/* Work with executable files, for GDB.
- Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
- Inc.
+ Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003, 2007, 2008, 2009, 2010, 2011
+ 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,
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 <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame.h"
#include "target.h"
#include "gdbcmd.h"
#include "language.h"
+#include "filenames.h"
#include "symfile.h"
#include "objfiles.h"
#include "completer.h"
#include "value.h"
#include "exec.h"
+#include "observer.h"
+#include "arch-utils.h"
+#include "gdbthread.h"
+#include "progspace.h"
#include <fcntl.h>
#include "readline/readline.h"
#include <ctype.h>
#include "gdb_stat.h"
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
#include "xcoffsolib.h"
/* Prototypes for local functions */
-static void exec_close (int);
-
static void file_command (char *, int);
static void set_section_command (char *, int);
static void exec_files_info (struct target_ops *);
-static int ignore (CORE_ADDR, char *);
-
static void init_exec_ops (void);
void _initialize_exec (void);
struct target_ops exec_ops;
-/* The Binary File Descriptor handle for the executable file. */
-
-bfd *exec_bfd = NULL;
+/* True if the exec target is pushed on the stack. */
+static int using_exec_ops;
/* Whether to open exec and core files read-only or read-write. */
int write_files = 0;
+static void
+show_write_files (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Writing into executable and core files is %s.\n"),
+ value);
+}
+
struct vmap *vmap;
-void
+static void
exec_open (char *args, int from_tty)
{
target_preopen (from_tty);
exec_file_attach (args, from_tty);
}
+/* Close and clear exec_bfd. If we end up with no target sections to
+ read memory from, this unpushes the exec_ops target. */
+
+void
+exec_close (void)
+{
+ if (exec_bfd)
+ {
+ bfd *abfd = exec_bfd;
+ char *name = bfd_get_filename (abfd);
+
+ gdb_bfd_close_or_warn (abfd);
+ xfree (name);
+
+ /* Removing target sections may close the exec_ops target.
+ Clear exec_bfd before doing so to prevent recursion. */
+ exec_bfd = NULL;
+ exec_bfd_mtime = 0;
+
+ remove_target_sections (abfd);
+ }
+}
+
+/* This is the target_close implementation. Clears all target
+ sections and closes all executable bfds from all program spaces. */
+
static void
-exec_close (int quitting)
+exec_close_1 (int quitting)
{
int need_symtab_cleanup = 0;
struct vmap *vp, *nxt;
+ using_exec_ops = 0;
+
for (nxt = vmap; nxt != NULL;)
{
vp = nxt;
nxt = vp->nxt;
/* if there is an objfile associated with this bfd,
- free_objfile() will do proper cleanup of objfile *and* bfd. */
+ free_objfile() will do proper cleanup of objfile *and* bfd. */
if (vp->objfile)
{
}
else if (vp->bfd != exec_bfd)
/* FIXME-leak: We should be freeing vp->name too, I think. */
- if (!bfd_close (vp->bfd))
- warning (_("cannot close \"%s\": %s"),
- vp->name, bfd_errmsg (bfd_get_error ()));
-
- /* FIXME: This routine is #if 0'd in symfile.c. What should we
- be doing here? Should we just free everything in
- vp->objfile->symtabs? Should free_objfile do that?
- FIXME-as-well: free_objfile already free'd vp->name, so it isn't
- valid here. */
- free_named_symtabs (vp->name);
+ gdb_bfd_close_or_warn (vp->bfd);
+
xfree (vp);
}
vmap = NULL;
- if (exec_bfd)
+ {
+ struct program_space *ss;
+ struct cleanup *old_chain;
+
+ old_chain = save_current_program_space ();
+ ALL_PSPACES (ss)
{
- char *name = bfd_get_filename (exec_bfd);
+ set_current_program_space (ss);
- if (!bfd_close (exec_bfd))
- warning (_("cannot close \"%s\": %s"),
- name, bfd_errmsg (bfd_get_error ()));
- xfree (name);
- exec_bfd = NULL;
- }
+ /* Delete all target sections. */
+ resize_section_table
+ (current_target_sections,
+ -resize_section_table (current_target_sections, 0));
- if (exec_ops.to_sections)
- {
- xfree (exec_ops.to_sections);
- exec_ops.to_sections = NULL;
- exec_ops.to_sections_end = NULL;
+ exec_close ();
}
+
+ do_cleanups (old_chain);
+ }
}
void
exec_file_clear (int from_tty)
{
/* Remove exec file. */
- unpush_target (&exec_ops);
+ exec_close ();
if (from_tty)
printf_unfiltered (_("No executable file now.\n"));
}
-/* Process the first arg in ARGS as the new exec file.
