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This commit adds a new $_gthread convenience variable, that is like $_thread, but holds the current thread's global thread id. gdb/ChangeLog: 2016-01-13 Pedro Alves <palves@redhat.com> * NEWS: Mention $_gthread. * gdbthread.h (struct thread_info) <global_num>: Mention $_gthread. * thread.c (thread_num_make_value_helper): New function. (thread_id_make_value): Delete. (thread_id_per_inf_num_make_value, global_thread_id_make_value): New. (thread_funcs): Adjust. (gthread_funcs): New. (_initialize_thread): Register $_gthread variable. gdb/testsuite/ChangeLog: 2016-01-13 Pedro Alves <palves@redhat.com> * gdb.base/default.exp: Expect $_gthread as well. * gdb.multi/tids.exp: Test $_gthread. * gdb.threads/thread-specific.exp: Test $_gthread. gdb/doc/ChangeLog: 2016-01-13 Pedro Alves <palves@redhat.com> * gdb.texinfo (Threads): Document the $_gthread convenience variable. (Convenience Vars): Likewise.
133 lines
3.9 KiB
Plaintext
133 lines
3.9 KiB
Plaintext
# Copyright 2004-2016 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file was written by Daniel Jacobowitz <drow@mvista.com>.
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# It tests that the correct breakpoint is reported when we hit a
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# thread-specific breakpoint inserted for several threads.
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standard_testfile
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
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return -1
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}
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# Return a list of the valid thread IDs, with the initial thread first.
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proc get_thread_list { } {
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global gdb_prompt
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global expect_out
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set thr_list ""
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gdb_test_multiple "info threads" "get threads list" {
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-re "info threads\r\n" {
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exp_continue
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}
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-re "New Thread \[^\n\]*\n" {
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exp_continue
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}
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-re "^ *Id *Target Id\[^\n\]*\n" {
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exp_continue
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}
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-re "^\\* *(\[0-9\]*) *Thread \[^\n\]*main\[^\n\]*\n" {
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set thr_list "$expect_out(1,string) $thr_list"
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exp_continue
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}
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-re "^ *(\[0-9\]*) *Thread \[^\n\]*\n" {
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lappend thr_list $expect_out(1,string)
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exp_continue
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}
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-re ".*$gdb_prompt $" {
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if { [llength $thr_list] != 0 } {
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pass "get threads list"
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} else {
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fail "get threads list (no threads)"
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}
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}
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}
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return $thr_list
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}
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clean_restart ${binfile}
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gdb_test_no_output "set print sevenbit-strings"
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gdb_test_no_output "set width 0"
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# As this test only runs a single inferior, $_thread and $_gthread
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# should match throughout.
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gdb_test {print $_thread} ".* = 0" "thread var when not running"
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gdb_test {print $_gthread} ".* = 0" "gthread var when not running"
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runto_main
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gdb_breakpoint [gdb_get_line_number "thread-specific.exp: last thread start"]
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gdb_continue_to_breakpoint "all threads started"
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set line [gdb_get_line_number "thread-specific.exp: thread loop"]
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set threads [get_thread_list]
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if {[llength $threads] == 0} {
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# We have already issued a FAIL above.
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return 1
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}
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gdb_test {print $_thread} ".* = [lindex $threads 0]" "thread var in main"
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gdb_test {print $_gthread} ".* = [lindex $threads 0]" "gthread var in main"
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gdb_test_multiple "break $line thread [lindex $threads 0]" \
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"breakpoint $line main thread" {
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-re "Breakpoint (\[0-9\]*) at.* file .*$srcfile, line.*$gdb_prompt $" {
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set main_breakpoint $expect_out(1,string)
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pass "breakpoint $line main thread"
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}
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}
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foreach thread [lrange $threads 1 end] {
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gdb_breakpoint "$line thread $thread"
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}
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set this_breakpoint -1
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gdb_test_multiple "continue" "continue to thread-specific breakpoint" {
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-re "Breakpoint $main_breakpoint, .* at .*\r\n$gdb_prompt $" {
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fail "continue to thread-specific breakpoint (wrong breakpoint)"
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}
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-re "Breakpoint (\[0-9\]*), .* at .*\r\n$gdb_prompt $" {
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set this_breakpoint $expect_out(1,string)
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pass "continue to thread-specific breakpoint"
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}
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}
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set this_thread -1
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if { $this_breakpoint != -1 } {
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gdb_test_multiple "info breakpoint $this_breakpoint" "info on bp" {
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-re ".*stop only in thread (\[0-9\]*).*$gdb_prompt $" {
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set this_thread $expect_out(1,string)
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pass "found breakpoint for thread number"
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}
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}
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} else {
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untested "info on bp"
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}
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if { $this_thread != -1 } {
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gdb_test {print $_thread} ".* = $this_thread" "thread var at break"
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gdb_test {print $_gthread} ".* = $this_thread" "gthread var at break"
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} else {
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untested "thread var at break"
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}
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return 0
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