", regno); */
+/* OBSOLETE perror_with_name (buf); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE \f */
+/* OBSOLETE /* Work with core dump and executable files, for GDB. */
+/* OBSOLETE This code would be in corefile.c if it weren't machine-dependent. *x/ */
+/* OBSOLETE */
+/* OBSOLETE /* Structure to describe the chain of shared libraries used */
+/* OBSOLETE by the execfile. */
+/* OBSOLETE e.g. prog shares Xt which shares X11 which shares c. *x/ */
+/* OBSOLETE */
+/* OBSOLETE struct shared_library */
+/* OBSOLETE { */
+/* OBSOLETE struct exec_header header; */
+/* OBSOLETE char name[SHLIBLEN]; */
+/* OBSOLETE CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file *x/ */
+/* OBSOLETE long data_offset; /* offset of data section in file *x/ */
+/* OBSOLETE int chan; /* file descriptor for the file *x/ */
+/* OBSOLETE struct shared_library *shares; /* library this one shares *x/ */
+/* OBSOLETE }; */
+/* OBSOLETE static struct shared_library *shlib = 0; */
+/* OBSOLETE */
+/* OBSOLETE /* Hook for `exec_file_command' command to call. *x/ */
+/* OBSOLETE */
+/* OBSOLETE extern void (*exec_file_display_hook) (); */
+/* OBSOLETE */
+/* OBSOLETE static CORE_ADDR unshared_text_start; */
+/* OBSOLETE */
+/* OBSOLETE /* extended header from exec file (for shared library info) *x/ */
+/* OBSOLETE */
+/* OBSOLETE static struct exec_header exec_header; */
+/* OBSOLETE \f */
+/* OBSOLETE void */
+/* OBSOLETE core_file_command (filename, from_tty) */
+/* OBSOLETE char *filename; */
+/* OBSOLETE int from_tty; */
+/* OBSOLETE { */
+/* OBSOLETE int val; */
+/* OBSOLETE */
+/* OBSOLETE /* Discard all vestiges of any previous core file */
+/* OBSOLETE and mark data and stack spaces as empty. *x/ */
+/* OBSOLETE */
+/* OBSOLETE if (corefile) */
+/* OBSOLETE xfree (corefile); */
+/* OBSOLETE corefile = 0; */
+/* OBSOLETE */
+/* OBSOLETE if (corechan >= 0) */
+/* OBSOLETE close (corechan); */
+/* OBSOLETE corechan = -1; */
+/* OBSOLETE */
+/* OBSOLETE data_start = 0; */
+/* OBSOLETE data_end = 0; */
+/* OBSOLETE stack_start = STACK_END_ADDR; */
+/* OBSOLETE stack_end = STACK_END_ADDR; */
+/* OBSOLETE */
+/* OBSOLETE /* Now, if a new core file was specified, open it and digest it. *x/ */
+/* OBSOLETE */
+/* OBSOLETE if (filename) */
+/* OBSOLETE { */
+/* OBSOLETE filename = tilde_expand (filename); */
+/* OBSOLETE make_cleanup (xfree, filename); */
+/* OBSOLETE */
+/* OBSOLETE if (have_inferior_p ()) */
+/* OBSOLETE error ("To look at a core file, you must kill the program with \"kill\"."); */
+/* OBSOLETE corechan = open (filename, O_RDONLY, 0); */
+/* OBSOLETE if (corechan < 0) */
+/* OBSOLETE perror_with_name (filename); */
+/* OBSOLETE /* 4.2-style (and perhaps also sysV-style) core dump file. *x/ */
+/* OBSOLETE { */
+/* OBSOLETE struct user u; */
+/* OBSOLETE */
+/* OBSOLETE unsigned int reg_offset, fp_reg_offset; */
+/* OBSOLETE */
+/* OBSOLETE val = myread (corechan, &u, sizeof u); */
+/* OBSOLETE if (val < 0) */
+/* OBSOLETE perror_with_name ("Not a core file: reading upage"); */
+/* OBSOLETE if (val != sizeof u) */
+/* OBSOLETE error ("Not a core file: could only read %d bytes", val); */
+/* OBSOLETE */
+/* OBSOLETE /* We are depending on exec_file_command having been called */
+/* OBSOLETE previously to set exec_data_start. Since the executable */
+/* OBSOLETE and the core file share the same text segment, the address */
+/* OBSOLETE of the data segment will be the same in both. *x/ */
+/* OBSOLETE data_start = exec_data_start; */
+/* OBSOLETE */
+/* OBSOLETE data_end = data_start + NBPG * u.u_dsize; */
