mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
51514e061b
* gdb.threads/tls.c (spin): Check errno only if sem_wait actually failed. (do_pass): Likewise. * gdb.threads/tls.exp: Always initialize no_of_threads.
292 lines
8.2 KiB
Plaintext
292 lines
8.2 KiB
Plaintext
# tls.exp -- Expect script to test thread-local storage
|
|
# Copyright (C) 1992, 2003 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
# Please email any bugs, comments, and/or additions to this file to:
|
|
# bug-gdb@prep.ai.mit.edu
|
|
|
|
set testfile tls
|
|
set srcfile ${testfile}.c
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
|
|
|
if [istarget "*-*-linux"] then {
|
|
set target_cflags "-D_MIT_POSIX_THREADS"
|
|
} else {
|
|
set target_cflags ""
|
|
}
|
|
|
|
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
|
|
return -1
|
|
}
|
|
|
|
### Compute the value of the a_thread_local variable.
|
|
proc compute_expected_value {value} {
|
|
set expected_value 0
|
|
set i 0
|
|
while { $i <= $value} {
|
|
incr expected_value $i
|
|
incr i
|
|
}
|
|
return $expected_value
|
|
}
|
|
|
|
### Get the value of the variable 'me' for the current thread.
|
|
proc get_me_variable {tnum} {
|
|
global expect_out
|
|
global gdb_prompt
|
|
global decimal
|
|
|
|
set value_of_me -1
|
|
send_gdb "print me\n"
|
|
gdb_expect {
|
|
-re ".*= ($decimal).*\r\n$gdb_prompt $" {
|
|
set value_of_me $expect_out(1,string)
|
|
pass "$tnum thread print me"
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
fail "$tnum thread print me"
|
|
}
|
|
timeout {
|
|
fail "$tnum thread print me (timeout)"
|
|
}
|
|
}
|
|
return ${value_of_me}
|
|
}
|
|
|
|
### Check the values of the thread local variables in the thread.
|
|
### Also check that info address print the right things.
|
|
proc check_thread_local {number} {
|
|
set me_variable [get_me_variable $number]
|
|
set expected_value [compute_expected_value ${me_variable}]
|
|
|
|
gdb_test "p a_thread_local" \
|
|
"= $expected_value" \
|
|
"${number} thread local storage"
|
|
|
|
gdb_test "p another_thread_local" \
|
|
"= $me_variable" \
|
|
"${number} another thread local storage"
|
|
|
|
gdb_test "info address a_thread_local" \
|
|
".*a_thread_local.*a thread-local variable at offset.*" \
|
|
"${number} info address a_thread_local"
|
|
|
|
gdb_test "info address another_thread_local" \
|
|
".*another_thread_local.*a thread-local variable at offset.*" \
|
|
"${number} info address another_thread_local"
|
|
}
|
|
|
|
### Select a particular thread.
|
|
proc select_thread {thread} {
|
|
global gdb_prompt
|
|
|
|
send_gdb "thread $thread\n"
|
|
gdb_expect {
|
|
-re "\\\[Switching to thread .*\\\].*\r\n$gdb_prompt $" {
|
|
pass "selected thread: $thread"
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
fail "selected thread: $thread"
|
|
}
|
|
timeout {
|
|
fail "selected thread: $thread (timeout)"
|
|
}
|
|
}
|
|
}
|
|
|
|
### Do a backtrace for the current thread, and check that the 'spin' routine
|
|
### is in it. This means we have one of the threads we created, rather
|
|
### than the main thread. Record the thread in the spin_threads
|
|
### array. Also remember the level of the 'spin' routine in the backtrace, for
|
|
### later use.
|
|
proc check_thread_stack {number spin_threads spin_threads_level} {
|
|
global gdb_prompt
|
|
global expect_out
|
|
global decimal
|
|
global hex
|
|
upvar $spin_threads tarr
|
|
upvar $spin_threads_level tarrl
|
|
|
|
select_thread $number
|
|
send_gdb "where\n"
|
|
gdb_expect {
|
|
-re ".*(\[0-9\]+)\[ \t\]+$hex in spin \\(vp=(0x\[0-9a-f\]+).*\r\n$gdb_prompt $" {
|
|
if {[info exists tarr($number)]} {
|
|
fail "backtrace of thread number $number in spin"
|
|
} else {
|
|
pass "backtrace of thread number $number in spin"
|
|
set level $expect_out(1,string)
|
|
set tarrl($number) $level
|
|
set tarr($number) 1
|
|
}
|
|
}
|
|
-re ".*$gdb_prompt $" {
|
|
set tarr($number) 0
|
|
set tarrl($number) 0
|
|
pass "backtrace of thread number $number not relevant"
|
|
}
|
|
timeout {
|
|
fail "backtrace of thread number $number (timeout)"
|
|
}
|
|
}
|
|
}
|
|
|
|
gdb_exit
|
|
gdb_start
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
|
|
gdb_load ${binfile}
|
|
if ![runto_main] then {
|
|
fail "Can't run to main"
|
|
return 0
|
|
}
|
|
|
|
# Set a breakpoint at the "spin" routine to
|
|
# test the thread local's value.
|
|
#
|
|
gdb_test "b [gdb_get_line_number "here we know tls value"]" \
|
|
".*Breakpoint 2.*tls.*" "set breakpoint at all threads"