+/* Set FILENAME as the new exec file.
This function is intended to be behave essentially the same
as exec_file_command, except that the latter will detect when
given a pid but not a exec pathname, and the attach command could
figure out the pathname from the pid. (In this case, we shouldn't
ask the user whether the current target should be shut down --
- we're supplying the exec pathname late for good reason.)
-
- ARGS is assumed to be the filename. */
+ we're supplying the exec pathname late for good reason.) */
void
exec_file_attach (char *filename, int from_tty)
{
/* Remove any previous exec file. */
- unpush_target (&exec_ops);
+ exec_close ();
/* Now open and digest the file the user requested, if any. */
{
if (from_tty)
printf_unfiltered (_("No executable file now.\n"));
+
+ set_gdbarch_from_file (NULL);
}
else
{
+ struct cleanup *cleanups;
char *scratch_pathname;
int scratch_chan;
+ struct target_section *sections = NULL, *sections_end = NULL;
+ char **matching;
scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename,
- write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
+ write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
&scratch_pathname);
#if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
if (scratch_chan < 0)
{
char *exename = alloca (strlen (filename) + 5);
+
strcat (strcpy (exename, filename), ".exe");
scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename,
- write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
+ write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
&scratch_pathname);
}
#endif
if (scratch_chan < 0)
perror_with_name (filename);
- exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan);
+ exec_bfd = bfd_fopen (scratch_pathname, gnutarget,
+ write_files ? FOPEN_RUB : FOPEN_RB,
+ scratch_chan);
if (!exec_bfd)
- error (_("\"%s\": could not open as an executable file: %s"),
- scratch_pathname, bfd_errmsg (bfd_get_error ()));
+ {
+ close (scratch_chan);
+ error (_("\"%s\": could not open as an executable file: %s"),
+ scratch_pathname, bfd_errmsg (bfd_get_error ()));
+ }
/* At this point, scratch_pathname and exec_bfd->name both point to the
same malloc'd string. However exec_close() will attempt to free it
via the exec_bfd->name pointer, so we need to make another copy and
- leave exec_bfd as the new owner of the original copy. */
+ leave exec_bfd as the new owner of the original copy. */
scratch_pathname = xstrdup (scratch_pathname);
- make_cleanup (xfree, scratch_pathname);
+ cleanups = make_cleanup (xfree, scratch_pathname);
- if (!bfd_check_format (exec_bfd, bfd_object))
+ if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching))
{
/* Make sure to close exec_bfd, or else "run" might try to use
it. */
- exec_close (0);
+ exec_close ();
error (_("\"%s\": not in executable format: %s"),
- scratch_pathname, bfd_errmsg (bfd_get_error ()));
+ scratch_pathname,
+ gdb_bfd_errmsg (bfd_get_error (), matching));
}
/* FIXME - This should only be run for RS6000, but the ifdef is a poor
way to accomplish. */
#ifdef DEPRECATED_IBM6000_TARGET
- /* Setup initial vmap. */
+ /* Setup initial vmap. */
map_vmap (exec_bfd, 0);
if (vmap == NULL)
{
/* Make sure to close exec_bfd, or else "run" might try to use
it. */
- exec_close (0);
+ exec_close ();
error (_("\"%s\": can't find the file sections: %s"),
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
#endif /* DEPRECATED_IBM6000_TARGET */
- if (build_section_table (exec_bfd, &exec_ops.to_sections,
- &exec_ops.to_sections_end))
+ if (build_section_table (exec_bfd, §ions, §ions_end))
{
/* Make sure to close exec_bfd, or else "run" might try to use
it. */
- exec_close (0);
+ exec_close ();
error (_("\"%s\": can't find the file sections: %s"),
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
-#ifdef DEPRECATED_HPUX_TEXT_END
- DEPRECATED_HPUX_TEXT_END (&exec_ops);
-#endif
+ exec_bfd_mtime = bfd_get_mtime (exec_bfd);
validate_files ();
set_gdbarch_from_file (exec_bfd);
- push_target (&exec_ops);
+ /* Add the executable's sections to the current address spaces'
+ list of sections. This possibly pushes the exec_ops
+ target. */
+ add_target_sections (sections, sections_end);
+ xfree (sections);
/* Tell display code (if any) about the changed file name. */
if (deprecated_exec_file_display_hook)
(*deprecated_exec_file_display_hook) (filename);
+
+ do_cleanups (cleanups);
}
bfd_cache_close_all ();
+ observer_notify_executable_changed ();
}
/* Process the first arg in ARGS as the new exec file.
be called from file_command(), which also calls symbol_file_command()
which can take multiple args.
