diff options
Diffstat (limited to 'gdb/corefile.c')
| -rw-r--r-- | gdb/corefile.c | 479 |
1 files changed, 0 insertions, 479 deletions
diff --git a/gdb/corefile.c b/gdb/corefile.c deleted file mode 100644 index 94e56eb..0000000 --- a/gdb/corefile.c +++ /dev/null @@ -1,479 +0,0 @@ -/* Core dump and executable file functions above target vector, for GDB. - Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994 - 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 "gdb_string.h" -#include <errno.h> -#include <signal.h> -#include <fcntl.h> -#include "frame.h" /* required by inferior.h */ -#include "inferior.h" -#include "symtab.h" -#include "command.h" -#include "gdbcmd.h" -#include "bfd.h" -#include "target.h" -#include "gdbcore.h" -#include "dis-asm.h" -#include "language.h" -#include "gdb_stat.h" -#include "symfile.h" -#include "objfiles.h" - -extern char registers[]; - -/* Local function declarations. */ - -static void call_extra_exec_file_hooks PARAMS ((char *filename)); - -/* You can have any number of hooks for `exec_file_command' command to call. - If there's only one hook, it is set in exec_file_display hook. - If there are two or more hooks, they are set in exec_file_extra_hooks[], - and exec_file_display_hook is set to a function that calls all of them. - This extra complexity is needed to preserve compatibility with - old code that assumed that only one hook could be set, and which called - exec_file_display_hook directly. */ - -typedef void (*hook_type) PARAMS ((char *)); - -hook_type exec_file_display_hook; /* the original hook */ -static hook_type *exec_file_extra_hooks; /* array of additional hooks */ -static int exec_file_hook_count = 0; /* size of array */ - -/* Binary file diddling handle for the core file. */ - -bfd *core_bfd = NULL; - - -/* Backward compatability with old way of specifying core files. */ - -void -core_file_command (filename, from_tty) - char *filename; - int from_tty; -{ - struct target_ops *t; - - dont_repeat (); /* Either way, seems bogus. */ - - t = find_core_target (); - if (t != NULL) - if (!filename) - (t->to_detach) (filename, from_tty); - else - { - /* Yes, we were given the path of a core file. Do we already - have a symbol file? If not, can we determine it from the - core file? If we can, do so. - */ -#ifdef HPUXHPPA - if (symfile_objfile == NULL) - { - char * symfile; - symfile = t->to_core_file_to_sym_file (filename); - if (symfile) - { - char * symfile_copy = strdup (symfile); - - make_cleanup (free, symfile_copy); - symbol_file_command (symfile_copy, from_tty); - } - else - warning ("Unknown symbols for '%s'; use the 'symbol-file' command.", filename); - } -#endif - (t->to_open) (filename, from_tty); - } - else - error ("GDB can't read core files on this machine."); -} - - -/* If there are two or more functions that wish to hook into exec_file_command, - * this function will call all of the hook functions. */ - -static void -call_extra_exec_file_hooks (filename) - char *filename; -{ - int i; - - for (i = 0; i < exec_file_hook_count; i++) - (*exec_file_extra_hooks[i])(filename); -} - -/* Call this to specify the hook for exec_file_command to call back. - This is called from the x-window display code. */ - -void -specify_exec_file_hook (hook) - void (*hook) PARAMS ((char *)); -{ - hook_type *new_array; - - if (exec_file_display_hook != NULL) - { - /* There's already a hook installed. Arrange to have both it - * and the subsequent hooks called. */ - if (exec_file_hook_count == 0) - { - /* If this is the first extra hook, initialize the hook array. */ - exec_file_extra_hooks = (hook_type *) xmalloc (sizeof(hook_type)); - exec_file_extra_hooks[0] = exec_file_display_hook; - exec_file_display_hook = call_extra_exec_file_hooks; - exec_file_hook_count = 1; - } - - /* Grow the hook array by one and add the new hook