/* Do various things to symbol tables (other than lookup), for GDB.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007, 2008, 2009, 2010,
- 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "symtab.h"
#include "gdbtypes.h"
#include "bfd.h"
+#include "filenames.h"
#include "symfile.h"
#include "objfiles.h"
#include "breakpoint.h"
#include "bcache.h"
#include "block.h"
#include "gdb_regex.h"
-#include "gdb_stat.h"
+#include <sys/stat.h>
#include "dictionary.h"
+#include "typeprint.h"
+#include "gdbcmd.h"
+#include "source.h"
-#include "gdb_string.h"
+#include <string.h>
#include "readline/readline.h"
#include "psymtab.h"
/* Prototypes for local functions */
-static void dump_symtab (struct objfile *, struct symtab *,
- struct ui_file *);
-
-static void dump_msymbols (struct objfile *, struct ui_file *);
-
-static void dump_objfile (struct objfile *);
-
static int block_depth (struct block *);
void _initialize_symmisc (void);
static int print_symbol (void *);
\f
-/* Free all the storage associated with the struct symtab <- S.
- Note that some symtabs have contents that all live inside one big block of
- memory, and some share the contents of another symbol table and so you
- should not free the contents on their behalf (except sometimes the
- linetable, which maybe per symtab even when the rest is not).
- It is s->free_code that says which alternative to use. */
-
-void
-free_symtab (struct symtab *s)
-{
- switch (s->free_code)
- {
- case free_nothing:
- /* All the contents are part of a big block of memory (an obstack),
- and some other symtab is in charge of freeing that block.
- Therefore, do nothing. */
- break;
-
- case free_linetable:
- /* Everything will be freed either by our `free_func'
- or by some other symtab, except for our linetable.
- Free that now. */
- if (LINETABLE (s))
- xfree (LINETABLE (s));
- break;
- }
-
- /* If there is a single block of memory to free, free it. */
- if (s->free_func != NULL)
- s->free_func (s);
-
- /* Free source-related stuff. */
- if (s->line_charpos != NULL)
- xfree (s->line_charpos);
- if (s->fullname != NULL)
- xfree (s->fullname);
- if (s->debugformat != NULL)
- xfree (s->debugformat);
- xfree (s);
-}
void
print_symbol_bcache_statistics (void)
struct program_space *pspace;
struct objfile *objfile;
- immediate_quit++;
ALL_PSPACES (pspace)
ALL_PSPACE_OBJFILES (pspace, objfile)
{
- printf_filtered (_("Byte cache statistics for '%s':\n"), objfile->name);
+ QUIT;
+ printf_filtered (_("Byte cache statistics for '%s':\n"),
+ objfile_name (objfile));
print_bcache_statistics (psymbol_bcache_get_bcache (objfile->psymbol_cache),
"partial symbol cache");
- print_bcache_statistics (objfile->macro_cache, "preprocessor macro cache");
- print_bcache_statistics (objfile->filename_cache, "file name cache");
+ print_bcache_statistics (objfile->per_bfd->macro_cache,
+ "preprocessor macro cache");
+ print_bcache_statistics (objfile->per_bfd->filename_cache,
+ "file name cache");
}
- immediate_quit--;
}
void
struct symtab *s;
int i, linetables, blockvectors;
- immediate_quit++;
ALL_PSPACES (pspace)
ALL_PSPACE_OBJFILES (pspace, objfile)
{
- printf_filtered (_("Statistics for '%s':\n"), objfile->name);
+ QUIT;
+ printf_filtered (_("Statistics for '%s':\n"), objfile_name (objfile));
if (OBJSTAT (objfile, n_stabs) > 0)
printf_filtered (_(" Number of \"stab\" symbols read: %d\n"),
OBJSTAT (objfile, n_stabs));
OBJSTAT (objfile, sz_strtab));
printf_filtered (_(" Total memory used for objfile obstack: %d\n"),
obstack_memory_used (&objfile->objfile_obstack));
+ printf_filtered (_(" Total memory used for BFD obstack: %d\n"),
+ obstack_memory_used (&objfile->per_bfd->storage_obstack));
printf_filtered (_(" Total memory used for psymbol cache: %d\n"),
bcache_memory_used (psymbol_bcache_get_bcache
(objfile->psymbol_cache)));
printf_filtered (_(" Total memory used for macro cache: %d\n"),
- bcache_memory_used (objfile->macro_cache));
+ bcache_memory_used (objfile->per_bfd->macro_cache));
printf_filtered (_(" Total memory used for file name cache: %d\n"),
- bcache_memory_used (objfile->filename_cache));
+ bcache_memory_used (objfile->per_bfd->filename_cache));
