| /* 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 (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, 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 (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 (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%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 (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"); |
| } |