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143 lines
4.3 KiB
Plaintext
143 lines
4.3 KiB
Plaintext
# Copyright 2002-2018 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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# Single-threaded test case
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standard_testfile pthreads.c
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set objfile $binfile.o
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set corefile $binfile.test
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set core0file ${binfile}0.test
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if [istarget "*-*-linux"] then {
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set target_cflags "-D_MIT_POSIX_THREADS"
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} else {
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set target_cflags ""
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}
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# Attempt to prevent -Wl,-z,relro which happens by default at least on
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# Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find
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# libpthread, therefore libthread_db will not fail as expected
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# on the test `zeroed-threads cannot be listed'.
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set opts [list debug]
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if {[gdb_compile_pthreads "${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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if { ! [ runto_main ] } then {
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untested "could not run to main"
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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 $" {
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unsupported "gdb does not support threads on this target"
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return -1
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}
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}
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# Make sure thread 1 is running
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delete_breakpoints
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gdb_breakpoint "thread1"
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gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running"
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# Make sure thread 2 is running
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delete_breakpoints
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gdb_breakpoint "thread2"
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gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running"
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# Drop corefile
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set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
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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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foreach name { corefile core0file } { with_test_prefix $name {
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set core_loaded [gdb_core_cmd [subst $$name] "re-load generated corefile"]
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if { $core_loaded == -1 } {
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# No use proceeding from here.
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continue
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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" "\\* 1 ${horiz}${nl} 2 ${horiz}.*" \
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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" "\\* ${horiz} thread2 .*${nl}" \
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"thread2 is current thread in corefile"
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}}
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