/* Read dbx symbol tables and convert to internal format, for GDB.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003.
Free Software Foundation, Inc.
This file is part of GDB.
extern void _initialize_dbxread (void);
-static void process_now (struct objfile *);
+#if 0 /* OBSOLETE CFront */
+// OBSOLETE static void process_now (struct objfile *);
+#endif /* OBSOLETE CFront */
static void read_ofile_symtab (struct partial_symtab *);
/* Allocate struct to keep track of the symfile */
objfile->sym_stab_info = (struct dbx_symfile_info *)
xmmalloc (objfile->md, sizeof (struct dbx_symfile_info));
- memset ((PTR) objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
+ memset (objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
DBX_TEXT_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
DBX_DATA_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".data");
if (val < 0)
perror_with_name (name);
- memset ((PTR) size_temp, 0, sizeof (size_temp));
- val = bfd_bread ((PTR) size_temp, sizeof (size_temp), sym_bfd);
+ memset (size_temp, 0, sizeof (size_temp));
+ val = bfd_bread (size_temp, sizeof (size_temp), sym_bfd);
if (val < 0)
{
perror_with_name (name);
static int symbuf_idx;
static int symbuf_end;
-/* cont_elem is used for continuing information in cfront.
- It saves information about which types need to be fixed up and
- completed after all the stabs are read. */
-struct cont_elem
- {
- /* sym and stabstring for continuing information in cfront */
- struct symbol *sym;
- char *stabs;
- /* state dependencies (statics that must be preserved) */
- int sym_idx;
- int sym_end;
- int symnum;
- int (*func) (struct objfile *, struct symbol *, char *);
- /* other state dependencies include:
- (assumption is that these will not change since process_now FIXME!!)
- stringtab_global
- n_stabs
- objfile
- symfile_bfd */
- };
-
-static struct cont_elem *cont_list = 0;
-static int cont_limit = 0;
-static int cont_count = 0;
-
-/* Arrange for function F to be called with arguments SYM and P later
- in the stabs reading process. */
-void
-process_later (struct symbol *sym, char *p,
- int (*f) (struct objfile *, struct symbol *, char *))
-{
-
- /* Allocate more space for the deferred list. */
- if (cont_count >= cont_limit - 1)
- {
- cont_limit += 32; /* chunk size */
-
- cont_list
- = (struct cont_elem *) xrealloc (cont_list,
- (cont_limit
- * sizeof (struct cont_elem)));
- if (!cont_list)
- error ("Virtual memory exhausted\n");
- }
-
- /* Save state variables so we can process these stabs later. */
- cont_list[cont_count].sym_idx = symbuf_idx;
- cont_list[cont_count].sym_end = symbuf_end;
- cont_list[cont_count].symnum = symnum;
- cont_list[cont_count].sym = sym;
- cont_list[cont_count].stabs = p;
- cont_list[cont_count].func = f;
- cont_count++;
-}
-
-/* Call deferred funtions in CONT_LIST. */
-
-static void
-process_now (struct objfile *objfile)
-{
- int i;
- int save_symbuf_idx;
- int save_symbuf_end;
- int save_symnum;
- struct symbol *sym;
- char *stabs;
- int err;
- int (*func) (struct objfile *, struct symbol *, char *);
-
- /* Save the state of our caller, we'll want to restore it before
- returning. */
- save_symbuf_idx = symbuf_idx;
- save_symbuf_end = symbuf_end;
- save_symnum = symnum;
-
- /* Iterate over all the deferred stabs. */
- for (i = 0; i < cont_count; i++)
- {
- /* Restore the state for this deferred stab. */
- symbuf_idx = cont_list[i].sym_idx;
- symbuf_end = cont_list[i].sym_end;
- symnum = cont_list[i].symnum;
- sym = cont_list[i].sym;
- stabs = cont_list[i].stabs;
- func = cont_list[i].func;
-
- /* Call the function to handle this deferrd stab. */
- err = (*func) (objfile, sym, stabs);
- if (err)
- error ("Internal error: unable to resolve stab.\n");
- }
-
- /* Restore our caller's state. */
- symbuf_idx = save_symbuf_idx;
- symbuf_end = save_symbuf_end;
- symnum = save_symnum;
- cont_count = 0;
-}
-
+#if 0 /* OBSOLETE CFront */
+// OBSOLETE /* cont_elem is used for continuing information in cfront.
