mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-12 03:43:33 +08:00
e2882c8578
gdb/ChangeLog: Update copyright year range in all GDB files
722 lines
22 KiB
C
722 lines
22 KiB
C
/* Debug logging for the symbol file functions for the GNU debugger, GDB.
|
||
|
||
Copyright (C) 2013-2018 Free Software Foundation, Inc.
|
||
|
||
Contributed by Cygnus Support, using pieces from other GDB modules.
|
||
|
||
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 3 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, see <http://www.gnu.org/licenses/>. */
|
||
|
||
/* Note: Be careful with functions that can throw errors.
|
||
We want to see a logging message regardless of whether an error was thrown.
|
||
This typically means printing a message before calling the real function
|
||
and then if the function returns a result printing a message after it
|
||
returns. */
|
||
|
||
#include "defs.h"
|
||
#include "gdbcmd.h"
|
||
#include "objfiles.h"
|
||
#include "observer.h"
|
||
#include "source.h"
|
||
#include "symtab.h"
|
||
#include "symfile.h"
|
||
|
||
/* We need to save a pointer to the real symbol functions.
|
||
Plus, the debug versions are malloc'd because we have to NULL out the
|
||
ones that are NULL in the real copy. */
|
||
|
||
struct debug_sym_fns_data
|
||
{
|
||
const struct sym_fns *real_sf;
|
||
struct sym_fns debug_sf;
|
||
};
|
||
|
||
/* We need to record a pointer to the real set of functions for each
|
||
objfile. */
|
||
static const struct objfile_data *symfile_debug_objfile_data_key;
|
||
|
||
/* If non-zero all calls to the symfile functions are logged. */
|
||
static int debug_symfile = 0;
|
||
|
||
/* Return non-zero if symfile debug logging is installed. */
|
||
|
||
static int
|
||
symfile_debug_installed (struct objfile *objfile)
|
||
{
|
||
return (objfile->sf != NULL
|
||
&& objfile_data (objfile, symfile_debug_objfile_data_key) != NULL);
|
||
}
|
||
|
||
/* Utility return the name to print for SYMTAB. */
|
||
|
||
static const char *
|
||
debug_symtab_name (struct symtab *symtab)
|
||
{
|
||
return symtab_to_filename_for_display (symtab);
|
||
}
|
||
|
||
/* Debugging version of struct quick_symbol_functions. */
|
||
|
||
static int
|
||
debug_qf_has_symbols (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
int retval;
|
||
|
||
retval = debug_data->real_sf->qf->has_symbols (objfile);
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->has_symbols (%s) = %d\n",
|
||
objfile_debug_name (objfile), retval);
|
||
|
||
return retval;
|
||
}
|
||
|
||
static struct symtab *
|
||
debug_qf_find_last_source_symtab (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
struct symtab *retval;
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->find_last_source_symtab (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
retval = debug_data->real_sf->qf->find_last_source_symtab (objfile);
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->find_last_source_symtab (...) = %s\n",
|
||
retval ? debug_symtab_name (retval) : "NULL");
|
||
|
||
return retval;
|
||
}
|
||
|
||
static void
|
||
debug_qf_forget_cached_source_info (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->forget_cached_source_info (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->qf->forget_cached_source_info (objfile);
|
||
}
|
||
|
||
static bool
|
||
debug_qf_map_symtabs_matching_filename
|
||
(struct objfile *objfile, const char *name, const char *real_path,
|
||
gdb::function_view<bool (symtab *)> callback)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->map_symtabs_matching_filename (%s, \"%s\", \"%s\", %s)\n",
|
||
objfile_debug_name (objfile), name,
|
||
real_path ? real_path : NULL,
|
||
host_address_to_string (&callback));
|
||
|
||
bool retval = (debug_data->real_sf->qf->map_symtabs_matching_filename
|
||
(objfile, name, real_path, callback));
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->map_symtabs_matching_filename (...) = %d\n",
|
||
retval);
|
||
|
||
return retval;
|
||
}
|
||
|
||
static struct compunit_symtab *
|
||
debug_qf_lookup_symbol (struct objfile *objfile, int kind, const char *name,
|
||
domain_enum domain)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
struct compunit_symtab *retval;
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->lookup_symbol (%s, %d, \"%s\", %s)\n",
|
||
objfile_debug_name (objfile), kind, name,
