/* Read dbx symbol tables and convert to internal format, for GDB.
- Copyright (C) 1986-2004, 2008-2012 Free Software Foundation, Inc.
+ Copyright (C) 1986-2013 Free Software Foundation, Inc.
This file is part of GDB.
#include "cp-abi.h"
#include "cp-support.h"
#include "psympriv.h"
+#include "block.h"
#include "gdb_assert.h"
#include "gdb_string.h"
native, now. */
\f
+/* Key for dbx-associated data. */
+
+const struct objfile_data *dbx_objfile_data_key;
+
/* We put a pointer to this structure in the read_symtab_private field
of the psymtab. */
extern void _initialize_dbxread (void);
-static void read_ofile_symtab (struct partial_symtab *);
+static void read_ofile_symtab (struct objfile *, struct partial_symtab *);
-static void dbx_psymtab_to_symtab (struct partial_symtab *);
+static void dbx_read_symtab (struct partial_symtab *self,
+ struct objfile *objfile);
-static void dbx_psymtab_to_symtab_1 (struct partial_symtab *);
+static void dbx_psymtab_to_symtab_1 (struct objfile *, struct partial_symtab *);
static void read_dbx_dynamic_symtab (struct objfile *objfile);
char *name = bfd_get_filename (sym_bfd);
asection *text_sect;
unsigned char size_temp[DBX_STRINGTAB_SIZE_SIZE];
+ struct dbx_symfile_info *dbx;
/* Allocate struct to keep track of the symfile. */
- objfile->deprecated_sym_stab_info = (struct dbx_symfile_info *)
- xmalloc (sizeof (struct dbx_symfile_info));
- memset (objfile->deprecated_sym_stab_info, 0,
- sizeof (struct dbx_symfile_info));
+ dbx = XCNEW (struct dbx_symfile_info);
+ set_objfile_data (objfile, dbx_objfile_data_key, dbx);
DBX_TEXT_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
DBX_DATA_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".data");
static void
dbx_symfile_finish (struct objfile *objfile)
{
- if (objfile->deprecated_sym_stab_info != NULL)
+ free_header_files ();
+}
+
+static void
+dbx_free_symfile_info (struct objfile *objfile, void *arg)
+{
+ struct dbx_symfile_info *dbx = arg;
+
+ if (dbx->header_files != NULL)
{
- if (HEADER_FILES (objfile) != NULL)
- {
- int i = N_HEADER_FILES (objfile);
- struct header_file *hfiles = HEADER_FILES (objfile);
+ int i = dbx->n_header_files;
+ struct header_file *hfiles = dbx->header_files;
- while (--i >= 0)
- {
- xfree (hfiles[i].name);
- xfree (hfiles[i].vector);
- }
- xfree (hfiles);
+ while (--i >= 0)
+ {
+ xfree (hfiles[i].name);
+ xfree (hfiles[i].vector);
}
- xfree (objfile->deprecated_sym_stab_info);
+ xfree (hfiles);
}
- free_header_files ();
+
+ xfree (dbx);
}
+
\f
/* Buffer for reading the symbol table entries. */
struct partial_symtab *pst;
/* List of current psymtab's include files. */
- char **psymtab_include_list;
+ const char **psymtab_include_list;
int includes_allocated;
int includes_used;
includes_allocated = 30;
includes_used = 0;
- psymtab_include_list = (char **) alloca (includes_allocated *
- sizeof (char *));
+ psymtab_include_list = (const char **) alloca (includes_allocated *
+ sizeof (const char *));
dependencies_allocated = 30;
dependencies_used = 0;
init_bincl_list (20, objfile);
back_to = make_cleanup_free_bincl_list (objfile);
- last_source_file = NULL;
+ set_last_source_file (NULL);
lowest_text_address = (CORE_ADDR) -1;
which are not the address. */
&& nlist.n_value >= pst->textlow)
{
- end_psymtab (pst, psymtab_include_list, includes_used,
- symnum * symbol_size,
+ end_psymtab (objfile, pst, psymtab_include_list,
+ includes_used, symnum * symbol_size,
nlist.n_value > pst->texthigh
? nlist.n_value : pst->texthigh,
dependency_list, dependencies_used,
if (pst)
{
- end_psymtab (pst, psymtab_include_list, includes_used,
- symnum * symbol_size,