}
- immediate_quit--;
}
static void
{
struct symtab *symtab;
- printf_filtered ("\nObject file %s: ", objfile->name);
+ printf_filtered ("\nObject file %s: ", objfile_name (objfile));
printf_filtered ("Objfile at ");
gdb_print_host_address (objfile, gdb_stdout);
printf_filtered (", bfd at ");
symtab != NULL;
symtab = symtab->next)
{
- printf_filtered ("%s at ", symtab->filename);
+ printf_filtered ("%s at ", symtab_to_filename_for_display (symtab));
gdb_print_host_address (symtab, gdb_stdout);
printf_filtered (", ");
if (symtab->objfile != objfile)
int index;
char ms_type;
- fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
+ fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile_name (objfile));
if (objfile->minimal_symbol_count == 0)
{
fprintf_filtered (outfile, "No minimal symbols found.\n");
index = 0;
ALL_OBJFILE_MSYMBOLS (objfile, msymbol)
{
- struct obj_section *section = SYMBOL_OBJ_SECTION (msymbol);
+ struct obj_section *section = SYMBOL_OBJ_SECTION (objfile, msymbol);
switch (MSYMBOL_TYPE (msymbol))
{
case mst_text:
ms_type = 'T';
break;
+ case mst_text_gnu_ifunc:
+ ms_type = 'i';
+ break;
case mst_solib_trampoline:
ms_type = 'S';
break;
outfile);
fprintf_filtered (outfile, " %s", SYMBOL_LINKAGE_NAME (msymbol));
if (section)
- fprintf_filtered (outfile, " section %s",
- bfd_section_name (objfile->obfd,
- section->the_bfd_section));
+ {
+ if (section->the_bfd_section != NULL)
+ fprintf_filtered (outfile, " section %s",
+ bfd_section_name (objfile->obfd,
+ section->the_bfd_section));
+ else
+ fprintf_filtered (outfile, " spurious section %ld",
+ (long) (section - objfile->sections));
+ }
if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
{
fprintf_filtered (outfile, " %s", SYMBOL_DEMANGLED_NAME (msymbol));
struct block *b;
int depth;
- fprintf_filtered (outfile, "\nSymtab for file %s\n", symtab->filename);
+ fprintf_filtered (outfile, "\nSymtab for file %s\n",
+ symtab_to_filename_for_display (symtab));
if (symtab->dirname)
fprintf_filtered (outfile, "Compilation directory is %s\n",
symtab->dirname);
- fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
+ fprintf_filtered (outfile, "Read from object file %s (",
+ objfile_name (objfile));
gdb_print_host_address (objfile, outfile);
fprintf_filtered (outfile, ")\n");
fprintf_filtered (outfile, "Language: %s\n",
}
fprintf_filtered (outfile, "\n");
/* Now print each symbol in this block (in no particular order, if
- we're using a hashtable). */
- ALL_BLOCK_SYMBOLS (b, iter, sym)
+ we're using a hashtable). Note that we only want this
+ block, not any blocks from included symtabs. */
+ ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym)
{
struct print_symbol_args s;
dump_symtab_1 (objfile, symtab, outfile);
}
-void
+static void
maintenance_print_symbols (char *args, int from_tty)
{
char **argv;
perror_with_name (filename);
make_cleanup_ui_file_delete (outfile);
- immediate_quit++;
ALL_SYMTABS (objfile, s)
- if (symname == NULL || strcmp (symname, s->filename) == 0)
- dump_symtab (objfile, s, outfile);
- immediate_quit--;
+ {
+ QUIT;
+ if (symname == NULL
+ || filename_cmp (symname, symtab_to_filename_for_display (s)) == 0)
+ dump_symtab (objfile, s, outfile);
+ }
do_cleanups (cleanups);
}
struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
int depth = ((struct print_symbol_args *) args)->depth;
struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
- struct obj_section *section = SYMBOL_OBJ_SECTION (symbol);
+ struct obj_section *section = SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (symbol),
+ symbol);
print_spaces (depth, outfile);
if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
{
if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
{
- LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
+ LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
+ &type_print_raw_options);
}
else
{
: (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
? "struct" : "union")),
SYMBOL_LINKAGE_NAME (symbol));
- LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
+ LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
+ &type_print_raw_options);
}
