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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Sergio Durigan Junior <sergiodj@redhat.com>
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Date: Fri, 11 Jan 2019 11:31:59 -0500
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Subject:
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gdb-rhbz1560010-fix-assertion-symbol-language-dict-language-5of5.patch
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;; Fix 'Assertion `SYMBOL_LANGUAGE (sym) == DICT_LANGUAGE (dict)->la_language' failed.'
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;; Keith Seitz, RHBZ#1560010.
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gdb/23712: Test case for multidictionary
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This is a test derived from one of the reproducers in symtab/23010.
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The DIE tree used here is typical of compilations with LTO, where an
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artificial parent DIE of language C99 imports DIEs of other languages.
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gdb/testsuite/ChangeLog:
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PR gdb/23712
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PR symtab/23010
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* gdb.dwarf2/multidictionary.exp: New file.
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diff --git a/gdb/testsuite/gdb.dwarf2/multidictionary.exp b/gdb/testsuite/gdb.dwarf2/multidictionary.exp
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.dwarf2/multidictionary.exp
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@@ -0,0 +1,157 @@
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+# Copyright 2019 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 3 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, see <http://www.gnu.org/licenses/>.
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+
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+# A test of multi-language dictionaries, a solution to symtab/23010 et al.
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+
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+load_lib dwarf.exp
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+
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+# This test can only be run on targets which support DWARF.
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+if {![dwarf2_support]} {
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+ return 0
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+}
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+
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+standard_testfile main.c .S
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+
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+# Create the DWARF. This is derived from the reproducer in the bug
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+# mentioned above. This DIE tree is typical of compilations wtih
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+# LTO enabled.
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+
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+set asm_file [standard_output_file $srcfile2]
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+Dwarf::assemble $asm_file {
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+ declare_labels D45d9 D5079 D5080 D50a9 D50af D5ab2 D5ac2 D5ace D5acf
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+ declare_labels D2135f D2216a D22171 D226c4 D226ca D244ca \
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+ D245da D245e6
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+ declare_labels D41c21 D42025 D42045 D42038 D42045 D420b5
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+
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+ cu {} {
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+ D45d9: compile_unit {
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+ {language @DW_LANG_C_plus_plus}
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+ {name "SerialPortUtils.cpp"}
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+ } {
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+ D5079: base_type {
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+ {byte_size 1 sdata}
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+ {encoding @DW_ATE_unsigned}
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+ {name "char"}
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+ }
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+
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+ D5080: const_type {
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+ {type :$D5079}
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+ }
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+
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+ D50a9: pointer_type {
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+ {byte_size 4 sdata}
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+ {type :$D5080}
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+ }
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+
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+ D50af: const_type {
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+ {type :$D50a9}
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+ }
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+
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+ D5ab2: subprogram {
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+ {external 1 flag}
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+ {linkage_name "_Z18SerialSyncWriteStrPKc"}
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+ } {
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+ D5ac2: formal_parameter {
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+ {name "msg"}
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+ {type :$D50af}
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+ }
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+ D5ace: lexical_block {} {
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+ D5acf: DW_TAG_variable {
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+ {name "p"}
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+ {type :$D50a9}
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+ }
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+ }
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+ }
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+ }
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+ }
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+
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+ cu {} {
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+ D2135f: compile_unit {
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+ {language @DW_LANG_C_plus_plus}
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+ {name "Main.cpp"}
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+ } {
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+ D2216a: base_type {
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+ {byte_size 1 sdata}
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+ {encoding @DW_ATE_unsigned_char}
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+ {name "char"}
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+ }
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+
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+ D22171: const_type {
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+ {type :$D2216a}
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+ }
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+
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+ D226c4: pointer_type {
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+ {byte_size 4 sdata}
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+ {type :$D22171}
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+ }
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+
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+ D226ca: const_type {
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+ {type :$D226c4}
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+ }
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+
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+ D245da: subprogram {
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+ {name "PrintPanicMsg"}
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+ } {
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+ D245e6: formal_parameter {
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+ {name "msg"}
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+ {type :$D226ca}
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+ }
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+ }
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+ }
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+ }
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+
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+ cu {} {
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+ D41c21: compile_unit {
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+ {language @DW_LANG_C99}
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+ {name "<artificial>"}
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+ } {
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+ D42025: subprogram {
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+ {abstract_origin %$D245da}
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+ {low_pc 0x80b60 addr}
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+ {high_pc 0x6c data4}
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+ } {
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+ D42038: formal_parameter {
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+ {abstract_origin %$D245e6}
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+ }
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+
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+ D42045: inlined_subroutine {
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+ {abstract_origin %$D5ab2}
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+ {low_pc 0x8060 addr}
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+ {high_pc 0xc data4}
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+ } {
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+ D420b5: formal_parameter {
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+ {abstract_origin %$D5ac2}
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+ }
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+ }
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+ }
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+ }
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+ }
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+}
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+
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+# Build the test executable.
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+if {[build_executable $testfile.exp $testfile [list $asm_file $srcfile] {}] \
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+ == -1} {
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+ return -1
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+}
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+
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+# We force the DIEs above to be read in via "-readnow".
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+gdb_spawn_with_cmdline_opts "-readnow"
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+gdb_load $binfile
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+
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+# All we need to do is check whether GDB is alive. Without
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+# multidictionaries, it will either crash, assert, or throw an
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+# internal_error.
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+gdb_test "p 1" "= 1" "GDB is alive"
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+
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