* somread.c: Renamed from paread.c. Changed function names and

	comments to reflect that this file deals with SOM (an object file
	format), rather than the PA (a cpu).
	(Makefile.in): Chaned appropriately.
	(config/pa/hppabsd.mh, config/pa/hppahpux.mh): Likewise.
	* dbxread.c (somstab_build_psymtabs): Renamed from
	pastab_build_psymtabs.

1 files changed, 0 insertions, 547 deletions

diff --git a/gdb/paread.c b/gdb/paread.c
index 2acdccd..e69de29 100644
--- a/gdb/paread.c
+++ b/gdb/paread.c
@@ -1,547 +0,0 @@
-/* Read HP PA/Risc object files for GDB.
-   Copyright 1991, 1992 Free Software Foundation, Inc.
-   Written by Fred Fish at Cygnus Support.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-#include "defs.h"
-#include "bfd.h"
-#include <time.h> /* For time_t in libbfd.h.  */
-#include <sys/types.h> /* For time_t, if not in time.h.  */
-#include "libbfd.h"
-#include "som.h"
-#include "libhppa.h"
-#include <syms.h>
-#include "symtab.h"
-#include "symfile.h"
-#include "objfiles.h"
-#include "buildsym.h"
-#include "stabsread.h"
-#include "gdb-stabs.h"
-#include "complaints.h"
-#include <string.h>
-#include "demangle.h"
-#include <sys/file.h>
-
-/* Size of n_value and n_strx fields in a stab symbol.  */
-#define BYTES_IN_WORD 4
-
-#include "aout/aout64.h"
-
-/* Various things we might complain about... */
-
-static void
-pa_symfile_init PARAMS ((struct objfile *));
-
-static void
-pa_new_init PARAMS ((struct objfile *));
-
-static void
-pa_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int));
-
-static void
-pa_symfile_finish PARAMS ((struct objfile *));
-
-static void
-pa_symtab_read PARAMS ((bfd *,  CORE_ADDR, struct objfile *));
-
-static void
-free_painfo PARAMS ((PTR));
-
-static struct section_offsets *
-pa_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
-
-static void
-record_minimal_symbol PARAMS ((char *, CORE_ADDR,
-			       enum minimal_symbol_type,
-			       struct objfile *));
-
-static void
-record_minimal_symbol (name, address, ms_type, objfile)
-     char *name;
-     CORE_ADDR address;
-     enum minimal_symbol_type ms_type;
-     struct objfile *objfile;
-{
-  name = obsavestring (name, strlen (name), &objfile -> symbol_obstack);
-  prim_record_minimal_symbol (name, address, ms_type, objfile);
-}
-
-/*
-
-LOCAL FUNCTION
-
-	pa_symtab_read -- read the symbol table of a PA file
-
-SYNOPSIS
-
-	void pa_symtab_read (bfd *abfd, CORE_ADDR addr,
-			      struct objfile *objfile)
-
-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.
-*/
-
-static void
-pa_symtab_read (abfd, addr, objfile)
-     bfd *abfd;
-     CORE_ADDR addr;
-     struct objfile *objfile;
-{
-  unsigned int number_of_symbols;
-  unsigned int i;
-  int val, dynamic;
-  char *stringtab;
-  asection *shlib_info;
-  struct symbol_dictionary_record *buf, *bufp, *endbufp;
-  char *symname;
-  CONST int symsize = sizeof (struct symbol_dictionary_record);
-
-  number_of_symbols = bfd_get_symcount (abfd);
-
-  buf = alloca (symsize * number_of_symbols);
-  bfd_seek (abfd, obj_som_sym_filepos (abfd), L_SET);
-  val = bfd_read (buf, symsize * number_of_symbols, 1, abfd);
-  if (val != symsize * number_of_symbols)
-    error ("Couldn't read symbol dictionary!");
-
-  stringtab = alloca (obj_som_stringtab_size (abfd));
-  bfd_seek (abfd, obj_som_str_filepos (abfd), L_SET);
-  val = bfd_read (stringtab, obj_som_stringtab_size (abfd), 1, abfd);
-  if (val != obj_som_stringtab_size (abfd))
-    error ("Can't read in HP string table.");
-
-  /* We need to determine if objfile is a dynamic executable (so we
-     can do the right thing for ST_ENTRY vs ST_CODE symbols).
