/* Read dbx symbol tables and convert to internal format, for GDB.
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2008, 2009, 2010.
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2008, 2009, 2010, 2011.
Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "gdbcore.h" /* for bfd stuff */
#include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
+#include "filenames.h"
#include "objfiles.h"
#include "buildsym.h"
#include "stabsread.h"
#define FILE_STRING_OFFSET(p) (SYMLOC(p)->file_string_offset)
\f
+/* The objfile we are currently reading. */
+
+static struct objfile *dbxread_objfile;
+
/* Remember what we deduced to be the source language of this psymtab. */
static enum language psymtab_language = language_unknown;
static void
add_old_header_file (char *name, int instance)
{
- struct header_file *p = HEADER_FILES (current_objfile);
+ struct header_file *p = HEADER_FILES (dbxread_objfile);
int i;
- for (i = 0; i < N_HEADER_FILES (current_objfile); i++)
- if (strcmp (p[i].name, name) == 0 && instance == p[i].instance)
+ for (i = 0; i < N_HEADER_FILES (dbxread_objfile); i++)
+ if (filename_cmp (p[i].name, name) == 0 && instance == p[i].instance)
{
add_this_object_header_file (i);
return;
/* Make sure there is room for one more header file. */
- i = N_ALLOCATED_HEADER_FILES (current_objfile);
+ i = N_ALLOCATED_HEADER_FILES (dbxread_objfile);
- if (N_HEADER_FILES (current_objfile) == i)
+ if (N_HEADER_FILES (dbxread_objfile) == i)
{
if (i == 0)
{
- N_ALLOCATED_HEADER_FILES (current_objfile) = 10;
- HEADER_FILES (current_objfile) = (struct header_file *)
+ N_ALLOCATED_HEADER_FILES (dbxread_objfile) = 10;
+ HEADER_FILES (dbxread_objfile) = (struct header_file *)
xmalloc (10 * sizeof (struct header_file));
}
else
{
i *= 2;
- N_ALLOCATED_HEADER_FILES (current_objfile) = i;
- HEADER_FILES (current_objfile) = (struct header_file *)
- xrealloc ((char *) HEADER_FILES (current_objfile),
+ N_ALLOCATED_HEADER_FILES (dbxread_objfile) = i;
+ HEADER_FILES (dbxread_objfile) = (struct header_file *)
+ xrealloc ((char *) HEADER_FILES (dbxread_objfile),
(i * sizeof (struct header_file)));
}
}
/* Create an entry for this header file. */
- i = N_HEADER_FILES (current_objfile)++;
- hfile = HEADER_FILES (current_objfile) + i;
+ i = N_HEADER_FILES (dbxread_objfile)++;
+ hfile = HEADER_FILES (dbxread_objfile) + i;
hfile->name = xstrdup (name);
hfile->instance = instance;
hfile->length = 10;
static struct type **
explicit_lookup_type (int real_filenum, int index)
{
- struct header_file *f = &HEADER_FILES (current_objfile)[real_filenum];
+ struct header_file *f = &HEADER_FILES (dbxread_objfile)[real_filenum];
if (index >= f->length)
{
goto record_it;
case N_UNDF | N_EXT:
- if (nlist.n_value != 0)
- {
- /* This is a "Fortran COMMON" symbol. See if the target
- environment knows where it has been relocated to. */
-
- CORE_ADDR reladdr;
-
- namestring = set_namestring (objfile, &nlist);
- if (target_lookup_symbol (namestring, &reladdr))
- {
- continue; /* Error in lookup; ignore symbol for now. */
- }
- nlist.n_type ^= (N_BSS ^ N_UNDF); /* Define it as a
- bss-symbol. */
- nlist.n_value = reladdr;
- goto bss_ext_symbol;
- }
- continue; /* Just undefined, not COMMON. */
+ /* The case (nlist.n_value != 0) is a "Fortran COMMON" symbol.
+ We used to rely on the target to tell us whether it knows
+ where the symbol has been relocated to, but none of the
+ target implementations actually provided that operation.
+ So we just ignore the symbol, the same way we would do if
+ we had a target-side symbol lookup which returned no match.
+
+ All other symbols (with nlist.n_value == 0), are really
+ undefined, and so we ignore them too. */
+ continue;
case N_UNDF:
if (processing_acc_compilation && nlist.n_strx == 1)
CORE_ADDR valu;
static int prev_so_symnum = -10;
static int first_so_symnum;
- char *p;
+ const char *p;
static char *dirname_nso;
int prev_textlow_not_set;
If pst exists, is empty, and has a filename ending in '/',
we assume the previous N_SO was a directory name. */
- p = strrchr (namestring, '/');
- if (p && *(p + 1) == '\000')
+ p = lbasename (namestring);
+ if (p != namestring && *p == '\000')
{
/* Save the directory name SOs locally, then save it into
the psymtab when it's created below. */
things like "break c-exp.y:435" need to work (I
suppose the psymtab_include_list could be hashed or put
in a binary tree, if profiling shows this is a major hog). */
- if (pst && strcmp (namestring, pst->filename) == 0)
+ if (pst && filename_cmp (namestring, pst->filename) == 0)
continue;
{
int i;
for (i = 0; i < includes_used; i++)
- if (strcmp (namestring, psymtab_include_list[i]) == 0)
+ if (filename_cmp (namestring, psymtab_include_list[i]) == 0)
{
i = -1;
break;
objfile->section_offsets. */
section_offsets = pst->section_offsets;
- current_objfile = objfile;
+ dbxread_objfile = objfile;
subfile_stack = NULL;
stringtab_global = DBX_STRINGTAB (objfile);
end_stabs ();
- current_objfile = NULL;
+ dbxread_objfile = NULL;
}
\f
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd);
struct dbx_symfile_info *info;
- struct cleanup *back_to = NULL;
+ struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
/* There is already a dbx_symfile_info allocated by our caller.
It might even contain some info from the ELF symtab to help us. */
symbuf_left = bfd_section_size (objfile->obfd, stabsect);
stabs_data = symfile_relocate_debug_section (objfile, stabsect, NULL);
if (stabs_data)
- back_to = make_cleanup (free_current_contents, (void *) &stabs_data);
+ make_cleanup (free_current_contents, (void *) &stabs_data);
/* In an elf file, we've already installed the minimal symbols that came
from the elf (non-stab) symbol table, so always act like an
case it does, it will install them itself. */
dbx_symfile_read (objfile, 0);
- if (back_to)
- do_cleanups (back_to);
+ do_cleanups (back_to);
}
\f
/* Scan and build partial symbols for a file with special sections for stabs
projects / external / binutils.git / blobdiff