1992-02-22 09:46:16 +08:00
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/* GDB routines for manipulating objfiles.
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Copyright 1992 Free Software Foundation, Inc.
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Contributed by Cygnus Support, using pieces from other GDB modules.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This file contains support routines for creating, manipulating, and
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destroying objfile structures. */
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#include "defs.h"
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#include "bfd.h" /* Binary File Description */
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#include "symtab.h"
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#include "symfile.h"
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1992-03-21 09:56:01 +08:00
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#include "objfiles.h"
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1992-02-22 09:46:16 +08:00
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1992-03-15 09:09:14 +08:00
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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1992-02-22 09:46:16 +08:00
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#include <obstack.h>
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1992-03-15 09:09:14 +08:00
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/* Prototypes for local functions */
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1992-04-18 10:30:28 +08:00
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#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
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static int
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open_existing_mapped_file PARAMS ((char *, long, int));
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1992-03-15 09:09:14 +08:00
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static int
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1992-03-19 00:43:25 +08:00
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open_mapped_file PARAMS ((char *filename, long mtime, int mapped));
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1992-03-15 09:09:14 +08:00
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static CORE_ADDR
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map_to_address PARAMS ((void));
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1992-04-18 10:30:28 +08:00
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#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
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/* Message to be printed before the error message, when an error occurs. */
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extern char *error_pre_print;
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1992-03-21 09:56:01 +08:00
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/* Externally visible variables that are owned by this module.
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See declarations in objfile.h for more info. */
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1992-02-22 09:46:16 +08:00
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struct objfile *object_files; /* Linked list of all objfiles */
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1992-03-21 09:56:01 +08:00
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struct objfile *current_objfile; /* For symbol file being read in */
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struct objfile *symfile_objfile; /* Main symbol table loaded from */
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1992-03-15 09:09:14 +08:00
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int mapped_symbol_files; /* Try to use mapped symbol files */
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1992-02-22 09:46:16 +08:00
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1993-04-07 15:04:26 +08:00
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/* Locate all mappable sections of a BFD file.
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objfile_p_char is a char * to get it through
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bfd_map_over_sections; we cast it back to its proper type. */
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static void
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add_to_objfile_sections (abfd, asect, objfile_p_char)
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bfd *abfd;
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sec_ptr asect;
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PTR objfile_p_char;
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{
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struct objfile *objfile = (struct objfile *) objfile_p_char;
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struct obj_section section;
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flagword aflag;
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aflag = bfd_get_section_flags (abfd, asect);
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/* FIXME, we need to handle BSS segment here...it alloc's but doesn't load */
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if (!(aflag & SEC_LOAD))
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return;
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if (0 == bfd_section_size (abfd, asect))
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return;
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section.offset = 0;
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1993-04-23 04:42:37 +08:00
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section.objfile = objfile;
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1993-04-07 15:04:26 +08:00
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section.sec_ptr = asect;
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section.addr = bfd_section_vma (abfd, asect);
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section.endaddr = section.addr + bfd_section_size (abfd, asect);
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obstack_grow (&objfile->psymbol_obstack, §ion, sizeof(section));
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objfile->sections_end = (struct obj_section *) (((int) objfile->sections_end) + 1);
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}
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/* Builds a section table for OBJFILE.
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Returns 0 if OK, 1 on error. */
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static int
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build_objfile_section_table (objfile)
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struct objfile *objfile;
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{
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if (objfile->sections)
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abort();
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objfile->sections_end = 0;
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bfd_map_over_sections (objfile->obfd, add_to_objfile_sections, (char *)objfile);
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1993-04-13 23:31:29 +08:00
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objfile->sections = (struct obj_section *)
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obstack_finish (&objfile->psymbol_obstack);
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1993-04-07 15:04:26 +08:00
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objfile->sections_end = objfile->sections + (int) objfile->sections_end;
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return(0);
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}
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1992-03-19 00:43:25 +08:00
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/* Given a pointer to an initialized bfd (ABFD) and a flag that indicates
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whether or not an objfile is to be mapped (MAPPED), allocate a new objfile
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struct, fill it in as best we can, link it into the list of all known
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objfiles, and return a pointer to the new objfile struct. */
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1992-02-22 09:46:16 +08:00
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struct objfile *
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1992-03-19 00:43:25 +08:00
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allocate_objfile (abfd, mapped)
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1992-02-22 09:46:16 +08:00
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bfd *abfd;
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1992-03-15 09:09:14 +08:00
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int mapped;
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1992-02-22 09:46:16 +08:00
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{
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1992-03-15 09:09:14 +08:00
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struct objfile *objfile = NULL;
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int fd;
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void *md;
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CORE_ADDR mapto;
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mapped |= mapped_symbol_files;
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#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
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/* If we can support mapped symbol files, try to open/reopen the mapped file
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that corresponds to the file from which we wish to read symbols. If the
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objfile is to be mapped, we must malloc the structure itself using the
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mmap version, and arrange that all memory allocation for the objfile uses
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the mmap routines. If we are reusing an existing mapped file, from which
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we get our objfile pointer, we have to make sure that we update the
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pointers to the alloc/free functions in the obstack, in case these
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functions have moved within the current gdb. */
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1992-03-19 00:43:25 +08:00
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fd = open_mapped_file (bfd_get_filename (abfd), bfd_get_mtime (abfd),
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mapped);
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1992-03-15 09:09:14 +08:00
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if (fd >= 0)
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{
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1992-03-19 00:43:25 +08:00
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if (((mapto = map_to_address ()) == 0) ||
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1992-03-15 09:09:14 +08:00
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((md = mmalloc_attach (fd, (void *) mapto)) == NULL))
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{
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* breakpoint.c, buildsym.c, c-exp.y, coffread.c, command.c,
core.c, cplus-dem.c, dbxread.c, dwarfread.c, elfread.c, environ.c,
eval.c, findvar.c, gdbtypes.c, hppabsd-tdep.c, hppahpux-tdep.c,
i386-tdep.c, ieee-float.c, infcmd.c, inflow.c, infptrace.c,
infrun.c, m2-exp.y, mipsread.c, objfiles.c, parse.c, procfs.c,
putenv.c, remote-mm.c, remote-vx.c, solib.c, sparc-tdep.c,
sparc-xdep.c, stack.c, symfile.c, symtab.c, symtab.h, target.c,
tm-i386v.h, tm-sparc.h, utils.c, valarith.c, valops.c, valprint.c,
values.c, xcoffread.c:
Remove "(void)" casts from function calls where the return value
is ignored, in accordance with GNU coding standards.
