X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fcorefile.c;h=6de0772584ca623463c7087ba18654b65b9eb6e1;hb=e17a4113357102b55cfa5b80557d590a46a43300;hp=ea9ce8550d2fe3d37fd252fd0e7eca6a4814c486;hpb=c2d11a7da0372ef052af1c74d56e264d8aae4743;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/corefile.c b/gdb/corefile.c
index ea9ce8550d..6de0772584 100644
--- a/gdb/corefile.c
+++ b/gdb/corefile.c
@@ -1,12 +1,14 @@
/* Core dump and executable file functions above target vector, for GDB.
- Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994
+
+ Copyright (C) 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2003, 2006, 2007, 2008, 2009
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
@@ -15,16 +17,13 @@
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. */
+ along with this program. If not, see . */
#include "defs.h"
#include "gdb_string.h"
#include
#include
#include
-#include "frame.h" /* required by inferior.h */
#include "inferior.h"
#include "symtab.h"
#include "command.h"
@@ -33,27 +32,27 @@
#include "target.h"
#include "gdbcore.h"
#include "dis-asm.h"
-#include "language.h"
#include "gdb_stat.h"
-#include "symfile.h"
-#include "objfiles.h"
+#include "completer.h"
+#include "exceptions.h"
/* Local function declarations. */
-extern void _initialize_core PARAMS ((void));
-static void call_extra_exec_file_hooks PARAMS ((char *filename));
+extern void _initialize_core (void);
+static void call_extra_exec_file_hooks (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. */
+/* 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 deprecated_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
+ deprecated_exec_file_display_hook directly. */
-typedef void (*hook_type) PARAMS ((char *));
+typedef void (*hook_type) (char *);
-hook_type exec_file_display_hook; /* the original hook */
+hook_type deprecated_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 */
@@ -65,53 +64,29 @@ 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;
+core_file_command (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 = xstrdup (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);
- }
+ if (t == NULL)
+ error (_("GDB can't read core files on this machine."));
+
+ if (!filename)
+ (t->to_detach) (t, filename, from_tty);
else
- error ("GDB can't read core files on this machine.");
+ (t->to_open) (filename, from_tty);
}
-/* If there are two or more functions that wish to hook into exec_file_command,
- * this function will call all of the hook functions. */
+/* 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;
+call_extra_exec_file_hooks (char *filename)
{
int i;
@@ -123,21 +98,20 @@ call_extra_exec_file_hooks (filename)
This is called from the x-window display code. */
void
-specify_exec_file_hook (hook)
- void (*hook) PARAMS ((char *));
+specify_exec_file_hook (void (*hook) (char *))
{
hook_type *new_array;
- if (exec_file_display_hook != NULL)
+ if (deprecated_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. */
+ /* 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_extra_hooks[0] = deprecated_exec_file_display_hook;
+ deprecated_exec_file_display_hook = call_extra_exec_file_hooks;
exec_file_hook_count = 1;
}
@@ -152,7 +126,7 @@ specify_exec_file_hook (hook)
exec_file_extra_hooks[exec_file_hook_count - 1] = hook;
}
else
- exec_file_display_hook = hook;
+ deprecated_exec_file_display_hook = hook;
}
/* The exec file must be closed before running an inferior.
@@ -160,7 +134,7 @@ specify_exec_file_hook (hook)
be reopened. */
void
-close_exec_file ()
+close_exec_file (void)
{
#if 0 /* FIXME */
if (exec_bfd)
@@ -169,7 +143,7 @@ close_exec_file ()
}
void
-reopen_exec_file ()
+reopen_exec_file (void)
{
#if 0 /* FIXME */
if (exec_bfd)
@@ -179,19 +153,26 @@ reopen_exec_file ()
int res;
struct stat st;
long mtime;
+ struct cleanup *cleanups;
- /* Don't do anything if the current target isn't exec. */
- if (exec_bfd == NULL || strcmp (target_shortname, "exec") != 0)
+ /* Don't do anything if there isn't an exec file. */
+ if (exec_bfd == NULL)
return;
/* If the timestamp of the exec file has changed, reopen it. */
filename = xstrdup (bfd_get_filename (exec_bfd));
- make_cleanup (free, filename);
- mtime = bfd_get_mtime (exec_bfd);
+ cleanups = make_cleanup (xfree, filename);
res = stat (filename, &st);
- if (mtime && mtime != st.st_mtime)
- exec_file_command (filename, 0);