- If ARGS is NULL, we just want to close the exec file. */
+ If ARGS is NULL, we just want to close the exec file. */
static void
exec_file_command (char *args, int from_tty)
{
char **argv;
char *filename;
-
- target_preopen (from_tty);
+
+ if (from_tty && target_has_execution
+ && !query (_("A program is being debugged already.\n"
+ "Are you sure you want to change the file? ")))
+ error (_("File not changed."));
if (args)
{
+ struct cleanup *cleanups;
+
/* Scan through the args and pick up the first non option arg
as the filename. */
- argv = buildargv (args);
- if (argv == NULL)
- nomem (0);
-
- make_cleanup_freeargv (argv);
+ argv = gdb_buildargv (args);
+ cleanups = make_cleanup_freeargv (argv);
for (; (*argv != NULL) && (**argv == '-'); argv++)
{;
filename = tilde_expand (*argv);
make_cleanup (xfree, filename);
exec_file_attach (filename, from_tty);
+
+ do_cleanups (cleanups);
}
else
exec_file_attach (NULL, from_tty);
}
-/* Set both the exec file and the symbol file, in one command.
+/* Set both the exec file and the symbol file, in one command.
What a novelty. Why did GDB go through four major releases before this
command was added? */
}
\f
-/* Locate all mappable sections of a BFD file.
+/* Locate all mappable sections of a BFD file.
table_pp_char is a char * to get it through bfd_map_over_sections;
we cast it back to its proper type. */
add_to_section_table (bfd *abfd, struct bfd_section *asect,
void *table_pp_char)
{
- struct section_table **table_pp = (struct section_table **) table_pp_char;
+ struct target_section **table_pp = (struct target_section **) table_pp_char;
flagword aflag;
+ /* Check the section flags, but do not discard zero-length sections, since
+ some symbols may still be attached to this section. For instance, we
+ encountered on sparc-solaris 2.10 a shared library with an empty .bss
+ section to which a symbol named "_end" was attached. The address
+ of this symbol still needs to be relocated. */
aflag = bfd_get_section_flags (abfd, asect);
if (!(aflag & SEC_ALLOC))
return;
- if (0 == bfd_section_size (abfd, asect))
- return;
+
(*table_pp)->bfd = abfd;
(*table_pp)->the_bfd_section = asect;
(*table_pp)->addr = bfd_section_vma (abfd, asect);
(*table_pp)++;
}
+int
+resize_section_table (struct target_section_table *table, int num_added)
+{
+ struct target_section *old_value;
+ int old_count;
+ int new_count;
+
+ old_value = table->sections;
+ old_count = table->sections_end - table->sections;
+
+ new_count = num_added + old_count;
+
+ if (new_count)
+ {
+ table->sections = xrealloc (table->sections,
+ sizeof (struct target_section) * new_count);
+ table->sections_end = table->sections + new_count;
+ }
+ else
+ {
+ xfree (table->sections);
+ table->sections = table->sections_end = NULL;
+ }
+
+ return old_count;
+}
+
/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
Returns 0 if OK, 1 on error. */
int
-build_section_table (struct bfd *some_bfd, struct section_table **start,
- struct section_table **end)
+build_section_table (struct bfd *some_bfd, struct target_section **start,
+ struct target_section **end)
{
unsigned count;
count = bfd_count_sections (some_bfd);
if (*start)
xfree (* start);
- *start = (struct section_table *) xmalloc (count * sizeof (**start));
+ *start = (struct target_section *) xmalloc (count * sizeof (**start));
*end = *start;
bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end);
if (*end > *start + count)
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
/* We could realloc the table, but it probably loses for most files. */
return 0;
}
+
+/* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the
+ current set of target sections. */
+
+void
