1 # Copyright 2002-2024 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 ${binfile}0.test
25 if {[istarget "*-*-linux"]} {
26 set target_cflags "-D_MIT_POSIX_THREADS"
31 # Attempt to prevent -Wl,-z,relro which happens by default at least on
32 # Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find
33 # libpthread, therefore libthread_db will not fail as expected
34 # on the test `zeroed-threads cannot be listed'.
37 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objfile}" object $opts] != ""
38 || ([gdb_compile_pthreads "${objfile}" "${binfile}" executable [concat $opts {ldflags=-Wl,-z,norelro}] ] != ""
39 && [gdb_compile_pthreads "${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 "\[^\n\r\]*"
62 gdb_test_multiple "info threads" "threads are supported" {
63 -re ".* main .*$gdb_prompt $" {
64 # OK, threads are supported.
66 -re "${nl}$gdb_prompt $" {
67 unsupported "gdb does not support threads on this target"
72 # Make sure thread 1 is running
74 gdb_breakpoint "thread1"
75 gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running"
77 # Make sure thread 2 is running
79 gdb_breakpoint "thread2"
80 gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running"
83 set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
85 if {!$core_supported} {
90 # Test the uninitialized thread list.
91 # Provide the case of glibc td_thr_get_info handling of:
92 # /* Special case for the main thread before initialization. */
94 foreach symbol {__stack_user stack_used} {
95 set test "clear ${symbol}.next"
96 gdb_test_multiple "p *(void **) &${symbol} = 0" $test {
97 -re " = \\(void \\*\\) 0x0\r\n$gdb_prompt $" {
100 -re "No symbol \"${symbol}\" in current context\\.\r\n$gdb_prompt $" {
102 # Do not do the verification.
108 if {"$core0file" != ""} {
109 gdb_gcore_cmd $core0file "save a zeroed-threads corefile"
113 # Now restart gdb and load the corefile.
114 clean_restart ${testfile}
116 proc load_core { filename } {
119 set core_loaded [gdb_core_cmd $filename "re-load generated corefile"]
120 if { $core_loaded == -1 } {
121 # No use proceeding from here.
125 # FIXME: now what can we test about the thread state?
126 # We do not know for certain that there should be at least
127 # three threads, because who knows what kind of many-to-one
128 # mapping various OS's may do? Let's assume that there must
129 # be at least two threads:
131 gdb_test "info threads" "\\* 1 ${horiz}${nl} 2 ${horiz}.*" \
132 "corefile contains at least two threads"
134 # One thread in the corefile should be in the "thread2" function.
136 gdb_test "info threads" ".* thread2 .*" \
137 "a corefile thread is executing thread2"
139 # The thread2 thread should be marked as the current thread.
141 gdb_test "info threads" "\\* ${horiz} thread2 .*" \
142 "thread2 is current thread in corefile"
145 foreach name { corefile core0file } {
146 set filename [subst $$name]
147 if { $filename == "" } {
150 with_test_prefix $name {