+ end_psymtab (objfile, pst, psymtab_include_list,
+ includes_used, symnum * symbol_size,
valu > pst->texthigh ? valu : pst->texthigh,
dependency_list, dependencies_used,
prev_textlow_not_set);
psymtab_include_list[includes_used++] = namestring;
if (includes_used >= includes_allocated)
{
- char **orig = psymtab_include_list;
+ const char **orig = psymtab_include_list;
- psymtab_include_list = (char **)
- alloca ((includes_allocated *= 2) * sizeof (char *));
+ psymtab_include_list = (const char **)
+ alloca ((includes_allocated *= 2) * sizeof (const char *));
memcpy (psymtab_include_list, orig,
- includes_used * sizeof (char *));
+ includes_used * sizeof (const char *));
}
continue;
}
if (new_name != NULL)
{
sym_len = strlen (new_name);
- sym_name = obsavestring (new_name, sym_len,
- &objfile->objfile_obstack);
+ sym_name = obstack_copy0 (&objfile->objfile_obstack,
+ new_name, sym_len);
xfree (new_name);
}
xfree (name);
follows this module. */
if (pst && gdbarch_sofun_address_maybe_missing (gdbarch))
{
- end_psymtab (pst, psymtab_include_list, includes_used,
+ end_psymtab (objfile, pst, psymtab_include_list, includes_used,
symnum * symbol_size,
(CORE_ADDR) 0, dependency_list,
dependencies_used, textlow_not_set);
: lowest_text_address)
+ text_size;
- end_psymtab (pst, psymtab_include_list, includes_used,
+ end_psymtab (objfile, pst, psymtab_include_list, includes_used,
symnum * symbol_size,
text_end > pst->texthigh ? text_end : pst->texthigh,
dependency_list, dependencies_used, textlow_not_set);
result->read_symtab_private = obstack_alloc (&objfile->objfile_obstack,
sizeof (struct symloc));
LDSYMOFF (result) = ldsymoff;
- result->read_symtab = dbx_psymtab_to_symtab;
+ result->read_symtab = dbx_read_symtab;
SYMBOL_SIZE (result) = symbol_size;
SYMBOL_OFFSET (result) = symbol_table_offset;
STRING_OFFSET (result) = string_table_offset;
FIXME: List variables and peculiarities of same. */
struct partial_symtab *
-end_psymtab (struct partial_symtab *pst, char **include_list, int num_includes,
+end_psymtab (struct objfile *objfile, struct partial_symtab *pst,
+ const char **include_list, int num_includes,
int capping_symbol_offset, CORE_ADDR capping_text,
struct partial_symtab **dependency_list, int number_dependencies,
int textlow_not_set)
{
int i;
- struct objfile *objfile = pst->objfile;
struct gdbarch *gdbarch = get_objfile_arch (objfile);
if (capping_symbol_offset != -1)
subpst->read_symtab = pst->read_symtab;
}
- sort_pst_symbols (pst);
+ sort_pst_symbols (objfile, pst);
if (num_includes == 0
&& number_dependencies == 0
is not empty, but we don't realize that. Fixing that without slowing
things down might be tricky. */
- discard_psymtab (pst);
+ discard_psymtab (objfile, pst);
/* Indicate that psymtab was thrown away. */
pst = (struct partial_symtab *) NULL;
}
\f
static void
-dbx_psymtab_to_symtab_1 (struct partial_symtab *pst)
+dbx_psymtab_to_symtab_1 (struct objfile *objfile, struct partial_symtab *pst)
{
struct cleanup *old_chain;
int i;
- if (!pst)
- return;
-
if (pst->readin)
{
fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. "
wrap_here (""); /* Flush output. */
gdb_flush (gdb_stdout);
}
- dbx_psymtab_to_symtab_1 (pst->dependencies[i]);
+ dbx_psymtab_to_symtab_1 (objfile, pst->dependencies[i]);
}
if (LDSYMLEN (pst)) /* Otherwise it's a dummy. */
symbol_size = SYMBOL_SIZE (pst);
/* Read in this file's symbols. */
- bfd_seek (pst->objfile->obfd, SYMBOL_OFFSET (pst), SEEK_SET);
- read_ofile_symtab (pst);
+ bfd_seek (objfile->obfd, SYMBOL_OFFSET (pst), SEEK_SET);
+ read_ofile_symtab (objfile, pst);
do_cleanups (old_chain);
}
}
/* Read in all of the symbols for a given psymtab for real.