-
-     There's nothing in the header which easily allows us to do
-     this.  The only reliable way I know of is to check for the
-     existance of a $SHLIB_INFO$ section with a non-zero size.  */
-  shlib_info = bfd_get_section_by_name (objfile->obfd, "$SHLIB_INFO$");
-  if (shlib_info)
-    dynamic = (bfd_section_size (objfile->obfd, shlib_info) != 0);
-  else
-    dynamic = 0;
-
-  endbufp = buf + number_of_symbols;
-  for (bufp = buf; bufp < endbufp; ++bufp)
-    {
-      enum minimal_symbol_type ms_type;
-
-      QUIT;
-
-      switch (bufp->symbol_scope)
-	{
-	case SS_UNIVERSAL:
-	case SS_EXTERNAL:
-	  switch (bufp->symbol_type)
-	    {
-	    case ST_SYM_EXT:
-	    case ST_ARG_EXT:
-	      continue;
-
-	    case ST_CODE:
-	    case ST_PRI_PROG:
-	    case ST_SEC_PROG:
-	    case ST_MILLICODE:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_text;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-	      break;
-
-	    case ST_ENTRY:
-	      symname = bufp->name.n_strx + stringtab;
-	      /* For a dynamic executable, ST_ENTRY symbols are
-		 the stubs, while the ST_CODE symbol is the real
-		 function.  */
-	      if (dynamic)
-		ms_type = mst_solib_trampoline;
-	      else
-		ms_type = mst_text;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-	      break;
-
-	    case ST_STUB:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_solib_trampoline;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-	      break;
-
-	    case ST_DATA:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_data;
-	      break;
-	    default:
-	      continue;
-	    }
-	  break;
-
-#if 0
-	  /* SS_GLOBAL and SS_LOCAL are two names for the same thing (!).  */
-	case SS_GLOBAL:
-#endif
-	case SS_LOCAL:
-	  switch (bufp->symbol_type)
-	    {
-	    case ST_SYM_EXT:
-	    case ST_ARG_EXT:
-	      continue;
-
-	    case ST_CODE:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_file_text;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-
-	    check_strange_names:
-	      /* Utah GCC 2.5, FSF GCC 2.6 and later generate correct local
-		 label prefixes for stabs, constant data, etc.  So we need
-		 only filter out L$ symbols which are left in due to
-		 limitations in how GAS generates SOM relocations.
-
-		 When linking in the HPUX C-library the HP linker has
-		 the nasty habit of placing section symbols from the literal
-		 subspaces in the middle of the program's text.  Filter
-		 those out as best we can.  Check for first and last character
-		 being '$'.  */
-	      if ((symname[0] == 'L' && symname[1] == '$')
-		  || (symname[0] == '$' && symname[strlen(symname) - 1] == '$'))
-		continue;
-	      break;
-
-	    case ST_PRI_PROG:
-	    case ST_SEC_PROG:
-	    case ST_MILLICODE:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_file_text;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-	      break;
-
-	    case ST_ENTRY:
-	      symname = bufp->name.n_strx + stringtab;
-	      /* For a dynamic executable, ST_ENTRY symbols are
-		 the stubs, while the ST_CODE symbol is the real
-		 function.  */
-	      if (dynamic)
-		ms_type = mst_solib_trampoline;
-	      else
-		ms_type = mst_file_text;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-	      break;
-
-	    case ST_STUB:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_solib_trampoline;
-#ifdef SMASH_TEXT_ADDRESS
-	      SMASH_TEXT_ADDRESS (bufp->symbol_value);
-#endif
-	      break;
-
-
-	    case ST_DATA:
-	      symname = bufp->name.n_strx + stringtab;
-	      ms_type = mst_file_data;
-	      goto check_strange_names;
-
-	    default:
-	      continue;
-	    }
-	  break;
-
-	default:
-	  continue;
-	}
-
-      if (bufp->name.n_strx > obj_som_stringtab_size (abfd))
-	error ("Invalid symbol data; bad HP string table offset: %d",
-	       bufp->name.n_strx);
-
-      record_minimal_symbol (symname,
-			     bufp->symbol_value, ms_type, 
-			     objfile);
-    }
-
-  install_minimal_symbols (objfile);
-}
-
-/* Scan and build partial symbols for a symbol file.
-   We have been initialized by a call to pa_symfile_init, which 
-   currently does nothing.
-
-   SECTION_OFFSETS is a set of offsets to apply to relocate the symbols
-   in each section.  This is ignored, as it isn't needed for the PA.
-
-   MAINLINE is true if we are reading the main symbol
-   table (as opposed to a shared lib or dynamically loaded file).
-
-   This function only does the minimum work necessary for letting the
-   user "name" things symbolically; it does not read the entire symtab.