to the end. - Yes, it's inefficient to grow it by one each time but since - this is hardly ever called it's not a big deal. */ - exec_file_hook_count++; - new_array = - (hook_type *) xrealloc (exec_file_extra_hooks, - exec_file_hook_count * sizeof(hook_type)); - exec_file_extra_hooks = new_array; - exec_file_extra_hooks[exec_file_hook_count - 1] = hook; - } - else - exec_file_display_hook = hook; -} - -/* The exec file must be closed before running an inferior. - If it is needed again after the inferior dies, it must - be reopened. */ - -void -close_exec_file () -{ -#if 0 /* FIXME */ - if (exec_bfd) - bfd_tempclose (exec_bfd); -#endif -} - -void -reopen_exec_file () -{ -#if 0 /* FIXME */ - if (exec_bfd) - bfd_reopen (exec_bfd); -#else - char *filename; - int res; - struct stat st; - long mtime; - - /* Don't do anything if the current target isn't exec. */ - if (exec_bfd == NULL || strcmp (target_shortname, "exec") != 0) - return; - - /* If the timestamp of the exec file has changed, reopen it. */ - filename = strdup (bfd_get_filename (exec_bfd)); - make_cleanup (free, filename); - mtime = bfd_get_mtime(exec_bfd); - res = stat (filename, &st); - - if (mtime && mtime != st.st_mtime) - exec_file_command (filename, 0); -#endif -} - -/* If we have both a core file and an exec file, - print a warning if they don't go together. */ - -void -validate_files () -{ - if (exec_bfd && core_bfd) - { - if (!core_file_matches_executable_p (core_bfd, exec_bfd)) - warning ("core file may not match specified executable file."); - else if (bfd_get_mtime(exec_bfd) > bfd_get_mtime(core_bfd)) - warning ("exec file is newer than core file."); - } -} - -/* Return the name of the executable file as a string. - ERR nonzero means get error if there is none specified; - otherwise return 0 in that case. */ - -char * -get_exec_file (err) - int err; -{ - if (exec_bfd) return bfd_get_filename(exec_bfd); - if (!err) return NULL; - - error ("No executable file specified.\n\ -Use the \"file\" or \"exec-file\" command."); - return NULL; -} - - -/* Report a memory error with error(). */ - -void -memory_error (status, memaddr) - int status; - CORE_ADDR memaddr; -{ - if (status == EIO) - { - /* Actually, address between memaddr and memaddr + len - was out of bounds. */ - error_begin (); - printf_filtered ("Cannot access memory at address "); - print_address_numeric (memaddr, 1, gdb_stdout); - printf_filtered (".\n"); - return_to_top_level (RETURN_ERROR); - } - else - { - error_begin (); - printf_filtered ("Error accessing memory address "); - print_address_numeric (memaddr, 1, gdb_stdout); - printf_filtered (": %s.\n", - safe_strerror (status)); - return_to_top_level (RETURN_ERROR); - } -} - -/* Same as target_read_memory, but report an error if can't read. */ -void -read_memory (memaddr, myaddr, len) - CORE_ADDR memaddr; - char *myaddr; - int len; -{ - int status; - status = target_read_memory (memaddr, myaddr, len); - if (status != 0) - memory_error (status, memaddr); -} - -void -read_memory_section (memaddr, myaddr, len, bfd_section) - CORE_ADDR memaddr; - char *myaddr; - int len; - asection *bfd_section; -{ - int status; - status = target_read_memory_section (memaddr, myaddr, len, bfd_section); - if (status != 0) - memory_error (status, memaddr); -} - -/* Like target_read_memory, but slightly different parameters. */ - -int -dis_asm_read_memory (memaddr, myaddr, len, info) - bfd_vma memaddr; - bfd_byte *myaddr; - int len; - disassemble_info *info; -{ - return target_read_memory (memaddr, (char *) myaddr, len); -} - -/* Like memory_error with slightly different parameters. */ -void -dis_asm_memory_error (status, memaddr, info) - int status; - bfd_vma memaddr; - disassemble_info *info; -{ - memory_error (status, memaddr); -} - -/* Like print_address with slightly different parameters. */ -void -dis_asm_print_address (addr, info) - bfd_vma addr; - struct disassemble_info *info; -{ - print_address (addr, info->stream); -} - -/* Same as target_write_memory, but report an error if can't write. */ -void -write_memory (memaddr, myaddr, len) - CORE_ADDR memaddr; - char *myaddr; - int len; -{ - int status; - - status = target_write_memory (memaddr, myaddr, len); - if (status != 0) - memory_error (status, memaddr); -} - -/* Read an integer from debugged memory, given address and number of bytes. */ - -LONGEST -read_memory_integer (memaddr, len) - CORE_ADDR memaddr; - int len; -{ - char buf[sizeof (LONGEST)]; - - read_memory (memaddr, buf, len); - return extract_signed_integer (buf, len); -} - -ULONGEST -read_memory_unsigned_integer (memaddr, len) - CORE_ADDR memaddr; - int len; -{ - char buf[sizeof (ULONGEST)]; - - read_memory (memaddr, buf, len); - return extract_unsigned_integer (buf, len); -} - -void -read_memory_string (memaddr, buffer, max_len) - CORE_ADDR memaddr; - char * buffer; - int max_len; -{ - register char * cp; - register int i; - int cnt; - - cp = buffer; - while (1) - { - if (cp - buffer >= max_len) - { - buffer[max_len - 1] = '\0'; - break; - } - cnt = max_len - (cp - buffer); - if (cnt > 8) - cnt = 8; - read_memory (memaddr + (int) (cp - buffer), cp, cnt); - for (i = 0; i < cnt && *cp; i++, cp++) - ; /* null body */ - - if (i < cnt && !*cp) - break; - } -} - - -#if 0 -/* Enable after 4.12. It is not tested. */ - -/* Search code. Targets can just make this their search function, or - if the protocol has a less general search function, they can call this - in the cases it can't handle. */ -void -generic_search (len, data, mask, startaddr, increment, lorange, hirange - addr_found, data_found) - int len; - char *data; - char *mask; - CORE_ADDR startaddr; - int increment; - CORE_ADDR lorange; - CORE_ADDR hirange; - CORE_ADDR *addr_found; - char *data_found; -{ - int i; - CORE_ADDR curaddr = startaddr; - - while (curaddr >= lorange && curaddr < hirange) - { - read_memory (curaddr, data_found, len); - for (i = 0; i < len; ++i) - if ((data_found[i] & mask[i]) != data[i]) - goto try_again; - /* It matches. */ - *addr_found = curaddr; - return; - - try_again: - curaddr += increment; - } - *addr_found = (CORE_ADDR)0; - return; -} -#endif /* 0 */ - -/* The current default bfd target. Points to storage allocated for - gnutarget_string. */ -char *gnutarget; - -/* Same thing, except it is "auto" not NULL for the default case. */ -static char *gnutarget_string; - -static void set_gnutarget_command - PARAMS ((char *, int, struct cmd_list_element *)); - -static void -set_gnutarget_command (ignore, from_tty, c) - char *ignore; - int from_tty; - struct cmd_list_element *c; -{ - if (STREQ (gnutarget_string, "auto")) - gnutarget = NULL; - else - gnutarget = gnutarget_string; -} - -/* Set the gnutarget. */ -void -set_gnutarget (newtarget) - char *newtarget; -{ - if (gnutarget_string != NULL) - free (gnutarget_string); - gnutarget_string = savestring (newtarget, strlen (newtarget)); - set_gnutarget_command (NULL, 0, NULL); -} - -void -_initialize_core() -{ - struct cmd_list_element *c; - c = add_cmd ("core-file", class_files, core_file_command, - "Use FILE as core dump for examining memory and registers.\n\ -No arg means have no core file. This command has been superseded by the\n\ -`target core' and `detach' commands.", &cmdlist); - c->completer = filename_completer; - - c = add_set_cmd ("gnutarget", class_files, var_string_noescape, - (char *) &gnutarget_string, - "Set the current BFD target.\n\ -Use `set gnutarget auto' to specify automatic detection.", - &setlist); - c->function.sfunc = set_gnutarget_command; - add_show_from_set (c, &showlist); - - if (getenv ("GNUTARGET")) - set_gnutarget (getenv ("GNUTARGET")); - else - set_gnutarget ("auto"); -} |