+add_target_sections (struct target_section *sections,
+ struct target_section *sections_end)
+{
+ int count;
+ struct target_section_table *table = current_target_sections;
+
+ count = sections_end - sections;
+
+ if (count > 0)
+ {
+ int space = resize_section_table (table, count);
+
+ memcpy (table->sections + space,
+ sections, count * sizeof (sections[0]));
+
+ /* If these are the first file sections we can provide memory
+ from, push the file_stratum target. */
+ if (!using_exec_ops)
+ {
+ using_exec_ops = 1;
+ push_target (&exec_ops);
+ }
+ }
+}
+
+/* Remove all target sections taken from ABFD. */
+
+void
+remove_target_sections (bfd *abfd)
+{
+ struct target_section *src, *dest;
+ struct target_section_table *table = current_target_sections;
+
+ dest = table->sections;
+ for (src = table->sections; src < table->sections_end; src++)
+ if (src->bfd != abfd)
+ {
+ /* Keep this section. */
+ if (dest < src)
+ *dest = *src;
+ dest++;
+ }
+
+ /* If we've dropped any sections, resize the section table. */
+ if (dest < src)
+ {
+ int old_count;
+
+ old_count = resize_section_table (table, dest - src);
+
+ /* If we don't have any more sections to read memory from,
+ remove the file_stratum target from the stack. */
+ if (old_count + (dest - src) == 0)
+ {
+ struct program_space *pspace;
+
+ ALL_PSPACES (pspace)
+ if (pspace->target_sections.sections
+ != pspace->target_sections.sections_end)
+ return;
+
+ unpush_target (&exec_ops);
+ }
+ }
+}
+
\f
static void
bfdsec_to_vmap (struct bfd *abfd, struct bfd_section *sect, void *arg3)
if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0)
return;
- if (DEPRECATED_STREQ (bfd_section_name (abfd, sect), ".text"))
+ if (strcmp (bfd_section_name (abfd, sect), ".text") == 0)
{
vp->tstart = bfd_section_vma (abfd, sect);
vp->tend = vp->tstart + bfd_section_size (abfd, sect);
vp->tvma = bfd_section_vma (abfd, sect);
vp->toffs = sect->filepos;
}
- else if (DEPRECATED_STREQ (bfd_section_name (abfd, sect), ".data"))
+ else if (strcmp (bfd_section_name (abfd, sect), ".data") == 0)
{
vp->dstart = bfd_section_vma (abfd, sect);
vp->dend = vp->dstart + bfd_section_size (abfd, sect);
vp->dvma = bfd_section_vma (abfd, sect);
}
- /* Silently ignore other types of sections. (FIXME?) */
+ /* Silently ignore other types of sections. (FIXME?) */
}
/* Make a vmap for ABFD which might be a member of the archive ARCH.
vmap_bfd.pvmap = vp;
bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd);
- /* Find the end of the list and append. */
+ /* Find the end of the list and append. */
for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt)
;
*vpp = vp;
return vp;
}
\f
-/* Read or write the exec file.
- Args are address within a BFD file, address within gdb address-space,
- length, and a flag indicating whether to read or write.
+VEC(mem_range_s) *
+section_table_available_memory (VEC(mem_range_s) *memory,
+ CORE_ADDR memaddr, ULONGEST len,
+ struct target_section *sections,
+ struct target_section *sections_end)
+{
+ struct target_section *p;
+
+ for (p = sections; p < sections_end; p++)
+ {
+ if ((bfd_get_section_flags (p->bfd, p->the_bfd_section)
+ & SEC_READONLY) == 0)
+ continue;
- Result is a length:
+ /* Copy the meta-data, adjusted. */
+ if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len))
+ {
+ ULONGEST lo1, hi1, lo2, hi2;
+ struct mem_range *r;
- 0: We cannot handle this address and length.
- > 0: We have handled N bytes starting at this address.
- (If N == length, we did it all.) We might be able
- to handle more bytes beyond this length, but no
- promises.
- < 0: We cannot handle this address, but if somebody
- else handles (-N) bytes, we can start from there.