-   Instead, it reads the external and static symbols and puts them in partial
-   symbol tables.  When more extensive information is requested of a
-   file, the corresponding partial symbol table is mutated into a full
-   fledged symbol table by going back and reading the symbols
-   for real.
-
-   We look for sections with specific names, to tell us what debug
-   format to look for:  FIXME!!!
-
-   pastab_build_psymtabs() handles STABS symbols.
-
-   Note that PA files have a "minimal" symbol table, which is vaguely
-   reminiscent of a COFF symbol table, but has only the minimal information
-   necessary for linking.  We process this also, and use the information to
-   build gdb's minimal symbol table.  This gives us some minimal debugging
-   capability even for files compiled without -g.  */
-
-static void
-pa_symfile_read (objfile, section_offsets, mainline)
-     struct objfile *objfile;
-     struct section_offsets *section_offsets;
-     int mainline;
-{
-  bfd *abfd = objfile->obfd;
-  struct cleanup *back_to;
-  CORE_ADDR offset;
-
-  init_minimal_symbol_collection ();
-  back_to = make_cleanup (discard_minimal_symbols, 0);
-
-  make_cleanup (free_painfo, (PTR) objfile);
-
-  /* Process the normal PA symbol table first. */
-
-  /* FIXME, should take a section_offsets param, not just an offset.  */
-
-  offset = ANOFFSET (section_offsets, 0);
-  pa_symtab_read (abfd, offset, objfile);
-
-  /* Now process debugging information, which is contained in
-     special PA sections.  */
-
-  pastab_build_psymtabs (objfile, section_offsets, mainline);
-
-  do_cleanups (back_to);
-}
-
-/* This cleans up the objfile's sym_stab_info pointer, and the chain of
-   stab_section_info's, that might be dangling from it.  */
-
-static void
-free_painfo (objp)
-     PTR objp;
-{
-  struct objfile *objfile = (struct objfile *)objp;
-  struct dbx_symfile_info *dbxinfo = (struct dbx_symfile_info *)
-				     objfile->sym_stab_info;
-  struct stab_section_info *ssi, *nssi;
-
-  ssi = dbxinfo->stab_section_info;
-  while (ssi)
-    {
-      nssi = ssi->next;
-      mfree (objfile->md, ssi);
-      ssi = nssi;
-    }
-
-  dbxinfo->stab_section_info = 0;	/* Just say No mo info about this.  */
-}
-
-/* Initialize anything that needs initializing when a completely new symbol
-   file is specified (not just adding some symbols from another file, e.g. a
-   shared library).
-
-   We reinitialize buildsym, since we may be reading stabs from a PA file.  */
-
-static void
-pa_new_init (ignore)
-     struct objfile *ignore;
-{
-  stabsread_new_init ();
-  buildsym_new_init ();
-}
-
-/* Perform any local cleanups required when we are done with a particular
-   objfile.  I.E, we are in the process of discarding all symbol information
-   for an objfile, freeing up all memory held for it, and unlinking the
-   objfile struct from the global list of known objfiles. */
-
-static void
-pa_symfile_finish (objfile)
-     struct objfile *objfile;
-{
-  if (objfile -> sym_stab_info != NULL)
-    {
-      mfree (objfile -> md, objfile -> sym_stab_info);
-    }
-}
-
-/* PA specific initialization routine for reading symbols.
-
-   It is passed a pointer to a struct sym_fns which contains, among other
-   things, the BFD for the file whose symbols are being read, and a slot for
-   a pointer to "private data" which we can fill with goodies.