+// OBSOLETE It saves information about which types need to be fixed up and
+// OBSOLETE completed after all the stabs are read. */
+// OBSOLETE struct cont_elem
+// OBSOLETE {
+// OBSOLETE /* sym and stabstring for continuing information in cfront */
+// OBSOLETE struct symbol *sym;
+// OBSOLETE char *stabs;
+// OBSOLETE /* state dependencies (statics that must be preserved) */
+// OBSOLETE int sym_idx;
+// OBSOLETE int sym_end;
+// OBSOLETE int symnum;
+// OBSOLETE int (*func) (struct objfile *, struct symbol *, char *);
+// OBSOLETE /* other state dependencies include:
+// OBSOLETE (assumption is that these will not change since process_now FIXME!!)
+// OBSOLETE stringtab_global
+// OBSOLETE n_stabs
+// OBSOLETE objfile
+// OBSOLETE symfile_bfd */
+// OBSOLETE };
+
+// OBSOLETE static struct cont_elem *cont_list = 0;
+// OBSOLETE static int cont_limit = 0;
+// OBSOLETE static int cont_count = 0;
+
+// OBSOLETE /* Arrange for function F to be called with arguments SYM and P later
+// OBSOLETE in the stabs reading process. */
+// OBSOLETE void
+// OBSOLETE process_later (struct symbol *sym, char *p,
+// OBSOLETE int (*f) (struct objfile *, struct symbol *, char *))
+// OBSOLETE {
+
+// OBSOLETE /* Allocate more space for the deferred list. */
+// OBSOLETE if (cont_count >= cont_limit - 1)
+// OBSOLETE {
+// OBSOLETE cont_limit += 32; /* chunk size */
+
+// OBSOLETE cont_list
+// OBSOLETE = (struct cont_elem *) xrealloc (cont_list,
+// OBSOLETE (cont_limit
+// OBSOLETE * sizeof (struct cont_elem)));
+// OBSOLETE if (!cont_list)
+// OBSOLETE error ("Virtual memory exhausted\n");
+// OBSOLETE }
+
+// OBSOLETE /* Save state variables so we can process these stabs later. */
+// OBSOLETE cont_list[cont_count].sym_idx = symbuf_idx;
+// OBSOLETE cont_list[cont_count].sym_end = symbuf_end;
+// OBSOLETE cont_list[cont_count].symnum = symnum;
+// OBSOLETE cont_list[cont_count].sym = sym;
+// OBSOLETE cont_list[cont_count].stabs = p;
+// OBSOLETE cont_list[cont_count].func = f;
+// OBSOLETE cont_count++;
+// OBSOLETE }
+
+// OBSOLETE /* Call deferred funtions in CONT_LIST. */
+
+// OBSOLETE static void
+// OBSOLETE process_now (struct objfile *objfile)
+// OBSOLETE {
+// OBSOLETE int i;
+// OBSOLETE int save_symbuf_idx;
+// OBSOLETE int save_symbuf_end;
+// OBSOLETE int save_symnum;
+// OBSOLETE struct symbol *sym;
+// OBSOLETE char *stabs;
+// OBSOLETE int err;
+// OBSOLETE int (*func) (struct objfile *, struct symbol *, char *);
+
+// OBSOLETE /* Save the state of our caller, we'll want to restore it before
+// OBSOLETE returning. */
+// OBSOLETE save_symbuf_idx = symbuf_idx;
+// OBSOLETE save_symbuf_end = symbuf_end;
+// OBSOLETE save_symnum = symnum;
+
+// OBSOLETE /* Iterate over all the deferred stabs. */
+// OBSOLETE for (i = 0; i < cont_count; i++)
+// OBSOLETE {
+// OBSOLETE /* Restore the state for this deferred stab. */
+// OBSOLETE symbuf_idx = cont_list[i].sym_idx;
+// OBSOLETE symbuf_end = cont_list[i].sym_end;
+// OBSOLETE symnum = cont_list[i].symnum;
+// OBSOLETE sym = cont_list[i].sym;
+// OBSOLETE stabs = cont_list[i].stabs;
+// OBSOLETE func = cont_list[i].func;
+
+// OBSOLETE /* Call the function to handle this deferrd stab. */
+// OBSOLETE err = (*func) (objfile, sym, stabs);
+// OBSOLETE if (err)
+// OBSOLETE error ("Internal error: unable to resolve stab.\n");
+// OBSOLETE }
+
+// OBSOLETE /* Restore our caller's state. */
+// OBSOLETE symbuf_idx = save_symbuf_idx;
+// OBSOLETE symbuf_end = save_symbuf_end;
+// OBSOLETE symnum = save_symnum;
+// OBSOLETE cont_count = 0;
+// OBSOLETE }
+#endif /* OBSOLETE CFront */
/* Name of last function encountered. Used in Solaris to approximate
object file boundaries. */
static unsigned int symbuf_left;
static unsigned int symbuf_read;
+/* This variable stores a global stabs buffer, if we read stabs into
+ memory in one chunk in order to process relocations. */
+static bfd_byte *stabs_data;
+
/* Refill the symbol table input buffer
and set the variables that control fetching entries from it.
