# Copyright 2004, 2007, 2008 Free Software Foundation, Inc.
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# Copyright 2004, 2007, 2008 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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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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# 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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# 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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# (at your option) any later version.
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#
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#
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# This program is distributed in the hope that it will be useful,
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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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# 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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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# GNU General Public License for more details.
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#
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#
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# You should have received a copy of the GNU General Public License
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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 .
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# along with this program. If not, see .
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# The program siginfo.c creates a backtrace containing a signal
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# The program siginfo.c creates a backtrace containing a signal
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# handler registered using sigaction's sa_sigaction / SA_SIGINFO.
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# handler registered using sigaction's sa_sigaction / SA_SIGINFO.
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# Some OS's (e.g., GNU/Linux) use different signal trampolines for
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# Some OS's (e.g., GNU/Linux) use different signal trampolines for
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# sa_sigaction and sa_handler.
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# sa_sigaction and sa_handler.
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# This test first confirms that GDB can backtrace through the
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# This test first confirms that GDB can backtrace through the
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# alternative sa_sigaction signal handler, and second that GDB can
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# alternative sa_sigaction signal handler, and second that GDB can
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# nexti/stepi out of such a handler.
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# nexti/stepi out of such a handler.
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if [target_info exists gdb,nosignals] {
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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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verbose "Skipping signals.exp because of nosignals."
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continue
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continue
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}
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}
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if $tracelevel then {
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if $tracelevel then {
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strace $tracelevel
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strace $tracelevel
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}
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}
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set prms_id 0
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set prms_id 0
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set bug_id 0
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set bug_id 0
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set testfile siginfo
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set testfile siginfo
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set srcfile ${testfile}.c
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested "Couldn't compile ${srcfile}.c"
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untested "Couldn't compile ${srcfile}.c"
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return -1
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return -1
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}
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}
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# get things started
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# get things started
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gdb_exit
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gdb_exit
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gdb_start
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_load ${binfile}
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gdb_test "display/i \$pc"
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gdb_test "display/i \$pc"
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# Advance to main
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# Advance to main
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if { ![runto_main] } then {
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if { ![runto_main] } then {
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gdb_suppress_tests;
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gdb_suppress_tests;
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}
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}
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# Pass all the alarms straight through (but verbosely)
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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 SIGALRM print pass nostop"
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# gdb_test "handle SIGVTALRM 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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# gdb_test "handle SIGPROF print pass nostop"
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# Run to the signal handler, validate the backtrace.
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# Run to the signal handler, validate the backtrace.
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gdb_test "break handler"
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gdb_test "break handler"
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gdb_test "continue" ".* handler .*" "continue to stepi handler"
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gdb_test "continue" ".* handler .*" "continue to stepi handler"
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send_gdb "bt\n"
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send_gdb "bt\n"
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gdb_expect_list "backtrace for nexti" ".*$gdb_prompt $" {
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gdb_expect_list "backtrace for nexti" ".*$gdb_prompt $" {
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"\[\r\n\]+.0 \[^\r\n\]* handler "
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"\[\r\n\]+.0 \[^\r\n\]* handler "
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"\[\r\n\]+.1 .signal handler called."
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"\[\r\n\]+.1 .signal handler called."
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"\[\r\n\]+.2 \[^\r\n\]* main .*"
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"\[\r\n\]+.2 \[^\r\n\]* main .*"
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}
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}
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# Check that GDB can step the inferior back to main
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# Check that GDB can step the inferior back to main
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set test "step out of handler"
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set test "step out of handler"
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gdb_test_multiple "step" "${test}" {
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gdb_test_multiple "step" "${test}" {
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-re "Could not insert single-step breakpoint.*$gdb_prompt $" {
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-re "Could not insert single-step breakpoint.*$gdb_prompt $" {
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setup_kfail sparc*-*-openbsd* gdb/1736
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setup_kfail sparc*-*-openbsd* gdb/1736
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fail "$test (could not insert single-step breakpoint)"
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fail "$test (could not insert single-step breakpoint)"
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}
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}
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-re "done = 1;.*${gdb_prompt} $" {
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-re "done = 1;.*${gdb_prompt} $" {
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send_gdb "$i\n"
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send_gdb "$i\n"
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exp_continue
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exp_continue
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}
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}
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-re "\} .. handler .*${gdb_prompt} $" {
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-re "\} .. handler .*${gdb_prompt} $" {
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send_gdb "step\n"
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send_gdb "step\n"
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exp_continue
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exp_continue
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}
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}
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-re "Program exited normally.*${gdb_prompt} $" {
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-re "Program exited normally.*${gdb_prompt} $" {
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kfail gdb/1613 "$test (program exited)"
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kfail gdb/1613 "$test (program exited)"
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}
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}
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-re "(while ..done|return 0).*${gdb_prompt} $" {
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-re "(while ..done|return 0).*${gdb_prompt} $" {
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# After stepping out of a function /r signal-handler, GDB will
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# After stepping out of a function /r signal-handler, GDB will
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# advance the inferior until it is at the first instruction of
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# advance the inferior until it is at the first instruction of
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# a code-line. While typically things return to the middle of
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# a code-line. While typically things return to the middle of
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# the "while..." (and hence GDB advances the inferior to the
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# the "while..." (and hence GDB advances the inferior to the
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# "return..." line) it is also possible for the return to land
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# "return..." line) it is also possible for the return to land
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# on the first instruction of "while...". Accept both cases.
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# on the first instruction of "while...". Accept both cases.
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pass "$test"
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pass "$test"
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}
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}
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}
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}
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