-
-   This routine is almost a complete ripoff of dbx_symfile_init.  The
-   common parts of these routines should be extracted and used instead of
-   duplicating this code.  FIXME. */
-
-static void
-pa_symfile_init (objfile)
-     struct objfile *objfile;
-{
-  int val;
-  bfd *sym_bfd = objfile->obfd;
-  char *name = bfd_get_filename (sym_bfd);
-  asection *stabsect;		/* Section containing symbol table entries */
-  asection *stringsect;		/* Section containing symbol name strings */
-
-  stabsect = bfd_get_section_by_name (sym_bfd, "$GDB_SYMBOLS$");
-  stringsect = bfd_get_section_by_name (sym_bfd, "$GDB_STRINGS$");
-
-  /* Allocate struct to keep track of the symfile */
-  objfile->sym_stab_info = (PTR)
-    xmmalloc (objfile -> md, sizeof (struct dbx_symfile_info));
-
-  memset ((PTR) objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
-
-
-  /* FIXME POKING INSIDE BFD DATA STRUCTURES */
-#define	STRING_TABLE_OFFSET	(stringsect->filepos)
-#define	SYMBOL_TABLE_OFFSET	(stabsect->filepos)
-
-  /* FIXME POKING INSIDE BFD DATA STRUCTURES */
-
-  DBX_SYMFILE_INFO (objfile)->stab_section_info = NULL;
-  DBX_TEXT_SECT (objfile) = bfd_get_section_by_name (sym_bfd, "$TEXT$");
-  if (!DBX_TEXT_SECT (objfile))
-    error ("Can't find $TEXT$ section in symbol file");
-
-  if (!stabsect)
-    return;
-
-  if (!stringsect)
-    error ("Found stabs, but not string section");
-  
-  /* FIXME: I suspect this should be external_nlist.  The size of host
-     types like long and bfd_vma should not affect how we read the
-     file.  */
-  DBX_SYMBOL_SIZE (objfile) = sizeof (struct internal_nlist);
-  DBX_SYMCOUNT (objfile) = bfd_section_size (sym_bfd, stabsect)
-    / DBX_SYMBOL_SIZE (objfile);
-  DBX_SYMTAB_OFFSET (objfile) = SYMBOL_TABLE_OFFSET;
-
-  /* Read the string table and stash it away in the psymbol_obstack.  It is
-     only needed as long as we need to expand psymbols into full symbols,
-     so when we blow away the psymbol the string table goes away as well.
-     Note that gdb used to use the results of attempting to malloc the
-     string table, based on the size it read, as a form of sanity check
-     for botched byte swapping, on the theory that a byte swapped string
-     table size would be so totally bogus that the malloc would fail.  Now
-     that we put in on the psymbol_obstack, we can't do this since gdb gets
-     a fatal error (out of virtual memory) if the size is bogus.  We can
-     however at least check to see if the size is zero or some negative
-     value. */
-
-  DBX_STRINGTAB_SIZE (objfile) = bfd_section_size (sym_bfd, stringsect);
-
-  if (DBX_SYMCOUNT (objfile) == 0
-      || DBX_STRINGTAB_SIZE (objfile) == 0)
-    return;
-
-  if (DBX_STRINGTAB_SIZE (objfile) <= 0
-      || DBX_STRINGTAB_SIZE (objfile) > bfd_get_size (sym_bfd))
-    error ("ridiculous string table size (%d bytes).",
-	   DBX_STRINGTAB_SIZE (objfile));
-
-  DBX_STRINGTAB (objfile) =
-    (char *) obstack_alloc (&objfile -> psymbol_obstack,
-			    DBX_STRINGTAB_SIZE (objfile));
-
-  /* Now read in the string table in one big gulp.  */
-
-  val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET, L_SET);
-  if (val < 0)
-    perror_with_name (name);
-  val = bfd_read (DBX_STRINGTAB (objfile), DBX_STRINGTAB_SIZE (objfile), 1,
-		  sym_bfd);
-  if (val == 0)
-    error ("End of file reading string table");
-  else if (val < 0)
-    /* It's possible bfd_read should be setting bfd_error, and we should be
-       checking that.  But currently it doesn't set bfd_error.  */
-    perror_with_name (name);
-  else if (val != DBX_STRINGTAB_SIZE (objfile))
-    error ("Short read reading string table");
-}
-
-/* PA specific parsing routine for section offsets.
-
-   Plain and simple for now.  */
-
-static struct section_offsets *
-pa_symfile_offsets (objfile, addr)
-     struct objfile *objfile;
-     CORE_ADDR addr;
-{
-  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++)
-    ANOFFSET (section_offsets, i) = addr;
-
-  return section_offsets;
-}
-
-/* Register that we are able to handle SOM object file formats.  */
-
-static struct sym_fns pa_sym_fns =
-{
-  bfd_target_som_flavour,
-  pa_new_init,		/* sym_new_init: init anything gbl to entire symtab */
-  pa_symfile_init,	/* sym_init: read initial info, setup for sym_read() */
-  pa_symfile_read,	/* sym_read: read a symbol file into symtab */
-  pa_symfile_finish,	/* sym_finish: finished with file, cleanup */
-  pa_symfile_offsets,	/* sym_offsets:  Translate ext. to int. relocation */
-  NULL			/* next: pointer to next struct sym_fns */
-};
-
-void
-_initialize_paread ()
-{
-  add_symtab_fns (&pa_sym_fns);
-}