/* Work with executable files, for GDB.
- Copyright 1988, 1989, 1991, 1992, 1993, 1994, 1997, 1998, 2001
+ Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GDB.
#include "symfile.h"
#include "objfiles.h"
#include "completer.h"
+#include "value.h"
#ifdef USG
#include <sys/types.h>
#endif
#include <fcntl.h>
+#include <readline/readline.h>
#include "gdb_string.h"
#include "gdbcore.h"
/* Prototypes for local functions */
-static void add_to_section_table (bfd *, sec_ptr, PTR);
+static void add_to_section_table (bfd *, sec_ptr, void *);
static void exec_close (int);
static void exec_files_info (struct target_ops *);
-static void bfdsec_to_vmap (bfd *, sec_ptr, PTR);
+static void bfdsec_to_vmap (bfd *, sec_ptr, void *);
static int ignore (CORE_ADDR, char *);
void _initialize_exec (void);
-extern int info_verbose;
-
/* The target vector for executable files. */
struct target_ops exec_ops;
#ifndef NEED_TEXT_START_END
#define NEED_TEXT_START_END (0)
#endif
-CORE_ADDR text_start = 0;
CORE_ADDR text_end = 0;
struct vmap *vmap;
+void
+exec_open (char *args, int from_tty)
+{
+ target_preopen (from_tty);
+ exec_file_attach (args, from_tty);
+}
+
/* ARGSUSED */
static void
exec_close (int quitting)
}
}
+void
+exec_file_clear (int from_tty)
+{
+ /* Remove exec file. */
+ unpush_target (&exec_ops);
+
+ if (from_tty)
+ printf_unfiltered ("No executable file now.\n");
+}
+
/* Process the first arg in ARGS as the new exec file.
This function is intended to be behave essentially the same
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.) */
+ we're supplying the exec pathname late for good reason.)
+
+ ARGS is assumed to be the filename. */
void
-exec_file_attach (char *args, int from_tty)
+exec_file_attach (char *filename, int from_tty)
{
- char **argv;
- char *filename;
-
/* Remove any previous exec file. */
unpush_target (&exec_ops);
/* Now open and digest the file the user requested, if any. */
- if (args)
+ if (!filename)
+ {
+ if (from_tty)
+ printf_unfiltered ("No executable file now.\n");
+ }
+ else
{
char *scratch_pathname;
int scratch_chan;
- /* 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);
-
- for (; (*argv != NULL) && (**argv == '-'); argv++)
- {;
- }
- if (*argv == NULL)
- error ("No executable file name was specified");
-
- filename = tilde_expand (*argv);
- make_cleanup (xfree, filename);
-
scratch_chan = openp (getenv ("PATH"), 1, filename,
write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
&scratch_pathname);
/* FIXME: The comment above does not match the code. The
code checks for sections with are either code *or*
readonly. */
- text_start = ~(CORE_ADDR) 0;
+ CORE_ADDR text_start = ~(CORE_ADDR) 0;
text_end = (CORE_ADDR) 0;
for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++)
if (bfd_get_section_flags (p->bfd, p->the_bfd_section)
if (exec_file_display_hook)
(*exec_file_display_hook) (filename);
}
- else if (from_tty)
- printf_unfiltered ("No executable file now.\n");
}
/* Process the first arg in ARGS as the new exec file.
Note that we have to explicitly ignore additional args, since we can
be called from file_command(), which also calls symbol_file_command()
- which can take multiple args. */
+ which can take multiple args.
+
+ If ARGS is NULL, we just want to close the exec file. */
-void
+static void
exec_file_command (char *args, int from_tty)
{
+ char **argv;
+ char *filename;
+
target_preopen (from_tty);
- exec_file_attach (args, from_tty);
+
+ if (args)
+ {
+ /* 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);
+
+ for (; (*argv != NULL) && (**argv == '-'); argv++)
+ {;
+ }
+ if (*argv == NULL)
+ error ("No executable file name was specified");
+
+ filename = tilde_expand (*argv);
+ make_cleanup (xfree, filename);
+ exec_file_attach (filename, from_tty);
+ }
+ else
+ exec_file_attach (NULL, from_tty);
}
/* Set both the exec file and the symbol file, in one command.
