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gdb/dwarf: track compilation and type unit count

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A subsequent commit will remove the all_comp_units and all_type_units
array views, since it's not possible to assume that that all_units
vector is segmented between comp and type units.  Some callers still
need to know the number of each kind, so track that separately.

Change-Id: I712fbdfbf10b333c431b688b881cc0987e74f688
Approved-By: Tom Tromey <tom@tromey.com>
This commit is contained in:
Simon Marchi
2025-07-09 11:35:08 -04:00
parent e443ffcf79
commit bedd6a7a44
2 changed files with 12 additions and 8 deletions
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15
gdb/dwarf2/read.c
View File

@@ -1690,6 +1690,7 @@ dwarf2_per_bfd::allocate_per_cu (dwarf2_section_info *section,
dwarf2_per_cu_up result (new dwarf2_per_cu (this, section, sect_off,
length, is_dwz));
result->index = all_units.size ();
this->num_comp_units++;
return result;
}
@@ -1706,7 +1707,7 @@ dwarf2_per_bfd::allocate_signatured_type (dwarf2_section_info *section,
= std::make_unique<signatured_type> (this, section, sect_off, length,
is_dwz, signature);
result->index = all_units.size ();
tu_stats.nr_tus++;
this->num_type_units++;
return result;
}
@@ -3212,10 +3213,11 @@ private:
void print_tu_stats (dwarf2_per_objfile *per_objfile)
{
struct tu_stats *tu_stats = &per_objfile->per_bfd->tu_stats;
dwarf2_per_bfd *per_bfd = per_objfile->per_bfd;
tu_stats *tu_stats = &per_bfd->tu_stats;
dwarf_read_debug_printf ("Type unit statistics:");
dwarf_read_debug_printf (" %d TUs", tu_stats->nr_tus);
dwarf_read_debug_printf (" %d TUs", per_bfd->num_type_units);
dwarf_read_debug_printf (" %d uniq abbrev tables",
tu_stats->nr_uniq_abbrev_tables);
dwarf_read_debug_printf (" %d symtabs from stmt_list entries",
@@ -3649,11 +3651,10 @@ read_comp_units_from_section (dwarf2_per_objfile *per_objfile,
void
finalize_all_units (dwarf2_per_bfd *per_bfd)
{
size_t nr_tus = per_bfd->tu_stats.nr_tus;
size_t nr_cus = per_bfd->all_units.size () - nr_tus;
gdb::array_view<dwarf2_per_cu_up> tmp = per_bfd->all_units;
per_bfd->all_comp_units = tmp.slice (0, nr_cus);
per_bfd->all_type_units = tmp.slice (nr_cus, nr_tus);
per_bfd->all_comp_units = tmp.slice (0, per_bfd->num_comp_units);
per_bfd->all_type_units
= tmp.slice (per_bfd->num_comp_units, per_bfd->num_type_units);
}
/* See read.h. */

5
gdb/dwarf2/read.h
View File

@@ -47,7 +47,6 @@ struct tu_stats
int nr_symtab_sharers = 0;
int nr_stmt_less_type_units = 0;
int nr_all_type_units_reallocs = 0;
int nr_tus = 0;
};
struct abbrev_table_cache;
@@ -624,6 +623,10 @@ public:
gdb::array_view<dwarf2_per_cu_up> all_comp_units;
gdb::array_view<dwarf2_per_cu_up> all_type_units;
/* Number of compilation and type units in the ALL_UNITS vector. */
unsigned int num_comp_units = 0;
unsigned int num_type_units = 0;
std::vector<dwarf2_per_cu *> all_comp_units_index_cus;
std::vector<dwarf2_per_cu *> all_comp_units_index_tus;