+/* OBSOLETE stack_start = stack_end - NBPG * u.u_ssize; */
+/* OBSOLETE data_offset = NBPG * UPAGES; */
+/* OBSOLETE stack_offset = NBPG * (UPAGES + u.u_dsize); */
+/* OBSOLETE */
+/* OBSOLETE /* Some machines put an absolute address in here and some put */
+/* OBSOLETE the offset in the upage of the regs. *x/ */
+/* OBSOLETE reg_offset = (int) u.u_ar0; */
+/* OBSOLETE if (reg_offset > NBPG * UPAGES) */
+/* OBSOLETE reg_offset -= KERNEL_U_ADDR; */
+/* OBSOLETE fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u; */
+/* OBSOLETE */
+/* OBSOLETE /* I don't know where to find this info. */
+/* OBSOLETE So, for now, mark it as not available. *x/ */
+/* OBSOLETE N_SET_MAGIC (core_aouthdr, 0); */
+/* OBSOLETE */
+/* OBSOLETE /* Read the register values out of the core file and store */
+/* OBSOLETE them where `read_register' will find them. *x/ */
+/* OBSOLETE */
+/* OBSOLETE { */
+/* OBSOLETE register int regno; */
+/* OBSOLETE */
+/* OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) */
+/* OBSOLETE { */
+/* OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; */
+/* OBSOLETE */
+/* OBSOLETE if (regno < 16) */
+/* OBSOLETE val = lseek (corechan, reg_offset + 4 * regno, 0); */
+/* OBSOLETE else if (regno < 24) */
+/* OBSOLETE val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0); */
+/* OBSOLETE else if (regno == 24) */
+/* OBSOLETE val = lseek (corechan, fp_reg_offset, 0); */
+/* OBSOLETE else if (regno == 25) */
+/* OBSOLETE val = lseek (corechan, reg_offset + 4 * PC, 0); */
+/* OBSOLETE if (val < 0 */
+/* OBSOLETE || (val = myread (corechan, buf, sizeof buf)) < 0) */
+/* OBSOLETE { */
+/* OBSOLETE char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) */
+/* OBSOLETE + 30); */
+/* OBSOLETE strcpy (buffer, "Reading register "); */
+/* OBSOLETE strcat (buffer, REGISTER_NAME (regno)); */
+/* OBSOLETE */
+/* OBSOLETE perror_with_name (buffer); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE if (regno == PC_REGNUM) */
+/* OBSOLETE *(int *) buf = GET_PC_PART (*(int *) buf); */
+/* OBSOLETE supply_register (regno, buf); */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE if (filename[0] == '/') */
+/* OBSOLETE corefile = savestring (filename, strlen (filename)); */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE corefile = concat (current_directory, "/", filename, NULL); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE flush_cached_frames (); */
+/* OBSOLETE select_frame (get_current_frame (), 0); */
+/* OBSOLETE validate_files (); */
+/* OBSOLETE } */
+/* OBSOLETE else if (from_tty) */
+/* OBSOLETE printf ("No core file now.\n"); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE #if 0 */
+/* OBSOLETE /* Work with core dump and executable files, for GDB. */
+/* OBSOLETE This code would be in corefile.c if it weren't machine-dependent. *x/ */
+/* OBSOLETE */
+/* OBSOLETE /* Structure to describe the chain of shared libraries used */
+/* OBSOLETE by the execfile. */
+/* OBSOLETE e.g. prog shares Xt which shares X11 which shares c. *x/ */
+/* OBSOLETE */
+/* OBSOLETE struct shared_library */
+/* OBSOLETE { */
+/* OBSOLETE struct exec_header header; */
+/* OBSOLETE char name[SHLIBLEN]; */
+/* OBSOLETE CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file *x/ */
+/* OBSOLETE long data_offset; /* offset of data section in file *x/ */
+/* OBSOLETE int chan; /* file descriptor for the file *x/ */
+/* OBSOLETE struct shared_library *shares; /* library this one shares *x/ */
+/* OBSOLETE }; */
+/* OBSOLETE static struct shared_library *shlib = 0; */