1992-07-04 11:22:08 +08:00
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close (fd);
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1992-03-15 09:09:14 +08:00
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}
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else if ((objfile = (struct objfile *) mmalloc_getkey (md, 0)) != NULL)
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{
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1992-03-27 09:04:14 +08:00
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/* Update memory corruption handler function addresses. */
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init_malloc (md);
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1992-03-15 09:09:14 +08:00
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objfile -> md = md;
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1992-04-17 10:59:43 +08:00
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objfile -> mmfd = fd;
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1992-03-15 09:09:14 +08:00
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/* Update pointers to functions to *our* copies */
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obstack_chunkfun (&objfile -> psymbol_obstack, xmmalloc);
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obstack_freefun (&objfile -> psymbol_obstack, mfree);
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obstack_chunkfun (&objfile -> symbol_obstack, xmmalloc);
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obstack_freefun (&objfile -> symbol_obstack, mfree);
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obstack_chunkfun (&objfile -> type_obstack, xmmalloc);
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obstack_freefun (&objfile -> type_obstack, mfree);
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1992-05-18 07:54:32 +08:00
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/* If already in objfile list, unlink it. */
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unlink_objfile (objfile);
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/* Forget things specific to a particular gdb, may have changed. */
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objfile -> sf = NULL;
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1992-03-15 09:09:14 +08:00
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}
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else
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{
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1992-03-27 09:04:14 +08:00
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/* Set up to detect internal memory corruption. MUST be done before
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the first malloc. See comments in init_malloc() and mmcheck(). */
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init_malloc (md);
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1992-03-15 09:09:14 +08:00
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objfile = (struct objfile *) xmmalloc (md, sizeof (struct objfile));
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* breakpoint.c, buildsym.c, c-exp.y, coffread.c, command.c,
core.c, cplus-dem.c, dbxread.c, dwarfread.c, elfread.c, environ.c,
eval.c, findvar.c, gdbtypes.c, hppabsd-tdep.c, hppahpux-tdep.c,
i386-tdep.c, ieee-float.c, infcmd.c, inflow.c, infptrace.c,
infrun.c, m2-exp.y, mipsread.c, objfiles.c, parse.c, procfs.c,
putenv.c, remote-mm.c, remote-vx.c, solib.c, sparc-tdep.c,
sparc-xdep.c, stack.c, symfile.c, symtab.c, symtab.h, target.c,
tm-i386v.h, tm-sparc.h, utils.c, valarith.c, valops.c, valprint.c,
values.c, xcoffread.c:
Remove "(void)" casts from function calls where the return value
is ignored, in accordance with GNU coding standards.
