/* Partial symbol tables.
- Copyright (C) 2009-2019 Free Software Foundation, Inc.
+ Copyright (C) 2009-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbtypes.h"
#include "ui-out.h"
#include "command.h"
-#include "readline/readline.h"
+#include "readline/tilde.h"
#include "gdb_regex.h"
#include "dictionary.h"
#include "language.h"
psymtab_storage::~psymtab_storage ()
{
+ partial_symtab *iter = psymtabs;
+ while (iter != nullptr)
+ {
+ partial_symtab *next = iter->next;
+ delete iter;
+ iter = next;
+ }
}
/* See psymtab.h. */
-struct partial_symtab *
-psymtab_storage::allocate_psymtab ()
+void
+psymtab_storage::install_psymtab (partial_symtab *pst)
{
- struct partial_symtab *psymtab;
-
- if (free_psymtabs != nullptr)
- {
- psymtab = free_psymtabs;
- free_psymtabs = psymtab->next;
- }
- else
- psymtab = XOBNEW (obstack (), struct partial_symtab);
-
- memset (psymtab, 0, sizeof (struct partial_symtab));
-
- psymtab->next = psymtabs;
- psymtabs = psymtab;
-
- return psymtab;
+ pst->next = psymtabs;
+ psymtabs = pst;
}
\f
/* See psymtab.h. */
psymtab_storage::partial_symtab_range
-require_partial_symbols (struct objfile *objfile, int verbose)
+require_partial_symbols (struct objfile *objfile, bool verbose)
{
if ((objfile->flags & OBJF_PSYMTABS_READ) == 0)
{
gdb_assert (pst->user == NULL);
/* Don't visit already-expanded psymtabs. */
- if (pst->readin)
+ if (pst->readin_p ())
return 0;
/* This may expand more than one symtab, and we want to iterate over
{
const char *name_basename = lbasename (name);
- for (partial_symtab *pst : require_partial_symbols (objfile, 1))
+ for (partial_symtab *pst : require_partial_symbols (objfile, true))
{
/* We can skip shared psymtabs here, because any file name will be
attached to the unshared psymtab. */
struct obj_section *section,
struct bound_minimal_symbol msymbol)
{
- CORE_ADDR baseaddr = ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile));
-
- /* Try just the PSYMTABS_ADDRMAP mapping first as it has better granularity
- than the later used TEXTLOW/TEXTHIGH one. */
-
- if (objfile->partial_symtabs->psymtabs_addrmap != NULL)
+ /* Try just the PSYMTABS_ADDRMAP mapping first as it has better
+ granularity than the later used TEXTLOW/TEXTHIGH one. However, we need
+ to take care as the PSYMTABS_ADDRMAP can hold things other than partial
+ symtabs in some cases.
+
+ This function should only be called for objfiles that are using partial
+ symtabs, not for objfiles that are using indexes (.gdb_index or
+ .debug_names), however 'maintenance print psymbols' calls this function
+ directly for all objfiles. If we assume that PSYMTABS_ADDRMAP contains
+ partial symtabs then we will end up returning a pointer to an object
+ that is not a partial_symtab, which doesn't end well. */
+
+ if (objfile->partial_symtabs->psymtabs != NULL
+ && objfile->partial_symtabs->psymtabs_addrmap != NULL)
{
+ CORE_ADDR baseaddr = objfile->text_section_offset ();
+
struct partial_symtab *pst
= ((struct partial_symtab *)
addrmap_find (objfile->partial_symtabs->psymtabs_addrmap,
its CUs may be missing in PSYMTABS_ADDRMAP as they may be varying
debug info type in single OBJFILE. */
- for (partial_symtab *pst : require_partial_symbols (objfile, 1))
+ for (partial_symtab *pst : require_partial_symbols (objfile, true))
if (!pst->psymtabs_addrmap_supported
