/* Work with executable files, for GDB.
- Copyright (C) 1988, 1989 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h>
#include "defs.h"
-#include "param.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
#include <ctype.h>
#include <sys/stat.h>
-extern char *getenv();
-extern void child_create_inferior (), child_attach ();
-extern void symbol_file_command ();
+/* Prototypes for local functions */
+
+static void
+add_to_section_table PARAMS ((bfd *, sec_ptr, PTR));
+
+static void
+exec_close PARAMS ((int));
+
+static void
+file_command PARAMS ((char *, int));
+
+static void
+set_section_command PARAMS ((char *, int));
+
+static void
+exec_files_info PARAMS ((struct target_ops *));
+
+extern int info_verbose;
/* The Binary File Descriptor handle for the executable file. */
int write_files = 0;
+/* Text start and end addresses (KLUDGE) if needed */
+
+#ifdef NEED_TEXT_START_END
+CORE_ADDR text_start = 0;
+CORE_ADDR text_end = 0;
+#endif
+
/* Forward decl */
extern struct target_ops exec_ops;
/* ARGSUSED */
-void
+static void
exec_close (quitting)
int quitting;
{
bfd_close (exec_bfd);
exec_bfd = NULL;
}
- if (exec_ops.sections) {
- free (exec_ops.sections);
- exec_ops.sections = NULL;
- exec_ops.sections_end = NULL;
+ if (exec_ops.to_sections) {
+ free ((PTR)exec_ops.to_sections);
+ exec_ops.to_sections = NULL;
+ exec_ops.to_sections_end = NULL;
}
}
+/* 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. */
+
void
-exec_file_command (filename, from_tty)
- char *filename;
+exec_file_command (args, from_tty)
+ char *args;
int from_tty;
{
+ char **argv;
+ char *filename;
+
target_preopen (from_tty);
/* Remove any previous exec file. */
/* Now open and digest the file the user requested, if any. */
- if (filename)
+ if (args)
{
char *scratch_pathname;
int scratch_chan;
- filename = tilde_expand (filename);
+ /* Scan through the args and pick up the first non option arg
+ as the filename. */
+
+ if ((argv = buildargv (args)) == NULL)
+ {
+ nomem (0);
+ }
+ make_cleanup (freeargv, (char *) argv);
+
+ for (; (*argv != NULL) && (**argv == '-'); argv++) {;}
+ if (*argv == NULL)
+ {
+ error ("no exec file name was specified");
+ }
+
+ filename = tilde_expand (*argv);
make_cleanup (free, filename);
scratch_chan = openp (getenv ("PATH"), 1, filename,
error ("\"%s\": not in executable format: %s.",
scratch_pathname, bfd_errmsg (bfd_error));
-#if FIXME
-/* This code needs to be incorporated into BFD */
-#ifdef COFF_ENCAPSULATE
- /* If we have a coff header, it can give us better values for
- text_start and exec_data_start. This is particularly useful
- for remote debugging of embedded systems. */
- if (N_FLAGS(exec_aouthdr) & N_FLAGS_COFF_ENCAPSULATE)
- {
- struct coffheader ch;
- int val;
- val = lseek (execchan, -(sizeof (AOUTHDR) + sizeof (ch)), 1);
- if (val == -1)
- perror_with_name (filename);
- val = myread (execchan, &ch, sizeof (ch));
- if (val < 0)
- perror_with_name (filename);
- text_start = ch.text_start;
- exec_data_start = ch.data_start;
- } else
-#endif
- {
- text_start =
- IS_OBJECT_FILE (exec_aouthdr) ? 0 : N_TXTADDR (exec_aouthdr);
- exec_data_start = IS_OBJECT_FILE (exec_aouthdr)
- ? exec_aouthdr.a_text : N_DATADDR (exec_aouthdr);
- }
-#endif FIXME
-
- if (build_section_table (exec_bfd, &exec_ops.sections,
- &exec_ops.sections_end))
+ if (build_section_table (exec_bfd, &exec_ops.to_sections,
+ &exec_ops.to_sections_end))
error ("Can't find the file sections in `%s': %s",
exec_bfd->filename, bfd_errmsg (bfd_error));
+#ifdef NEED_TEXT_START_END
+ /* This is a KLUDGE (FIXME) because a few places in a few ports
+ (29K springs to mind) need this info for now. */
+ {
+ struct section_table *p;
+ for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++)