1992-07-04 11:22:08 +08:00
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memset (objfile, 0, sizeof (struct objfile));
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1992-03-15 09:09:14 +08:00
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objfile -> md = md;
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1992-04-17 10:59:43 +08:00
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objfile -> mmfd = fd;
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1992-03-15 09:09:14 +08:00
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objfile -> flags |= OBJF_MAPPED;
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mmalloc_setkey (objfile -> md, 0, objfile);
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1992-08-02 04:40:59 +08:00
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obstack_specify_allocation_with_arg (&objfile -> psymbol_obstack,
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0, 0, xmmalloc, mfree,
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objfile -> md);
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obstack_specify_allocation_with_arg (&objfile -> symbol_obstack,
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0, 0, xmmalloc, mfree,
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objfile -> md);
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obstack_specify_allocation_with_arg (&objfile -> type_obstack,
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0, 0, xmmalloc, mfree,
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objfile -> md);
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1992-03-15 09:09:14 +08:00
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}
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}
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if (mapped && (objfile == NULL))
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{
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1992-03-19 00:43:25 +08:00
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warning ("symbol table for '%s' will not be mapped",
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bfd_get_filename (abfd));
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1992-03-15 09:09:14 +08:00
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}
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1992-02-22 09:46:16 +08:00
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1992-03-15 09:09:14 +08:00
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#else /* defined(NO_MMALLOC) || !defined(HAVE_MMAP) */
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1992-02-22 09:46:16 +08:00
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1992-03-15 09:09:14 +08:00
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if (mapped)
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1992-02-22 09:46:16 +08:00
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{
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1992-03-15 09:09:14 +08:00
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warning ("this version of gdb does not support mapped symbol tables.");
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/* Turn off the global flag so we don't try to do mapped symbol tables
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any more, which shuts up gdb unless the user specifically gives the
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"mapped" keyword again. */
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mapped_symbol_files = 0;
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1992-02-22 09:46:16 +08:00
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}
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1992-03-15 09:09:14 +08:00
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#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
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/* If we don't support mapped symbol files, didn't ask for the file to be
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mapped, or failed to open the mapped file for some reason, then revert
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back to an unmapped objfile. */
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if (objfile == NULL)
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1992-02-22 09:46:16 +08:00
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{
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objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
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* breakpoint.c, buildsym.c, c-exp.y, coffread.c, command.c,
core.c, cplus-dem.c, dbxread.c, dwarfread.c, elfread.c, environ.c,
eval.c, findvar.c, gdbtypes.c, hppabsd-tdep.c, hppahpux-tdep.c,
i386-tdep.c, ieee-float.c, infcmd.c, inflow.c, infptrace.c,
infrun.c, m2-exp.y, mipsread.c, objfiles.c, parse.c, procfs.c,
putenv.c, remote-mm.c, remote-vx.c, solib.c, sparc-tdep.c,
sparc-xdep.c, stack.c, symfile.c, symtab.c, symtab.h, target.c,
tm-i386v.h, tm-sparc.h, utils.c, valarith.c, valops.c, valprint.c,
values.c, xcoffread.c:
Remove "(void)" casts from function calls where the return value
is ignored, in accordance with GNU coding standards.
1992-07-04 11:22:08 +08:00
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memset (objfile, 0, sizeof (struct objfile));
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1992-03-15 09:09:14 +08:00
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objfile -> md = NULL;
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1992-08-02 04:40:59 +08:00
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obstack_specify_allocation (&objfile -> psymbol_obstack, 0, 0, xmalloc,
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free);
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obstack_specify_allocation (&objfile -> symbol_obstack, 0, 0, xmalloc,
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free);
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obstack_specify_allocation (&objfile -> type_obstack, 0, 0, xmalloc,
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free);
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1992-02-22 09:46:16 +08:00
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}
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1992-03-19 00:43:25 +08:00
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/* Update the per-objfile information that comes from the bfd, ensuring
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that any data that is reference is saved in the per-objfile data
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region. */
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1992-02-22 09:46:16 +08:00
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objfile -> obfd = abfd;
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1992-04-17 10:59:43 +08:00
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if (objfile -> name != NULL)
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{
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mfree (objfile -> md, objfile -> name);
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}
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1992-03-19 00:43:25 +08:00
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objfile -> name = mstrsave (objfile -> md, bfd_get_filename (abfd));
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1992-02-22 09:46:16 +08:00
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objfile -> mtime = bfd_get_mtime (abfd);
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1993-04-07 15:04:26 +08:00
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/* Build section table. */
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|
|
|
if (build_objfile_section_table (objfile))
|
|
|
|
|
{
|
|
|
|
|
error ("Can't find the file sections in `%s': %s",
|
|
|
|
|
objfile -> name, bfd_errmsg (bfd_error));
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
|
/* Push this file onto the head of the linked list of other such files. */
|
|
|
|
|
|
|
|
|
|
objfile -> next = object_files;
|
|
|
|
|
object_files = objfile;
|
|
|
|
|
|
|
|
|
|
return (objfile);
|
|
|
|
|
}
|
|
|
|
|
|
1992-05-18 07:54:32 +08:00
|
|
|
|
/* Unlink OBJFILE from the list of known objfiles, if it is found in the
|
|
|
|
|
list.
|
|
|
|
|
|
|
|
|
|
It is not a bug, or error, to call this function if OBJFILE is not known
|
|
|
|
|
to be in the current list. This is done in the case of mapped objfiles,
|
|
|
|
|
for example, just to ensure that the mapped objfile doesn't appear twice
|
|
|
|
|
in the list. Since the list is threaded, linking in a mapped objfile
|
|
|
|
|
twice would create a circular list.
|
|
|
|
|
|
|
|
|
|
If OBJFILE turns out to be in the list, we zap it's NEXT pointer after
|
|
|
|
|
unlinking it, just to ensure that we have completely severed any linkages
|
|
|
|
|
between the OBJFILE and the list. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
unlink_objfile (objfile)
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
{
|
|
|
|
|
struct objfile** objpp;
|
|
|
|
|
|
|
|
|
|
for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp) -> next))
|
|
|
|
|
{
|
|
|
|
|
if (*objpp == objfile)
|
|
|
|
|
{
|
|
|
|
|
*objpp = (*objpp) -> next;
|
|
|
|
|
objfile -> next = NULL;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|
|
|
|
|
/* Destroy an objfile and all the symtabs and psymtabs under it. Note
|
|
|
|
|
that as much as possible is allocated on the symbol_obstack and
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-20 05:57:15 +08:00
|
|
|
|
psymbol_obstack, so that the memory can be efficiently freed.