+ lo1 = memaddr;
+ hi1 = memaddr + len;
- The same routine is used to handle both core and exec files;
- we just tail-call it with more arguments to select between them. */
+ lo2 = p->addr;
+ hi2 = p->endaddr;
+
+ r = VEC_safe_push (mem_range_s, memory, NULL);
+
+ r->start = max (lo1, lo2);
+ r->length = min (hi1, hi2) - r->start;
+ }
+ }
+
+ return memory;
+}
int
-xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
- struct mem_attrib *attrib,
- struct target_ops *target)
+section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST offset, LONGEST len,
+ struct target_section *sections,
+ struct target_section *sections_end,
+ const char *section_name)
{
int res;
- struct section_table *p;
- CORE_ADDR nextsectaddr, memend;
- asection *section = NULL;
+ struct target_section *p;
+ ULONGEST memaddr = offset;
+ ULONGEST memend = memaddr + len;
if (len <= 0)
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
-
- if (overlay_debugging)
- {
- section = find_pc_overlay (memaddr);
- if (pc_in_unmapped_range (memaddr, section))
- memaddr = overlay_mapped_address (memaddr, section);
- }
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
- memend = memaddr + len;
- nextsectaddr = memend;
-
- for (p = target->to_sections; p < target->to_sections_end; p++)
+ for (p = sections; p < sections_end; p++)
{
- if (overlay_debugging && section && p->the_bfd_section &&
- strcmp (section->name, p->the_bfd_section->name) != 0)
- continue; /* not the section we need */
+ if (section_name && strcmp (section_name, p->the_bfd_section->name) != 0)
+ continue; /* not the section we need. */
if (memaddr >= p->addr)
{
if (memend <= p->endaddr)
{
/* Entire transfer is within this section. */
- if (write)
+ if (writebuf)
res = bfd_set_section_contents (p->bfd, p->the_bfd_section,
- myaddr, memaddr - p->addr,
+ writebuf, memaddr - p->addr,
len);
else
res = bfd_get_section_contents (p->bfd, p->the_bfd_section,
- myaddr, memaddr - p->addr,
+ readbuf, memaddr - p->addr,
len);
return (res != 0) ? len : 0;
}
{
/* This section overlaps the transfer. Just do half. */
len = p->endaddr - memaddr;
- if (write)
+ if (writebuf)
res = bfd_set_section_contents (p->bfd, p->the_bfd_section,
- myaddr, memaddr - p->addr,
+ writebuf, memaddr - p->addr,
len);
else
res = bfd_get_section_contents (p->bfd, p->the_bfd_section,
- myaddr, memaddr - p->addr,
+ readbuf, memaddr - p->addr,
len);
return (res != 0) ? len : 0;
}
}
- else
- nextsectaddr = min (nextsectaddr, p->addr);
}
- if (nextsectaddr >= memend)
- return 0; /* We can't help */
+ return 0; /* We can't help. */
+}
+
+struct target_section_table *
+exec_get_section_table (struct target_ops *ops)
+{
+ return current_target_sections;
+}
+
+static LONGEST
+exec_xfer_partial (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, LONGEST len)
+{
+ struct target_section_table *table = target_get_section_table (ops);
+
+ if (object == TARGET_OBJECT_MEMORY)
+ return section_table_xfer_memory_partial (readbuf, writebuf,
+ offset, len,
+ table->sections,
+ table->sections_end,
+ NULL);
else
- return -(nextsectaddr - memaddr); /* Next boundary where we can help */
+ return -1;
}
\f
void
-print_section_info (struct target_ops *t, bfd *abfd)
+print_section_info (struct target_section_table *t, bfd *abfd)
{
- struct section_table *p;
- /* FIXME: 16 is not wide enough when TARGET_ADDR_BIT > 64. */
- int wid = TARGET_ADDR_BIT <= 32 ? 8 : 16;
+ struct gdbarch *gdbarch = gdbarch_from_bfd (abfd);
+ struct target_section *p;
+ /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */
+ int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16;
printf_filtered ("\t`%s', ", bfd_get_filename (abfd));
wrap_here (" ");
printf_filtered (_("file type %s.\n"), bfd_get_target (abfd));
if (abfd == exec_bfd)
{
- printf_filtered (_("\tEntry point: "));
- deprecated_print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout);
- printf_filtered ("\n");
+ /* gcc-3.4 does not like the initialization in
+ <p == t->sections_end>. */
+ bfd_vma displacement = 0;
+ bfd_vma entry_point;
+
+ for (p = t->sections; p < t->sections_end; p++)
+ {
+ asection *asect = p->the_bfd_section;
+
