/* Shared library support for RS/6000 (xcoff) object files, for GDB.
- Copyright 1991, 1992 Free Software Foundation.
+ Copyright (C) 1991-1992, 1995-1996, 1999-2001, 2007-2012 Free
+ Software Foundation, Inc.
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
+ 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. */
-
-#if 0
-#include <sys/types.h>
-#include <sys/ldr.h>
-#endif
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#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) PARAMS ((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 (arg_string, from_tty, target)
- 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;
- }
+#include "gdbcmd.h"
+#include "symfile.h"
+#include "frame.h"
+#include "gdb_regex.h"
- syms_from_objfile (obj, 0, 0, 0);
- new_symfile_objfile (obj, 0, 0);
- vmap_symtab (vp, 0, 0);
- 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. */
+/* If ADDR lies in a shared library, return its name.
+ Note that returned name points to static data whose content is overwritten
+ by each call. */
char *
-pc_load_segment_name (addr)
- CORE_ADDR addr;
+xcoff_solib_address (CORE_ADDR addr)
{
- static char buffer[BUFSIZ];
+ static char *buffer = NULL;
struct vmap *vp = vmap;
- buffer[0] = buffer[1] = '\0';
- for (; vp; vp = vp->nxt)
+ /* The first vmap entry is for the exec file. */
+
+ if (vp == NULL)
+ return NULL;
+ for (vp = vp->nxt; 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);
+ xfree (buffer);
+ buffer = xstrprintf ("%s%s%s%s",
+ vp->name,
+ *vp->member ? "(" : "",
+ vp->member,
+ *vp->member ? ")" : "");
return buffer;
}
- return "(unknown load module)";
+ return NULL;
}
-static void solib_info PARAMS ((char *, int));
+static void solib_info (char *, int);
+static void sharedlibrary_command (char *pattern, int from_tty);
static void
-solib_info (args, from_tty)
- char *args;
- int from_tty;
+solib_info (char *args, int from_tty)
{
+ int addr_size = gdbarch_addr_bit (target_gdbarch) / 8;
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 (! ptid_equal (inferior_ptid, null_ptid))
+ xcoff_relocate_symtab (PIDGET (inferior_ptid));
if (vp == NULL || vp->nxt == NULL)
{
/* 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");
+ printf_unfiltered ("Text Range Data Range "
+ "Syms Shared Object Library\n");
for (; vp != NULL; vp = vp->nxt)
{
- printf_unfiltered ("0x%08x-0x%08x 0x%08x-0x%08x %s %s%s%s%s\n",
- vp->tstart, vp->tend,
- vp->dstart, vp->dend,
+ printf_unfiltered ("0x%s-0x%s 0x%s-0x%s %s %s%s%s%s\n",
+ phex (vp->tstart, addr_size),
+ phex (vp->tend, addr_size),
+ phex (vp->dstart, addr_size),
+ phex (vp->dend, addr_size),
vp->loaded ? "Yes" : "No ",
+ vp->name,
*vp->member ? "(" : "",
vp->member,
- *vp->member ? ") " : "",
- vp->name);
+ *vp->member ? ")" : "");
}
}
-void
-sharedlibrary_command (args, from_tty)
- char *args;
- int from_tty;
+static void
+sharedlibrary_command (char *pattern, 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);
+ if (! ptid_equal (inferior_ptid, null_ptid))
+ xcoff_relocate_symtab (PIDGET (inferior_ptid));
+
+ if (pattern)
+ {
+ char *re_err = re_comp (pattern);
+
+ if (re_err)
+ error (_("Invalid regexp: %s"), re_err);
+ }
-#ifdef SOLIB_SYMBOLS_MANUAL
- solib_add (args, from_tty, (struct target_ops *) 0);
-#endif /* SOLIB_SYMBOLS_MANUAL */
+ /* Walk the list of currently loaded shared libraries, and read
+ symbols for any that match the pattern --- or any whose symbols
+ aren't already loaded, if no pattern was given. */
+ {
+ int any_matches = 0;
+ int loaded_any_symbols = 0;
+ struct vmap *vp = vmap;
+
+ if (!vp)
+ return;
+
+ /* skip over the first vmap, it is the main program, always loaded. */
+ for (vp = vp->nxt; vp; vp = vp->nxt)
+ if (! pattern
+ || re_exec (vp->name)
+ || (*vp->member && re_exec (vp->member)))
+ {
+ any_matches = 1;
+
+ if (vp->loaded)
+ {
+ if (from_tty)
+ printf_unfiltered ("Symbols already loaded for %s\n",
+ vp->name);
+ }
+ else
+ {
+ if (vmap_add_symbols (vp))
+ loaded_any_symbols = 1;
+ }
+ }
+
+ if (from_tty && pattern && ! any_matches)
+ printf_unfiltered
+ ("No loaded shared libraries match the pattern `%s'.\n", pattern);
+
+ if (loaded_any_symbols)
+ {
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
+ reinit_frame_cache ();
+ }
+ }
}
void
-_initialize_solib ()
+_initialize_xcoffsolib (void)
{
add_com ("sharedlibrary", class_files, sharedlibrary_command,
- "Load shared object library symbols for files matching REGEXP.");
+ _("Load shared object library symbols for files matching REGEXP."));
add_info ("sharedlibrary", solib_info,
- "Status of loaded shared object libraries");
+ _("Status of loaded shared object libraries"));
+
+ add_setshow_boolean_cmd ("auto-solib-add", class_support,
+ &auto_solib_add, _("\
+Set autoloading of shared library symbols."), _("\
+Show autoloading of shared library symbols."), _("\
+If \"on\", symbols from all shared object libraries will be loaded\n\
+automatically when the inferior begins execution, when the dynamic linker\n\
+informs gdb that a new library has been loaded, or when attaching to the\n\
+inferior. Otherwise, symbols must be loaded manually, using \
+`sharedlibrary'."),
+ NULL,
+ NULL, /* FIXME: i18n: */
+ &setlist, &showlist);
}
projects / deliverable / binutils-gdb.git / blobdiff