| /* 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 */ |
| /* 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 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 */ |