+ if (exec_bfd_mtime && exec_bfd_mtime != st.st_mtime)
+ exec_file_attach (filename, 0);
+ else
+ /* If we accessed the file since last opening it, close it now;
+ this stops GDB from holding the executable open after it
+ exits. */
+ bfd_cache_close_all ();
+
+ do_cleanups (cleanups);
#endif
}
@@ -199,14 +180,14 @@ reopen_exec_file ()
print a warning if they don't go together. */
void
-validate_files ()
+validate_files (void)
{
if (exec_bfd && core_bfd)
{
if (!core_file_matches_executable_p (core_bfd, exec_bfd))
- warning ("core file may not match specified executable file.");
+ 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.");
+ warning (_("exec file is newer than core file."));
}
}
@@ -215,54 +196,40 @@ validate_files ()
otherwise return 0 in that case. */
char *
-get_exec_file (err)
- int err;
+get_exec_file (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.");
+ error (_("No executable file specified.\n\
+Use the \"file\" or \"exec-file\" command."));
return NULL;
}
-/* Report a memory error with error(). */
+/* Report a memory error by throwing a MEMORY_ERROR error. */
void
-memory_error (status, memaddr)
- int status;
- CORE_ADDR memaddr;
+memory_error (int status, CORE_ADDR memaddr)
{
- struct gdb_file *tmp_stream = mem_fileopen ();
- make_cleanup_gdb_file_delete (tmp_stream);
-
if (status == EIO)
- {
- /* Actually, address between memaddr and memaddr + len
- was out of bounds. */
- fprintf_unfiltered (tmp_stream, "Cannot access memory at address ");
- print_address_numeric (memaddr, 1, tmp_stream);
- }
+ /* Actually, address between memaddr and memaddr + len was out of
+ bounds. */
+ throw_error (MEMORY_ERROR,
+ _("Cannot access memory at address %s"),
+ paddress (target_gdbarch, memaddr));
else
- {
- fprintf_filtered (tmp_stream, "Error accessing memory address ");
- print_address_numeric (memaddr, 1, tmp_stream);
- fprintf_filtered (tmp_stream, ": %s.",
- safe_strerror (status));
- }
-
- error_stream (tmp_stream);
+ throw_error (MEMORY_ERROR,
+ _("Error accessing memory address %s: %s."),
+ paddress (target_gdbarch, memaddr),
+ safe_strerror (status));
}
/* 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;
+read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
{
int status;
status = target_read_memory (memaddr, myaddr, len);
@@ -270,96 +237,84 @@ read_memory (memaddr, myaddr, len)
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);
-}
+/* Argument / return result struct for use with
+ do_captured_read_memory_integer(). MEMADDR and LEN are filled in
+ by gdb_read_memory_integer(). RESULT is the contents that were
+ successfully read from MEMADDR of length LEN. */
-/* 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;
+struct captured_read_memory_integer_arguments
{
- 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;
+ CORE_ADDR memaddr;
+ int len;
+ enum bfd_endian byte_order;
+ LONGEST result;
+};
+
+/* Helper function for gdb_read_memory_integer(). DATA must be a
+ pointer to a captured_read_memory_integer_arguments struct.
+ Return 1 if successful. Note that the catch_errors() interface
+ will return 0 if an error occurred while reading memory. This
+ choice of return code is so that we can distinguish between
+ success and failure. */
+
+static int
+do_captured_read_memory_integer (void *data)
{
- memory_error (status, memaddr);
-}
+ struct captured_read_memory_integer_arguments *args = (struct captured_read_memory_integer_arguments*) data;
+ CORE_ADDR memaddr = args->memaddr;
+ int len = args->len;
+ enum bfd_endian byte_order = args->byte_order;
-/* 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);
+ args->result = read_memory_integer (memaddr, len, byte_order);
+
+ return 1;
}
-/* 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;
+/* Read memory at MEMADDR of length LEN and put the contents in
+ RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero
+ if successful. */
+
+int
+safe_read_memory_integer (CORE_ADDR memaddr, int len, enum bfd_endian byte_order,
+ LONGEST *return_value)
{
int status;
+ struct captured_read_memory_integer_arguments args;
+ args.memaddr = memaddr;
+ args.len = len;
+ args.byte_order = byte_order;
- status = target_write_memory (memaddr, myaddr, len);
- if (status != 0)
- memory_error (status, memaddr);
-}
+ status = catch_errors (do_captured_read_memory_integer, &args,
+ "", RETURN_MASK_ALL);
+ if (status)