|
||
domain_name (domain));
|
||
|
||
retval = debug_data->real_sf->qf->lookup_symbol (objfile, kind, name,
|
||
domain);
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->lookup_symbol (...) = %s\n",
|
||
retval
|
||
? debug_symtab_name (compunit_primary_filetab (retval))
|
||
: "NULL");
|
||
|
||
return retval;
|
||
}
|
||
|
||
static void
|
||
debug_qf_print_stats (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->print_stats (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->qf->print_stats (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_qf_dump (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->dump (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->qf->dump (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_qf_relocate (struct objfile *objfile,
|
||
const struct section_offsets *new_offsets,
|
||
const struct section_offsets *delta)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->relocate (%s, %s, %s)\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (new_offsets),
|
||
host_address_to_string (delta));
|
||
|
||
debug_data->real_sf->qf->relocate (objfile, new_offsets, delta);
|
||
}
|
||
|
||
static void
|
||
debug_qf_expand_symtabs_for_function (struct objfile *objfile,
|
||
const char *func_name)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->expand_symtabs_for_function (%s, \"%s\")\n",
|
||
objfile_debug_name (objfile), func_name);
|
||
|
||
debug_data->real_sf->qf->expand_symtabs_for_function (objfile, func_name);
|
||
}
|
||
|
||
static void
|
||
debug_qf_expand_all_symtabs (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "qf->expand_all_symtabs (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->qf->expand_all_symtabs (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_qf_expand_symtabs_with_fullname (struct objfile *objfile,
|
||
const char *fullname)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->expand_symtabs_with_fullname (%s, \"%s\")\n",
|
||
objfile_debug_name (objfile), fullname);
|
||
|
||
debug_data->real_sf->qf->expand_symtabs_with_fullname (objfile, fullname);
|
||
}
|
||
|
||
static void
|
||
debug_qf_map_matching_symbols (struct objfile *objfile,
|
||
const char *name, domain_enum domain,
|
||
int global,
|
||
int (*callback) (struct block *,
|
||
struct symbol *, void *),
|
||
void *data,
|
||
symbol_name_match_type match,
|
||
symbol_compare_ftype *ordered_compare)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->map_matching_symbols (%s, \"%s\", %s, %d, %s, %s, %s, %s)\n",
|
||
objfile_debug_name (objfile), name,
|
||
domain_name (domain), global,
|
||
host_address_to_string (callback),
|
||
host_address_to_string (data),
|
||
plongest ((LONGEST) match),
|
||
host_address_to_string (ordered_compare));
|
||
|
||
debug_data->real_sf->qf->map_matching_symbols (objfile, name,
|
||
domain, global,
|
||
callback, data,
|
||
match,
|
||
ordered_compare);
|
||
}
|
||
|
||
static void
|
||
debug_qf_expand_symtabs_matching
|
||
(struct objfile *objfile,
|
||
gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,
|
||
const lookup_name_info &lookup_name,
|
||
gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher,
|
||
gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify,
|
||
enum search_domain kind)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->expand_symtabs_matching (%s, %s, %s, %s, %s)\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (&file_matcher),
|
||
host_address_to_string (&symbol_matcher),
|
||
host_address_to_string (&expansion_notify),
|
||
search_domain_name (kind));
|
||
|
||
debug_data->real_sf->qf->expand_symtabs_matching (objfile,
|
||
file_matcher,
|
||
lookup_name,
|
||
symbol_matcher,
|
||
expansion_notify,
|
||
kind);
|
||
}
|
||
|
||
static struct compunit_symtab *
|
||
debug_qf_find_pc_sect_compunit_symtab (struct objfile *objfile,
|
||
struct bound_minimal_symbol msymbol,
|
||
CORE_ADDR pc,
|
||
struct obj_section *section,
|
||
int warn_if_readin)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
struct compunit_symtab *retval;
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->find_pc_sect_compunit_symtab (%s, %s, %s, %s, %d)\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (msymbol.minsym),
|
||
hex_string (pc),
|
||
host_address_to_string (section),
|
||
warn_if_readin);
|
||
|
||
retval
|
||
= debug_data->real_sf->qf->find_pc_sect_compunit_symtab (objfile, msymbol,
