105 lines
3.3 KiB
Text
105 lines
3.3 KiB
Text
# Copyright 2004, 2007, 2008, 2009 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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# The program sigaltstack.c creates a backtrace containing nested
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# signal handlers on an alternative stack. This in turn leads to a
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# non-contiguous (and possibly non-monotonic) backtrace - stack
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# address jump at the normal-alt stack boundary.
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# This test confirms that GDB can both backtrace through and finish
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# such a stack.
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if [target_info exists gdb,nosignals] {
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verbose "Skipping signals.exp because of nosignals."
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continue
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}
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set testfile sigaltstack
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested "Couldn't compile ${srcfile}.c"
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return -1
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}
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# get things started
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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# Pass all the alarms straight through (but verbosely)
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gdb_test "handle SIGALRM print pass nostop"
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gdb_test "handle SIGVTALRM print pass nostop"
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gdb_test "handle SIGPROF print pass nostop"
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# Advance to main
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if { ![runto_main] } then {
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gdb_suppress_tests;
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}
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# Stop in handle, when at the inner most level
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gdb_test "break catcher if level == INNER"
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gdb_test "continue" ".* catcher .*" "continue to catch"
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# step off the assignment
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gdb_test "next"
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# Full backtrace?
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send_gdb "bt\n"
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gdb_expect_list "backtrace" ".*$gdb_prompt $" {
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"\[\r\n\]+.0 \[^\r\n\]* catcher "
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"\[\r\n\]+.1 .signal handler called."
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"\[\r\n\]+.2 \[^\r\n\]* thrower .next_level=INNER"
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"\[\r\n\]+.3 \[^\r\n\]* catcher "
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"\[\r\n\]+.4 .signal handler called."
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"\[\r\n\]+.5 \[^\r\n\]* thrower .next_level=OUTER"
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"\[\r\n\]+.6 \[^\r\n\]* catcher "
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"\[\r\n\]+.7 \[^\r\n\]* main .*"
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}
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proc finish_test { pattern msg } {
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global gdb_prompt
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gdb_test_multiple "finish" $msg {
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-re "Cannot insert breakpoint 0.*${gdb_prompt} $" {
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# Some platforms use a special read-only page for signal
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# trampolines. We can't set a breakpoint there, and we
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# don't gracefully fall back to single-stepping.
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setup_kfail "i?86-*-linux*" gdb/1736
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setup_kfail "*-*-openbsd*" gdb/1736
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fail "$msg (could not set breakpoint)"
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}
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-re "$pattern.*${gdb_prompt} $" {
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pass $msg
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}
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}
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}
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# Finish?
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finish_test "signal handler called." "finish from catch LEAF"
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finish_test "thrower .next_level=INNER, .*" "finish to throw INNER"
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finish_test "catcher .*" "finish to catch INNER"
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finish_test "signal handler called.*" "finish from catch INNER"
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finish_test "thrower .next_level=OUTER, .*" "finish to OUTER"
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finish_test "catcher .*" "finish to catch MAIN"
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finish_test "main .*" "finish to MAIN"
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