- Be verbose about it if the user wants that. */
+ Be verbose about it if the user wants that. SELF is not NULL. */
static void
-dbx_psymtab_to_symtab (struct partial_symtab *pst)
+dbx_read_symtab (struct partial_symtab *self, struct objfile *objfile)
{
bfd *sym_bfd;
struct cleanup *back_to = NULL;
- if (!pst)
- return;
-
- if (pst->readin)
+ if (self->readin)
{
fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. "
"Shouldn't happen.\n",
- pst->filename);
+ self->filename);
return;
}
- if (LDSYMLEN (pst) || pst->number_of_dependencies)
+ if (LDSYMLEN (self) || self->number_of_dependencies)
{
/* Print the message now, before reading the string table,
to avoid disconcerting pauses. */
if (info_verbose)
{
- printf_filtered ("Reading in symbols for %s...", pst->filename);
+ printf_filtered ("Reading in symbols for %s...", self->filename);
gdb_flush (gdb_stdout);
}
- sym_bfd = pst->objfile->obfd;
+ sym_bfd = objfile->obfd;
next_symbol_text_func = dbx_next_symbol_text;
- if (DBX_STAB_SECTION (pst->objfile))
+ if (DBX_STAB_SECTION (objfile))
{
stabs_data
- = symfile_relocate_debug_section (pst->objfile,
- DBX_STAB_SECTION (pst->objfile),
+ = symfile_relocate_debug_section (objfile,
+ DBX_STAB_SECTION (objfile),
NULL);
if (stabs_data)
(void *) &stabs_data);
}
- dbx_psymtab_to_symtab_1 (pst);
+ dbx_psymtab_to_symtab_1 (objfile, self);
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);
+ scan_file_globals (objfile);
/* Finish up the debug error message. */
if (info_verbose)
/* Read in a defined section of a specific object file's symbols. */
static void
-read_ofile_symtab (struct partial_symtab *pst)
+read_ofile_symtab (struct objfile *objfile, struct partial_symtab *pst)
{
char *namestring;
struct external_nlist *bufp;
unsigned char type;
unsigned max_symnum;
bfd *abfd;
- struct objfile *objfile;
int sym_offset; /* Offset to start of symbols to read */
int sym_size; /* Size of symbols to read */
CORE_ADDR text_offset; /* Start of text segment for symbols */
int text_size; /* Size of text segment for symbols */
struct section_offsets *section_offsets;
- objfile = pst->objfile;
sym_offset = LDSYMOFF (pst);
sym_size = LDSYMLEN (pst);
text_offset = pst->textlow;
subfile_stack = NULL;
stringtab_global = DBX_STRINGTAB (objfile);
- last_source_file = NULL;
+ set_last_source_file (NULL);
abfd = objfile->obfd;
symfile_bfd = objfile->obfd; /* Implicit param to next_text_symbol. */
if (strncmp (tempstring, "__gnu_compiled", 14) == 0)
processing_gcc_compilation = 2;
}
-
- /* Try to select a C++ demangling based on the compilation unit
- producer. */
-
-#if 0
- /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't
- know whether it will use the old style or v3 mangling. */
- if (processing_gcc_compilation)
- {
- if (AUTO_DEMANGLING)
- {
- set_demangling_style (GNU_DEMANGLING_STYLE_STRING);
- }
- }
-#endif
}
else
{
processing_gcc_compilation = 1;
else if (strcmp (namestring, GCC2_COMPILED_FLAG_SYMBOL) == 0)
processing_gcc_compilation = 2;
-
-#if 0
- /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't
- know whether it will use the old style or v3 mangling. */
- if (AUTO_DEMANGLING)
- {
- set_demangling_style (GNU_DEMANGLING_STYLE_STRING);
- }
-#endif
}
else if (type & N_EXT || type == (unsigned char) N_TEXT
|| type == (unsigned char) N_NBTEXT)
}
\f
+/* Record the namespace that the function defined by SYMBOL was
+ defined in, if necessary. BLOCK is the associated block; use
+ OBSTACK for allocation. */
+
+static void
+cp_set_block_scope (const struct symbol *symbol,
+ struct block *block,
+ struct obstack *obstack)
+{
+ if (SYMBOL_DEMANGLED_NAME (symbol) != NULL)
+ {
+ /* Try to figure out the appropriate namespace from the
+ demangled name. */
+
+ /* FIXME: carlton/2003-04-15: If the function in question is
+ a method of a class, the name will actually include the
+ name of the class as well. This should be harmless, but
+ is a little unfortunate. */
+
+ const char *name = SYMBOL_DEMANGLED_NAME (symbol);
+ unsigned int prefix_len = cp_entire_prefix_len (name);
+
+ block_set_scope (block,
+ obstack_copy0 (obstack, name, prefix_len),
+ obstack);
+ }
+}
+
/* This handles a single symbol from the symbol-file, building symbols
into a GDB symtab. It takes these arguments and an implicit argument.
