gdb/testsuite/gdb.threads/thread-specific.exp

# Copyright 2004-2021 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 3 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, see <http://www.gnu.org/licenses/>.

# This file was written by Daniel Jacobowitz <drow@mvista.com>.
# It tests that the correct breakpoint is reported when we hit a
# thread-specific breakpoint inserted for several threads.


standard_testfile

if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
    return -1
}

# Return a list of the valid thread IDs, with the initial thread first.
proc get_thread_list { } {
  global gdb_prompt
  global expect_out

  set thr_list ""

  gdb_test_multiple "info threads" "get threads list" {
    -re "info threads\r\n" {
      exp_continue
    }
    -re "New Thread \[^\n\]*\n" {
      exp_continue
    }
    -re "^ *Id *Target Id\[^\n\]*\n" {
      exp_continue
    }
    -re "^\\*  *(\[0-9\]*) *Thread \[^\n\]*main\[^\n\]*\n" {
      set thr_list "$expect_out(1,string) $thr_list"
      exp_continue
    }
    -re "^  *(\[0-9\]*) *Thread \[^\n\]*\n" {
      lappend thr_list $expect_out(1,string)
      exp_continue
    }
    -re ".*$gdb_prompt $" {
      if { [llength $thr_list] != 0 } {
	pass "get threads list"
      } else {
	fail "get threads list (no threads)"
      }
    }
  }

  return $thr_list
}

clean_restart ${binfile}

gdb_test_no_output "set print sevenbit-strings"
gdb_test_no_output "set width 0"

# As this test only runs a single inferior, $_thread and $_gthread
# should match throughout.
gdb_test {print $_thread} ".* = 0" "thread var when not running"
gdb_test {print $_gthread} ".* = 0" "gthread var when not running"

runto_main

gdb_breakpoint [gdb_get_line_number "thread-specific.exp: last thread start"]
gdb_continue_to_breakpoint "all threads started"

set line [gdb_get_line_number "thread-specific.exp: thread loop"]
set threads [get_thread_list]

if {[llength $threads] == 0} {
  # We have already issued a FAIL above.
  return 1
}

gdb_test {print $_thread} ".* = [lindex $threads 0]" "thread var in main"
gdb_test {print $_gthread} ".* = [lindex $threads 0]" "gthread var in main"

gdb_test_multiple "break $line thread [lindex $threads 0]" \
  "breakpoint $line main thread" {
    -re "Breakpoint (\[0-9\]*) at.* file .*$srcfile, line.*$gdb_prompt $" {
      set main_breakpoint $expect_out(1,string)
      pass "breakpoint $line main thread"
    }
}

foreach thread [lrange $threads 1 end] {
  gdb_breakpoint "$line thread $thread"
}

set this_breakpoint -1
gdb_test_multiple "continue" "continue to thread-specific breakpoint" {
	-re "Breakpoint $main_breakpoint, .* at .*\r\n$gdb_prompt $" {
	    fail "continue to thread-specific breakpoint (wrong breakpoint)"
	}
	-re "Breakpoint (\[0-9\]*), .* at .*\r\n$gdb_prompt $" {
	    set this_breakpoint $expect_out(1,string)
	    pass "continue to thread-specific breakpoint"
	}
}

set this_thread -1
if { $this_breakpoint != -1 } {
    gdb_test_multiple "info breakpoint $this_breakpoint" "info on bp" {
	-re ".*stop only in thread (\[0-9\]*).*$gdb_prompt $" {
	    set this_thread $expect_out(1,string)
	    pass "found breakpoint for thread number"
	}
    }
} else {
    untested "info on bp"
}

if { $this_thread != -1 } {
    gdb_test {print $_thread} ".* = $this_thread" "thread var at break"
    gdb_test {print $_gthread} ".* = $this_thread" "gthread var at break"
} else {
    untested "thread var at break"
}

return 0