X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fnlmread.c;h=4e9c87d3ff0de7e1b4e4163cefe16c4028a2e284;hb=7c46b9fb41fd107882032ecc34897a8e86e8264a;hp=3895053282f753eaee3a562b1de4e5ed3f51123b;hpb=a66e8382def5fdeb8e291748ce6f1f639a0a63f2;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/nlmread.c b/gdb/nlmread.c index 3895053282..4e9c87d3ff 100644 --- a/gdb/nlmread.c +++ b/gdb/nlmread.c @@ -1,55 +1,45 @@ /* Read NLM (NetWare Loadable Module) format executable files for GDB. - Copyright 1993, 1994 Free Software Foundation, Inc. + Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000 + Free Software Foundation, Inc. Written by Fred Fish at Cygnus Support (fnf@cygnus.com). -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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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 #include "bfd.h" #include "symtab.h" #include "symfile.h" #include "objfiles.h" -#include "gdb-stabs.h" #include "buildsym.h" #include "stabsread.h" +#include "block.h" -static void -nlm_new_init PARAMS ((struct objfile *)); - -static void -nlm_symfile_init PARAMS ((struct objfile *)); - -static void -nlm_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int)); +extern void _initialize_nlmread (void); -static void -nlm_symfile_finish PARAMS ((struct objfile *)); +static void nlm_new_init (struct objfile *); -static void -nlm_symtab_read PARAMS ((bfd *, CORE_ADDR, struct objfile *)); +static void nlm_symfile_init (struct objfile *); -static struct section_offsets * -nlm_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR)); +static void nlm_symfile_read (struct objfile *, int); -static void -record_minimal_symbol PARAMS ((char *, CORE_ADDR, enum minimal_symbol_type, - struct objfile *)); +static void nlm_symfile_finish (struct objfile *); +static void nlm_symtab_read (bfd *, CORE_ADDR, struct objfile *); /* Initialize anything that needs initializing when a completely new symbol file is specified (not just adding some symbols from another file, e.g. a @@ -59,8 +49,7 @@ record_minimal_symbol PARAMS ((char *, CORE_ADDR, enum minimal_symbol_type, file at some point in the near future. */ static void -nlm_new_init (ignore) - struct objfile *ignore; +nlm_new_init (struct objfile *ignore) { stabsread_new_init (); buildsym_new_init (); @@ -77,47 +66,31 @@ nlm_new_init (ignore) just a stub. */ static void -nlm_symfile_init (ignore) - struct objfile *ignore; -{ -} - -static void -record_minimal_symbol (name, address, ms_type, objfile) - char *name; - CORE_ADDR address; - enum minimal_symbol_type ms_type; - struct objfile *objfile; +nlm_symfile_init (struct objfile *ignore) { - name = obsavestring (name, strlen (name), &objfile -> symbol_obstack); - prim_record_minimal_symbol (name, address, ms_type, objfile); } - /* -LOCAL FUNCTION + LOCAL FUNCTION - nlm_symtab_read -- read the symbol table of an NLM file + nlm_symtab_read -- read the symbol table of an NLM file -SYNOPSIS + SYNOPSIS - void nlm_symtab_read (bfd *abfd, CORE_ADDR addr, - struct objfile *objfile) + void nlm_symtab_read (bfd *abfd, CORE_ADDR addr, + struct objfile *objfile) -DESCRIPTION + DESCRIPTION - Given an open bfd, a base address to relocate symbols to, and a - flag that specifies whether or not this bfd is for an executable - or not (may be shared library for example), add all the global - function and data symbols to the minimal symbol table. -*/ + Given an open bfd, a base address to relocate symbols to, and a + flag that specifies whether or not this bfd is for an executable + or not (may be shared library for example), add all the global + function and data symbols to the minimal symbol table. + */ static void -nlm_symtab_read (abfd, addr, objfile) - bfd *abfd; - CORE_ADDR addr; - struct objfile *objfile; +nlm_symtab_read (bfd *abfd, CORE_ADDR addr, struct objfile *objfile) { long storage_needed; asymbol *sym; @@ -127,7 +100,7 @@ nlm_symtab_read (abfd, addr, objfile) struct cleanup *back_to; CORE_ADDR symaddr; enum minimal_symbol_type ms_type; - + storage_needed = bfd_get_symtab_upper_bound (abfd); if (storage_needed < 0) error ("Can't read symbols from %s: %s", bfd_get_filename (abfd), @@ -135,42 +108,35 @@ nlm_symtab_read (abfd, addr, objfile) if (storage_needed > 0) { symbol_table = (asymbol **) xmalloc (storage_needed); - back_to = make_cleanup (free, symbol_table); - number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table); + back_to = make_cleanup (xfree, symbol_table); + number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table); if (number_of_symbols < 0) error ("Can't read symbols from %s: %s", bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); - + for (i = 0; i < number_of_symbols; i++) { sym = symbol_table[i]; - if (/*sym -> flags & BSF_GLOBAL*/ 1) + if ( /*sym -> flags & BSF_GLOBAL */ 1) { /* Bfd symbols are section relative. */ - symaddr = sym -> value + sym -> section -> vma; + symaddr = sym->value + sym->section->vma; /* Relocate all non-absolute symbols by base address. */ - if (sym -> section != &bfd_abs_section) - { - symaddr += addr; - } + if (sym->section != &bfd_abs_section) + symaddr += addr; /* For non-absolute symbols, use the type of the section - they are relative to, to intuit text/data. Bfd provides - no way of figuring this out for absolute symbols. */ - if (sym -> section -> flags & SEC_CODE) - { - ms_type = mst_text; - } - else if (sym -> section -> flags & SEC_DATA) - { - ms_type = mst_data; - } + they are relative to, to intuit text/data. BFD provides + no way of figuring this out for absolute symbols. */ + if (sym->section->flags & SEC_CODE) + ms_type = mst_text; + else if (sym->section->flags & SEC_DATA) + ms_type = mst_data; else - { - ms_type = mst_unknown; - } - record_minimal_symbol ((char *) sym -> name, symaddr, ms_type, - objfile); + ms_type = mst_unknown; + + prim_record_minimal_symbol (sym->name, symaddr, ms_type, + objfile); } } do_cleanups (back_to); @@ -206,46 +172,45 @@ nlm_symtab_read (abfd, addr, objfile) is not currently used. */ static void -nlm_symfile_read (objfile, section_offsets, mainline) - struct objfile *objfile; - struct section_offsets *section_offsets; - int mainline; +nlm_symfile_read (struct objfile *objfile, int mainline) { - bfd *abfd = objfile -> obfd; + bfd *abfd = objfile->obfd; struct cleanup *back_to; CORE_ADDR offset; + struct symbol *mainsym; init_minimal_symbol_collection (); - back_to = make_cleanup (discard_minimal_symbols, 0); + back_to = make_cleanup_discard_minimal_symbols (); /* FIXME, should take a section_offsets param, not just an offset. */ - offset = ANOFFSET (section_offsets, 0); + offset = ANOFFSET (objfile->section_offsets, 0); /* Process the NLM export records, which become the bfd's canonical symbol table. */ nlm_symtab_read (abfd, offset, objfile); - stabsect_build_psymtabs (objfile, section_offsets, mainline, ".stab", - ".stabstr"); - - /* FIXME: We could locate and read the optional native debugging format - here and add the symbols to the minimal symbol table. */ - - if (!have_partial_symbols ()) - { - wrap_here (""); - printf_filtered ("(no debugging symbols found)..."); - wrap_here (""); - } - /* Install any minimal symbols that have been collected as the current minimal symbols for this objfile. */ install_minimal_symbols (objfile); - do_cleanups (back_to); + + stabsect_build_psymtabs (objfile, mainline, ".stab", + ".stabstr", ".text"); + + mainsym = lookup_symbol (main_name (), NULL, VAR_DOMAIN, NULL, NULL); + + if (mainsym + && SYMBOL_CLASS (mainsym) == LOC_BLOCK) + { + objfile->ei.main_func_lowpc = BLOCK_START (SYMBOL_BLOCK_VALUE (mainsym)); + objfile->ei.main_func_highpc = BLOCK_END (SYMBOL_BLOCK_VALUE (mainsym)); + } + + /* FIXME: We could locate and read the optional native debugging format + here and add the symbols to the minimal symbol table. */ } @@ -255,58 +220,29 @@ nlm_symfile_read (objfile, section_offsets, mainline) objfile struct from the global list of known objfiles. */ static void -nlm_symfile_finish (objfile) - struct objfile *objfile; -{ - if (objfile -> sym_private != NULL) - { - mfree (objfile -> md, objfile -> sym_private); - } -} - -/* NLM specific parsing routine for section offsets. - FIXME: This may or may not be necessary. All the symbol readers seem - to have similar code. See if it can be generalized and moved elsewhere. */ - -static -struct section_offsets * -nlm_symfile_offsets (objfile, addr) - struct objfile *objfile; - CORE_ADDR addr; +nlm_symfile_finish (struct objfile *objfile) { - struct section_offsets *section_offsets; - int i; - - objfile->num_sections = SECT_OFF_MAX; - section_offsets = (struct section_offsets *) - obstack_alloc (&objfile -> psymbol_obstack, - sizeof (struct section_offsets) + - sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1)); - - for (i = 0; i < SECT_OFF_MAX; i++) + if (objfile->sym_private != NULL) { - ANOFFSET (section_offsets, i) = addr; + xmfree (objfile->md, objfile->sym_private); } - - return (section_offsets); } - /* Register that we are able to handle NLM file format. */ static struct sym_fns nlm_sym_fns = { bfd_target_nlm_flavour, - nlm_new_init, /* sym_new_init: init anything gbl to entire symtab */ - nlm_symfile_init, /* sym_init: read initial info, setup for sym_read() */ - nlm_symfile_read, /* sym_read: read a symbol file into symtab */ - nlm_symfile_finish, /* sym_finish: finished with file, cleanup */ - nlm_symfile_offsets, /* sym_offsets: Translate ext. to int. relocation */ - NULL /* next: pointer to next struct sym_fns */ + nlm_new_init, /* sym_new_init: init anything gbl to entire symtab */ + nlm_symfile_init, /* sym_init: read initial info, setup for sym_read() */ + nlm_symfile_read, /* sym_read: read a symbol file into symtab */ + nlm_symfile_finish, /* sym_finish: finished with file, cleanup */ + default_symfile_offsets, /* sym_offsets: Translate ext. to int. relocation */ + NULL /* next: pointer to next struct sym_fns */ }; void -_initialize_nlmread () +_initialize_nlmread (void) { add_symtab_fns (&nlm_sym_fns); }