|
||
pc, section,
|
||
warn_if_readin);
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->find_pc_sect_compunit_symtab (...) = %s\n",
|
||
retval
|
||
? debug_symtab_name (compunit_primary_filetab (retval))
|
||
: "NULL");
|
||
|
||
return retval;
|
||
}
|
||
|
||
static void
|
||
debug_qf_map_symbol_filenames (struct objfile *objfile,
|
||
symbol_filename_ftype *fun, void *data,
|
||
int need_fullname)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->map_symbol_filenames (%s, %s, %s, %d)\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (fun),
|
||
host_address_to_string (data),
|
||
need_fullname);
|
||
|
||
debug_data->real_sf->qf->map_symbol_filenames (objfile, fun, data,
|
||
need_fullname);
|
||
}
|
||
|
||
static struct compunit_symtab *
|
||
debug_qf_find_compunit_symtab_by_address (struct objfile *objfile,
|
||
CORE_ADDR address)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->find_compunit_symtab_by_address (%s, %s)\n",
|
||
objfile_debug_name (objfile),
|
||
hex_string (address));
|
||
|
||
struct compunit_symtab *result = NULL;
|
||
if (debug_data->real_sf->qf->map_symbol_filenames != NULL)
|
||
result
|
||
= debug_data->real_sf->qf->find_compunit_symtab_by_address (objfile,
|
||
address);
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"qf->find_compunit_symtab_by_address (...) = %s\n",
|
||
result
|
||
? debug_symtab_name (compunit_primary_filetab (result))
|
||
: "NULL");
|
||
|
||
return result;
|
||
}
|
||
|
||
static const struct quick_symbol_functions debug_sym_quick_functions =
|
||
{
|
||
debug_qf_has_symbols,
|
||
debug_qf_find_last_source_symtab,
|
||
debug_qf_forget_cached_source_info,
|
||
debug_qf_map_symtabs_matching_filename,
|
||
debug_qf_lookup_symbol,
|
||
debug_qf_print_stats,
|
||
debug_qf_dump,
|
||
debug_qf_relocate,
|
||
debug_qf_expand_symtabs_for_function,
|
||
debug_qf_expand_all_symtabs,
|
||
debug_qf_expand_symtabs_with_fullname,
|
||
debug_qf_map_matching_symbols,
|
||
debug_qf_expand_symtabs_matching,
|
||
debug_qf_find_pc_sect_compunit_symtab,
|
||
debug_qf_find_compunit_symtab_by_address,
|
||
debug_qf_map_symbol_filenames
|
||
};
|
||
|
||
/* Debugging version of struct sym_probe_fns. */
|
||
|
||
static const std::vector<probe *> &
|
||
debug_sym_get_probes (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
const std::vector<probe *> &retval
|
||
= debug_data->real_sf->sym_probe_fns->sym_get_probes (objfile);
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"probes->sym_get_probes (%s) = %s\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (retval.data ()));
|
||
|
||
return retval;
|
||
}
|
||
|
||
static const struct sym_probe_fns debug_sym_probe_fns =
|
||
{
|
||
debug_sym_get_probes,
|
||
};
|
||
|
||
/* Debugging version of struct sym_fns. */
|
||
|
||
static void
|
||
debug_sym_new_init (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_new_init (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_new_init (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_init (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_init (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_init (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_read (struct objfile *objfile, symfile_add_flags symfile_flags)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_read (%s, 0x%x)\n",
|
||
objfile_debug_name (objfile), (unsigned) symfile_flags);
|
||
|
||
debug_data->real_sf->sym_read (objfile, symfile_flags);
|
||
}
|
||
|
||
static void
|
||
debug_sym_read_psymbols (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_read_psymbols (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_read_psymbols (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_finish (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_finish (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_finish (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_offsets (struct objfile *objfile,
|
||
const struct section_addr_info *info)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_offsets (%s, %s)\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (info));
|
||
|
||
debug_data->real_sf->sym_offsets (objfile, info);
|
||
}
|
||
|
||
static struct symfile_segment_data *
|
||
debug_sym_segments (bfd *abfd)
|
||
{
|
||
/* This API function is annoying, it doesn't take a "this" pointer.
