Merged in latest RS6000 diffs from Metin G. Ozisik.

1 files changed, 177 insertions, 0 deletions

diff --git a/gdb/xcoffsolib.c b/gdb/xcoffsolib.c
new file mode 100644
index 0000000000..0ad843225e
--- /dev/null
+++ b/gdb/xcoffsolib.c
@@ -0,0 +1,177 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/ldr.h>
+
+#include "defs.h"
+#include "bfd.h"
+/*#include "libbfd.h"		/* BFD internals (sigh!)  FIXME */
+#include "xcoffsolib.h"
+
+
+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 ("%s%s%s%s: already loaded.\n",
+	  *vp->member ? "(" : "",
+	  vp->member,
+	  *vp->member ? ") " : "",
+	  vp->name);
+	continue;
+      }
+
+      printf ("Loading  %s%s%s%s...",
+	  *vp->member ? "(" : "",
+	  vp->member,
+	  *vp->member ? ") " : "",
+	  vp->name);
+      fflush (stdout);
+
+	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);
+	vmap_symtab (vp, 0, 0);
+	printf ("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 ("No matching shared object found.\n");
+
+}
+
+
+/* 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)";
+}
+
+
+solib_info (ldi)
+register struct ld_info *ldi;
+{
+
+   struct vmap *vp = vmap;
+
+   if (!vp || !vp->nxt) {
+     printf("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 ("\
+Text Range		Data Range		Syms	Shared Object Library\n");
+
+   for (; vp; vp = vp->nxt) {
+
+     printf ("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();
+  solib_add (args, from_tty, (struct target_ops *)0);
+}
+
+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");
+}