+ if ((bfd_get_section_flags (abfd, asect) & (SEC_ALLOC | SEC_LOAD))
+ != (SEC_ALLOC | SEC_LOAD))
+ continue;
+
+ if (bfd_get_section_vma (abfd, asect) <= abfd->start_address
+ && abfd->start_address < (bfd_get_section_vma (abfd, asect)
+ + bfd_get_section_size (asect)))
+ {
+ displacement = p->addr - bfd_get_section_vma (abfd, asect);
+ break;
+ }
+ }
+ if (p == t->sections_end)
+ warning (_("Cannot find section for the entry point of %s."),
+ bfd_get_filename (abfd));
+
+ entry_point = gdbarch_addr_bits_remove (gdbarch,
+ bfd_get_start_address (abfd)
+ + displacement);
+ printf_filtered (_("\tEntry point: %s\n"),
+ paddress (gdbarch, entry_point));
}
- for (p = t->to_sections; p < t->to_sections_end; p++)
+ for (p = t->sections; p < t->sections_end; p++)
{
printf_filtered ("\t%s", hex_string_custom (p->addr, wid));
printf_filtered (" - %s", hex_string_custom (p->endaddr, wid));
if (info_verbose)
printf_filtered (" @ %s",
hex_string_custom (p->the_bfd_section->filepos, 8));
- printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section));
+ printf_filtered (" is %s", bfd_section_name (p->bfd,
+ p->the_bfd_section));
if (p->bfd != abfd)
printf_filtered (" in %s", bfd_get_filename (p->bfd));
printf_filtered ("\n");
static void
exec_files_info (struct target_ops *t)
{
- print_section_info (t, exec_bfd);
+ print_section_info (current_target_sections, exec_bfd);
if (vmap)
{
+ int addr_size = gdbarch_addr_bit (target_gdbarch) / 8;
struct vmap *vp;
printf_unfiltered (_("\tMapping info for file `%s'.\n"), vmap->name);
printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n",
- strlen_paddr (), "tstart",
- strlen_paddr (), "tend",
- strlen_paddr (), "dstart",
- strlen_paddr (), "dend",
+ addr_size * 2, "tstart",
+ addr_size * 2, "tend",
+ addr_size * 2, "dstart",
+ addr_size * 2, "dend",
"section",
"file(member)");
for (vp = vmap; vp; vp = vp->nxt)
printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n",
- paddr (vp->tstart),
- paddr (vp->tend),
- paddr (vp->dstart),
- paddr (vp->dend),
+ phex (vp->tstart, addr_size),
+ phex (vp->tend, addr_size),
+ phex (vp->dstart, addr_size),
+ phex (vp->dend, addr_size),
vp->name,
*vp->member ? "(" : "", vp->member,
*vp->member ? ")" : "");
}
}
-/* msnyder 5/21/99:
- exec_set_section_offsets sets the offsets of all the sections
- in the exec objfile. */
-
-void
-exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off,
- bfd_signed_vma bss_off)
-{
- struct section_table *sect;
-
- for (sect = exec_ops.to_sections;
- sect < exec_ops.to_sections_end;
- sect++)
- {
- flagword flags;
-
- flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section);
-
- if (flags & SEC_CODE)
- {
- sect->addr += text_off;
- sect->endaddr += text_off;
- }
- else if (flags & (SEC_DATA | SEC_LOAD))
- {
- sect->addr += data_off;
- sect->endaddr += data_off;
- }
- else if (flags & SEC_ALLOC)
- {
- sect->addr += bss_off;
- sect->endaddr += bss_off;
- }
- }
-}
-
static void
set_section_command (char *args, int from_tty)
{
- struct section_table *p;
+ struct target_section *p;
char *secname;
unsigned seclen;
unsigned long secaddr;
char secprint[100];
long offset;
+ struct target_section_table *table;
if (args == 0)
error (_("Must specify section name and its virtual address"));
- /* Parse out section name */
+ /* Parse out section name. */
for (secname = args; !isspace (*args); args++);
seclen = args - secname;
- /* Parse out new virtual address */
+ /* Parse out new virtual address. */
secaddr = parse_and_eval_address (args);
- for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++)
+ table = current_target_sections;
+ for (p = table->sections; p < table->sections_end; p++)
{
- if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen)
+ if (!strncmp (secname, bfd_section_name (exec_bfd,
+ p->the_bfd_section), seclen)
&& bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0')
{
offset = secaddr - p->addr;
error (_("Section %s not found"), secprint);
}
+/* If we can find a section in FILENAME with BFD index INDEX, adjust
+ it to ADDRESS. */
+
+void
+exec_set_section_address (const char *filename, int index, CORE_ADDR address)
+{
+ struct target_section *p;