fprintf_filtered (outfile, ";\n");
}
LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_PRINT_NAME (symbol),
outfile,
TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
- depth);
+ depth,
+ &type_print_raw_options);
fprintf_filtered (outfile, "; ");
}
else
switch (SYMBOL_CLASS (symbol))
{
case LOC_CONST:
- fprintf_filtered (outfile, "const %ld (0x%lx)",
- SYMBOL_VALUE (symbol),
- SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "const %s (%s)",
+ plongest (SYMBOL_VALUE (symbol)),
+ hex_string (SYMBOL_VALUE (symbol)));
break;
case LOC_CONST_BYTES:
case LOC_REGISTER:
if (SYMBOL_IS_ARGUMENT (symbol))
- fprintf_filtered (outfile, "parameter register %ld",
- SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "parameter register %s",
+ plongest (SYMBOL_VALUE (symbol)));
else
- fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "register %s",
+ plongest (SYMBOL_VALUE (symbol)));
break;
case LOC_ARG:
- fprintf_filtered (outfile, "arg at offset 0x%lx",
- SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "arg at offset %s",
+ hex_string (SYMBOL_VALUE (symbol)));
break;
case LOC_REF_ARG:
- fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "reference arg at %s",
+ hex_string (SYMBOL_VALUE (symbol)));
break;
case LOC_REGPARM_ADDR:
- fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "address parameter register %s",
+ plongest (SYMBOL_VALUE (symbol)));
break;
case LOC_LOCAL:
- fprintf_filtered (outfile, "local at offset 0x%lx",
- SYMBOL_VALUE (symbol));
+ fprintf_filtered (outfile, "local at offset %s",
+ hex_string (SYMBOL_VALUE (symbol)));
break;
case LOC_TYPEDEF:
return 1;
}
-void
+static void
maintenance_print_msymbols (char *args, int from_tty)
{
char **argv;
/* If a second arg is supplied, it is a source file name to match on. */
if (argv[1] != NULL)
{
- symname = xfullpath (argv[1]);
+ symname = gdb_realpath (argv[1]);
make_cleanup (xfree, symname);
if (symname && stat (symname, &sym_st))
perror_with_name (symname);
perror_with_name (filename);
make_cleanup_ui_file_delete (outfile);
- immediate_quit++;
ALL_PSPACES (pspace)
ALL_PSPACE_OBJFILES (pspace, objfile)
- if (symname == NULL || (!stat (objfile->name, &obj_st)
- && sym_st.st_ino == obj_st.st_ino))
- dump_msymbols (objfile, outfile);
- immediate_quit--;
+ {
+ QUIT;
+ if (symname == NULL || (!stat (objfile_name (objfile), &obj_st)
+ && sym_st.st_dev == obj_st.st_dev
+ && sym_st.st_ino == obj_st.st_ino))
+ dump_msymbols (objfile, outfile);
+ }
fprintf_filtered (outfile, "\n\n");
do_cleanups (cleanups);
}
-void
-maintenance_print_objfiles (char *ignore, int from_tty)
+static void
+maintenance_print_objfiles (char *regexp, int from_tty)
{
struct program_space *pspace;
struct objfile *objfile;
dont_repeat ();
- immediate_quit++;
+ if (regexp)
+ re_comp (regexp);
+
ALL_PSPACES (pspace)
ALL_PSPACE_OBJFILES (pspace, objfile)
- dump_objfile (objfile);
- immediate_quit--;
+ {
+ QUIT;
+ if (! regexp
+ || re_exec (objfile_name (objfile)))
+ dump_objfile (objfile);
+ }
}
-
/* List all the symbol tables whose names match REGEXP (optional). */
-void
+
+static void
maintenance_info_symtabs (char *regexp, int from_tty)
{
struct program_space *pspace;
struct objfile *objfile;
+ dont_repeat ();
+
if (regexp)
re_comp (regexp);
QUIT;
if (! regexp
- || re_exec (symtab->filename))
+ || re_exec (symtab_to_filename_for_display (symtab)))
{
if (! printed_objfile_start)
{
- printf_filtered ("{ objfile %s ", objfile->name);
+ printf_filtered ("{ objfile %s ", objfile_name (objfile));
wrap_here (" ");
printf_filtered ("((struct objfile *) %s)\n",
host_address_to_string (objfile));
printed_objfile_start = 1;
}
- printf_filtered (" { symtab %s ", symtab->filename);
+ printf_filtered (" { symtab %s ",
+ symtab_to_filename_for_display (symtab));
wrap_here (" ");
printf_filtered ("((struct symtab *) %s)\n",
host_address_to_string (symtab));
printf_filtered ("}\n");
}
}
+
+/* Check consistency of symtabs.
+ An example of what this checks for is NULL blockvectors.
+ They can happen if there's a bug during debug info reading.
+ GDB assumes they are always non-NULL.
+
+ Note: This does not check for psymtab vs symtab consistency.