|
|
|
|
|
|
|
|
|
|
Things which we do NOT free because they are not in malloc'd memory
|
|
|
|
|
or not in memory specific to the objfile include:
|
|
|
|
|
|
|
|
|
|
objfile -> sf
|
|
|
|
|
|
1992-04-17 10:59:43 +08:00
|
|
|
|
FIXME: If the objfile is using reusable symbol information (via mmalloc),
|
|
|
|
|
then we need to take into account the fact that more than one process
|
|
|
|
|
may be using the symbol information at the same time (when mmalloc is
|
|
|
|
|
extended to support cooperative locking). When more than one process
|
|
|
|
|
is using the mapped symbol info, we need to be more careful about when
|
|
|
|
|
we free objects in the reusable area. */
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
free_objfile (objfile)
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
{
|
1992-04-17 10:59:43 +08:00
|
|
|
|
int mmfd;
|
|
|
|
|
|
|
|
|
|
/* First do any symbol file specific actions required when we are
|
|
|
|
|
finished with a particular symbol file. Note that if the objfile
|
|
|
|
|
is using reusable symbol information (via mmalloc) then each of
|
|
|
|
|
these routines is responsible for doing the correct thing, either
|
|
|
|
|
freeing things which are valid only during this particular gdb
|
|
|
|
|
execution, or leaving them to be reused during the next one. */
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-20 05:57:15 +08:00
|
|
|
|
if (objfile -> sf != NULL)
|
|
|
|
|
{
|
|
|
|
|
(*objfile -> sf -> sym_finish) (objfile);
|
|
|
|
|
}
|
1992-04-17 10:59:43 +08:00
|
|
|
|
|
|
|
|
|
/* We always close the bfd. */
|
|
|
|
|
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-20 05:57:15 +08:00
|
|
|
|
if (objfile -> obfd != NULL)
|
1992-02-22 09:46:16 +08:00
|
|
|
|
{
|
1992-06-13 15:24:30 +08:00
|
|
|
|
char *name = bfd_get_filename (objfile->obfd);
|
1992-02-22 09:46:16 +08:00
|
|
|
|
bfd_close (objfile -> obfd);
|
1992-06-13 15:24:30 +08:00
|
|
|
|
free (name);
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
|
1992-04-17 10:59:43 +08:00
|
|
|
|
/* Remove it from the chain of all objfiles. */
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|
1992-05-18 07:54:32 +08:00
|
|
|
|
unlink_objfile (objfile);
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|
|
|
|
|
/* Before the symbol table code was redone to make it easier to
|
|
|
|
|
selectively load and remove information particular to a specific
|
|
|
|
|
linkage unit, gdb used to do these things whenever the monolithic
|
|
|
|
|
symbol table was blown away. How much still needs to be done
|
|
|
|
|
is unknown, but we play it safe for now and keep each action until
|
|
|
|
|
it is shown to be no longer needed. */
|
|
|
|
|
|
|
|
|
|
#if defined (CLEAR_SOLIB)
|
|
|
|
|
CLEAR_SOLIB ();
|
|
|
|
|
#endif
|
|
|
|
|
clear_pc_function_cache ();
|
|
|
|
|
|
1992-04-17 10:59:43 +08:00
|
|
|
|
/* The last thing we do is free the objfile struct itself for the
|
|
|
|
|
non-reusable case, or detach from the mapped file for the reusable
|
|
|
|
|
case. Note that the mmalloc_detach or the mfree is the last thing
|
|
|
|
|
we can do with this objfile. */
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|
1992-05-07 05:16:11 +08:00
|
|
|
|
#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
|
|
|
|
|
|
1992-04-17 10:59:43 +08:00
|
|
|
|
if (objfile -> flags & OBJF_MAPPED)
|
|
|
|
|
{
|
|
|
|
|
/* Remember the fd so we can close it. We can't close it before
|
|
|
|
|
doing the detach, and after the detach the objfile is gone. */
|
|
|
|
|
mmfd = objfile -> mmfd;
|
|
|
|
|
mmalloc_detach (objfile -> md);
|
1992-05-07 05:16:11 +08:00
|
|
|
|
objfile = NULL;
|
* breakpoint.c, buildsym.c, c-exp.y, coffread.c, command.c,
core.c, cplus-dem.c, dbxread.c, dwarfread.c, elfread.c, environ.c,
eval.c, findvar.c, gdbtypes.c, hppabsd-tdep.c, hppahpux-tdep.c,
i386-tdep.c, ieee-float.c, infcmd.c, inflow.c, infptrace.c,
infrun.c, m2-exp.y, mipsread.c, objfiles.c, parse.c, procfs.c,
putenv.c, remote-mm.c, remote-vx.c, solib.c, sparc-tdep.c,
sparc-xdep.c, stack.c, symfile.c, symtab.c, symtab.h, target.c,
tm-i386v.h, tm-sparc.h, utils.c, valarith.c, valops.c, valprint.c,
values.c, xcoffread.c:
Remove "(void)" casts from function calls where the return value
is ignored, in accordance with GNU coding standards.
