/* 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"); }