Reports an error if no data available.
unsigned int count;
int nbytes;
- if (symbuf_sections == NULL)
- count = sizeof (symbuf);
+ if (stabs_data)
+ {
+ nbytes = sizeof (symbuf);
+ if (nbytes > symbuf_left)
+ nbytes = symbuf_left;
+ memcpy (symbuf, stabs_data + symbuf_read, nbytes);
+ }
+ else if (symbuf_sections == NULL)
+ {
+ count = sizeof (symbuf);
+ nbytes = bfd_bread (symbuf, count, sym_bfd);
+ }
else
{
if (symbuf_left <= 0)
count = symbuf_left;
if (count > sizeof (symbuf))
count = sizeof (symbuf);
+ nbytes = bfd_bread (symbuf, count, sym_bfd);
}
- nbytes = bfd_bread ((PTR) symbuf, count, sym_bfd);
if (nbytes < 0)
perror_with_name (bfd_get_filename (sym_bfd));
else if (nbytes == 0)
symbuf_read += nbytes;
}
+static void
+stabs_seek (int sym_offset)
+{
+ if (stabs_data)
+ {
+ symbuf_read += sym_offset;
+ symbuf_left -= sym_offset;
+ }
+ else
+ bfd_seek (symfile_bfd, sym_offset, SEEK_CUR);
+}
+
#define INTERNALIZE_SYMBOL(intern, extern, abfd) \
{ \
(intern).n_type = bfd_h_get_8 (abfd, (extern)->e_type); \
static void
free_bincl_list (struct objfile *objfile)
{
- xmfree (objfile->md, (PTR) bincl_list);
+ xmfree (objfile->md, bincl_list);
bincls_allocated = 0;
}
psymtab_include_list = (char **)
alloca ((includes_allocated *= 2) *
sizeof (char *));
- memcpy ((PTR) psymtab_include_list, (PTR) orig,
+ memcpy (psymtab_include_list, orig,
includes_used * sizeof (char *));
}
continue;
namestring = STATIC_TRANSFORM_NAME (namestring);
#endif
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_STATIC,
+ VAR_DOMAIN, LOC_STATIC,
&objfile->static_psymbols,
0, nlist.n_value,
psymtab_language, objfile);
/* The addresses in these entries are reported to be
wrong. See the code that reads 'G's for symtabs. */
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_STATIC,
+ VAR_DOMAIN, LOC_STATIC,
&objfile->global_psymbols,
0, nlist.n_value,
psymtab_language, objfile);
&& namestring[0] != ' '))
{
add_psymbol_to_list (namestring, p - namestring,
- STRUCT_NAMESPACE, LOC_TYPEDEF,
+ STRUCT_DOMAIN, LOC_TYPEDEF,
&objfile->static_psymbols,
nlist.n_value, 0,
psymtab_language, objfile);
{
/* Also a typedef with the same name. */
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_TYPEDEF,
+ VAR_DOMAIN, LOC_TYPEDEF,
&objfile->static_psymbols,
nlist.n_value, 0,
psymtab_language, objfile);
p += 1;
}
- /* The semantics of C++ state that "struct foo { ... }"
- also defines a typedef for "foo". Unfortuantely, cfront
- never makes the typedef when translating from C++ to C.
- We make the typedef here so that "ptype foo" works as
- expected for cfront translated code. */
- else if (psymtab_language == language_cplus)
- {
- /* Also a typedef with the same name. */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_TYPEDEF,
- &objfile->static_psymbols,
- nlist.n_value, 0,
- psymtab_language, objfile);
- }
+#if 0 /* OBSOLETE CFront */
+// OBSOLETE /* The semantics of C++ state that "struct foo { ... }"
+// OBSOLETE also defines a typedef for "foo". Unfortuantely, cfront
+// OBSOLETE never makes the typedef when translating from C++ to C.