1992-07-04 11:22:08 +08:00
|
|
|
|
close (mmfd);
|
1992-04-17 10:59:43 +08:00
|
|
|
|
}
|
1992-05-07 05:16:11 +08:00
|
|
|
|
|
|
|
|
|
#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
|
|
|
|
|
|
|
|
|
|
/* If we still have an objfile, then either we don't support reusable
|
|
|
|
|
objfiles or this one was not reusable. So free it normally. */
|
|
|
|
|
|
|
|
|
|
if (objfile != NULL)
|
1992-04-17 10:59:43 +08:00
|
|
|
|
{
|
|
|
|
|
if (objfile -> name != NULL)
|
|
|
|
|
{
|
|
|
|
|
mfree (objfile -> md, objfile -> name);
|
|
|
|
|
}
|
1992-06-13 15:24:30 +08:00
|
|
|
|
if (objfile->global_psymbols.list)
|
|
|
|
|
mfree (objfile->md, objfile->global_psymbols.list);
|
|
|
|
|
if (objfile->static_psymbols.list)
|
|
|
|
|
mfree (objfile->md, objfile->static_psymbols.list);
|
1992-04-17 10:59:43 +08:00
|
|
|
|
/* Free the obstacks for non-reusable objfiles */
|
|
|
|
|
obstack_free (&objfile -> psymbol_obstack, 0);
|
|
|
|
|
obstack_free (&objfile -> symbol_obstack, 0);
|
|
|
|
|
obstack_free (&objfile -> type_obstack, 0);
|
|
|
|
|
mfree (objfile -> md, objfile);
|
1992-05-07 05:16:11 +08:00
|
|
|
|
objfile = NULL;
|
1992-04-17 10:59:43 +08:00
|
|
|
|
}
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
|
1992-02-28 00:28:59 +08:00
|
|
|
|
|
1993-07-28 03:40:57 +08:00
|
|
|
|
/* Free all the object files at once and clean up their users. */
|
1992-02-28 00:28:59 +08:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
free_all_objfiles ()
|
|
|
|
|
{
|
|
|
|
|
struct objfile *objfile, *temp;
|
|
|
|
|
|
|
|
|
|
ALL_OBJFILES_SAFE (objfile, temp)
|
|
|
|
|
{
|
|
|
|
|
free_objfile (objfile);
|
|
|
|
|
}
|
1993-07-28 03:40:57 +08:00
|
|
|
|
clear_symtab_users ();
|
1992-02-28 00:28:59 +08:00
|
|
|
|
}
|
1993-03-26 22:59:43 +08:00
|
|
|
|
|
|
|
|
|
/* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS
|
|
|
|
|
entries in new_offsets. */
|
|
|
|
|
void
|
|
|
|
|
objfile_relocate (objfile, new_offsets)
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
struct section_offsets *new_offsets;
|
|
|
|
|
{
|
|
|
|
|
struct section_offsets *delta = (struct section_offsets *) alloca
|
|
|
|
|
(sizeof (struct section_offsets)
|
|
|
|
|
+ objfile->num_sections * sizeof (delta->offsets));
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
int something_changed = 0;
|
|
|
|
|
for (i = 0; i < objfile->num_sections; ++i)
|
|
|
|
|
{
|
|
|
|
|
ANOFFSET (delta, i) =
|
|
|
|
|
ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i);
|
|
|
|
|
if (ANOFFSET (delta, i) != 0)
|
|
|
|
|
something_changed = 1;
|
|
|
|
|
}
|
|
|
|
|
if (!something_changed)
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* OK, get all the symtabs. */
|
|
|
|
|
{
|
|
|
|
|
struct symtab *s;
|
|
|
|
|
|
|
|
|
|
for (s = objfile->symtabs; s; s = s->next)
|
|
|
|
|
{
|
|
|
|
|
struct linetable *l;
|
|
|
|
|
struct blockvector *bv;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/* First the line table. */
|
|
|
|
|
l = LINETABLE (s);
|
|
|
|
|
if (l)
|
|
|
|
|
{
|
|
|
|
|
for (i = 0; i < l->nitems; ++i)
|
|
|
|
|
l->item[i].pc += ANOFFSET (delta, s->block_line_section);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Don't relocate a shared blockvector more than once. */
|
|
|
|
|
if (!s->primary)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
bv = BLOCKVECTOR (s);
|
|
|
|
|
for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
|
|
|
|
|
{
|
|
|
|
|
struct block *b;
|
|
|
|
|
int j;
|
|
|
|
|
|
|
|
|
|
b = BLOCKVECTOR_BLOCK (bv, i);
|
|
|
|
|
BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
|
|
|
|
|
BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
|
|
|
|
|
|
|
|
|
|
for (j = 0; j < BLOCK_NSYMS (b); ++j)
|
|
|
|
|
{
|
|
|
|
|
struct symbol *sym = BLOCK_SYM (b, j);
|
|
|
|
|
/* The RS6000 code from which this was taken skipped
|
|
|
|
|
any symbols in STRUCT_NAMESPACE or UNDEF_NAMESPACE.
