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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.
115 lines
3.6 KiB
Plaintext
115 lines
3.6 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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#
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# Copyright 2013-2022 Free Software Foundation, Inc.
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#
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# Contributed by Intel Corp. <markus.t.metzger@intel.com>
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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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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.exp COMPILE=1"
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standard_testfile tailcall.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.S
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} else {
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standard_testfile i686-tailcall.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 the call to foo
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gdb_test_no_output "record btrace"
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gdb_test "next 2"
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# show the flat branch trace
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gdb_test "record function-call-history 1" [multi_line \
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"1\tmain" \
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"2\tfoo" \
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"3\tbar" \
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"4\tmain" \
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] "flat"
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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\tmain" \
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"2\t foo" \
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"3\t bar" \
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"4\tmain" \
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] "indented"
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# go into bar
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gdb_test "record goto 4" ".*bar \\(\\) at .*tailcall.c:24\r\n.*"
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# check the backtrace
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gdb_test "backtrace" [multi_line \
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"#0.*bar \\(\\) at tailcall.c:24" \
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"#1.*foo \\(\\) at tailcall.c:29" \
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"#2.*main \\(\\) at tailcall.c:37" \
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"Backtrace stopped: not enough registers or memory available to unwind further" \
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]
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# walk the backtrace
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gdb_test "up" "#1\[^\r\n\]*foo \\(\\) at tailcall.c:29\r\n.*" "up to foo"
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gdb_test "up" "#2\[^\r\n\]*main \\(\\) at tailcall.c:37\r\n.*" "up to main"
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gdb_test "down" "#1\[^\r\n\]*foo \\(\\) at tailcall.c:29\r\n.*" "down to foo"
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# test stepping into and out of tailcalls.
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gdb_test "finish" "\[^\r\n\]*main \\(\\) at tailcall.c:38\r\n.*" \
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"finish.1"
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gdb_test "reverse-step" "\[^\r\n\]*bar \\(\\) at tailcall.c:24\r\n.*" \
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"reverse-step.1"
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gdb_test "reverse-finish" "\[^\r\n\]*foo \\(\\) at tailcall.c:29\r\n.*" \
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"reverse-finish.1"
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gdb_test "reverse-step" "\[^\r\n\]*main \\(\\) at tailcall.c:37\r\n.*" \
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"reverse-step.2"
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gdb_test "next" "\[^\r\n\]*38.*" \
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"next.1"
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gdb_test "reverse-next" "\[^\r\n\]*main \\(\\) at tailcall.c:37\r\n.*" \
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"reverse-next.1"
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gdb_test "step" "\[^\r\n\]*foo \\(\\) at tailcall.c:29\r\n.*" \
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"step.1"
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gdb_test "finish" "\[^\r\n\]*main \\(\\) at tailcall.c:38\r\n.*" \
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"finish.2"
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gdb_test "reverse-step" "\[^\r\n\]*bar \\(\\) at tailcall.c:24\r\n.*" \
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"reverse-step.3"
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gdb_test "finish" "\[^\r\n\]*main \\(\\) at tailcall.c:38\r\n.*" \
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"finish.3"
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