&& pc >= pst->text_low (objfile) && pc < pst->text_high (objfile))
{
msymbol);
if (ps != NULL)
{
- if (warn_if_readin && ps->readin)
+ if (warn_if_readin && ps->readin_p ())
/* Might want to error() here (in case symtab is corrupt and
will cause a core dump), but maybe we can successfully
continue, so let's not. */
(Internal error: pc %s in read in psymtab, but not in symtab.)\n"),
paddress (get_objfile_arch (objfile), pc));
psymtab_to_symtab (objfile, ps);
- return ps->compunit_symtab;
+ return ps->get_compunit_symtab ();
}
return NULL;
}
lookup_name_info lookup_name (name, symbol_name_match_type::FULL);
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
- if (!ps->readin && lookup_partial_symbol (objfile, ps, name,
- psymtab_index, domain))
+ if (!ps->readin_p () && lookup_partial_symbol (objfile, ps, name,
+ psymtab_index, domain))
{
struct symbol *sym, *with_opaque = NULL;
struct compunit_symtab *stab = psymtab_to_symtab (objfile, ps);
psymbol_name_matches (partial_symbol *psym,
const lookup_name_info &lookup_name)
{
- const language_defn *lang = language_def (psym->ginfo.language);
+ const language_defn *lang = language_def (psym->ginfo.language ());
symbol_name_matcher_ftype *name_match
= get_symbol_name_matcher (lang, lookup_name);
- return name_match (symbol_search_name (&psym->ginfo), lookup_name, NULL);
+ return name_match (psym->ginfo.search_name (), lookup_name, NULL);
}
/* Look in PST for a symbol in DOMAIN whose name matches NAME. Search
center = bottom + (top - bottom) / 2;
gdb_assert (center < top);
- enum language lang = (*center)->ginfo.language;
+ enum language lang = (*center)->ginfo.language ();
const char *lang_ln
= name.language_lookup_name (lang).c_str ();
- if (ordered_compare (symbol_search_name (&(*center)->ginfo),
+ if (ordered_compare ((*center)->ginfo.search_name (),
lang_ln) >= 0)
top = center;
else
while (top <= real_top
&& psymbol_name_matches (*top, name))
{
- if (symbol_matches_domain ((*top)->ginfo.language,
+ if (symbol_matches_domain ((*top)->ginfo.language (),
(*top)->domain, domain))
return *top;
top++;
{
for (psym = start; psym < start + length; psym++)
{
- if (symbol_matches_domain ((*psym)->ginfo.language,
+ if (symbol_matches_domain ((*psym)->ginfo.language (),
(*psym)->domain, domain)
&& psymbol_name_matches (*psym, name))
return *psym;
if (!(center < top))
internal_error (__FILE__, __LINE__,
_("failed internal consistency check"));
- if (strcmp_iw_ordered (symbol_search_name (&(*center)->ginfo),
+ if (strcmp_iw_ordered ((*center)->ginfo.search_name (),
search_name.get ()) >= 0)
{
top = center;
while (top <= real_top && symbol_matches_search_name (&(*top)->ginfo,
lookup_name))
{
- if (symbol_matches_domain ((*top)->ginfo.language,
+ if (symbol_matches_domain ((*top)->ginfo.language (),
(*top)->domain, domain))
return *top;
top++;
{
for (psym = start; psym < start + length; psym++)
{
- if (symbol_matches_domain ((*psym)->ginfo.language,
+ if (symbol_matches_domain ((*psym)->ginfo.language (),
(*psym)->domain, domain)
&& symbol_matches_search_name (&(*psym)->ginfo, lookup_name))
return *psym;
pst = pst->user;
/* If it's been looked up before, return it. */
- if (pst->compunit_symtab)
- return pst->compunit_symtab;
+ if (pst->get_compunit_symtab ())
+ return pst->get_compunit_symtab ();
/* If it has not yet been read in, read it. */
- if (!pst->readin)
+ if (!pst->readin_p ())
