public inbox for gdb-cvs@sourceware.org
help / color / mirror / Atom feed
* [binutils-gdb] gdb: Fix toplevel types with -fdebug-types-section
@ 2020-04-28 14:12 Tom de Vries
0 siblings, 0 replies; only message in thread
From: Tom de Vries @ 2020-04-28 14:12 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=770479f223ecd1920dd3cc683b05b24af25c4613
commit 770479f223ecd1920dd3cc683b05b24af25c4613
Author: Mark Williams <mark@myosotissp.com>
Date: Tue Apr 28 16:12:45 2020 +0200
gdb: Fix toplevel types with -fdebug-types-section
When debugging a program compiled with -fdebug-types-section,
only the first top-level type in each file is visible to gdb.
The problem was caused by moving the assignment to list_in_scope
from process_full_comp_unit and process_full_type_unit to
start_symtab. This was fine for process_full_comp_unit, because
symtabs and comp units are one-to-one. But there can be many type
units per symtab (one for each type), and we only call start_symtab
for the first one. This adds the necessary assignments on the paths
where start_symtab is not called.
gdb/Changelog:
2020-04-28 Mark Williams <mark@myosotissp.com>
PR gdb/24480
* dwarf2read.c: Add missing assingments to list_in_scope when
start_symtab was already called.
gdb/testsuite/Changelog:
2020-04-28 Mark Williams <mark@myosotissp.com>
PR gdb/24480
* dw4-toplevel-types.exp: Test for top level types.
* dw4-toplevel-types.cc: Test for top level types.
Diff:
---
gdb/dwarf2/read.c | 2 ++
gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.cc | 21 +++++++++++++++
gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.exp | 36 +++++++++++++++++++++++++
3 files changed, 59 insertions(+)
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index c5528887faf..130c20dbd82 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -10921,6 +10921,7 @@ dwarf2_cu::setup_type_unit_groups (struct die_info *die)
COMPUNIT_DIRNAME (cust),
compunit_language (cust),
0, cust));
+ list_in_scope = get_builder ()->get_file_symbols ();
}
return;
}
@@ -10972,6 +10973,7 @@ dwarf2_cu::setup_type_unit_groups (struct die_info *die)
COMPUNIT_DIRNAME (cust),
compunit_language (cust),
0, cust));
+ list_in_scope = get_builder ()->get_file_symbols ();
auto &file_names = line_header->file_names ();
for (i = 0; i < file_names.size (); ++i)
diff --git a/gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.cc b/gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.cc
new file mode 100644
index 00000000000..c47598c46ef
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.cc
@@ -0,0 +1,21 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2020 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+struct X {} x;
+struct Y {} y;
+struct Z {} z;
+int main() {}
diff --git a/gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.exp b/gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.exp
new file mode 100644
index 00000000000..8e3875ad71e
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw4-toplevel-types.exp
@@ -0,0 +1,36 @@
+# Copyright 2020 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Test dwarf4 signatured types (DW_TAG_type_unit).
+
+standard_testfile .cc
+
+# This test is intended for targets which support DWARF-4.
+# Since we pass an explicit -gdwarf-4 -fdebug-types-section to the compiler,
+# we let that be the test of whether the target supports it.
+
+if { [prepare_for_testing "failed to prepare" "${testfile}" \
+ $srcfile {debug c++ additional_flags=-gdwarf-4 \
+ additional_flags=-fdebug-types-section}] } {
+ return -1
+}
+
+if ![runto_main] {
+ return -1
+}
+
+gdb_test "ptype X" "type = struct X {.*"
+gdb_test "ptype Y" "type = struct Y {.*"
+gdb_test "ptype Z" "type = struct Z {.*"
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2020-04-28 14:12 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-28 14:12 [binutils-gdb] gdb: Fix toplevel types with -fdebug-types-section Tom de Vries
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).