+/* OBSOLETE */
+/* OBSOLETE /* Hook for `exec_file_command' command to call. *x/ */
+/* OBSOLETE */
+/* OBSOLETE extern void (*exec_file_display_hook) (); */
+/* OBSOLETE */
+/* OBSOLETE static CORE_ADDR unshared_text_start; */
+/* OBSOLETE */
+/* OBSOLETE /* extended header from exec file (for shared library info) *x/ */
+/* OBSOLETE */
+/* OBSOLETE static struct exec_header exec_header; */
+/* OBSOLETE */
+/* OBSOLETE void */
+/* OBSOLETE exec_file_command (filename, from_tty) */
+/* OBSOLETE char *filename; */
+/* OBSOLETE int from_tty; */
+/* OBSOLETE { */
+/* OBSOLETE int val; */
+/* OBSOLETE */
+/* OBSOLETE /* Eliminate all traces of old exec file. */
+/* OBSOLETE Mark text segment as empty. *x/ */
+/* OBSOLETE */
+/* OBSOLETE if (execfile) */
+/* OBSOLETE xfree (execfile); */
+/* OBSOLETE execfile = 0; */
+/* OBSOLETE data_start = 0; */
+/* OBSOLETE data_end -= exec_data_start; */
+/* OBSOLETE text_start = 0; */
+/* OBSOLETE unshared_text_start = 0; */
+/* OBSOLETE text_end = 0; */
+/* OBSOLETE exec_data_start = 0; */
+/* OBSOLETE exec_data_end = 0; */
+/* OBSOLETE if (execchan >= 0) */
+/* OBSOLETE close (execchan); */
+/* OBSOLETE execchan = -1; */
+/* OBSOLETE if (shlib) */
+/* OBSOLETE { */
+/* OBSOLETE close_shared_library (shlib); */
+/* OBSOLETE shlib = 0; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Now open and digest the file the user requested, if any. *x/ */
+/* OBSOLETE */
+/* OBSOLETE if (filename) */
+/* OBSOLETE { */
+/* OBSOLETE filename = tilde_expand (filename); */
+/* OBSOLETE make_cleanup (xfree, filename); */
+/* OBSOLETE */
+/* OBSOLETE execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0, */
+/* OBSOLETE &execfile); */
+/* OBSOLETE if (execchan < 0) */
+/* OBSOLETE perror_with_name (filename); */
+/* OBSOLETE */
+/* OBSOLETE { */
+/* OBSOLETE struct stat st_exec; */
+/* OBSOLETE */
+/* OBSOLETE #ifdef HEADER_SEEK_FD */
+/* OBSOLETE HEADER_SEEK_FD (execchan); */
+/* OBSOLETE #endif */
+/* OBSOLETE */
+/* OBSOLETE val = myread (execchan, &exec_header, sizeof exec_header); */
+/* OBSOLETE exec_aouthdr = exec_header.a_exec; */
+/* OBSOLETE */
+/* OBSOLETE if (val < 0) */
+/* OBSOLETE perror_with_name (filename); */
+/* OBSOLETE */
+/* OBSOLETE text_start = 0x8000; */
+/* OBSOLETE */
+/* OBSOLETE /* Look for shared library if needed *x/ */
+/* OBSOLETE if (exec_header.a_exec.a_magic & MF_USES_SL) */
+/* OBSOLETE shlib = open_shared_library (exec_header.a_shlibname, text_start); */
+/* OBSOLETE */
+/* OBSOLETE text_offset = N_TXTOFF (exec_aouthdr); */
+/* OBSOLETE exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text; */
+/* OBSOLETE */
+/* OBSOLETE if (shlib) */
+/* OBSOLETE { */
+/* OBSOLETE unshared_text_start = shared_text_end (shlib) & ~0x7fff; */
+/* OBSOLETE stack_start = shlib->header.a_exec.a_sldatabase; */
+/* OBSOLETE stack_end = STACK_END_ADDR; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE unshared_text_start = 0x8000; */
+/* OBSOLETE text_end = unshared_text_start + exec_aouthdr.a_text; */
+/* OBSOLETE */
+/* OBSOLETE exec_data_start = unshared_text_start + exec_aouthdr.a_text; */
+/* OBSOLETE exec_data_end = exec_data_start + exec_aouthdr.a_data; */
+/* OBSOLETE */
+/* OBSOLETE data_start = exec_data_start; */
+/* OBSOLETE data_end += exec_data_start; */
+/* OBSOLETE */
+/* OBSOLETE fstat (execchan, &st_exec); */
+/* OBSOLETE exec_mtime = st_exec.st_mtime; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE validate_files (); */
+/* OBSOLETE } */
+/* OBSOLETE else if (from_tty) */