{
scoped_restore decrementer = increment_reading_symtab ();
- (*pst->read_symtab) (pst, objfile);
+ if (info_verbose)
+ {
+ printf_filtered (_("Reading in symbols for %s..."),
+ pst->filename);
+ gdb_flush (gdb_stdout);
+ }
+
+ pst->read_symtab (objfile);
+
+ /* Finish up the debug error message. */
+ if (info_verbose)
+ printf_filtered (_("done.\n"));
}
- return pst->compunit_symtab;
+ return pst->get_compunit_symtab ();
}
/* Psymtab version of find_last_source_symtab. See its definition in
{
struct partial_symtab *cs_pst = NULL;
- for (partial_symtab *ps : require_partial_symbols (ofp, 1))
+ for (partial_symtab *ps : require_partial_symbols (ofp, true))
{
const char *name = ps->filename;
int len = strlen (name);
if (cs_pst)
{
- if (cs_pst->readin)
+ if (cs_pst->readin_p ())
{
internal_error (__FILE__, __LINE__,
_("select_source_symtab: "
static void
psym_forget_cached_source_info (struct objfile *objfile)
{
- for (partial_symtab *pst : require_partial_symbols (objfile, 1))
+ for (partial_symtab *pst : require_partial_symbols (objfile, true))
{
if (pst->fullname != NULL)
{
while (count-- > 0)
{
QUIT;
- fprintf_filtered (outfile, " `%s'", (*p)->ginfo.name);
- if (symbol_demangled_name (&(*p)->ginfo) != NULL)
+ fprintf_filtered (outfile, " `%s'", (*p)->ginfo.linkage_name ());
+ if ((*p)->ginfo.demangled_name () != NULL)
{
fprintf_filtered (outfile, " `%s'",
- symbol_demangled_name (&(*p)->ginfo));
+ (*p)->ginfo.demangled_name ());
}
fputs_filtered (", ", outfile);
switch ((*p)->domain)
gdb_print_host_address (objfile, outfile);
fprintf_filtered (outfile, ")\n");
- if (psymtab->readin)
+ if (psymtab->readin_p ())
{
fprintf_filtered (outfile,
" Full symtab was read (at ");
- gdb_print_host_address (psymtab->compunit_symtab, outfile);
- fprintf_filtered (outfile, " by function at ");
- gdb_print_host_address (psymtab->read_symtab, outfile);
+ gdb_print_host_address (psymtab->get_compunit_symtab (), outfile);
fprintf_filtered (outfile, ")\n");
}
int i;
i = 0;
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
- if (ps->readin == 0)
+ if (!ps->readin_p ())
i++;
}
printf_filtered (_(" Number of psym tables (not yet expanded): %d\n"), i);
psym_expand_symtabs_for_function (struct objfile *objfile,
const char *func_name)
{
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
- if (ps->readin)
+ if (ps->readin_p ())
continue;
if ((lookup_partial_symbol (objfile, ps, func_name, 1, VAR_DOMAIN)
static void
psym_expand_all_symtabs (struct objfile *objfile)
{
- for (partial_symtab *psymtab : require_partial_symbols (objfile, 1))
+ for (partial_symtab *psymtab : require_partial_symbols (objfile, true))
psymtab_to_symtab (objfile, psymtab);
}
psym_expand_symtabs_with_fullname (struct objfile *objfile,
const char *fullname)
{
- for (partial_symtab *p : require_partial_symbols (objfile, 1))
+ for (partial_symtab *p : require_partial_symbols (objfile, true))
{
/* Anonymous psymtabs don't have a name of a source file. */
if (p->anonymous)
symbol_filename_ftype *fun, void *data,
int need_fullname)
{
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
const char *fullname;
- if (ps->readin)
+ if (ps->readin_p ())
continue;
/* We can skip shared psymtabs here, because any file name will be
{
const int block_kind = global ? GLOBAL_BLOCK : STATIC_BLOCK;
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