we cast it back to its proper type. */
static void
-add_to_section_table (bfd *abfd, sec_ptr asect, PTR table_pp_char)
+add_to_section_table (bfd *abfd, sec_ptr asect, void *table_pp_char)
{
struct section_table **table_pp = (struct section_table **) table_pp_char;
flagword aflag;
*end = *start;
bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end);
if (*end > *start + count)
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
/* We could realloc the table, but it probably loses for most files. */
return 0;
}
\f
static void
-bfdsec_to_vmap (bfd *abfd, sec_ptr sect, PTR arg3)
+bfdsec_to_vmap (bfd *abfd, sec_ptr sect, void *arg3)
{
struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3;
struct vmap *vp;
struct mem_attrib *attrib,
struct target_ops *target)
{
- boolean res;
+ int res;
struct section_table *p;
CORE_ADDR nextsectaddr, memend;
- boolean (*xfer_fn) (bfd *, sec_ptr, PTR, file_ptr, bfd_size_type);
- asection *section;
+ int (*xfer_fn) (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
+ asection *section = NULL;
if (len <= 0)
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
if (overlay_debugging)
{
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. */
- res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
- memaddr - p->addr, len);
- return (res != 0) ? len : 0;
- }
- else if (memaddr >= p->endaddr)
- {
- /* This section ends before the transfer starts. */
- continue;
- }
- else
- {
- /* This section overlaps the transfer. Just do half. */
- len = p->endaddr - memaddr;
- res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
- memaddr - p->addr, len);
- return (res != 0) ? len : 0;
- }
+ {
+ if (memend <= p->endaddr)
+ {
+ /* Entire transfer is within this section. */
+ res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
+ memaddr - p->addr, len);
+ return (res != 0) ? len : 0;
+ }
+ else if (memaddr >= p->endaddr)
+ {
+ /* This section ends before the transfer starts. */
+ continue;
+ }
+ else
+ {
+ /* This section overlaps the transfer. Just do half. */
+ len = p->endaddr - memaddr;
+ res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
+ memaddr - p->addr, len);
+ return (res != 0) ? len : 0;
+ }
+ }
else
nextsectaddr = min (nextsectaddr, p->addr);
}
print_section_info (struct target_ops *t, bfd *abfd)
{
struct section_table *p;
+ /* FIXME: "016l" is not wide enough when TARGET_ADDR_BIT > 64. */
+ char *fmt = TARGET_ADDR_BIT <= 32 ? "08l" : "016l";
printf_filtered ("\t`%s', ", bfd_get_filename (abfd));
wrap_here (" ");
}
for (p = t->to_sections; p < t->to_sections_end; p++)
{
- /* FIXME-32x64 need a print_address_numeric with field width */
- printf_filtered ("\t%s", local_hex_string_custom ((unsigned long) p->addr, "08l"));
- printf_filtered (" - %s", local_hex_string_custom ((unsigned long) p->endaddr, "08l"));
+ printf_filtered ("\t%s", local_hex_string_custom (p->addr, fmt));
+ printf_filtered (" - %s", local_hex_string_custom (p->endaddr, fmt));
+
+ /* FIXME: A format of "08l" is not wide enough for file offsets
+ larger than 4GB. OTOH, making it "016l" isn't desirable either
+ since most output will then be much wider than necessary. It
+ may make sense to test the size of the file and choose the
+ format string accordingly. */
if (info_verbose)
printf_filtered (" @ %s",
- local_hex_string_custom ((unsigned long) p->the_bfd_section->filepos, "08l"));
+ local_hex_string_custom (p->the_bfd_section->filepos, "08l"));
printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section));
if (p->bfd != abfd)
{
return 0;
}
+/* Find mapped memory. */
+
+extern void
+exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *))
+{
+ exec_ops.to_find_memory_regions = func;
+}
+
+static char *exec_make_note_section (bfd *, int *);
+
/* Fill in the exec file target vector. Very few entries need to be
defined. */
-void
+static void
init_exec_ops (void)
{
exec_ops.to_shortname = "exec";
exec_ops.to_longname = "Local exec file";
exec_ops.to_doc = "Use an executable file as a target.\n\
Specify the filename of the executable file.";
- exec_ops.to_open = exec_file_command;
+ exec_ops.to_open = exec_open;
exec_ops.to_close = exec_close;
exec_ops.to_attach = find_default_attach;
- exec_ops.to_require_attach = find_default_require_attach;
- exec_ops.to_require_detach = find_default_require_detach;
exec_ops.to_xfer_memory = xfer_memory;
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_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
exec_ops.to_stratum = file_stratum;
exec_ops.to_has_memory = 1;
+ exec_ops.to_make_corefile_notes = exec_make_note_section;
exec_ops.to_magic = OPS_MAGIC;
}
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);
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
}
c = add_cmd ("exec-file", class_files, exec_file_command,
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);
- c->completer = filename_completer;
+ 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_target (&exec_ops);
}
+
+static char *
+exec_make_note_section (bfd *obfd, int *note_size)
+{
+ error ("Can't create a corefile");
+}
projects / deliverable / binutils-gdb.git / blobdiff