|
||
Fortunately it is only used in one place where we (re-)lookup the
|
||
sym_fns table to use. Thus we will never be called. */
|
||
gdb_assert_not_reached ("debug_sym_segments called");
|
||
}
|
||
|
||
static void
|
||
debug_sym_read_linetable (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
fprintf_filtered (gdb_stdlog, "sf->sym_read_linetable (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_read_linetable (objfile);
|
||
}
|
||
|
||
static bfd_byte *
|
||
debug_sym_relocate (struct objfile *objfile, asection *sectp, bfd_byte *buf)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= ((const struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
bfd_byte *retval;
|
||
|
||
retval = debug_data->real_sf->sym_relocate (objfile, sectp, buf);
|
||
|
||
fprintf_filtered (gdb_stdlog,
|
||
"sf->sym_relocate (%s, %s, %s) = %s\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (sectp),
|
||
host_address_to_string (buf),
|
||
host_address_to_string (retval));
|
||
|
||
return retval;
|
||
}
|
||
|
||
/* Template of debugging version of struct sym_fns.
|
||
A copy is made, with sym_flavour updated, and a pointer to the real table
|
||
installed in real_sf, and then a pointer to the copy is installed in the
|
||
objfile. */
|
||
|
||
static const struct sym_fns debug_sym_fns =
|
||
{
|
||
debug_sym_new_init,
|
||
debug_sym_init,
|
||
debug_sym_read,
|
||
debug_sym_read_psymbols,
|
||
debug_sym_finish,
|
||
debug_sym_offsets,
|
||
debug_sym_segments,
|
||
debug_sym_read_linetable,
|
||
debug_sym_relocate,
|
||
&debug_sym_probe_fns,
|
||
&debug_sym_quick_functions
|
||
};
|
||
|
||
/* Free the copy of sym_fns recorded in the registry. */
|
||
|
||
static void
|
||
symfile_debug_free_objfile (struct objfile *objfile, void *datum)
|
||
{
|
||
xfree (datum);
|
||
}
|
||
|
||
/* Install the debugging versions of the symfile functions for OBJFILE.
|
||
Do not call this if the debug versions are already installed. */
|
||
|
||
static void
|
||
install_symfile_debug_logging (struct objfile *objfile)
|
||
{
|
||
const struct sym_fns *real_sf;
|
||
struct debug_sym_fns_data *debug_data;
|
||
|
||
/* The debug versions should not already be installed. */
|
||
gdb_assert (!symfile_debug_installed (objfile));
|
||
|
||
real_sf = objfile->sf;
|
||
|
||
/* Alas we have to preserve NULL entries in REAL_SF. */
|
||
debug_data = XCNEW (struct debug_sym_fns_data);
|
||
|
||
#define COPY_SF_PTR(from, to, name, func) \
|
||
do { \
|
||
if ((from)->name) \
|
||
(to)->debug_sf.name = func; \
|
||
} while (0)
|
||
|
||
COPY_SF_PTR (real_sf, debug_data, sym_new_init, debug_sym_new_init);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_init, debug_sym_init);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_read, debug_sym_read);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_read_psymbols,
|
||
debug_sym_read_psymbols);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_finish, debug_sym_finish);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_offsets, debug_sym_offsets);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_segments, debug_sym_segments);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_read_linetable,
|
||
debug_sym_read_linetable);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_relocate, debug_sym_relocate);
|
||
if (real_sf->sym_probe_fns)
|
||
debug_data->debug_sf.sym_probe_fns = &debug_sym_probe_fns;
|
||
debug_data->debug_sf.qf = &debug_sym_quick_functions;
|
||
|
||
#undef COPY_SF_PTR
|
||
|
||
debug_data->real_sf = real_sf;
|
||
set_objfile_data (objfile, symfile_debug_objfile_data_key, debug_data);
|
||
objfile->sf = &debug_data->debug_sf;
|
||
}
|
||
|
||
/* Uninstall the debugging versions of the symfile functions for OBJFILE.