QUIT;
- if (ps->readin
+ if (ps->readin_p ()
|| match_partial_symbol (objfile, ps, global, name, domain,
ordered_compare))
{
QUIT;
if ((domain == ALL_DOMAIN
+ || (domain == MODULES_DOMAIN
+ && (*psym)->domain == MODULE_DOMAIN)
|| (domain == VARIABLES_DOMAIN
&& (*psym)->aclass != LOC_TYPEDEF
&& (*psym)->aclass != LOC_BLOCK)
&& (*psym)->aclass == LOC_TYPEDEF))
&& psymbol_name_matches (*psym, lookup_name)
&& (sym_matcher == NULL
- || sym_matcher (symbol_search_name (&(*psym)->ginfo))))
+ || sym_matcher ((*psym)->ginfo.search_name ())))
{
/* Found a match, so notify our caller. */
result = PST_SEARCHED_AND_FOUND;
lookup_name_info lookup_name = lookup_name_in.make_ignore_params ();
/* Clear the search flags. */
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
ps->searched_flag = PST_NOT_SEARCHED;
for (partial_symtab *ps : objfile->psymtabs ())
{
QUIT;
- if (ps->readin)
+ if (ps->readin_p ())
continue;
/* We skip shared psymtabs because file-matching doesn't apply
{
std::set<CORE_ADDR> seen_addrs;
- for (partial_symtab *pst : require_partial_symbols (objfile, 1))
+ for (partial_symtab *pst : require_partial_symbols (objfile, true))
{
psym_fill_psymbol_map (objfile, pst,
&seen_addrs,
std::sort (begin, end, [] (partial_symbol *s1, partial_symbol *s2)
{
- return strcmp_iw_ordered (symbol_search_name (&s1->ginfo),
- symbol_search_name (&s2->ginfo)) < 0;
+ return strcmp_iw_ordered (s1->ginfo.search_name (),
+ s2->ginfo.search_name ()) < 0;
});
}
-/* Allocate and partially fill a partial symtab. It will be
- completely filled at the end of the symbol list.
+/* Partially fill a partial symtab. It will be completely filled at
+ the end of the symbol list. */
- FILENAME is the name of the symbol-file we are reading from. */
-
-struct partial_symtab *
-start_psymtab_common (struct objfile *objfile,
- const char *filename,
- CORE_ADDR textlow)
+partial_symtab::partial_symtab (const char *filename,
+ struct objfile *objfile,
+ CORE_ADDR textlow)
+ : partial_symtab (filename, objfile)
{
- struct partial_symtab *psymtab;
-
- psymtab = allocate_psymtab (filename, objfile);
- psymtab->set_text_low (textlow);
- psymtab->set_text_high (psymtab->raw_text_low ()); /* default */
- psymtab->globals_offset = objfile->partial_symtabs->global_psymbols.size ();
- psymtab->statics_offset = objfile->partial_symtabs->static_psymbols.size ();
- return psymtab;
+ set_text_low (textlow);
+ set_text_high (raw_text_low ()); /* default */
+ globals_offset = objfile->partial_symtabs->global_psymbols.size ();
+ statics_offset = objfile->partial_symtabs->static_psymbols.size ();
}
/* Perform "finishing up" operations of a partial symtab. */
{
unsigned long h = 0;
struct partial_symbol *psymbol = (struct partial_symbol *) addr;
- unsigned int lang = psymbol->ginfo.language;
+ unsigned int lang = psymbol->ginfo.language ();
unsigned int domain = psymbol->domain;
unsigned int theclass = psymbol->aclass;
- h = hash_continue (&psymbol->ginfo.value, sizeof (psymbol->ginfo.value), h);
- h = hash_continue (&lang, sizeof (unsigned int), h);
- h = hash_continue (&domain, sizeof (unsigned int), h);
- h = hash_continue (&theclass, sizeof (unsigned int), h);
- /* Note that psymbol names are interned via symbol_set_names, so
+ h = fast_hash (&psymbol->ginfo.value, sizeof (psymbol->ginfo.value), h);
+ h = fast_hash (&lang, sizeof (unsigned int), h);