+ *return_value = args.result;
-/* Read an integer from debugged memory, given address and number of bytes. */
+ return status;
+}
LONGEST
-read_memory_integer (memaddr, len)
- CORE_ADDR memaddr;
- int len;
+read_memory_integer (CORE_ADDR memaddr, int len, enum bfd_endian byte_order)
{
- char buf[sizeof (LONGEST)];
+ gdb_byte buf[sizeof (LONGEST)];
read_memory (memaddr, buf, len);
- return extract_signed_integer (buf, len);
+ return extract_signed_integer (buf, len, byte_order);
}
ULONGEST
-read_memory_unsigned_integer (memaddr, len)
- CORE_ADDR memaddr;
- int len;
+read_memory_unsigned_integer (CORE_ADDR memaddr, int len, enum bfd_endian byte_order)
{
- char buf[sizeof (ULONGEST)];
+ gdb_byte buf[sizeof (ULONGEST)];
read_memory (memaddr, buf, len);
- return extract_unsigned_integer (buf, len);
+ return extract_unsigned_integer (buf, len, byte_order);
}
void
-read_memory_string (memaddr, buffer, max_len)
- CORE_ADDR memaddr;
- char *buffer;
- int max_len;
+read_memory_string (CORE_ADDR memaddr, char *buffer, int max_len)
{
- register char *cp;
- register int i;
+ char *cp;
+ int i;
int cnt;
cp = buffer;
@@ -381,47 +336,44 @@ read_memory_string (memaddr, buffer, max_len)
break;
}
}
-
-#if 0
-/* Enable after 4.12. It is not tested. */
+CORE_ADDR
+read_memory_typed_address (CORE_ADDR addr, struct type *type)
+{
+ gdb_byte *buf = alloca (TYPE_LENGTH (type));
+ read_memory (addr, buf, TYPE_LENGTH (type));
+ return extract_typed_address (buf, type);
+}
-/* 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. */
+/* Same as target_write_memory, but report an error if can't write. */
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;
+write_memory (CORE_ADDR memaddr, const bfd_byte *myaddr, int len)
{
- int i;
- CORE_ADDR curaddr = startaddr;
+ int status;
+ status = target_write_memory (memaddr, myaddr, len);
+ if (status != 0)
+ memory_error (status, memaddr);
+}
- 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;
+/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
+void
+write_memory_unsigned_integer (CORE_ADDR addr, int len, enum bfd_endian byte_order,
+ ULONGEST value)
+{
+ gdb_byte *buf = alloca (len);
+ store_unsigned_integer (buf, len, byte_order, value);
+ write_memory (addr, buf, len);
+}
+
+/* Store VALUE at ADDR in the inferior as a LEN-byte signed integer. */
+void
+write_memory_signed_integer (CORE_ADDR addr, int len, enum bfd_endian byte_order,
+ LONGEST value)
+{
+ gdb_byte *buf = alloca (len);
+ store_signed_integer (buf, len, byte_order, value);
+ write_memory (addr, buf, len);
}
-#endif /* 0 */
/* The current default bfd target. Points to storage allocated for
gnutarget_string. */
@@ -429,17 +381,19 @@ char *gnutarget;
/* Same thing, except it is "auto" not NULL for the default case. */
static char *gnutarget_string;
+static void
+show_gnutarget_string (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("The current BFD target is \"%s\".\n"), value);
+}
-static void set_gnutarget_command
- PARAMS ((char *, int, struct cmd_list_element *));
+static void set_gnutarget_command (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;
+set_gnutarget_command (char *ignore, int from_tty, struct cmd_list_element *c)
{
- if (STREQ (gnutarget_string, "auto"))
+ if (strcmp (gnutarget_string, "auto") == 0)
gnutarget = NULL;
else
gnutarget = gnutarget_string;
@@ -447,32 +401,33 @@ set_gnutarget_command (ignore, from_tty, c)
/* Set the gnutarget. */
void
-set_gnutarget (newtarget)
- char *newtarget;
+set_gnutarget (char *newtarget)
{
if (gnutarget_string != NULL)
- free (gnutarget_string);
- gnutarget_string = savestring (newtarget, strlen (newtarget));
+ xfree (gnutarget_string);
+ gnutarget_string = xstrdup (newtarget);
set_gnutarget_command (NULL, 0, NULL);
}
void
-_initialize_core ()
+_initialize_core (void)
{
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\
+ 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);
+`target core' and `detach' commands."), &cmdlist);
+ set_cmd_completer (c, filename_completer);
+
+
+ add_setshow_string_noescape_cmd ("gnutarget", class_files,
+ &gnutarget_string, _("\
+Set the current BFD target."), _("\
+Show the current BFD target."), _("\
+Use `set gnutarget auto' to specify automatic detection."),
+ set_gnutarget_command,
+ show_gnutarget_string,
+ &setlist, &showlist);
if (getenv ("GNUTARGET"))
set_gnutarget (getenv ("GNUTARGET"));