+// OBSOLETE We make the typedef here so that "ptype foo" works as
+// OBSOLETE expected for cfront translated code. */
+// OBSOLETE else if (psymtab_language == language_cplus)
+// OBSOLETE {
+// OBSOLETE /* Also a typedef with the same name. */
+// OBSOLETE add_psymbol_to_list (namestring, p - namestring,
+// OBSOLETE VAR_DOMAIN, LOC_TYPEDEF,
+// OBSOLETE &objfile->static_psymbols,
+// OBSOLETE nlist.n_value, 0,
+// OBSOLETE psymtab_language, objfile);
+// OBSOLETE }
+#endif /* OBSOLETE CFront */
}
goto check_enum;
case 't':
if (p != namestring) /* a name is there, not just :T... */
{
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_TYPEDEF,
+ VAR_DOMAIN, LOC_TYPEDEF,
&objfile->static_psymbols,
nlist.n_value, 0,
psymtab_language, objfile);
/* Note that the value doesn't matter for
enum constants in psymtabs, just in symtabs. */
add_psymbol_to_list (p, q - p,
- VAR_NAMESPACE, LOC_CONST,
+ VAR_DOMAIN, LOC_CONST,
&objfile->static_psymbols, 0,
0, psymtab_language, objfile);
/* Point past the name. */
case 'c':
/* Constant, e.g. from "const" in Pascal. */
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_CONST,
+ VAR_DOMAIN, LOC_CONST,
&objfile->static_psymbols, nlist.n_value,
0, psymtab_language, objfile);
continue;
textlow_not_set = 0;
}
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_BLOCK,
+ VAR_DOMAIN, LOC_BLOCK,
&objfile->static_psymbols,
0, nlist.n_value,
psymtab_language, objfile);
textlow_not_set = 0;
}
add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_BLOCK,
+ VAR_DOMAIN, LOC_BLOCK,
&objfile->global_psymbols,
0, nlist.n_value,
psymtab_language, objfile);
case '9':
case '-':
case '#': /* for symbol identification (used in live ranges) */
- /* added to support cfront stabs strings */
- case 'Z': /* for definition continuations */
- case 'P': /* for prototypes */
+#if 0 /* OBSOLETE CFront */
+// OBSOLETE /* added to support cfront stabs strings */
+// OBSOLETE case 'Z': /* for definition continuations */
+// OBSOLETE case 'P': /* for prototypes */
+#endif /* OBSOLETE CFront */
continue;
case ':':
(struct partial_symtab **)
alloca ((dependencies_allocated *= 2)
* sizeof (struct partial_symtab *));
- memcpy ((PTR) dependency_list, (PTR) orig,
+ memcpy (dependency_list, orig,
(dependencies_used
* sizeof (struct partial_symtab *)));
#ifdef DEBUG_INFO
dbx_psymtab_to_symtab (struct partial_symtab *pst)
{
bfd *sym_bfd;
+ struct cleanup *back_to = NULL;
if (!pst)
return;
next_symbol_text_func = dbx_next_symbol_text;
+ if (DBX_STAB_SECTION (pst->objfile))
+ {
+ stabs_data
+ = symfile_relocate_debug_section (pst->objfile->obfd,
+ DBX_STAB_SECTION (pst->objfile),
+ NULL);
+ if (stabs_data)
+ back_to = make_cleanup (free_current_contents, (void *) &stabs_data);
+ }
+
dbx_psymtab_to_symtab_1 (pst);
+ if (back_to)
+ do_cleanups (back_to);
+
/* Match with global symbols. This only needs to be done once,
after all of the symtabs and dependencies have been read in. */
scan_file_globals (pst->objfile);
abfd = objfile->obfd;
symfile_bfd = objfile->obfd; /* Implicit param to next_text_symbol */
symbuf_end = symbuf_idx = 0;
+ symbuf_read = 0;
+ symbuf_left = sym_offset + sym_size;
/* It is necessary to actually read one symbol *before* the start
of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL
would slow down initial readin, so we look for it here instead. */
if (!processing_acc_compilation && sym_offset >= (int) symbol_size)
{
- bfd_seek (symfile_bfd, sym_offset - symbol_size, SEEK_CUR);
+ stabs_seek (sym_offset - symbol_size);
fill_symbuf (abfd);
bufp = &symbuf[symbuf_idx++];
INTERNALIZE_SYMBOL (nlist, bufp, abfd);
/* The N_SO starting this symtab is the first symbol, so we
better not check the symbol before it. I'm not this can
happen, but it doesn't hurt to check for it. */
- bfd_seek (symfile_bfd, sym_offset, SEEK_CUR);
+ stabs_seek (sym_offset);
processing_gcc_compilation = 0;
}
pst->symtab = end_symtab (text_offset + text_size, objfile, SECT_OFF_TEXT (objfile));
- /* Process items which we had to "process_later" due to dependencies
- on other stabs. */
- process_now (objfile);
-
+#if 0 /* OBSOLETE CFront */