+ struct target_section_table *table;
+
+ table = current_target_sections;
+ for (p = table->sections; p < table->sections_end; p++)
+ {
+ if (filename_cmp (filename, p->bfd->filename) == 0
+ && index == p->the_bfd_section->index)
+ {
+ p->endaddr += address - p->addr;
+ p->addr = address;
+ }
+ }
+}
+
/* If mourn is being called in all the right places, this could be say
`gdb internal error' (since generic_mourn calls
breakpoint_init_inferior). */
static int
-ignore (CORE_ADDR addr, char *contents)
+ignore (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
{
return 0;
}
-/* Find mapped memory. */
+static int
+exec_has_memory (struct target_ops *ops)
+{
+ /* We can provide memory if we have any file/target sections to read
+ from. */
+ return (current_target_sections->sections
+ != current_target_sections->sections_end);
+}
+
+/* Find mapped memory. */
extern void
-exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR,
- unsigned long,
- int, int, int,
- void *),
- void *))
+exec_set_find_memory_regions (int (*func) (find_memory_region_ftype, void *))
{
exec_ops.to_find_memory_regions = func;
}
exec_ops.to_doc = "Use an executable file as a target.\n\
Specify the filename of the executable file.";
exec_ops.to_open = exec_open;
- exec_ops.to_close = exec_close;
+ exec_ops.to_close = exec_close_1;
exec_ops.to_attach = find_default_attach;
- exec_ops.deprecated_xfer_memory = xfer_memory;
+ exec_ops.to_xfer_partial = exec_xfer_partial;
+ exec_ops.to_get_section_table = exec_get_section_table;
exec_ops.to_files_info = exec_files_info;
exec_ops.to_insert_breakpoint = ignore;
exec_ops.to_remove_breakpoint = ignore;
exec_ops.to_create_inferior = find_default_create_inferior;
exec_ops.to_stratum = file_stratum;
- exec_ops.to_has_memory = 1;
+ exec_ops.to_has_memory = exec_has_memory;
exec_ops.to_make_corefile_notes = exec_make_note_section;
exec_ops.to_magic = OPS_MAGIC;
}
if (!dbx_commands)
{
- c = add_cmd ("file", class_files, file_command,
- "Use FILE as program to be debugged.\n\
+ c = add_cmd ("file", class_files, file_command, _("\
+Use FILE as program to be debugged.\n\
It is read for its symbols, for getting the contents of pure memory,\n\
and it is the program executed when you use the `run' command.\n\
If FILE cannot be found as specified, your execution directory path\n\
($PATH) is searched for a command of that name.\n\
-No arg means to have no executable file and no symbols.", &cmdlist);
+No arg means to have no executable file and no symbols."), &cmdlist);
set_cmd_completer (c, filename_completer);
}
- c = add_cmd ("exec-file", class_files, exec_file_command,
- "Use FILE as program for getting contents of pure memory.\n\
+ c = add_cmd ("exec-file", class_files, exec_file_command, _("\
+Use FILE as program for getting contents of pure memory.\n\
If FILE cannot be found as specified, your execution directory path\n\
is searched for a command of that name.\n\
-No arg means have no executable file.", &cmdlist);
+No arg means have no executable file."), &cmdlist);
set_cmd_completer (c, filename_completer);
- add_com ("section", class_files, set_section_command,
- "Change the base address of section SECTION of the exec file to ADDR.\n\
+ add_com ("section", class_files, set_section_command, _("\
+Change the base address of section SECTION of the exec file to ADDR.\n\
This can be used if the exec file does not contain section addresses,\n\
(such as in the a.out format), or when the addresses specified in the\n\
file itself are wrong. Each section must be changed separately. The\n\
-``info files'' command lists all the sections and their addresses.");
-
- deprecated_add_show_from_set
- (add_set_cmd ("write", class_support, var_boolean, (char *) &write_files,
- "Set writing into executable and core files.",
- &setlist),
- &showlist);
+``info files'' command lists all the sections and their addresses."));
+
+ add_setshow_boolean_cmd ("write", class_support, &write_files, _("\
+Set writing into executable and core files."), _("\
+Show writing into executable and core files."), NULL,
+ NULL,
+ show_write_files,
+ &setlist, &showlist);
add_target (&exec_ops);
}