+/* OBSOLETE printf ("No executable file now.\n"); */
+/* OBSOLETE */
+/* OBSOLETE /* Tell display code (if any) about the changed file name. *x/ */
+/* OBSOLETE if (exec_file_display_hook) */
+/* OBSOLETE (*exec_file_display_hook) (filename); */
+/* OBSOLETE } */
+/* OBSOLETE #endif */
+/* OBSOLETE */
+/* OBSOLETE #if 0 */
+/* OBSOLETE /* Read from the program's memory (except for inferior processes). */
+/* OBSOLETE This function is misnamed, since it only reads, never writes; and */
+/* OBSOLETE since it will use the core file and/or executable file as necessary. */
+/* OBSOLETE */
+/* OBSOLETE It should be extended to write as well as read, FIXME, for patching files. */
+/* OBSOLETE */
+/* OBSOLETE Return 0 if address could be read, EIO if addresss out of bounds. *x/ */
+/* OBSOLETE */
+/* OBSOLETE int */
+/* OBSOLETE xfer_core_file (memaddr, myaddr, len) */
+/* OBSOLETE CORE_ADDR memaddr; */
+/* OBSOLETE char *myaddr; */
+/* OBSOLETE int len; */
+/* OBSOLETE { */
+/* OBSOLETE register int i; */
+/* OBSOLETE register int val; */
+/* OBSOLETE int xferchan; */
+/* OBSOLETE char **xferfile; */
+/* OBSOLETE int fileptr; */
+/* OBSOLETE int returnval = 0; */
+/* OBSOLETE */
+/* OBSOLETE while (len > 0) */
+/* OBSOLETE { */
+/* OBSOLETE xferfile = 0; */
+/* OBSOLETE xferchan = 0; */
+/* OBSOLETE */
+/* OBSOLETE /* Determine which file the next bunch of addresses reside in, */
+/* OBSOLETE and where in the file. Set the file's read/write pointer */
+/* OBSOLETE to point at the proper place for the desired address */
+/* OBSOLETE and set xferfile and xferchan for the correct file. */
+/* OBSOLETE */
+/* OBSOLETE If desired address is nonexistent, leave them zero. */
+/* OBSOLETE */
+/* OBSOLETE i is set to the number of bytes that can be handled */
+/* OBSOLETE along with the next address. */
+/* OBSOLETE */
+/* OBSOLETE We put the most likely tests first for efficiency. *x/ */
+/* OBSOLETE */
+/* OBSOLETE /* Note that if there is no core file */
+/* OBSOLETE data_start and data_end are equal. *x/ */
+/* OBSOLETE if (memaddr >= data_start && memaddr < data_end) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, data_end - memaddr); */
+/* OBSOLETE fileptr = memaddr - data_start + data_offset; */
+/* OBSOLETE xferfile = &corefile; */
+/* OBSOLETE xferchan = corechan; */
+/* OBSOLETE } */
+/* OBSOLETE /* Note that if there is no core file */
+/* OBSOLETE stack_start and stack_end define the shared library data. *x/ */
+/* OBSOLETE else if (memaddr >= stack_start && memaddr < stack_end) */
+/* OBSOLETE { */
+/* OBSOLETE if (corechan < 0) */
+/* OBSOLETE { */
+/* OBSOLETE struct shared_library *lib; */
+/* OBSOLETE for (lib = shlib; lib; lib = lib->shares) */
+/* OBSOLETE if (memaddr >= lib->header.a_exec.a_sldatabase && */
+/* OBSOLETE memaddr < lib->header.a_exec.a_sldatabase + */
+/* OBSOLETE lib->header.a_exec.a_data) */
+/* OBSOLETE break; */
+/* OBSOLETE if (lib) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, lib->header.a_exec.a_sldatabase + */
+/* OBSOLETE lib->header.a_exec.a_data - memaddr); */
+/* OBSOLETE fileptr = lib->data_offset + memaddr - */
+/* OBSOLETE lib->header.a_exec.a_sldatabase; */
+/* OBSOLETE xferfile = execfile; */
+/* OBSOLETE xferchan = lib->chan; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, stack_end - memaddr); */
+/* OBSOLETE fileptr = memaddr - stack_start + stack_offset; */
+/* OBSOLETE xferfile = &corefile; */
+/* OBSOLETE xferchan = corechan; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else if (corechan < 0 */
