[1/2] Remove casts from dwarf2/index-write.c
Commit Message
dwarf2/index-write.c casts pointers to "dwarf2_psymtab *", but as far
as I can tell, it does not actually use any DWARF-specific fields of
the psymtab. So, this patch changes this code to use partial_symtab
instead. This removes nearly every cast, leaving just the unavoidable
one from addrmap iteration.
gdb/ChangeLog
2020-02-25 Tom Tromey <tom@tromey.com>
* dwarf2/index-write.c (psym_index_map): Change type.
(add_address_entry_worker, write_one_signatured_type)
(recursively_count_psymbols, recursively_write_psymbols)
(class debug_names, psyms_seen_size, write_gdbindex)
(write_debug_names): Use partial_symtab, not dwarf2_psymtab.
---
gdb/ChangeLog | 8 ++++++++
gdb/dwarf2/index-write.c | 26 +++++++++++++-------------
2 files changed, 21 insertions(+), 13 deletions(-)
Comments
On 2020-02-25 8:09 a.m., Tom Tromey wrote:
> dwarf2/index-write.c casts pointers to "dwarf2_psymtab *", but as far
> as I can tell, it does not actually use any DWARF-specific fields of
> the psymtab. So, this patch changes this code to use partial_symtab
> instead. This removes nearly every cast, leaving just the unavoidable
> one from addrmap iteration.
Thanks, that LGTM.
Simon
@@ -399,7 +399,7 @@ write_hash_table (mapped_symtab *symtab, data_buf &output, data_buf &cpool)
}
}
-typedef std::unordered_map<dwarf2_psymtab *, unsigned int> psym_index_map;
+typedef std::unordered_map<partial_symtab *, unsigned int> psym_index_map;
/* Helper struct for building the address table. */
struct addrmap_index_data
@@ -439,7 +439,7 @@ static int
add_address_entry_worker (void *datap, CORE_ADDR start_addr, void *obj)
{
struct addrmap_index_data *data = (struct addrmap_index_data *) datap;
- dwarf2_psymtab *pst = (dwarf2_psymtab *) obj;
+ partial_symtab *pst = (partial_symtab *) obj;
if (data->previous_valid)
add_address_entry (data->objfile, data->addr_vec,
@@ -582,7 +582,7 @@ write_one_signatured_type (void **slot, void *d)
struct signatured_type_index_data *info
= (struct signatured_type_index_data *) d;
struct signatured_type *entry = (struct signatured_type *) *slot;
- dwarf2_psymtab *psymtab = entry->per_cu.v.psymtab;
+ partial_symtab *psymtab = entry->per_cu.v.psymtab;
write_psymbols (info->symtab,
info->psyms_seen,
@@ -612,12 +612,12 @@ write_one_signatured_type (void **slot, void *d)
if they appeared in this psymtab. */
static void
-recursively_count_psymbols (dwarf2_psymtab *psymtab,
+recursively_count_psymbols (partial_symtab *psymtab,
size_t &psyms_seen)
{
for (int i = 0; i < psymtab->number_of_dependencies; ++i)
if (psymtab->dependencies[i]->user != NULL)
- recursively_count_psymbols ((dwarf2_psymtab *) psymtab->dependencies[i],
+ recursively_count_psymbols (psymtab->dependencies[i],
psyms_seen);
psyms_seen += psymtab->n_global_syms;
@@ -629,7 +629,7 @@ recursively_count_psymbols (dwarf2_psymtab *psymtab,
static void
recursively_write_psymbols (struct objfile *objfile,
- dwarf2_psymtab *psymtab,
+ partial_symtab *psymtab,
struct mapped_symtab *symtab,
std::unordered_set<partial_symbol *> &psyms_seen,
offset_type cu_index)
@@ -639,7 +639,7 @@ recursively_write_psymbols (struct objfile *objfile,
for (i = 0; i < psymtab->number_of_dependencies; ++i)
if (psymtab->dependencies[i]->user != NULL)
recursively_write_psymbols (objfile,
- (dwarf2_psymtab *) psymtab->dependencies[i],
+ psymtab->dependencies[i],
symtab, psyms_seen, cu_index);
write_psymbols (symtab,
@@ -869,14 +869,14 @@ public:
as if they appeared in this psymtab. */
void recursively_write_psymbols
(struct objfile *objfile,
- dwarf2_psymtab *psymtab,
+ partial_symtab *psymtab,
std::unordered_set<partial_symbol *> &psyms_seen,
int cu_index)
{
for (int i = 0; i < psymtab->number_of_dependencies; ++i)
if (psymtab->dependencies[i]->user != NULL)
recursively_write_psymbols
- (objfile, (dwarf2_psymtab *) psymtab->dependencies[i], psyms_seen, cu_index);
+ (objfile, psymtab->dependencies[i], psyms_seen, cu_index);
write_psymbols (psyms_seen,
(objfile->partial_symtabs->global_psymbols.data ()
@@ -1234,7 +1234,7 @@ private:
write_one_signatured_type (struct signatured_type *entry,
struct signatured_type_index_data *info)
{
- dwarf2_psymtab *psymtab = entry->per_cu.v.psymtab;
+ partial_symtab *psymtab = entry->per_cu.v.psymtab;
write_psymbols (info->psyms_seen,
(info->objfile->partial_symtabs->global_psymbols.data ()
@@ -1320,7 +1320,7 @@ psyms_seen_size (struct dwarf2_per_objfile *dwarf2_per_objfile)
size_t psyms_count = 0;
for (dwarf2_per_cu_data *per_cu : dwarf2_per_objfile->all_comp_units)
{
- dwarf2_psymtab *psymtab = per_cu->v.psymtab;
+ partial_symtab *psymtab = per_cu->v.psymtab;
if (psymtab != NULL && psymtab->user == NULL)
recursively_count_psymbols (psymtab, psyms_count);
@@ -1423,7 +1423,7 @@ write_gdbindex (struct dwarf2_per_objfile *dwarf2_per_objfile, FILE *out_file,
{
struct dwarf2_per_cu_data *per_cu
= dwarf2_per_objfile->all_comp_units[i];
- dwarf2_psymtab *psymtab = per_cu->v.psymtab;
+ partial_symtab *psymtab = per_cu->v.psymtab;
/* CU of a shared file from 'dwz -m' may be unused by this main file.
It may be referenced from a local scope but in such case it does not
@@ -1508,7 +1508,7 @@ write_debug_names (struct dwarf2_per_objfile *dwarf2_per_objfile,
for (int i = 0; i < dwarf2_per_objfile->all_comp_units.size (); ++i)
{
const dwarf2_per_cu_data *per_cu = dwarf2_per_objfile->all_comp_units[i];
- dwarf2_psymtab *psymtab = per_cu->v.psymtab;
+ partial_symtab *psymtab = per_cu->v.psymtab;
/* CU of a shared file from 'dwz -m' may be unused by this main
file. It may be referenced from a local scope but in such