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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.
103 lines
3.0 KiB
Plaintext
103 lines
3.0 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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#
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# Copyright 2016-2022 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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#
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# This is a variant of tailcall.exp where the entire trace contains only tail
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# calls. This used to cause a crash in get_frame_type.
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#
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if { [skip_btrace_tests] } {
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unsupported "target does not support record-btrace"
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return -1
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}
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# This test requires the compiler to generate a tail call. To guarantee that
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# we always get one, we use an assembly source file.
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#
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# We use different assembly sources based on the target architecture.
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#
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# Luckily, they are similar enough that a single test script can handle
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# both.
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set opts {}
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if [info exists COMPILE] {
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# make check RUNTESTFLAGS="gdb.btrace/tailcall-only.exp COMPILE=1"
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standard_testfile tailcall-only.c
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lappend opts debug optimize=-O2
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} elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
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if {[is_amd64_regs_target]} {
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standard_testfile x86_64-tailcall-only.S
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} else {
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standard_testfile i686-tailcall-only.S
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}
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} else {
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unsupported "target architecture not supported"
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return -1
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}
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if [prepare_for_testing "failed to prepare" $testfile $srcfile $opts] {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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# we want to see the full trace for this test
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gdb_test_no_output "set record function-call-history-size 0"
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# trace foo
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gdb_test "step" ".*" "prepare for recording"
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gdb_test_no_output "record btrace"
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gdb_test "stepi 4" ".*" "record branch trace"
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# for debugging
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gdb_test "info record" ".*"
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# show the branch trace with calls indented
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gdb_test "record function-call-history /c 1" [multi_line \
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"1\tfoo" \
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"2\t foo_1" \
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"3\t bar" \
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"4\t bar_1"
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] "function-call-history"
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# We can step
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gdb_test "record goto begin" ".*foo.*"
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gdb_test "stepi" ".*foo_1.*" "step into foo_1"
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gdb_test "step" ".*bar.*" "step into bar"
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gdb_test "stepi" ".*bar_1.*" "step into bar_1"
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# We can neither finish nor return.
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gdb_test "finish" "Cannot find the caller frame.*"
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gdb_test_multiple "return" "return" {
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-re "Make .* return now.*y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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-re "Cannot find the caller frame.*$gdb_prompt $" {
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pass "return"
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}
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}
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# But we can reverse-finish
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gdb_test "reverse-finish" ".*bar.*"
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gdb_test "reverse-step" ".*foo_1.*"
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# Info frame isn't useful but doesn't crash as it used to.
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gdb_test "up" ".*foo.*"
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gdb_test "info frame" ".*"
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