|
|
|
|
|
But I'm leaving out that test, on the theory that
|
|
|
|
|
they can't possibly pass the tests below. */
|
|
|
|
|
if ((SYMBOL_CLASS (sym) == LOC_LABEL
|
|
|
|
|
|| SYMBOL_CLASS (sym) == LOC_STATIC)
|
|
|
|
|
&& SYMBOL_SECTION (sym) >= 0)
|
|
|
|
|
{
|
|
|
|
|
SYMBOL_VALUE_ADDRESS (sym) +=
|
|
|
|
|
ANOFFSET (delta, SYMBOL_SECTION (sym));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *msym;
|
|
|
|
|
ALL_OBJFILE_MSYMBOLS (objfile, msym)
|
|
|
|
|
SYMBOL_VALUE_ADDRESS (msym) += ANOFFSET (delta, SYMBOL_SECTION (msym));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
for (i = 0; i < objfile->num_sections; ++i)
|
|
|
|
|
ANOFFSET (objfile->section_offsets, i) = ANOFFSET (new_offsets, i);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
|
/* Many places in gdb want to test just to see if we have any partial
|
|
|
|
|
symbols available. This function returns zero if none are currently
|
|
|
|
|
available, nonzero otherwise. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
have_partial_symbols ()
|
|
|
|
|
{
|
|
|
|
|
struct objfile *ofp;
|
|
|
|
|
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
ALL_OBJFILES (ofp)
|
1992-02-22 09:46:16 +08:00
|
|
|
|
{
|
|
|
|
|
if (ofp -> psymtabs != NULL)
|
|
|
|
|
{
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
return 1;
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
return 0;
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Many places in gdb want to test just to see if we have any full
|
|
|
|
|
symbols available. This function returns zero if none are currently
|
|
|
|
|
available, nonzero otherwise. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
have_full_symbols ()
|
|
|
|
|
{
|
|
|
|
|
struct objfile *ofp;
|
|
|
|
|
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
ALL_OBJFILES (ofp)
|
1992-02-22 09:46:16 +08:00
|
|
|
|
{
|
|
|
|
|
if (ofp -> symtabs != NULL)
|
|
|
|
|
{
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
return 1;
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
return 0;
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Many places in gdb want to test just to see if we have any minimal
|
|
|
|
|
symbols available. This function returns zero if none are currently
|
|
|
|
|
available, nonzero otherwise. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
have_minimal_symbols ()
|
|
|
|
|
{
|
|
|
|
|
struct objfile *ofp;
|
|
|
|
|
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
ALL_OBJFILES (ofp)
|
1992-02-22 09:46:16 +08:00
|
|
|
|
{
|
|
|
|
|
if (ofp -> msymbols != NULL)
|
|
|
|
|
{
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
return 1;
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
Create and use macros for iterating on symtabs, psymtabs, msymbols.
* minsyms.c (iterate_over_msymbols): Remove; clunky and slow.
* symfile.h, symtab.h (iterate_over_msymbols): Remove prototype
* coffread.c (coff_symfile_read): iterate_over_symtabs => ALL_SYMTABS.
(patch_opaque_types): Avoid dummy args and result.
* objfiles.c (have_partial_symbols, have_full_symbols,
have_minimal_symbols): explicit iteration => ALL_OBJFILES; simplify.
(iterate_over_objfiles, iterate_over_symtabs,
iterate_over_psymtabs): Remove, clunky and slow.
* objfiles.h: Replace iterate_over_* prototypes with ALL_SYMTABS,
ALL_PSYMTABS, and ALL_MSYMBOLS macros.
* symmisc.c (dump_symtab, dump_psymtab, dump_msymbols,
dump_objfile): Remove dummy args and results. Move filename
comparisons to callers.
(printsyms_command, printpsyms_command, printmsyms_command,
printobjfiles_command): iterate_over_* => ALL_*. Compare filenames.
* symtab.c (lookup_symtab_1, lookup_symtab, lookup_partial_symtab,
lookup_symbol, find_main_psymtab, find_pc_symtab, sources_info,
list_symbols, make_symbol_completion_list): Replace explicit
iteration with ALL_SYMTABS, ALL_PSYMTABS, or ALL_MSYMBOLS.
Eliminate Dijkstra flag crap, break out of loops with gotos.
(lookup_symtab_1): Protect '/' tests from short filenames.
(cplus_mangled_symbol): Move inline into lookup_symbol.
* xcoffexec.c (relocate_objfile_msymbols): Remove poor hack.
(relocate_minimal_symbol): Move inline to vmap_symtab.
(vmap_symtab): Replace iteration with ALL_OBJFILES,
iterate_over_msymbols with ALL_MSYMBOLS.
Misc cleanup prior to release.
* dwarfread.c (dwarf_build_psymtabs): Remove mainline test.
* mipsread.c (compare_symtabs, compare_psymtabs): Remove, unused.
* mipsread.c: Add prototypes for all static functions.
* symmisc.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove, unused.
* xcoffread.c (dump_symtab_lines, dump_symtabs, dump_last_symtab,
dump_blockvector, dump_block, dump_addrchass, dump_namespace,
dump_symbol, dump_type, dump_linetable, dump_strtbl): Remove 2nd
unused copy!
* buildsym.c (define_symbol): Handle global register variables
(from Pierre Willard). Complain if register numbers are too large.