/* Something is wrong if we see real data before seeing a source
file name. */
- if (last_source_file == NULL && type != (unsigned char) N_SO)
+ if (get_last_source_file () == NULL && type != (unsigned char) N_SO)
{
/* Ignore any symbols which appear before an N_SO symbol.
Currently no one puts symbols there, but we should deal
/* For C++, set the block's scope. */
if (SYMBOL_LANGUAGE (new->name) == language_cplus)
- cp_set_block_scope (new->name, block, &objfile->objfile_obstack,
- "", 0);
+ cp_set_block_scope (new->name, block, &objfile->objfile_obstack);
/* May be switching to an assembler file which may not be using
block relative stabs, so reset the offset. */
/* Relocate for dynamic loading. */
valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
- valu = gdbarch_smash_text_address (gdbarch, valu);
+ valu = gdbarch_addr_bits_remove (gdbarch, valu);
last_function_start = valu;
goto define_a_symbol;
n_opt_found = 0;
- if (last_source_file)
+ if (get_last_source_file ())
{
/* Check if previous symbol was also an N_SO (with some
sanity checks). If so, that one was actually the
&& gdbarch_sofun_address_maybe_missing (gdbarch))
{
CORE_ADDR minsym_valu =
- find_stab_function_addr (name, last_source_file, objfile);
+ find_stab_function_addr (name, get_last_source_file (),
+ objfile);
/* The function find_stab_function_addr will return
0 if the minimal symbol wasn't found.
/* For C++, set the block's scope. */
if (SYMBOL_LANGUAGE (new->name) == language_cplus)
cp_set_block_scope (new->name, block,
- &objfile->objfile_obstack,
- "", 0);
+ &objfile->objfile_obstack);
}
new = push_context (0, valu);
if (strcmp (name, GCC2_COMPILED_FLAG_SYMBOL) == 0)
{
processing_gcc_compilation = 2;
-#if 0 /* Works, but is experimental. -fnf */
- /* For now, stay with AUTO_DEMANGLING for g++ output, as
- we don't know whether it will use the old style or v3
- mangling. */
- if (AUTO_DEMANGLING)
- {
- set_demangling_style (GNU_DEMANGLING_STYLE_STRING);
- }
-#endif
}
else
n_opt_found = 1;
/* There is already a dbx_symfile_info allocated by our caller.
It might even contain some info from the coff symtab to help us. */
- info = objfile->deprecated_sym_stab_info;
+ info = DBX_SYMFILE_INFO (objfile);
DBX_TEXT_ADDR (objfile) = textaddr;
DBX_TEXT_SIZE (objfile) = textsize;
/* There is already a dbx_symfile_info allocated by our caller.
It might even contain some info from the ELF symtab to help us. */
- info = objfile->deprecated_sym_stab_info;
+ info = DBX_SYMFILE_INFO (objfile);
/* Find the first and last text address. dbx_symfile_read seems to
want this. */
asection *stabsect;
asection *stabstrsect;
asection *text_sect;
+ struct dbx_symfile_info *dbx;
stabsect = bfd_get_section_by_name (sym_bfd, stab_name);
stabstrsect = bfd_get_section_by_name (sym_bfd, stabstr_name);
"but not string section (%s)"),
stab_name, stabstr_name);
- objfile->deprecated_sym_stab_info = (struct dbx_symfile_info *)
- xmalloc (sizeof (struct dbx_symfile_info));
- memset (objfile->deprecated_sym_stab_info, 0,
- sizeof (struct dbx_symfile_info));
+ dbx = XCNEW (struct dbx_symfile_info);
+ set_objfile_data (objfile, dbx_objfile_data_key, dbx);
text_sect = bfd_get_section_by_name (sym_bfd, text_name);
if (!text_sect)
default_symfile_segments, /* Get segment information from a file. */
NULL,
default_symfile_relocate, /* Relocate a debug section. */
+ NULL, /* sym_probe_fns */
&psym_functions
};
_initialize_dbxread (void)
{
add_symtab_fns (&aout_sym_fns);
+
+ dbx_objfile_data_key
+ = register_objfile_data_with_cleanup (NULL, dbx_free_symfile_info);
}
projects / deliverable / binutils-gdb.git / blobdiff