2014-01-01 04:54:24 +01:00
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# Copyright 2004-2014 Free Software Foundation, Inc.
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2012-11-08 22:16:43 +01:00
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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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# Multi-threaded siginfo test.
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if [target_info exists gdb,nosignals] {
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verbose "Skipping siginfo-thread.exp because of nosignals."
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continue
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}
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if { ! [istarget "i?86-*-linux*"]
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&& ! [istarget "x86_64-*-linux*"]
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&& ! [istarget "arm*-*-linux*"] } {
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verbose "Skipping siginfo-thread.exp because of lack of support."
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return
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}
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standard_testfile .c
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" \
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"${binfile}" executable {debug}] != "" } {
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return -1
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}
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clean_restart $binfile
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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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# Run to the signal.
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gdb_test "continue" ".*Program received signal SIGSEGV.*" "continue to signal"
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# Try to generate a core file, for a later test.
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set gcorefile [standard_output_file $testfile.gcore]
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set gcore_created [gdb_gcore_cmd $gcorefile "save a core file"]
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set ssi_addr ""
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set test "Extract si_addr"
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gdb_test_multiple "p \$_siginfo" "$test" {
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-re "si_addr = ($hex).*$gdb_prompt $" {
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set ssi_addr $expect_out(1,string)
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pass "$test"
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}
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}
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set test "Extract si_errno"
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gdb_test_multiple "p \$_siginfo" "$test" {
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-re "si_errno = (\[0-9\]\+).*$gdb_prompt $" {
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set ssi_errno $expect_out(1,string)
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pass "$test"
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}
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}
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set test "Extract si_code"
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gdb_test_multiple "p \$_siginfo" "$test" {
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-re "si_code = (\[0-9\]\+).*$gdb_prompt $" {
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set ssi_code $expect_out(1,string)
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pass "$test"
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}
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}
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set test "Extract si_signo"
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gdb_test_multiple "p \$_siginfo" "$test" {
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-re "si_signo = (\[0-9\]\+).*$gdb_prompt $" {
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set ssi_signo $expect_out(1,string)
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pass "$test"
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}
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}
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set bp_location [gdb_get_line_number "set breakpoint here"]
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gdb_test "break $bp_location"
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gdb_test "continue" ".* handler .*" "continue to handler"
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gdb_test "p ssi_addr" " = \\(void \\*\\) $ssi_addr"
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gdb_test "p ssi_errno" " = $ssi_errno"
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gdb_test "p ssi_code" " = $ssi_code"
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gdb_test "p ssi_signo" " = $ssi_signo"
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gdb_test "thread 1" ".*"
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# siginfo is available here -- it shows SIGSTOP -- so we test to make
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# sure that we have a different signal from the SEGV thread.
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gdb_test "p \$_siginfo.si_signo == $ssi_signo" " = 0" \
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"test signal in main thread"
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# Test siginfo preservation in core files.
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if {$gcore_created} {
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clean_restart $binfile
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gdb_test "core $gcorefile" "Core was generated by.*" \
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"core [file tail $gcorefile]"
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gdb_test "p \$_siginfo.si_signo" " = $ssi_signo" \
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"p \$_siginfo.si_signo from core file"
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gdb_test "p \$_siginfo.si_errno" " = $ssi_errno" \
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"p \$_siginfo.si_errno from core file"
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gdb_test "p \$_siginfo.si_code" " = $ssi_code" \
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"p \$_siginfo.si_code from core file"
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gdb_test "p \$_siginfo._sifields._sigfault.si_addr" \
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" = \\(void \\*\\) $ssi_addr" \
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"p \$_siginfo._sifields._sigfault.si_addr from core file"
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# We don't know which thread will be signalled, so we simply
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# ensure that only one thread got a SEGV.
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gdb_test_no_output "set variable \$count = 0"
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foreach thread {1 2} {
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gdb_test "thread $thread" ".*" "select thread $thread with core file"
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gdb_test_no_output \
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"set variable \$count += (\$_siginfo.si_signo == $ssi_signo)" \
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"update counter in thread $thread"
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}
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gdb_test "print \$count" " = 1"
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}
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