212 lines
6 KiB
Text
212 lines
6 KiB
Text
# Copyright 2002-2004, 2007-2012 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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# This file was written by Michael Snyder (msnyder@redhat.com)
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# This is a test for the gdb command "generate-core-file".
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if $tracelevel then {
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strace $tracelevel
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}
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# Single-threaded test case
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set testfile "gcore-thread"
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set srcfile pthreads.c
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set objfile ${objdir}/${subdir}/${testfile}.o
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set binfile ${objdir}/${subdir}/${testfile}
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set corefile ${objdir}/${subdir}/${testfile}.test
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set core0file ${objdir}/${subdir}/${testfile}0.test
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if [istarget "*-*-linux"] then {
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set target_cflags "-D_MIT_POSIX_THREADS"
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} else {
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set target_cflags ""
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}
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# Attempt to prevent -Wl,-z,relro which happens by default at least on
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# Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find
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# libpthread, therefore libthread_db will not fail as expected
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# on the test `zeroed-threads cannot be listed'.
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set opts [list debug "incdir=${objdir}"]
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objfile}" object $opts] != ""
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|| ([gdb_compile_pthreads "${objfile}" "${binfile}" executable [concat $opts {additional_flags=-Wl,-z,norelro}] ] != ""
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&& [gdb_compile_pthreads "${objfile}" "${binfile}" executable $opts] != "") } {
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return -1
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}
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# Now we can proceed with the real testing.
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# Start with a fresh gdb.
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clean_restart ${testfile}
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# regexp for "horizontal" text (i.e. doesn't include newline or
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# carriage return)
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set horiz "\[^\n\r\]*"
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# regexp for newline
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set nl "\[\r\n\]+"
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set timeout 30
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gdb_test_multiple "help gcore" "help gcore" {
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-re "Undefined command: .gcore.*$gdb_prompt $" {
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# gcore command not supported -- nothing to test here.
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unsupported "gdb does not support gcore on this target"
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return -1;
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}
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-re "Save a core file .*$gdb_prompt $" {
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pass "help gcore"
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}
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}
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if { ! [ runto_main ] } then {
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untested gcore-thread.exp
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return -1
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}
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gdb_test_multiple "info threads" "threads are supported" {
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-re ".* main .*$gdb_prompt $" {
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# OK, threads are supported.
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}
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-re "${nl}$gdb_prompt $" {
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unsupported "gdb does not support threads on this target"
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return -1;
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}
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}
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# Make sure thread 1 is running
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delete_breakpoints
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gdb_breakpoint "thread1"
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gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running"
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# Make sure thread 2 is running
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delete_breakpoints
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gdb_breakpoint "thread2"
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gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running"
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set escapedfilename [string_to_regexp $corefile]
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# Drop corefile
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set core_supported 0
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gdb_test_multiple "gcore $corefile" "save a corefile" \
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{
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-re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
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pass "save a corefile"
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global core_supported
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set core_supported 1
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}
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-re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
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unsupported "save a corefile"
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}
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}
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if {!$core_supported} {
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return -1
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}
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# Test the uninitialized thread list.
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# Provide the case of glibc td_thr_get_info handling of:
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# /* Special case for the main thread before initialization. */
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foreach symbol {__stack_user stack_used} {
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set test "clear ${symbol}.next"
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gdb_test_multiple "p *(void **) &${symbol} = 0" $test {
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-re " = \\(void \\*\\) 0x0\r\n$gdb_prompt $" {
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pass $test
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}
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-re "No symbol \"${symbol}\" in current context\\.\r\n$gdb_prompt $" {
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xfail $test
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# Do not do the verification.
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set core0file ""
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}
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}
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}
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if {"$core0file" != ""} {
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gdb_test "gcore $core0file" "Saved corefile .*" "save a zeroed-threads corefile"
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}
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# Now restart gdb and load the corefile.
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clean_restart ${testfile}
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proc load_core { corefile } {
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global gdb_prompt
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global libthread_db_seen
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set libthread_db_seen 0
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gdb_test_multiple "core $corefile" \
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"re-load generated corefile" {
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-re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
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set libthread_db_seen 1
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exp_continue
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}
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-re " is not a core dump:.*\r\n$gdb_prompt $" {
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fail "re-load generated corefile (bad file format)"
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# No use proceeding from here.
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return 0;
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}
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-re ": No such file or directory.*\r\n$gdb_prompt $" {
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fail "re-load generated corefile (file not found)"
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# No use proceeding from here.
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return 0;
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}
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-re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
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fail "re-load generated corefile (incomplete note section)"
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}
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-re "Core was generated by .*\r\n$gdb_prompt $" {
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pass "re-load generated corefile"
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}
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}
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return 1
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}
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if ![load_core $corefile] {
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return
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}
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# FIXME: now what can we test about the thread state?
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# We do not know for certain that there should be at least
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# three threads, because who knows what kind of many-to-one
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# mapping various OS's may do? Let's assume that there must
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# be at least two threads:
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gdb_test "info threads" ".*${nl} 2 ${horiz}${nl}\\* 1 .*" \
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"corefile contains at least two threads"
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# One thread in the corefile should be in the "thread2" function.
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gdb_test "info threads" ".* thread2 .*" \
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"a corefile thread is executing thread2"
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# The thread2 thread should be marked as the current thread.
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gdb_test "info threads" ".*${nl}\\* ${horiz} thread2 .*" \
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"thread2 is current thread in corefile"
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# Test the uninitialized thread list.
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if {"$core0file" != "" && [load_core $core0file]} {
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set test "zeroed-threads cannot be listed"
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if {!$libthread_db_seen} {
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verbose -log "No libthread_db loaded - -Wl,-z,relro compilation?"
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xfail $test
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} else {
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gdb_test "info threads" "Cannot find new threads: .*" $test
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}
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}
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