3ce82c330b
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168 lines
6.2 KiB
Diff
168 lines
6.2 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Jan Kratochvil <jan.kratochvil@redhat.com>
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Date: Fri, 1 Aug 2014 23:02:17 +0200
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Subject: gdb-vla-intel-stringbt-fix.patch
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;;=push+jan
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http://sourceware.org/ml/gdb-patches/2014-08/msg00025.html
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On Fri, 01 Aug 2014 09:20:19 +0200, Keven Boell wrote:
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> I just tried it on Fedora 20 i686. Applied the patch, you mentioned, on top of
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> the Fortran VLA series and executed your dynamic-other-frame test. Everything
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> is working fine here, I cannot reproduce the crash.
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I have it reproducible on Fedora 20 i686 with plain
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CFLAGS=-g ./configure;make;cd gdb/testsuite;make site.exp;runtest gdb.fortran/dynamic-other-frame.exp
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Besides that I have updated the testcase with
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gdb_test_no_output "set print frame-arguments all"
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so that there is no longer needed the patch:
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[patch] Display Fortran strings in backtraces
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https://sourceware.org/ml/gdb-patches/2014-07/msg00709.html
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The fix below has no regressions for me. Unfortunately I do not see why you
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cannot reproduce it.
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Thanks,
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Jan
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diff --git a/gdb/dwarf2/loc.c b/gdb/dwarf2/loc.c
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--- a/gdb/dwarf2/loc.c
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+++ b/gdb/dwarf2/loc.c
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@@ -2249,6 +2249,20 @@ dwarf2_evaluate_loc_desc_full (struct type *type, struct frame_info *frame,
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ctx.per_cu = per_cu;
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ctx.obj_address = 0;
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+frame_id old_frame_id (get_frame_id (deprecated_safe_get_selected_frame ()));
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+class RestoreCall {
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+private:
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+ const std::function<void ()> func;
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+public:
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+ RestoreCall(std::function<void ()> func_):func(func_) {}
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+ ~RestoreCall() { func(); }
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+} restore_frame([=]() {
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+ frame_info *old_frame (frame_find_by_id (old_frame_id));
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+ if (old_frame != NULL)
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+ select_frame (old_frame);
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+});
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+if (frame != NULL) select_frame (frame);
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+
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scoped_value_mark free_values;
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ctx.gdbarch = per_objfile->objfile->arch ();
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diff --git a/gdb/testsuite/gdb.fortran/dynamic-other-frame-stub.f90 b/gdb/testsuite/gdb.fortran/dynamic-other-frame-stub.f90
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.fortran/dynamic-other-frame-stub.f90
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@@ -0,0 +1,24 @@
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+! Copyright 2010 Free Software Foundation, Inc.
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+!
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+! This program is free software; you can redistribute it and/or modify
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+! it under the terms of the GNU General Public License as published by
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+! the Free Software Foundation; either version 2 of the License, or
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+! (at your option) any later version.
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+!
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+! This program is distributed in the hope that it will be useful,
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+! but WITHOUT ANY WARRANTY; without even the implied warranty of
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+! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+! GNU General Public License for more details.
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+!
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+! You should have received a copy of the GNU General Public License
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+! along with this program; if not, write to the Free Software
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+! Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+!
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+! Ihis file is the Fortran source file for dynamic.exp.
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+! Original file written by Jakub Jelinek <jakub@redhat.com>.
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+! Modified for the GDB testcase by Jan Kratochvil <jan.kratochvil@redhat.com>.
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+
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+subroutine bar
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+ real :: dummy
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+ dummy = 1
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+end subroutine bar
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diff --git a/gdb/testsuite/gdb.fortran/dynamic-other-frame.exp b/gdb/testsuite/gdb.fortran/dynamic-other-frame.exp
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.fortran/dynamic-other-frame.exp
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@@ -0,0 +1,39 @@
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+# Copyright 2010 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+set testfile "dynamic-other-frame"
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+set srcfile1 ${testfile}.f90
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+set srcfile2 ${testfile}-stub.f90
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+set objfile2 [standard_output_file ${testfile}-stub.o]
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+set executable ${testfile}
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+set binfile [standard_output_file ${executable}]
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+
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+if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${objfile2}" object {f90}] != ""
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+ || [gdb_compile "${srcdir}/${subdir}/${srcfile1} ${objfile2}" "${binfile}" executable {debug f90}] != "" } {
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+ untested "Couldn't compile ${srcfile1} or ${srcfile2}"
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+ return -1
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+}
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+
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+clean_restart ${executable}
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+
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+gdb_test_no_output "set print frame-arguments all"
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+
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+if ![runto bar_] then {
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+ perror "couldn't run to bar_"
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+ continue
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+}
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+
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+gdb_test "bt" {foo \(string='hello'.*}
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diff --git a/gdb/testsuite/gdb.fortran/dynamic-other-frame.f90 b/gdb/testsuite/gdb.fortran/dynamic-other-frame.f90
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.fortran/dynamic-other-frame.f90
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@@ -0,0 +1,36 @@
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+! Copyright 2010 Free Software Foundation, Inc.
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+!
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+! This program is free software; you can redistribute it and/or modify
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+! it under the terms of the GNU General Public License as published by
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+! the Free Software Foundation; either version 2 of the License, or
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+! (at your option) any later version.
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+!
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+! This program is distributed in the hope that it will be useful,
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+! but WITHOUT ANY WARRANTY; without even the implied warranty of
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+! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+! GNU General Public License for more details.
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+!
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+! You should have received a copy of the GNU General Public License
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+! along with this program; if not, write to the Free Software
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+! Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+!
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+! Ihis file is the Fortran source file for dynamic.exp.
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+! Original file written by Jakub Jelinek <jakub@redhat.com>.
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+! Modified for the GDB testcase by Jan Kratochvil <jan.kratochvil@redhat.com>.
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+
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+subroutine foo (string)
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+ interface
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+ subroutine bar
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+ end subroutine
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+ end interface
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+ character string*(*)
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+ call bar ! stop-here
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+end subroutine foo
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+program test
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+ interface
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+ subroutine foo (string)
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+ character string*(*)
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+ end subroutine
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+ end interface
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+ call foo ('hello')
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+end
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