1992-03-30 07:17:36 +08:00
|
|
|
|
return 0;
|
1992-02-22 09:46:16 +08:00
|
|
|
|
}
|
|
|
|
|
|
1992-04-18 10:30:28 +08:00
|
|
|
|
#if !defined(NO_MMALLOC) && defined(HAVE_MMAP)
|
|
|
|
|
|
|
|
|
|
/* Given the name of a mapped symbol file in SYMSFILENAME, and the timestamp
|
|
|
|
|
of the corresponding symbol file in MTIME, try to open an existing file
|
|
|
|
|
with the name SYMSFILENAME and verify it is more recent than the base
|
|
|
|
|
file by checking it's timestamp against MTIME.
|
|
|
|
|
|
|
|
|
|
If SYMSFILENAME does not exist (or can't be stat'd), simply returns -1.
|
|
|
|
|
|
|
|
|
|
If SYMSFILENAME does exist, but is out of date, we check to see if the
|
|
|
|
|
user has specified creation of a mapped file. If so, we don't issue
|
|
|
|
|
any warning message because we will be creating a new mapped file anyway,
|
|
|
|
|
overwriting the old one. If not, then we issue a warning message so that
|
|
|
|
|
the user will know why we aren't using this existing mapped symbol file.
|
|
|
|
|
In either case, we return -1.
|
|
|
|
|
|
|
|
|
|
If SYMSFILENAME does exist and is not out of date, but can't be opened for
|
|
|
|
|
some reason, then prints an appropriate system error message and returns -1.
|
|
|
|
|
|
|
|
|
|
Otherwise, returns the open file descriptor. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
open_existing_mapped_file (symsfilename, mtime, mapped)
|
|
|
|
|
char *symsfilename;
|
|
|
|
|
long mtime;
|
|
|
|
|
int mapped;
|
|
|
|
|
{
|
|
|
|
|
int fd = -1;
|
|
|
|
|
struct stat sbuf;
|
|
|
|
|
|
|
|
|
|
if (stat (symsfilename, &sbuf) == 0)
|
|
|
|
|
{
|
|
|
|
|
if (sbuf.st_mtime < mtime)
|
|
|
|
|
{
|
|
|
|
|
if (!mapped)
|
|
|
|
|
{
|
1992-08-11 13:29:41 +08:00
|
|
|
|
warning ("mapped symbol file `%s' is out of date, ignored it",
|
|
|
|
|
symsfilename);
|
1992-04-18 10:30:28 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if ((fd = open (symsfilename, O_RDWR)) < 0)
|
|
|
|
|
{
|
|
|
|
|
if (error_pre_print)
|
|
|
|
|
{
|
|
|
|
|
printf (error_pre_print);
|
|
|
|
|
}
|
|
|
|
|
print_sys_errmsg (symsfilename, errno);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return (fd);
|
|
|
|
|
}
|
|
|
|
|
|
1992-03-19 00:43:25 +08:00
|
|
|
|
/* Look for a mapped symbol file that corresponds to FILENAME and is more
|
1992-03-15 09:09:14 +08:00
|
|
|
|
recent than MTIME. If MAPPED is nonzero, the user has asked that gdb
|
1992-03-19 00:43:25 +08:00
|
|
|
|
use a mapped symbol file for this file, so create a new one if one does
|
|
|
|
|
not currently exist.
|
1992-03-15 09:09:14 +08:00
|
|
|
|
|
|
|
|
|
If found, then return an open file descriptor for the file, otherwise
|
|
|
|
|
return -1.
|
|
|
|
|
|
|
|
|
|
This routine is responsible for implementing the policy that generates
|
|
|
|
|
the name of the mapped symbol file from the name of a file containing
|
1992-04-18 10:30:28 +08:00
|
|
|
|
symbols that gdb would like to read. Currently this policy is to append
|
|
|
|
|
".syms" to the name of the file.
|
|
|
|
|
|
|
|
|
|
This routine is also responsible for implementing the policy that
|
|
|
|
|
determines where the mapped symbol file is found (the search path).
|
|
|
|
|
This policy is that when reading an existing mapped file, a file of
|
|
|
|
|
the correct name in the current directory takes precedence over a
|
|
|
|
|
file of the correct name in the same directory as the symbol file.