+ h = fast_hash (&domain, sizeof (unsigned int), h);
+ h = fast_hash (&theclass, sizeof (unsigned int), h);
+ /* Note that psymbol names are interned via compute_and_set_names, so
there's no need to hash the contents of the name here. */
- h = hash_continue (&psymbol->ginfo.name,
- sizeof (psymbol->ginfo.name), h);
+ h = fast_hash (&psymbol->ginfo.m_name, sizeof (psymbol->ginfo.m_name), h);
return h;
}
return (memcmp (&sym1->ginfo.value, &sym2->ginfo.value,
sizeof (sym1->ginfo.value)) == 0
- && sym1->ginfo.language == sym2->ginfo.language
+ && sym1->ginfo.language () == sym2->ginfo.language ()
&& sym1->domain == sym2->domain
&& sym1->aclass == sym2->aclass
/* Note that psymbol names are interned via
- symbol_set_names, so there's no need to compare the
+ compute_and_set_names, so there's no need to compare the
contents of the name here. */
- && sym1->ginfo.name == sym2->ginfo.name);
+ && sym1->ginfo.linkage_name () == sym2->ginfo.linkage_name ());
}
/* Helper function, initialises partial symbol structure and stashes
different domain (or address) is possible and correct. */
static struct partial_symbol *
-add_psymbol_to_bcache (const char *name, int namelength, bool copy_name,
+add_psymbol_to_bcache (gdb::string_view name, bool copy_name,
domain_enum domain,
enum address_class theclass,
short section,
psymbol.ginfo.section = section;
psymbol.domain = domain;
psymbol.aclass = theclass;
- symbol_set_language (&psymbol.ginfo, language,
- objfile->partial_symtabs->obstack ());
- symbol_set_names (&psymbol.ginfo, name, namelength, copy_name,
- objfile->per_bfd);
+ psymbol.ginfo.set_language (language, objfile->partial_symtabs->obstack ());
+ psymbol.ginfo.compute_and_set_names (name, copy_name, objfile->per_bfd);
/* Stash the partial symbol away in the cache. */
return ((struct partial_symbol *)
OBJSTAT (objfile, n_psyms++);
}
-/* Add a symbol with a long value to a psymtab.
- Since one arg is a struct, we pass in a ptr and deref it (sigh).
- The only value we need to store for psyms is an address.
- For all other psyms pass zero for COREADDR.
- Return the partial symbol that has been added. */
+/* See psympriv.h. */
void
-add_psymbol_to_list (const char *name, int namelength, bool copy_name,
+add_psymbol_to_list (gdb::string_view name, bool copy_name,
domain_enum domain,
enum address_class theclass,
short section,
int added;
/* Stash the partial symbol away in the cache. */
- psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, theclass,
+ psym = add_psymbol_to_bcache (name, copy_name, domain, theclass,
section, coreaddr, language, objfile, &added);
/* Do not duplicate global partial symbols. */
/* See psympriv.h. */
-struct partial_symtab *
-allocate_psymtab (const char *filename, struct objfile *objfile)
+partial_symtab::partial_symtab (const char *filename_, struct objfile *objfile)
+ : searched_flag (PST_NOT_SEARCHED),
+ text_low_valid (0),
+ text_high_valid (0)
{
- struct partial_symtab *psymtab
- = objfile->partial_symtabs->allocate_psymtab ();
+ objfile->partial_symtabs->install_psymtab (this);
- psymtab->filename
- = ((const char *) objfile->per_bfd->filename_cache.insert
- (filename, strlen (filename) + 1));
- psymtab->compunit_symtab = NULL;
+ filename = objfile->intern (filename_);
if (symtab_create_debug)
{
}
fprintf_filtered (gdb_stdlog,
"Created psymtab %s for module %s.\n",
