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2b3f4c0616
For test-case gdb.dlang/dlang-start.exp, I run into:
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UNSUPPORTED: gdb.dlang/dlang-start.exp: require failed: can_compile d
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My distro has no support for gdc, but I'd like to have the test-case
running and passing, so let's rewrite the test-case using dwarf assembly
and add it alongside (rather than replacing it, because it's good to use
actual compiler output if we have it available).
My distro does have a package providing dmd, so let's mimic that debug info in
the dwarf assembly. This gives us:
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(gdb) start ^M
Temporary breakpoint 1 at 0x4004ab^M
Starting program: dlang-start-2 ^M
^M
Temporary breakpoint 1, 0x00000000004004ab in _Dmain ()^M
...
The "_Dmain ()" should probably be "D main", I've filed PR30276 about that.
Also add a "show language" to check that we automatically set the language
correctly to D.
Note that the dwarf assembly also describes main, otherwise the test-case
doesn't function as regression test for commit 47fe57c928 ("Fix "start" for
D, Rust, etc").
Tested on x86_64-linux.
89 lines
2.4 KiB
Plaintext
89 lines
2.4 KiB
Plaintext
# Copyright (C) 2023 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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# Test "start" for D, dwarf assembly version.
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load_lib d-support.exp
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load_lib dwarf.exp
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require allow_d_tests dwarf2_support
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# This testcase verifies the behavior of the `start' command, which
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# does not work when we use the gdb stub...
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require !use_gdb_stub
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standard_testfile dmain.c -dw.S
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with_shared_gdb {
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lassign [function_range _Dmain ${srcdir}/${subdir}/${srcfile}] \
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dmain_start dmain_length
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lassign [function_range main ${srcdir}/${subdir}/${srcfile}] \
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main_start main_length
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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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global dmain_start dmain_length
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global main_start main_length
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cu { label cu_start } {
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compile_unit {
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{language @DW_LANG_D}
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} {
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module {
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{name dmain}
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}
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subprogram {
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{name "D main" }
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{MIPS_linkage_name "_Dmain"}
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{low_pc $dmain_start DW_FORM_addr}
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{high_pc "$dmain_start + $dmain_length" DW_FORM_addr}
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{external 1 flag_present}
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}
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subprogram {
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{name "dmain._d_cmain!().main" }
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{MIPS_linkage_name "main"}
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{low_pc $main_start DW_FORM_addr}
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{high_pc "$main_start + $main_length" DW_FORM_addr}
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{external 1 flag_present}
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}
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}
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}
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aranges {} cu_start {
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arange {} $dmain_start $dmain_length
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arange {} $main_start $main_length
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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# Verify that "start" lands inside the right procedure.
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if {[gdb_start_cmd] < 0} {
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unsupported "start failed"
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return -1
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}
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# We should probably have "D main" instead of "_Dmain" here, filed PR30276
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# '[gdb/symtab] function name is _Dmain instead of "D main"' about that.
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gdb_test "" \
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"in _Dmain \\(\\)" \
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"start"
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gdb_test "show language" {"auto; currently d".}
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