1 # Copyright 2002-2018 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # This file was written by Michael Snyder (msnyder@redhat.com)
17 # This is a test for the gdb command "generate-core-file".
19 # Single-threaded test case
20 standard_testfile pthreads.c
21 set objfile $binfile.o
22 set corefile $binfile.test
23 set core0file ${binfile}0.test
25 if [istarget "*-*-linux"] then {
26 set target_cflags "-D_MIT_POSIX_THREADS"
31 # Attempt to prevent -Wl,-z,relro which happens by default at least on
32 # Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find
33 # libpthread, therefore libthread_db will not fail as expected
34 # on the test `zeroed-threads cannot be listed'.
37 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objfile}" object $opts] != ""
38 || ([gdb_compile_pthreads "${objfile}" "${binfile}" executable [concat $opts {additional_flags=-Wl,-z,norelro}] ] != ""
39 && [gdb_compile_pthreads "${objfile}" "${binfile}" executable $opts] != "") } {
43 # Now we can proceed with the real testing.
45 # Start with a fresh gdb.
47 clean_restart ${testfile}
49 # regexp for "horizontal" text (i.e. doesn't include newline or
51 set horiz "\[^\n\r\]*"
58 if { ! [ runto_main ] } then {
59 untested "could not run to main"
63 gdb_test_multiple "info threads" "threads are supported" {
64 -re ".* main .*$gdb_prompt $" {
65 # OK, threads are supported.
67 -re "${nl}$gdb_prompt $" {
68 unsupported "gdb does not support threads on this target"
73 # Make sure thread 1 is running
75 gdb_breakpoint "thread1"
76 gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running"
78 # Make sure thread 2 is running
80 gdb_breakpoint "thread2"
81 gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running"
84 set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
86 if {!$core_supported} {
91 # Test the uninitialized thread list.
92 # Provide the case of glibc td_thr_get_info handling of:
93 # /* Special case for the main thread before initialization. */
95 foreach symbol {__stack_user stack_used} {
96 set test "clear ${symbol}.next"
97 gdb_test_multiple "p *(void **) &${symbol} = 0" $test {
98 -re " = \\(void \\*\\) 0x0\r\n$gdb_prompt $" {
101 -re "No symbol \"${symbol}\" in current context\\.\r\n$gdb_prompt $" {
103 # Do not do the verification.
109 if {"$core0file" != ""} {
110 gdb_test "gcore $core0file" "Saved corefile .*" "save a zeroed-threads corefile"
114 # Now restart gdb and load the corefile.
115 clean_restart ${testfile}
117 foreach name { corefile core0file } { with_test_prefix $name {
118 set core_loaded [gdb_core_cmd [subst $$name] "re-load generated corefile"]
119 if { $core_loaded == -1 } {
120 # No use proceeding from here.
124 # FIXME: now what can we test about the thread state?
125 # We do not know for certain that there should be at least
126 # three threads, because who knows what kind of many-to-one
127 # mapping various OS's may do? Let's assume that there must
128 # be at least two threads:
130 gdb_test "info threads" "\\* 1 ${horiz}${nl} 2 ${horiz}.*" \
131 "corefile contains at least two threads"
133 # One thread in the corefile should be in the "thread2" function.
135 gdb_test "info threads" ".* thread2 .*" \
136 "a corefile thread is executing thread2"
138 # The thread2 thread should be marked as the current thread.
140 gdb_test "info threads" "\\* ${horiz} thread2 .*${nl}" \
141 "thread2 is current thread in corefile"