- host_address_to_string (psymtab), filename);
+ host_address_to_string (this), filename);
}
+}
- return psymtab;
+/* See psympriv.h. */
+
+void
+partial_symtab::read_dependencies (struct objfile *objfile)
+{
+ for (int i = 0; i < number_of_dependencies; ++i)
+ {
+ if (!dependencies[i]->readin_p ()
+ && dependencies[i]->user == NULL)
+ {
+ /* Inform about additional files to be read in. */
+ if (info_verbose)
+ {
+ fputs_filtered (" ", gdb_stdout);
+ wrap_here ("");
+ fputs_filtered ("and ", gdb_stdout);
+ wrap_here ("");
+ printf_filtered ("%s...", dependencies[i]->filename);
+ wrap_here (""); /* Flush output */
+ gdb_flush (gdb_stdout);
+ }
+ dependencies[i]->expand_psymtab (objfile);
+ }
+ }
}
+
void
psymtab_storage::discard_psymtab (struct partial_symtab *pst)
{
while ((*prev_pst) != pst)
prev_pst = &((*prev_pst)->next);
(*prev_pst) = pst->next;
-
- /* Next, put it on a free list for recycling. */
-
- pst->next = free_psymtabs;
- free_psymtabs = pst;
+ delete pst;
}
\f
}
else
{
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
int print_for_source = 0;
actually find a symtab whose name matches. */
int printed_objfile_start = 0;
- for (partial_symtab *psymtab : require_partial_symbols (objfile, 1))
+ for (partial_symtab *psymtab : require_partial_symbols (objfile, true))
{
QUIT;
host_address_to_string (psymtab));
printf_filtered (" readin %s\n",
- psymtab->readin ? "yes" : "no");
+ psymtab->readin_p () ? "yes" : "no");
printf_filtered (" fullname %s\n",
psymtab->fullname
? psymtab->fullname : "(null)");
int length;
for (objfile *objfile : current_program_space->objfiles ())
- for (partial_symtab *ps : require_partial_symbols (objfile, 1))
+ for (partial_symtab *ps : require_partial_symbols (objfile, true))
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
/* We don't call psymtab_to_symtab here because that may cause symtab
expansion. When debugging a problem it helps if checkers leave
things unchanged. */
- cust = ps->compunit_symtab;
+ cust = ps->get_compunit_symtab ();
/* First do some checks that don't require the associated symtab. */
if (ps->text_high (objfile) < ps->text_low (objfile))
length = ps->n_static_syms;
while (length--)
{
- sym = block_lookup_symbol (b, symbol_search_name (&(*psym)->ginfo),
+ sym = block_lookup_symbol (b, (*psym)->ginfo.search_name (),
symbol_name_match_type::SEARCH_NAME,
(*psym)->domain);
if (!sym)
{
printf_filtered ("Static symbol `");
- puts_filtered ((*psym)->ginfo.name);
+ puts_filtered ((*psym)->ginfo.linkage_name ());
printf_filtered ("' only found in ");
puts_filtered (ps->filename);
printf_filtered (" psymtab\n");
length = ps->n_global_syms;
while (length--)
{
- sym = block_lookup_symbol (b, symbol_search_name (&(*psym)->ginfo),
+ sym = block_lookup_symbol (b, (*psym)->ginfo.search_name (),
symbol_name_match_type::SEARCH_NAME,
(*psym)->domain);
if (!sym)
{
printf_filtered ("Global symbol `");
- puts_filtered ((*psym)->ginfo.name);
+ puts_filtered ((*psym)->ginfo.linkage_name ());
printf_filtered ("' only found in ");
puts_filtered (ps->filename);
printf_filtered (" psymtab\n");
}
}
+void _initialize_psymtab ();
void
-_initialize_psymtab (void)
+_initialize_psymtab ()
{
add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, _("\
Print dump of current partial symbol definitions.\n\
projects / deliverable / binutils-gdb.git / blobdiff