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authorDoug Evans <dje@google.com>2010-12-08 18:04:08 +0000
committerDoug Evans <dje@google.com>2010-12-08 18:04:08 +0000
commitd4637a04714af3e034b0b3b680980832e9764300 (patch)
tree79c4577f419c29864d3bf3b10fbc03e914846e1d
parent1ef75ecca6ee904e9c312f9941515326c5ef7649 (diff)
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* symfile.h (quick_symbol_functions): Clarify usage of
expand_symtabs_with_filename. * dwarf2read.c (dw2_expand_symtabs_with_filename): Only iterate over comp units, ignore type units.
-rw-r--r--gdb/ChangeLog5
-rw-r--r--gdb/dwarf2read.c9
-rw-r--r--gdb/symfile.h5
3 files changed, 16 insertions, 3 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 17d67af..5b89470 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2010-12-08 Doug Evans <dje@google.com>
+ * symfile.h (quick_symbol_functions): Clarify usage of
+ expand_symtabs_with_filename.
+ * dwarf2read.c (dw2_expand_symtabs_with_filename): Only iterate over
+ comp units, ignore type units.
+
* dwarf2read.c (dw2_expand_symtabs_with_filename): Use FILENAME_CMP.
2010-12-07 Doug Evans <dje@google.com>
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 82cde1b..8801fb1 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -2323,8 +2323,13 @@ dw2_expand_symtabs_with_filename (struct objfile *objfile,
int i;
dw2_setup (objfile);
- for (i = 0; i < (dwarf2_per_objfile->n_comp_units
- + dwarf2_per_objfile->n_type_comp_units); ++i)
+
+ /* We don't need to consider type units here.
+ This is only called for examining code, e.g. expand_line_sal.
+ There can be an order of magnitude (or more) more type units
+ than comp units, and we avoid them if we can. */
+
+ for (i = 0; i < dwarf2_per_objfile->n_comp_units; ++i)
{
int j;
struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
diff --git a/gdb/symfile.h b/gdb/symfile.h
index e989d5c..297c181 100644
--- a/gdb/symfile.h
+++ b/gdb/symfile.h
@@ -209,7 +209,10 @@ struct quick_symbol_functions
void (*expand_all_symtabs) (struct objfile *objfile);
/* Read all symbol tables associated with OBJFILE which have the
- file name FILENAME. */
+ file name FILENAME.
+ This is for the purposes of examining code only, e.g., expand_line_sal.
+ The routine may ignore debug info that is known to not be useful with
+ code, e.g., DW_TAG_type_unit for dwarf debug info. */
void (*expand_symtabs_with_filename) (struct objfile *objfile,
const char *filename);