+// OBSOLETE /* Process items which we had to "process_later" due to dependencies
+// OBSOLETE on other stabs. */
+// OBSOLETE process_now (objfile);
+#endif /* OBSOLETE CFront */
end_stabs ();
}
\f
peculiarities of function_start_offset. */
static CORE_ADDR last_function_start;
- /* If this is nonzero, we've seen an N_SLINE since the start of the current
- function. Initialized to nonzero to assure that last_function_start
- is never used uninitialized. */
+ /* If this is nonzero, we've seen an N_SLINE since the start of the
+ current function. We use this to tell us to move the first sline
+ to the beginning of the function regardless of what its given
+ value is. */
static int sline_found_in_function = 1;
/* If this is nonzero, we've seen a non-gcc N_OPT symbol for this source
break;
}
- record_line (current_subfile, 0, function_start_offset + valu);
+ /* The following check is added before recording line 0 at
+ end of function so as to handle hand-generated stabs
+ which may have an N_FUN stabs at the end of the function, but
+ no N_SLINE stabs. */
+ if (sline_found_in_function)
+ record_line (current_subfile, 0, last_function_start + valu);
+
within_function = 0;
new = pop_context ();
int l = colon_pos - name;
m = lookup_minimal_symbol_by_pc (last_pc_address);
- if (m && STREQN (SYMBOL_NAME (m), name, l)
- && SYMBOL_NAME (m)[l] == '\0')
+ if (m && STREQN (DEPRECATED_SYMBOL_NAME (m), name, l)
+ && DEPRECATED_SYMBOL_NAME (m)[l] == '\0')
/* last_pc_address was in this function */
valu = SYMBOL_VALUE (m);
- else if (m && SYMBOL_NAME (m + 1)
- && STREQN (SYMBOL_NAME (m + 1), name, l)
- && SYMBOL_NAME (m + 1)[l] == '\0')
+ else if (m && DEPRECATED_SYMBOL_NAME (m + 1)
+ && STREQN (DEPRECATED_SYMBOL_NAME (m + 1), name, l)
+ && DEPRECATED_SYMBOL_NAME (m + 1)[l] == '\0')
/* last_pc_address was in last function */
valu = SYMBOL_VALUE (m + 1);
else
the base address of the text segment).
MAINLINE is true if we are reading the main symbol
table (as opposed to a shared lib or dynamically loaded file).
- STABOFFSET and STABSIZE define the location in OBJFILE where the .stab
- section exists.
+ STABSECT is the BFD section information for the .stab section.
STABSTROFFSET and STABSTRSIZE define the location in OBJFILE where the
.stabstr section exists.
void
elfstab_build_psymtabs (struct objfile *objfile, int mainline,
- file_ptr staboffset, unsigned int stabsize,
+ asection *stabsect,
file_ptr stabstroffset, unsigned int stabstrsize)
{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd);
struct dbx_symfile_info *info;
+ struct cleanup *back_to = 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. */
#define ELF_STABS_SYMBOL_SIZE 12 /* XXX FIXME XXX */
DBX_SYMBOL_SIZE (objfile) = ELF_STABS_SYMBOL_SIZE;
- DBX_SYMCOUNT (objfile) = stabsize / DBX_SYMBOL_SIZE (objfile);
+ DBX_SYMCOUNT (objfile)
+ = bfd_section_size (objfile->obfd, stabsect) / DBX_SYMBOL_SIZE (objfile);
DBX_STRINGTAB_SIZE (objfile) = stabstrsize;
- DBX_SYMTAB_OFFSET (objfile) = staboffset;
+ DBX_SYMTAB_OFFSET (objfile) = stabsect->filepos;
+ DBX_STAB_SECTION (objfile) = stabsect;
if (stabstrsize > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", stabstrsize);
buildsym_new_init ();
free_header_files ();
init_header_files ();
- install_minimal_symbols (objfile);
processing_acc_compilation = 1;
+ symbuf_read = 0;
+ symbuf_left = bfd_section_size (objfile->obfd, stabsect);
+ stabs_data = symfile_relocate_debug_section (objfile->obfd, stabsect, NULL);
+ if (stabs_data)
+ back_to = 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
- incremental load here. */
+ incremental load here. dbx_symfile_read should not generate any new
+ minimal symbols, since we will have already read the ELF dynamic symbol
+ table and normal symbol entries won't be in the ".stab" section; but in
+ case it does, it will install them itself. */
dbx_symfile_read (objfile, 0);
+
+ if (back_to)
+ do_cleanups (back_to);
}
\f
/* Scan and build partial symbols for a file with special sections for stabs
buildsym_new_init ();
free_header_files ();
init_header_files ();
- install_minimal_symbols (objfile);
/* Now, do an incremental load */
projects / binutils-gdb.git / blobdiff