|
||
Do not call this if the debug versions are not installed. */
|
||
|
||
static void
|
||
uninstall_symfile_debug_logging (struct objfile *objfile)
|
||
{
|
||
struct debug_sym_fns_data *debug_data;
|
||
|
||
/* The debug versions should be currently installed. */
|
||
gdb_assert (symfile_debug_installed (objfile));
|
||
|
||
debug_data = ((struct debug_sym_fns_data *)
|
||
objfile_data (objfile, symfile_debug_objfile_data_key));
|
||
|
||
objfile->sf = debug_data->real_sf;
|
||
xfree (debug_data);
|
||
set_objfile_data (objfile, symfile_debug_objfile_data_key, NULL);
|
||
}
|
||
|
||
/* Call this function to set OBJFILE->SF.
|
||
Do not set OBJFILE->SF directly. */
|
||
|
||
void
|
||
objfile_set_sym_fns (struct objfile *objfile, const struct sym_fns *sf)
|
||
{
|
||
if (symfile_debug_installed (objfile))
|
||
{
|
||
gdb_assert (debug_symfile);
|
||
/* Remove the current one, and reinstall a new one later. */
|
||
uninstall_symfile_debug_logging (objfile);
|
||
}
|
||
|
||
/* Assume debug logging is disabled. */
|
||
objfile->sf = sf;
|
||
|
||
/* Turn debug logging on if enabled. */
|
||
if (debug_symfile)
|
||
install_symfile_debug_logging (objfile);
|
||
}
|
||
|
||
static void
|
||
set_debug_symfile (const char *args, int from_tty, struct cmd_list_element *c)
|
||
{
|
||
struct program_space *pspace;
|
||
struct objfile *objfile;
|
||
|
||
ALL_PSPACES (pspace)
|
||
ALL_PSPACE_OBJFILES (pspace, objfile)
|
||
{
|
||
if (debug_symfile)
|
||
{
|
||
if (!symfile_debug_installed (objfile))
|
||
install_symfile_debug_logging (objfile);
|
||
}
|
||
else
|
||
{
|
||
if (symfile_debug_installed (objfile))
|
||
uninstall_symfile_debug_logging (objfile);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
show_debug_symfile (struct ui_file *file, int from_tty,
|
||
struct cmd_list_element *c, const char *value)
|
||
{
|
||
fprintf_filtered (file, _("Symfile debugging is %s.\n"), value);
|
||
}
|
||
|
||
void
|
||
_initialize_symfile_debug (void)
|
||
{
|
||
symfile_debug_objfile_data_key
|
||
= register_objfile_data_with_cleanup (NULL, symfile_debug_free_objfile);
|
||
|
||
add_setshow_boolean_cmd ("symfile", no_class, &debug_symfile, _("\
|
||
Set debugging of the symfile functions."), _("\
|
||
Show debugging of the symfile functions."), _("\
|
||
When enabled, all calls to the symfile functions are logged."),
|
||
set_debug_symfile, show_debug_symfile,
|
||
&setdebuglist, &showdebuglist);
|
||
|
||
/* Note: We don't need a new-objfile observer because debug logging
|
||
will be installed when objfile init'n calls objfile_set_sym_fns. */
|
||
}
|