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/* Shared library support for RS/6000 (xcoff) object files, for GDB.
Copyright 1991, 1992 Free Software Foundation.
Contributed by IBM Corporation.
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. */
#if 0
#include <sys/types.h>
#include <sys/ldr.h>
#endif
#include "defs.h"
#include "bfd.h"
#include "xcoffsolib.h"
#include "inferior.h"
#include "command.h"
/* Hook to relocate symbols at runtime. If gdb is build natively, this
hook is initialized in by rs6000-nat.c. If not, it is currently left
NULL and never called. */
void (*xcoff_relocate_symtab_hook) (unsigned int) = NULL;
#ifdef SOLIB_SYMBOLS_MANUAL
extern struct symtab *current_source_symtab;
extern int current_source_line;
/* The real work of adding a shared library file to the symtab and
the section list. */
void
solib_add (char *arg_string, int from_tty, struct target_ops *target)
{
char *val;
struct vmap *vp = vmap;
struct objfile *obj;
struct symtab *saved_symtab;
int saved_line;
int loaded = 0; /* true if any shared obj loaded */
int matched = 0; /* true if any shared obj matched */
if (arg_string == 0)
re_comp (".");
else if (val = (char *) re_comp (arg_string))
{
error ("Invalid regexp: %s", val);
}
if (!vp || !vp->nxt)
return;
/* save current symbol table and line number, in case they get changed
in symbol loading process. */
saved_symtab = current_source_symtab;
saved_line = current_source_line;
/* skip over the first vmap, it is the main program, always loaded. */
vp = vp->nxt;
for (; vp; vp = vp->nxt)
{
if (re_exec (vp->name) || (*vp->member && re_exec (vp->member)))
{
matched = 1;
/* if already loaded, continue with the next one. */
if (vp->loaded)
{
printf_unfiltered ("%s%s%s%s: already loaded.\n",
*vp->member ? "(" : "",
vp->member,
*vp->member ? ") " : "",
vp->name);
continue;
}
printf_unfiltered ("Loading %s%s%s%s...",
*vp->member ? "(" : "",
vp->member,
*vp->member ? ") " : "",
vp->name);
gdb_flush (gdb_stdout);
/* This is gross and doesn't work. If this code is re-enabled,
just stick a objfile member into the struct vmap; that's the
way solib.c (for SunOS/SVR4) does it. */
obj = lookup_objfile_bfd (vp->bfd);
if (!obj)
{
warning ("\nObj structure for the shared object not found. Loading failed.");
continue;
}
syms_from_objfile (obj, NULL, 0, 0);
new_symfile_objfile (obj, 0, 0);
vmap_symtab (vp);
printf_unfiltered ("Done.\n");
loaded = vp->loaded = 1;
}
}
/* if any shared object is loaded, then misc_func_vector needs sorting. */
if (loaded)
{
#if 0
sort_misc_function_vector ();
#endif
current_source_symtab = saved_symtab;
current_source_line = saved_line;
/* Getting new symbols might change our opinion about what is frameless.
Is this correct?? FIXME. */
/* reinit_frame_cache(); */
}
else if (!matched)
printf_unfiltered ("No matching shared object found.\n");
}
#endif /* SOLIB_SYMBOLS_MANUAL */
/* Return the module name of a given text address. Note that returned buffer
is not persistent. */
char *
pc_load_segment_name (CORE_ADDR addr)
{
static char buffer[BUFSIZ];
struct vmap *vp = vmap;
buffer[0] = buffer[1] = '\0';
for (; vp; vp = vp->nxt)
if (vp->tstart <= addr && addr < vp->tend)
{
if (*vp->member)
{
buffer[0] = '(';
strcat (&buffer[1], vp->member);
strcat (buffer, ")");
}
strcat (buffer, vp->name);
return buffer;
}
return "(unknown load module)";
}
static void solib_info (char *, int);
static void
solib_info (char *args, int from_tty)
{
struct vmap *vp = vmap;
/* Check for new shared libraries loaded with load (). */
if (xcoff_relocate_symtab_hook != NULL)
(*xcoff_relocate_symtab_hook) (inferior_pid);
if (vp == NULL || vp->nxt == NULL)
{
printf_unfiltered ("No shared libraries loaded at this time.\n");
return;
}
/* Skip over the first vmap, it is the main program, always loaded. */
vp = vp->nxt;
printf_unfiltered ("\
Text Range Data Range Syms Shared Object Library\n");
for (; vp != NULL; vp = vp->nxt)
{
printf_unfiltered ("0x%s-0x%s 0x%s-0x%s %s %s%s%s%s\n",
paddr (vp->tstart),paddr (vp->tend),
paddr (vp->dstart), paddr (vp->dend),
vp->loaded ? "Yes" : "No ",
*vp->member ? "(" : "",
vp->member,
*vp->member ? ") " : "",
vp->name);
}
}
void
sharedlibrary_command (char *args, int from_tty)
{
dont_repeat ();
/* Check for new shared libraries loaded with load (). */
if (xcoff_relocate_symtab_hook != NULL)
(*xcoff_relocate_symtab_hook) (inferior_pid);
#ifdef SOLIB_SYMBOLS_MANUAL
solib_add (args, from_tty, (struct target_ops *) 0);
#endif /* SOLIB_SYMBOLS_MANUAL */
}
void
_initialize_solib (void)
{
add_com ("sharedlibrary", class_files, sharedlibrary_command,
"Load shared object library symbols for files matching REGEXP.");
add_info ("sharedlibrary", solib_info,
"Status of loaded shared object libraries");
}
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