+ if (!strcmp (".text", bfd_section_name (p->bfd, p->sec_ptr)))
+ {
+ text_start = p->addr;
+ text_end = p->endaddr;
+ break;
+ }
+ }
+#endif
+
validate_files ();
push_target (&exec_ops);
What a novelty. Why did GDB go through four major releases before this
command was added? */
-void
+static void
file_command (arg, from_tty)
char *arg;
int from_tty;
table_pp_char is a char * to get it through bfd_map_over_sections;
we cast it back to its proper type. */
-void
+static void
add_to_section_table (abfd, asect, table_pp_char)
bfd *abfd;
sec_ptr asect;
- char *table_pp_char;
+ PTR table_pp_char;
{
struct section_table **table_pp = (struct section_table **)table_pp_char;
flagword aflag;
/* FIXME, we need to handle BSS segment here...it alloc's but doesn't load */
if (!(aflag & SEC_LOAD))
return;
+ if (0 == bfd_section_size (abfd, asect))
+ return;
(*table_pp)->bfd = abfd;
(*table_pp)->sec_ptr = asect;
(*table_pp)->addr = bfd_section_vma (abfd, asect);
(*table_pp)++;
}
+/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
+ Returns 0 if OK, 1 on error. */
+
int
build_section_table (some_bfd, start, end)
bfd *some_bfd;
if (count == 0)
abort(); /* return 1? */
if (*start)
- free (*start);
+ free ((PTR)*start);
*start = (struct section_table *) xmalloc (count * sizeof (**start));
*end = *start;
bfd_map_over_sections (some_bfd, add_to_section_table, (char *)end);
boolean res;
struct section_table *p;
CORE_ADDR nextsectaddr, memend;
- boolean (*xfer_fn) ();
+ boolean (*xfer_fn) PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
if (len <= 0)
abort();
xfer_fn = write? bfd_set_section_contents: bfd_get_section_contents;
nextsectaddr = memend;
- for (p = target->sections; p < target->sections_end; p++)
+ for (p = target->to_sections; p < target->to_sections_end; p++)
{
if (p->addr <= memaddr)
if (p->endaddr >= memend)
#endif /* REG_STACK_SEGMENT */
#endif FIXME
\f
-static void
-exec_files_info ()
+void
+print_section_info (t, abfd)
+ struct target_ops *t;
+ bfd *abfd;
{
struct section_table *p;
- printf ("\tExecutable file `%s'.\n", bfd_get_filename(exec_bfd));
+ printf_filtered ("\t`%s', ", bfd_get_filename(abfd));
+ wrap_here (" ");
+ printf_filtered ("file type %s.\n", bfd_get_target(abfd));
+
+ for (p = t->to_sections; p < t->to_sections_end; p++) {
+ printf_filtered ("\t%s", local_hex_string_custom (p->addr, "08"));
+ printf_filtered (" - %s", local_hex_string_custom (p->endaddr, "08"));
+ if (info_verbose)
+ printf_filtered (" @ %s",
+ local_hex_string_custom (p->sec_ptr->filepos, "08"));
+ printf_filtered (" is %s", bfd_section_name (p->bfd, p->sec_ptr));
+ if (p->bfd != abfd) {
+ printf_filtered (" in %s", bfd_get_filename (p->bfd));
+ }
+ printf_filtered ("\n");
+ }
+}
- for (p = exec_ops.sections; p < exec_ops.sections_end; p++)
- printf("\texecutable from 0x%08x to 0x%08x is %s\n",
- p->addr, p->endaddr,
- bfd_section_name (exec_bfd, p->sec_ptr));
+static void
+exec_files_info (t)
+ struct target_ops *t;
+{
+ print_section_info (t, exec_bfd);
}
static void
/* Parse out new virtual address */
secaddr = parse_and_eval_address (args);
- for (p = exec_ops.sections; p < exec_ops.sections_end; p++) {
+ for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) {
if (!strncmp (secname, bfd_section_name (exec_bfd, p->sec_ptr), seclen)
&& bfd_section_name (exec_bfd, p->sec_ptr)[seclen] == '\0') {
offset = secaddr - p->addr;
p->addr += offset;
p->endaddr += offset;
- exec_files_info();
+ if (from_tty)
+ exec_files_info(&exec_ops);
return;
}
}
0, 0, /* insert_breakpoint, remove_breakpoint, */
0, 0, 0, 0, 0, /* terminal stuff */
0, 0, /* kill, load */
- 0, 0, /* call fn, lookup sym */
+ 0, /* lookup sym */
child_create_inferior,
0, /* mourn_inferior */
file_stratum, 0, /* next */
projects / binutils.git / blobdiff