+/* OBSOLETE && memaddr >= exec_data_start && memaddr < exec_data_end) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, exec_data_end - memaddr); */
+/* OBSOLETE fileptr = memaddr - exec_data_start + exec_data_offset; */
+/* OBSOLETE xferfile = &execfile; */
+/* OBSOLETE xferchan = execchan; */
+/* OBSOLETE } */
+/* OBSOLETE else if (memaddr >= text_start && memaddr < text_end) */
+/* OBSOLETE { */
+/* OBSOLETE struct shared_library *lib; */
+/* OBSOLETE for (lib = shlib; lib; lib = lib->shares) */
+/* OBSOLETE if (memaddr >= lib->text_start && */
+/* OBSOLETE memaddr < lib->text_start + lib->header.a_exec.a_text) */
+/* OBSOLETE break; */
+/* OBSOLETE if (lib) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, lib->header.a_exec.a_text + */
+/* OBSOLETE lib->text_start - memaddr); */
+/* OBSOLETE fileptr = memaddr - lib->text_start + text_offset; */
+/* OBSOLETE xferfile = &execfile; */
+/* OBSOLETE xferchan = lib->chan; */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, text_end - memaddr); */
+/* OBSOLETE fileptr = memaddr - unshared_text_start + text_offset; */
+/* OBSOLETE xferfile = &execfile; */
+/* OBSOLETE xferchan = execchan; */
+/* OBSOLETE } */
+/* OBSOLETE } */
+/* OBSOLETE else if (memaddr < text_start) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, text_start - memaddr); */
+/* OBSOLETE } */
+/* OBSOLETE else if (memaddr >= text_end */
+/* OBSOLETE && memaddr < (corechan >= 0 ? data_start : exec_data_start)) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, data_start - memaddr); */
+/* OBSOLETE } */
+/* OBSOLETE else if (corechan >= 0 */
+/* OBSOLETE && memaddr >= data_end && memaddr < stack_start) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, stack_start - memaddr); */
+/* OBSOLETE } */
+/* OBSOLETE else if (corechan < 0 && memaddr >= exec_data_end) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, -memaddr); */
+/* OBSOLETE } */
+/* OBSOLETE else if (memaddr >= stack_end && stack_end != 0) */
+/* OBSOLETE { */
+/* OBSOLETE i = min (len, -memaddr); */
+/* OBSOLETE } */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE /* Address did not classify into one of the known ranges. */
+/* OBSOLETE This shouldn't happen; we catch the endpoints. *x/ */
+/* OBSOLETE internal_error ("Bad case logic in xfer_core_file."); */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE /* Now we know which file to use. */
+/* OBSOLETE Set up its pointer and transfer the data. *x/ */
+/* OBSOLETE if (xferfile) */
+/* OBSOLETE { */
+/* OBSOLETE if (*xferfile == 0) */
+/* OBSOLETE if (xferfile == &execfile) */
+/* OBSOLETE error ("No program file to examine."); */
+/* OBSOLETE else */
+/* OBSOLETE error ("No core dump file or running program to examine."); */
+/* OBSOLETE val = lseek (xferchan, fileptr, 0); */
+/* OBSOLETE if (val < 0) */
+/* OBSOLETE perror_with_name (*xferfile); */
+/* OBSOLETE val = myread (xferchan, myaddr, i); */
+/* OBSOLETE if (val < 0) */
+/* OBSOLETE perror_with_name (*xferfile); */
+/* OBSOLETE } */
+/* OBSOLETE /* If this address is for nonexistent memory, */
+/* OBSOLETE read zeros if reading, or do nothing if writing. */
+/* OBSOLETE Actually, we never right. *x/ */
+/* OBSOLETE else */
+/* OBSOLETE { */
+/* OBSOLETE memset (myaddr, '\0', i); */
+/* OBSOLETE returnval = EIO; */
+/* OBSOLETE } */
+/* OBSOLETE */
+/* OBSOLETE memaddr += i; */
+/* OBSOLETE myaddr += i; */
+/* OBSOLETE len -= i; */
+/* OBSOLETE } */
+/* OBSOLETE return returnval; */
+/* OBSOLETE } */
+/* OBSOLETE #endif */
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