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* [binutils-gdb] Simplify psym_map_matching_symbols
@ 2019-09-10 14:56 Tom Tromey
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From: Tom Tromey @ 2019-09-10 14:56 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6a3dbf1bc620ae068c84074b2f72e11c24dc1e6d
commit 6a3dbf1bc620ae068c84074b2f72e11c24dc1e6d
Author: Tom Tromey <tromey@adacore.com>
Date: Fri Jul 12 11:00:39 2019 -0600
Simplify psym_map_matching_symbols
This introduces a new helper function,
iterate_over_symbols_terminated, and changes psym_map_matching_symbols
to use it. A subsequent patch will introduce a new user of this
function in the DWARF reader.
gdb/ChangeLog
2019-09-10 Tom Tromey <tromey@adacore.com>
* psymtab.c (map_block): Remove.
(psym_map_matching_symbols): Use iterate_over_symbols_terminated.
* symtab.c (iterate_over_symbols_terminated): New function.
* symtab.c (iterate_over_symbols_terminated): Declare.
Diff:
---
gdb/ChangeLog | 7 +++++++
gdb/psymtab.c | 40 ++++------------------------------------
gdb/symtab.c | 15 +++++++++++++++
gdb/symtab.h | 10 ++++++++++
4 files changed, 36 insertions(+), 36 deletions(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e2ebafe..129aaad 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,12 @@
2019-09-10 Tom Tromey <tromey@adacore.com>
+ * psymtab.c (map_block): Remove.
+ (psym_map_matching_symbols): Use iterate_over_symbols_terminated.
+ * symtab.c (iterate_over_symbols_terminated): New function.
+ * symtab.c (iterate_over_symbols_terminated): Declare.
+
+2019-09-10 Tom Tromey <tromey@adacore.com>
+
* ada-lang.c (ada_iterate_over_symbols): Return bool.
* language.h (struct language_defn) <la_iterate_over_symbols>:
Return bool.
diff --git a/gdb/psymtab.c b/gdb/psymtab.c
index cd577bc..81138bb 100644
--- a/gdb/psymtab.c
+++ b/gdb/psymtab.c
@@ -1168,38 +1168,6 @@ psymtab_to_fullname (struct partial_symtab *ps)
return ps->fullname;
}
-/* For all symbols, s, in BLOCK that are in DOMAIN and match NAME
- according to the function MATCH, call CALLBACK(BLOCK, s, DATA).
- BLOCK is assumed to come from OBJFILE. Returns false iff CALLBACK
- ever returns false, and otherwise returns true. */
-
-static bool
-map_block (const char *name, domain_enum domain, struct objfile *objfile,
- const struct block *block,
- gdb::function_view<symbol_found_callback_ftype> callback,
- symbol_name_match_type match)
-{
- struct block_iterator iter;
- struct symbol *sym;
-
- lookup_name_info lookup_name (name, match);
-
- for (sym = block_iter_match_first (block, lookup_name, &iter);
- sym != NULL;
- sym = block_iter_match_next (lookup_name, &iter))
- {
- if (symbol_matches_domain (SYMBOL_LANGUAGE (sym),
- SYMBOL_DOMAIN (sym), domain))
- {
- struct block_symbol block_sym = {sym, block};
- if (!callback (&block_sym))
- return false;
- }
- }
-
- return true;
-}
-
/* Psymtab version of map_matching_symbols. See its definition in
the definition of quick_symbol_functions in symfile.h. */
@@ -1214,6 +1182,8 @@ psym_map_matching_symbols
{
const int block_kind = global ? GLOBAL_BLOCK : STATIC_BLOCK;
+ lookup_name_info lookup_name (name, match);
+
for (partial_symtab *ps : require_partial_symbols (objfile, 1))
{
QUIT;
@@ -1227,10 +1197,8 @@ psym_map_matching_symbols
if (cust == NULL)
continue;
block = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), block_kind);
- if (!map_block (name, domain, objfile, block, callback, match))
- return;
- struct block_symbol block_sym = {nullptr, block};
- if (!callback (&block_sym))
+ if (!iterate_over_symbols_terminated (block, lookup_name,
+ domain, callback))
return;
}
}
diff --git a/gdb/symtab.c b/gdb/symtab.c
index 5f18445..e1bf369 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -2847,6 +2847,21 @@ iterate_over_symbols (const struct block *block,
return true;
}
+/* See symtab.h. */
+
+bool
+iterate_over_symbols_terminated
+ (const struct block *block,
+ const lookup_name_info &name,
+ const domain_enum domain,
+ gdb::function_view<symbol_found_callback_ftype> callback)
+{
+ if (!iterate_over_symbols (block, name, domain, callback))
+ return false;
+ struct block_symbol block_sym = {nullptr, block};
+ return callback (&block_sym);
+}
+
/* Find the compunit symtab associated with PC and SECTION.
This will read in debug info as necessary. */
diff --git a/gdb/symtab.h b/gdb/symtab.h
index 49feea6..4fb00cb 100644
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -2106,6 +2106,16 @@ bool iterate_over_symbols (const struct block *block,
const domain_enum domain,
gdb::function_view<symbol_found_callback_ftype> callback);
+/* Like iterate_over_symbols, but if all calls to CALLBACK return
+ true, then calls CALLBACK one additional time with a block_symbol
+ that has a valid block but a NULL symbol. */
+
+bool iterate_over_symbols_terminated
+ (const struct block *block,
+ const lookup_name_info &name,
+ const domain_enum domain,
+ gdb::function_view<symbol_found_callback_ftype> callback);
+
/* Storage type used by demangle_for_lookup. demangle_for_lookup
either returns a const char * pointer that points to either of the
fields of this type, or a pointer to the input NAME. This is done
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