|
|
|
|
|
When creating a new mapped file, it is always created in the current
|
|
|
|
|
directory. This helps to minimize the chances of a user unknowingly
|
|
|
|
|
creating big mapped files in places like /bin and /usr/local/bin, and
|
|
|
|
|
allows a local copy to override a manually installed global copy (in
|
|
|
|
|
/bin for example). */
|
1992-03-15 09:09:14 +08:00
|
|
|
|
|
|
|
|
|
static int
|
1992-03-19 00:43:25 +08:00
|
|
|
|
open_mapped_file (filename, mtime, mapped)
|
|
|
|
|
char *filename;
|
1992-03-15 09:09:14 +08:00
|
|
|
|
long mtime;
|
|
|
|
|
int mapped;
|
|
|
|
|
{
|
|
|
|
|
int fd;
|
1992-04-18 10:30:28 +08:00
|
|
|
|
char *symsfilename;
|
1992-03-15 09:09:14 +08:00
|
|
|
|
|
1992-04-18 10:30:28 +08:00
|
|
|
|
/* First try to open an existing file in the current directory, and
|
|
|
|
|
then try the directory where the symbol file is located. */
|
1992-03-15 09:09:14 +08:00
|
|
|
|
|
1992-04-18 10:30:28 +08:00
|
|
|
|
symsfilename = concat ("./", basename (filename), ".syms", (char *) NULL);
|
|
|
|
|
if ((fd = open_existing_mapped_file (symsfilename, mtime, mapped)) < 0)
|
1992-03-15 09:09:14 +08:00
|
|
|
|
{
|
1992-04-18 10:30:28 +08:00
|
|
|
|
free (symsfilename);
|
|
|
|
|
symsfilename = concat (filename, ".syms", (char *) NULL);
|
|
|
|
|
fd = open_existing_mapped_file (symsfilename, mtime, mapped);
|
1992-03-15 09:09:14 +08:00
|
|
|
|
}
|
|
|
|
|
|
1992-04-18 10:30:28 +08:00
|
|
|
|
/* If we don't have an open file by now, then either the file does not
|
|
|
|
|
already exist, or the base file has changed since it was created. In
|
|
|
|
|
either case, if the user has specified use of a mapped file, then
|
|
|
|
|
create a new mapped file, truncating any existing one. If we can't
|
|
|
|
|
create one, print a system error message saying why we can't.
|
1992-03-15 09:09:14 +08:00
|
|
|
|
|
|
|
|
|
By default the file is rw for everyone, with the user's umask taking
|
|
|
|
|
care of turning off the permissions the user wants off. */
|
|
|
|
|
|
1992-04-18 10:30:28 +08:00
|
|
|
|
if ((fd < 0) && mapped)
|
1992-03-15 09:09:14 +08:00
|
|
|
|
{
|
1992-04-18 10:30:28 +08:00
|
|
|
|
free (symsfilename);
|
|
|
|
|
symsfilename = concat ("./", basename (filename), ".syms",
|
|
|
|
|
(char *) NULL);
|
|
|
|
|
if ((fd = open (symsfilename, O_RDWR | O_CREAT | O_TRUNC, 0666)) < 0)
|
|
|
|
|
{
|
|
|
|
|
if (error_pre_print)
|
|
|
|
|
{
|
|
|
|
|
printf (error_pre_print);
|
|
|
|
|
}
|
|
|
|
|
print_sys_errmsg (symsfilename, errno);
|
|
|
|
|
}
|
1992-03-15 09:09:14 +08:00
|
|
|
|
}
|
|
|
|
|
|
1992-04-18 10:30:28 +08:00
|
|
|
|
free (symsfilename);
|
1992-03-15 09:09:14 +08:00
|
|
|
|
return (fd);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the base address at which we would like the next objfile's
|
|
|
|
|
mapped data to start.
|
|
|
|
|
|
|
|
|
|
For now, we use the kludge that the configuration specifies a base
|
|
|
|
|
address to which it is safe to map the first mmalloc heap, and an
|
|
|
|
|
increment to add to this address for each successive heap. There are
|
|
|
|
|
a lot of issues to deal with here to make this work reasonably, including:
|
|
|
|
|
|
|
|
|
|
Avoid memory collisions with existing mapped address spaces
|
|
|
|
|
|
|
|
|
|
Reclaim address spaces when their mmalloc heaps are unmapped
|
|
|
|
|
|
|
|
|
|
When mmalloc heaps are shared between processes they have to be
|
|
|
|
|
mapped at the same addresses in each
|
|
|
|
|
|
|
|
|
|
Once created, a mmalloc heap that is to be mapped back in must be
|
|
|
|
|
mapped at the original address. I.E. each objfile will expect to
|
|
|
|
|
be remapped at it's original address. This becomes a problem if
|
|
|
|
|
the desired address is already in use.
|
|
|
|
|
|
|
|
|
|
etc, etc, etc.
|
|
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
map_to_address ()
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
#if defined(MMAP_BASE_ADDRESS) && defined (MMAP_INCREMENT)
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR next = MMAP_BASE_ADDRESS;
|
|
|
|
|
CORE_ADDR mapto = next;
|
|
|
|
|
|
|
|
|
|
next += MMAP_INCREMENT;
|
|
|
|
|
return (mapto);
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
}
|
1992-04-18 10:30:28 +08:00
|
|
|
|
|
|
|
|
|
#endif /* !defined(NO_MMALLOC) && defined(HAVE_MMAP) */
|
1993-04-07 15:04:26 +08:00
|
|
|
|
|
|
|
|
|
/* Returns a section whose range includes PC or NULL if none found. */
|
|
|
|
|
|
1993-04-23 04:42:37 +08:00
|
|
|
|
struct obj_section *
|
1993-04-07 15:04:26 +08:00
|
|
|
|
find_pc_section(pc)
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
{
|
|
|
|
|
struct obj_section *s;
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
|
|
|
|
|
ALL_OBJFILES (objfile)
|
|
|
|
|
for (s = objfile->sections; s < objfile->sections_end; ++s)
|
|
|
|
|
if (s->addr <= pc
|
|
|
|
|
&& pc < s->endaddr)
|
1993-04-23 04:42:37 +08:00
|
|
|
|
return(s);
|
1993-04-07 15:04:26 +08:00
|
|
|
|
|
|
|
|
|
return(NULL);
|
|
|
|
|
}
|