|
|
|
|
# Set a bp at a point where we know all threads are alive.
|
|
#
|
|
gdb_test "b [gdb_get_line_number "still alive"]" \
|
|
".*Breakpoint 3.*tls.*" "set breakpoint at synch point"
|
|
|
|
# Set a bp at the end to see if all threads are finished.
|
|
#
|
|
gdb_test "b [gdb_get_line_number "before exit"]" \
|
|
".*Breakpoint 4.*tls.*" "set breakpoint at exit"
|
|
|
|
send_gdb "continue\n"
|
|
gdb_expect {
|
|
-re ".*Program received signal SIGSEGV.*a_thread_local = 0;.*$gdb_prompt $" {
|
|
# This is the first symptom if the gcc and binutils versions
|
|
# in use support TLS, but the system glibc does not.
|
|
unsupported "continue to first thread: system does not support TLS"
|
|
return -1
|
|
}
|
|
-re ".*Program exited normally.*$gdb_prompt $" {
|
|
fail "continue to first thread: program runaway"
|
|
}
|
|
-re ".*Pass 0 done.*Pass 1 done.*$gdb_prompt $" {
|
|
fail "continue to first thread: program runaway 2"
|
|
}
|
|
-re ".*Breakpoint 2.*tls value.*$gdb_prompt $" {
|
|
pass "continue to first thread: get to thread"
|
|
}
|
|
-re ".*$gdb_prompt $" {
|
|
fail "continue to first thread: no progress?"
|
|
}
|
|
timeout { fail "continue to first thread (timeout)" }
|
|
}
|
|
|
|
gdb_test "info thread" ".*Thread.*spin.*" \
|
|
"at least one th in spin while stopped at first th"
|
|
|
|
check_thread_local "first"
|
|
|
|
gdb_test "continue" ".*Breakpoint 2.*tls value.*" "continue to second thread"
|
|
gdb_test "info thread" "Thread.*spin.*" \
|
|
"at least one th in spin while stopped at second th"
|
|
|
|
check_thread_local "second"
|
|
|
|
gdb_test "continue" ".*Breakpoint 2.*tls value.*" "continue to third thread"
|
|
gdb_test "info thread" ".*Thread.*spin.*" \
|
|
"at least one th in spin while stopped at third th"
|
|
|
|
check_thread_local "third"
|
|
|
|
gdb_test "continue" ".*Breakpoint 3.*still alive.*" "continue to synch point"
|
|
|
|
set no_of_threads 0
|
|
send_gdb "info thread\n"
|
|
gdb_expect {
|
|
-re "^info thread\[ \t\r\n\]+(\[0-9\]+) Thread.*$gdb_prompt $" {
|
|
set no_of_threads $expect_out(1,string)
|
|
pass "get number of threads"
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
fail "get number of threads"
|
|
}
|
|
timeout {
|
|
fail "get number of threads (timeout)"
|
|
}
|
|
}
|
|
|
|
array set spin_threads {}
|
|
unset spin_threads
|
|
array set spin_threads_level {}
|
|
unset spin_threads_level
|
|
|
|
# For each thread check its backtrace to see if it is stopped at the
|
|
# spin routine.
|
|
for {set i 1} {$i <= $no_of_threads} {incr i} {
|
|
check_thread_stack $i spin_threads spin_threads_level
|
|
}
|
|
|
|
### Loop through the threads and check the values of the tls variables.
|
|
### keep track of how many threads we find in the spin routine.
|
|
set thrs_in_spin 0
|
|
foreach i [array names spin_threads] {
|
|
if {$spin_threads($i) == 1} {
|
|
incr thrs_in_spin
|
|
select_thread $i
|
|
set level $spin_threads_level($i)
|
|
gdb_test "up $level" ".*spin.*sem_wait.*" "thread $i up"
|
|
check_thread_local $i
|
|
}
|
|
}
|
|
|
|
if {$thrs_in_spin == 0} {
|
|
fail "No thread backtrace reported spin (vsyscall kernel problem?)"
|
|
}
|
|
|
|
gdb_test "continue" ".*Breakpoint 4.*before exit.*" "threads exited"
|
|
|
|
send_gdb "info thread\n"
|
|
gdb_expect {
|
|
-re ".* 1 Thread.*2 Thread.*$gdb_prompt $" {
|
|
fail "Too many threads left at end"
|
|
}
|
|
-re ".*\\\* 1 Thread.*main.*$gdb_prompt $" {
|
|
pass "Expect only base thread at end"
|
|
}
|
|
-re ".*No stack.*$gdb_prompt $" {
|
|
fail "runaway at end"
|
|
}
|
|
-re ".*$gdb_prompt $" {
|
|
fail "mess at end"
|
|
}
|
|
timeout { fail "at end (timeout)" }
|
|
}
|
|
|
|
# Start over and do some "info address" stuff
|
|
#
|
|
runto spin
|
|
|
|
gdb_test "info address a_global" \
|
|
".*a_global.*static storage at address.*" "info address a_global"
|
|
|
|
setup_kfail "gdb/1294" "*-*-*"
|
|
gdb_test "info address me" ".*me.*is a variable at offset.*" "info address me"
|
|
|
|
# Done!
|
|
#
|
|
gdb_exit
|
|
|
|
return 0
|