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authorStan Shebs <shebs@apple.com>1999-04-16 01:35:26 +0000
committerStan Shebs <shebs@apple.com>1999-04-16 01:35:26 +0000
commit14cd51f7793a9ce07bc435069f57269450141363 (patch)
tree280a2da48f771d61be5b451ddbacdf9ef8e9ad13 /gdb/xcoffsolib.c
downloadgdb-14cd51f7793a9ce07bc435069f57269450141363.tar.gz
Initial revision
Diffstat (limited to 'gdb/xcoffsolib.c')
-rw-r--r--gdb/xcoffsolib.c220
1 files changed, 220 insertions, 0 deletions
diff --git a/gdb/xcoffsolib.c b/gdb/xcoffsolib.c
new file mode 100644
index 00000000000..13d8065ea1d
--- /dev/null
+++ b/gdb/xcoffsolib.c
@@ -0,0 +1,220 @@
+/* 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) 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;
+ }
+
+ 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. */
+
+char *
+pc_load_segment_name (addr)
+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 PARAMS ((char *, int));
+
+static void
+solib_info (args, from_tty)
+ 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%08x-0x%08x 0x%08x-0x%08x %s %s%s%s%s\n",
+ vp->tstart, vp->tend,
+ vp->dstart, vp->dend,
+ vp->loaded ? "Yes" : "No ",
+ *vp->member ? "(" : "",
+ vp->member,
+ *vp->member ? ") " : "",
+ vp->name);
+ }
+}
+
+void
+sharedlibrary_command (args, from_tty)
+ 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()
+{
+ 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");
+}