4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
129 lines
3.2 KiB
Text
129 lines
3.2 KiB
Text
# Copyright 2013-2022 Free Software Foundation, Inc.
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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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load_lib dwarf.exp
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# This test can only be run on targets which support DWARF-2 and use gas.
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if {![dwarf2_support]} {
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return 0
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}
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if { [skip_cplus_tests] } { continue }
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standard_testfile main.c -dw.S
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# Make some DWARF for the test.
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set asm_file [standard_output_file $srcfile2]
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Dwarf::assemble $asm_file {
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# Using a funny address size here and in the pointer type lets us
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# also check for a sign-extension bug in the
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# DW_OP_GNU_implicit_pointer code.
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cu { addr_size 2 } {
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compile_unit {} {
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declare_labels struct_label short_type_label
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declare_labels char_type_label ptr_label
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declare_labels var_label
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struct_label: structure_type {
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{name S}
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{byte_size 4 DW_FORM_sdata}
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} {
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member {
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{name a}
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{type :$short_type_label}
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{data_member_location 0 DW_FORM_sdata}
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}
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member {
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{name b}
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{type :$char_type_label}
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{data_member_location 2 DW_FORM_sdata}
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}
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member {
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{name c}
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{type :$char_type_label}
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{data_member_location 3 DW_FORM_sdata}
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}
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}
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short_type_label: base_type {
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{name "short int"}
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{encoding @DW_ATE_signed}
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{byte_size 2 DW_FORM_sdata}
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}
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char_type_label: base_type {
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{name "signed char"}
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{encoding @DW_ATE_signed}
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{byte_size 1 DW_FORM_sdata}
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}
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# See comment above to understand the pointer size.
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ptr_label: pointer_type {
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{byte_size 2 DW_FORM_sdata}
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{type :$char_type_label}
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}
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var_label: DW_TAG_variable {
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{name s}
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{type :$struct_label}
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{location {
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const2u 0x5678
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stack_value
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piece 2
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const1u 2
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stack_value
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piece 1
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const1u 3
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stack_value
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piece 1
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{name p}
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{type :$ptr_label}
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{location {
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GNU_implicit_pointer $var_label 2
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} SPECIAL_expr}
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}
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}
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}
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}
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if { [build_executable ${testfile}.exp ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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# We need --readnow because otherwise we never read in the CU we
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# created above.
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set saved_gdbflags $GDBFLAGS
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set GDBFLAGS "$GDBFLAGS -readnow"
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clean_restart ${testfile}
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set GDBFLAGS $saved_gdbflags
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if ![runto_main] {
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return -1
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}
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# Determine byte order.
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set endian [get_endianness]
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# Access the second byte of s through an implicit pointer to the third
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# byte of s, using a negative offset. Compare that to the second byte of
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# the short integer 0x5678 in target byte order.
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switch $endian { little {set val 0x56} big {set val 0x78} }
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gdb_test "p/x p\[-1\]" " = $val"
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