+ Use "maint check-psymtabs" for that. */
+
+static void
+maintenance_check_symtabs (char *ignore, int from_tty)
+{
+ struct program_space *pspace;
+ struct objfile *objfile;
+
+ ALL_PSPACES (pspace)
+ ALL_PSPACE_OBJFILES (pspace, objfile)
+ {
+ struct symtab *symtab;
+
+ /* We don't want to print anything for this objfile until we
+ actually find something worth printing. */
+ int printed_objfile_start = 0;
+
+ ALL_OBJFILE_SYMTABS (objfile, symtab)
+ {
+ int found_something = 0;
+
+ QUIT;
+
+ if (symtab->blockvector == NULL)
+ found_something = 1;
+ /* Add more checks here. */
+
+ if (found_something)
+ {
+ if (! printed_objfile_start)
+ {
+ printf_filtered ("{ objfile %s ", objfile_name (objfile));
+ wrap_here (" ");
+ printf_filtered ("((struct objfile *) %s)\n",
+ host_address_to_string (objfile));
+ printed_objfile_start = 1;
+ }
+ printf_filtered (" { symtab %s\n",
+ symtab_to_filename_for_display (symtab));
+ if (symtab->blockvector == NULL)
+ printf_filtered (" NULL blockvector\n");
+ printf_filtered (" }\n");
+ }
+ }
+
+ if (printed_objfile_start)
+ printf_filtered ("}\n");
+ }
+}
+
+/* Helper function for maintenance_expand_symtabs.
+ This is the name_matcher function for expand_symtabs_matching. */
+
+static int
+maintenance_expand_name_matcher (const char *symname, void *data)
+{
+ /* Since we're not searching on symbols, just return TRUE. */
+ return 1;
+}
+
+/* Helper function for maintenance_expand_symtabs.
+ This is the file_matcher function for expand_symtabs_matching. */
+
+static int
+maintenance_expand_file_matcher (const char *filename, void *data,
+ int basenames)
+{
+ const char *regexp = data;
+
+ QUIT;
+
+ /* KISS: Only apply the regexp to the complete file name. */
+ if (basenames)
+ return 0;
+
+ if (regexp == NULL || re_exec (filename))
+ return 1;
+
+ return 0;
+}
+
+/* Expand all symbol tables whose name matches an optional regexp. */
+
+static void
+maintenance_expand_symtabs (char *args, int from_tty)
+{
+ struct program_space *pspace;
+ struct objfile *objfile;
+ struct cleanup *cleanups;
+ char **argv;
+ char *regexp = NULL;
+
+ /* We use buildargv here so that we handle spaces in the regexp
+ in a way that allows adding more arguments later. */
+ argv = gdb_buildargv (args);
+ cleanups = make_cleanup_freeargv (argv);
+
+ if (argv != NULL)
+ {
+ if (argv[0] != NULL)
+ {
+ regexp = argv[0];
+ if (argv[1] != NULL)
+ error (_("Extra arguments after regexp."));
+ }
+ }
+
+ if (regexp)
+ re_comp (regexp);
+
+ ALL_PSPACES (pspace)
+ ALL_PSPACE_OBJFILES (pspace, objfile)
+ {
+ if (objfile->sf)
+ {
+ objfile->sf->qf->expand_symtabs_matching
+ (objfile, maintenance_expand_file_matcher,
+ maintenance_expand_name_matcher, ALL_DOMAIN, regexp);
+ }
+ }
+
+ do_cleanups (cleanups);
+}
\f
/* Return the nexting depth of a block within other blocks in its symtab. */
\f
/* Do early runtime initializations. */
+
void
_initialize_symmisc (void)
{
std_in = stdin;
std_out = stdout;
std_err = stderr;
+
+ add_cmd ("symbols", class_maintenance, maintenance_print_symbols, _("\
+Print dump of current symbol definitions.\n\
+Entries in the full symbol table are dumped to file OUTFILE.\n\
+If a SOURCE file is specified, dump only that file's symbols."),
+ &maintenanceprintlist);
+
+ add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, _("\
+Print dump of current minimal symbol definitions.\n\
+Entries in the minimal symbol table are dumped to file OUTFILE.\n\
+If a SOURCE file is specified, dump only that file's minimal symbols."),
+ &maintenanceprintlist);
+
+ add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles,
+ _("Print dump of current object file definitions.\n\
+With an argument REGEXP, list the object files with matching names."),
+ &maintenanceprintlist);
+
+ add_cmd ("symtabs", class_maintenance, maintenance_info_symtabs, _("\
+List the full symbol tables for all object files.\n\
+This does not include information about individual symbols, blocks, or\n\
+linetables --- just the symbol table structures themselves.\n\
+With an argument REGEXP, list the symbol tables with matching names."),
+ &maintenanceinfolist);
+
+ add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs,
+ _("\
+Check consistency of currently expanded symtabs."),
+ &maintenancelist);
+
+ add_cmd ("expand-symtabs", class_maintenance, maintenance_expand_symtabs,
+ _("Expand symbol tables.\n\
+With an argument REGEXP, only expand the symbol tables with matching names."),
+ &maintenancelist);
}