diff options
Diffstat (limited to 'contrib/gdb/gdb/xcoffsolib.c')
| -rw-r--r-- | contrib/gdb/gdb/xcoffsolib.c | 300 |
1 files changed, 138 insertions, 162 deletions
diff --git a/contrib/gdb/gdb/xcoffsolib.c b/contrib/gdb/gdb/xcoffsolib.c index 13d8065..99d2cc8 100644 --- a/contrib/gdb/gdb/xcoffsolib.c +++ b/contrib/gdb/gdb/xcoffsolib.c @@ -1,177 +1,78 @@ /* Shared library support for RS/6000 (xcoff) object files, for GDB. - Copyright 1991, 1992 Free Software Foundation. + Copyright 1991, 1992, 1995, 1996, 1999, 2000, 2001 + Free Software Foundation, Inc. Contributed by IBM Corporation. -This file is part of GDB. + 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 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. + 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 + 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. */ #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; +#include "gdbcmd.h" +#include "symfile.h" +#include "frame.h" +#include "gdb_regex.h" - 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. */ +/* 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]; - 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); + static char *buffer = NULL; + struct vmap *vp = vmap; + + /* 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) + { + xfree (buffer); + xasprintf (&buffer, "%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) { 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) { - printf_unfiltered ("No shared libraries loaded at this time.\n"); + printf_unfiltered ("No shared libraries loaded at this time.\n"); return; } @@ -183,38 +84,113 @@ 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", + paddr (vp->tstart),paddr (vp->tend), + paddr (vp->dstart), paddr (vp->dend), 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); + } + + /* 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); -#ifdef SOLIB_SYMBOLS_MANUAL - solib_add (args, from_tty, (struct target_ops *)0); -#endif /* SOLIB_SYMBOLS_MANUAL */ + if (loaded_any_symbols) + { + /* Getting new symbols may change our opinion about what is + frameless. */ + reinit_frame_cache (); + } + } +} + +/* LOCAL FUNCTION + + no_shared_libraries -- handle command to explicitly discard symbols + from shared libraries. + + DESCRIPTION + + Implements the command "nosharedlibrary", which discards symbols + that have been auto-loaded from shared libraries. Symbols from + shared libraries that were added by explicit request of the user + are not discarded. Also called from remote.c. */ + +void +no_shared_libraries (char *ignored, int from_tty) +{ + /* FIXME */ } void -_initialize_solib() +_initialize_xcoffsolib (void) { add_com ("sharedlibrary", class_files, sharedlibrary_command, "Load shared object library symbols for files matching REGEXP."); - add_info ("sharedlibrary", solib_info, + add_info ("sharedlibrary", solib_info, "Status of loaded shared object libraries"); + + add_show_from_set + (add_set_cmd ("auto-solib-add", class_support, var_boolean, + (char *) &auto_solib_add, + "Set autoloading of shared library symbols.\n\ +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'.", + &setlist), + &showlist); } |
